:root {
  --bg: #07070c;
  --bg-raised: #0d0d15;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eaf0f6;
  --text-dim: #8a8ca3;
  --accent: #2cc6ff;
  --accent-dim: #1c7fa3;
  --ok: #48d283;
  --wip: #f3c65b;
  --flag: #54a9ff;
  --font: 'JetBrains Mono', ui-monospace, 'SF Mono', 'Cascadia Code', Menlo, Consolas, 'Liberation Mono', monospace;
  --max-width: 860px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  background: rgba(11, 15, 14, 0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.brand {
  color: var(--accent);
  font-weight: 700;
}
.brand:hover { text-decoration: none; }

.site-header nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}
.site-header nav a { color: var(--text-dim); }
.site-header nav a:hover { color: var(--accent); }
.nav-external { color: var(--accent) !important; }

.nav-toggle-checkbox { display: none; }
.nav-toggle-label {
  display: none;
  margin-left: auto;
  color: var(--accent);
  font-size: 1rem;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
}

@media (max-width: 640px) {
  .nav-toggle-label { display: block; }
  .site-header nav {
    display: none;
    flex-direction: column;
    width: 100%;
    order: 3;
    gap: 0.9rem;
    padding-top: 0.75rem;
  }
  .nav-toggle-checkbox:checked ~ nav { display: flex; }
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type { border-bottom: none; }

.eyebrow {
  color: var(--accent-dim);
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}

h1, h2, h3 {
  color: var(--text);
  line-height: 1.25;
  margin: 0 0 1rem;
}

h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h2 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
h3 { font-size: 1.05rem; }

.subhead, .lead {
  color: var(--text-dim);
  max-width: 640px;
}

.lead-out {
  color: var(--text-dim);
  margin-top: 1.5rem;
}

/* hero */

.hero { padding-top: 3.5rem; }

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 1.1rem;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--accent);
  box-shadow: 0 0 12px rgba(44, 198, 255, 0.18);
}

.btn-primary {
  background: var(--accent);
  color: #051016;
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover { color: #051016; opacity: 0.9; }

/* case studies */

.case-study {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.case-study:first-of-type { margin-top: 2rem; padding-top: 0; border-top: none; }
.case-study h3 { font-size: clamp(1.2rem, 2.6vw, 1.6rem); }

.stat-row {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.stat { display: flex; flex-direction: column; }
.stat-num { color: var(--accent); font-size: 1.8rem; font-weight: 700; }
.stat-label { color: var(--text-dim); font-size: 0.85rem; }

.log-excerpt {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.6rem;
  margin: 1.5rem 0;
}
.log-excerpt p {
  margin: 0.9rem 0;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.log-excerpt p:first-child { margin-top: 0; }

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  margin-right: 0.4rem;
}
.tag-ok { background: rgba(72, 210, 131, 0.15); color: var(--ok); }
.tag-wip { background: rgba(243, 198, 91, 0.15); color: var(--wip); }
.tag-flag { background: rgba(84, 169, 255, 0.15); color: var(--flag); }

/* work grid */

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  display: block;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.6rem;
  color: var(--text);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35), 0 0 14px rgba(44, 198, 255, 0.14);
}
.card h3 { color: var(--accent); }
.card p { color: var(--text-dim); font-size: 0.88rem; margin: 0; }

.card-featured { padding: 1.4rem 1.5rem; }
.card-featured p { font-size: 0.92rem; }

@media (prefers-reduced-motion: reduce) {
  .card:hover { transform: none; }
}

.work-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.work-list li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.65rem 0.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  flex-wrap: wrap;
}
.work-list li::before {
  content: ">";
  color: var(--accent-dim);
}
.work-list a { white-space: nowrap; }
.work-list span { color: var(--text-dim); }

.work .cta-row { margin-top: 2rem; }

/* about */

.about p { max-width: 680px; color: var(--text-dim); }
.about a { color: var(--accent); }

/* footer */

.site-footer {
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
}
.site-footer p { margin: 0.3rem 0; }