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

/* === Theme tokens === */
:root[data-theme='light'] {
  --bg: #f4f7f6;
  --bg-grad-1: rgba(0, 200, 120, 0.10);
  --bg-grad-2: rgba(0, 140, 255, 0.08);
  --bg-grad-3: rgba(120, 80, 255, 0.06);
  --grid: rgba(0, 160, 90, 0.10);
  --surface: #ffffff;
  --surface-2: rgba(255, 255, 255, 0.7);
  --border: rgba(0, 80, 50, 0.12);
  --border-strong: rgba(0, 160, 90, 0.45);
  --text: #0e1a14;
  --text-soft: #3b524a;
  --text-muted: #6f8779;
  --accent: #00a85e;
  --accent-strong: #008f4f;
  --accent-glow: rgba(0, 200, 120, 0.45);
  --accent-soft: rgba(0, 200, 120, 0.08);
  --accent-2: #0078ff;
  --warn: #d97706;
  --warn-soft: rgba(217, 119, 6, 0.10);
  --gradient-text: linear-gradient(135deg, #0e1a14 0%, #008f4f 55%, #0078ff 100%);
  --card-glow: rgba(0, 200, 120, 0.18);
  --card-shadow: 0 18px 50px -28px rgba(0, 120, 80, 0.45);
  --scan-blend: multiply;
  --scan-color: rgba(0, 200, 120, 0.04);
  --chip-bg: rgba(0, 200, 120, 0.06);
  --chip-hover-bg: rgba(0, 200, 120, 0.12);
  --hero-grad: linear-gradient(180deg, rgba(0, 200, 120, 0.05), transparent 60%);
}
:root[data-theme='dark'] {
  --bg: #06080a;
  --bg-grad-1: rgba(0, 255, 140, 0.10);
  --bg-grad-2: rgba(0, 200, 255, 0.07);
  --bg-grad-3: rgba(140, 0, 255, 0.06);
  --grid: rgba(0, 255, 140, 0.06);
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.02);
  --border: rgba(0, 255, 140, 0.14);
  --border-strong: rgba(0, 255, 140, 0.45);
  --text: #f0fff7;
  --text-soft: #c5d8cd;
  --text-muted: #6c8a7a;
  --accent: #00ff8c;
  --accent-strong: #00ff8c;
  --accent-glow: rgba(0, 255, 140, 0.55);
  --accent-soft: rgba(0, 255, 140, 0.06);
  --accent-2: #4ea7ff;
  --warn: #ffb84d;
  --warn-soft: rgba(255, 184, 77, 0.10);
  --gradient-text: linear-gradient(135deg, #ffffff 0%, #b8f5d5 40%, #00ff8c 100%);
  --card-glow: rgba(0, 255, 140, 0.18);
  --card-shadow: 0 18px 50px -28px rgba(0, 255, 140, 0.55);
  --scan-blend: screen;
  --scan-color: rgba(0, 255, 140, 0.02);
  --chip-bg: rgba(0, 255, 140, 0.04);
  --chip-hover-bg: rgba(0, 255, 140, 0.10);
  --hero-grad: linear-gradient(180deg, rgba(0, 255, 140, 0.03), transparent 60%);
}

html { background-color: var(--bg); }
body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, var(--bg-grad-1), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, var(--bg-grad-2), transparent 55%),
    radial-gradient(800px 600px at 50% 110%, var(--bg-grad-3), transparent 60%),
    var(--bg);
  min-height: 100vh;
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.35s ease, color 0.35s ease;
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, rgba(0,0,0,0.9), transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, rgba(0,0,0,0.9), transparent 75%);
  animation: gridShift 18s linear infinite;
}
@keyframes gridShift {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 56px 56px, 56px 56px; }
}

.scanline {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, var(--scan-color) 50%, transparent 100%);
  background-size: 100% 8px;
  opacity: 0.7;
  mix-blend-mode: var(--scan-blend);
}

.container {
  position: relative;
  z-index: 2;
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 24px 96px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0 32px;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  text-transform: uppercase;
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 18px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.2); opacity: 0.75; }
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 7px 11px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-soft);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.toggle:hover {
  border-color: var(--border-strong);
  color: var(--accent);
  background: var(--chip-hover-bg);
}
.toggle svg { width: 14px; height: 14px; }

/* Lang visibility */
[data-lang-en], [data-lang-zh] { display: none; }
:root[lang^='en'] [data-lang-en] { display: inline; }
:root[lang^='zh'] [data-lang-zh] { display: inline; }

/* Theme icon + label visibility */
.icon-sun, .icon-moon { display: none; align-items: center; }
.theme-label { display: none; }
:root[data-theme='light'] .icon-sun { display: inline-flex; }
:root[data-theme='light'] .theme-label-light { display: inline; }
:root[data-theme='dark'] .icon-moon { display: inline-flex; }
:root[data-theme='dark'] .theme-label-dark { display: inline; }

.hero {
  position: relative;
  padding: 56px 0 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--hero-grad);
}
.hero::before, .hero::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--border-strong);
}
.hero::before { top: -6px; left: -6px; border-right: 0; border-bottom: 0; }
.hero::after  { bottom: -6px; right: -6px; border-left: 0; border-top: 0; }

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--accent);
  display: inline-block;
}
h1.name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(48px, 9vw, 96px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin: 0 0 18px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.role {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--text-soft);
  margin-bottom: 28px;
}
.role .accent { color: var(--accent); }
.bio {
  font-size: clamp(16px, 1.5vw, 18px);
  max-width: 720px;
  color: var(--text-soft);
  margin-bottom: 36px;
}

.socials {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 9px 14px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-soft);
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.2s ease;
}
.chip:hover {
  border-color: var(--border-strong);
  background: var(--chip-hover-bg);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px -10px var(--accent-glow);
}
.chip svg { width: 14px; height: 14px; }

section.block { margin-top: 80px; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.section-head .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  margin: 6px 0 0;
  color: var(--text);
  letter-spacing: -0.02em;
}
.section-head .meta-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card {
  position: relative;
  padding: 26px 24px;
  background:
    linear-gradient(160deg, var(--accent-soft), transparent 70%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  min-height: 220px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease, background-color 0.35s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 200px at var(--mx, 50%) var(--my, 0%), var(--card-glow), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--card-shadow);
}
.card:hover::before { opacity: 1; }

.card .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--border-strong);
  color: var(--accent);
  border-radius: 999px;
  background: var(--accent-soft);
  align-self: flex-start;
}
.card .tag.live::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 1.6s ease-in-out infinite;
}
.card .tag.soon {
  color: var(--warn);
  border-color: var(--warn);
  background: var(--warn-soft);
}
.card h3 {
  font-size: 24px;
  font-weight: 600;
  margin: 16px 0 6px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.card .domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.card p {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0 0 18px;
  flex: 1;
}
.card .cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-top: auto;
}
.card .cta svg {
  width: 14px; height: 14px;
  transition: transform 0.25s ease;
}
.card:hover .cta svg { transform: translate(3px, -3px); }

.card.placeholder {
  background: repeating-linear-gradient(
    135deg,
    var(--accent-soft) 0,
    var(--accent-soft) 10px,
    transparent 10px,
    transparent 20px
  );
  border-style: dashed;
  border-color: var(--border);
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 220px;
  cursor: default;
}
.card.placeholder:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border-strong);
}
.card.placeholder .glyph {
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  color: var(--accent);
  opacity: 0.55;
  margin-bottom: 10px;
  letter-spacing: 0.1em;
}
.card.placeholder .label-soon {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.card.feature {
  grid-column: span 2;
  min-height: 260px;
  background:
    radial-gradient(700px 260px at 80% 0%, var(--card-glow), transparent 60%),
    linear-gradient(160deg, var(--accent-soft), transparent 70%),
    var(--surface);
}
@media (max-width: 720px) {
  .card.feature { grid-column: span 1; }
}

/* Solo layout — used when a section has exactly one card.
   The card stretches full-width but keeps its content readable. */
.grid.solo { grid-template-columns: 1fr; }
.grid.solo .card {
  grid-column: 1 / -1;
  min-height: 220px;
  padding: 34px 32px;
}
.grid.solo .card h3 { font-size: 30px; }
.grid.solo .card .domain,
.grid.solo .card p { max-width: 760px; }
.grid.solo .card.feature {
  background:
    radial-gradient(900px 280px at 92% 0%, var(--card-glow), transparent 55%),
    linear-gradient(135deg, var(--accent-soft), transparent 65%),
    var(--surface);
}

/* Stretched main link covers the whole card; the X badge sits above it */
.card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: 14px;
  text-indent: -9999em;
  overflow: hidden;
  white-space: nowrap;
}
.card-x {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  line-height: 1;
  color: var(--text-soft);
  text-decoration: none;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 50%;
  transition: transform 0.2s ease, color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.card-x:hover {
  color: var(--accent);
  border-color: var(--border-strong);
  background: var(--chip-hover-bg);
  transform: scale(1.08);
  box-shadow: 0 6px 18px -10px var(--accent-glow);
}

footer {
  margin-top: 96px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
}
footer a {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--border-strong);
}
footer a:hover { color: var(--accent); border-bottom-color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  .grid-bg { animation: none; }
  .dot, .card .tag.live::before { animation: none; }
  body, .card, .toggle { transition: none; }
}