/* ============================================
   NÓVA — Carta Digital · Carrusel + compacto
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg-0: #0a0908;
  --bg-1: #131110;
  --ink: #f3ece2;
  --ink-dim: rgba(243, 236, 226, 0.55);
  --ink-faint: rgba(243, 236, 226, 0.18);
  --accent: #d4a056;
  --accent-soft: rgba(212, 160, 86, 0.12);
  --accent-hot: #ff7a45;
  --line: rgba(243, 236, 226, 0.1);

  --card-perspective: 1200px;
  --card-z-offset: 18px;
  --card-y-offset: 14px;
  --card-scale-step: 0.05;
  --card-max-z: 100;
  --card-swap-duration: 0.6s;
  --swipe-x: 0px;
  --swipe-rotate: 0deg;
  --parallax-x: 0px;

  /* Carrusel */
  --carousel-track-x: 0px;

  --font-display: 'Fraunces', 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior: none;
}

body {
  background: radial-gradient(ellipse at top, #1c1816 0%, var(--bg-0) 55%, #050403 100%);
  position: fixed;
  inset: 0;
}

/* Grano + viñeta */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.5 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 180px 180px;
  animation: grain 8s steps(6) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-8px, 4px); }
  40% { transform: translate(6px, -6px); }
  60% { transform: translate(-4px, -8px); }
  80% { transform: translate(8px, 6px); }
}

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.55) 100%);
}

/* ============================================
   App container
   El carrusel está fixed al fondo (fuera del flujo).
   La app reserva espacio inferior con padding-bottom.
   ============================================ */
:root {
  /* Altura total del carrusel fijo (incluye safe-area) */
  --carousel-h: 78px;
}

.app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  /* Usamos varias unidades en cascada — la última que el browser
     entienda es la que aplica. dvh es la más confiable en iOS porque
     se actualiza dinámicamente con la barra de Safari. */
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  height: 100vh;
  height: 100svh;
  height: 100dvh;
  padding-top: calc(var(--safe-top) + 10px);
  padding-left: 20px;
  padding-right: 20px;
  /* Reservar espacio para el carrusel + safe-area inferior */
  padding-bottom: calc(var(--carousel-h) + var(--safe-bottom));
  max-width: 480px;
  margin: 0 auto;
}

/* Brand header — más compacto */
.brand {
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.brand__mark {
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-hot);
  box-shadow: 0 0 12px var(--accent-hot);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.18em;
  font-variation-settings: "opsz" 144;
}

.brand__right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__line {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
}

.sound-toggle {
  background: none;
  border: 1px solid var(--ink-faint);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-dim);
  cursor: pointer;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  position: relative;
  flex-shrink: 0;
}

.sound-toggle:hover,
.sound-toggle[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.sound-toggle__icon {
  width: 13px;
  height: 13px;
  position: absolute;
  transition: opacity 0.25s ease;
}

.sound-toggle__icon--on { opacity: 0; }
.sound-toggle[aria-pressed="true"] .sound-toggle__icon--off { opacity: 0; }
.sound-toggle[aria-pressed="true"] .sound-toggle__icon--on { opacity: 1; }

/* ============================================
   META — counter + progress en UNA línea
   ============================================ */
.meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0 8px;
}

.counter {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--ink-dim);
  display: flex;
  align-items: baseline;
  gap: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}

.counter__current {
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
}

.counter__sep { opacity: 0.4; }
.counter__total { font-size: 10px; }

.progress {
  flex: 1;
  display: flex;
  gap: 3px;
  height: 1.5px;
}

.progress__seg {
  flex: 1;
  height: 100%;
  background: var(--ink-faint);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.progress__seg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ink-faint);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 500ms ease, background-color 400ms ease, box-shadow 400ms ease;
}

.progress__seg.is-active::after {
  transform: scaleX(1);
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.progress__seg.is-done::after {
  transform: scaleX(1);
  background: var(--ink-dim);
  box-shadow: none;
}

/* ============================================
   Stage
   ============================================ */
.stage {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 0;
  overflow: hidden;
}

.card-stack {
  position: relative;
  width: min(100%, 100%);
  max-width: 380px;
  height: 100%;
  max-height: 100%;
  aspect-ratio: 3 / 4.3;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
  transform-style: preserve-3d;
  perspective: var(--card-perspective);
}

/* ============================================
   Cards
   ============================================ */
.card {
  position: absolute;
  inset: 0;
  border-radius: 22px;
  overflow: hidden;
  cursor: grab;
  background: var(--bg-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  z-index: calc(var(--card-max-z) - var(--i));
  transform:
    translateZ(calc(-1 * var(--card-z-offset) * var(--i)))
    translateY(calc(var(--card-y-offset) * var(--i)))
    scale(calc(1 - var(--card-scale-step) * var(--i)))
    translateX(var(--swipe-x, 0px))
    rotate(var(--swipe-rotate, 0deg));
  transition:
    transform var(--card-swap-duration) cubic-bezier(0.22, 1, 0.36, 1),
    opacity var(--card-swap-duration) ease,
    filter var(--card-swap-duration) ease,
    box-shadow var(--card-swap-duration) ease;
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-style: preserve-3d;
  box-shadow:
    0 30px 60px -20px rgba(0, 0, 0, 0.7),
    0 18px 36px -18px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  filter: brightness(calc(1 - 0.12 * var(--i)));
}

.card:active { cursor: grabbing; }

.card__media-wrap {
  position: absolute;
  inset: -8%;
  overflow: hidden;
  transform: scale(1.06);
  transition: transform 1100ms cubic-bezier(0.16, 1, 0.3, 1);
}

.card__media-wrap.is-loaded { transform: scale(1); }

.card__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
  filter: blur(12px);
  opacity: 0;
  transform: translateX(var(--parallax-x, 0px));
  transition:
    opacity 750ms cubic-bezier(0.4, 0, 0.2, 1),
    filter 950ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, filter, transform;
}

.card__media.is-loaded {
  filter: blur(0);
  opacity: 1;
}

.card::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(10, 9, 8, 0.35) 30%,
    rgba(10, 9, 8, 0.82) 65%,
    rgba(10, 9, 8, 0.96) 100%);
  z-index: 2;
  pointer-events: none;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0) 25%);
  z-index: 2;
  pointer-events: none;
}

.card__corner {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.7);
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background: rgba(0, 0, 0, 0.15);
}

.card__tag {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--accent);
  padding: 5px 9px;
  border: 1px solid var(--accent);
  border-radius: 100px;
  background: var(--accent-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card__content {
  position: absolute;
  bottom: 16px;
  left: 18px;
  right: 18px;
  z-index: 3;
  color: var(--ink);
}

.card__category {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 7px;
}

.card__name-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.card__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 6vw, 26px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 144;
  color: var(--ink);
  font-style: italic;
  margin: 0;
  flex: 1;
  min-width: 0;
}

.card__price {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--accent);
  white-space: nowrap;
  padding-bottom: 2px;
}

/* Drag indicators */
.drag-indicator {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
}

.drag-indicator svg { width: 18px; height: 18px; }

.drag-indicator--prev {
  left: 8px;
  transform: translate(-12px, -50%);
}

.drag-indicator--next {
  right: 8px;
  transform: translate(12px, -50%);
}

.drag-indicator.is-visible {
  opacity: 1;
  transform: translate(0, -50%);
}

.drag-indicator__label { opacity: 0.7; }

/* ============================================
   CARRUSEL DE CATEGORÍAS
   ============================================ */
/* ============================================
   CARRUSEL — fixed al fondo del viewport
   Solución definitiva: fuera del flujo, anclado abajo,
   nunca puede ser empujado fuera de la pantalla.
   ============================================ */
.carousel {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  height: calc(var(--carousel-h) + var(--safe-bottom));
  padding-top: 14px;
  padding-bottom: calc(var(--safe-bottom) + 12px);
  /* Fondo con fade superior para fundirse con el contenido */
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(10, 9, 8, 0.85) 25%,
    rgba(10, 9, 8, 0.98) 60%,
    var(--bg-0) 100%);
  /* Garantizar visibilidad: nada puede taparlo */
  pointer-events: auto;
}

/* Centrado horizontal igual que el resto del contenido */
.carousel::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.carousel__viewport {
  position: relative;
  height: 46px;
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  /* fade lateral */
  -webkit-mask-image: linear-gradient(to right,
    transparent 0%, black 14%, black 86%, transparent 100%);
  mask-image: linear-gradient(to right,
    transparent 0%, black 14%, black 86%, transparent 100%);
}

.carousel__viewport:active { cursor: grabbing; }

.carousel__track {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 6px;
  transform: translate(calc(-50% + var(--carousel-track-x, 0px)), -50%);
  will-change: transform;
}

.carousel__track.is-snapping {
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel__btn {
  /* base */
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--ink-faint);
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 100px;
  cursor: pointer;
  white-space: nowrap;
  /* transición a estados */
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.4s ease,
    color 0.35s ease,
    border-color 0.35s ease,
    background 0.35s ease,
    box-shadow 0.35s ease,
    font-size 0.35s ease,
    padding 0.35s ease,
    letter-spacing 0.35s ease;
  /* distancia-based defaults (sobreescritos por modificadores) */
  opacity: 0.12;
  transform: scale(0.55);
}

/* Niveles de distancia al centro — manejados con clases */
.carousel__btn[data-dist="0"] {  /* ACTIVO */
  opacity: 1;
  transform: scale(1);
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 18px rgba(212, 160, 86, 0.25),
              inset 0 0 0 1px rgba(212, 160, 86, 0.1);
  padding: 10px 20px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.carousel__btn[data-dist="1"] {  /* adyacente */
  opacity: 0.6;
  transform: scale(0.85);
  color: var(--ink-dim);
  border-color: rgba(243, 236, 226, 0.2);
}

.carousel__btn[data-dist="2"] {  /* lejano */
  opacity: 0.28;
  transform: scale(0.68);
}

.carousel__btn[data-dist="3"] {  /* muy lejano */
  opacity: 0.12;
  transform: scale(0.55);
}

/* ============================================
   Entrada inicial (one-shot)
   ============================================ */
@keyframes cardEnter {
  from {
    opacity: 0;
    transform:
      translateZ(calc(-1 * var(--card-z-offset) * var(--i) - 40px))
      translateY(calc(var(--card-y-offset) * var(--i) + 30px))
      scale(calc(1 - var(--card-scale-step) * var(--i)));
  }
}

.card-stack.is-entering .card {
  animation: cardEnter 0.7s cubic-bezier(0.22, 1, 0.36, 1) backwards;
  animation-delay: calc(var(--i) * 0.08s);
}