/* ==========================================================================
   Sorpresas3D.com - Hoja de Estilos Principal (Edición Especial Navidad 🎄)
   Ambiente cálido navideño: Pino Noche, Rojo Terciopelo y Dorado Imperial
   ========================================================================== */

:root {
  --bg-dark: #07110e;
  --bg-card: #0d1b16;
  --bg-card-hover: #132720;
  --bg-surface: #152922;
  --text-main: #fefce8;
  --text-muted: #cbd5e1;
  --xmas-red: #dc2626;
  --xmas-red-dark: #991b1b;
  --xmas-gold: #f59e0b;
  --xmas-gold-light: #fde68a;
  --xmas-pine: #065f46;
  --border-gold: rgba(245, 158, 11, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* Fondo atmosférico navideño con bokeh cálido dorado, rojo y verde abeto */
body.xmas-theme {
  background-color: #07100d;
  background-image:
    radial-gradient(circle at 15% 12%, rgba(220, 38, 38, 0.16) 0%, transparent 38%),
    radial-gradient(circle at 85% 18%, rgba(245, 158, 11, 0.15) 0%, transparent 36%),
    radial-gradient(circle at 50% 55%, rgba(6, 95, 70, 0.22) 0%, transparent 48%),
    radial-gradient(circle at 80% 85%, rgba(220, 38, 38, 0.12) 0%, transparent 40%),
    linear-gradient(180deg, #07110e 0%, #091712 50%, #060e0b 100%);
  background-attachment: fixed;
}

/* Cinta superior estilo bastón de caramelo / lazo navideño dorado y rojo */
.xmas-top-ribbon {
  background: linear-gradient(90deg, #7f1d1d 0%, #b91c1c 25%, #d97706 50%, #b91c1c 75%, #7f1d1d 100%);
  border-bottom: 1px solid rgba(253, 230, 138, 0.35);
  box-shadow: 0 4px 20px rgba(185, 28, 28, 0.35);
}

/* Guirnalda de luces de Navidad bajo la cabecera */
.xmas-lights-garland {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 4px 12px 6px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(6, 78, 59, 0.55) 0%, transparent 100%);
  border-top: 1px solid rgba(245, 158, 11, 0.22);
  pointer-events: none;
}

.xmas-bulb {
  width: 9px;
  height: 12px;
  border-radius: 50% 50% 50% 50% / 40% 40% 60% 60%;
  position: relative;
  animation: twinkleBulb 2.6s infinite ease-in-out alternate;
}

.xmas-bulb::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 2px;
  width: 5px;
  height: 3px;
  background: #94a3b8;
  border-radius: 1px;
}

.xmas-bulb.gold {
  background: #fbbf24;
  box-shadow: 0 0 12px 3px rgba(251, 191, 36, 0.75);
  animation-delay: 0s;
}

.xmas-bulb.red {
  background: #ef4444;
  box-shadow: 0 0 12px 3px rgba(239, 68, 68, 0.75);
  animation-delay: 0.7s;
}

.xmas-bulb.green {
  background: #10b981;
  box-shadow: 0 0 12px 3px rgba(16, 185, 129, 0.75);
  animation-delay: 1.4s;
}

.xmas-bulb.warm {
  background: #fef08a;
  box-shadow: 0 0 14px 3px rgba(254, 240, 138, 0.8);
  animation-delay: 2.0s;
}

@keyframes twinkleBulb {
  0% {
    opacity: 0.45;
    transform: scale(0.92);
  }
  100% {
    opacity: 1;
    transform: scale(1.08);
  }
}

/* Copos de nieve cayendo suavemente en segundo plano */
#snow-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  overflow: hidden;
}

.snowflake {
  position: absolute;
  top: -24px;
  color: rgba(255, 255, 255, 0.55);
  user-select: none;
  pointer-events: none;
  animation-name: snowfall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  text-shadow: 0 0 6px rgba(253, 230, 138, 0.45);
}

@keyframes snowfall {
  0% {
    transform: translateY(-20px) translateX(0px) rotate(0deg);
  }
  50% {
    transform: translateY(50vh) translateX(18px) rotate(180deg);
  }
  100% {
    transform: translateY(105vh) translateX(-12px) rotate(360deg);
  }
}

/* Tarjetas de producto con acabado navideño cálido */
.xmas-product-card {
  background: linear-gradient(165deg, rgba(16, 36, 29, 0.92) 0%, rgba(10, 22, 18, 0.96) 100%);
  border: 1px solid rgba(245, 158, 11, 0.22);
  box-shadow: 0 14px 34px -10px rgba(0, 0, 0, 0.65);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.xmas-product-card:hover {
  transform: translateY(-5px);
  border-color: rgba(251, 191, 36, 0.65);
  box-shadow: 0 20px 42px -12px rgba(220, 38, 38, 0.28), 0 0 22px -4px rgba(245, 158, 11, 0.22);
}

/* Texturas simuladas de filamento 3D (efecto capas FDM sutil) */
.fdm-layer-texture {
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.03) 0px,
    rgba(255, 255, 255, 0.03) 1px,
    transparent 1px,
    transparent 3px
  );
}

/* Swatches de filamento con acabados reales (Mate, Seda, Dual, Mármol) */
.swatch-btn {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 9999px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.swatch-btn:hover {
  transform: scale(1.12);
}

.swatch-btn.active {
  border-color: #fde68a;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.75), 0 0 12px rgba(251, 191, 36, 0.6);
  transform: scale(1.12);
}

/* Brillo para filamentos PLA Silk (Seda) */
.swatch-silk::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  background: linear-gradient(135deg, rgba(255,255,255,0.55) 0%, transparent 45%, rgba(0,0,0,0.25) 100%);
  pointer-events: none;
}

/* Efecto mármol */
.swatch-marble {
  background-image: radial-gradient(rgba(30, 41, 59, 0.45) 1px, transparent 0),
                    radial-gradient(rgba(71, 85, 105, 0.35) 1px, transparent 0);
  background-size: 8px 8px;
  background-position: 0 0, 4px 4px;
}

/* Animación suave para la vista previa 3D */
@keyframes floatPreview {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-5px);
  }
}

.preview-float {
  animation: floatPreview 4s ease-in-out infinite;
}

/* Scrollbar personalizada navideña */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #07110e;
}

::-webkit-scrollbar-thumb {
  background: #991b1b;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #dc2626;
}