:root {
    --primary-color: #2c3e50;
    --secondary-color: #8e44ad;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --light-bg: #f5f0f7;
    --card-bg: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #d5cfe0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ── Header ─────────────────────────────────────────── */
header {
    background: linear-gradient(135deg, #2c3e50 0%, #8e44ad 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}
header h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.subtitle { font-size: 1.1rem; opacity: 0.9; }

/* ── Ideology Banner ────────────────────────────────── */
.ideology-banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0d8f0;
    padding: 1.5rem 2rem;
}
.ideology-content {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.ideology-principle {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}
.ideology-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}
.ideology-principle strong {
    color: #c9a0ff;
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}
.ideology-principle p {
    font-size: 0.85rem;
    line-height: 1.5;
    opacity: 0.9;
}
.ideology-principle em {
    color: #e0b0ff;
    font-style: normal;
    font-weight: 600;
}

/* ── Main Layout ────────────────────────────────────── */
main {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    max-width: 1600px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* ── Filters Sidebar ────────────────────────────────── */
.filters {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 2rem;
}
.claude-skill-btn {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(102,126,234,0.3);
}
.claude-skill-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102,126,234,0.4);
}
.filters h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}
.filter-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}
.filter-section:last-of-type { border-bottom: none; }
.filter-section h3 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    font-weight: 600;
}
.filter-section label {
    display: block;
    margin-bottom: 0.5rem;
    cursor: pointer;
    user-select: none;
}
.filter-section input[type="checkbox"] { margin-right: 0.5rem; }
.filter-section select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
}
#searchInput {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}
#searchInput:focus {
    outline: none;
    border-color: var(--secondary-color);
}
.filter-actions { margin-top: 1rem; }
#resetFilters {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--text-light);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}
#resetFilters:hover { background-color: var(--primary-color); }
.stats {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}
.stats span {
    font-weight: 600;
    color: var(--secondary-color);
}

/* ── Grid Area ──────────────────────────────────────── */
.arcs-grid {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.view-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}
.sort-controls label { margin-right: 0.5rem; font-weight: 600; }
.sort-controls select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
}
.view-toggle button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background-color: white;
    cursor: pointer;
    transition: all 0.3s;
}
.view-toggle button:first-child { border-radius: 4px 0 0 4px; }
.view-toggle button:last-child { border-radius: 0 4px 4px 0; border-left: none; }
.view-toggle button.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}
.view-toggle button:hover:not(.active) { background-color: var(--light-bg); }

/* ── Card Layouts ───────────────────────────────────── */
.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}
.list-layout {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ── Arc Card ───────────────────────────────────────── */
.arc-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow);
    border-left: 4px solid #ccc;
}
.arc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--secondary-color);
}
.arc-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
}
.arc-card .logline {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-style: italic;
}
.arc-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}
.badge {
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    white-space: nowrap;
}
.badge.metaphor {
    background: linear-gradient(135deg, #667eea22, #764ba222);
    color: #5b3d8f;
    border: 1px solid #c9a0ff55;
}
.badge.coupling-high   { background-color: #d4edda; color: #155724; }
.badge.coupling-medium { background-color: #fff3cd; color: #856404; }
.badge.coupling-low    { background-color: #f8d7da; color: #721c24; }
.badge.grade           { background-color: #d1ecf1; color: #0c5460; }
.badge.genre           { background-color: #e7e7f1; color: #383d75; }
.badge.seed            { background-color: #ffeaa7; color: #6c5200; border: 1px solid #d4ac0d; }

.arc-concepts {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}
.arc-concepts strong { color: var(--text-dark); }

/* Metaphor-type left border colors */
.arc-card[data-metaphor="Growth/Accumulation"]       { border-left-color: #27ae60; }
.arc-card[data-metaphor="Spreading/Multiplying"]     { border-left-color: #e74c3c; }
.arc-card[data-metaphor="Balance/Equilibrium"]       { border-left-color: #3498db; }
.arc-card[data-metaphor="Mystery/Investigation"]     { border-left-color: #9b59b6; }
.arc-card[data-metaphor="Encoding/Decoding"]         { border-left-color: #1abc9c; }
.arc-card[data-metaphor="Proportion/Scaling"]        { border-left-color: #e67e22; }
.arc-card[data-metaphor="Navigation/Pathfinding"]    { border-left-color: #2980b9; }
.arc-card[data-metaphor="Prediction/Forecasting"]    { border-left-color: #f39c12; }
.arc-card[data-metaphor="Cycles/Repetition"]         { border-left-color: #16a085; }
.arc-card[data-metaphor="Transformation"]            { border-left-color: #8e44ad; }
.arc-card[data-metaphor="Distribution/Fairness"]     { border-left-color: #c0392b; }
.arc-card[data-metaphor="Competition/Optimization"]  { border-left-color: #d35400; }
.arc-card[data-metaphor="Construction/Building"]     { border-left-color: #7f8c8d; }
.arc-card[data-metaphor="Network/Connection"]        { border-left-color: #2c3e50; }

/* List view */
.list-layout .arc-card {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
    align-items: start;
}

/* ── Modal ──────────────────────────────────────────── */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    animation: fadeIn 0.3s;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
    background-color: var(--card-bg);
    margin: 3% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 960px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
    animation: slideDown 0.3s;
}
@keyframes slideDown {
    from { transform: translateY(-50px); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}

.close, .close-skill {
    color: var(--text-light);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}
.close:hover, .close-skill:hover { color: var(--accent-color); }

#modalBody h2 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}
#modalBody .modal-logline {
    font-style: italic;
    color: var(--text-light);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}
.modal-section {
    margin-bottom: 1.5rem;
}
.modal-section h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}
.modal-section p,
.modal-section ul {
    color: var(--text-dark);
    line-height: 1.8;
}
.modal-section ul { margin-left: 1.5rem; }
.modal-section ul li { margin-bottom: 0.4rem; }

/* Act structure display */
.act-structure {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-top: 0.75rem;
}
.act-block {
    background: var(--light-bg);
    border-radius: 6px;
    padding: 1rem;
    border-top: 3px solid var(--secondary-color);
}
.act-block.hook    { border-top-color: #27ae60; }
.act-block.tension { border-top-color: #e74c3c; }
.act-block.resolution { border-top-color: #3498db; }
.act-block h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}
.act-block p { font-size: 0.9rem; }

/* Coupling indicator in modal */
.coupling-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.coupling-indicator.high   { background: #d4edda; color: #155724; }
.coupling-indicator.medium { background: #fff3cd; color: #856404; }
.coupling-indicator.low    { background: #f8d7da; color: #721c24; }

/* Contrast pairs in modal */
.contrast-pair-link {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: #f0f0f7;
    border: 1px solid #d5cfe0;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--secondary-color);
    cursor: pointer;
    margin: 0.25rem;
    transition: all 0.2s;
}
.contrast-pair-link:hover {
    background: #e0d8f0;
    border-color: var(--secondary-color);
}

/* Concept tags */
.concept-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: #e8f4f8;
    border: 1px solid #b8d8e8;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #2c6975;
    margin: 0.15rem;
}
.concept-tag.secondary {
    background: #f5f0f7;
    border-color: #d5cfe0;
    color: #6b5b8a;
}

/* Skill modal specifics */
#skillModalBody h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}
#skillModalBody .modal-section { margin-bottom: 1.5rem; }
#skillModalBody ul { margin-left: 1.5rem; }
#skillModalBody li { margin-bottom: 0.4rem; }
.example-prompts {
    color: #666;
    font-style: italic;
    line-height: 2;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 1024px) {
    main { grid-template-columns: 250px 1fr; gap: 1.5rem; }
    .ideology-content { grid-template-columns: 1fr; gap: 1rem; }
}
@media (max-width: 768px) {
    main { grid-template-columns: 1fr; }
    .filters { position: relative; top: 0; }
    .grid-layout { grid-template-columns: 1fr; }
    .list-layout .arc-card { grid-template-columns: 1fr; }
    .act-structure { grid-template-columns: 1fr; }
    header h1 { font-size: 2rem; }
    .modal-content { width: 95%; margin: 2% auto; padding: 1.5rem; }
    .ideology-content { grid-template-columns: 1fr; }
}