/* ===== haricane — public portfolio styles =====
   Plain CSS, no build step. Mobile-first. */

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #21262d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --beginner: #d29922;
  --intermediate: #58a6ff;
  --advanced: #3fb950;
  --radius: 10px;
  --max: 760px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ===== nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: 0.5px; }
.nav nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
  font-size: 0.95rem;
}
.nav nav a:hover { color: var(--text); }

/* ===== layout ===== */
main { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
section { padding: 56px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

h1 { font-size: 2.4rem; line-height: 1.15; margin-bottom: 10px; }
h2 { font-size: 1.5rem; margin-bottom: 24px; }
h3 { font-size: 1.05rem; color: var(--accent); margin-bottom: 12px; }

/* ===== hero ===== */
.hero { padding-top: 72px; }
.tagline { color: var(--accent); font-size: 1.1rem; margin-bottom: 18px; }
.bio { color: var(--muted); max-width: 60ch; }

/* ===== skills ===== */
.skill-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.skill-group ul { list-style: none; }
.skill-group li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.skill-group li:last-child { border-bottom: none; }
.skill-group .level {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
li[data-level="beginner"]     .level { color: var(--beginner);     background: rgba(210,153,34,0.12); }
li[data-level="intermediate"] .level { color: var(--intermediate); background: rgba(88,166,255,0.12); }
li[data-level="advanced"]     .level { color: var(--advanced);     background: rgba(63,185,80,0.12); }

/* ===== contact ===== */
.links { list-style: none; display: flex; flex-wrap: wrap; gap: 14px; }
.links a {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  background: var(--surface);
}
.links a:hover { border-color: var(--accent); color: var(--accent); }

/* ===== footer ===== */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 20px 48px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}
.app-link { color: var(--accent); text-decoration: none; }
.app-link:hover { text-decoration: underline; }