/* ═══════════════════════════════════════════════════════════════════════════
   EyeLog Documentation Styles
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────────────────
   Docs Hero
   ───────────────────────────────────────────────────────────────────────────── */
.docs-hero {
    padding: 160px 0 80px;
    text-align: center;
    background: linear-gradient(180deg, var(--deep-space) 0%, var(--midnight) 100%);
    position: relative;
    overflow: hidden;
}

.docs-hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.docs-hero-content {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.docs-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
}

.docs-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Docs Section
   ───────────────────────────────────────────────────────────────────────────── */
.docs-section {
    padding: 80px 0;
}

.docs-section.section-dark {
    background: var(--midnight);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Docs Grid
   ───────────────────────────────────────────────────────────────────────────── */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .docs-grid {
        grid-template-columns: 1fr;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   Doc Card
   ───────────────────────────────────────────────────────────────────────────── */
.doc-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.doc-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--glow-soft);
}

.doc-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border-color: rgba(0, 212, 255, 0.2);
}

@media (max-width: 768px) {
    .doc-card.featured {
        grid-column: span 1;
    }
}

.doc-card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    background: var(--gradient-primary);
    border-radius: 50px;
}

.doc-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.doc-card-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--electric-blue);
}

.doc-card-content {
    flex: 1;
}

.doc-card-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.doc-card-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.doc-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8125rem;
}

.doc-card-meta .tag {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    color: var(--electric-blue);
}

.doc-card-meta .read-time {
    color: var(--text-muted);
}

.doc-card-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    align-self: center;
}

.doc-card:hover .doc-card-arrow {
    color: var(--electric-blue);
    transform: translateX(4px);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Principles Grid
   ───────────────────────────────────────────────────────────────────────────── */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 968px) {
    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }
}

.principle-card {
    padding: 2rem;
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    position: relative;
}

.principle-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.principle-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.principle-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Reference Grid
   ───────────────────────────────────────────────────────────────────────────── */
.reference-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 968px) {
    .reference-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .reference-grid {
        grid-template-columns: 1fr;
    }
}

.reference-card {
    padding: 1.5rem;
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.reference-card h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.ref-table {
    width: 100%;
    font-size: 0.8125rem;
}

.ref-table td {
    padding: 0.5rem 0;
    vertical-align: top;
}

.ref-table td:first-child {
    white-space: nowrap;
    padding-right: 1rem;
}

.ref-table td:last-child {
    color: var(--text-secondary);
}

.ref-table code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    padding: 2px 6px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--electric-blue);
    border-radius: 4px;
}

.state {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
}

.state.ready {
    background: rgba(16, 185, 129, 0.1);
    color: var(--neon-green);
}

.state.busy {
    background: rgba(0, 212, 255, 0.1);
    color: var(--electric-blue);
}

.state.warn {
    background: rgba(245, 158, 11, 0.1);
    color: var(--amber);
}

.layer {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 8px;
    background: var(--gradient-primary);
    border-radius: 4px;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Doc Page Styles (for individual doc pages)
   ───────────────────────────────────────────────────────────────────────────── */
.doc-page {
    padding-top: 80px;
}

.doc-header {
    padding: 80px 0 40px;
    background: linear-gradient(180deg, var(--deep-space) 0%, var(--midnight) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.doc-header-content {
    max-width: 800px;
}

.doc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.doc-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

.doc-breadcrumb a:hover {
    color: var(--electric-blue);
}

.doc-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.doc-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.doc-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 4rem;
    padding: 4rem 0;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 1100px) {
    .doc-content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .doc-toc {
        display: none;
    }
}

.doc-content {
    max-width: 800px;
}

/* Content Typography */
.doc-content h2 {
    font-size: 1.75rem;
    margin-top: 3rem;
    margin-bottom: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.doc-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.doc-content h3 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.doc-content h4 {
    font-size: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.doc-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.doc-content ul, .doc-content ol {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.doc-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.doc-content strong {
    color: var(--text-primary);
}

.doc-content a {
    color: var(--electric-blue);
    text-decoration: none;
}

.doc-content a:hover {
    text-decoration: underline;
}

/* Code Blocks */
.doc-content pre {
    background: #1e1e1e;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    line-height: 1.6;
}

.doc-content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875em;
}

.doc-content p code,
.doc-content li code {
    padding: 2px 6px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--electric-blue);
    border-radius: 4px;
}

/* Tables */
.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.doc-content th,
.doc-content td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.doc-content th {
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
}

.doc-content td {
    color: var(--text-secondary);
}

/* Blockquotes / Callouts */
.doc-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background: rgba(0, 212, 255, 0.05);
    border-left: 4px solid var(--electric-blue);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.doc-content blockquote p {
    margin-bottom: 0;
}

/* ASCII Diagrams */
.ascii-diagram {
    background: var(--midnight);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.ascii-diagram pre {
    background: transparent;
    padding: 0;
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-secondary);
}

/* Table of Contents */
.doc-toc {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

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

.doc-toc ul {
    list-style: none;
    padding: 0;
}

.doc-toc li {
    margin-bottom: 0.5rem;
}

.doc-toc a {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.25rem 0;
    padding-left: 1rem;
    border-left: 2px solid transparent;
    transition: all var(--transition-fast);
}

.doc-toc a:hover,
.doc-toc a.active {
    color: var(--electric-blue);
    border-left-color: var(--electric-blue);
}

.doc-toc .toc-h3 {
    padding-left: 2rem;
    font-size: 0.8125rem;
}

/* Navigation Links */
.doc-nav {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.doc-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem 1.5rem;
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-base);
    flex: 1;
    max-width: 300px;
}

.doc-nav-link:hover {
    border-color: rgba(0, 212, 255, 0.3);
}

.doc-nav-link.prev {
    align-items: flex-start;
}

.doc-nav-link.next {
    align-items: flex-end;
    margin-left: auto;
}

.doc-nav-link .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.doc-nav-link .title {
    font-weight: 600;
    color: var(--text-primary);
}

/* Nav active state */
.nav-links a.active {
    color: var(--electric-blue);
}