/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --bg: #faf9f6;
  --ink: #16181a;
  --ink-soft: #56595e;
  --ink-faint: #8a8d92;
  --line: #e3e1da;
  --accent: #33449e;
  --accent-soft: #eceffa;
  --paper: #ffffff;

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;

  --max-w: 880px;
  --edge: clamp(24px, 6vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============================================================
   Layout shell
   ============================================================ */
.shell {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--edge);
}

header.site-head {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(6px);
  z-index: 50;
}

.site-head .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand .dot { color: var(--accent); }

nav.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

nav.primary-nav a {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
}
nav.primary-nav a:hover { color: var(--ink); text-decoration: none; }

nav.primary-nav a.is-active { color: var(--ink); }
nav.primary-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  margin: 4px auto;
}

main { display: block; }

footer.site-foot {
  border-top: 1px solid var(--line);
  margin-top: 96px;
}
footer.site-foot .shell {
  padding-top: 32px;
  padding-bottom: 40px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ============================================================
   Type helpers
   ============================================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 1px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); line-height: 1.08; font-weight: 600; }
h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }

p.lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 34ch;
}

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.section:last-of-type { border-bottom: none; }

/* ============================================================
   Hero (Home)
   ============================================================ */
.hero {
  position: relative;
  padding: 96px 0 80px;
  overflow: hidden;
}

.grid-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}

.hero .shell { position: relative; z-index: 1; }

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

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 12px 20px;
  border-radius: 6px;
  border: 1px solid var(--ink);
  color: var(--ink);
  display: inline-block;
}
.btn:hover { text-decoration: none; background: var(--ink); color: var(--paper); }

.btn.primary {
  background: var(--ink);
  color: var(--paper);
}
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }

/* ============================================================
   Project ledger (Projects page)
   ============================================================ */
.ledger { margin-top: 8px; }

.ledger-item {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 20px;
  align-items: start;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.ledger-item:first-child { border-top: none; }

.ledger-index {
  font-family: var(--font-mono);
  color: var(--ink-faint);
  font-size: 0.85rem;
  padding-top: 4px;
}

.ledger-body h3 { margin-bottom: 6px; }
.ledger-body p { color: var(--ink-soft); margin: 0 0 12px; max-width: 56ch; }

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
}

.status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 4px;
  white-space: nowrap;
  justify-self: end;
  height: fit-content;
  border: 1px solid var(--line);
  color: var(--ink-soft);
}
.status.shipped { border-color: #cfe3d3; background: #f2f8f3; color: #2e7d46; }
.status.demo    { border-color: #dfe1ee; background: #f2f3fb; color: var(--accent); }
.status.dev     { border-color: #ece3cf; background: #fbf6ea; color: #8a6a1f; }

/* ============================================================
   CV page
   ============================================================ */
.cv-block { margin-bottom: 48px; }
.cv-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.cv-row:first-of-type { border-top: none; }
.cv-when {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  padding-top: 3px;
}
.cv-row h3 { margin-bottom: 4px; }
.cv-row .role-org { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: 8px; }

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-top: 8px;
}
.skill-group .eyebrow { margin-bottom: 10px; }
.skill-group ul { margin: 0; padding: 0; list-style: none; color: var(--ink-soft); font-size: 0.95rem; }
.skill-group li { padding: 4px 0; }

.cv-download { margin-top: 8px; }

/* ============================================================
   Contact page
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
}

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li {
  padding: 18px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.contact-list li:first-child { border-top: none; }
.contact-list .label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-transform: uppercase;
}

form.contact-form { display: flex; flex-direction: column; gap: 18px; }
form.contact-form label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
  display: block;
}
form.contact-form input,
form.contact-form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}
form.contact-form input:focus,
form.contact-form textarea:focus { outline: none; border-color: var(--accent); }
form.contact-form textarea { resize: vertical; min-height: 120px; }
form.contact-form button { align-self: flex-start; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 720px) {
  nav.primary-nav { display: none; }
  nav.primary-nav.is-open {
    display: block;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  nav.primary-nav.is-open ul {
    flex-direction: column;
    gap: 0;
    padding: 8px var(--edge) 24px;
  }
  nav.primary-nav.is-open li { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }

  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .ledger-item { grid-template-columns: 40px 1fr; }
  .status { grid-column: 1 / -1; justify-self: start; margin-top: 8px; }
  .cv-row { grid-template-columns: 1fr; }
  .cv-when { padding-top: 0; }
}

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