/* ==========================================================
   REY & REYNA — invitación en clave de cine
   Negro cálido, marfil y oro. Cinco escenas a pantalla completa.
   Letra base 19 px, botones de 54-64 px, contraste AA en todo texto informativo.
   ========================================================== */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
img, video, iframe { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }

:root {
  color-scheme: dark;
  --noche: #0E0B08;
  --noche-2: #17120C;
  --marfil: #F3ECDF;
  --blanco: #FFFCF6;
  --texto: #F3ECDF;
  --texto-2: #CDBFA8;
  --tinta: #1E1710;
  --tinta-2: #5A4B3A;
  --oro: #CBA35A;
  --oro-claro: #E6C98D;
  --oro-texto: #7A5C24;
  --g-boton: linear-gradient(180deg, #EFD7A2 0%, #D6B26B 50%, #B78E47 100%);
  --titulo: "Urbanist", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --acento: "Cormorant Garamond", Garamond, Georgia, serif;
  --lado: clamp(20px, 6vw, 64px);
  --curva: cubic-bezier(.22, .8, .2, 1);
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--noche);
}
html.letra-grande { font-size: 118.75%; }

body {
  margin: 0;
  font-family: var(--titulo);
  font-size: 1.1875rem;
  line-height: 1.55;
  font-weight: 500;
  color: var(--texto);
  background: var(--noche);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Grano de película ---------- */
.grano {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Revelado ---------- */
html.js .rv {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  filter: blur(6px);
  transition: opacity 1.1s var(--curva), transform 1.1s var(--curva), filter 1.1s var(--curva);
  transition-delay: var(--t, 0s);
}
html.js .rv.si { opacity: 1; transform: none; filter: none; }

/* ---------- Botones ---------- */
.btn-oro, .btn-linea {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 58px;
  padding: 0 26px;
  border-radius: 999px;
  font: 700 1.125rem/1.1 var(--titulo);
  letter-spacing: .02em;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform .15s ease, box-shadow .3s ease, background-color .3s ease, border-color .3s ease;
}
.btn-oro {
  overflow: hidden;
  color: #1B140C;
  background: var(--g-boton);
  border: 1px solid rgba(255, 236, 196, .45);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 16px 34px -14px rgba(203, 163, 90, .6);
}
.btn-oro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, .55) 50%, transparent 65%);
  transform: translateX(-130%);
  pointer-events: none;
}
.btn-oro:hover::after { animation: barrido 1.2s ease; }
.btn-linea {
  color: var(--texto);
  background: rgba(255, 248, 236, .06);
  border: 1.5px solid rgba(230, 201, 141, .55);
}
.btn-linea:hover { background: rgba(255, 248, 236, .12); }
.btn-oro:active, .btn-linea:active { transform: translateY(1px) scale(.985); }
.btn-oro:focus-visible, .btn-linea:focus-visible, .btn-texto:focus-visible {
  outline: 3px solid var(--oro-claro);
  outline-offset: 3px;
}
.btn--xl { min-height: 64px; padding: 0 34px; font-size: 1.25rem; }
.btn--ancho { width: 100%; }
.btn-oro[disabled] { cursor: progress; filter: saturate(.6); }
.btn-oro svg, .btn-linea svg { flex: none; }
.btn-texto {
  min-height: 52px;
  padding: 0 16px;
  border: 0;
  background: none;
  font: 700 1.0625rem/1 var(--titulo);
  text-decoration: underline;
  text-underline-offset: 5px;
  cursor: pointer;
}

/* ---------- Botón de letra ---------- */
/* Solo vive en la portada; al bajar, el mismo control está en la barra inferior. */
.btn-letra {
  position: absolute;
  z-index: 70;
  top: calc(12px + env(safe-area-inset-top));
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 16px 0 13px;
  border-radius: 999px;
  border: 1px solid rgba(230, 201, 141, .45);
  background: rgba(14, 11, 8, .86);
  color: var(--texto);
  font: 700 .9375rem/1 var(--titulo);
  cursor: pointer;
}
.btn-letra b { font: 600 1.35rem/1 var(--acento); color: var(--oro-claro); }
.btn-letra[aria-pressed="true"] { background: var(--g-boton); color: #1B140C; border-color: transparent; }
.btn-letra[aria-pressed="true"] b { color: #1B140C; }
.btn-letra:focus-visible { outline: 3px solid var(--oro-claro); outline-offset: 3px; }

/* ---------- Escenas ---------- */
.escena { position: relative; isolation: isolate; overflow: hidden; }
.escena__fondo {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-position: center;
  background-size: cover;
  opacity: .38;
  animation: deriva 26s ease-in-out infinite alternate;
}
.escena__fondo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, var(--noche) 0%, rgba(14, 11, 8, .45) 22%, rgba(14, 11, 8, .55) 78%, var(--noche) 100%),
    radial-gradient(120% 80% at 50% 50%, transparent 40%, rgba(0, 0, 0, .6) 100%);
}
.rotulo {
  margin: 0;
  padding-left: .34em;
  font: 700 .9375rem/1.2 var(--titulo);
  letter-spacing: .34em;
  text-transform: uppercase;
  text-align: center;
  color: var(--oro-claro);
}
.titulo-escena {
  margin: 16px 0 0;
  text-align: center;
  font: 300 clamp(2.7rem, 11.5vw, 4.8rem)/1 var(--titulo);
  letter-spacing: .02em;
  color: #FFF8EC;
}
.titulo-escena em {
  font: italic 500 1.08em/1 var(--acento);
  letter-spacing: 0;
  color: var(--oro-claro);
}
@media (max-width: 759px) {
  .titulo-escena em { display: block; margin-top: .06em; }
}

/* ---------- 1 · Título ---------- */
.titulo {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: calc(13svh + env(safe-area-inset-top)) var(--lado) 13svh;
  text-align: center;
  background: #000 url("../img/apertura-916.jpg") center / cover no-repeat;
}
.escena__film {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.escena__film.lista { opacity: 1; }
.titulo__velo {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(85% 60% at 50% 50%, rgba(8, 6, 4, .42) 0%, rgba(8, 6, 4, .8) 100%),
    linear-gradient(180deg, rgba(8, 6, 4, .45) 0%, rgba(8, 6, 4, .15) 40%, rgba(8, 6, 4, .2) 60%, rgba(8, 6, 4, .7) 100%);
}
.franja {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  height: 8svh;
  background: #000;
  transform-origin: top;
  transition: transform 1.3s var(--curva);
}
.franja--arriba { top: 0; animation: franjaArriba 1.4s var(--curva) both; }
.franja--abajo { bottom: 0; animation: franjaAbajo 1.4s var(--curva) both; }
.titulo.abierta .franja--arriba { transform: translateY(-100%); }
.titulo.abierta .franja--abajo { transform: translateY(100%); }

.titulo__contenido { position: relative; z-index: 4; width: 100%; max-width: 1000px; }
.titulo__para {
  margin: 0 0 30px;
  font: 600 .9375rem/1.3 var(--titulo);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--texto-2);
}
.titulo__para strong {
  display: block;
  margin-top: 6px;
  font: italic 500 clamp(1.8rem, 7.5vw, 2.5rem)/1.12 var(--acento);
  letter-spacing: 0;
  text-transform: none;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .6);
}
.titulo__presentan {
  margin: 0;
  padding-left: .34em;
  font: 600 clamp(.875rem, 3.6vw, 1.0625rem)/1.3 var(--titulo);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--oro-claro);
}
.titulo__nombres {
  margin: 18px 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  font: 300 clamp(3.6rem, 18vw, 9.6rem)/.92 var(--titulo);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #FFF8EC;
  text-shadow: 0 4px 40px rgba(0, 0, 0, .55);
}
.titulo__nombres span { padding-left: .12em; }
.titulo__nombres em {
  margin: .06em 0 .02em;
  font: italic 500 .62em/1 var(--acento);
  letter-spacing: 0;
  text-transform: none;
  color: var(--oro-claro);
}
.titulo__bodas {
  margin: 26px 0 0;
  font: italic 500 clamp(1.7rem, 7vw, 2.6rem)/1.1 var(--acento);
  color: #F6EEDF;
}
.titulo__anios {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 14px 0 0;
  padding-left: .3em;
  font: 500 1.125rem/1 var(--titulo);
  letter-spacing: .3em;
  color: var(--texto-2);
}
.titulo__anios i { width: 44px; height: 1px; background: var(--oro); }
.titulo .btn-oro { margin-top: 42px; }

@media (min-aspect-ratio: 1/1) {
  .titulo { background-image: url("../img/apertura-169.jpg"); }
}
@media (min-width: 760px) {
  .titulo__nombres { flex-direction: row; align-items: baseline; justify-content: center; gap: .22em; }
  .titulo__nombres em { margin: 0; }
}

/* Secuencia de créditos al cargar */
html.js .secuencia > * {
  opacity: 0;
  animation: credito 1.5s var(--curva) forwards;
  animation-delay: var(--t, 0s);
}
html.js .secuencia > .titulo__nombres {
  animation: creditoGrande 2.2s var(--curva) forwards;
  animation-delay: var(--t, 0s);
}

/* ---------- 2 · La invitación ---------- */
.invitacion {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  background: var(--noche);
}
.carrete { position: absolute; inset: 0; z-index: -1; overflow: hidden; background: #000; }
.toma { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity 1.8s ease; }
.toma img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--op, 50% 30%);
  transform: scale(1.1);
  filter: sepia(.1) saturate(.94) contrast(1.04);
}
.toma.es-activa { opacity: 1; }
.toma.es-activa img { animation: kenburns 10s linear forwards; }
.carrete::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  background:
    linear-gradient(180deg, rgba(14, 11, 8, .5) 0%, rgba(14, 11, 8, 0) 18%, rgba(14, 11, 8, 0) 40%, rgba(14, 11, 8, .78) 62%, rgba(14, 11, 8, .97) 100%),
    radial-gradient(130% 90% at 50% 38%, transparent 55%, rgba(0, 0, 0, .55) 100%);
}
.destello {
  position: absolute;
  inset: -25%;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(38% 34% at 32% 42%, rgba(255, 196, 120, .9), transparent 70%),
    radial-gradient(30% 28% at 68% 58%, rgba(255, 150, 70, .55), transparent 70%);
  mix-blend-mode: screen;
}
.destello.corre { animation: destello 1.7s ease-out; }

.invitacion__texto {
  align-self: end;
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
  padding: 0 var(--lado) calc(118px + env(safe-area-inset-bottom));
  text-align: center;
}
.anios-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(14, 11, 8, .72);
  border: 1px solid rgba(203, 163, 90, .45);
}
.anios-tabs button {
  position: relative;
  overflow: hidden;
  min-width: 104px;
  min-height: 50px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--texto-2);
  font: 700 1.0625rem/1 var(--titulo);
  letter-spacing: .18em;
  padding-left: .18em;
  cursor: pointer;
  transition: background .4s, color .4s;
}
.anios-tabs button[aria-selected="true"] { background: var(--g-boton); color: #1B140C; }
.anios-tabs button::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 7px;
  height: 2px;
  border-radius: 2px;
  background: rgba(27, 20, 12, .55);
  transform: scaleX(0);
  transform-origin: left;
}
.anios-tabs button.corre::after { animation: avance 6.5s linear forwards; }
.anios-tabs button:focus-visible { outline: 3px solid var(--oro-claro); outline-offset: 2px; }

.invitacion__linea {
  margin: 26px 0 0;
  font: italic 500 clamp(1.6rem, 6.4vw, 2.1rem)/1.2 var(--acento);
  color: var(--texto);
}
.invitacion__titulo {
  margin: 6px 0 0;
  font: 300 clamp(3.1rem, 14.5vw, 6.2rem)/.95 var(--titulo);
  letter-spacing: .05em;
  text-transform: uppercase;
  color: #FFF8EC;
}
.invitacion__titulo span { display: block; color: var(--oro-claro); }
.invitacion__fecha {
  margin: 24px 0 0;
  font: 600 clamp(1.3rem, 5.2vw, 1.65rem)/1.3 var(--titulo);
  color: #FFF8EC;
}
.invitacion__faltan {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 12px 0 0;
  padding-left: .16em;
  font: 700 1rem/1.3 var(--titulo);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--oro-claro);
}
.invitacion__faltan::before, .invitacion__faltan::after { content: ""; width: 28px; height: 1px; background: var(--oro); }

@media (min-width: 960px) {
  .invitacion { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .carrete { position: relative; inset: auto; z-index: 0; min-height: 100svh; }
  .carrete::after {
    background:
      linear-gradient(90deg, rgba(14, 11, 8, 0) 60%, rgba(14, 11, 8, .95) 100%),
      radial-gradient(120% 90% at 40% 40%, transparent 55%, rgba(0, 0, 0, .5) 100%);
  }
  .invitacion__texto { align-self: center; max-width: 600px; padding: 80px 64px; text-align: left; }
}

/* ---------- 3 · El día ---------- */
.dia { padding: clamp(96px, 16vw, 150px) var(--lado) clamp(96px, 14vw, 140px); background: var(--noche); }
.dia .escena__fondo { background-image: url("../img/iglesia-916.jpg"); }
@media (min-aspect-ratio: 1/1) { .dia .escena__fondo { background-image: url("../img/iglesia-169.jpg"); } }

.agenda {
  list-style: none;
  margin: 56px auto 0;
  padding: 0;
  max-width: 1040px;
  display: grid;
}
.momento { padding: 34px 0; text-align: center; }
.momento + .momento { border-top: 1px solid rgba(203, 163, 90, .35); }
.momento__hora {
  margin: 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  font: 200 clamp(3.6rem, 17vw, 5.4rem)/1 var(--titulo);
  letter-spacing: -.01em;
  color: #FFF8EC;
}
.momento__hora small { font: 600 1.25rem/1 var(--titulo); letter-spacing: .08em; color: var(--oro-claro); }
.momento__hora.momento__hora--texto {
  min-height: 1.4em;
  align-items: center;
  font: italic 500 clamp(2.2rem, 9.5vw, 3rem)/1.1 var(--acento);
  letter-spacing: 0;
}
.momento__que {
  margin: 12px 0 0;
  padding-left: .24em;
  font: 700 1rem/1.3 var(--titulo);
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--oro-claro);
}
.momento__lugar {
  margin: 10px 0 0;
  font: italic 500 clamp(1.9rem, 8vw, 2.5rem)/1.12 var(--acento);
  color: #FFF8EC;
}
.momento__dir { margin: 8px 0 0; color: var(--texto-2); }
.momento__nota { margin: 6px 0 0; color: var(--texto); }
.momento__acciones {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 10px;
  max-width: 440px;
  margin: 22px auto 0;
}
.dia__detalle { margin: 26px 0 0; text-align: center; color: var(--texto-2); }
.dia__detalle strong { color: #FFF8EC; }

@media (min-width: 960px) {
  .agenda { grid-template-columns: 1fr 1fr; }
  .momento { padding: 10px 44px; }
  .momento + .momento { border-top: 0; border-left: 1px solid rgba(203, 163, 90, .35); }
}

.mapa { max-width: 1040px; margin: 52px auto 0; }
.mapa__pestanas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  max-width: 520px;
  margin: 0 auto;
  padding: 5px;
  border-radius: 999px;
  background: rgba(14, 11, 8, .6);
  border: 1px solid rgba(203, 163, 90, .45);
}
.mapa__pestanas button {
  min-height: 54px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--texto-2);
  font: 700 1.125rem/1 var(--titulo);
  cursor: pointer;
  transition: background .35s, color .35s;
}
.mapa__pestanas button[aria-selected="true"] { background: var(--g-boton); color: #1B140C; }
.mapa__pestanas button:focus-visible { outline: 3px solid var(--oro-claro); outline-offset: 2px; }
.mapa__marco {
  margin-top: 16px;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(203, 163, 90, .45);
  background: var(--noche-2);
  box-shadow: 0 40px 80px -40px #000;
}
.mapa__marco iframe {
  width: 100%;
  height: clamp(300px, 72vw, 440px);
  border: 0;
  filter: sepia(.28) saturate(.85) contrast(1.02);
}
.mapa__pie {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 16px 18px 18px;
}
.mapa__pie > div > strong { display: block; font: italic 500 1.5rem/1.15 var(--acento); color: #FFF8EC; }
.mapa__pie > div > span { display: block; color: var(--texto-2); font-size: 1.0625rem; }

/* ---------- 4 · Confirmación ---------- */
.rsvp { padding: clamp(96px, 16vw, 150px) var(--lado); background: var(--noche); }
.rsvp .escena__fondo { background-image: url("../img/fiesta-916.jpg"); opacity: .45; }
@media (min-aspect-ratio: 1/1) { .rsvp .escena__fondo { background-image: url("../img/fiesta-169.jpg"); } }

.tarjeta {
  color-scheme: light;
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  padding: clamp(36px, 7vw, 56px) clamp(20px, 6vw, 48px) clamp(30px, 6vw, 44px);
  border-radius: 28px;
  background: var(--blanco);
  color: var(--tinta);
  box-shadow: 0 60px 120px -50px rgba(0, 0, 0, .95);
}
.tarjeta .rotulo { color: var(--oro-texto); }
.tarjeta__titulo {
  margin: 12px 0 0;
  text-align: center;
  font: 300 clamp(2.6rem, 11vw, 3.8rem)/1 var(--titulo);
  color: var(--tinta);
}
.tarjeta__titulo em { font: italic 500 1.08em/1 var(--acento); color: var(--oro-texto); }
.tarjeta .btn-linea { color: var(--tinta); background: #fff; border-color: #CDB48A; }
.tarjeta .btn-linea:hover { background: #FBF5EA; }
.tarjeta .btn-oro:focus-visible, .tarjeta .btn-linea:focus-visible, .tarjeta .btn-texto:focus-visible { outline-color: var(--tinta); }
.tarjeta .btn-texto { color: var(--oro-texto); }

.rsvp__pases {
  margin: 22px auto 0;
  max-width: 32ch;
  padding: 14px 18px;
  border-radius: 16px;
  background: #F6EEDD;
  text-align: center;
  font-size: 1.1875rem;
}
.rsvp__limite { margin: 14px 0 0; text-align: center; color: var(--tinta-2); font-size: 1.0625rem; }
.rsvp__como { margin: 0 0 24px; text-align: center; font-size: 1.1875rem; }
#formRsvp { margin-top: 30px; }

.campo { margin: 0 0 28px; }
.campo label, .campo__etiqueta, .eleccion legend {
  display: block;
  margin: 0 0 10px;
  padding: 0;
  font: 700 1.1875rem/1.3 var(--titulo);
  color: var(--tinta);
}
.opcional { font-weight: 500; color: var(--tinta-2); }
.campo input, .campo textarea {
  width: 100%;
  min-height: 62px;
  padding: 16px 18px;
  border: 2px solid #D8C8AA;
  border-radius: 16px;
  background: #fff;
  font: 500 1.25rem/1.35 var(--titulo);
  color: var(--tinta);
  transition: border-color .2s, box-shadow .2s;
}
.campo textarea { min-height: 120px; resize: vertical; }
.campo input::placeholder, .campo textarea::placeholder { color: #7D6C58; opacity: 1; }
.campo input:focus, .campo textarea:focus {
  outline: none;
  border-color: #A8823D;
  box-shadow: 0 0 0 5px rgba(203, 163, 90, .3);
}
.campo__ayuda { margin: 8px 0 0; font-size: 1rem; color: var(--tinta-2); }
.campo__error { margin: 10px 0 0; font-size: 1.0625rem; font-weight: 700; color: #9B2C1B; }

.eleccion { min-width: 0; margin: 0 0 28px; padding: 0; border: 0; display: grid; gap: 12px; }
.opcion { position: relative; display: block; cursor: pointer; }
.opcion input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.opcion span {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 74px;
  padding: 12px 20px;
  border: 2px solid #E0D2B6;
  border-radius: 18px;
  background: #fff;
  font: 700 1.3125rem/1.2 var(--titulo);
  color: var(--tinta);
  transition: border-color .25s, background .3s, box-shadow .3s, transform .15s;
}
.opcion span::before {
  content: "";
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid #BFA473;
  background: #fff center / 20px no-repeat;
  transition: background-color .2s, border-color .2s;
}
.opcion:active span { transform: scale(.99); }
.opcion input:checked + span {
  border-color: #A8823D;
  background: #FBF3E2;
  box-shadow: 0 16px 30px -18px rgba(140, 100, 35, .7);
}
.opcion input:checked + span::before {
  border-color: #8E6A28;
  background-color: #A8823D;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E");
  animation: pop .38s var(--curva);
}
.opcion input:focus-visible + span { outline: 3px solid var(--tinta); outline-offset: 3px; }

.contador {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 70px;
  align-items: center;
  gap: 12px;
  max-width: 330px;
  margin: 0 auto;
}
.contador__btn {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 1px solid #A8823D;
  background: var(--g-boton);
  font: 500 2.4rem/1 var(--titulo);
  color: #1B140C;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .6), 0 10px 20px -12px rgba(120, 85, 25, .7);
  transition: transform .12s, filter .2s, opacity .2s;
}
.contador__btn:active { transform: scale(.94); }
.contador__btn:disabled { cursor: not-allowed; filter: grayscale(.8); opacity: .4; }
.contador__btn:focus-visible { outline: 3px solid var(--tinta); outline-offset: 3px; }
.contador output { display: block; text-align: center; font: 300 3.6rem/1 var(--titulo); color: var(--tinta); }
.contador output.salta { animation: salta .32s var(--curva); }
.contador__nota { margin: 10px 0 0; text-align: center; font-size: 1.0625rem; color: var(--tinta-2); }

.rsvp__error {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: 14px;
  background: #FBE9E4;
  border: 1px solid #E3B3A6;
  color: #7A2414;
  font-weight: 600;
}
.rsvp__error a { margin-top: 10px; }

.gracias { padding-top: 12px; text-align: center; outline: none; }
.gracias__sello { width: 140px; height: auto; margin: 0 auto 4px; filter: drop-shadow(0 10px 12px rgba(60, 40, 12, .3)); }
.gracias.animar .gracias__sello { animation: estampa .75s cubic-bezier(.2, 1.3, .4, 1) both; }
.gracias__titulo { margin: 8px 0 0; font: 300 clamp(2.2rem, 9vw, 3rem)/1.05 var(--titulo); color: var(--tinta); }
.gracias__texto { margin: 12px auto 26px; max-width: 32ch; font-size: 1.25rem; }
.gracias__acciones { display: grid; gap: 12px; }
.gracias .btn-texto { margin-top: 16px; }

.petalo {
  position: fixed;
  z-index: 95;
  top: -24px;
  width: 11px;
  height: 16px;
  border-radius: 70% 0 70% 0;
  background: var(--g-boton);
  pointer-events: none;
  animation: cae var(--d, 3s) linear var(--espera, 0s) forwards;
}

/* ---------- 5 · Créditos ---------- */
.creditos {
  padding: clamp(100px, 18vw, 170px) var(--lado) calc(150px + env(safe-area-inset-bottom));
  text-align: center;
  background: #000;
}
.creditos__foto {
  width: min(84vw, 460px);
  margin: 0 auto 48px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, 1), 0 0 0 1px rgba(203, 163, 90, .35);
}
.creditos__foto img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: 50% 40%;
  filter: sepia(.12) saturate(.95);
}
.creditos__con { margin: 0; font: italic 500 clamp(1.6rem, 6.5vw, 2rem)/1.2 var(--acento); color: var(--texto-2); }
.creditos__firma {
  margin: 10px 0 0;
  padding-left: .3em;
  font: 700 1.0625rem/1.3 var(--titulo);
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--oro-claro);
}
.creditos__nombres {
  margin: 44px 0 0;
  padding-left: .12em;
  font: 300 clamp(2.9rem, 13vw, 5.4rem)/1 var(--titulo);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #FFF8EC;
}
.creditos__nombres em { font: italic 500 .7em/1 var(--acento); letter-spacing: 0; text-transform: none; color: var(--oro-claro); }
.creditos__anios { margin: 14px 0 0; padding-left: .3em; font: 500 1.125rem/1 var(--titulo); letter-spacing: .3em; color: var(--texto-2); }
.creditos .btn-linea { margin-top: 44px; }

/* ---------- Barra inferior ---------- */
.barra {
  position: fixed;
  z-index: 60;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) minmax(0, 1fr);
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(14, 11, 8, .93);
  border: 1px solid rgba(203, 163, 90, .38);
  box-shadow: 0 24px 44px -18px rgba(0, 0, 0, .85);
  transform: translateY(170%);
  transition: transform .55s var(--curva);
}
.barra.visible { transform: none; }
.barra .btn-oro, .barra .btn-linea { min-height: 54px; padding: 0 10px; gap: 8px; font-size: 1.0625rem; white-space: nowrap; }
.barra .btn-linea { border-color: transparent; background: transparent; }
.barra__letra {
  min-height: 54px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 248, 236, .09);
  color: var(--oro-claro);
  font: 600 1.4rem/1 var(--acento);
  cursor: pointer;
}
.barra__letra[aria-pressed="true"] { background: var(--g-boton); color: #1B140C; }
.barra__letra:focus-visible { outline: 3px solid var(--oro-claro); outline-offset: 2px; }
@media (min-width: 900px) {
  .barra { left: auto; right: 24px; bottom: 24px; width: 480px; }
}

/* ---------- Animaciones ---------- */
@keyframes grano {
  0% { transform: translate3d(0, 0, 0); }
  20% { transform: translate3d(-4%, 3%, 0); }
  40% { transform: translate3d(3%, -5%, 0); }
  60% { transform: translate3d(-6%, -2%, 0); }
  80% { transform: translate3d(5%, 4%, 0); }
  100% { transform: translate3d(0, 0, 0); }
}
@keyframes franjaArriba { from { transform: translateY(-100%); } to { transform: none; } }
@keyframes franjaAbajo { from { transform: translateY(100%); } to { transform: none; } }
@keyframes credito {
  from { opacity: 0; filter: blur(12px); transform: translate3d(0, 14px, 0); }
  to { opacity: 1; filter: blur(0); transform: none; }
}
@keyframes creditoGrande {
  from { opacity: 0; filter: blur(14px); transform: scale(1.12); }
  to { opacity: 1; filter: blur(0); transform: none; }
}
@keyframes kenburns { from { transform: scale(1.12) translate3d(0, 1.5%, 0); } to { transform: scale(1) translate3d(0, -1%, 0); } }
@keyframes deriva { from { transform: scale(1.06) translate3d(-1%, 0, 0); } to { transform: scale(1.12) translate3d(1%, -1%, 0); } }
@keyframes destello {
  0% { opacity: 0; transform: translate3d(-18%, 0, 0); }
  35% { opacity: 1; }
  100% { opacity: 0; transform: translate3d(18%, 0, 0); }
}
@keyframes avance { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes barrido { 0% { transform: translateX(-130%); } 100% { transform: translateX(130%); } }
@keyframes pop { 0% { transform: scale(.6); } 70% { transform: scale(1.15); } 100% { transform: scale(1); } }
@keyframes salta { 0% { transform: scale(.7); } 60% { transform: scale(1.12); } 100% { transform: scale(1); } }
@keyframes estampa { 0% { opacity: 0; transform: scale(2.3) rotate(-22deg); } 55% { opacity: 1; } 100% { opacity: 1; transform: scale(1) rotate(0); } }
@keyframes cae {
  0% { transform: translate3d(0, 0, 0) rotate(0) scale(var(--s, 1)); opacity: 1; }
  100% { transform: translate3d(var(--x, 0), 108vh, 0) rotate(var(--r, 180deg)) scale(var(--s, 1)); opacity: .85; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .rv { opacity: 1; transform: none; filter: none; transition: none; }
  html.js .secuencia > * { opacity: 1; animation: none; }
  .grano, .escena__fondo, .toma.es-activa img { animation: none; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}