:root {
  --bg: #070910;
  --panel: #0e111a;
  --text: #f5f0e6;
  --muted: #ada99f;
  --line: rgba(255,255,255,.12);
  --gold: #d6b978;
  --radius: 22px;
}
* { box-sizing: border-box; }
html { background: #02030a; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(79,62,119,.2), transparent 35%),
    #02030a;
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}
button { font: inherit; }
.app-shell {
  width: min(100%, 540px);
  min-height: 100svh;
  margin: 0 auto;
  background: var(--bg);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 80px rgba(0,0,0,.65);
}
.hero {
  height: 42svh;
  min-height: 380px;
  max-height: 520px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('assets/cabecera-tarjetas-magicas.png');
  background-size: cover;
  background-position: 50% 42%;
  transform: scale(1.04);
  animation: breathe 14s ease-in-out infinite alternate;
}
@keyframes breathe { to { transform: scale(1.1) translateY(-1%); } }
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5,6,12,.5), rgba(5,6,12,.16) 35%, rgba(7,9,16,.92) 100%),
    radial-gradient(circle at 70% 30%, transparent, rgba(0,0,0,.22));
}
.topbar {
  position: relative;
  z-index: 3;
  padding: calc(14px + env(safe-area-inset-top)) 18px 0;
  display: grid;
  grid-template-columns: 42px 1fr 42px;
  align-items: center;
}
.icon-btn, .viewer-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.24);
  background: rgba(6,8,14,.35);
  color: white;
  backdrop-filter: blur(12px);
  display: grid;
  place-items: center;
  cursor: pointer;
}
.icon-btn svg, .viewer-btn svg {
  width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.brand { display:flex; justify-content:center; gap:8px; align-items:center; font-size:.72rem; letter-spacing:.28em; font-weight:600; }
.hero-content {
  position: absolute;
  z-index: 2;
  left: 24px;
  right: 24px;
  bottom: 32px;
}
.eyebrow, .section-kicker { text-transform: uppercase; letter-spacing: .2em; font-size: .62rem; color: var(--gold); font-weight: 600; }
h1, h2 { font-family: "Cormorant Garamond", Georgia, serif; margin: 0; }
h1 { font-size: clamp(3.6rem, 16vw, 5.6rem); line-height: .72; letter-spacing: -.04em; margin-top: 14px; text-shadow: 0 5px 30px rgba(0,0,0,.45); }
h1 em { font-weight:500; color:#eadbb6; }
.hero-content p { margin: 24px 0 0; max-width: 360px; color: rgba(255,255,255,.78); font-size: .9rem; line-height: 1.55; }
.hero-fade { position:absolute; left:0;right:0;bottom:-1px;height:70px;background:linear-gradient(transparent,var(--bg));z-index:2; }
.gallery-section { position:relative; z-index:4; padding: 12px 16px 34px; }
.section-heading { display:flex; align-items:flex-end; justify-content:space-between; padding: 4px 4px 18px; }
h2 { font-size: 2.1rem; font-weight:600; line-height:1; margin-top:4px; }
.count { border:1px solid var(--line); border-radius:999px; padding:7px 11px; color:var(--muted); font-size:.72rem; }
.cards-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.card {
  position:relative;
  aspect-ratio: 3 / 2;
  border:0;
  padding:0;
  border-radius: var(--radius);
  overflow:hidden;
  background:#151927;
  cursor:pointer;
  box-shadow: 0 12px 28px rgba(0,0,0,.28);
  isolation:isolate;
}
/* Todas las tarjetas conservan exactamente la misma proporción horizontal. */
.card img { width:100%;height:100%;object-fit:cover;display:block;transition: transform .65s cubic-bezier(.2,.7,.2,1), filter .4s; }
.card::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg,transparent 58%,rgba(0,0,0,.58)); z-index:1; }
.card-index { position:absolute; z-index:2; left:13px; bottom:12px; font-family:"Cormorant Garamond",serif; font-size:1.35rem; color:white; }
.card:hover img, .card:focus-visible img { transform:scale(1.06); filter:saturate(1.08); }
.card:focus-visible { outline:2px solid var(--gold); outline-offset:3px; }
.bottom-bar { border-top:1px solid var(--line); padding:18px 20px calc(18px + env(safe-area-inset-bottom)); color:#777b87; display:flex;justify-content:center;gap:8px;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase; }
.dot { color:var(--gold); }
.hidden { display:none; }
.viewer { position:fixed; inset:0; z-index:100; display:none; color:white; }
.viewer.open { display:block; animation: viewerIn .35s ease both; }
@keyframes viewerIn { from { opacity:0; } }
.viewer-backdrop { position:absolute; inset:0; background:rgba(1,2,7,.95); backdrop-filter: blur(18px); }
.viewer-stage { position:absolute; inset:0; display:grid; place-items:center; padding:74px 18px 54px; overflow:hidden; }
.viewer-toolbar { position:absolute; z-index:4; top:calc(15px + env(safe-area-inset-top)); left:16px; right:16px; display:grid; grid-template-columns:42px 1fr 42px; align-items:center; text-align:center; color:#bbbcc5; font-size:.75rem; letter-spacing:.12em; }
.viewer-figure { margin:0; width:100%; height:100%; display:grid; place-items:center; }
.viewer-figure img { width:min(100%, 1200px); aspect-ratio:3 / 2; max-height:100%; object-fit:contain; background:#090b12; border-radius:10px; box-shadow:0 28px 80px rgba(0,0,0,.55); user-select:none; -webkit-user-drag:none; animation:imageIn .45s cubic-bezier(.2,.7,.2,1); }
@keyframes imageIn { from { opacity:0; transform:scale(.96); } }
.nav-arrow { position:absolute; z-index:4; top:50%; transform:translateY(-50%); width:44px;height:64px;border:0;border-radius:999px;background:rgba(0,0,0,.28);color:white;font-size:2rem;backdrop-filter:blur(8px);cursor:pointer; }
.nav-arrow.prev { left:8px; } .nav-arrow.next { right:8px; }
.swipe-hint { position:absolute; bottom:calc(18px + env(safe-area-inset-bottom)); color:#858793; font-size:.68rem; letter-spacing:.08em; }
body.viewer-open { overflow:hidden; }
@media (min-width: 700px) {
  .app-shell { margin-block:24px; min-height:calc(100vh - 48px); border-radius:30px; }
}
@media (prefers-reduced-motion: reduce) { *,*::before,*::after { animation-duration:.01ms!important; animation-iteration-count:1!important; scroll-behavior:auto!important; transition-duration:.01ms!important; } }

/* V2 · selección ritual con reverso común y animación flip */
.card {
  overflow: visible;
  background: transparent;
  box-shadow: none;
  perspective: 1200px;
}
.card::after { display: none; }
.card-inner {
  position: absolute;
  inset: 0;
  display: block;
  transform-style: preserve-3d;
  transition: transform .72s cubic-bezier(.18,.78,.2,1);
  border-radius: var(--radius);
  box-shadow: 0 14px 34px rgba(0,0,0,.36);
}
.card.is-revealed .card-inner { transform: rotateY(180deg) scale(1.025); }
.card-face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.card-back {
  color: #f4e4b6;
  background:
    linear-gradient(145deg, rgba(8,12,24,.35), rgba(2,4,11,.82)),
    url('assets/cabecera-tarjetas-magicas.png') center / cover;
  border: 1px solid rgba(219,190,123,.46);
}
.card-back::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(234,208,150,.38);
  border-radius: calc(var(--radius) - 7px);
  box-shadow: inset 0 0 32px rgba(0,0,0,.48);
}
.card-back::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 42%, rgba(218,188,118,.18), transparent 34%);
}
.back-frame {
  position: absolute;
  width: 44%;
  aspect-ratio: 1;
  border: 1px solid rgba(234,208,150,.36);
  transform: rotate(45deg);
  border-radius: 18%;
}
.back-name { position: absolute; z-index: 2; top: 18%; font-size: .62rem; letter-spacing: .34em; font-weight: 600; }
.back-caption { position: absolute; z-index: 2; bottom: 17%; font-family: "Cormorant Garamond", Georgia, serif; font-size: 1.08rem; font-style: italic; }
.card-front { transform: rotateY(180deg); background: #090b12; border: 1px solid rgba(255,255,255,.18); }
.card-front img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-index { left: 13px; bottom: 11px; color: rgba(255,255,255,.78); }
.card:hover .card-inner, .card:focus-visible .card-inner { transform: translateY(-4px); box-shadow: 0 20px 42px rgba(0,0,0,.48); }
.card.is-revealed:hover .card-inner, .card.is-revealed:focus-visible .card-inner { transform: rotateY(180deg) scale(1.025); }
.card:focus-visible { outline: none; }
.card:focus-visible .card-inner { outline: 2px solid var(--gold); outline-offset: 4px; }