/* ============================================
   Cooper Yang Portfolio — Terminal Theme
   ============================================
   z-index stack: noise=9998, scanlines=9999, lightbox=10000
   ============================================ */

/* Fonts loaded via <link> in HTML head for non-blocking render */

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

:root {
  --bg: #0a0a0a;
  --bg-terminal: #0d0d0d;
  --bg-panel: #111111;
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-muted: #00aa2a;
  --green-dark: #004d15;
  --green-glow: rgba(0, 255, 65, 0.08);
  --green-glow-strong: rgba(0, 255, 65, 0.15);
  --amber: #ffb000;
  --cyan: #00e5ff;
  --red: #ff3333;
  --text: #b0b0b0;
  --text-bright: #d4d4d4;
  --text-dim: #888888;
  --border: #1a1a1a;
  --border-green: #003d10;
  --sidebar-width: 260px;
  --content-max: 1100px;
  --font: 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

/* Scanline overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.03) 0px,
    rgba(0, 0, 0, 0.03) 1px,
    transparent 1px,
    transparent 3px
  );
}

::selection {
  background: var(--green);
  color: #000;
}

a {
  color: var(--green-dim);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--green);
  text-shadow: 0 0 8px var(--green-glow-strong);
}

/* Focus indicators */
a:focus-visible,
button:focus-visible {
  outline: 1px solid var(--green);
  outline-offset: 2px;
}

.project-card:focus-visible {
  border-color: var(--green);
  box-shadow: 0 0 0 2px var(--green-glow-strong);
  outline: none;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 100;
  border-right: 1px solid var(--border-green);
  background: var(--bg);
  overflow-y: auto;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: var(--bg); }
.sidebar::-webkit-scrollbar-thumb { background: var(--green-dark); }
.sidebar::-webkit-scrollbar-thumb:hover { background: var(--green-muted); }

.sidebar .name {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 2px;
}

.sidebar .name a {
  color: var(--green);
  text-shadow: 0 0 10px var(--green-glow-strong);
}

.sidebar .name a:hover {
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

.sidebar .titles {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 28px;
}

.sidebar .titles::before {
  content: '// ';
  color: var(--green-dark);
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sidebar nav a {
  font-size: 12px;
  color: var(--text-dim);
  padding: 8px 10px;
  min-height: 36px;
  display: flex;
  align-items: center;
  border-radius: 2px;
  transition: color var(--transition), background var(--transition);
  font-weight: 400;
}

.sidebar nav a::before {
  content: '> ';
  color: var(--green-dark);
  transition: color var(--transition);
}

.sidebar nav a:hover {
  color: var(--green);
  background: var(--green-glow);
}

.sidebar nav a:hover::before {
  color: var(--green);
}

.sidebar nav a.active {
  color: var(--green);
  background: var(--green-glow);
}

.sidebar nav a.active::before {
  color: var(--green);
  content: '$ ';
}

.sidebar .nav-divider {
  height: 1px;
  background: var(--border-green);
  margin: 8px 0;
  border: none;
}

.sidebar-bottom {
  font-size: 10px;
  color: var(--text-dim);
  padding-top: 16px;
  border-top: 1px solid var(--border-green);
}

.sidebar-bottom::before {
  content: '// ';
  color: var(--green-dark);
}

/* ============================================
   Mobile
   ============================================ */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 48px;
  background: var(--bg);
  border-bottom: 1px solid var(--border-green);
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
  z-index: 200;
}

.mobile-header .name {
  font-size: 14px;
  font-weight: 700;
}

.mobile-header .name a {
  color: var(--green);
  text-shadow: 0 0 10px var(--green-glow-strong);
}

.hamburger {
  background: none;
  border: 1px solid var(--border-green);
  color: var(--green);
  font-size: 16px;
  cursor: pointer;
  padding: 8px 12px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  transition: background var(--transition), border-color var(--transition);
}

.hamburger:hover {
  background: var(--green-glow);
  border-color: var(--green-dark);
}

.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.96);
  z-index: 300;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.mobile-nav-overlay.open { display: flex; }

.mobile-nav-overlay a {
  font-size: 16px;
  color: var(--text-dim);
  padding: 12px 24px;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-family: var(--font);
}

.mobile-nav-overlay a::before {
  content: '> ';
  color: var(--green-dark);
}

.mobile-nav-overlay a:hover {
  color: var(--green);
}

.mobile-nav-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none;
  border: 1px solid var(--border-green);
  color: var(--green);
  font-size: 18px;
  cursor: pointer;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  transition: background var(--transition), border-color var(--transition);
}

.mobile-nav-close:hover {
  background: var(--green-glow);
  border-color: var(--green-dark);
}

/* ============================================
   Main
   ============================================ */
.main {
  margin-left: var(--sidebar-width);
  padding: 32px 40px;
  min-height: 100vh;
}

/* ============================================
   Terminal Window Frame
   ============================================ */
.terminal-window {
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  overflow: hidden;
  margin-bottom: 24px;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-green);
  font-size: 11px;
  color: var(--text-dim);
}

.terminal-bar .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.terminal-bar .dot.red { background: var(--red); opacity: 0.7; }
.terminal-bar .dot.amber { background: var(--amber); opacity: 0.7; }
.terminal-bar .dot.green { background: var(--green-dim); opacity: 0.7; }

.terminal-bar .title {
  margin-left: 8px;
  color: var(--text-dim);
  font-size: 10px;
}

.terminal-body {
  padding: 16px;
}

/* ============================================
   Project Grid
   ============================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr));
  gap: 20px;
}

.project-card {
  display: block;
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  border-color: var(--green-dark);
  box-shadow: 0 0 30px var(--green-glow), inset 0 0 30px var(--green-glow);
}

.project-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.9);
  transition: filter 0.4s ease;
}

.project-card:hover img {
  filter: saturate(1) brightness(1);
}

.project-card .card-info {
  padding: 12px 14px 14px;
  border-top: 1px solid var(--border-green);
}

.project-card .card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 2px;
}

.project-card .card-role {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.project-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--green-muted);
  background: transparent;
  border: 1px solid var(--border-green);
  padding: 3px 8px;
  min-height: 22px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.project-card:hover .tag {
  border-color: var(--green-dark);
  color: var(--green-dim);
}

/* ============================================
   Two-Column Content Rows
   ============================================ */
.content-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 24px;
  align-items: start;
}

.content-row.full {
  grid-template-columns: 1fr;
}

.content-row .col p {
  font-size: 13px;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 10px;
}

.content-row .col strong {
  color: var(--green-dim);
  font-weight: 600;
}

.content-row .col u {
  text-decoration-color: var(--green-dark);
  text-underline-offset: 3px;
}

.content-row .col em {
  color: var(--text-dim);
}

.content-row .col small {
  color: var(--text-dim);
  font-size: 11px;
}

.content-row .col .video-embed { margin: 0; }

.content-row .col img {
  width: 100%;
  border: 1px solid var(--border-green);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.content-row .col img:hover {
  border-color: var(--green-dark);
  box-shadow: 0 0 20px var(--green-glow);
}

/* ============================================
   Image Gallery
   ============================================ */
.image-gallery {
  display: grid;
  gap: 10px;
  margin-bottom: 8px;
}

.image-gallery.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.image-gallery img {
  width: 100%;
  border: 1px solid var(--border-green);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.image-gallery img:hover {
  border-color: var(--green-dark);
  box-shadow: 0 0 20px var(--green-glow);
}

/* ============================================
   Section Dividers
   ============================================ */
.section-divider {
  border: none;
  border-top: 1px solid var(--border-green);
  margin: 36px 0 12px;
  position: relative;
}

/* ============================================
   YouTube Embeds
   ============================================ */
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 20px 0;
  border: 1px solid var(--border-green);
  background: #000;
}

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

/* ============================================
   Captions
   ============================================ */
.media-caption {
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 6px;
  text-align: center;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.media-caption::before {
  content: '// ';
  color: var(--green-dark);
}

/* ============================================
   Project Content
   ============================================ */
.project-content {
  max-width: var(--content-max);
}

.project-content h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--green);
  margin: 8px 0 14px;
  letter-spacing: -0.2px;
  text-shadow: 0 0 20px var(--green-glow);
}

.project-content h1::before {
  content: '# ';
  color: var(--green-dark);
  font-weight: 400;
}

.project-content h1 a {
  color: var(--green);
}

.project-content h1 a:hover {
  text-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

.project-content h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--green);
  margin: 8px 0 14px;
  letter-spacing: -0.2px;
  text-shadow: 0 0 20px var(--green-glow);
}

.project-content h2::before {
  content: '## ';
  color: var(--green-dark);
  font-weight: 400;
}

.project-content h2 a {
  color: var(--green);
}

.project-content h2 a:hover {
  text-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

.project-content h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--green-dim);
  margin: 24px 0 10px;
}

.project-content h3::before {
  content: '### ';
  color: var(--green-dark);
  font-weight: 400;
}

.project-content p {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.75;
}

.project-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}

.project-content ul li {
  font-size: 13px;
  color: var(--text);
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
  line-height: 1.7;
}

.project-content ul li::before {
  content: '>';
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--green-dark);
  font-weight: 700;
}

.project-content ul li strong {
  color: var(--green-dim);
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-green);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 6px;
  text-shadow: 0 0 30px var(--green-glow-strong);
}

.page-role {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.page-date {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.page-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 12px;
}

.page-link {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--green);
  border: 1px solid var(--green-dark);
  padding: 6px 14px;
  min-height: 32px;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.page-link:hover {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 15px var(--green-glow-strong);
}

/* ============================================
   About Page
   ============================================ */
.about-content {
  max-width: 640px;
}

.about-content .portrait {
  width: 200px;
  margin-bottom: 24px;
  border: 1px solid var(--border-green);
  filter: saturate(0.85);
  transition: filter 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.about-content .portrait:hover {
  filter: saturate(1);
  border-color: var(--green-dark);
  box-shadow: 0 0 30px var(--green-glow);
}

.about-content p {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.85;
}

/* ============================================
   Audio
   ============================================ */
audio {
  width: 100%;
  height: 36px;
  margin: 4px 0;
  filter: invert(1) hue-rotate(100deg) saturate(2);
}

/* ============================================
   Code Block (Terminal Style)
   ============================================ */
.code-block {
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  overflow: hidden;
  margin: 16px 0;
}

.code-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-green);
  font-size: 10px;
  color: var(--text-dim);
}

.code-block-header .dots {
  display: flex;
  gap: 5px;
}

.code-block-header .dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.code-block-header .dots span:nth-child(1) { background: var(--red); opacity: 0.7; }
.code-block-header .dots span:nth-child(2) { background: var(--amber); opacity: 0.7; }
.code-block-header .dots span:nth-child(3) { background: var(--green-dim); opacity: 0.7; }

.code-block-header .filename {
  margin-left: 6px;
  color: var(--green-muted);
  letter-spacing: 0.5px;
}

.code-block-body {
  overflow-x: auto;
  padding: 0;
}

.code-block-body::-webkit-scrollbar { height: 4px; }
.code-block-body::-webkit-scrollbar-track { background: var(--bg-terminal); }
.code-block-body::-webkit-scrollbar-thumb { background: var(--green-dark); }

.code-block-body table {
  border-collapse: collapse;
  width: 100%;
  font-size: 11px;
  line-height: 1.55;
  font-family: var(--font);
}

.code-block-body td {
  padding: 0;
  vertical-align: top;
  white-space: pre;
}

.code-block-body .line-num {
  width: 44px;
  min-width: 44px;
  padding: 0 10px 0 12px;
  text-align: right;
  color: var(--border-green);
  user-select: none;
  border-right: 1px solid var(--border-green);
}

.code-block-body .line-code {
  padding: 0 14px;
  color: var(--text);
}

.code-block-body tr:first-child td { padding-top: 12px; }
.code-block-body tr:last-child td { padding-bottom: 12px; }

/* Syntax highlighting */
.code-block-body .kw { color: var(--green); }          /* keywords */
.code-block-body .typ { color: var(--cyan); }          /* types */
.code-block-body .str { color: var(--amber); }         /* strings */
.code-block-body .cmt { color: #555; font-style: italic; } /* comments */
.code-block-body .num { color: #cc77ff; }              /* numbers */
.code-block-body .fn { color: var(--green-dim); }      /* function names */

.code-block-footer {
  padding: 6px 14px;
  border-top: 1px solid var(--border-green);
  background: var(--bg-panel);
  font-size: 9px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}

/* Collapsed code block */
.code-block.collapsed .code-block-body {
  max-height: 320px;
  overflow-y: hidden;
  position: relative;
}

.code-block.collapsed .code-block-body::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--bg-terminal));
  pointer-events: none;
}

.code-expand-btn {
  display: block;
  width: 100%;
  padding: 8px;
  background: var(--bg-panel);
  border: none;
  border-top: 1px solid var(--border-green);
  color: var(--green-muted);
  font-family: var(--font);
  font-size: 10px;
  cursor: pointer;
  text-align: center;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color var(--transition), background var(--transition);
}

.code-expand-btn:hover {
  color: var(--green);
  background: var(--green-glow);
}

/* ============================================
   Hero Card (Project Header)
   ============================================ */
.hero-card {
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.hero-card h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 6px;
  text-shadow: 0 0 20px var(--green-glow);
}

.hero-card h1::before {
  content: '# ';
  color: var(--green-dark);
  font-weight: 400;
}

.hero-card h1 a { color: var(--green); }
.hero-card h1 a:hover { text-shadow: 0 0 15px rgba(0,255,65,0.3); }

.hero-meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 12px;
  line-height: 1.6;
}

.hero-meta .role { color: var(--text); }
.hero-meta .date::before { content: ' // '; color: var(--green-dark); }

.hero-desc {
  font-size: 12px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 14px;
}

.hero-desc em { color: var(--text-dim); }

.hero-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================
   Contributions Block
   ============================================ */
.contrib-block {
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  margin: 32px 0;
}

.contrib-header {
  padding: 10px 16px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-green);
  font-size: 11px;
  font-weight: 600;
  color: var(--green-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contrib-header::before {
  content: '$ cat ';
  color: var(--green-dark);
  font-weight: 400;
}

.contrib-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contrib-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-green);
  font-size: 12px;
  color: var(--text);
  line-height: 1.65;
}

.contrib-list li:last-child { border-bottom: none; }

.contrib-list .num {
  font-size: 10px;
  color: var(--green-dark);
  font-weight: 700;
  min-width: 20px;
  flex-shrink: 0;
}

.contrib-list li strong { color: var(--green-dim); }

/* ============================================
   Timeline (Design Process Pages)
   ============================================ */
.timeline {
  position: relative;
  padding-left: 32px;
  margin: 24px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-green);
}

.timeline-step {
  position: relative;
  margin-bottom: 32px;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--green-dark);
  border: 1px solid var(--green-muted);
}

.timeline-step.active::before {
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow-strong);
}

.timeline-step .step-label {
  font-size: 10px;
  color: var(--green-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.timeline-step .step-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.timeline-step .step-content.full {
  grid-template-columns: 1fr;
}

.timeline-step .step-content img {
  width: 100%;
  border: 1px solid var(--border-green);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.timeline-step .step-content img:hover {
  border-color: var(--green-dark);
  box-shadow: 0 0 20px var(--green-glow);
}

.timeline-step .step-content p {
  font-size: 12px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 8px;
}

.timeline-step .step-content strong {
  color: var(--green-dim);
}

/* ============================================
   Mini Card Grid (Pico-8 Collection)
   ============================================ */
.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: 16px;
  margin: 24px 0;
}

.mini-card {
  border: 1px solid var(--border-green);
  background: var(--bg-terminal);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.mini-card:hover {
  border-color: var(--green-dark);
  box-shadow: 0 0 20px var(--green-glow);
}

.mini-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.mini-card-body {
  padding: 12px 14px;
  border-top: 1px solid var(--border-green);
}

.mini-card-body h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 6px;
}

.mini-card-body h3::before {
  content: '> ';
  color: var(--green-dark);
}

.mini-card-body p {
  font-size: 11px;
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 8px;
}

.mini-card-body .page-link {
  font-size: 10px;
  padding: 4px 10px;
  min-height: 24px;
}

/* ============================================
   Section Block (replaces plain section-divider + h2)
   ============================================ */
.section-block {
  margin: 40px 0 20px;
  padding: 10px 0;
  border-top: 1px solid var(--border-green);
}

.section-block h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 20px var(--green-glow);
  margin: 0;
}

.section-block h2::before {
  content: '## ';
  color: var(--green-dark);
  font-weight: 400;
}

/* ============================================
   Next Project
   ============================================ */
.next-project {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border-green);
  display: flex;
  justify-content: flex-end;
}

.next-project a {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  min-height: 44px;
  border: 1px solid var(--border-green);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  font-family: var(--font);
}

.next-project a::before {
  content: 'cd ';
  color: var(--green-dark);
}

.next-project a:hover {
  color: var(--green);
  border-color: var(--green-dark);
  background: var(--green-glow);
}

.next-project .arrow {
  font-size: 14px;
  transition: transform var(--transition);
}

.next-project a:hover .arrow {
  transform: translateX(4px);
}

/* ============================================
   Section Title
   ============================================ */
.section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--green-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.section-title::before {
  content: '$ ls ';
  color: var(--green-dark);
}

/* ============================================
   Blinking Cursor
   ============================================ */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.cursor::after {
  content: '_';
  color: var(--green);
  animation: blink 1s infinite;
  font-weight: 400;
}

/* ============================================
   Scroll Reveal
   ============================================ */
.reveal-ready {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-ready.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Custom Scrollbar
   ============================================ */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dark); }
::-webkit-scrollbar-thumb:hover { background: var(--green-muted); }

/* ============================================
   Screen Reader Only
   ============================================ */
/* Utility */
.mt-12 { margin-top: 12px; }
.text-center { text-align: center; }

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .main {
    margin-left: 0;
    padding: 64px 16px 32px;
  }
  .project-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .content-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .image-gallery.cols-2 {
    grid-template-columns: 1fr;
  }
  .project-content .media-row {
    grid-template-columns: 1fr;
  }
  body { font-size: 12px; }
  .timeline-step .step-content { grid-template-columns: 1fr; }
  .mini-grid { grid-template-columns: 1fr; }
  .hero-card { padding: 16px; }
}

@media (min-width: 901px) and (max-width: 1200px) {
  .project-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }
  .main { padding: 32px 28px; }
}