/* Blog-specific styles — extends the main site style.css variables */

/* Blog layout */
.blog-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Blog index page */
.blog-grid {
    display: grid;
    gap: 20px;
    list-style: none;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: block;
    color: inherit;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-glow);
    box-shadow: 0 12px 32px var(--shadow-medium);
    color: inherit;
    text-shadow: none;
}

.blog-card:hover::before {
    opacity: 1;
}

.blog-card .card-venue {
    display: inline-block;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 4px 12px;
    border-radius: 5px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.blog-card .card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.blog-card .card-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

/* Blog post page */
.blog-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 48px;
}

.blog-nav a {
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-nav a:hover {
    color: var(--accent);
    text-shadow: none;
}

/* Article header */
.blog-header {
    margin-bottom: 48px;
}

.blog-header .venue-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.blog-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 16px;
}

.blog-header .authors {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.blog-header .paper-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.blog-header .paper-links a {
    padding: 6px 14px;
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    font-size: 0.82rem;
    color: var(--accent);
    transition: all 0.3s ease;
}

.blog-header .paper-links a:hover {
    background: var(--accent);
    color: white;
    text-shadow: none;
}

/* Article body */
article h2 {
    font-size: 1.5rem;
    margin-top: 48px;
    margin-bottom: 20px;
}

article h3 {
    font-size: 1.1rem;
    color: var(--text);
    text-transform: none;
    letter-spacing: 0;
    font-weight: 600;
    margin: 32px 0 12px;
}

article p {
    font-size: 1rem;
    line-height: 1.85;
    margin-bottom: 18px;
}

article ul, article ol {
    margin-bottom: 18px;
    padding-left: 24px;
    color: var(--text-muted);
    line-height: 1.85;
}

article li {
    margin-bottom: 6px;
}

/* TL;DR box */
.tldr {
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    border-left: 4px solid var(--accent);
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 36px;
}

.tldr strong {
    color: var(--accent);
    font-weight: 700;
}

.tldr p {
    margin: 0;
    color: var(--text);
    font-size: 0.95rem;
}

/* Interactive demo container */
.demo-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    margin: 32px 0;
}

.demo-container h3 {
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--text);
    font-size: 1rem;
}

.demo-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 20px;
}

.demo-controls label {
    font-size: 0.88rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.demo-controls select,
.demo-controls input[type="range"] {
    accent-color: var(--accent);
}

.demo-controls select {
    background: var(--bg-dark);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 0.85rem;
    font-family: inherit;
}

.demo-controls button,
.demo-btn {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s ease;
}

.demo-controls button:hover,
.demo-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.demo-btn-secondary {
    background: var(--accent-bg);
    color: var(--accent);
    border: 1px solid var(--accent-border);
}

.demo-btn-secondary:hover {
    background: var(--accent);
    color: white;
}

.demo-canvas-wrap {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
}

.demo-canvas-wrap canvas {
    display: block;
    width: 100%;
    height: auto;
}

.demo-canvas-wrap svg {
    display: block;
    width: 100%;
    height: auto;
}

/* Side by side panels */
.demo-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 640px) {
    .demo-split {
        grid-template-columns: 1fr;
    }
}

.demo-panel {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}

.demo-panel h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Code blocks */
.code-block {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    margin: 16px 0;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text);
}

.code-block code {
    font-family: inherit;
}

.code-inline {
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.85em;
    color: var(--accent);
}

/* Result / key takeaway box */
.result-box {
    background: var(--secondary-bg);
    border: 1px solid var(--secondary-border);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 24px 0;
}

.result-box p {
    margin: 0;
    color: var(--text);
}

/* Figure captions */
.figure-caption {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 8px;
    font-style: italic;
}

/* Blog footer */
.blog-citation {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px 24px;
    margin-top: 48px;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.78rem;
    line-height: 1.7;
    color: var(--text-muted);
    white-space: pre-wrap;
}

/* Slider value display */
.slider-value {
    font-family: 'SF Mono', monospace;
    font-size: 0.82rem;
    color: var(--accent);
    min-width: 40px;
}

/* Info text below demos */
.demo-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 8px;
}

/* Node/graph styles for SVG demos */
.node-circle {
    cursor: pointer;
    transition: fill 0.2s;
}

.node-label {
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    fill: var(--text);
    text-anchor: middle;
    pointer-events: none;
}

.edge-line {
    stroke: var(--border-glow);
    stroke-width: 1.5;
}

/* Attention weight highlight */
.attention-high { fill: var(--accent); opacity: 0.9; }
.attention-mid { fill: var(--accent); opacity: 0.5; }
.attention-low { fill: var(--accent); opacity: 0.15; }

/* Diff view */
.diff-add {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

.diff-remove {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    text-decoration: line-through;
}

/* Responsive */
@media (max-width: 640px) {
    .blog-header h1 {
        font-size: 1.6rem;
    }

    .demo-container {
        padding: 16px;
    }

    .blog-nav {
        flex-wrap: wrap;
        gap: 8px;
    }
}