/* =========================================================
   FRANCISCO — estilos
   Paleta: marfil + negro. Sin librerías, sin fuentes externas
   (usa la fuente del sistema para que cargue instantáneo).
   ========================================================= */

:root {
  --ivory: #f4f0e7;
  --ink: #17140f;
  --line: #d9d2c2;
  --muted: rgba(23, 20, 15, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.card {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 8vh 28px calc(env(safe-area-inset-bottom, 0px) + 32px);
  max-width: 420px;
  margin: 0 auto;

  opacity: 0;
  transform: translateY(10px);
  animation: reveal 0.7s ease-out forwards;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.logo {
  width: min(78vw, 300px);
  height: auto;
  display: block;
}

.divider {
  width: 32px;
  height: 1px;
  background: var(--ink);
  opacity: 0.5;
  margin: 40px 0 36px;
}

.links {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* El atributo HTML "hidden" debe ganar siempre, aunque .btn use display:flex */
.links [hidden] {
  display: none !important;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 15px 20px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  background: transparent;
  transition: transform 0.15s ease, opacity 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn:active {
  transform: scale(0.97);
  opacity: 0.7;
}

/* El botón "Sitio oficial" se ve más discreto mientras no hay sitio */
.btn-quiet {
  border-color: var(--line);
  color: var(--muted);
}

/* Hover solo en dispositivos con puntero real (no afecta al tacto en celular) */
@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    background: var(--ink);
    color: var(--ivory);
  }

  .btn-quiet:hover {
    background: var(--ink);
    color: var(--ivory);
    border-color: var(--ink);
  }
}

.footer {
  margin-top: 44px;
  margin-bottom: 0;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .card {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .btn {
    transition: none;
  }
}