/* NeuroSprint landing — tokens */
:root {
  --bg: #0b1220;
  --surface: #101a2c;
  --border: #1c2a40;
  --text: #e8edf4;
  --muted: #8a97a8;
  --primary: #208aef;
  --primary-soft: rgba(32, 138, 239, 0.12);
  --amber: #f0a63a;
  --radius: 14px;
  --measure: 68ch;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'Bricolage Grotesque', 'Inter', sans-serif; line-height: 1.15; }

/* Header */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--border);
}
.brand { font-family: 'Bricolage Grotesque', sans-serif; font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.brand span { color: var(--primary); }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; margin-left: 24px; }
nav a:hover, nav a:focus-visible { color: var(--text); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }

/* Hero */
.hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(24px, 5vw, 64px);
  align-items: center; padding: clamp(48px, 9vh, 96px) clamp(20px, 5vw, 56px);
  max-width: 1120px; margin: 0 auto;
}
.badge {
  display: inline-block; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--primary); background: var(--primary-soft); border: 1px solid rgba(32,138,239,0.35);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px; font-weight: 600;
}
.hero h1 { font-size: clamp(34px, 5.2vw, 58px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p { color: var(--muted); font-size: clamp(16px, 1.6vw, 19px); max-width: 46ch; }
.hero-meta { margin-top: 28px; color: var(--muted); font-size: 14px; display: flex; gap: 18px; flex-wrap: wrap; }
.hero-meta strong { color: var(--text); font-weight: 600; }

/* Radar */
.radar-wrap { display: flex; justify-content: center; }
.radar { width: min(380px, 82vw); height: auto; }
.radar .grid-line { stroke: var(--border); fill: none; }
.radar .axis { stroke: var(--border); }
.radar .data {
  stroke: var(--primary); stroke-width: 2.5; fill: rgba(32,138,239,0.18);
  stroke-linejoin: round;
}
.radar .dot { fill: var(--primary); }
.radar text { fill: var(--muted); font-family: 'Inter', sans-serif; font-size: 13px; }
@media (prefers-reduced-motion: no-preference) {
  .radar .data {
    stroke-dasharray: 900; stroke-dashoffset: 900;
    animation: draw 1.6s ease-out 0.3s forwards;
  }
  @keyframes draw { to { stroke-dashoffset: 0; } }
}

.store-btn {
  display: inline-block; margin-top: 28px; background: var(--primary); color: #fff;
  text-decoration: none; font-weight: 600; font-size: 16px;
  padding: 13px 26px; border-radius: 999px;
}
.store-btn:hover { filter: brightness(1.1); }

/* Skills + pasos */
section { padding: clamp(40px, 7vh, 72px) clamp(20px, 5vw, 56px); max-width: 1120px; margin: 0 auto; }
section h2 { font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.02em; margin-bottom: 28px; }
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.skill {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 16px;
}
.skill strong { display: block; font-size: 16px; margin-bottom: 4px; }
.skill span { color: var(--muted); font-size: 14px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.step { border-left: 3px solid var(--primary); padding: 4px 0 4px 18px; }
.step strong { display: block; font-size: 17px; margin-bottom: 4px; }
.step span { color: var(--muted); font-size: 15px; }

/* Footer */
footer {
  border-top: 1px solid var(--border); padding: 32px clamp(20px, 5vw, 56px);
  color: var(--muted); font-size: 14px;
}
.footer-inner { max-width: 1120px; margin: 0 auto; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* Documentos legales */
.doc { max-width: var(--measure); margin: 0 auto; padding: clamp(40px, 7vh, 72px) 20px; }
.doc h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; margin-bottom: 8px; }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
.doc h2 { font-size: 21px; margin: 36px 0 12px; }
.doc p, .doc li { color: #c4cdd9; }
.doc ul { padding-left: 22px; margin: 10px 0; }
.doc li { margin-bottom: 6px; }
.doc a { color: var(--primary); }
.doc .note {
  background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--amber);
  border-radius: 8px; padding: 14px 16px; margin: 18px 0; font-size: 15px; color: #c4cdd9;
}

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero p { margin: 0 auto; }
  .hero-meta { justify-content: center; }
  .radar-wrap { order: -1; }
  nav a { margin-left: 16px; }
}