/* ============================================================
   AI SUMMER CAMP 2026 — Hackathon de Agentes · MIL
   Sistema de diseño "Aurora": la identidad del Summer Camp
   (gradiente violeta→turquesa→coral + grano) sobre base noche.
   ============================================================ */

:root {
  --bg: #0b0b1f;
  --bg-2: #12122b;
  --ink: #f3f1ff;
  --muted: #a9a4c9;
  --faint: #6f6a92;
  --line: rgba(255, 255, 255, 0.09);
  --card: rgba(255, 255, 255, 0.035);
  --card-2: rgba(255, 255, 255, 0.06);
  --mint: #2ee6c3;
  --violet: #8b5cf6;
  --blue: #5aa4ff;
  --coral: #ff8a66;
  --pink: #e879f9;
  --naranja: #ff7900;
  --acc: var(--mint); /* acento por página */
  --acc-ink: #062a23;
  --radius: 18px;
  --font-display: "Bricolage Grotesque", "Avenir Next", "Trebuchet MS", sans-serif;
  --font-body: "Instrument Sans", "Avenir", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Fondo aurora + grano ---------- */
.aurora {
  position: fixed; inset: 0; z-index: -2; overflow: hidden;
  background:
    radial-gradient(38% 42% at 12% 8%, rgba(139, 92, 246, 0.32), transparent 70%),
    radial-gradient(34% 38% at 88% 12%, rgba(255, 138, 102, 0.20), transparent 70%),
    radial-gradient(42% 46% at 18% 92%, rgba(46, 230, 195, 0.16), transparent 70%),
    radial-gradient(30% 34% at 85% 80%, rgba(232, 121, 249, 0.12), transparent 70%),
    var(--bg);
  animation: auroraShift 26s ease-in-out infinite alternate;
}
@keyframes auroraShift {
  0%   { filter: hue-rotate(0deg)  saturate(1); }
  100% { filter: hue-rotate(14deg) saturate(1.15); }
}
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Estructura ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

/* ---------- Nav ---------- */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 11, 31, 0.72);
  border-bottom: 1px solid var(--line);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.wordmark {
  font-family: var(--font-display); font-weight: 700; font-size: 17px;
  letter-spacing: 0.02em; color: var(--ink); text-decoration: none; white-space: nowrap;
}
.wordmark .bracket { color: var(--acc); font-weight: 800; }
.navlinks { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.navlinks a {
  color: var(--muted); text-decoration: none; font-size: 14px;
  font-family: var(--font-mono); letter-spacing: 0.03em;
}
.navlinks a:hover { color: var(--acc); }

/* ---------- Hero ---------- */
header.hero { padding: 92px 0 64px; position: relative; }
.kicker {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--acc); margin-bottom: 18px;
}
h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(44px, 7vw, 84px); line-height: 1.02; letter-spacing: -0.02em;
  margin-bottom: 22px;
}
h1 .grad {
  background: linear-gradient(92deg, var(--violet) 0%, var(--mint) 55%, var(--coral) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: clamp(18px, 2.2vw, 22px); color: var(--muted); max-width: 46ch; }
.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 30px; }

/* ---------- Pills / badges ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 15px; font-family: var(--font-mono); font-size: 12.5px;
  color: var(--muted); background: var(--card);
}
.pill strong { color: var(--ink); font-weight: 600; }
.pill.acc { border-color: color-mix(in srgb, var(--acc) 55%, transparent); color: var(--acc); }

/* ---------- Secciones ---------- */
section { padding: 58px 0; border-top: 1px solid var(--line); }
.sec-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 34px; }
.sec-num { font-family: var(--font-mono); font-size: 14px; color: var(--acc); letter-spacing: 0.1em; }
h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.015em; line-height: 1.1;
}
h3 {
  font-family: var(--font-display); font-weight: 700; font-size: 21px;
  margin-bottom: 10px; letter-spacing: -0.01em;
}
.sub { color: var(--muted); max-width: 62ch; margin-bottom: 26px; }
p + p { margin-top: 12px; }

/* ---------- Grid de tarjetas ---------- */
.grid { display: grid; gap: 18px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--acc) 40%, transparent); background: var(--card-2); }
.card .tag {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--acc); display: block; margin-bottom: 10px;
}
.card p { color: var(--muted); font-size: 15.5px; }

/* Tarjetas de reto (portada) */
a.reto-card { text-decoration: none; color: inherit; display: block; }
.reto-card .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.reto-card .logo {
  font-family: var(--font-mono); font-size: 12px; padding: 5px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--rc, var(--mint)) 16%, transparent);
  color: var(--rc, var(--mint)); border: 1px solid color-mix(in srgb, var(--rc, var(--mint)) 40%, transparent);
}
.reto-card h3 { font-size: 23px; }
.reto-card .go { color: var(--rc, var(--mint)); font-family: var(--font-mono); font-size: 13px; margin-top: 16px; display: inline-block; }
.reto-card:hover { border-color: color-mix(in srgb, var(--rc, var(--mint)) 55%, transparent); }

/* ---------- Tablas ---------- */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
th {
  text-align: left; font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--acc);
  padding: 14px 18px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.03);
}
td { padding: 13px 18px; border-bottom: 1px solid var(--line); color: var(--muted); vertical-align: top; }
tr:last-child td { border-bottom: none; }
td strong, td b { color: var(--ink); font-weight: 600; }

/* ---------- Barras de rúbrica ---------- */
.rubrica { display: grid; gap: 14px; }
.rub-row { display: grid; grid-template-columns: minmax(180px, 240px) 1fr 52px; gap: 14px; align-items: center; }
.rub-row .lbl { font-size: 15px; color: var(--ink); }
.rub-row .lbl small { display: block; color: var(--faint); font-size: 12.5px; }
.rub-bar { height: 12px; border-radius: 999px; background: rgba(255,255,255,0.07); overflow: hidden; }
.rub-bar i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--violet), var(--mint)); }
.rub-row .pct { font-family: var(--font-mono); font-size: 13.5px; color: var(--acc); text-align: right; }

/* ---------- Timeline (3 días) ---------- */
.timeline { display: grid; gap: 0; position: relative; }
.tl-item { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px dashed var(--line); }
.tl-item:last-child { border-bottom: none; }
.tl-when { font-family: var(--font-mono); font-size: 14px; color: var(--acc); padding-top: 3px; }
.tl-item h3 { font-size: 19px; margin-bottom: 6px; }
.tl-item p { color: var(--muted); font-size: 15.5px; }

/* ---------- Checklists ---------- */
ul.check { list-style: none; display: grid; gap: 10px; }
ul.check li { padding-left: 32px; position: relative; color: var(--muted); font-size: 15.5px; }
ul.check li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 21px; height: 21px; border-radius: 6px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--acc) 18%, transparent);
  color: var(--acc); font-size: 13px; font-weight: 700;
}
ul.check li strong { color: var(--ink); }
ul.check.x li::before { content: "✕"; background: rgba(255,110,110,0.14); color: #ff8484; }

/* ---------- Niveles (núcleo/extras) ---------- */
.nivel { border-left: 3px solid var(--acc); padding: 4px 0 4px 22px; margin-bottom: 22px; }
.nivel .nv {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--acc);
}
.nivel h3 { margin: 6px 0 8px; }
.nivel p, .nivel li { color: var(--muted); font-size: 15.5px; }
.nivel ul { padding-left: 20px; margin-top: 6px; }
.nivel.opt { border-left-style: dashed; opacity: 0.94; }

/* ---------- Callouts ---------- */
.callout {
  border: 1px solid color-mix(in srgb, var(--acc) 35%, transparent);
  background: color-mix(in srgb, var(--acc) 7%, transparent);
  border-radius: var(--radius); padding: 20px 24px; margin: 24px 0;
  font-size: 15.5px; color: var(--muted);
}
.callout strong { color: var(--ink); }
.callout.warn { border-color: rgba(255,170,90,0.4); background: rgba(255,170,90,0.07); }

/* ---------- UAT ---------- */
.uat { display: grid; gap: 14px; }
.uat-case {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; background: var(--card);
}
.uat-case .id { font-family: var(--font-mono); font-size: 12px; color: var(--acc); letter-spacing: 0.1em; }
.uat-case .in { margin: 8px 0 6px; color: var(--ink); font-size: 15.5px; }
.uat-case .in::before { content: "▸ Entrada: "; color: var(--faint); font-family: var(--font-mono); font-size: 12.5px; }
.uat-case .out { color: var(--muted); font-size: 15.5px; }
.uat-case .out::before { content: "✓ Esperado: "; color: var(--acc); font-family: var(--font-mono); font-size: 12.5px; }

/* ---------- Código / mono ---------- */
code {
  font-family: var(--font-mono); font-size: 0.86em;
  background: rgba(255,255,255,0.07); border-radius: 6px; padding: 2px 7px;
  color: var(--mint);
}

/* ---------- Enlaces ---------- */
a { color: var(--acc); }
main a:not(.reto-card):not(.btn):hover { opacity: 0.85; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--acc); color: var(--acc-ink); text-decoration: none;
  font-weight: 700; font-family: var(--font-display);
  padding: 13px 26px; border-radius: 999px; font-size: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 34px color-mix(in srgb, var(--acc) 35%, transparent); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }

/* ---------- Ficha de reto: cabecera ---------- */
.reto-hero { padding: 76px 0 50px; }
.reto-hero .patro {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--acc); margin-bottom: 14px;
}
.reto-hero h1 { font-size: clamp(36px, 5.5vw, 62px); }
.meta-strip { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }

/* Storytelling */
.story {
  font-size: clamp(18px, 2.1vw, 21px); line-height: 1.7; color: var(--ink);
  border-left: 3px solid var(--acc); padding-left: 26px; max-width: 66ch;
  font-style: italic; opacity: 0.95;
}
.story em { color: var(--acc); font-style: normal; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 44px 0 60px; margin-top: 40px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
footer p { color: var(--faint); font-size: 13.5px; font-family: var(--font-mono); }

/* ---------- Animación de entrada ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.rise { animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.d1 { animation-delay: 0.08s; } .d2 { animation-delay: 0.16s; }
.d3 { animation-delay: 0.24s; } .d4 { animation-delay: 0.32s; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .tl-item { grid-template-columns: 1fr; gap: 4px; }
  .rub-row { grid-template-columns: 1fr 60px; }
  .rub-row .rub-bar { grid-column: 1 / -1; order: 3; }
  .navlinks { display: none; }
}