:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --card-border: #30363d;
    --primary-glow: #58a6ff;
    --secondary-glow: #bc8cff;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-cyan: #58a6ff;
    --accent-purple: #bc8cff;
    --transition-speed: 0.15s;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hidden { display: none !important; }

/* --- Global Elements & Components --- */

h2.section-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

.badge {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
}

.macro-badge {
    font-family: monospace;
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

mark {
    background: rgba(88, 166, 255, 0.2);
    color: var(--accent-cyan);
    border-radius: 3px;
    padding: 0 2px;
    font-weight: 600;
}

/* --- Buttons & Links --- */

.action-link {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    text-decoration: none;
    height: 32px;
    padding: 0 1rem;
    background: rgba(255, 255, 255, 0.05); /* Same subtle glass base for everyone */
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    cursor: pointer;
    flex-shrink: 0;
    box-sizing: border-box; /* Crucial for square buttons */
}

.action-link:hover {
    background: var(--accent-cyan);
    color: #050a15;
    transform: translateY(-2px); /* Standard lift instead of scale only */
    box-shadow: 0 0 15px var(--primary-glow);
    border-color: var(--accent-cyan);
}

.action-link.icon-only {
    width: 32px; /* Matching height from base */
    padding: 0;
    border-radius: 50%;
    aspect-ratio: 1 / 1;
}

/* Purple Variant for GDS Actions */
.action-link.gds-btn {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
    font-weight: 700;
    box-shadow: 0 0 10px rgba(188, 140, 255, 0.3);
}

.action-link.gds-btn:hover {
    background: #d0b0ff;
    border-color: #d0b0ff;
    color: #050a15;
    box-shadow: 0 0 20px var(--secondary-glow);
}

/* Metadata / Blueish Variant */
.action-link.meta-btn {
    border-color: var(--card-border); /* Matches base until hover */
    color: var(--text-secondary); /* Less "noisy" than full blue */
}

.action-link.meta-btn:hover {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan);
    color: #050a15;
}


.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    text-decoration: none;
    background: rgba(255, 255, 255, 0.05); /* Unified with action-link */
    border: 1px solid var(--card-border);
    border-radius: 50%;
    transition: all var(--transition-speed);
    box-sizing: border-box;
    flex-shrink: 0;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--accent-cyan);
    transform: scale(1.1);
}

.social-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* --- Layout Sections --- */

.hero {
    text-align: center;
    padding: 4rem 0 2rem;
}

.title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.highlight {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

.footer {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer a {
    color: var(--accent-cyan);
    text-decoration: none;
}

.footer a:hover { text-decoration: underline; }

/* --- About & Featured Design Cards --- */

.about-section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 3rem;
}

.about-content p { margin-bottom: 1rem; color: var(--text-secondary); font-size: 1.05rem; }
.about-content ul { margin-bottom: 1rem; padding-left: 1.5rem; color: var(--text-secondary); }
.about-content li { margin-bottom: 0.5rem; }
.about-content a { color: var(--accent-cyan); text-decoration: none; font-weight: 500; }
.about-content a:hover { text-decoration: underline; }
.about-content strong { color: var(--text-primary); }

.featured-section { margin-bottom: 4rem; }

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.featured-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
}

.featured-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
    box-shadow: 0 8px 24px rgba(0, 240, 255, 0.1);
}

.featured-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.featured-link:hover h3 { color: var(--accent-cyan); }

.featured-card h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.featured-slug {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    opacity: 0.7;
    font-family: inherit;
    word-break: break-all;
}

.featured-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.card-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
    align-items: center;
}

/* --- Selection & Tables --- */

.table-container {
    width: 100%;
    overflow-x: auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.explorer-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    table-layout: fixed;
}

.explorer-table th {
    padding: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--card-border);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.explorer-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--card-border);
    vertical-align: middle;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.explorer-table th:nth-child(1), .explorer-table td:nth-child(1) { width: 25%; }
.explorer-table th:nth-child(2), .explorer-table td:nth-child(2) { width: 14%; }
.explorer-table th:nth-child(3), .explorer-table td:nth-child(3) { width: auto; white-space: normal; }
.explorer-table th:nth-child(4), .explorer-table td:nth-child(4) { width: 180px; text-align: right; overflow: visible; }

.explorer-table tr:last-child td { border-bottom: none; }
.explorer-table tr { transition: background var(--transition-speed); }
.explorer-table tbody tr:hover { background: rgba(255, 255, 255, 0.05); }

.selectable-row { cursor: pointer; }
.selectable-row:hover { background: rgba(0, 212, 255, 0.05) !important; }

.shuttle-card h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.shuttle-card .meta { font-size: 0.875rem; color: var(--text-secondary); }
.shuttle-card .projects-count { margin-top: 1rem; font-weight: 600; color: var(--accent-cyan); }

/* Sticky Controls & Search */

.sticky-controls {
    position: sticky;
    top: 0;
    z-index: 100;
    margin-bottom: 2rem;
    padding: 1rem 0;
    background: var(--bg-color);
    border-bottom: 1px solid var(--card-border);
}

.controls-wrapper {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.back-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.back-btn:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--text-secondary); }

.search-container { flex: 1; position: relative; display: flex; align-items: center; }

.search-icon { position: absolute; left: 1rem; color: var(--text-secondary); pointer-events: none; }

#project-search {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem 0.75rem 3rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-speed);
}

#project-search:focus {
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 10px var(--primary-glow);
}

.shuttle-info { display: flex; justify-content: space-between; align-items: center; }

/* Table Content Utilities */
.project-title { font-weight: 600; color: var(--text-primary); }
.project-author { color: var(--accent-cyan); font-weight: 500; }
.project-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.4; padding: 0.5rem 0; }

.actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: flex-end;
    overflow: visible;
}

/* --- Modal & Overlays --- */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay:not(.hidden) { opacity: 1; pointer-events: auto; }

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay:not(.hidden) .modal-content { transform: translateY(0); }

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 { font-size: 1.25rem; font-weight: 600; }

.modal-close-btn {
    background: none; border: none; color: var(--text-secondary); font-size: 2rem;
    cursor: pointer; width: 32px; height: 32px; display: flex;
    align-items: center; justify-content: center; border-radius: 50%; transition: all 0.2s;
}

.modal-close-btn:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.1); }

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    font-family: monospace;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    line-height: 1.4;
}

/* --- Utilities & Loaders --- */

.loader-container { padding: 4rem; text-align: center; color: var(--text-secondary); }

.spinner {
    width: 40px; height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--accent-cyan);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .title { font-size: 2.5rem; }
    .controls-wrapper { flex-direction: column; align-items: stretch; }
}