/*
 * Metaseed Design System
 * Aesthetic: Botanical Research Lab - Scientific precision meets organic warmth
 */

/* ============================================
   FONTS & VARIABLES
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,500;0,9..144,700;1,9..144,400&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
    /* Botanical palette */
    --clr-forest: #1a3a2f;
    --clr-forest-light: #2d5a4a;
    --clr-moss: #4a7c59;
    --clr-sage: #87a878;
    --clr-ivory: #faf8f5;
    --clr-paper: #f5f2ed;
    --clr-parchment: #ebe6df;
    --clr-ink: #2c3e35;
    --clr-ink-light: #5a6b62;
    --clr-accent: #c17f59;
    --clr-accent-light: #d9a882;
    --clr-error: #b54848;
    --clr-error-bg: #fdf2f2;
    --clr-success: #3d7a5a;
    --clr-success-bg: #f0f7f3;
    --clr-warning: #a67c3d;
    --clr-warning-bg: #fdf8f0;

    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Borders & Shadows */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(26, 58, 47, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 58, 47, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 58, 47, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-med: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--clr-ink);
    background: var(--clr-paper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100%;
}

/* Subtle paper texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: 9999;
}

::selection {
    background: var(--clr-sage);
    color: white;
}

/* ============================================
   LAYOUT
   ============================================ */
.layout {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
}

/* Footer */
.footer {
    padding: var(--space-sm) var(--space-xl);
    background: var(--clr-parchment);
    border-top: 1px solid var(--clr-sage);
    text-align: right;
}

.footer-version {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

/* Full-height layout that prevents scrolling (for ERD pages) */
.layout.layout-fixed {
    height: 100vh;
    min-height: 0;
    overflow: hidden;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background: var(--clr-forest);
    padding: var(--space-md) var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 16px rgba(26, 58, 47, 0.2);
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--clr-sage), transparent);
    opacity: 0.3;
}

.header-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--clr-ivory);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header-logo {
    height: 32px;
    width: auto;
}

.header-title::before {
    content: none;
    display: inline-block;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--clr-sage) 0%, var(--clr-moss) 100%);
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: auto;
}

.btn-header {
    font-family: var(--font-body);
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    color: var(--clr-ivory);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
}

.btn-header:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.btn-header:active {
    transform: translateY(0);
}

.btn-header.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.35);
}

.header-divider {
    width: 1px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 var(--space-sm);
}

.btn-file {
    cursor: pointer;
}

.btn-file input[type="file"] {
    display: none;
}

/* Header Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: var(--space-lg);
    padding: 4px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

/* Header Breadcrumb */
.header-breadcrumb {
    display: flex;
    align-items: center;
    margin-left: var(--space-md);
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.header-breadcrumb .header-sep {
    opacity: 0.5;
    margin: 0 0.5rem;
}

.header-breadcrumb .spec-name {
    color: var(--clr-ivory);
}

.header-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.header-breadcrumb a:hover {
    color: var(--clr-ivory);
}

.nav-btn {
    font-family: var(--font-body);
    padding: 6px 14px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-btn:hover {
    color: var(--clr-ivory);
    background: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--clr-ivory);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main {
    padding: var(--space-xl);
    background: var(--clr-ivory);
    overflow-y: auto;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-forest) 0%, var(--clr-forest-light) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(26, 58, 47, 0.25);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 4px 16px rgba(26, 58, 47, 0.35);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--clr-parchment);
    color: var(--clr-ink);
    border: 1px solid rgba(26, 58, 47, 0.1);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--clr-paper);
    border-color: rgba(26, 58, 47, 0.2);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--clr-moss);
    border: 1px solid var(--clr-moss);
    text-decoration: none;
}

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--clr-moss);
    color: white;
}

.btn-danger {
    background: var(--clr-error);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #a03c3c;
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.8125rem;
}

.btn-icon {
    padding: var(--space-xs);
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--clr-ink-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.btn-icon:hover {
    background: var(--clr-parchment);
    color: var(--clr-ink);
}

.btn-icon.danger:hover {
    background: var(--clr-error-bg);
    color: var(--clr-error);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: white;
    border: 1px solid rgba(26, 58, 47, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    position: relative;
    animation: cardEnter 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--space-lg);
    right: var(--space-lg);
    height: 3px;
    background: linear-gradient(90deg, var(--clr-moss), var(--clr-sage), var(--clr-accent-light));
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--clr-forest);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.card-subtitle {
    color: var(--clr-ink-light);
    font-size: 0.9375rem;
    margin-bottom: var(--space-lg);
    line-height: 1.5;
}

/* ============================================
   FORMS
   ============================================ */
.form-section {
    margin-bottom: var(--space-xl);
}

.form-section-title {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--clr-forest);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--clr-parchment);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.form-section-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--clr-moss);
    border-radius: 2px;
}

.form-group {
    display: inline-block;
    vertical-align: top;
    margin-right: var(--space-xl);
    margin-bottom: var(--space-md);
    min-width: 220px;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--clr-ink);
    font-size: 0.875rem;
}

.form-label .required {
    color: var(--clr-error);
    margin-left: 2px;
}

.form-input {
    width: 100%;
    max-width: 380px;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--clr-ink);
    background: white;
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: var(--clr-ink-light);
    opacity: 0.5;
}

.form-input:hover {
    border-color: var(--clr-sage);
}

.form-input:focus {
    outline: none;
    border-color: var(--clr-moss);
    box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.12);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--clr-error);
}

.form-input-readonly {
    background-color: var(--clr-paper);
    color: var(--clr-ink-light);
    cursor: not-allowed;
    border-style: dashed;
}

.form-input-readonly:hover,
.form-input-readonly:focus {
    border-color: var(--clr-parchment);
    box-shadow: none;
}

.auto-field {
    font-size: 0.75rem;
    color: var(--clr-moss);
    font-weight: 400;
    margin-left: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--clr-moss);
    cursor: pointer;
}

.form-help {
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
    margin-top: var(--space-xs);
    line-height: 1.4;
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--clr-parchment);
}

/* ============================================
   COLLAPSIBLE SECTIONS
   ============================================ */
.collapsible {
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-lg);
    background: white;
}

.collapsible-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--clr-paper);
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
    font-weight: 500;
    color: var(--clr-ink);
}

.collapsible-header:hover {
    background: var(--clr-parchment);
}

.collapsible-icon {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    transition: transform var(--transition-med);
}

.collapsible.open .collapsible-icon {
    transform: rotate(90deg);
}

.collapsible-content {
    padding: var(--space-lg);
    display: none;
    border-top: 1px solid var(--clr-parchment);
}

.collapsible.open .collapsible-content {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   NESTED FIELD BUTTONS
   ============================================ */
.nested-field-btn {
    width: 100%;
    justify-content: flex-start;
    background: var(--clr-paper);
    border: 2px dashed var(--clr-parchment);
    color: var(--clr-ink);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nested-field-btn:hover {
    background: var(--clr-parchment);
    border-color: var(--clr-sage);
    border-style: solid;
}

/* ============================================
   TABLES
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9375rem;
}

.data-table th,
.data-table td {
    border: 1px solid var(--clr-parchment);
    text-align: left;
}

.data-table th {
    background: var(--clr-paper);
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: var(--space-sm) var(--space-md);
}

.data-table th:first-child {
    border-top-left-radius: var(--radius-md);
}

.data-table th:last-child {
    border-top-right-radius: var(--radius-md);
}

.data-table td {
    padding: 0;
    background: white;
}

.data-table td .form-input {
    border: none;
    border-radius: 0;
    padding: var(--space-sm) var(--space-md);
    max-width: none;
    background: transparent;
}

.data-table td .form-input:focus {
    outline: 2px solid var(--clr-moss);
    outline-offset: -2px;
    box-shadow: none;
    background: var(--clr-success-bg);
}

.data-table td .form-input:invalid,
.data-table td .form-input.invalid {
    background-color: var(--clr-error-bg);
}

.data-table td .form-input.invalid:focus {
    outline-color: var(--clr-error);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--clr-paper);
}

.data-table tbody tr:last-child td:first-child {
    border-bottom-left-radius: var(--radius-md);
}

.data-table tbody tr:last-child td:last-child {
    border-bottom-right-radius: var(--radius-md);
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.table-actions {
    display: flex;
    gap: var(--space-sm);
}

.row-actions {
    display: flex;
    gap: var(--space-xs);
    justify-content: center;
    padding: var(--space-xs) !important;
    background: var(--clr-paper);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-paper);
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-parchment);
}

.breadcrumb-item {
    color: var(--clr-ink-light);
}

.breadcrumb-item a {
    color: var(--clr-moss);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--clr-forest);
}

.breadcrumb-item.active {
    color: var(--clr-ink);
    font-weight: 500;
}

.breadcrumb-separator,
.breadcrumb-sep {
    color: var(--clr-ink-light);
    opacity: 0.5;
}

/* ============================================
   NOTIFICATIONS
   ============================================ */
.notification-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column-reverse;
    gap: var(--space-sm);
}

.notification {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    max-width: 400px;
    font-size: 0.9375rem;
    box-shadow: var(--shadow-lg);
    animation: notificationSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-left: 4px solid;
}

@keyframes notificationSlide {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-success {
    background: var(--clr-success-bg);
    color: var(--clr-success);
    border-left-color: var(--clr-success);
}

.notification-error {
    background: var(--clr-error-bg);
    color: var(--clr-error);
    border-left-color: var(--clr-error);
}

/* Field validation error highlight */
.field-error,
.field-error .form-input,
.field-error input,
.field-error select,
.field-error textarea {
    border-color: var(--clr-error) !important;
    background-color: var(--clr-error-bg) !important;
}

.field-error label {
    color: var(--clr-error);
}

.notification-warning {
    background: var(--clr-warning-bg);
    color: var(--clr-warning);
    border-left-color: var(--clr-warning);
}

/* ============================================
   WELCOME SCREEN
   ============================================ */
.welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: var(--space-2xl);
    animation: welcomeFade 0.6s ease;
}

@keyframes welcomeFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.welcome::before {
    content: '';
    width: 100px;
    height: 100px;
    margin-bottom: var(--space-xl);
    background: url('/static/images/metaseed-icon.svg') center/contain no-repeat;
    border-radius: 0;
    box-shadow: none;
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(2deg); }
}

.welcome h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 500;
    color: var(--clr-forest);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.welcome p {
    color: var(--clr-ink-light);
    font-size: 1.0625rem;
    max-width: 400px;
}

/* ============================================
   PROFILE SELECTION
   ============================================ */
.profile-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.profile-option {
    padding: var(--space-xl);
    border: 2px solid var(--clr-parchment);
    border-radius: var(--radius-lg);
    background: white;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-med);
    position: relative;
    overflow: hidden;
}

.profile-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-moss), var(--clr-sage));
    transform: scaleX(0);
    transition: transform var(--transition-med);
}

.profile-option:hover {
    border-color: var(--clr-moss);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.profile-option:hover::before {
    transform: scaleX(1);
}

.profile-option h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--clr-forest);
    margin-bottom: var(--space-sm);
}

.profile-option p {
    font-size: 0.9375rem;
    color: var(--clr-ink-light);
    margin: 0;
    line-height: 1.5;
}

/* ============================================
   DIALOG / MODAL
   ============================================ */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 58, 47, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    animation: overlayFade 0.2s ease;
}

@keyframes overlayFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.dialog {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: dialogSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dialogSlide {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.dialog-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--clr-forest);
    margin-bottom: var(--space-sm);
}

.dialog-content {
    margin-bottom: var(--space-lg);
    color: var(--clr-ink-light);
    line-height: 1.6;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
}

/* ============================================
   VALIDATION ERRORS
   ============================================ */
.validation-errors {
    margin-top: var(--space-lg);
}

.validation-error-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.validation-error-item {
    padding: var(--space-sm) var(--space-md);
    border-left: 3px solid var(--clr-error);
    background: var(--clr-error-bg);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--clr-error);
}

.validation-rules-summary {
    margin-top: var(--space-md);
    font-size: 0.875rem;
}

.validation-rules-summary summary {
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

.validation-rules-summary summary:hover {
    background: var(--clr-bg-alt);
}

.validation-rules-list {
    list-style: none;
    padding: 0;
    margin: var(--space-sm) 0 0 0;
}

.validation-rule-item {
    padding: var(--space-xs) var(--space-md);
    border-left: 2px solid var(--clr-border);
    margin-bottom: var(--space-xs);
    font-size: 0.8125rem;
}

.validation-rule-item strong {
    color: var(--clr-ink);
}

/* Validation Checks Display */
.validation-checks-summary {
    margin-top: var(--space-md);
    font-size: 0.875rem;
}

.validation-checks-summary summary {
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

.validation-checks-summary summary:hover {
    background: var(--clr-bg-alt);
}

.validation-checks-list {
    list-style: none;
    padding: 0;
    margin: var(--space-sm) 0 0 0;
}

.validation-checks-detail {
    margin-top: var(--space-md);
}

.validation-field-group {
    margin-bottom: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-bg-alt);
    border-radius: var(--radius-sm);
}

.validation-field-group > strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--clr-ink);
    font-size: 0.9375rem;
}

.validation-field-checks {
    list-style: none;
    padding: 0;
    margin: 0;
}

.validation-check-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    font-size: 0.8125rem;
}

.check-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25em;
    height: 1.25em;
    font-weight: 700;
    font-size: 0.875rem;
}

.check-icon.check-passed {
    color: var(--clr-success);
}

.check-icon.check-failed {
    color: var(--clr-error);
}

.check-name {
    color: var(--clr-ink);
}

.validation-check-failed .check-name {
    font-weight: 500;
}

.check-message {
    font-size: 0.75rem;
}

/* Validation Panel (full dataset validation) */
.validation-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    max-width: 90vw;
    height: 100vh;
    background: var(--clr-bg);
    border-left: 1px solid var(--clr-border);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    transition: transform 0.2s ease;
}

.validation-panel.hidden {
    transform: translateX(100%);
    display: flex;
}

.validation-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    border-bottom: 1px solid var(--clr-border);
    background: var(--clr-bg-alt);
}

.validation-panel-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.validation-panel-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--clr-ink-light);
    padding: 0;
    line-height: 1;
}

.validation-panel-close:hover {
    color: var(--clr-ink);
}

.validation-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
}

.validation-summary {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--clr-bg-alt);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.validation-total {
    color: var(--clr-ink);
}

.validation-valid {
    color: var(--clr-success);
}

.validation-invalid {
    color: var(--clr-error);
}

.validation-success {
    padding: var(--space-md);
    background: var(--clr-success-bg, rgba(16, 185, 129, 0.1));
    color: var(--clr-success);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 500;
}

.validation-item {
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-sm);
    border-radius: var(--radius-sm);
}

.validation-item.invalid {
    background: var(--clr-error-bg);
    border-left: 3px solid var(--clr-error);
}

.validation-item strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--clr-ink);
}

.validation-item ul {
    margin: 0;
    padding-left: var(--space-md);
    font-size: 0.875rem;
}

.validation-item li {
    margin-bottom: var(--space-xs);
    color: var(--clr-error);
}

.validation-item code {
    background: rgba(0, 0, 0, 0.05);
    padding: 0.1em 0.3em;
    border-radius: 3px;
    font-size: 0.85em;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-muted { color: var(--clr-ink-light); }
.text-small { font-size: 0.8125rem; }
.text-danger { color: var(--clr-error); }
.text-success { color: var(--clr-success); }

.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-4 { margin-top: var(--space-md); }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-4 { margin-bottom: var(--space-md); }

.hidden { display: none; }

/* ============================================
   HTMX STATES
   ============================================ */
.htmx-request .htmx-indicator {
    opacity: 1;
}

.htmx-indicator {
    opacity: 0;
    transition: opacity 0.2s;
}

/* Loading state for buttons */
.htmx-request.btn {
    position: relative;
    color: transparent;
}

.htmx-request.btn::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .header {
        padding: var(--space-md);
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .header-actions {
        flex-wrap: wrap;
    }

    .main {
        padding: var(--space-md);
    }

    .card {
        padding: var(--space-lg);
    }

    .form-group {
        display: block;
        margin-right: 0;
        min-width: auto;
    }

    .form-input {
        max-width: none;
    }

    .form-actions {
        flex-wrap: wrap;
    }

    .welcome::before {
        width: 80px;
        height: 80px;
    }

    .welcome h2 {
        font-size: 1.5rem;
    }
}

/* ============================================
   ENTITY LIST (after import)
   ============================================ */
.entity-list {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.entity-list h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--clr-forest);
    margin-bottom: var(--space-lg);
}

.entity-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.entity-item.child {
    /* Indentation now handled by .entity-children wrapper */
}

.btn-entity {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.btn-entity:hover {
    background: var(--clr-ivory);
    border-color: var(--clr-sage);
    box-shadow: var(--shadow-sm);
}

.entity-type {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--clr-moss);
    background: var(--clr-success-bg);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.entity-label {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--clr-ink);
    flex: 1;
    text-align: left;
}

.btn-delete {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--clr-ink-light);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s ease;
}

.btn-delete:hover {
    background: var(--clr-error-bg);
    border-color: var(--clr-error);
    color: var(--clr-error);
}

.entity-children {
    margin-top: var(--space-xs);
    margin-bottom: var(--space-md);
    padding-left: var(--space-xl);
    border-left: 2px solid var(--clr-sage);
    margin-left: var(--space-md);
}

/* ============================================
   BULK EDIT / EXCEL-STYLE EDITING
   ============================================ */

/* Selection column */
.select-header,
.select-cell {
    width: 40px;
    text-align: center;
    padding: var(--space-xs) !important;
}

.select-header input[type="checkbox"],
.select-cell input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--clr-moss);
    cursor: pointer;
}

/* Selected row highlight */
.data-table tbody tr.selected {
    background: var(--clr-success-bg);
}

.data-table tbody tr.selected:hover {
    background: #e5f0e9;
}

/* Editable cell structure */
.editable-cell {
    position: relative;
    cursor: pointer;
}

.editable-cell .cell-display {
    display: block;
    padding: var(--space-sm) var(--space-md);
    min-height: 1.4em;
}

.editable-cell .cell-input {
    display: none;
}

.editable-cell.editing .cell-display {
    display: none;
}

.editable-cell.editing .cell-input {
    display: block;
}

.editable-cell.editing {
    outline: 2px solid var(--clr-moss);
    outline-offset: -2px;
    background: var(--clr-success-bg);
}

/* Read-only cells (auto-filled parent references) */
.editable-cell.readonly-cell {
    cursor: default;
    background: var(--clr-paper);
}

.editable-cell.readonly-cell .cell-display {
    color: var(--clr-ink-light);
    font-style: italic;
}

.editable-cell.readonly-cell .cell-input {
    background: var(--clr-paper);
    color: var(--clr-ink-light);
    cursor: not-allowed;
}

/* Bulk edit toolbar */
.bulk-edit-toolbar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.bulk-edit-toolbar.hidden {
    display: none;
}

.bulk-edit-count {
    font-weight: 500;
    color: var(--clr-ink);
    white-space: nowrap;
}

.bulk-edit-field {
    width: 180px;
}

.bulk-edit-value {
    flex: 1;
    max-width: 300px;
}

/* ============================================
   LOOKUP / AUTOCOMPLETE
   ============================================ */

/* Cell input wrapper for lookup fields */
.cell-input-wrapper {
    display: flex;
    align-items: stretch;
    position: relative;
}

.cell-input-wrapper .cell-input {
    flex: 1;
}

.cell-input-wrapper.has-lookup .cell-input {
    padding-right: var(--space-xl);
}

/* Lookup button */
.lookup-btn {
    position: absolute;
    right: 2px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--clr-ink-light);
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: none;
}

.cell-input-wrapper:hover .lookup-btn,
.editable-cell.editing .lookup-btn {
    display: block;
}

.lookup-btn:hover {
    background: var(--clr-parchment);
    color: var(--clr-moss);
}

/* Autocomplete dropdown */
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 100;
    max-height: 280px;
    display: flex;
    flex-direction: column;
    margin-top: 2px;
}

.autocomplete-search-wrapper {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--clr-parchment);
    flex-shrink: 0;
}

.autocomplete-search {
    width: 100%;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-body);
}

.autocomplete-search:focus {
    outline: none;
    border-color: var(--clr-moss);
}

.autocomplete-results {
    overflow-y: auto;
    flex: 1;
}

.autocomplete-empty {
    padding: var(--space-md);
    text-align: center;
    color: var(--clr-ink-light);
    font-size: 0.875rem;
}

.autocomplete-item {
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 2px;
    border-bottom: 1px solid var(--clr-paper);
    transition: background var(--transition-fast);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background: var(--clr-paper);
}

.autocomplete-item.active {
    background: var(--clr-success-bg);
}

.autocomplete-value {
    font-weight: 500;
    color: var(--clr-ink);
    font-size: 0.875rem;
}

.autocomplete-label {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

/* ============================================
   LOOKUP MODAL
   ============================================ */

.lookup-modal {
    position: fixed;
    inset: 0;
    z-index: 1002;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lookup-modal.hidden {
    display: none;
}

.lookup-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(26, 58, 47, 0.6);
    backdrop-filter: blur(4px);
    animation: overlayFade 0.2s ease;
}

.lookup-modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: dialogSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.lookup-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--clr-parchment);
}

.lookup-modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--clr-forest);
    margin: 0;
}

.lookup-modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--clr-ink-light);
    cursor: pointer;
    padding: var(--space-xs);
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lookup-modal-close:hover {
    background: var(--clr-parchment);
    color: var(--clr-ink);
}

.lookup-modal-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    overflow: hidden;
}

.lookup-modal-body .form-input {
    max-width: none;
}

.lookup-modal-results {
    flex: 1;
    overflow-y: auto;
    max-height: 300px;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
}

.lookup-modal-item {
    padding: var(--space-sm) var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    border-bottom: 1px solid var(--clr-paper);
    transition: background var(--transition-fast);
}

.lookup-modal-item:last-child {
    border-bottom: none;
}

.lookup-modal-item:hover {
    background: var(--clr-paper);
}

.lookup-modal-item-value {
    font-weight: 500;
    color: var(--clr-ink);
}

.lookup-modal-item-label {
    font-size: 0.875rem;
    color: var(--clr-ink-light);
    margin-left: var(--space-xs);
}

.lookup-modal-loading,
.lookup-modal-empty,
.lookup-modal-error {
    padding: var(--space-xl);
    text-align: center;
    color: var(--clr-ink-light);
}

.lookup-modal-error {
    color: var(--clr-error);
}

/* Modal controls row */
.lookup-modal-controls {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.lookup-modal-controls .form-input {
    flex: 1;
}

.lookup-modal-multiselect-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    color: var(--clr-ink-light);
    cursor: pointer;
    white-space: nowrap;
}

.lookup-modal-multiselect-toggle input {
    cursor: pointer;
}

/* Multi-select checkbox in items */
.lookup-modal-item-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
    width: 100%;
}

.lookup-modal-item-checkbox input[type="checkbox"] {
    margin-top: 2px;
    cursor: pointer;
    flex-shrink: 0;
}

.lookup-modal-item-checkbox .lookup-modal-item-value,
.lookup-modal-item-checkbox .lookup-modal-item-label {
    display: block;
}

/* Selection count */
.lookup-modal-selection {
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-success-bg);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--clr-success);
    font-weight: 500;
}

.lookup-modal-selection.hidden {
    display: none;
}

/* Modal footer */
.lookup-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-top: 1px solid var(--clr-parchment);
    background: var(--clr-paper);
}

.lookup-modal-footer.hidden {
    display: none;
}

/* Selected items as chips */
.lookup-modal-selected {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    padding: 0 var(--space-md);
    margin-bottom: var(--space-sm);
    min-height: 0;
}

.lookup-modal-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: var(--clr-sky);
    color: var(--clr-ink);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
}

.lookup-modal-chip-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    padding: 0;
    border: none;
    background: var(--clr-ink);
    color: var(--clr-paper);
    border-radius: 50%;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.lookup-modal-chip-remove:hover {
    background: var(--clr-rust);
}

/* Add button on result items */
.lookup-modal-item-add {
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    background: var(--clr-moss);
    color: var(--clr-paper);
    border-radius: 50%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    flex-shrink: 0;
}

.lookup-modal-item-add:hover {
    background: var(--clr-forest);
}

.lookup-modal-item-add.hidden {
    display: none;
}

/* ============================================
   ONTOLOGY LOOKUP STYLES
   ============================================ */

/* Ontology term display (used in modal) */
.ontology-term-id {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--clr-forest);
    background: var(--clr-success-bg);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.ontology-term-label {
    font-weight: 500;
    color: var(--clr-ink);
    font-size: 0.9rem;
}

.ontology-source {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--clr-moss);
    background: var(--clr-paper);
    padding: 1px 4px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.ontology-description {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    line-height: 1.3;
}

/* Ontology modal specific styles */
.ontology-modal-content {
    max-width: 640px;
    width: 90vw;
}

/* Ontology modal search input - prominent styling */
#ontology-modal-search {
    display: block;
    width: 100%;
    max-width: none;
    box-sizing: border-box;
    padding: var(--space-md) var(--space-lg);
    font-size: 1.1rem;
    border: 2px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    background: var(--clr-paper);
    transition: all var(--transition-fast);
}

#ontology-modal-search:focus {
    outline: none;
    border-color: var(--clr-forest);
    background: white;
    box-shadow: 0 0 0 3px rgba(26, 58, 47, 0.1);
}

#ontology-modal-search::placeholder {
    color: var(--clr-ink-light);
}

.ontology-results {
    max-height: 350px;
    margin-top: var(--space-md);
}

.ontology-modal-item {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    gap: var(--space-sm);
    border-radius: var(--radius-sm);
}

.ontology-modal-item:hover {
    background: var(--clr-success-bg);
}

.ontology-modal-item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.ontology-modal-item-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.ontology-modal-item-meta {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.ontology-source-badge {
    font-size: 0.65rem;
    font-weight: 700;
    color: white;
    background: var(--clr-moss);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    flex-shrink: 0;
}

/* Ontology chip styling */
.ontology-chip {
    background: var(--clr-success-bg);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* Input with lookup button container */
.input-with-lookup {
    display: flex;
    gap: var(--space-xs);
    align-items: stretch;
}

.input-with-lookup .form-input {
    flex: 1;
}

.ontology-lookup-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    padding: 0;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    background: var(--clr-paper);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.ontology-lookup-btn:hover {
    background: var(--clr-sky);
    border-color: var(--clr-sky);
}

/* ============================================
   INLINE TABLES
   ============================================ */

.inline-table-section {
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.inline-table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-parchment);
    cursor: pointer;
    user-select: none;
}

.inline-table-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
}

.inline-table-title h4 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--clr-ink);
}

.inline-table-icon {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    transition: transform 0.2s ease;
}

.inline-table-section.collapsed .inline-table-icon {
    transform: rotate(-90deg);
}

.inline-table-count {
    font-size: 0.875rem;
    color: var(--clr-ink-light);
}

.inline-table-content {
    max-height: 600px;
    overflow: auto;
    transition: max-height 0.3s ease;
}

.inline-table-section.collapsed .inline-table-content {
    max-height: 0;
    overflow: hidden;
}

.inline-data-table {
    margin: 0;
    border-radius: 0;
}

.inline-data-table th,
.inline-data-table td {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
}

.inline-data-table thead th {
    background: var(--clr-ivory);
    position: sticky;
    top: 0;
    z-index: 1;
}

.inline-data-table .row-actions {
    white-space: nowrap;
}

.inline-data-table .row-actions .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* ============================================
   GRAPH VISUALIZATION
   ============================================ */

.graph-container {
    height: calc(100vh - 80px);
    background: var(--clr-paper);
    display: flex;
    flex-direction: column;
    position: relative;
}

.graph-container.hidden {
    display: none;
}

.graph-controls {
    padding: var(--space-sm) var(--space-lg);
    background: var(--clr-ivory);
    border-bottom: 1px solid var(--clr-parchment);
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    flex-wrap: wrap;
}

.graph-control-label {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    cursor: default;
}

.graph-control-label input[type="range"] {
    width: 80px;
    accent-color: var(--clr-moss);
    cursor: pointer;
}

.graph-view {
    flex: 1;
    min-height: 500px;
    background: var(--clr-ivory);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    margin: var(--space-sm) var(--space-lg) var(--space-lg);
}

.graph-empty,
.graph-loading,
.graph-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--clr-ink-light);
    font-size: 1rem;
    text-align: center;
    padding: var(--space-xl);
}

.graph-error {
    color: var(--clr-danger, #dc2626);
}

.graph-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-md);
    padding: 0 var(--space-lg);
    margin-bottom: var(--space-xs);
    font-size: 0.75rem;
}

.graph-legend:empty {
    display: none;
}

.graph-legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: opacity 0.15s;
}

.graph-legend-item:hover {
    background: var(--clr-parchment);
}

.graph-legend-item.legend-hidden {
    opacity: 0.4;
}

.graph-legend-item.legend-empty {
    opacity: 0.5;
}

.graph-legend-item.legend-empty .graph-legend-label {
    font-style: italic;
}

.graph-legend-item input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--clr-moss);
    margin: 0;
}

.graph-legend-shape {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    border: 2px solid;
}

/* Shape variants for legend */
.graph-shape-dot {
    border-radius: 50%;
}

.graph-shape-square {
    border-radius: 2px;
}

.graph-shape-diamond {
    width: 10px;
    height: 10px;
    transform: rotate(45deg);
    border-radius: 2px;
}

.graph-shape-triangle {
    width: 0;
    height: 0;
    background: transparent !important;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 12px solid;
}

.graph-shape-triangleDown {
    width: 0;
    height: 0;
    background: transparent !important;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 12px solid;
}

.graph-shape-star {
    width: 12px;
    height: 12px;
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.graph-shape-hexagon {
    width: 12px;
    height: 12px;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.graph-legend-label {
    font-size: 0.7rem;
    color: var(--clr-ink);
    white-space: nowrap;
}

/* ============================================
   SPEC BUILDER
   ============================================ */

/* Header enhancements */
.header-sep {
    opacity: 0.5;
    margin: 0 0.5rem;
}

.spec-name {
    font-weight: 400;
    opacity: 0.9;
}

.btn-save {
    background: rgba(74, 124, 89, 0.3) !important;
    border-color: var(--clr-moss) !important;
}

.btn-save:hover {
    background: rgba(74, 124, 89, 0.5) !important;
}

/* Start page */
.spec-builder-start {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.start-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.start-option {
    background: white;
    border: 2px solid var(--clr-parchment);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    cursor: pointer;
    transition: all var(--transition-med);
    text-decoration: none;
    color: inherit;
}

.start-option:hover {
    border-color: var(--clr-moss);
    box-shadow: var(--shadow-md);
}

.start-option-icon {
    width: 48px;
    height: 48px;
    background: var(--clr-paper);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--clr-moss);
    margin-bottom: var(--space-md);
}

.start-option h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--clr-forest);
    margin-bottom: var(--space-sm);
}

.start-option p {
    color: var(--clr-ink-light);
    font-size: 0.9375rem;
    margin: 0;
}

.start-option-clone,
.start-option-import {
    cursor: default;
}

.import-form {
    margin-top: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
}

.import-form label {
    cursor: pointer;
}

.template-list {
    margin-top: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.template-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-paper);
    border-radius: var(--radius-md);
    gap: var(--space-md);
}

.template-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.template-name {
    font-weight: 500;
    color: var(--clr-ink);
}

.template-desc {
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
}

.template-versions {
    display: flex;
    gap: var(--space-xs);
}

/* User Specs Section */
.user-specs-section {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--clr-parchment);
}

.user-specs-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.user-specs-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--clr-ink);
}

.user-specs-empty {
    color: var(--clr-ink-light);
    font-size: 0.95rem;
}

.user-specs-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.user-spec-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
}

.user-spec-item:hover {
    border-color: var(--clr-forest);
}

.user-spec-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-spec-name {
    font-weight: 600;
    color: var(--clr-ink);
}

.user-spec-desc {
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
}

.user-spec-actions {
    display: flex;
    gap: var(--space-xs);
}

/* New Spec Dropdown */
.new-spec-dropdown {
    position: relative;
}

.new-spec-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-xs);
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 220px;
    z-index: 100;
    overflow: hidden;
}

.new-spec-menu.hidden {
    display: none;
}

.new-spec-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    color: var(--clr-ink);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.new-spec-option:hover {
    background: var(--clr-parchment-light);
}

.new-spec-option-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-parchment-light);
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--clr-forest);
    flex-shrink: 0;
}

.new-spec-option-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.new-spec-option-text strong {
    font-size: 0.875rem;
    color: var(--clr-ink);
}

.new-spec-option-text small {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

/* ============================================
   ERD LAYOUT
   ============================================ */

.erd-layout {
    display: flex;
    height: 100%;
    overflow: hidden;
    position: relative;
}

/* ERD Sidebar */
.erd-sidebar {
    background: var(--clr-paper);
    border-right: 1px solid var(--clr-parchment);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    width: 280px;
    flex-shrink: 0;
    transition: width 0.2s ease, border-right 0.2s ease;
}

.erd-sidebar.collapsed {
    width: 0;
    border-right: none;
    overflow: hidden;
}

.erd-sidebar.collapsed > * {
    opacity: 0;
    pointer-events: none;
}

.erd-sidebar.notes-active {
    width: 450px;
}

.erd-toolbox {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--clr-parchment);
    background: white;
}

.toolbox-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-paper);
    border: 2px dashed var(--clr-sage);
    border-radius: var(--radius-md);
    cursor: grab;
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--clr-moss);
}

.toolbox-item:hover {
    background: var(--clr-success-bg);
    border-style: solid;
}

.toolbox-item:active {
    cursor: grabbing;
}

/* Sidebar Tabs */
.sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--clr-parchment);
    background: white;
}

.sidebar-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--clr-ink-light);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.sidebar-tab:hover {
    color: var(--clr-ink);
    background: var(--clr-paper);
}

.sidebar-tab.active {
    color: var(--clr-forest);
    border-bottom-color: var(--clr-forest);
}

.sidebar-tab .count-badge {
    margin-left: var(--space-xs);
}

.sidebar-tab-content {
    display: none;
}

.sidebar-tab-content.active {
    display: block;
}

.toolbox-icon {
    width: 22px;
    height: 22px;
    background: var(--clr-moss);
    color: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

/* Sidebar Tabs */
.sidebar-tabs {
    display: flex;
    background: white;
    border-bottom: 1px solid var(--clr-parchment);
}

.sidebar-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--clr-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
}

.sidebar-tab:hover {
    color: var(--clr-forest);
    background: var(--clr-paper);
}

.sidebar-tab.active {
    color: var(--clr-forest);
    border-bottom-color: var(--clr-moss);
    background: var(--clr-paper);
}

.tab-badge {
    background: var(--clr-moss);
    color: white;
    font-size: 0.6875rem;
    padding: 1px 5px;
    border-radius: 8px;
    font-weight: 500;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    padding: var(--space-md);
}

/* Prevent form inputs from overflowing sidebar */
.sidebar-content .form-input {
    max-width: 100%;
    box-sizing: border-box;
}

.count-badge {
    background: var(--clr-moss);
    color: white;
    font-size: 0.6875rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 500;
}

/* ERD Main Area - contains canvas and notes split */
.erd-main-area {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.erd-main-area.notes-visible .erd-canvas-container {
    flex: 1;
}

.erd-main-area.notes-visible .erd-notes-panel {
    flex: 1;
}

/* ERD Canvas */
.erd-canvas-container {
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 0; /* Allow flex child to shrink */
    overflow: hidden;
    flex: 1; /* Fill remaining space when sidebar collapses */
}

/* Notes Panel - spec builder */
.erd-notes-panel {
    display: flex;
    flex-direction: column;
    background: var(--clr-ivory);
    border-left: 1px solid var(--clr-parchment);
    min-width: 0;
}

.erd-notes-panel.hidden {
    display: none;
}

.notes-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: white;
    border-bottom: 1px solid var(--clr-parchment);
}

.notes-panel-header h3 {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--clr-forest);
}

.notes-panel-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--space-md);
    overflow: hidden;
}

.notes-panel-content .notes-form {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.notes-panel-content .notes-textarea {
    flex: 1;
    min-height: 200px;
    resize: none;
}

/* Wrapper needed to constrain vis.js canvas */
.erd-canvas-wrapper {
    flex: 1;
    position: relative;
    min-height: 0;
    overflow: hidden;
}

.erd-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: white;
    border-bottom: 1px solid var(--clr-parchment);
}

.canvas-info {
    font-size: 0.875rem;
    color: var(--clr-ink-light);
}

.canvas-info strong {
    color: var(--clr-forest);
}

.canvas-controls {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.toolbar-divider {
    width: 1px;
    height: 20px;
    background: var(--clr-parchment);
    margin: 0 var(--space-xs);
}

.empty-canvas-message {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--clr-ink-light);
    font-style: italic;
    font-size: 1rem;
}

#erd-canvas {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    cursor: crosshair;
    overflow: hidden;
}

.erd-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.erd-line-label {
    font-size: 11px;
    fill: #5a6b62;
    font-family: var(--font-body);
}

.erd-entities {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

/* ERD Table Nodes */
.erd-table {
    position: absolute;
    background: white;
    border: 2px solid var(--clr-moss);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 180px;
    max-width: 280px;
    font-size: 0.8125rem;
    cursor: default;
    transition: box-shadow 0.15s, border-color 0.15s;
}

.erd-table:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-forest);
}

.erd-table.dragging {
    opacity: 0.9;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    z-index: 100;
}

.erd-table.root {
    border-color: var(--clr-forest);
    border-width: 3px;
}

.erd-table.root .erd-table-header {
    background: var(--clr-forest);
}

.erd-table-header {
    background: var(--clr-moss);
    color: white;
    padding: 8px 12px;
    font-weight: 600;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.erd-table-header:active {
    cursor: grabbing;
}

.erd-table-name {
    font-family: var(--font-display);
    font-size: 0.9375rem;
}

.erd-root-badge {
    font-size: 0.625rem;
    background: rgba(255,255,255,0.25);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

.erd-table-body {
    max-height: 300px;
    overflow-y: auto;
}

.erd-table-row {
    display: grid;
    grid-template-columns: 36px 1fr auto;
    align-items: center;
    padding: 5px 10px;
    border-bottom: 1px solid var(--clr-parchment);
    font-family: var(--font-body);
    gap: 4px;
}

.erd-table-row:last-child {
    border-bottom: none;
}

.erd-table-row:hover {
    background: var(--clr-paper);
}

.field-icons {
    display: flex;
    gap: 2px;
    font-size: 0.6875rem;
}

.field-icon {
    padding: 1px 3px;
    border-radius: 2px;
    font-weight: 600;
}

.field-icon.pk {
    color: var(--clr-accent);
}

.field-icon.fk {
    background: var(--clr-moss);
    color: white;
    font-size: 0.5625rem;
}

.erd-table-row .field-name {
    font-weight: 500;
    color: var(--clr-ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.erd-table-row .field-type {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    text-align: right;
    white-space: nowrap;
}

.erd-table-empty {
    padding: 12px;
    color: var(--clr-ink-light);
    font-style: italic;
    text-align: center;
}

.canvas-legend {
    display: flex;
    flex-shrink: 0;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-lg);
    padding: var(--space-sm) var(--space-md);
    background: white;
    border-top: 1px solid var(--clr-parchment);
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    border: 2px solid;
}

.legend-dot.root {
    background: var(--clr-moss);
    border-color: var(--clr-forest);
}

.legend-dot.entity {
    background: white;
    border-color: var(--clr-moss);
}

.legend-line {
    width: 20px;
    height: 2px;
    background: var(--clr-sage);
    position: relative;
}

.legend-line::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    border: 4px solid transparent;
    border-left-color: var(--clr-sage);
}

.legend-line-dashed {
    width: 20px;
    height: 2px;
    background: repeating-linear-gradient(
        to right,
        #7c4a6b 0px,
        #7c4a6b 4px,
        transparent 4px,
        transparent 8px
    );
    position: relative;
}

.legend-line-dashed::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    border: 4px solid transparent;
    border-left-color: #7c4a6b;
}

.legend-hint {
    margin-left: auto;
    font-style: italic;
    opacity: 0.7;
}

/* Context Menu for hiding entities */
.context-menu {
    position: fixed;
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 120px;
    overflow: hidden;
}

.context-menu.hidden {
    display: none;
}

.context-menu-header {
    padding: var(--space-sm) var(--space-md);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--clr-forest);
    background: var(--clr-paper);
    border-bottom: 1px solid var(--clr-parchment);
}

.context-menu-item {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--clr-ink);
    transition: background var(--transition-fast);
}

.context-menu-item:hover {
    background: var(--clr-paper);
}

/* Hidden count badge */
.hidden-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--clr-warning-bg);
    color: var(--clr-warning);
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 500;
}

.hidden-badge.hidden {
    display: none;
}

/* ERD Editor Panel - positioned as overlay */
.erd-editor-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 380px;
    height: 100%;
    max-height: calc(100vh - 60px);
    background: white;
    border-left: 1px solid var(--clr-parchment);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition-med);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 100;
    overflow: hidden;
}

.erd-editor-panel.open {
    transform: translateX(0);
}

.editor-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--clr-forest);
    color: white;
}

.editor-panel-header h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    margin: 0;
}

.btn-close {
    background: transparent;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    line-height: 1;
    padding: 0;
}

.btn-close:hover {
    opacity: 1;
}

.editor-panel-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-lg);
    max-width: 100%;
    box-sizing: border-box;
}

.editor-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--clr-ink-light);
    font-style: italic;
}

/* Preview Overlay */
.preview-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 58, 47, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.preview-overlay.hidden {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.preview-modal {
    background: var(--clr-forest);
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 1000px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preview-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.preview-modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: white;
    margin: 0;
}

.preview-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.preview-actions .btn-close {
    color: white;
}

.preview-modal-content {
    flex: 1;
    overflow: auto;
    padding: var(--space-lg);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 58, 47, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
}

.modal-overlay.hidden {
    display: none;
}

.modal-dialog {
    background: var(--clr-forest);
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-dialog.modal-lg {
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--clr-ivory);
    margin: 0;
}

.modal-body {
    padding: var(--space-lg);
    color: var(--clr-ivory);
}

.modal-body .form-label {
    color: var(--clr-ivory);
}

.modal-body .form-input,
.modal-body .form-textarea,
.modal-body .form-select {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--clr-ivory);
}

.modal-body .form-input:focus,
.modal-body .form-textarea:focus,
.modal-body .form-select:focus {
    border-color: var(--clr-teal);
    background: rgba(0, 0, 0, 0.3);
}

.modal-body .form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.modal-body .form-help {
    color: rgba(255, 255, 255, 0.6);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
}

/* Sidebar collapsible sections */
details.sidebar-section {
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    margin-top: var(--space-md);
    overflow: hidden;
}

details.sidebar-section summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--clr-parchment);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    list-style: none;
}

details.sidebar-section summary::-webkit-details-marker {
    display: none;
}

details.sidebar-section summary::before {
    content: "▶";
    font-size: 0.625rem;
    margin-right: var(--space-sm);
    transition: transform 0.2s;
}

details.sidebar-section[open] summary::before {
    transform: rotate(90deg);
}

details.sidebar-section summary:hover {
    background: #ddd9d2;
}

.sidebar-section-body {
    padding: var(--space-sm);
}

.sidebar-count {
    margin-left: auto;
    background: var(--clr-moss);
    color: white;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 10px;
}

/* Entity list in sidebar */
.entity-list-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.entity-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm);
    background: var(--clr-paper);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.entity-list-item:hover {
    background: var(--clr-parchment);
}

.entity-list-item.active {
    background: var(--clr-moss);
    color: white;
}

.entity-list-item.active .entity-field-count {
    color: rgba(255, 255, 255, 0.7);
}

.entity-list-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.entity-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.entity-field-count {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

.entity-badge {
    font-size: 0.625rem;
    padding: 1px 4px;
    border-radius: 3px;
    text-transform: uppercase;
    font-weight: 600;
}

.root-badge {
    background: var(--clr-accent);
    color: white;
}

/* Add entity/field forms */
.add-entity-form,
.add-field-form,
.add-rule-form {
    margin-top: var(--space-sm);
}

.add-form-row {
    display: flex;
    gap: var(--space-xs);
}

.add-form-row .form-input {
    flex: 1;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
}

/* Entity editor */
.entity-editor {
    max-width: 900px;
}

.entity-editor .card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.ontology-badge {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-sm);
    color: var(--clr-ink-light);
}

.entity-meta-form .form-row {
    display: flex;
    gap: var(--space-lg);
}

.entity-meta-form .form-row .form-group {
    flex: 1;
}

.form-actions.inline {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: none;
}

/* Compact forms for sidebar */
.compact-form .form-group {
    margin-bottom: var(--space-sm);
}

.compact-form .form-label {
    font-size: 0.75rem;
    margin-bottom: 2px;
}

.compact-form .form-input {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.8125rem;
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

/* Stack form rows in narrow sidebar */
.tab-panel .form-row-2,
.erd-sidebar .form-row-2 {
    grid-template-columns: 1fr;
}

/* Prevent overflow in sidebar */
.erd-sidebar .form-group {
    display: block;
    margin-right: 0;
    width: 100%;
}

.erd-sidebar .form-input,
.tab-panel .form-input {
    max-width: 100%;
    width: 100%;
}

.erd-sidebar .form-label,
.tab-panel .form-label {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.btn-full {
    width: 100%;
    margin-top: var(--space-sm);
}

/* Fields table */
.fields-table .field-name {
    font-weight: 500;
    color: var(--clr-ink);
}

.fields-table .field-codename {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    margin-left: var(--space-xs);
}

.field-type-badge {
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-transform: lowercase;
}

.type-string { background: #e3f2fd; color: #1565c0; }
.type-integer { background: #e8f5e9; color: #2e7d32; }
.type-float { background: #fff3e0; color: #ef6c00; }
.type-boolean { background: #fce4ec; color: #c2185b; }
.type-date { background: #f3e5f5; color: #7b1fa2; }
.type-datetime { background: #f3e5f5; color: #7b1fa2; }
.type-uri { background: #e0f2f1; color: #00695c; }
.type-ontology_term { background: #fff8e1; color: #f57f17; }
.type-list { background: #e8eaf6; color: #3f51b5; }
.type-entity { background: #ffebee; color: #c62828; }

.field-items {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
    margin-left: 4px;
}

.required-badge {
    color: var(--clr-success);
    font-size: 0.8125rem;
    font-weight: 500;
}

.optional-badge {
    color: var(--clr-ink-light);
    font-size: 0.8125rem;
}

.field-desc {
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
    max-width: 300px;
}

.field-row.editing {
    background: var(--clr-success-bg);
}

.field-editor-row td {
    padding: 0 !important;
}

.field-form-cell {
    background: var(--clr-paper);
    padding: var(--space-lg) !important;
}

.field-form-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.field-form-grid .form-group {
    margin: 0;
    min-width: auto;
}

.field-form-grid .span-2 {
    grid-column: span 2;
}

.empty-fields {
    padding: var(--space-lg);
    text-align: center;
    color: var(--clr-ink-light);
    background: var(--clr-paper);
    border-radius: var(--radius-md);
}

/* ============================================
   PANEL ENTITY EDITOR
   ============================================ */

.panel-entity-editor {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 100%;
    overflow: hidden;
}

.panel-section {
    border-bottom: 1px solid var(--clr-parchment);
    padding-bottom: var(--space-md);
    max-width: 100%;
    overflow: hidden;
}

.panel-section:last-child {
    border-bottom: none;
}

.panel-section-title {
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--clr-forest);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 var(--space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.panel-form .form-group {
    margin-bottom: var(--space-sm);
}

.panel-form .form-input {
    width: 100%;
    max-width: none;
}

/* Fields list in panel */
.fields-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
    max-width: 100%;
    overflow: hidden;
}

.field-card {
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.field-card:hover {
    border-color: var(--clr-sage);
}

.field-card.editing {
    border-color: var(--clr-moss);
    background: var(--clr-success-bg);
}

.field-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm);
    cursor: pointer;
}

.field-card-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.field-card-name {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--clr-ink);
}

.field-required-dot {
    width: 6px;
    height: 6px;
    background: var(--clr-error);
    border-radius: 50%;
}

.field-card-meta {
    padding: 0 var(--space-sm) var(--space-sm);
    font-size: 0.75rem;
    color: var(--clr-moss);
}

.field-card-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}

.btn-icon.move {
    font-size: 0.625rem;
    padding: 2px 4px;
    color: var(--clr-moss);
}

.btn-icon.move:hover:not(:disabled) {
    color: var(--clr-ink);
    background: var(--clr-mist);
}

.btn-icon.move:disabled,
.btn-icon.move.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Add field inline form */
.add-field-inline {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    max-width: 100%;
}

.add-field-inline .form-input {
    flex: 1;
    min-width: 80px;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.8125rem;
    box-sizing: border-box;
}

.add-field-inline select {
    width: 100px;
    flex-shrink: 0;
}

/* Relationships list */
.relationships-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.relationship-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--clr-paper);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
}

.relationship-field {
    font-weight: 500;
    color: var(--clr-ink);
}

.relationship-arrow {
    color: var(--clr-ink-light);
}

.relationship-target {
    color: var(--clr-moss);
    font-weight: 500;
}

.relationship-type {
    margin-left: auto;
    font-size: 0.6875rem;
    padding: 2px 6px;
    background: var(--clr-parchment);
    border-radius: var(--radius-sm);
    color: var(--clr-ink-light);
}

/* Danger section */
.panel-danger {
    border-bottom: none;
    padding-top: var(--space-md);
}

/* Empty state */
.empty-state {
    padding: var(--space-md);
    text-align: center;
    color: var(--clr-ink-light);
    font-size: 0.875rem;
    font-style: italic;
}

/* Field edit form */
.field-edit-form {
    padding: var(--space-sm);
    background: white;
    border: none;
    margin: 0;
    width: 100%;
    box-sizing: border-box;
}

.field-edit-form form {
    width: 100%;
}

.field-edit-form .form-input,
.field-edit-form input,
.field-edit-form select,
.field-edit-form textarea {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.field-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.field-form-row .form-group {
    min-width: 0;
    margin: 0;
}

.field-form-row .form-group-checkbox {
    flex: 0;
    display: flex;
    align-items: flex-end;
    padding-bottom: var(--space-sm);
}

.field-advanced {
    margin: var(--space-sm) 0;
}

.field-advanced summary {
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
    padding: var(--space-xs) 0;
}

.field-advanced summary:hover {
    color: var(--clr-moss);
}

.field-advanced-content {
    padding-top: var(--space-sm);
}

.field-form-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--clr-parchment);
}

/* Validation rules list */
.rules-list-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.rule-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm);
    background: var(--clr-paper);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.rule-list-item:hover {
    background: var(--clr-parchment);
}

.rule-list-item.active {
    background: var(--clr-moss);
    color: white;
}

.rule-list-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rule-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.rule-applies {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

.rule-list-item.active .rule-applies {
    color: rgba(255, 255, 255, 0.7);
}

.rule-form {
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-md);
}

.rule-form-modal {
    padding: 0;
    background: transparent;
}

.rule-form-modal .form-actions {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--clr-parchment);
}

.rule-form-header {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--clr-parchment);
}

.rule-form-header h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--clr-forest);
    margin: 0;
}

.rule-form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.rule-form-grid .form-group {
    margin: 0;
    min-width: auto;
}

.rule-form-grid .span-2 {
    grid-column: span 2;
}

/* YAML preview */
.yaml-preview-container {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.yaml-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.yaml-preview-header h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin: 0;
    color: var(--clr-ivory);
}

.yaml-preview-content {
    flex: 1;
    overflow: auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.yaml-code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.8125rem;
    line-height: 1.5;
    white-space: pre;
    color: var(--clr-ivory);
    margin: 0;
}

.yaml-preview-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.yaml-preview-actions .btn,
.yaml-preview-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    font-size: 0.8125rem;
    line-height: 1;
    height: 28px;
}

.yaml-content {
    flex: 1;
    overflow: auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
}

#yaml-preview-view {
    padding: var(--space-md);
}

#yaml-edit-view {
    display: flex;
    flex-direction: column;
    padding: 0;
}

.yaml-editor {
    flex: 1;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.8125rem;
    line-height: 1.5;
    background: transparent;
    color: var(--clr-ivory);
    border: none;
    padding: var(--space-md);
    resize: none;
    min-height: 400px;
}

.yaml-editor:focus {
    outline: none;
}

.yaml-editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.yaml-editor-buttons {
    display: flex;
    gap: var(--space-sm);
}

.status-text {
    font-size: 0.8125rem;
    color: var(--clr-ivory);
    opacity: 0.7;
}

.status-success {
    color: var(--clr-teal);
    opacity: 1;
}

.status-error {
    color: #e57373;
    opacity: 1;
}

.yaml-preview-container.editing .yaml-preview-header {
    border-bottom: 1px solid var(--clr-teal);
}

.btn-ghost {
    background: transparent;
    color: var(--clr-ivory);
    border: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.btn-ghost:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

.preview-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

/* Editor welcome */
.editor-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    text-align: center;
    color: var(--clr-ink-light);
}

.editor-welcome h2 {
    font-family: var(--font-display);
    color: var(--clr-forest);
    margin-bottom: var(--space-sm);
}

/* Metadata form */
.metadata-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.metadata-form .form-group {
    margin: 0;
    display: block;
}

.metadata-form .form-group.compact {
    margin-bottom: var(--space-xs);
}

.metadata-form .form-group.full-width {
    margin-bottom: var(--space-sm);
}

.metadata-form .form-input {
    width: 100%;
    max-width: none;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
}

.metadata-form .form-label {
    font-size: 0.75rem;
    margin-bottom: 2px;
}

.metadata-form .form-textarea {
    min-height: 60px;
}

.metadata-form .form-actions.compact {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
}

/* Success/error feedback */
.form-success {
    padding: var(--space-xs) var(--space-sm);
    background: var(--clr-success-bg);
    color: var(--clr-success);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    margin-bottom: var(--space-sm);
}

.form-error {
    padding: var(--space-xs) var(--space-sm);
    background: var(--clr-error-bg);
    color: var(--clr-error);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    margin-bottom: var(--space-sm);
}

.empty-list {
    padding: var(--space-md);
    text-align: center;
    color: var(--clr-ink-light);
    font-size: 0.875rem;
}

/* Unsaved indicator */
.unsaved-indicator {
    color: var(--clr-accent);
    font-size: 1.5rem;
    margin-left: var(--space-xs);
}

/* Template badge */
.template-badge {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--clr-ivory);
}

/* Responsive - ERD */
@media (max-width: 1400px) {
    .erd-layout {
        grid-template-columns: 240px 1fr 340px;
    }
}

@media (max-width: 1100px) {
    .erd-layout {
        grid-template-columns: 220px 1fr;
    }

    .erd-editor-panel {
        position: fixed;
        right: 0;
        top: 60px;
        bottom: 0;
        width: 380px;
        z-index: 100;
        box-shadow: var(--shadow-lg);
    }
}

@media (max-width: 768px) {
    .erd-layout {
        grid-template-columns: 1fr;
    }

    .erd-sidebar {
        position: fixed;
        left: -280px;
        top: 60px;
        bottom: 0;
        width: 280px;
        z-index: 99;
        transition: left var(--transition-med);
        box-shadow: var(--shadow-lg);
    }

    .erd-sidebar.open {
        left: 0;
    }

    .erd-editor-panel {
        width: 100%;
    }

    .start-options {
        grid-template-columns: 1fr;
    }
}

/* Wide screens - larger sidebar and panel */
@media (min-width: 1800px) {
    .erd-layout {
        grid-template-columns: 350px 1fr;
    }
    .erd-editor-panel {
        width: 450px;
    }
}

@media (min-width: 2200px) {
    .erd-layout {
        grid-template-columns: 400px 1fr;
    }
    .erd-editor-panel {
        width: 500px;
    }
}

/* Responsive - Legacy */
@media (max-width: 1200px) {
    .spec-builder-layout {
        grid-template-columns: 250px 1fr 280px;
    }
}

@media (max-width: 900px) {
    .spec-builder-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .spec-builder-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--clr-parchment);
        max-height: 300px;
    }

    .spec-builder-preview {
        max-height: 300px;
    }

    .field-form-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .rule-form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   MERGE / COMPARISON
   ============================================ */

.profile-selector {
    display: flex;
    gap: var(--space-xs);
}

.profile-selector .form-select {
    flex: 1;
    min-width: 0;  /* Allow shrinking */
}

.form-select {
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-sm);
    background: white;
    color: var(--clr-ink);
    font-size: 0.8125rem;
    font-family: var(--font-body);
    max-width: 100%;
    box-sizing: border-box;
}

.form-select:focus {
    outline: none;
    border-color: var(--clr-moss);
}

/* Stack profile selectors in narrow sidebar */
.erd-sidebar .profile-selector {
    flex-direction: column;
    gap: var(--space-xs);
}

.erd-sidebar .profile-selector .form-select {
    width: 100%;
}

.stats-table {
    width: 100%;
    font-size: 0.875rem;
}

.stats-table td {
    padding: var(--space-xs) 0;
}

.stats-table td:last-child {
    text-align: right;
    font-weight: 500;
}

.diff-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
}

.diff-badge.unchanged { background: #e0e0e0; color: #333; }
.diff-badge.added { background: #c8e6c9; color: #1b5e20; }
.diff-badge.removed { background: #ffcdd2; color: #b71c1c; }
.diff-badge.modified { background: #fff3e0; color: #e65100; }
.diff-badge.conflict { background: #ffebee; color: #b71c1c; }

/* Filter toggles */
.filter-toggles {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-top: var(--space-xs);
}

.filter-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    cursor: pointer;
    font-size: 0.8125rem;
}

.filter-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--clr-moss);
}

.filter-label {
    color: var(--clr-ink);
}

.profile-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.profile-tag {
    background: var(--clr-moss);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
}

.profile-tag.sm {
    padding: 1px 6px;
    font-size: 0.625rem;
}

.field-diff-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-height: 400px;
    overflow-y: auto;
}

.field-diff-item {
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    background: var(--clr-paper);
    border-left: 3px solid #9e9e9e;
}

.field-diff-item.added { border-left-color: #4caf50; background: #f1f8e9; }
.field-diff-item.removed { border-left-color: #f44336; background: #ffebee; }
.field-diff-item.modified { border-left-color: #ff9800; background: #fff8e1; }
.field-diff-item.conflict { border-left-color: #d32f2f; background: #ffebee; }

.field-diff-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.field-diff-header span { font-weight: 600; }
.field-diff-header code { color: var(--clr-ink-light); }
.field-diff-profiles { margin-top: var(--space-xs); }
.field-diff-changes { margin-top: var(--space-xs); font-size: 0.75rem; color: #e65100; font-style: italic; }

/* Legend dots for merge comparison */
.legend-dot.unchanged { background: #fff; border-color: #9e9e9e; }
.legend-dot.added { background: #e8f5e9; border-color: #4caf50; }
.legend-dot.removed { background: #ffcdd2; border-color: #f44336; }
.legend-dot.modified { background: #fff8e1; border-color: #ff9800; }
.legend-dot.conflict { background: #ffebee; border-color: #d32f2f; }

/* ============================================
   PROFILE SELECT
   ============================================ */

.profile-option-container {
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.profile-option-header {
    margin-bottom: var(--space-md);
}

.profile-option-header h3 {
    margin: 0 0 var(--space-xs) 0;
    font-family: var(--font-display);
    color: var(--clr-forest);
}

.profile-option-header p {
    margin: 0;
    color: var(--clr-ink-light);
    font-size: 0.9375rem;
}

.profile-versions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.profile-version-row {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

/* ============================================
   NOTES
   ============================================ */

.notes-main {
    padding: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.notes-container {
    background: var(--clr-ivory);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.notes-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--clr-parchment);
}

.notes-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--clr-forest);
    margin: 0 0 var(--space-xs) 0;
}

.notes-subtitle {
    color: var(--clr-ink-light);
    font-size: 0.9375rem;
    margin: 0;
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.note-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--clr-paper);
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-parchment);
    transition: var(--transition-fast);
}

.note-item:hover {
    border-color: var(--clr-sage);
    box-shadow: var(--shadow-sm);
}

.note-link {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.note-name {
    font-weight: 500;
    color: var(--clr-forest);
}

.note-meta {
    font-size: 0.8125rem;
    color: var(--clr-ink-light);
}

.note-delete {
    opacity: 0;
    transition: var(--transition-fast);
}

.note-item:hover .note-delete {
    opacity: 1;
}

.notes-empty {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--clr-ink-light);
}

.notes-empty p {
    margin-bottom: var(--space-md);
}

/* Notes Editor */
.notes-editor-main {
    height: calc(100vh - 60px);
    padding: var(--space-md);
}

.notes-editor-form {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--clr-ivory);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.notes-editor-toolbar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--clr-paper);
    border-bottom: 1px solid var(--clr-parchment);
}

.notes-name-input {
    flex: 1;
    max-width: 400px;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--clr-forest);
    background: var(--clr-ivory);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.notes-name-input:focus {
    outline: none;
    border-color: var(--clr-moss);
    box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.15);
}

.notes-editor-textarea {
    flex: 1;
    padding: var(--space-lg);
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--clr-ink);
    background: var(--clr-ivory);
    border: none;
    resize: none;
}

.notes-editor-textarea:focus {
    outline: none;
}

.notes-editor-textarea::placeholder {
    color: var(--clr-ink-light);
    opacity: 0.6;
}

/* Notes textarea for spec builder sidebar */
.notes-textarea {
    width: 100%;
    min-height: 300px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    padding: var(--space-md);
    resize: vertical;
}

.notes-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    height: 100%;
}

.notes-form .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.notes-form .form-label {
    margin-bottom: var(--space-sm);
}

/* Sidebar notes form */
.sidebar-notes-form {
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar-notes-textarea {
    flex: 1;
    min-height: 400px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* Notes container and toolbar */
.notes-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: var(--space-sm);
}

.notes-toolbar {
    display: flex;
    gap: var(--space-xs);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--clr-parchment);
}

.notes-mode-btn {
    flex: 1;
    text-align: center;
}

.notes-mode-btn.active {
    background: var(--clr-forest);
    color: white;
    border-color: var(--clr-forest);
}

.notes-preview {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    background: var(--clr-ivory);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
}

.notes-preview-content {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--clr-ink);
}

.notes-preview-content h1,
.notes-preview-content h2,
.notes-preview-content h3 {
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
    color: var(--clr-forest);
}

.notes-preview-content h1 { font-size: 1.25rem; }
.notes-preview-content h2 { font-size: 1.125rem; }
.notes-preview-content h3 { font-size: 1rem; }

.notes-preview-content p {
    margin-bottom: var(--space-sm);
}

.notes-preview-content ul {
    margin: var(--space-sm) 0;
    padding-left: var(--space-lg);
}

.notes-preview-content li {
    margin-bottom: var(--space-xs);
}

.notes-preview-content code {
    background: var(--clr-parchment);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.8125rem;
}

.notes-preview-content pre {
    background: var(--clr-forest);
    color: var(--clr-ivory);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-sm) 0;
}

.notes-preview-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.notes-preview-content a {
    color: var(--clr-moss);
}

.notes-preview-content strong {
    font-weight: 600;
}

/* ============================================
   MCP Server Status Indicator
   ============================================ */

.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--space-xs);
    vertical-align: middle;
    transition: background-color 0.2s ease;
}

.status-indicator.status-off {
    background-color: var(--clr-ink-light);
    box-shadow: 0 0 0 2px rgba(90, 107, 98, 0.2);
}

.status-indicator.status-on {
    background-color: var(--clr-success);
    box-shadow: 0 0 4px rgba(61, 122, 90, 0.6);
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0%, 100% {
        box-shadow: 0 0 4px rgba(61, 122, 90, 0.6);
    }
    50% {
        box-shadow: 0 0 8px rgba(61, 122, 90, 0.9);
    }
}

#mcp-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* Stronger green indicator for MCP running state */
.status-indicator.status-on {
    background-color: #22c55e;
    box-shadow: 0 0 8px 2px rgba(34, 197, 94, 0.8);
    animation: pulse-green-strong 1.5s infinite;
}

@keyframes pulse-green-strong {
    0%, 100% {
        box-shadow: 0 0 8px 2px rgba(34, 197, 94, 0.8);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 12px 4px rgba(34, 197, 94, 1);
        transform: scale(1.1);
    }
}

/* ============================================
   DATASET MANAGEMENT
   ============================================ */

.dataset-dropdown {
    position: relative;
}

.dataset-menu {
    position: absolute;
    top: 100%;
    right: 0;
    width: 280px;
    background: var(--clr-paper);
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    margin-top: var(--space-xs);
}

.dataset-menu.hidden {
    display: none;
}

.dataset-menu-section {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--clr-parchment);
}

.dataset-menu-section:last-child {
    border-bottom: none;
}

.dataset-menu-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--clr-ink-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.dataset-save-form {
    display: flex;
    gap: var(--space-xs);
}

.dataset-save-form input {
    flex: 1;
    min-width: 0;
}

.dataset-list {
    max-height: 200px;
    overflow-y: auto;
}

.dataset-list-empty {
    font-size: 0.85rem;
    color: var(--clr-ink-light);
    font-style: italic;
    padding: var(--space-sm);
    text-align: center;
}

.dataset-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.dataset-item:hover {
    background: var(--clr-parchment);
}

.dataset-item.active {
    background: var(--clr-sage);
    color: white;
}

.dataset-item.active .dataset-item-meta {
    color: rgba(255, 255, 255, 0.8);
}

.dataset-item-main {
    flex: 1;
    cursor: pointer;
    min-width: 0;
}

.dataset-item-name {
    font-weight: 500;
    font-size: 0.9rem;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dataset-item-meta {
    font-size: 0.75rem;
    color: var(--clr-ink-light);
}

.btn-dataset-delete {
    background: transparent;
    border: none;
    color: var(--clr-ink-light);
    font-size: 1rem;
    cursor: pointer;
    padding: 0 var(--space-xs);
    opacity: 0.5;
    transition: var(--transition-fast);
}

.btn-dataset-delete:hover {
    color: var(--clr-error);
    opacity: 1;
}

.dataset-item.active .btn-dataset-delete {
    color: rgba(255, 255, 255, 0.7);
}

.dataset-item.active .btn-dataset-delete:hover {
    color: white;
}

/* Dataset name input on profile select */
.dataset-name-input {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--clr-parchment);
}

.dataset-name-input .form-input {
    max-width: none;
    width: 100%;
}

.dataset-name-input .form-hint {
    font-size: 0.8rem;
    color: var(--clr-ink-light);
    margin-top: var(--space-xs);
}

/* Datasets Page */
.datasets-page {
    padding: var(--space-xl) var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.datasets-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--clr-parchment);
}

.datasets-title h2 {
    margin: 0 0 var(--space-xs) 0;
    font-size: 1.75rem;
    color: var(--clr-ink);
    font-weight: 600;
}

.datasets-subtitle {
    margin: 0;
    font-size: 0.95rem;
    color: var(--clr-ink-light);
}

.datasets-actions {
    display: flex;
    gap: var(--space-sm);
}

.datasets-filter {
    margin-bottom: var(--space-md);
}

.datasets-filter-input {
    width: 100%;
    max-width: 400px;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.95rem;
}

.datasets-filter-empty {
    padding: var(--space-xl);
    text-align: center;
    color: var(--clr-ink-light);
    font-style: italic;
}

.datasets-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.dataset-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: white;
    border: 1px solid var(--clr-parchment);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    text-decoration: none;
    color: inherit;
    transition: all 0.15s ease;
    position: relative;
}

.dataset-card:hover {
    border-color: var(--clr-sage);
    background: var(--clr-paper);
}

.dataset-card.active {
    border-color: var(--clr-sage);
    border-left: 3px solid var(--clr-sage);
}

.dataset-card-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-paper);
    border-radius: var(--radius-sm);
    color: var(--clr-sage);
}

.dataset-card-content {
    flex: 1;
    min-width: 0;
}

.dataset-card-name {
    margin: 0 0 var(--space-xs) 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--clr-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dataset-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--clr-ink-light);
}

.dataset-card-dot {
    width: 3px;
    height: 3px;
    background: var(--clr-ink-lighter);
    border-radius: 50%;
}

.dataset-card-modified {
    font-size: 0.8rem;
    color: var(--clr-ink-lighter);
    margin-top: var(--space-xs);
}

.dataset-card-actions {
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.dataset-card:hover .dataset-card-actions {
    opacity: 1;
}

.dataset-card-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: var(--clr-sage);
    color: white;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--clr-ink-light);
    transition: all 0.15s ease;
}

.btn-icon:hover {
    background: var(--clr-parchment);
    color: var(--clr-ink);
}

.btn-icon-danger:hover {
    background: #fee2e2;
    color: #dc2626;
}

.datasets-empty {
    text-align: center;
    padding: var(--space-xxl) var(--space-lg);
    color: var(--clr-ink-light);
}

.datasets-empty-icon {
    margin-bottom: var(--space-lg);
    color: var(--clr-parchment);
}

.datasets-empty h3 {
    margin: 0 0 var(--space-sm) 0;
    font-size: 1.25rem;
    color: var(--clr-ink);
    font-weight: 600;
}

.datasets-empty p {
    margin: 0;
    font-size: 0.95rem;
}

/* Entity Overview (Dataset Edit Page) */
.entity-overview {
    padding: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.entity-overview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--clr-parchment);
}

.entity-overview-title h2 {
    margin: 0 0 var(--space-xs) 0;
    font-size: 1.5rem;
    color: var(--clr-ink);
    font-weight: 600;
}

.entity-overview-meta {
    font-size: 0.85rem;
    color: var(--clr-ink-light);
}

.entity-overview-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.welcome-actions {
    margin-top: var(--space-lg);
}