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

:root {
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: rgba(148, 163, 184, 0.35);
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #ffffff;
  --accent-formacion: #0369a1;
  --accent-formacion-soft: rgba(3, 105, 161, 0.12);
  --accent-enfermeria: #0d9488;
  --accent-enfermeria-soft: rgba(13, 148, 136, 0.12);
  --accent-mant: #7c3aed;
  --accent-mant-soft: rgba(124, 58, 237, 0.12);
  --safe-top: env(safe-area-inset-top, 0);
  --safe-bottom: env(safe-area-inset-bottom, 0);
  --safe-left: env(safe-area-inset-left, 0);
  --safe-right: env(safe-area-inset-right, 0);
  --font: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Instrument Sans", var(--font);
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  color: var(--ink-soft);
  min-height: 100vh;
  min-height: calc(100vh + var(--safe-top) + var(--safe-bottom));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  padding-left: max(1.25rem, var(--safe-left));
  padding-right: max(1.25rem, var(--safe-right));
  padding-top: max(1.25rem, var(--safe-top));
  padding-bottom: max(1.25rem, var(--safe-bottom));
  position: relative;
  overflow-x: hidden;
}

/* Fondo atmosférico */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(56, 189, 248, 0.18) 0%, transparent 55%),
    radial-gradient(90% 70% at 0% 100%, rgba(124, 58, 237, 0.12) 0%, transparent 50%),
    radial-gradient(70% 50% at 50% 50%, rgba(13, 148, 136, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
}

.wrap {
  max-width: 920px;
  width: 100%;
}

/* Cabecera */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem 0.35rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
}

.brand-badge {
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.35);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.1rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1rem;
  color: var(--muted);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
  font-weight: 400;
}

/* Tarjetas */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.125rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 1.125rem;
  padding: 1.35rem 1.35rem 1.25rem;
  text-decoration: none;
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 12px 40px -12px rgba(15, 23, 42, 0.18);
  transition:
    transform 0.22s cubic-bezier(0.34, 1.2, 0.64, 1),
    box-shadow 0.22s ease,
    border-color 0.22s ease;
  overflow: hidden;
  min-height: 168px;
}

.card-glow {
  position: absolute;
  top: -40%;
  right: -30%;
  width: 70%;
  height: 80%;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.card--formacion .card-glow {
  background: radial-gradient(circle, rgba(14, 165, 233, 0.35) 0%, transparent 70%);
}
.card--enfermeria .card-glow {
  background: radial-gradient(circle, rgba(13, 148, 136, 0.35) 0%, transparent 70%);
}
.card--mantenimientos .card-glow {
  background: radial-gradient(circle, rgba(124, 58, 237, 0.35) 0%, transparent 70%);
}

.card:hover .card-glow,
.card:focus-visible .card-glow {
  opacity: 1;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 20px 50px -16px rgba(15, 23, 42, 0.22);
  border-color: rgba(148, 163, 184, 0.45);
}

.card:active {
  transform: translateY(-1px);
}

.card:focus-visible {
  outline: 2px solid rgba(14, 165, 233, 0.55);
  outline-offset: 3px;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  color: var(--ink);
}

.card--formacion .card-icon {
  background: var(--accent-formacion-soft);
  color: var(--accent-formacion);
}
.card--enfermeria .card-icon {
  background: var(--accent-enfermeria-soft);
  color: var(--accent-enfermeria);
}
.card--mantenimientos .card-icon {
  background: var(--accent-mant-soft);
  color: var(--accent-mant);
}

.card-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  opacity: 0.65;
  transition: transform 0.2s ease, opacity 0.2s ease, color 0.2s ease;
}

.card:hover .card-arrow,
.card:focus-visible .card-arrow {
  opacity: 1;
  transform: translate(2px, -2px);
}

.card--formacion:hover .card-arrow,
.card--formacion:focus-visible .card-arrow {
  color: var(--accent-formacion);
}
.card--enfermeria:hover .card-arrow,
.card--enfermeria:focus-visible .card-arrow {
  color: var(--accent-enfermeria);
}
.card--mantenimientos:hover .card-arrow,
.card--mantenimientos:focus-visible .card-arrow {
  color: var(--accent-mant);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
  flex: 1;
  margin-bottom: 1rem;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.card--formacion .card-cta {
  color: var(--accent-formacion);
}
.card--enfermeria .card-cta {
  color: var(--accent-enfermeria);
}
.card--mantenimientos .card-cta {
  color: var(--accent-mant);
}

.card-cta span::after {
  content: " →";
  font-weight: 600;
}

.footer {
  text-align: center;
  margin-top: 2.25rem;
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ——— Tablet / móvil ——— */
@media (max-width: 900px) {
  .cards {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
    gap: 1rem;
  }

  .card {
    min-height: 150px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 1rem;
    padding-left: max(1rem, var(--safe-left));
    padding-right: max(1rem, var(--safe-right));
    padding-top: max(1.25rem, var(--safe-top));
    align-items: flex-start;
  }

  .header {
    margin-bottom: 1.65rem;
  }

  .brand {
    margin-bottom: 0.85rem;
  }

  .subtitle {
    font-size: 0.9375rem;
  }

  .card {
    padding: 1.05rem 1.1rem;
    border-radius: 1rem;
    -webkit-tap-highlight-color: transparent;
  }

  .card-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 11px;
  }

  .card-icon svg {
    width: 24px;
    height: 24px;
  }

  .card-title {
    font-size: 1.1rem;
  }

  .card-desc {
    font-size: 0.875rem;
  }

  .footer {
    margin-top: 1.75rem;
  }
}