/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --color-bg: #ffffff;
  --color-surface: #f5f5f7;
  --color-surface-2: #ececef;
  --color-ink: #1d1d1f;
  --color-muted: #6e6e73;
  --color-line: #d2d2d7;

  --color-accent: #2fd158;       /* "build passing" green */
  --color-accent-dim: #1fae44;
  --color-accent-soft: rgba(47, 209, 88, 0.12);

  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;

  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h: 52px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--color-accent-soft); }

/* ============================================================
   Layout helpers
   ============================================================ */
.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-accent-dim);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

h1 { font-size: clamp(2.4rem, 5vw + 1rem, 4.6rem); line-height: 1.05; }
h2 { font-size: clamp(1.8rem, 2.4vw + 1rem, 2.6rem); line-height: 1.1; }

p.lede {
  font-size: clamp(1.05rem, 1vw + 0.9rem, 1.3rem);
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 0 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 980px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}
.btn-primary {
  background: var(--color-ink);
  color: #fff;
}
.btn-primary:hover { background: #000; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-line);
  color: var(--color-ink);
}
.btn-ghost:hover { border-color: var(--color-ink); }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(210, 210, 215, 0.6);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-brand {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
}
.nav-brand span { color: var(--color-accent-dim); }
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 13px;
  color: var(--color-muted);
}
.nav-links a { transition: color 0.2s var(--ease); }
.nav-links a:hover, .nav-links a.active { color: var(--color-ink); }

/* ============================================================
   Hero + terminal signature element
   ============================================================ */
.hero {
  background: var(--color-ink);
  color: #f5f5f7;
  padding: 120px 0 100px;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero p.lede { color: #a1a1a6; }
.hero .eyebrow { color: var(--color-accent); }
.hero .eyebrow::before { box-shadow: 0 0 0 3px rgba(47, 209, 88, 0.25); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn-ghost { border-color: rgba(255,255,255,0.24); color: #f5f5f7; }
.hero .btn-ghost:hover { border-color: #fff; }
.hero .btn-primary { background: var(--color-accent); color: #05170a; }
.hero .btn-primary:hover { background: var(--color-accent-dim); }

.terminal {
  background: #0d0d0f;
  border: 1px solid #2c2c2e;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  background: #1b1b1d;
  border-bottom: 1px solid #2c2c2e;
}
.terminal-bar span {
  width: 11px; height: 11px; border-radius: 50%;
  background: #3a3a3c;
}
.terminal-body {
  font-family: var(--font-mono);
  font-size: 13.5px;
  padding: 20px;
  min-height: 220px;
  color: #d1d1d6;
  white-space: pre-wrap;
}
.terminal-body .prompt { color: var(--color-accent); }
.terminal-body .ok { color: var(--color-accent); }
.terminal-cursor {
  display: inline-block;
  width: 7px; height: 15px;
  background: var(--color-accent);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .terminal-cursor { animation: none; }
}

/* ============================================================
   Section: light / surface
   ============================================================ */
.section-surface { background: var(--color-surface); }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 40px -24px rgba(0,0,0,0.18);
}

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.tag {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 6px;
  background: var(--color-surface-2);
  color: var(--color-muted);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent-dim);
}
.status::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  font-size: 10px;
  color: var(--color-accent-dim);
}

/* ============================================================
   Footer
   ============================================================ */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-line);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-muted);
  flex-wrap: wrap;
  gap: 12px;
}
footer a:hover { color: var(--color-ink); }

/* ============================================================
   About page specifics
   ============================================================ */
.skills-mono {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}
.skills-mono span {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.timeline { margin-top: 40px; border-left: 2px solid var(--color-line); padding-left: 28px; }
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -34px; top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 6px;
  display: block;
}

/* ============================================================
   Contact page specifics
   ============================================================ */
.contact-shell {
  background: var(--color-ink);
  color: #f5f5f7;
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-top: 40px;
}
.contact-shell .terminal-body { min-height: auto; padding: 0; }
.contact-form {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}
.contact-form label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #a1a1a6;
  display: block;
  margin-bottom: 6px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: #0d0d0f;
  border: 1px solid #2c2c2e;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: #f5f5f7;
  font-family: var(--font-body);
  font-size: 14px;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}
.contact-form button {
  justify-self: start;
  border: none;
  cursor: pointer;
}
.social-row { display: flex; gap: 18px; margin-top: 28px; }
.social-row a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #a1a1a6;
  border-bottom: 1px solid transparent;
}
.social-row a:hover { color: #fff; border-color: var(--color-accent); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
  section { padding: 64px 0; }
  .contact-shell { padding: 28px; }
}

:focus-visible {
  outline: 2px solid var(--color-accent-dim);
  outline-offset: 2px;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 2rem;
}