/* Making Minds - Shared Stylesheet */

:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #1a1a1d;
    --text-primary: #e8e8ec;
    --text-secondary: #a0a0a8;
    --text-muted: #6b6b73;
    --accent-cyan: #0ef0e8;
    --accent-cyan-dim: rgba(14, 240, 232, 0.15);
    --accent-amber: #f0a000;
    --accent-purple: #a855f7;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.12);
    --font-display: 'Spectral', Georgia, serif;
    --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 17px;
    font-weight: 300;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1000;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, var(--bg-primary) 0%, transparent 100%);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo span {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-cyan);
}

/* Page Header */
.page-header {
    padding: 10rem 3rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header .breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.page-header .breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
}

.page-header .breadcrumb a:hover {
    color: var(--accent-cyan);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.page-header .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.8;
}

/* Main Content */
.content {
    padding: 0 3rem 6rem;
    max-width: 900px;
    margin: 0 auto;
}

.content h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 3rem 0 1.5rem;
    letter-spacing: -0.01em;
}

.content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    margin: 2.5rem 0 1rem;
}

.content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.content ul, .content ol {
    color: var(--text-secondary);
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

.content li {
    margin-bottom: 0.75rem;
}

.content a {
    color: var(--accent-cyan);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.content a:hover {
    border-bottom-color: var(--accent-cyan);
}

/* Code Blocks */
.code-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow-x: auto;
}

.code-block pre {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.code-block .comment { color: var(--text-muted); }
.code-block .keyword { color: var(--accent-purple); }
.code-block .string { color: var(--accent-cyan); }
.code-block .function { color: var(--accent-amber); }

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-tertiary);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    color: var(--accent-cyan);
}

/* Quote Block */
.quote-block {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent-cyan);
    padding: 1.5rem 2rem;
    border-radius: 0 8px 8px 0;
    margin: 2rem 0;
}

.quote-block p {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.quote-block cite {
    font-family: var(--font-body);
    font-style: normal;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Highlight Box */
.highlight-box {
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(14, 240, 232, 0.3);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    margin: 2rem 0;
}

.highlight-box h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-bottom: 0.75rem;
}

.highlight-box p {
    color: var(--text-primary);
    margin-bottom: 0;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

th, td {
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--border-subtle);
}

th {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

td {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

tr:hover td {
    background: var(--bg-secondary);
}

/* Tags */
.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.7rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--text-muted);
    display: inline-block;
    margin: 0.25rem;
}

.tag.primary {
    background: var(--accent-cyan-dim);
    color: var(--accent-cyan);
}

/* Architecture Diagram */
.architecture-diagram {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.4;
    color: var(--text-secondary);
    overflow-x: auto;
    white-space: pre;
}

/* Sidebar Navigation (for long pages) */
.page-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

.sidebar-nav {
    position: sticky;
    top: 8rem;
    height: fit-content;
}

.sidebar-nav h4 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
}

.sidebar-nav a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    border-left: 2px solid transparent;
    padding-left: 1rem;
    margin-left: -1rem;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--accent-cyan);
    border-left-color: var(--accent-cyan);
}

/* Research Card Grid */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.research-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.research-card:hover {
    border-color: var(--border-medium);
    transform: translateY(-2px);
}

.research-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin: 0 0 0.75rem;
    color: var(--text-primary);
}

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

/* Footer */
footer {
    padding: 3rem;
    text-align: center;
    border-top: 1px solid var(--border-subtle);
    margin-top: 4rem;
}

footer p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer a:hover {
    color: var(--accent-cyan);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

/* Mobile */
@media (max-width: 900px) {
    .page-with-sidebar {
        grid-template-columns: 1fr;
    }
    
    .sidebar-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .page-header,
    .content {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .page-header {
        padding-top: 7rem;
    }

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