/* ========= Variables del tema ========= */
:root{
  --bg: #0b1220;
  --bg-soft:#101827;
  --text:#e6eaf2;
  --muted:#9aa3b2;
  --card:#121a2b;
  --border:#22304a;
  --accent:#e63946;     /* feriados */
  --today:#2a9d8f;      /* hoy */
  --focus:#93c5fd;      /* anillo de foco accesible */
}

/* Modo claro por defecto si el body no tiene .dark */
body:not(.dark){
  --bg:#f6f7fb;
  --bg-soft:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --card:#ffffff;
  --border:#e2e8f0;
  --accent:#d62828;
  --today:#0ea5e9;
  --focus:#2563eb;
}

*{box-sizing:border-box}
html,body{height:100%}

/* ====== BODY con imagen de playa ====== */
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  color:var(--text);
  line-height:1.45;

  background: url("imagenes/playa.jpg") no-repeat center center fixed;
  background-size: cover;
  position: relative;
}

/* Overlay para mejorar legibilidad */
body::before{
  content:"";
  position:fixed; inset:0;
  background: rgba(0,0,0,0.45);
  z-index:-1;
}

/* ========= Accesibilidad ========= */
.sr-only{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  clip:rect(0 0 0 0);overflow:hidden;
}

/* ========= Hero con gradiente rojo-blanco-azul (50% transparencia) ========= */
.hero{
  min-height: 42vh;
  background: linear-gradient(
    to right,
    rgba(214, 40, 40, 0.5) 0%,   /* rojo 50% */
    rgba(255, 255, 255, 0.5) 33%,/* blanco 50% */
    rgba(0, 63, 136, 0.5) 66%    /* azul 50% */
  );
  position: relative;
}

/* Overlay del hero */
.hero__overlay{
  width:100%;height:100%;
  padding: clamp(16px, 3vw, 32px);
  background: rgba(0,0,0,0.2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;color:#fff;
}
.hero__subtitle{margin:0;color:#e5e7eb}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.btn{
  border:1px solid var(--border);
  background:var(--bg-soft);
  color:var(--text);
  padding:.6rem 1rem;
  border-radius:12px;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}

/* ========= Layout ========= */
.container{max-width:1200px;margin:24px auto;padding:0 16px}

/* 🎨 Contenedor principal con azul al 50% */
#main.container {
  background-color: rgba(0, 63, 136, 0.5);
  padding: 24px 16px;
  border-radius: 12px;
}

/* ========= Leyenda (mejorada con panel translúcido) ========= */
.legend{
  display:flex;gap:18px;flex-wrap:wrap;align-items:center;
  font-size:.95rem;margin:16px 0 8px;
  padding: 10px 14px;
  border-radius: 12px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 20px rgba(0,0,0,.18);
}
body:not(.dark) .legend{
  background: rgba(255,255,255,.85);
  color: #0f172a;
  border: 1px solid rgba(0,0,0,.08);
}
body.dark .legend{
  background: rgba(0,0,0,.45);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
}
.legend p{display:flex;gap:8px;align-items:center;margin:0}
.dot{display:inline-block;width:1rem;height:1rem;border-radius:50%;border:1px solid var(--border)}
.dot--holiday{background:var(--accent)}
.dot--today{background:var(--today)}

/* ========= Calendario ========= */
.calendar{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap:16px;
}

/* 📅 Tarjetas de cada mes */
.month{
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
body.dark .month{
  background: rgba(18, 26, 43, 0.5);
}

.month__header{
  padding:10px 14px;
  border-bottom:1px solid var(--border);
  font-weight:600;
  display:flex;align-items:center;justify-content:space-between;
  background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(0,0,0,0.04));
}
.month__grid{
  display:grid;
  grid-template-columns: repeat(7, 1fr);
  padding:12px;
  gap:8px;
}
.month__dow, .day{
  text-align:center;
  padding:.45rem 0;
}
.month__dow{
  color:var(--muted);
  font-size:.85rem;
}

/* Celdas de día */
.day{
  border:1px solid var(--border);
  border-radius:10px;
  min-height:52px;
  display:flex;align-items:center;justify-content:center;
  position:relative;
  background: var(--bg-soft);
  outline: none;
}
.day time{font: inherit;color:inherit}
.day:focus-visible{ box-shadow: 0 0 0 3px var(--focus); }
.day--blank{ background:transparent;border-color:transparent; }
.day--holiday{
  background:var(--accent);
  color:#fff;font-weight:600;border-color: transparent;
}
/* 🔵 Hoy mejorado */
.day--today time{
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 4px rgba(0,0,0,0.8),
               0 0 6px rgba(0,0,0,0.6);
  border-radius: 50%;
  padding: 4px 8px;
  background: rgba(14,165,233,0.75);
}

/* Tooltip accesible */
.day[data-tooltip]::after{
  content: attr(data-tooltip);
  position:absolute;
  bottom: calc(100% + 8px);
  left:50%;transform:translateX(-50%);
  background:#111827;color:#e5e7eb;
  padding:.35rem .55rem;font-size:.8rem;border-radius:8px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity .12s ease, transform .12s ease;
  border:1px solid #374151;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.day[data-tooltip]:hover::after,
.day[data-tooltip]:focus-visible::after{
  opacity:1;transform:translateX(-50%) translateY(-2px);
}

/* ========= Footer (mejorado) ========= */
.footer{
  margin: 24px auto 48px;
  padding: 14px 16px;
  border-radius: 12px;
  max-width: 1200px;
  width: calc(100% - 32px);
  text-align: center;
  line-height: 1.5;

  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 6px 20px rgba(0,0,0,.18);
}
body:not(.dark) .footer{
  background: rgba(255,255,255,.9);
  color: #0f172a;
  border: 1px solid rgba(0,0,0,.08);
}
body.dark .footer{
  background: rgba(0,0,0,.55);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
}
.footer a{
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}
.footer a:hover{ opacity:.9 }

/* ========= Impresión ========= */
@media print{
  .hero, .hero__actions, #legend, .footer{ display:none !important; }
  body{ background:#fff;color:#000 }
  .month{ break-inside: avoid; border:1px solid #ddd }
  .month__header{ background:#f5f5f5 }
}

/* ========= Responsivo fino ========= */
@media (max-width: 480px){
  .hero__subtitle{font-size:.95rem}
  .btn{padding:.55rem .85rem}
}
/* ===== Imágenes laterales del header ===== */
/* ===== Imágenes laterales del header con animación fade in ===== */
.hero{
  position: relative;
  overflow: hidden;
}

/* Animación */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-50%) scale(0.9);
  }
  to {
    opacity: 0.5; /* mantiene 50% transparencia */
    transform: translateY(-50%) scale(1);
  }
}

.hero-img{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  max-height: 250px;
  width: auto;
  height: auto;
  opacity: 0;                     /* inicia invisible */
  pointer-events: none;
  z-index: 1;

  animation: fadeIn 2s ease forwards;
}

.hero-img-left{
  left: 20px;             /* margen izquierdo */
  animation-delay: 0.3s;  /* aparece primero */
}
.hero-img-right{
  right: 20px;            /* margen derecho */
  animation-delay: 0.8s;  /* aparece después */
}

/* Ajustes responsivos */
@media (max-width: 768px){
  .hero-img{ max-height: 120px; opacity: 0.45; }
}
@media (max-width: 480px){
  .hero-img{ display: none; }
}