:root {
  --bg: #0b0f14;
  --surface: #12181f;
  --surface-2: #171f28;
  --border: #232c37;
  --text: #cdd6e0;
  --muted: #7c8896;
  --accent: #4fd1c5;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.brand span { color: var(--accent); }
.brand:hover { text-decoration: none; }

.site-header nav { display: flex; align-items: center; gap: 18px; }
.site-header nav a {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
}
.site-header nav a:hover { color: var(--accent); text-decoration: none; }
.site-header nav svg { width: 20px; height: 20px; }

.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;
}

/* Hero */
.hero {
  padding: 72px 0 48px;
}

.eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.25;
  margin: 0 0 16px;
  max-width: 18ch;
}

.hero p.lead {
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.05rem;
  margin: 0;
}

/* Section headings */
.section-heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 24px;
}

.section-heading h2 {
  font-size: 1.3rem;
  margin: 0;
}

.section-heading .count {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 0.85rem;
}

section.projects { padding: 24px 0 16px; }

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 18px;
}

.card {
  --accent: #4fd1c5;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  border-radius: 12px 12px 0 0;
  background: var(--accent);
  opacity: 0.85;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 10px 28px -14px var(--accent);
}

.card-icon {
  width: 48px;
  height: 48px;
}
.card-icon img { width: 100%; height: 100%; display: block; }

.card h3 {
  margin: 4px 0 0;
  font-size: 1.08rem;
}

.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); text-decoration: none; }

.card .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

.card p.desc {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
  flex: 1;
}

.card .card-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  padding-right: 26px;
}

.card-github {
  position: absolute;
  right: 16px;
  bottom: 18px;
  width: 18px;
  height: 18px;
  background-color: var(--muted);
  -webkit-mask: url("../icons/github.svg") no-repeat center / contain;
  mask: url("../icons/github.svg") no-repeat center / contain;
  opacity: 0.7;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.card-github:hover {
  background-color: var(--accent);
  opacity: 1;
}

/* More projects */
.archive {
  padding: 40px 0 8px;
}

.archive-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.archive-list li { color: var(--muted); }
.archive-list a { color: var(--text); }
.archive-list a:hover { color: var(--accent); }

/* Footer */
.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--border);
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

@media (max-width: 560px) {
  .site-header nav { gap: 14px; }
  .hero { padding: 48px 0 32px; }
}