:root {
  /* Paleta corporativa UC */
  --uc-blue: #173f8a;
  --uc-primary: #0176de;
  --uc-darkblue: #03122e;
  --uc-yellow: #fec60d;
  --uc-darkyellow: #e3ae00;
  --uc-white: #ffffff;
  --uc-lightgray: #eaeaea;

  --color-bg: var(--uc-darkblue);
  --color-bg-alt: #0a1f47;
  --color-primary: var(--uc-primary);
  --color-primary-dark: var(--uc-blue);
  --color-accent: var(--uc-yellow);
  --color-accent-dark: var(--uc-darkyellow);
  --color-secondary: #9c9c9c;
  --color-text: #f1f5f9;
  --color-text-muted: #a9b4c9;
  --color-card-bg: rgba(255, 255, 255, 0.04);
  --color-card-border: rgba(255, 255, 255, 0.1);
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
  --transition: 0.25s ease;

  /* Acentos sutiles extraídos de cada captura (misma familia institucional) */
  --legacy-accent: #4f7cab;
  --new-accent: #cfe0f0;

  /* Color real del menú principal de cada captura (muestreado del screenshot) */
  --legacy-menu-bg: #222d32;
  --new-menu-bg: #173f8a;

  --color-success: #34d399;
}

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

body {
  min-height: 100vh;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
}

.background {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, rgba(1, 118, 222, 0.3), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(254, 198, 13, 0.12), transparent 45%),
    linear-gradient(160deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hover-preview {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-size: cover;
  background-position: top left;
  transform: scale(1.3);
  transform-origin: top left;
  filter: blur(8px);
  transition: clip-path 1.1s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.hover-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(3, 18, 46, 0.65) 0%, rgba(3, 18, 46, 0.55) 100%);
}

/*
  El barrido se modela como un rombo grande (N, E, S, O) que se traslada en línea
  recta por la diagonal inferior-izquierda / superior-derecha. Al ser una traslación
  pura (los 4 vértices se mueven en bloque), el borde nunca rota ni pivotea sobre
  una esquina: avanza de forma continua y pareja.
*/

/* Legacy: oculto más allá de la esquina inferior izquierda */
#preview-legacy {
  clip-path: polygon(-120% 10%, 90% 220%, -120% 430%, -330% 220%);
}

/* Legacy: revelado, centrado más allá de la esquina superior derecha */
#preview-legacy.is-active {
  clip-path: polygon(100% -210%, 310% 0%, 100% 210%, -110% 0%);
}

/* Nuevo: oculto más allá de la esquina superior derecha */
#preview-new {
  clip-path: polygon(220% -330%, 430% -120%, 220% 90%, 10% -120%);
}

/* Nuevo: revelado, centrado más allá de la esquina inferior izquierda */
#preview-new.is-active {
  clip-path: polygon(0% -110%, 210% 100%, 0% 310%, -210% 100%);
}

.container {
  width: 100%;
  max-width: 960px;
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
}

.header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 160px;
  height: auto;
  margin-bottom: 12px;
}

.header h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--color-text-muted);
  font-size: 16px;
  max-width: 480px;
}

.cards {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  position: relative;
  background: var(--color-card-bg);
  border: 1px solid color-mix(in srgb, var(--card-accent) 22%, var(--color-card-border));
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition),
    background var(--transition), opacity var(--transition);
}

/* Resplandor ambiental sutil con el color característico de cada captura */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 15% 0%, var(--card-accent) 0%, transparent 60%);
  opacity: 0.16;
  transition: opacity var(--transition);
  pointer-events: none;
}

.card:hover::after {
  opacity: 0.32;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, transparent, var(--card-accent), transparent);
  opacity: 0.7;
  transition: opacity var(--transition);
}

#card-legacy {
  --card-accent: var(--legacy-accent);
  --card-menu-bg: var(--legacy-menu-bg);
}

#card-new {
  --card-accent: var(--new-accent);
  --card-menu-bg: var(--new-menu-bg);
}

.card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--card-accent) 45%, white 10%);
  background: color-mix(in srgb, var(--card-menu-bg) 55%, transparent);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 44px -12px var(--card-accent);
}

.card:hover::before {
  opacity: 1;
}

.cards:has(.card:hover) .card:not(:hover) {
  opacity: 0.65;
}

.card-badge {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
}

.card-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--card-accent);
}

.badge-legacy {
  background: rgba(156, 156, 156, 0.18);
  color: #c6c6c6;
}

.badge-new {
  background: color-mix(in srgb, var(--card-accent) 22%, transparent);
  color: var(--card-accent);
}

.badge-new::before {
  background: var(--color-success);
  box-shadow: 0 0 6px 1px var(--color-success);
}

.card h2 {
  font-size: 22px;
  font-weight: 600;
}

.card p {
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.5;
  flex-grow: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn .arrow {
  transition: transform var(--transition);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--uc-yellow);
  color: var(--uc-blue);
  box-shadow: 0 8px 24px rgba(254, 198, 13, 0.25);
}

.btn-primary:hover {
  background: var(--uc-darkyellow);
  box-shadow: 0 10px 28px rgba(254, 198, 13, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn-secondary:hover {
  background: var(--uc-blue);
  border-color: var(--uc-blue);
}

.btn.btn-disabled {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  box-shadow: none;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.btn-disabled .arrow {
  opacity: 0.5;
}

.support-link {
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 2px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--card-accent) 45%, rgba(255, 255, 255, 0.14));
  background: color-mix(in srgb, var(--card-accent) 14%, transparent);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), transform var(--transition),
    box-shadow var(--transition);
}

.support-link-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--card-accent);
}

.support-link .arrow {
  font-size: 12px;
  transition: transform var(--transition);
}

.support-link:hover {
  background: color-mix(in srgb, var(--card-accent) 32%, transparent);
  border-color: var(--card-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -8px var(--card-accent);
}

.support-link:hover .arrow {
  transform: translateX(3px);
}

.footer {
  color: var(--color-text-muted);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 480px) {
  .container {
    padding: 32px 16px;
    gap: 32px;
  }

  .card {
    padding: 24px 20px;
  }
}