/* Project OmniScholar — Premier Scientific Research Studio Design System
   Academic Glassmorphic Architecture with Dual Dark/Light Modes */

:root {
    /* Color Palette - Light Theme Default Variables */
    --bg-page: #f8fafc;
    --bg-surface: rgba(255, 255, 255, 0.82);
    --bg-surface-solid: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-secondary: #f1f5f9;
    --bg-hover: rgba(0, 0, 0, 0.04);
    --bg-code: #0f172a;

    --border-color: rgba(15, 23, 42, 0.08);
    --border-subtle: #e2e8f0;
    --border-hairline: #f1f5f9;
    --border-glass: rgba(255, 255, 255, 0.6);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;

    --accent-blue: #0284c7;
    --accent-blue-hover: #0369a1;
    --accent-blue-active: #075985;
    --accent-blue-subtle: rgba(2, 132, 199, 0.08);
    --accent-blue-border: rgba(2, 132, 199, 0.25);

    --accent-indigo: #6366f1;
    --accent-indigo-subtle: rgba(99, 102, 241, 0.1);

    --success: #10b981;
    --success-bg: #ecfdf5;
    --success-border: #a7f3d0;
    --success-text: #047857;

    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --warning-border: #fde68a;

    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --danger-border: #fecaca;

    --radius-pill: 9999px;
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font-system: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: 'Newsreader', Cambria, Georgia, serif;
    --font-mono: 'Fira Code', ui-monospace, Menlo, Monaco, Consolas, monospace;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.09);
    --shadow-glow: 0 0 24px rgba(2, 132, 199, 0.18);

    --glass-blur: blur(20px);
    --glass-blur-sm: blur(12px);
    --sidebar-width: 270px;
}

/* Dark Mode Overrides */
[data-theme="dark"] {
    --bg-page: #0b0f19;
    --bg-surface: rgba(17, 24, 39, 0.78);
    --bg-surface-solid: #111827;
    --bg-card: rgba(17, 24, 39, 0.85);
    --bg-card-secondary: #1a2234;
    --bg-hover: rgba(255, 255, 255, 0.05);
    --bg-code: #070b12;

    --border-color: rgba(255, 255, 255, 0.09);
    --border-subtle: #1f293d;
    --border-hairline: #162032;
    --border-glass: rgba(255, 255, 255, 0.12);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --text-inverse: #0b0f19;

    --accent-blue: #38bdf8;
    --accent-blue-hover: #7dd3fc;
    --accent-blue-active: #0284c7;
    --accent-blue-subtle: rgba(56, 189, 248, 0.12);
    --accent-blue-border: rgba(56, 189, 248, 0.35);

    --accent-indigo: #818cf8;
    --accent-indigo-subtle: rgba(129, 140, 248, 0.15);

    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --success-border: rgba(52, 211, 153, 0.3);
    --success-text: #6ee7b7;

    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.12);
    --warning-border: rgba(251, 191, 36, 0.3);

    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --danger-border: rgba(248, 113, 113, 0.3);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 28px rgba(56, 189, 248, 0.22);
}

/* Global Reset & Base Styling */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font-system);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-subtle);
    border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* 1. Global Navigation Bar */
.app-header {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 60px;
    transition: all 0.2s ease;
}

.header-inner {
    max-width: 1540px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-indigo) 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.3);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    line-height: 1.15;
}

.logo-subtitle {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
}

.badge-version {
    font-size: 10px;
    font-weight: 600;
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--accent-blue-border);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--text-secondary);
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success);
    animation: pulseGlow 2.5s infinite;
}

@keyframes pulseGlow {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.65;
        transform: scale(0.9);
    }
}

.badge-integrity {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.badge-integrity:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-toggle-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: rotate(15deg);
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: inline-flex;
}

[data-theme="dark"] .sun-icon {
    display: inline-flex;
    color: #fbbf24;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

.btn-export-quick {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    gap: 6px;
}

.btn-export-quick:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* 2. Main Studio Layout */
.studio-layout {
    display: flex;
    max-width: 1540px;
    margin: 0 auto;
    min-height: calc(100vh - 60px);
}

/* Sidebar Navigation */
.studio-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    border-right: 1px solid var(--border-color);
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 24px 14px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
}

.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sidebar-category-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    padding: 0 12px;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.18s ease;
    width: 100%;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    font-weight: 600;
    border: 1px solid var(--accent-blue-border);
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-label {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-badge {
    font-size: 11px;
    font-weight: 600;
    background: var(--bg-card-secondary);
    color: var(--text-secondary);
    padding: 1px 7px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
}

.nav-item.active .nav-badge {
    background: var(--accent-blue);
    color: #ffffff;
    border-color: var(--accent-blue);
}

.nav-tag {
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-tag.new {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.nav-tag.audit {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-indigo);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.nav-tag.ai {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.sidebar-footer-card {
    margin-top: auto;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-card-header {
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-shield-icon {
    font-size: 14px;
}

.footer-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-card-text {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.footer-version-tag {
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* 3. Central Studio Workspace */
.studio-main {
    flex: 1;
    padding: 28px 36px 80px;
    min-width: 0;
    /* Prevents overflow issues */
}

/* Research Inception Hub: 3 Scholar Doors */
.inception-hub-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 24px;
    margin-bottom: 28px;
    transition: all 0.2s ease;
}

.inception-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.inception-tab-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-input, rgba(255, 255, 255, 0.05));
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md, 10px);
    padding: 14px 18px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.inception-tab-btn:hover {
    border-color: var(--accent-color, #2563eb);
    background: rgba(37, 99, 235, 0.05);
}

.inception-tab-btn.active {
    border-color: var(--accent-color, #2563eb);
    background: rgba(37, 99, 235, 0.12);
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.2);
}

.inception-tab-btn .tab-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.inception-tab-btn .tab-btn-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.inception-tab-btn .tab-main-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-main, #0f172a);
}

.inception-tab-btn .tab-sub-title {
    font-size: 0.74rem;
    color: var(--text-muted, #64748b);
}

/* Panel 1: Topic Inception Wizard */
.topic-wizard-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.wizard-topic-input {
    width: 100%;
    background: var(--bg-input, rgba(255, 255, 255, 0.7));
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md, 8px);
    padding: 14px 18px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main, #0f172a);
    outline: none;
    transition: all 0.2s ease;
}

.wizard-topic-input:focus {
    border-color: var(--accent-color, #2563eb);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.wizard-row-meta {
    display: grid;
    grid-template-columns: 1.2fr 1.2fr 1fr;
    gap: 16px;
    align-items: flex-end;
}

.wizard-select {
    width: 100%;
    background: var(--bg-input, rgba(255, 255, 255, 0.7));
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md, 8px);
    padding: 10px 14px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-main, #0f172a);
    outline: none;
    cursor: pointer;
}

.btn-generate-architecture {
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    font-size: 0.88rem;
    font-weight: 700;
}

/* Wizard Results Container */
.wizard-results-card {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.wizard-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.architecture-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    gap: 16px;
}

.arch-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 10px);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.arch-box-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-main, #0f172a);
}

.arch-text-content {
    font-size: 0.83rem;
    line-height: 1.55;
    color: var(--text-muted, #64748b);
}

.arch-hypo-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.arch-hypo-item {
    font-size: 0.8rem;
    line-height: 1.45;
    background: rgba(37, 99, 235, 0.06);
    border-left: 3px solid var(--accent-color, #2563eb);
    padding: 8px 12px;
    border-radius: 4px;
    color: var(--text-main, #0f172a);
}

.arch-survey-scroll {
    max-height: 190px;
    overflow-y: auto;
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 6px;
}

.arch-survey-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 10px;
    border-radius: 6px;
    line-height: 1.4;
}

.btn-success {
    background: #059669;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius-md, 8px);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-success:hover {
    background: #047857;
    box-shadow: 0 0 14px rgba(5, 150, 105, 0.4);
}

/* Door 3: Qualitative Panel */
.qualitative-hub-content {
    padding: 16px 0;
}

.qualitative-steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 14px;
}

.qual-step-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 10px);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.qual-step-num {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--accent-color, #2563eb);
    letter-spacing: 0.08em;
}

/* Action Surface / Hero Ingestion */
.action-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 24px;
    margin-bottom: 28px;
    transition: all 0.2s ease;
}

.action-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    gap: 20px;
}

.upload-dropzone {
    border: 1.5px dashed var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 22px 28px;
    display: flex;
    align-items: center;
    cursor: pointer;
    background: var(--bg-card-secondary);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.upload-dropzone:hover {
    border-color: var(--accent-blue);
    background: var(--accent-blue-subtle);
    box-shadow: var(--shadow-glow);
}

.drop-content {
    display: flex;
    align-items: center;
    gap: 18px;
    width: 100%;
}

.drop-icon-symbol {
    color: var(--accent-blue);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--accent-blue-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.drop-text-group h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.drop-text-group p {
    font-size: 13px;
    color: var(--text-secondary);
}

.format-tags {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.format-pill {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    background: var(--bg-page);
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
}

.quick-demo-box {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.demo-badge {
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-indigo);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.demo-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.demo-info p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-system);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.16s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
    text-decoration: none;
    outline: none;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
    background-color: var(--accent-blue-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background-color: var(--bg-card-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background-color: var(--accent-blue-subtle);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

/* Active Dataset Metadata Strip */
.dataset-meta-strip {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.meta-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.meta-val.highlight {
    color: var(--accent-blue);
}

.meta-val.mono {
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    background: var(--bg-card-secondary);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-color);
}

.meta-val.mono:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.meta-select {
    background: var(--bg-card-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 13px;
    font-family: var(--font-system);
    outline: none;
    cursor: pointer;
    transition: border-color 0.15s ease;
    max-width: 240px;
}

.meta-select:focus {
    border-color: var(--accent-blue);
}

.meta-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Tab Panels */
.tab-pane {
    display: none;
    animation: fadeIn 0.25s ease-out;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pane-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.pane-header-title h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.pane-header-title p {
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 820px;
}

.search-input {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    padding: 8px 16px;
    font-size: 13px;
    color: var(--text-primary);
    outline: none;
    width: 260px;
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-subtle);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
}

.empty-icon-symbol {
    color: var(--text-tertiary);
    margin-bottom: 14px;
}

.empty-state h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.empty-state p {
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 440px;
    margin: 0 auto;
}

/* 4. Tab 1: Variables Grid & Descriptive Cards */
.variables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 22px;
}

.variable-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.variable-card:hover {
    border-color: var(--accent-blue-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.var-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.var-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.var-type-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    flex-shrink: 0;
}

.var-type-badge.numeric {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue-border);
}

.var-type-badge.categorical {
    background: var(--accent-indigo-subtle);
    color: var(--accent-indigo);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.var-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-hairline);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
}

.var-stats-row strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.var-freq-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin-bottom: 14px;
}

.var-freq-table th,
.var-freq-table td {
    padding: 6px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border-hairline);
}

.var-freq-table th {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.var-chart-preview {
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-hairline);
    cursor: pointer;
    position: relative;
}

.var-chart-preview img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    display: block;
    transition: transform 0.2s ease;
}

.var-chart-preview:hover img {
    transform: scale(1.02);
}

/* 5. Tab 2: Interactive Data Explorer */
.card-box {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
}

.card-box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 12px;
}

.card-box-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.badge-subtle {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
}

.explorer-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.table-tools {
    display: flex;
    align-items: center;
    gap: 12px;
}

.table-search {
    width: 220px;
    padding: 6px 14px;
    font-size: 12px;
}

.page-info {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.pagination-btns {
    display: flex;
    gap: 6px;
}

.data-table-scroll-container {
    max-height: 420px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-surface-solid);
}

.live-data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 12px;
    font-family: var(--font-system);
}

.live-data-table th {
    position: sticky;
    top: 0;
    background: var(--bg-card-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    z-index: 10;
}

.live-data-table th:hover {
    color: var(--accent-blue);
}

.live-data-table td {
    padding: 8px 14px;
    border-bottom: 1px solid var(--border-hairline);
    color: var(--text-secondary);
    white-space: nowrap;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.live-data-table tbody tr:hover td {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.live-data-table td.empty-cell {
    text-align: center;
    padding: 36px 16px;
    color: var(--text-tertiary);
}

/* Column Classifier Grid */
.column-classifier-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}

.classifier-card {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.classifier-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.classifier-col-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.classifier-details {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-secondary);
}

.classifier-progress {
    height: 4px;
    background: var(--border-subtle);
    border-radius: var(--radius-pill);
    overflow: hidden;
}

.classifier-progress-bar {
    height: 100%;
    background: var(--success);
    border-radius: var(--radius-pill);
}

/* Comparison Sandbox Layout */
.comparison-sandbox-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
}

.sandbox-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group .meta-select {
    width: 100%;
    max-width: 100%;
}

.sandbox-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.sandbox-display {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sandbox-stats-card {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    min-height: 120px;
}

.sandbox-placeholder {
    color: var(--text-tertiary);
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
    padding: 24px 12px;
}

.sandbox-canvas-wrapper {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#sandboxChartCanvas {
    max-width: 100%;
    height: auto;
}

.canvas-legend {
    display: flex;
    gap: 16px;
    margin-top: 10px;
    font-size: 11px;
    color: var(--text-secondary);
    flex-wrap: wrap;
    justify-content: center;
}

/* 6. Tab 3: Inferential Layout */
.inferential-layout {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 24px;
}

.section-title-strip {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.section-title-strip h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.section-title-strip .subtext {
    font-size: 11px;
    color: var(--accent-blue);
    cursor: default;
}

.inferential-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.inferential-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.inferential-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 10px;
}

.inferential-header h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.sig-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.03em;
    flex-shrink: 0;
}

.sig-badge.pass {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.sig-badge.null {
    background: var(--bg-card-secondary);
    color: var(--text-tertiary);
    border: 1px solid var(--border-color);
}

.inferential-formula-hint {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--accent-blue);
    margin-top: 8px;
    font-weight: 500;
}

.heatmap-card {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

.heatmap-card img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    transition: transform 0.2s ease;
}

.heatmap-card img:hover {
    transform: scale(1.01);
}

.group-control-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
}

.group-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.badge-cohort {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-blue);
}

/* 7. Tab 4: Bitwise Calculation Ledger */
.ledger-summary-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
}

.ledger-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
}

.ledger-table-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: 24px;
}

.table-responsive {
    overflow-x: auto;
}

.ledger-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.ledger-table th {
    background: var(--bg-card-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ledger-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-hairline);
    color: var(--text-secondary);
}

.ledger-table tr:hover td {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.ledger-btn-inspect {
    background: var(--accent-blue-subtle);
    border: 1px solid var(--accent-blue-border);
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ledger-btn-inspect:hover {
    background: var(--accent-blue);
    color: #ffffff;
}

.audit-explainer-banner {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.explainer-icon {
    font-size: 24px;
}

.explainer-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.explainer-text p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 8. Tab 5: Autonomous Peer Review Council Panel */
.peer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.peer-scorecard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.score-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
}

.score-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.score-val {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin-bottom: 4px;
}

.score-val.accept {
    color: var(--success);
}

.score-val.highlight {
    color: var(--accent-blue);
}

.score-val.safe {
    color: var(--success);
}

.score-subtext {
    font-size: 12px;
    color: var(--text-secondary);
}

.referee-reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.referee-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: all 0.2s ease;
}

.referee-card:hover {
    border-color: var(--border-subtle);
    box-shadow: var(--shadow-md);
}

.referee-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.referee-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    border: 1px solid var(--accent-blue-border);
}

.referee-header h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.referee-role {
    font-size: 11px;
    color: var(--text-secondary);
}

.referee-verdict {
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.referee-verdict.pass {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.referee-verdict.perfect {
    background: var(--accent-indigo-subtle);
    color: var(--accent-indigo);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.referee-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.referee-action-box {
    background: var(--bg-card-secondary);
    border-left: 3px solid var(--accent-blue);
    padding: 10px 14px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 12px;
    color: var(--text-primary);
    margin-top: 6px;
}

/* 9. Tab 6: LaTeX & Typst Tables */
.table-export-actions {
    display: flex;
    gap: 8px;
}

.latex-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.latex-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.latex-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: var(--bg-card-secondary);
    border-bottom: 1px solid var(--border-color);
}

.latex-card-header h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.latex-code-block {
    background: var(--bg-code);
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 18px 20px;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre;
}

/* 10. Tab 7: Living Manuscript Studio */
.manuscript-metrics {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
}

.manuscript-metrics strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.manuscript-metrics .divider {
    color: var(--border-subtle);
}

.manuscript-editor-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.manuscript-editor {
    width: 100%;
    min-height: 480px;
    padding: 24px;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.7;
    border: none;
    outline: none;
    resize: vertical;
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: var(--bg-card-secondary);
    border-top: 1px solid var(--border-color);
}

.editor-footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 11. Tab 8: Cryptographic Passport */
.passport-certificate {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 36px 32px;
    max-width: 820px;
    margin: 0 auto;
}

.passport-seal {
    text-align: center;
    margin-bottom: 28px;
}

.seal-icon-big {
    font-size: 42px;
    margin-bottom: 8px;
}

.seal-title h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.seal-title p {
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

.passport-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.pass-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pass-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pass-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.pass-value.mono {
    font-family: var(--font-mono);
    font-size: 12px;
    word-break: break-all;
}

/* 12. Tab 9: Multi-Format Export Center */
.export-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 22px;
}

.export-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.export-card:hover {
    border-color: var(--accent-blue-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.full-package-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-secondary) 100%);
    border-color: var(--accent-blue-border);
}

.export-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.typst-icon {
    background: rgba(2, 132, 199, 0.12);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue-border);
}

.latex-icon {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-indigo);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.pdf-icon {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.zip-icon {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.export-card-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.export-card-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 14px;
}

.export-badge-row {
    display: flex;
    gap: 6px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: fadeIn 0.2s ease-out;
}

.modal-content {
    background: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card-secondary);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    font-size: 24px;
    color: var(--text-tertiary);
    cursor: pointer;
    line-height: 1;
    transition: color 0.15s ease;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-sm);
}

/* Modal 2: Formula & Python Code Inspector Specifics */
.modal-formula-content {
    max-width: 780px;
}

.formula-modal-title-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.modal-badge-formula {
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.formula-modal-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.formula-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.section-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.formula-math-display {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    font-family: var(--font-serif);
    font-size: 18px;
    color: var(--text-primary);
    text-align: center;
    letter-spacing: 0.02em;
}

.formula-params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.param-card {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.param-name {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-system);
}

.param-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.formula-code-block {
    background: var(--bg-code);
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 16px 18px;
    border-radius: var(--radius-md);
    line-height: 1.5;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

.formula-provenance-box {
    background: var(--bg-card-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.formula-provenance-box strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Responsive Media Queries */
@media (max-width: 1080px) {
    .studio-layout {
        flex-direction: column;
    }

    .studio-sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .nav-item {
        width: auto;
    }

    .action-grid {
        grid-template-columns: 1fr;
    }

    .inferential-layout {
        grid-template-columns: 1fr;
    }

    .comparison-sandbox-layout {
        grid-template-columns: 1fr;
    }

    .studio-main {
        padding: 20px 16px 60px;
    }
}
/* ==========================================================================
   OmniScholar Stage Cockpit & Real-Life Researcher Workflow Styles
   ========================================================================== */

/* Top Scholar Stepper Bar */
.scholar-stepper-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 10px 18px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
    gap: 8px;
}

.stepper-step {
    display: flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md, 8px);
    padding: 8px 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.stepper-step:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

.stepper-step.active {
    background: rgba(37, 99, 235, 0.15);
    border-color: var(--accent-color, #2563eb);
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.25);
}

.stepper-step .step-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--border-color);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.stepper-step.active .step-num {
    background: var(--accent-color, #2563eb);
    color: white;
}

.stepper-step .step-text {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
}

.stepper-step.active .step-text {
    color: var(--text-main);
}

.stepper-arrow {
    color: var(--text-muted);
    opacity: 0.4;
    font-size: 0.85rem;
    user-select: none;
}

/* Stage Hero Banners */
.stage-hero-banner {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 22px 28px;
    margin-bottom: 24px;
}

.stage-hero-tag {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--accent-color, #2563eb);
    margin-bottom: 6px;
    text-transform: uppercase;
}

.stage-hero-banner h2 {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 6px;
}

.stage-hero-banner p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    max-width: 900px;
}

/* Preset Topic Pills */
.framing-preset-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.preset-label {
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.preset-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-pill:hover {
    border-color: var(--accent-color, #2563eb);
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-color, #2563eb);
}

/* Conceptual Model Card */
.conceptual-model-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.model-step-box {
    padding: 10px 14px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.model-step-box.iv {
    background: rgba(37, 99, 235, 0.12);
    border-left: 3px solid #2563eb;
}

.model-step-box.mod {
    background: rgba(245, 158, 11, 0.12);
    border-left: 3px solid #f59e0b;
}

.model-step-box.dv {
    background: rgba(16, 185, 129, 0.12);
    border-left: 3px solid #10b981;
}

.model-step-box .box-role {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.model-step-box strong {
    font-size: 0.84rem;
    color: var(--text-main);
}

.model-relation-arrow {
    text-align: center;
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-muted);
}

/* Stage Navigation Footers */
.stage-footer-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 10px);
    margin-top: 28px;
}

.stage-footer-hint {
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--text-muted);
}

.btn-next-stage {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 12px 22px;
}

/* Instrument Stage Top Grid */
.instrument-top-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
}

.instrument-scales-box, .instrument-accelerators-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 20px;
}

.highlight-pilot {
    border-color: #059669 !important;
    background: rgba(5, 150, 105, 0.06) !important;
}