:root {
  color-scheme: dark;
  --bg: #080b12;
  --bg-elevated: rgba(14, 19, 32, 0.82);
  --bg-soft: rgba(16, 25, 40, 0.72);
  --line: rgba(135, 164, 255, 0.18);
  --line-strong: rgba(135, 164, 255, 0.32);
  --text: #e8edf7;
  --text-soft: #a7b3c9;
  --accent: #84f5c6;
  --accent-strong: #7aa2ff;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 999px;
  --container: min(1120px, calc(100vw - 48px));
  --font-sans: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top right, rgba(122, 162, 255, 0.12), transparent 26%),
    radial-gradient(circle at bottom left, rgba(132, 245, 198, 0.08), transparent 28%),
    var(--bg);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 92%);
}

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

button,
a {
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease,
    color 180ms ease, box-shadow 180ms ease;
}

button {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--accent);
  color: #04110c;
  z-index: 20;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(8, 11, 18, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  color: var(--accent);
}

.brand-text,
.nav-links a,
.lang-toggle {
  font-size: 0.95rem;
}

.nav-links {
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-soft);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  cursor: pointer;
}

.lang-toggle:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.lang-state {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(132, 245, 198, 0.12);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.section {
  padding: 96px 0;
}

.section-border {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero {
  padding-top: 88px;
}

.hero-grid,
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.9fr);
  gap: 32px;
  align-items: start;
}

.eyebrow,
.section-kicker,
.panel-label,
.card-index {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
dd,
dt {
  margin: 0;
}

h1 {
  max-width: 13ch;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero-copy,
.section-copy,
.about-copy-block p,
.post-card p {
  color: var(--text-soft);
  font-size: 1.04rem;
  line-height: 1.8;
}

.hero-copy {
  max-width: 62ch;
  margin-top: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

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

.button-primary {
  background: linear-gradient(135deg, rgba(132, 245, 198, 0.18), rgba(122, 162, 255, 0.18));
  border-color: rgba(132, 245, 198, 0.2);
  box-shadow: var(--shadow);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--line);
  color: var(--text-soft);
}

.button-secondary:hover {
  color: var(--text);
}

.hero-panel,
.post-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.hero-panel::after,
.post-card::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.snapshot-list {
  display: grid;
  gap: 20px;
}

.snapshot-list div {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.snapshot-list dt {
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.snapshot-list dd {
  font-family: var(--font-mono);
  line-height: 1.7;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.04em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.post-card {
  display: grid;
  gap: 18px;
  min-height: 100%;
}

.post-card h3 {
  font-size: 1.45rem;
  line-height: 1.2;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-family: var(--font-mono);
}

.card-link::after {
  content: "↗";
}

.about-copy-block {
  display: grid;
  gap: 20px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.pill {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.site-footer {
  padding: 28px 0 44px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-shell p {
  color: var(--text-soft);
}

.footer-github {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.footer-github svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .nav-shell,
  .footer-shell {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 16px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100vw - 28px, 100vw - 28px);
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    padding-top: 56px;
  }

  h1 {
    max-width: none;
  }

  .hero-panel,
  .post-card {
    padding: 22px;
  }
}