:root {
  --radius: 0.25rem;
  --background: oklch(0.16 0.008 260);
  --foreground: oklch(0.93 0.01 150);
  --card: oklch(0.2 0.01 260);
  --primary: oklch(0.83 0.19 145);
  --primary-foreground: oklch(0.16 0.008 260);
  --muted-foreground: oklch(0.66 0.015 250);
  --critical: oklch(0.65 0.23 22);
  --border: oklch(0.3 0.012 260);
  --grid-line: oklch(0.24 0.012 260);
  --glow-primary: 0 0 0 1px color-mix(in oklab, var(--primary) 35%, transparent),
    0 0 40px -12px color-mix(in oklab, var(--primary) 60%, transparent);
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-sans: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  border-color: var(--border);
}

body {
  margin: 0;
  background-color: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  line-height: 1.6;
}

::selection {
  background: color-mix(in oklab, var(--primary) 30%, transparent);
}

a {
  color: inherit;
}

.wrap {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin: 0;
}

/* header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.brand {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

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

.site-header nav {
  display: flex;
  gap: 1.5rem;
}

.site-header nav a {
  text-decoration: none;
  transition: color 0.2s;
}

.site-header nav a:hover {
  color: var(--primary);
}

/* hero */
.hero {
  display: grid;
  gap: 3rem;
  padding: 5rem 0;
}

@media (min-width: 768px) {
  .hero {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
  }
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 7vw, 3.75rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 1.25rem 0 0;
}

.caret {
  display: inline-block;
  width: 0.6ch;
  margin-left: 0.5rem;
  background: var(--primary);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

.lead {
  margin-top: 1.5rem;
  max-width: 36rem;
  font-size: 1.125rem;
  color: var(--muted-foreground);
}

.lead .mono {
  font-family: var(--font-mono);
  color: var(--foreground);
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.badges span {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.375rem 0.75rem;
  color: var(--muted-foreground);
}

.badges .critical {
  border-color: color-mix(in oklab, var(--critical) 50%, transparent);
  color: var(--critical);
}

.hero img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  object-fit: cover;
  filter: grayscale(1);
}

/* cards */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
}

@media (min-width: 768px) {
  .card {
    padding: 2.5rem;
  }
}

.glow {
  box-shadow: var(--glow-primary);
}

.card h2 {
  font-family: var(--font-mono);
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 1rem 0 0;
}

.card p {
  max-width: 42rem;
  color: var(--muted-foreground);
}

.facts {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0 0;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  font-family: var(--font-mono);
}

@media (min-width: 640px) {
  .facts {
    grid-template-columns: repeat(3, 1fr);
  }
}

.facts dd {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
}

/* grids */
.section {
  padding: 5rem 0 0;
}

.tiles {
  display: grid;
  gap: 1px;
  margin-top: 2rem;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 768px) {
  .tiles {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tile {
  background: var(--card);
  padding: 1.5rem;
}

.tile .k {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
}

.tile h3 {
  margin: 0.75rem 0 0;
  font-size: 1.125rem;
}

.tile p {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* timeline */
.timeline-section {
  border-top: 1px solid var(--border);
  padding-top: 3rem;
  margin-top: 5rem;
}

.timeline {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.timeline li {
  background: var(--card);
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .timeline li {
    grid-template-columns: 6rem 1fr 7rem;
    align-items: start;
  }
  .timeline .tag {
    text-align: right;
  }
}

.timeline .year {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--primary);
}

.timeline h3 {
  margin: 0;
  font-size: 1rem;
}

.timeline p {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* contact */
.contact {
  margin-top: 5rem;
  border: 1px solid var(--border);
}

.contact h2 {
  font-size: 1.5rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.btn {
  background: var(--primary);
  color: var(--primary-foreground);
  border: 0;
  border-radius: var(--radius);
  padding: 0.625rem 1rem;
  font: inherit;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
}

.pgp {
  color: var(--muted-foreground);
}

.copied {
  color: var(--primary);
}

.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}