:root {
  --bg: #0D1210;
  --surface: #141C19;
  --surface-2: #182420;
  --line: #23302B;
  --line-strong: #34443D;
  --accent: #C2A469;
  --accent-soft: #D9C48F;
  --text: #EDEFEC;
  --text-dim: #9BA9A3;
  --text-faint: #63716B;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --content-width: 720px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0;
  color: var(--text);
}

/* ---------- header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2.25rem 1.5rem 1.25rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.12em;
  font-size: 13px;
}

.site-header nav { display: flex; gap: 1.75rem; }

.site-header nav a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.site-header nav a:hover { color: var(--text); }

/* ---------- main / trace line ---------- */

main {
  max-width: var(--content-width);
  padding: 0 1.5rem 0 2.25rem;
  border-left: 1px solid var(--line);
  margin-left: max(1.5rem, calc(50% - (var(--content-width) / 2)));
}

section {
  position: relative;
  padding: 4rem 0 4rem 1.5rem;
  border-bottom: 1px solid var(--line);
}
section:last-of-type { border-bottom: none; }

.via {
  position: absolute;
  left: calc(-1.5rem - 4px);
  top: 4.4rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- hero ---------- */

.hero { padding-top: 3rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin: 0 0 1.25rem;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.hero-copy {
  max-width: 48ch;
  color: var(--text-dim);
  font-size: 16.5px;
  margin: 1.5rem 0 0;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.25rem;
  flex-wrap: wrap;
}

.btn {
  font-size: 14px;
  font-weight: 500;
  padding: 0.75rem 1.4rem;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  display: inline-block;
}
.btn-primary {
  background: var(--accent);
  color: #211906;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-soft); border-color: var(--accent-soft); }
.btn-ghost { color: var(--text); }
.btn-ghost:hover { border-color: var(--text-dim); color: var(--text); background: var(--surface); }

/* ---------- section headings ---------- */

.about h2, .skills h2, .projects h2, .contact h2 {
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
}

/* ---------- about ---------- */

.about-grid p {
  color: var(--text-dim);
  max-width: 62ch;
}
.about-grid p + p { margin-top: 1rem; }

/* ---------- skills ---------- */

.pin-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem 2rem;
}

.pin-grid li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 15px;
  color: var(--text);
}
.pin-grid li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- projects ---------- */

.section-note {
  color: var(--text-dim);
  font-size: 15px;
  margin: -1rem 0 2rem;
  max-width: 55ch;
}

.chip-grid {
  display: grid;
  gap: 1rem;
}

.chip {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--accent);
  border-radius: 8px;
  padding: 1.5rem 1.75rem;
}

.chip-id {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.chip h3 {
  font-size: 1.1rem;
  margin: 0.6rem 0 0.6rem;
}

.chip p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin: 0;
}

/* ---------- contact ---------- */

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.contact-row:hover {
  border-color: var(--accent);
  background: var(--surface-2);
}

.contact-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}
.contact-icon svg { width: 100%; height: 100%; }
.contact-row:hover .contact-icon { color: var(--accent); }

.contact-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.contact-platform {
  font-size: 12px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.contact-handle {
  font-size: 15px;
  color: var(--text);
}
.contact-row:hover .contact-handle { color: var(--accent); }

/* ---------- footer ---------- */

footer {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .site-header { padding: 1.5rem 1rem 1rem; }
  .site-header nav { gap: 1.1rem; }
  main { margin-left: 1rem; padding-left: 1.5rem; padding-right: 1rem; }
  section { padding-left: 1rem; }
  .via { left: -1rem; }
  .pin-grid { grid-template-columns: 1fr; }
  footer { padding: 1.5rem 1rem 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}