/* ============================================
   Models Page Styles
   ============================================ */

/* Models Content */
.models-content {
    position: relative;
    z-index: 1;
    padding: 80px 0 150px;
}

.model-intro {
    margin-bottom: 100px;
    text-align: center;
}

.lead {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 300;
    color: var(--text-dim);
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto;
}

/* Model Section */
.model-section {
    margin-bottom: 150px;
    scroll-margin-top: 100px;
}

/* Model Header */
.model-header {
    display: flex;
    align-items: center;
    gap: 36px;
    margin-bottom: 60px;
}

.model-icon {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: 16px;
    background: rgba(212, 175, 55, 0.04);
    transition: all 0.4s ease;
}

.model-section:hover .model-icon {
    border-color: rgba(212, 175, 55, 0.5);
    background: rgba(212, 175, 55, 0.08);
    box-shadow: 0 0 24px rgba(212, 175, 55, 0.12);
}

.model-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--gold);
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    opacity: 0.85;
}

.model-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1;
}

.model-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 300;
    color: var(--gold);
    letter-spacing: 0.02em;
}

.model-body h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 300;
    color: var(--text);
    margin: 60px 0 30px;
}

.model-body p {
    font-size: 18px;
    font-weight: 300;
    color: var(--text-dim);
    line-height: 1.9;
    margin-bottom: 25px;
}

.model-body em {
    font-style: italic;
    color: var(--gold);
}

.model-body strong {
    font-weight: 500;
    color: var(--text);
}

/* Model Grid */
.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 35px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.model-card:hover {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.08), 0 8px 32px rgba(0,0,0,0.3);
}

.model-card h4 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 28px;
    font-weight: 400;
    color: var(--gold);
    margin-bottom: 20px;
}

.model-card p {
    font-size: 16px;
    margin-bottom: 12px;
}

.model-card ul {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}

.model-card ul li {
    font-size: 15px;
    font-weight: 300;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.model-card ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--gold);
}

.model-card code {
    display: block;
    margin: 10px 0;
}

/* Formula box */
.formula-box {
    background: rgba(212, 175, 55, 0.04);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 6px;
    padding: 28px 32px;
    margin: 40px 0;
}

.formula-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--gold);
    opacity: 0.7;
    margin-bottom: 16px;
}

.formula-box code {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    color: var(--text);
    background: none;
    padding: 0;
    margin: 0;
    line-height: 1.7;
    white-space: pre-wrap;
}

.formula-note {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 16px;
}

/* ── Code Block ── */
.code-block {
    background: #0d0d0d;
    border: 1px solid rgba(212, 175, 55, 0.18);
    border-radius: 6px;
    margin: 40px 0;
    overflow: hidden;
    position: relative;
}

/* Light theme: warm parchment, dark ink — luxury editorial */
[data-theme="light"] .code-block {
    background: #f5f0e6;
    border-color: rgba(180, 140, 20, 0.25);
}

/* Language label */
.code-block::before {
    content: attr(data-lang);
    position: absolute;
    top: 12px;
    right: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(212, 175, 55, 0.45);
}

[data-theme="light"] .code-block::before {
    color: rgba(140, 100, 10, 0.5);
}

.code-block pre {
    margin: 0;
    padding: 28px 32px;
    overflow-x: auto;
    white-space: pre;
    word-wrap: normal;
}

.code-block code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.85;
    color: #c8c0b0;
    background: none;
    padding: 0;
    display: block;
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
}

/* Light theme code text — dark ink on parchment */
[data-theme="light"] .code-block code {
    color: #2a2218;
}

/* Dark theme syntax tokens */
.py-kw   { color: #d4af37; }
.py-cls  { color: #e8d8a0; }
.py-fn   { color: #a8c8e8; }
.py-str  { color: #a8c8a0; }
.py-num  { color: #a0b8d8; }
.py-cm   { color: #505050; font-style: italic; }
.py-dec  { color: #c0a0c0; }
.py-bi   { color: #d0a8a0; }
.py-op   { color: #808080; }

/* Light theme syntax tokens — warm ink palette */
[data-theme="light"] .py-kw   { color: #8a6010; }
[data-theme="light"] .py-cls  { color: #5a4a20; }
[data-theme="light"] .py-fn   { color: #2a5a7a; }
[data-theme="light"] .py-str  { color: #3a6a3a; }
[data-theme="light"] .py-num  { color: #2a4a7a; }
[data-theme="light"] .py-cm   { color: #9a9080; font-style: italic; }
[data-theme="light"] .py-dec  { color: #6a3a6a; }
[data-theme="light"] .py-bi   { color: #7a3a2a; }
[data-theme="light"] .py-op   { color: #6a6050; }

/* Formula box */
.formula-box {
    background: rgba(212, 175, 55, 0.04);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 6px;
    padding: 28px 32px;
    margin: 40px 0;
}

[data-theme="light"] .formula-box {
    background: rgba(180, 140, 20, 0.05);
    border-color: rgba(180, 140, 20, 0.3);
}

.formula-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--gold);
    opacity: 0.7;
    margin-bottom: 16px;
}

.formula-box code {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    color: var(--text);
    background: none;
    padding: 0;
    margin: 0;
    line-height: 1.7;
    white-space: pre-wrap;
}

.formula-note {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 16px;
}

/* Formula box tokens */
.formula-box code .fml-var  { color: #a8c8e8; }
.formula-box code .fml-num  { color: #a0b8d8; }
.formula-box code .fml-op   { color: #d4af37; }
.formula-box code .fml-fn   { color: #a8c8a0; }

[data-theme="light"] .formula-box code .fml-var { color: #2a5a7a; }
[data-theme="light"] .formula-box code .fml-num { color: #2a4a7a; }
[data-theme="light"] .formula-box code .fml-op  { color: #8a6010; }
[data-theme="light"] .formula-box code .fml-fn  { color: #3a6a3a; }

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.metric {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.metric:hover {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.08), 0 8px 32px rgba(0,0,0,0.3);
}

.metric-value {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(48px, 8vw, 64px);
    font-weight: 300;
    background: linear-gradient(135deg, var(--gold), var(--gold-dim));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 15px;
}

.metric-label {
    font-size: 14px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text);
    margin-bottom: 15px;
}

.metric p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

/* Feature List */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.feature-list li {
    font-size: 17px;
    font-weight: 300;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 20px;
    padding-left: 35px;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-size: 24px;
    font-weight: 400;
}

/* Causal Graph */
.causal-graph {
    background: var(--bg);
    border-radius: 8px;
    padding: 25px;
    margin: 20px 0;
}

.causal-graph code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    color: var(--text-dim);
    line-height: 2;
}

/* Page Navigation — matches main.css style exactly */
.page-nav {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 120px;
    padding-top: 60px;
    border-top: 1px solid var(--border);
}

.page-nav-link {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-decoration: none;
    transition: opacity 0.3s ease;
    flex: 1;
}

.page-nav-link.prev { align-items: flex-start; }
.page-nav-link.next { align-items: flex-end; text-align: right; }
.page-nav-link:hover { opacity: 0.7; }

.page-nav-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.page-nav-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 28px;
    font-weight: 300;
    color: var(--gold);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .model-header {
        gap: 24px;
    }
    .model-icon {
        width: 60px;
        height: 60px;
    }
    .model-icon svg {
        width: 26px;
        height: 26px;
    }
    .model-grid,
    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 768px) {
    .model-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .model-icon {
        width: 56px;
        height: 56px;
    }
    .model-section {
        margin-bottom: 100px;
    }
    .model-grid,
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .model-card,
    .formula-box,
    .code-block,
    .metric {
        padding: 25px;
    }
    .formula-box code {
        font-size: 16px;
    }
    .code-block code {
        font-size: 12px;
    }
    .page-nav {
        flex-direction: column;
        gap: 20px;
    }
    .page-nav-link,
    .page-nav-link.prev,
    .page-nav-link.next {
        align-items: flex-start !important;
        text-align: left !important;
    }
}

@media (max-width: 480px) {
    .model-body p {
        font-size: 16px;
    }
    .model-card,
    .formula-box,
    .code-block,
    .metric {
        padding: 20px;
    }
}