:root {
    /* Colors */
    --color-bg: #000;
    --color-bg-elevated: #111113;
    --color-surface: #18181b;
    --color-border: #27272a;
    --color-text: #fafafa;
    --color-text-muted: #a1a1aa;
    --color-text-subtle: #71717a;
    --color-accent: #F4FD06;
    --color-accent-soft: rgba(249, 115, 22, 0.15);
    --color-white: #ffffff;
    
    /* Article view colors */
    --article-bg: #ffffff;
    --article-text: #18181b;
    --article-text-muted: #52525b;
    
    /* Typography */
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'Palatino', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 150ms var(--ease-out-quart);
    --transition-base: 300ms var(--ease-out-expo);
    --transition-slow: 500ms var(--ease-out-expo);
    
    /* Layout */
    --max-width: 1400px;
    --header-height: 80px;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Noise texture overlay */
.noise-overlay {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1000;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   Header
   ======================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.7;
}

.logo-mark {
    color: var(--color-accent);
    font-size: 1.5rem;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.nav-links {
    display: flex;
    gap: var(--space-xs);
}

.nav-link {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

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

.search-container {
    position: relative;
    width: 280px;
}

.search-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-right: 60px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    outline: none;
    transition: all var(--transition-fast);
}

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

.search-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.search-icon {
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    background: var(--color-border);
    padding: 4px 8px;
    border-radius: 4px;
}

/* ========================================
   Main Content
   ======================================== */

.main-content {
    min-height: 100vh;
    padding-top: var(--header-height);
}

/* Home View */
.home-view {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-xl);
}

.home-view.hidden {
    display: none;
}

/* Hero Section */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3xl);
    margin-bottom: var(--space-4xl);
    animation: fadeSlideUp 800ms var(--ease-out-expo) forwards;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-image {
    flex-shrink: 0;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-inner {
    width: 100%;
    height: 100%;
    animation: heroImageFloat 6s ease-in-out infinite, heroImageSpin 30s linear infinite;
}

.hero-image-inner svg {
    width: 100%;
    height: 100%;
}

@keyframes heroImageFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(3deg); }
}

@keyframes heroImageSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Combine animations properly */
.hero-image-inner {
    animation: heroImageFloat 6s ease-in-out infinite;
}

.hero-image-inner svg {
    animation: heroImageSpin 30s linear infinite;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.hero-line {
    display: block;
}

.hero-line.accent {
    font-style: italic;
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 500px;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: var(--space-xl);
}

/* Article Card */
.article-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-xl);
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
    animation: cardReveal 600ms var(--ease-out-expo) forwards;
}

@keyframes cardReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-accent-soft) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 
        0 20px 40px -20px rgba(0, 0, 0, 0.5),
        0 0 60px -30px var(--color-accent);
}

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

.card-meta {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.card-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-subtle);
}

.card-divider {
    width: 4px;
    height: 4px;
    background: var(--color-border);
    border-radius: 50%;
}

.card-author {
    font-weight: 500;
}

.card-title {
    position: relative;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    transition: color var(--transition-fast);
}

.article-card:hover .card-title {
    color: var(--color-accent);
}

.card-excerpt {
    position: relative;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.article-card:hover .tag {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.card-arrow {
    position: absolute;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-accent);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-base);
}

.article-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* No Results */
.no-results {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl);
    text-align: center;
    color: var(--color-text-muted);
}

.no-results.visible {
    display: flex;
    animation: fadeSlideUp 400ms var(--ease-out-expo) forwards;
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   Article View
   ======================================== */

.article-view {
    display: none;
    background: var(--article-bg);
    min-height: 100vh;
}

.article-view.visible {
    display: block;
    animation: articleSlideIn 500ms var(--ease-out-expo) forwards;
}

@keyframes articleSlideIn {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.back-button {
    position: fixed;
    top: calc(var(--header-height) + var(--space-xl));
    left: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--article-text-muted);
    background: var(--article-bg);
    border: 1px solid #e4e4e7;
    border-radius: 8px;
    transition: all var(--transition-fast);
    z-index: 50;
}

.back-button:hover {
    color: var(--article-text);
    border-color: var(--color-accent);
    background: #fafafa;
}

.back-arrow {
    transition: transform var(--transition-fast);
}

.back-button:hover .back-arrow {
    transform: translateX(-3px);
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
    color: var(--article-text);
}

.article-header {
    margin-bottom: var(--space-3xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid #e4e4e7;
}

.article-header .card-tags {
    margin-bottom: var(--space-lg);
}

.article-header .tag {
    background: #f4f4f5;
    border-color: #e4e4e7;
    color: var(--article-text-muted);
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--article-text);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9375rem;
    color: var(--article-text-muted);
}

.article-meta .author {
    font-weight: 600;
    color: var(--article-text);
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.2;
}

.article-body p {
    margin-bottom: var(--space-lg);
}

.article-body a {
    text-decoration: underline;
    color: #0066cc;
}

.article-body h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    color: var(--article-text);
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    color: var(--article-text);
}

.article-body h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    color: var(--article-text);
}

.article-body blockquote {
    margin: var(--space-2xl) 0;
    padding: var(--space-lg) var(--space-xl);
    border-left: 3px solid var(--color-accent);
    background: #fafafa;
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--article-text-muted);
}

.article-body code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 2px 6px;
    background: #f4f4f5;
    border-radius: 4px;
}

.article-body img,
.article-body video {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--space-xl) 0;
}

.article-body img {
    display: block;
}

.article-body video {
    display: block;
    background: #000;
}

.article-body ul, .article-body ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-body li {
    margin-bottom: var(--space-sm);
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) var(--space-xl);
}

.article-view.visible ~ .site-footer {
    background: var(--article-bg);
    border-color: #e4e4e7;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.article-view.visible ~ .site-footer .footer-text {
    color: var(--article-text-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

.article-view.visible ~ .site-footer .footer-links a {
    color: var(--article-text-muted);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .nav-links {
        display: none;
    }
    
    .search-container {
        width: 200px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .site-header {
        padding: 0 var(--space-md);
    }
    
    .logo-text {
        display: none;
    }
    
    .search-container {
        flex: 1;
        max-width: 200px;
    }
    
    .search-icon {
        display: none;
    }
    
    .home-view {
        padding: var(--space-xl) var(--space-md);
    }
    
    .hero-section {
        flex-direction: column;
        text-align: center;
        gap: var(--space-xl);
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-image {
        width: 180px;
        height: 180px;
        order: -1;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .article-card {
        padding: var(--space-lg);
    }
    
    .card-title {
        font-size: 1.25rem;
    }
    
    .back-button {
        left: var(--space-md);
    }
    
    .article-content {
        padding: var(--space-3xl) var(--space-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

/* ========================================
   Utilities
   ======================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Content match snippet in search results */
.card-content-match {
    position: relative;
    font-size: 0.8125rem;
    font-style: italic;
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: var(--space-sm) var(--space-md);
    border-radius: 6px;
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

/* Pagefind highlights matches with <mark> */
.card-content-match mark {
    background: var(--color-accent-soft);
    color: var(--color-accent);
    padding: 1px 4px;
    border-radius: 3px;
}

/* Article loading state */
.article-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--article-text-muted);
}

.loading-spinner {
    font-size: 3rem;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-md);
}

/* Article error state */
.article-error {
    text-align: center;
    padding: var(--space-4xl);
    color: var(--article-text-muted);
}

.article-error h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--article-text);
    margin-bottom: var(--space-md);
}

.article-error button {
    margin-top: var(--space-xl);
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-white);
    background: var(--color-accent);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.article-error button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.responsive-iframe {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 ratio → 9 ÷ 16 = 0.5625 = 56.25% */
}

.responsive-iframe iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.admonition {
      margin: 1.8em 0;
      padding: 1.1em 1.25em;
      border-left: 3px solid #cbd5e0; /* soft gray-blue */
      background-color: #f8fafc; /* very light, warm gray */
      font-size: 0.96em;
      border-radius: 0 2px 2px 0;
    }

    .admonition-title {
      font-weight: 600;
      margin: 0 0 0.5em;
      color: #4a5568;
      font-size: 0.94em;
      text-transform: uppercase;
      letter-spacing: 0.03em;
    }

    .admonition p {
      margin: 0.6em 0;
      color: #4a5568;
    }

    /* ——— Color accents (very muted) ——— */
    .note .admonition-title { color: #2b6cb0; }
    .note { border-left-color: #90cdf4; }

    .tip .admonition-title { color: #38a169; }
    .tip { border-left-color: #9ae6b4; }

    .warning .admonition-title { color: #dd6b20; }
    .warning { border-left-color: #fbd38d; }

    .error .admonition-title { color: #c53030; }
    .error { border-left-color: #fbb6b6; }

    /* Optional: slightly darker background on hover for interactivity */
    .admonition:hover {
      background-color: #f1f5f9;
    }

/* Article Footer & Share */
.article-footer {
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid #e4e4e7;
}

.share-section {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.share-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--article-text-muted);
}

.share-buttons {
    display: flex;
    gap: var(--space-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #f4f4f5;
    color: var(--article-text-muted);
    transition: all var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-2px);
}

.share-facebook:hover {
    background: #1877f2;
    color: white;
}

.share-x:hover {
    background: #000;
    color: white;
}

.share-vk:hover {
    background: #0077ff;
    color: white;
}

.share-generic:hover {
    background: var(--color-accent);
    color: white;
}

.article-body ul, .article-body ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-body li {
    margin-bottom: var(--space-sm);
}