:root {
  --bg: #0b0d10;
  --bg-2: #12151a;
  --line: #1f242c;
  --text: #e6e8eb;
  --muted: #8b949e;
  --accent: #7ee787;
  --accent-2: #58a6ff;
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--accent); color: #000; padding: 8px 12px; border-radius: 6px; z-index: 10; }

/* nav */
.nav { position: sticky; top: 0; z-index: 5; background: rgba(11,13,16,.8); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 60px; }
.brand { font-family: var(--mono); color: var(--accent); text-decoration: none; font-weight: 700; }
.nav nav { display: flex; gap: 20px; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav nav a:hover { color: var(--text); }

/* hero */
.hero { padding: 96px 20px 64px; }
.eyebrow { font-family: var(--mono); color: var(--accent); font-size: 14px; margin: 0 0 12px; }
.hero h1 { font-size: clamp(36px, 7vw, 64px); line-height: 1.05; margin: 0; letter-spacing: -0.02em; }
.role { font-size: clamp(20px, 3.5vw, 28px); color: var(--muted); margin: 8px 0 24px; }
.bio { max-width: 620px; color: #c9d1d9; margin: 0 0 32px; white-space: pre-line; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 8px; border: 1px solid var(--line);
  text-decoration: none; font-weight: 600; font-size: 15px;
  transition: border-color .15s, background .15s, transform .15s;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: #0b0d10; border-color: var(--accent); }
.btn.primary:hover { background: #a5f3a9; }

/* blocks */
.block { padding: 56px 20px; border-top: 1px solid var(--line); }
.block h2 { font-size: 24px; margin: 0 0 24px; display: flex; align-items: baseline; gap: 12px; }
.num { font-family: var(--mono); font-size: 14px; color: var(--accent); }

.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-family: var(--mono); font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-2); color: #c9d1d9; }

/* projects */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; border-bottom: 1px solid var(--line); background: #0f1216; }
.card-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card h3 { margin: 0; font-size: 18px; display: flex; justify-content: space-between; gap: 8px; }
.card h3 a { text-decoration: none; }
.card h3 a::after { content: ""; position: absolute; inset: 0; } /* toda la tarjeta clickeable */
.card .arrow { color: var(--muted); font-family: var(--mono); transition: color .15s, transform .15s; }
.card:hover .arrow { color: var(--accent); transform: translate(2px,-2px); }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.tags span { font-family: var(--mono); font-size: 12px; color: var(--accent-2); }
.repo { position: relative; z-index: 1; font-family: var(--mono); font-size: 12px; color: var(--muted); text-decoration: none; align-self: flex-start; }
.repo:hover { color: var(--text); }

.skeleton { height: 160px; border-radius: var(--radius); background: linear-gradient(90deg, var(--bg-2), #171b21, var(--bg-2)); background-size: 200% 100%; animation: sh 1.2s infinite; border: 1px solid var(--line); }
@keyframes sh { to { background-position: -200% 0; } }

/* contacto */
.email { display: inline-block; font-size: clamp(20px, 4vw, 28px); font-weight: 700; color: var(--accent); text-decoration: none; margin: 8px 0 24px; word-break: break-all; }
.email:hover { text-decoration: underline; }
.socials { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.socials a { display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; font-size: 14px; color: #c9d1d9; }
.socials a:hover { border-color: var(--accent); color: var(--text); }

.footer { padding: 32px 20px 48px; color: var(--muted); font-size: 13px; font-family: var(--mono); border-top: 1px solid var(--line); }

/* 404 */
.notfound { min-height: 100vh; display: grid; place-content: center; text-align: center; gap: 12px; padding: 20px; }
.notfound h1 { font-family: var(--mono); color: var(--accent); font-size: 64px; margin: 0; }

@media (max-width: 560px) {
  .nav nav { gap: 14px; }
  .hero { padding-top: 64px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}