:root {
  --bg: #080a09;
  --bg-elev: #101412;
  --bg-soft: #161b18;
  --line: rgba(125, 255, 179, 0.12);
  --line-strong: rgba(230, 228, 220, 0.12);
  --text: #e8e6dc;
  --muted: #8b928c;
  --dim: #5e6660;
  --accent: #7dffb3;
  --accent-dim: rgba(125, 255, 179, 0.14);
  --warn: #e8c547;
  --link: #9ad4ff;
  --mono: "IBM Plex Mono", "Noto Sans SC", ui-monospace, monospace;
  --sans: "IBM Plex Sans", "Noto Sans SC", system-ui, sans-serif;
  --max: 1080px;
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  letter-spacing: 0.01em;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(125, 255, 179, 0.03), transparent 28%),
    radial-gradient(1200px 500px at 80% -10%, rgba(125, 255, 179, 0.06), transparent 55%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(255, 255, 255, 0.012) 4px
    );
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover { text-decoration: underline; text-underline-offset: 3px; }

.shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 10, 9, 0.78);
  backdrop-filter: blur(14px);
}

.brand {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  text-shadow: 0 0 18px rgba(125, 255, 179, 0.28);
  letter-spacing: 0.04em;
}

.brand:hover { text-decoration: none; color: var(--text); }

.brand span { color: var(--muted); }

nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12px;
}

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

nav a:hover,
nav a.is-active { color: var(--text); text-decoration: none; }

.kbd {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  border: 1px solid var(--line-strong);
  padding: 3px 7px;
  border-radius: 6px;
  background: var(--bg-elev);
  cursor: pointer;
}

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 96px;
  flex: 1;
}

.kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

h1, h2, h3 { font-weight: 500; letter-spacing: -0.03em; }

h1 {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 0.95;
  margin: 0 0 18px;
}

h1 .cursor {
  display: inline-block;
  width: 0.48em;
  height: 0.82em;
  margin-left: 4px;
  background: var(--accent);
  vertical-align: -0.04em;
  animation: blink 1.05s steps(1) infinite;
  box-shadow: 0 0 16px rgba(125, 255, 179, 0.45);
}

@keyframes blink {
  50% { opacity: 0; }
}

.lede {
  max-width: 42rem;
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 36px;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: start;
}

.term {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
}

.dot { width: 8px; height: 8px; border-radius: 50%; background: #3a403c; }
.dot.g { background: #3dff9a; }
.dot.y { background: #e8c547; }
.dot.r { background: #ff6b6b; }

.term-body {
  padding: 18px 18px 22px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  min-height: 240px;
  color: #cfd6d0;
}

.prompt { color: var(--accent); }
.cmd { color: var(--text); }
.out { color: var(--muted); white-space: pre-wrap; }
.ok { color: var(--accent); }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.stat {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: 10px;
  padding: 16px 18px;
}

.stat b {
  display: block;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--text);
}

.stat span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section { margin-top: 84px; }

.section h2 {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.card, .post {
  display: block;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover, .post:hover {
  border-color: rgba(125, 255, 179, 0.4);
  transform: translateY(-2px);
  text-decoration: none;
}

.meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.06em;
  margin: 0 0 10px;
}

.card h3, .post h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p, .post p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 3px 8px;
  border-radius: 999px;
}

.status {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding: 8px 28px;
  font-family: var(--mono);
  font-size: 11px;
  color: #0a0d0c;
  background: var(--accent);
}

.status span { opacity: 0.8; }
.status b { font-weight: 600; }

.beian {
  margin: 0;
  padding: 10px 28px 14px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim);
  background: #050706;
  border-top: 1px solid var(--line);
}

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

.beian a:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article {
  max-width: 680px;
  margin: 0 auto;
}

.article h1 {
  font-size: clamp(28px, 5vw, 44px);
  margin-bottom: 12px;
}

.article .lede { margin-bottom: 40px; }

.article p { font-size: 16.5px; color: #d5d3c9; }

.article h2 {
  font-size: 20px;
  margin: 40px 0 12px;
}

.article pre,
.article code {
  font-family: var(--mono);
}

.article pre {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 16px 18px;
  border-radius: 10px;
  overflow: auto;
  font-size: 13px;
  color: #cfd6d0;
}

.article hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

.back {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.list { display: grid; gap: 12px; }

.palette {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  place-items: start center;
  padding-top: 14vh;
  background: rgba(0, 0, 0, 0.55);
}

.palette.open { display: grid; }

.palette-box {
  width: min(520px, calc(100% - 32px));
  background: #121614;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.palette-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.palette-box a {
  display: flex;
  justify-content: space-between;
  padding: 12px 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
}

.palette-box a:hover,
.palette-box a.active {
  background: var(--accent-dim);
  color: var(--text);
}

.about-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 36px;
  align-items: start;
}

.avatar {
  width: 160px;
  height: 160px;
  border-radius: 16px;
  border: 1px solid var(--line);
  object-fit: cover;
  filter: grayscale(0.25) contrast(1.05);
}

.dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px 16px;
  font-size: 14px;
}

.dl dt {
  font-family: var(--mono);
  color: var(--dim);
  font-size: 12px;
}

.dl dd { margin: 0; color: var(--text); }

@media (max-width: 860px) {
  .hero, .cards, .about-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  nav { gap: 12px; }
  .wrap { width: min(var(--max), calc(100% - 32px)); padding-top: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  h1 .cursor { animation: none; }
  .card:hover, .post:hover { transform: none; }
}