/* PSP Catalogue Styles - matches docs design system */

:root {
    --bg-primary: #faf9f7;
    --bg-secondary: #f0eeeb;
    --bg-code: #1e2937;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-cyan: #0891b2;
    --accent-cyan-light: #ecfeff;
    --accent-amber: #d97706;
    --accent-amber-light: #fef3c7;
    --accent-green: #16a34a;
    --accent-green-light: #dcfce7;
    --accent-red: #dc2626;
    --accent-red-light: #fee2e2;
    --accent-purple: #9333ea;
    --accent-purple-light: #f3e8ff;
    --border-color: #e2e0dc;
    --border-accent: #0891b2;

    --font-display: 'DM Sans', sans-serif;
    --font-body: 'Crimson Pro', Georgia, serif;
    --font-mono: 'JetBrains Mono', monospace;

    --content-width: 800px;
    --sidebar-width: 260px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 2rem;
}

body {
    font-family: var(--font-body);
    font-size: 20px;
    line-height: 1.75;
    color: var(--text-primary);
    background: var(--bg-primary);
    background-image:
        linear-gradient(rgba(14, 116, 144, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14, 116, 144, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Layout */
.layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    padding: 2rem 1.25rem;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 2px solid var(--text-primary);
}

.sidebar-logo {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.sidebar-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.sidebar-title a {
    color: inherit;
    text-decoration: none;
    border: none;
}

.nav-section {
    margin-bottom: 1.25rem;
}

.nav-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.125rem;
}

.nav-link {
    display: block;
    padding: 0.4rem 0.5rem;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    border-bottom: none;
    transition: all 0.15s ease;
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom: none;
}

.nav-link.active {
    background: var(--accent-cyan-light);
    color: var(--accent-cyan);
}

/* Main Content */
.main {
    grid-column: 2;
    padding: 3rem 4rem 6rem;
    max-width: calc(var(--content-width) + 8rem);
}

/* Hero / Page Header */
.hero {
    margin-bottom: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 2rem;
    height: 2px;
    background: var(--accent-cyan);
}

.hero-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* Page Header (for component/port/schema pages) */
.page-header {
    margin-bottom: 2.5rem;
}

.breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

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

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

.breadcrumb span {
    margin: 0 0.5rem;
}

.page-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Tags / Badges */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

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

.tag.amber {
    background: var(--accent-amber-light);
    color: var(--accent-amber);
}

.tag.green {
    background: var(--accent-green-light);
    color: var(--accent-green);
}

.tag.purple {
    background: var(--accent-purple-light);
    color: var(--accent-purple);
}

.tag.red {
    background: var(--accent-red-light);
    color: var(--accent-red);
}

/* Sections */
.section {
    margin-bottom: 3rem;
    scroll-margin-top: 2rem;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-cyan);
    padding: 0.2rem 0.4rem;
    background: var(--accent-cyan-light);
    border-radius: 4px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

/* Typography */
p {
    margin-bottom: 1.25rem;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease;
}

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

h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem;
}

h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
}

strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* Component Cards Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.card {
    display: block;
    padding: 1.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.1);
    transform: translateY(-2px);
}

.card-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Item Lists (for ports, schemas, events, etc) */
.item-list {
    list-style: none;
    margin: 1rem 0;
}

.item-list li {
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--accent-cyan);
}

.item-list li:hover {
    border-left-color: var(--accent-amber);
}

.item-name {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--accent-cyan);
}

.item-meta {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Two-column layout for ports/adapters */
.columns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 1.5rem 0;
}

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

.column-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

/* Decision Table */
.decision-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.decision-table th {
    font-family: var(--font-display);
    font-weight: 700;
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
}

.decision-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}

.decision-table tr:hover td {
    background: var(--accent-cyan-light);
}

/* Code */
code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    padding: 0.15em 0.4em;
    background: var(--bg-secondary);
    border-radius: 4px;
    color: var(--accent-cyan);
}

pre {
    background: var(--bg-code);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin: 1rem 0;
}

pre code {
    background: none;
    padding: 0;
    color: #e2e8f0;
    font-size: 0.85rem;
    line-height: 1.6;
}

/* Code Block with header */
.code-block {
    margin: 1.5rem 0;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-code);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-dots {
    display: flex;
    gap: 6px;
}

.code-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.code-dot:nth-child(1) { background: #ff5f56; }
.code-dot:nth-child(2) { background: #ffbd2e; }
.code-dot:nth-child(3) { background: #27ca40; }

.code-filename {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.code-content {
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    padding: 0;
    background: none;
}

/* Insight / Callout boxes */
.insight {
    margin: 2rem 0;
    padding: 1.5rem 1.75rem;
    background: linear-gradient(135deg, var(--accent-amber-light) 0%, #fff7ed 100%);
    border-radius: 8px;
    border-left: 3px solid var(--accent-amber);
}

.insight-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-amber);
    margin-bottom: 0.5rem;
}

.insight p {
    margin: 0;
    color: var(--text-primary);
}

/* Stats row */
.stats {
    display: flex;
    gap: 2rem;
    margin: 1.5rem 0;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* Search */
.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
    transition: all 0.15s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px var(--accent-cyan-light);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* Progress bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-amber));
    z-index: 1000;
    transition: width 0.1s ease;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

/* Back link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.back-link:hover {
    color: var(--accent-cyan);
}

/* Text utilities */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-small { font-size: 0.9rem; }
.text-mono { font-family: var(--font-mono); }

/* Spacing utilities */
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.ml-2 { margin-left: 0.5rem; }

/* Responsive */
@media (max-width: 1024px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .main {
        grid-column: 1;
        padding: 2rem;
    }

    .hero-title {
        font-size: 2rem;
    }

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