/* ============================================================
   SISTEMA DE BOTONES — glamour, glass y móvil minimalista
   Reglas:
   - Sobre video/foto  -> SIEMPRE .btn--glass (transparente)
   - Sobre fondo sólido -> .btn--primary / .btn--gold / .btn--ghost
   - En móvil todos se aplanan: sin gradiente pesado, sin glow fuerte
   ============================================================ */

.btn {
  --_h: 54px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: var(--_h);
  padding: 0 1.9rem;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: .93rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
  transition: transform var(--t) var(--ease),
              box-shadow var(--t) var(--ease),
              background-color var(--t) var(--ease),
              border-color var(--t) var(--ease),
              color var(--t) var(--ease);
}
.btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.btn:active { transform: translateY(1px) scale(.99); }

/* Brillo que barre el botón al hover (el "glamour") */
.btn::after {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, transparent 20%, rgba(255,255,255,.38) 50%, transparent 80%);
  transform: translateX(-120%);
  transition: transform .75s var(--ease-out-expo);
}
.btn:hover::after { transform: translateX(120%); }

/* ---------- 1. PRIMARY — gradiente turquesa + glow ---------- */
.btn--primary {
  background: var(--grad-brand);
  color: #06333A;                 /* verde petróleo: AA sobre el aqua claro */
  box-shadow: var(--glow-brand);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 42px -10px rgba(63,199,180,.65);
}

/* Variante cálida: amarillo sol → coral. Para "Reservar ahora". */
.btn--sun { background: var(--grad-sun); color: #4A2412; box-shadow: 0 8px 26px -8px rgba(255,138,107,.45); }
.btn--sun:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -10px rgba(255,138,107,.6); }

/* ---------- 2. GLASS — OBLIGATORIO sobre video o foto ---------- */
.btn--glass {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-color: var(--glass-border);
  color: var(--glass-text);
  box-shadow: var(--glass-shadow);
  text-shadow: 0 1px 10px rgba(10,40,45,.45); /* legibilidad SIN oscurecer la foto */
}
.btn--glass:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255,255,255,.75);
  transform: translateY(-2px);
}
/* Glass sólido: blanco lechoso, cuando el fondo es muy claro y el borde se pierde */
.btn--glass-solid {
  background: rgba(255,255,255,.9);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-color: rgba(255,255,255,.9);
  color: var(--text);
  box-shadow: var(--glass-shadow);
}
.btn--glass-solid:hover { background: #fff; transform: translateY(-2px); }

/* Fallback si el navegador no soporta backdrop-filter */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .btn--glass { background: rgba(18,48,55,.45); }
}

/* ---------- 3. GOLD editorial — para hoteles, bodas, restaurantes ---------- */
.btn--gold {
  background: transparent;
  border-color: var(--gold);
  color: var(--gold);
  font-family: var(--font-editorial);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.btn--gold:hover {
  background: var(--gold);
  color: #12100B;
  box-shadow: var(--glow-gold);
  transform: translateY(-2px);
}

/* ---------- 4. GHOST — acción secundaria ---------- */
.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn--ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
  box-shadow: var(--glow-soft);
}

/* ---------- 5. WHATSAPP ---------- */
.btn--wa { background: #25D366; color: #05230F; box-shadow: 0 8px 26px -8px rgba(37,211,102,.5); }
.btn--wa:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -8px rgba(37,211,102,.65); }
.btn--wa svg { width: 20px; height: 20px; fill: currentColor; }

/* ---------- Tamaños ---------- */
.btn--lg { --_h: 62px; padding: 0 2.6rem; font-size: 1rem; }
.btn--sm { --_h: 42px; padding: 0 1.25rem; font-size: .8rem; }
.btn--block { width: 100%; }

/* ============================================================
   MÓVIL — minimalista
   Sin gradientes complejos, sin glow pesado, sin uppercase apretado.
   Radio menor, ancho completo, jerarquía por color plano.
   ============================================================ */
@media (max-width: 768px) {
  .btn {
    --_h: 52px;
    width: 100%;
    padding: 0 1.25rem;
    border-radius: var(--r);
    font-size: .95rem;
    font-weight: 600;
    letter-spacing: .01em;
    text-transform: none;      /* más legible y menos ruidoso */
  }
  .btn::after { display: none; }        /* sin barrido en móvil */
  .btn:hover { transform: none; }       /* no hay hover real en táctil */

  .btn--primary {
    background: var(--brand);            /* color plano, no gradiente */
    box-shadow: none;
  }
  .btn--sun { background: var(--sun); box-shadow: none; }
  .btn--glass {
    background: rgba(255,255,255,.20);
    border-color: rgba(255,255,255,.55);
    box-shadow: none;
  }
  .btn--gold { letter-spacing: .06em; font-size: .95rem; }
  .btn--lg, .btn--sm { --_h: 52px; font-size: .95rem; padding: 0 1.25rem; }

  /* Grupo de botones apilado */
  .btn-group { display: grid; gap: .7rem; width: 100%; }
}

/* ============================================================
   CTA MÓVIL = LOS DOS BOTONES DEL HERO (Reservar + WhatsApp)
   lado a lado, minimalistas (ver .hero__actions en styles.css).
   NO hay barra fija inferior: no tapa contenido ni hace bailar
   el layout con el teclado de iOS.
   ============================================================ */

/* ============================================================
   BOTÓN ICONO (flechas de slider, cerrar, idioma)
   ============================================================ */
.icon-btn {
  display: inline-grid; place-items: center;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg-3);
  color: var(--text);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease), border-color var(--t) var(--ease);
}
.icon-btn:hover { border-color: var(--brand); color: var(--brand-deep); transform: scale(1.06); }

/* Sobre foto o video */
.icon-btn--glass {
  border-color: var(--glass-border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: var(--glass-text);
  box-shadow: var(--glass-shadow);
}
.icon-btn--glass:hover { background: var(--glass-bg-hover); color: var(--glass-text); }
.icon-btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.icon-btn svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; }

@media (max-width: 768px) {
  .icon-btn { width: var(--tap); height: var(--tap); }
}

/* ============================================================
   BOTONES CRISTALINOS — se montan SOBRE .btn--glass.
   Colores claritos y luminosos (verde agua / azul cielo) con brillo
   interior y glow exterior. Mismo look en escritorio y en móvil:
   sobre video, un botón opaco y plano se ve barato.
   Uso: class="btn btn--glass btn--crystal-wa"
   ============================================================ */
.btn--crystal-wa {
  background: linear-gradient(180deg, rgba(255,255,255,.5) 0%, rgba(134,239,172,.62) 45%, rgba(74,222,128,.66) 100%) !important;
  border-color: rgba(255, 255, 255, .75) !important;
  color: #0A3D2C !important;
  text-shadow: 0 1px 0 rgba(255,255,255,.5) !important;
  box-shadow: 0 0 26px rgba(110, 231, 183, .65), inset 0 1px 0 rgba(255,255,255,.8) !important;
}
.btn--crystal-wa:hover {
  background: linear-gradient(180deg, rgba(255,255,255,.6) 0%, rgba(134,239,172,.78) 45%, rgba(74,222,128,.82) 100%) !important;
  box-shadow: 0 0 36px rgba(110, 231, 183, .85), inset 0 1px 0 rgba(255,255,255,.9) !important;
}

.btn--crystal-book {
  background: linear-gradient(180deg, rgba(255,255,255,.5) 0%, rgba(147,197,253,.62) 45%, rgba(96,165,250,.66) 100%) !important;
  border-color: rgba(255, 255, 255, .75) !important;
  color: #0C2E52 !important;
  text-shadow: 0 1px 0 rgba(255,255,255,.5) !important;
  box-shadow: 0 0 26px rgba(127, 201, 232, .7), inset 0 1px 0 rgba(255,255,255,.8) !important;
}
.btn--crystal-book:hover {
  background: linear-gradient(180deg, rgba(255,255,255,.6) 0%, rgba(147,197,253,.78) 45%, rgba(96,165,250,.82) 100%) !important;
  box-shadow: 0 0 36px rgba(127, 201, 232, .9), inset 0 1px 0 rgba(255,255,255,.9) !important;
}