/* KC-Skeleton v3 · structure (CORE)
   Layout, estados, a11y y reduced-motion. Sin decisiones de piel:
   colores, tipos y formas viven en tokens.css y theme.css. */

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--kc-canvas);
  color: var(--kc-ink);
  font-family: var(--kc-font-body);
  font-size: var(--kc-text-base);
  line-height: var(--kc-leading-body);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, figure, blockquote { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
img, video { display: block; max-width: 100%; height: auto; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--kc-focus); outline-offset: 3px; }

.kc-visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Contenedores ──────────────────────────────────────── */
.kc-container {
  width: 100%;
  max-width: var(--kc-measure);
  margin-inline: auto;
  padding-inline: max(16px, env(safe-area-inset-left)) max(16px, env(safe-area-inset-right));
}
.kc-section { padding-block: var(--kc-section-pad); }

/* ── Gate (overlay) ────────────────────────────────────── */
body.is-gate-locked { overflow: hidden; }
.kc-gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: var(--kc-space-5);
  overflow: hidden;
  background: var(--kc-canvas);
}
.kc-gate[data-gate-state="opening"] {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--kc-gate-duration) ease;
}
.kc-gate[data-gate-state="opened"] { display: none; }
.kc-gate__scene { position: absolute; inset: 0; pointer-events: none; }
.kc-gate__body {
  position: relative;
  display: grid;
  justify-items: center;
  gap: var(--kc-space-3);
  text-align: center;
}
.kc-gate__open {
  min-width: 44px;
  min-height: 44px;
  padding: var(--kc-space-3) var(--kc-space-5);
}

/* ── Hero ──────────────────────────────────────────────── */
.kc-hero {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding-block: var(--kc-section-pad);
}
.kc-hero .kc-container { display: grid; justify-items: center; gap: var(--kc-space-3); }
.kc-hero__photo { width: 100%; max-width: 22rem; aspect-ratio: 4 / 5; overflow: hidden; }
.kc-hero__photo:empty { display: none; }
.kc-hero__photo img { width: 100%; height: 100%; object-fit: cover; }

/* ── Títulos y bloques de texto ────────────────────────── */
.kc-eyebrow { margin-bottom: var(--kc-space-2); }
.kc-title { margin-bottom: var(--kc-space-5); text-wrap: balance; }
.kc-body { text-wrap: pretty; }

/* ── Counter ───────────────────────────────────────────── */
.kc-countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--kc-space-2);
}
.kc-countdown__unit { display: grid; justify-items: center; gap: var(--kc-space-1); min-width: 0; }
.kc-countdown__value { font-variant-numeric: tabular-nums; }

/* ── Familia ───────────────────────────────────────────── */
.kc-family { display: grid; gap: var(--kc-space-4); }
.kc-family__group { display: grid; gap: var(--kc-space-1); }
.kc-family + .kc-family { margin-top: var(--kc-space-5); }

/* ── Historia ──────────────────────────────────────────── */
.kc-story { display: grid; gap: var(--kc-space-6); }
.kc-story__item { display: grid; gap: var(--kc-space-2); }
.kc-story__photo { margin: 0; width: 100%; aspect-ratio: 4 / 3; overflow: hidden; }
.kc-story__photo img { width: 100%; height: 100%; object-fit: cover; }

/* Stack de fotos: las tarjetas comparten una celda de grid (apiladas),
   el botón y el contador van debajo en su propia fila. */
.kc-photo-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  gap: var(--kc-space-3);
  max-width: 22rem;
  margin-inline: auto;
}
.kc-photo-stack:focus-visible { outline: 2px solid var(--kc-focus); outline-offset: 4px; }
.kc-photo-stack__card {
  grid-area: 1 / 1;
  z-index: calc(100 - var(--kc-stack-i, 0));
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  margin: 0;
  overflow: hidden;
  transform:
    translate(calc(var(--kc-stack-i, 0) * 6px), calc(var(--kc-stack-i, 0) * 6px))
    rotate(var(--kc-stack-tilt, 0deg));
  transition: transform var(--kc-stack-duration) var(--kc-ease);
}
.kc-photo-stack__card img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.kc-photo-stack__next { grid-row: 2; min-width: 44px; min-height: 44px; }
.kc-photo-stack__next::before { content: "\203A"; font-size: 1.6rem; line-height: 1; }
.kc-photo-stack__count { grid-row: 3; text-align: center; }

/* ── Ubicaciones ───────────────────────────────────────── */
.kc-locations { display: grid; gap: var(--kc-space-4); }
@media (min-width: 48rem) {
  .kc-locations { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.kc-location { display: grid; gap: var(--kc-space-2); }
.kc-location__photo { margin: 0; width: 100%; aspect-ratio: 16 / 10; overflow: hidden; }
.kc-location__photo img { width: 100%; height: 100%; object-fit: cover; }
.kc-map-link { display: inline-flex; align-items: center; justify-self: start; min-height: 44px; }

/* ── Itinerario ────────────────────────────────────────── */
.kc-schedule { display: grid; gap: var(--kc-space-3); }
.kc-stop {
  display: grid;
  grid-template-columns: minmax(5.5rem, max-content) minmax(0, 1fr);
  gap: var(--kc-space-4);
  align-items: baseline;
}

/* ── Vestimenta ────────────────────────────────────────── */
.kc-swatches {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--kc-space-4);
}
.kc-swatch { display: grid; justify-items: center; gap: var(--kc-space-1); min-width: 4.5rem; }
.kc-swatch__drop {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--kc-swatch);
}

/* ── Regalos ───────────────────────────────────────────── */
.kc-registries { display: grid; gap: var(--kc-space-2); }
.kc-registry a { display: flex; align-items: center; justify-content: center; min-height: 44px; }
.kc-bank { display: grid; justify-items: center; gap: var(--kc-space-2); }
.kc-bank__clabe { font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.kc-bank button[data-kc-copy] { min-height: 44px; }
.kc-envelopes { display: grid; gap: var(--kc-space-2); }

/* ── RSVP (slot inerte: ids del bridge KC-Center) ──────── */
.kc-rsvp-form { display: grid; gap: var(--kc-space-4); }
.kc-rsvp-fields { display: grid; gap: var(--kc-space-4); }
.kc-field {
  display: grid;
  gap: var(--kc-space-2);
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}
.kc-field input,
.kc-field select { width: 100%; min-height: 44px; font-size: 16px; }
.kc-rsvp-attendance-options { display: grid; gap: var(--kc-space-2); }
@media (min-width: 30rem) {
  .kc-rsvp-attendance-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.kc-rsvp-attendance-option {
  position: relative;
  display: flex;
  min-height: 44px;
  cursor: pointer;
}
.kc-rsvp-attendance-option input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.kc-rsvp-attendance-face {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  text-align: center;
}
.kc-rsvp-attendance-option:has(input:focus-visible) { outline: 2px solid var(--kc-focus); outline-offset: 3px; }
.kc-rsvp-submit { width: 100%; min-height: 44px; }

/* ── Captura ───────────────────────────────────────────── */
.kc-captura__cta { min-height: 44px; cursor: not-allowed; }

/* ── Secreto (details sin JS) ──────────────────────────── */
.kc-secret > summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--kc-space-3);
  min-height: 44px;
  list-style: none;
  cursor: pointer;
}
.kc-secret > summary::-webkit-details-marker { display: none; }
.kc-secret__card { margin-top: var(--kc-space-5); }

/* ── Footer ────────────────────────────────────────────── */
.kc-footer { padding-block: var(--kc-space-7) calc(var(--kc-space-8) + env(safe-area-inset-bottom)); }
.kc-footer__inner { display: grid; justify-items: center; gap: var(--kc-space-2); text-align: center; }
.kc-footer__mark { display: flex; align-items: center; gap: var(--kc-space-2); }
.kc-footer__icon { width: 1rem; height: 1rem; flex: 0 0 auto; }
.kc-footer__link { display: inline-flex; align-items: center; gap: var(--kc-space-2); min-height: 44px; }
.kc-footer__link svg { width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }

/* ── Ring musical ──────────────────────────────────────── */
/* El botón no pinta disco, borde ni sombra: solo posiciona y da estados. */
.kc-ring {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 50;
  width: var(--kc-ring-size);
  height: var(--kc-ring-size);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: none;
  box-shadow: none;
  color: var(--kc-ring-ink);
  -webkit-tap-highlight-color: transparent;
}
.kc-ring:focus-visible { outline: 2px solid var(--kc-focus); outline-offset: 4px; }
.kc-ring__orbit,
.kc-ring__letter,
.kc-ring__emblem,
.kc-ring__bars { position: absolute; }
.kc-ring__orbit {
  inset: -8px;
  border: 1.5px dashed var(--kc-ring-color);
  border-radius: 50%;
  animation: kc-ring-spin 14s linear infinite;
  animation-play-state: paused;
}
.kc-ring__orbit::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 50%;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: var(--kc-ring-dot);
}
.kc-ring__letter { inset: 0; display: grid; place-items: center; line-height: 1; }
.kc-ring__emblem {
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  animation: kc-ring-spin 28s linear infinite;
  animation-play-state: paused;
}
.kc-ring__bars {
  left: 50%;
  bottom: 7px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 9px;
  transform: translateX(-50%);
}
.kc-bar {
  display: block;
  width: 3px;
  transform-origin: bottom center;
  animation: kc-bar-beat var(--kc-bar-tempo, 0.4s) ease-in-out infinite alternate;
  animation-play-state: paused;
}
.kc-bar:nth-child(1) { height: 5px; --kc-bar-tempo: 0.35s; }
.kc-bar:nth-child(2) { height: 9px; --kc-bar-tempo: 0.25s; }
.kc-bar:nth-child(3) { height: 4px; --kc-bar-tempo: 0.4s; }

.kc-ring[data-ring="anillo"] .kc-ring__emblem { display: none; }
.kc-ring[data-ring="sello"] .kc-ring__orbit,
.kc-ring[data-ring="sello"] .kc-ring__letter,
.kc-ring[data-ring="sello"] .kc-ring__bars { display: none; }

.kc-ring[data-kc-state="playing"] .kc-ring__orbit,
.kc-ring[data-kc-state="playing"] .kc-ring__emblem,
.kc-ring[data-kc-state="playing"] .kc-bar { animation-play-state: running; }

.kc-music-toast {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: calc(max(16px, env(safe-area-inset-bottom)) + var(--kc-ring-size) + 12px);
  z-index: 51;
  max-width: calc(100vw - 32px);
  margin: 0;
  cursor: pointer;
  opacity: 0;
  transform: translateY(0.4rem);
  transition: opacity 400ms var(--kc-ease), transform 400ms var(--kc-ease);
}
/* El core añade .is-visible tras el primer 'playing' y lo quita antes de ocultarlo (500 ms). */
.kc-music-toast.is-visible { opacity: 1; transform: none; }

@keyframes kc-ring-spin { to { transform: rotate(1turn); } }
@keyframes kc-bar-beat {
  from { transform: scaleY(0.45); }
  to { transform: scaleY(1); }
}

/* ── Reveals ───────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--kc-reveal-duration) var(--kc-ease), transform var(--kc-reveal-duration) var(--kc-ease);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }

.footer-reveal {
  opacity: 0;
  transform: translateY(0.5rem);
  transition: opacity 600ms var(--kc-ease), transform 600ms var(--kc-ease);
}
.footer-reveal.appeared { opacity: 1; transform: none; }

/* ── Reduced motion: todo visible, nada gira ───────────── */
@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  .footer-reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .kc-gate[data-gate-state="opening"] { transition: none; }
  .kc-ring__orbit,
  .kc-ring__emblem,
  .kc-bar { animation: none !important; }
  .kc-photo-stack__card,
  .kc-music-toast { transition: none; }
}