/* CAN — Centro Acuático Olímpico
   Paleta: azul piscina + acentos turquesa + blanco limpio. */
:root {
  --can-blue: #0a4f7a;
  --can-blue-dark: #07334f;
  --can-cyan: #00b4d8;
  --can-cyan-light: #90e0ef;
  --can-bg: #f5f9fc;
  --can-text: #0e2538;
  --can-muted: #5f7184;
  --can-border: #d8e3ec;
  --can-card: #ffffff;
  --can-success: #16a34a;
  --shadow-sm: 0 1px 2px rgba(7,51,79,0.08);
  --shadow-md: 0 4px 16px rgba(7,51,79,0.10);
  --shadow-lg: 0 10px 30px rgba(7,51,79,0.16);
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--can-text);
  background: var(--can-bg);
  line-height: 1.55;
}

.container { width: min(1200px, calc(100% - 2rem)); margin: 0 auto; }

/* ─── Header ─────────────────────────────────────── */
.site-header {
  background: var(--can-card);
  border-bottom: 1px solid var(--can-border);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 0;
}
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; color: inherit; }
.brand-logo {
  background: linear-gradient(135deg, var(--can-blue) 0%, var(--can-cyan) 100%);
  color: #fff; padding: 0.45rem 0.7rem; border-radius: 8px;
  font-weight: 800; letter-spacing: 0.05em;
}
.brand-name { font-weight: 600; color: var(--can-blue); }
.nav { display: flex; align-items: center; gap: 1.5rem; }
.nav a { color: var(--can-text); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--can-blue); }

/* ─── Buttons ────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  transition: transform 0.1s, box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  background: var(--can-blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--can-blue-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: transparent;
  color: var(--can-blue);
  border-color: var(--can-blue);
}
.btn-secondary:hover { background: var(--can-blue); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--can-text);
  border-color: transparent;
}

/* ─── Hero ──────────────────────────────────────── */
.hero {
  padding: 4rem 0 5rem;
  background:
    radial-gradient(circle at 80% 10%, rgba(0,180,216,0.18) 0%, transparent 50%),
    radial-gradient(circle at 0% 60%, rgba(10,79,122,0.10) 0%, transparent 40%),
    var(--can-bg);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(0,180,216,0.12);
  color: var(--can-blue);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--can-blue-dark);
}
.hero-lead {
  font-size: 1.1rem;
  color: var(--can-muted);
  margin: 0 0 2rem;
  max-width: 56ch;
}
.hero-cta { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-bottom: 1.4rem; }
.hero-trust { color: var(--can-muted); font-size: 0.9rem; }

.hero-card {
  background: var(--can-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--can-border);
  text-align: center;
  position: relative;
}
.card-tag {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--can-blue);
  color: #fff;
  padding: 0.25rem 0.9rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}
.card-qr {
  font-family: ui-monospace, monospace;
  font-size: 2.4rem;
  letter-spacing: 0.15em;
  line-height: 1.1;
  background: #fff;
  padding: 1.3rem;
  border-radius: 10px;
  border: 2px solid var(--can-border);
  margin: 1rem auto 1.4rem;
  width: max-content;
  color: var(--can-blue-dark);
}
.status-ok {
  display: inline-block;
  background: rgba(22,163,74,0.12);
  color: var(--can-success);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
}
.card-name { font-size: 1.2rem; font-weight: 700; color: var(--can-blue-dark); }
.card-info { color: var(--can-muted); font-size: 0.9rem; margin-top: 0.3rem; }

/* ─── Sections ──────────────────────────────────── */
.section { padding: 4rem 0; }
.section-alt { background: linear-gradient(180deg, var(--can-bg) 0%, #eaf3f9 100%); }
.section-title {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  text-align: center;
  color: var(--can-blue-dark);
  margin: 0 0 0.6rem;
}
.section-subtitle {
  text-align: center;
  color: var(--can-muted);
  max-width: 60ch;
  margin: 0 auto 3rem;
  font-size: 1.05rem;
}

/* ─── Features grid ─────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.feature {
  background: var(--can-card);
  border: 1px solid var(--can-border);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.2s;
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--can-cyan-light);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
}
.feature h3 {
  margin: 0 0 0.5rem;
  color: var(--can-blue-dark);
  font-size: 1.15rem;
}
.feature p {
  color: var(--can-muted);
  margin: 0 0 0.8rem;
  font-size: 0.95rem;
}
.feature ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature li {
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
  color: var(--can-text);
}
.feature li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--can-cyan);
  font-weight: 700;
}

/* ─── Planes ────────────────────────────────────── */
.planes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.plan {
  background: var(--can-card);
  border: 1px solid var(--can-border);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
}
.plan-highlight {
  border: 2px solid var(--can-blue);
  box-shadow: var(--shadow-md);
}
.plan-badge {
  position: absolute; top: -12px; right: 16px;
  background: var(--can-cyan);
  color: #fff;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
}
.plan h3 { margin: 0 0 0.6rem; color: var(--can-blue-dark); }
.plan p { color: var(--can-muted); margin: 0; }

/* ─── Demo block ────────────────────────────────── */
.demo-block {
  background: linear-gradient(135deg, var(--can-blue) 0%, var(--can-cyan) 100%);
  color: #fff;
  text-align: center;
  padding: 3.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.demo-block h2 { margin: 0 0 0.8rem; font-size: 1.8rem; }
.demo-block p { color: rgba(255,255,255,0.92); margin: 0 0 1.8rem; max-width: 50ch; margin-left: auto; margin-right: auto; }
.demo-cta { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }
.demo-block .btn-primary { background: #fff; color: var(--can-blue); }
.demo-block .btn-primary:hover { background: var(--can-bg); }
.demo-block .btn-secondary { color: #fff; border-color: rgba(255,255,255,0.6); }
.demo-block .btn-secondary:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* ─── Footer ────────────────────────────────────── */
.site-footer {
  background: var(--can-blue-dark);
  color: rgba(255,255,255,0.85);
  padding: 2rem 0;
  margin-top: 3rem;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
}
.site-footer a { color: var(--can-cyan-light); }

/* ─── Responsive ────────────────────────────────── */
@media (max-width: 800px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .nav { gap: 0.7rem; }
  .nav a:not(.btn) { display: none; }
}