/* VRS X - Global Styles */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --accent: #38bdf8;
    --accent-hover: #0ea5e9;
    --border: #334155;
    --success: #22c55e;
    --warning: #f59e0b;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Navigation */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.nav-brand:hover {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

.nav-support {
    color: var(--text-muted) !important;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.25rem 0.75rem !important;
    font-size: 0.85rem;
    transition: color 0.2s, border-color 0.2s !important;
}

.nav-support:hover {
    color: #f87171 !important;
    border-color: #f87171;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
.main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 4rem;
    letter-spacing: -2px;
    margin-bottom: 0.5rem;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 300;
}

.badges {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.badge {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--border);
    color: var(--accent);
}

.platforms {
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-description {
    margin-top: 3rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Carousel */
.carousel-container {
    position: relative;
    max-width: 1000px;
    margin: 2rem auto 4rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    aspect-ratio: 16/9; /* Maintain standard aspect ratio */
}

.carousel-slide {
    display: none;
    width: 100%;
    height: 100%;
}

.carousel-slide.active {
    display: block;
    animation: fadeEffect 0.5s;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Fallback/Placeholder styling */
.carousel-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    color: var(--text-muted);
}

@keyframes fadeEffect {
    from {opacity: 0.4} 
    to {opacity: 1}
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(15, 23, 42, 0.6);
    color: var(--text-primary);
    border: none;
    padding: 1rem 0.75rem;
    cursor: pointer;
    font-size: 1.5rem;
    transition: background 0.3s;
    user-select: none;
    z-index: 10;
}

.carousel-btn:hover {
    background: rgba(15, 23, 42, 0.9);
    color: var(--accent);
}

.prev { left: 0; border-radius: 0 8px 8px 0; }
.next { right: 0; border-radius: 8px 0 0 8px; }

.carousel-dots {
    position: absolute;
    bottom: 1rem;
    width: 100%;
    text-align: center;
    z-index: 10;
}

.dot {
    cursor: pointer;
    height: 10px;
    width: 10px;
    margin: 0 4px;
    background-color: rgba(255,255,255,0.3);
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.3s ease;
}

.active-dot, .dot:hover {
    background-color: var(--accent);
}

/* Page Header */
.page-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.page-header .subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
}

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

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.feature-card h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Download Page */
.download-notice {
    text-align: center;
    padding: 4rem 2rem;
}

.download-notice h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.download-notice p {
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

.coming-soon-badge {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--warning);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    margin-top: 2rem;
    border: 1px solid var(--warning);
}

/* Devlog / Changelog */
.devlog-entry {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.devlog-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.devlog-version {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.devlog-date {
    color: var(--text-dim);
    font-size: 0.9rem;
}

.devlog-content h4 {
    color: var(--text-primary);
    margin: 1rem 0 0.5rem;
    font-size: 1rem;
}

.devlog-content ul {
    list-style: none;
    padding-left: 0;
}

.devlog-content li {
    color: var(--text-secondary);
    padding: 0.25rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.devlog-content li::before {
    content: "•";
    color: var(--accent);
    position: absolute;
    left: 0;
}

/* Documentation */
.doc-section {
    margin-bottom: 3rem;
}

.doc-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.doc-section h3 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--accent);
}

.doc-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

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

.code-block {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--border);
}

.inline-code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.85em;
}

/* Documentation Layout */
.docs-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
    align-items: start;
}

.docs-sidebar {
    position: sticky;
    top: 80px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
}

.docs-nav-link {
    display: block;
    padding: 0.6rem 1rem;
    color: var(--text-muted);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
}

.docs-nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.docs-nav-link.active {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}

.docs-content {
    min-width: 0;
}

/* Docs Markdown Rendered Elements */
.docs-figure {
    margin: 1.5rem 0;
}

.docs-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.docs-figure figcaption {
    margin-top: 0.5rem;
    color: var(--text-dim);
    font-size: 0.85rem;
    text-align: center;
}

.docs-blockquote {
    border-left: 3px solid var(--accent);
    padding: 0.75rem 1.25rem;
    margin: 1rem 0;
    background: rgba(56, 189, 248, 0.05);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}

.docs-blockquote p {
    margin: 0;
}

.table-wrapper {
    overflow-x: auto;
    margin: 1rem 0;
}

.docs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.docs-table th,
.docs-table td {
    padding: 0.6rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.docs-table th {
    color: var(--text-primary);
    font-weight: 600;
    background: var(--bg-tertiary);
}

.docs-table td {
    color: var(--text-secondary);
}

.docs-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

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

    .docs-sidebar {
        position: static;
    }
}

/* Devlog collapsible content */
.devlog-content {
    display: none;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.devlog-content.expanded {
    display: block;
}

.devlog-content h1 { display: none; }

.devlog-content h2 {
    font-size: 1.25rem;
    margin: 2rem 0 0.75rem;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.devlog-content h3 {
    font-size: 1.05rem;
    margin: 1.5rem 0 0.5rem;
    color: var(--accent);
}

.devlog-content p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.devlog-content ul, .devlog-content ol {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.devlog-content li {
    margin-bottom: 0.35rem;
    padding-left: 0;
}

.devlog-content li::before { display: none; }

.devlog-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

.devlog-content code {
    background: var(--bg-tertiary);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.85em;
}

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

.devlog-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.devlog-title {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

/* License */
.license-text {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

.license-section {
    margin-bottom: 2rem;
}

.license-section h2 {
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.875rem;
}

.footer strong {
    color: var(--text-secondary);
}

/* CTA Button */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.btn-disabled {
    background: var(--bg-tertiary);
    color: var(--text-dim);
    cursor: not-allowed;
}

/* Utilities */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.2rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .devlog-header {
        flex-direction: column;
    }
}