/* =========================================================
   Navbar
========================================================= */
.navbar.scrolled {
  background: linear-gradient(135deg, var(--vino-oscuro), var(--vino));
  box-shadow: 0 6px 24px var(--sombra-vino);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--vino-oscuro);
  letter-spacing: 1px;
  transition: color .3s ease;
}

.navbar.scrolled .nav-brand { color: var(--plateado-claro); }

.nav-brand-mark { color: var(--vino-claro); font-size: 0.85rem; margin: 0 2px; }
.navbar.scrolled .nav-brand-mark { color: var(--plateado); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 600;
  padding: 6px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--vino-oscuro);
  transition: all .35s ease;
}

.navbar.scrolled .nav-toggle span { background: var(--plateado-claro); }

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-links {
  position: fixed;
  top: 0; right: 0;
  height: 100dvh;
  width: min(72vw, 300px);
  padding-top: env(safe-area-inset-top, 0px);
  background: linear-gradient(160deg, var(--vino-oscuro), var(--vino-profundo));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform .45s ease;
  z-index: 550;
}

.nav-links.open { transform: translateX(0); }

.nav-link {
  color: var(--plateado-claro);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 1px;
  background: var(--plateado);
  transition: width .35s ease;
}

.nav-link.active::after { width: 100%; }

/* =========================================================
   Hero
========================================================= */
.hero {
  background: radial-gradient(ellipse at 50% 20%, var(--vino-claro) 0%, var(--vino) 45%, var(--vino-oscuro) 100%);
}

.hero-eyebrow {
  font-family: var(--font-display);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--plateado);
  margin-bottom: 0.7rem;
}

.hero-name {
  font-family: var(--font-script);
  font-size: clamp(4rem, 22vw, 6.5rem);
  line-height: 1;
  color: var(--plateado-claro);
  text-shadow: 0 4px 30px rgba(0,0,0,.35);
  margin-bottom: 0.6rem;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(0.95rem, 3vw, 1.15rem);
  margin-bottom: 1rem;
  color: var(--plateado-claro);
}

.divider {
  width: 46px;
  height: 1px;
  background: var(--plateado);
  margin: 0 auto 1.4rem;
  position: relative;
}

.divider::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 6px; height: 6px;
  background: var(--plateado);
  transform: translate(-50%, -50%) rotate(45deg);
}

.hero-date {
  font-family: var(--font-display);
  font-size: clamp(1rem, 4vw, 1.25rem);
  letter-spacing: 2px;
  color: var(--plateado);
  margin-bottom: 2rem;
}

/* Countdown */
.countdown {
  display: flex;
  gap: clamp(0.5rem, 3vw, 1.2rem);
  justify-content: center;
  margin-bottom: 2.6rem;
}

.countdown-box {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(201,201,209,0.35);
  border-radius: 12px;
  padding: 0.7rem clamp(0.7rem, 3vw, 1.1rem);
  min-width: 62px;
}

.countdown-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 5vw, 2rem);
  font-weight: 700;
  color: var(--plateado-claro);
}

.countdown-label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--plateado);
  margin-top: 3px;
}

.scroll-cue {
  display: inline-block;
  width: 22px;
  height: 36px;
  border: 1px solid var(--plateado);
  border-radius: 20px;
  position: relative;
}

.scroll-cue span {
  position: absolute;
  top: 7px; left: 50%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--plateado-claro);
  transform: translateX(-50%);
  animation: scrollDot 1.8s ease infinite;
}

/* =========================================================
   Info list (ceremonia / recepción)
========================================================= */
.info-list {
  display: inline-flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
  margin: 0 auto 1.8rem;
}

.info-list li { display: flex; align-items: flex-start; gap: 0.9rem; font-size: 1rem; }

.info-icon { font-size: 1.3rem; margin-top: 2px; }

.info-list strong {
  font-family: var(--font-display);
  color: var(--vino);
  display: block;
  font-size: 0.95rem;
}

.info-list span { color: var(--tinta-suave); }

/* =========================================================
   Botones
========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 0.85rem;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease;
}

.btn:active { transform: scale(0.97); }

.btn-ubicacion {
  background: transparent;
  color: var(--vino);
  border: 1px solid var(--vino);
}

.btn-ubicacion:hover { background: var(--vino); color: var(--plateado-claro); }

/* =========================================================
   Historia — fotos de la línea de tiempo
========================================================= */
.timeline-photo {
  width: min(46vw, 168px);
  height: min(46vw, 168px);
  margin: 0 auto;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 10px 26px var(--sombra-vino);
  border: 3px solid var(--marfil);
  outline: 1px solid var(--plateado-oscuro);
  cursor: pointer;
}

.timeline-photo img { width: 100%; height: 100%; object-fit: cover; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20,4,8,0.92);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}

.lightbox.active { display: flex; }

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}

.lightbox-close {
  position: absolute;
  top: calc(1.5rem + env(safe-area-inset-top, 0px)); right: 1.5rem;
  background: none;
  border: 1px solid var(--plateado-claro);
  color: var(--plateado-claro);
  width: 38px; height: 38px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
}

/* =========================================================
   Lluvia de sobres
========================================================= */
.envelope-icon-big { font-size: 2.6rem; text-align: center; }

.envelope {
  position: absolute;
  top: -40px;
  font-size: var(--size, 1.2rem);
  left: var(--left, 50%);
  filter: drop-shadow(0 4px 6px var(--sombra-vino));
  color: var(--vino);
}

/* =========================================================
   Fondos por sección
========================================================= */
.section-ceremonia { background: var(--marfil); }
.section-recepcion { background: var(--plateado-claro); }
.section-historia { background: var(--marfil); }
.section-sobres { background: var(--plateado-claro); }

.footer {
  background: linear-gradient(135deg, var(--vino-profundo), var(--vino-oscuro));
  color: var(--plateado-claro);
}

.footer-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  margin-bottom: 0.7rem;
  color: var(--plateado);
}

.footer-name { font-family: var(--font-script); font-size: 2rem; }
.footer-name span { font-family: var(--font-body); font-size: 0.95rem; color: var(--plateado); }

/* =========================================================
   Mariposas (estructura; el movimiento vive en animations.css)
========================================================= */
.butterfly-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 300;
  overflow: hidden;
}

.butterfly { position: absolute; top: 0; left: 0; will-change: transform; }

.butterfly-img {
  display: block;
  pointer-events: none;
  user-select: none;
}

.butterfly-img.tint-vino {
  filter: grayscale(1) sepia(1) hue-rotate(-40deg) saturate(4) brightness(0.55) drop-shadow(0 4px 8px rgba(61,8,20,.3));
}

.butterfly-img.tint-plateado {
  filter: grayscale(0) brightness(1.3) contrast(0.5) drop-shadow(0 4px 8px rgba(61,8,20,.25));
}

/* =========================================================
   Brillos / escarcha (estructura; el parpadeo vive en animations.css)
========================================================= */
.sparkle-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 260;
  overflow: hidden;
}

.sparkle {
  position: absolute;
  width: var(--size, 6px);
  height: var(--size, 6px);
  clip-path: polygon(50% 0%, 61% 35%, 100% 50%, 61% 65%, 50% 100%, 39% 65%, 0% 50%, 39% 35%);
}

.sparkle.tint-vino { background: var(--vino-claro); box-shadow: 0 0 6px var(--vino-claro); }
.sparkle.tint-plateado { background: var(--plateado-claro); box-shadow: 0 0 6px var(--plateado-claro); }

/* =========================================================
   Reveal on scroll
========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .9s ease, transform .9s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   Sobre de apertura (pantalla inicial)
========================================================= */
.envelope-intro {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.2rem;
  background: radial-gradient(ellipse at 50% 40%, var(--vino-claro) 0%, var(--vino) 55%, var(--vino-profundo) 100%);
  cursor: pointer;
  transition: opacity .6s ease;
}

.envelope-intro.closing { opacity: 0; pointer-events: none; }

.envelope-shape {
  position: relative;
  width: min(62vw, 240px);
  aspect-ratio: 3 / 2;
  perspective: 700px;
}

.envelope-shape .env-back {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, var(--plateado-claro), var(--plateado));
  border-radius: 6px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}

.envelope-shape .env-flap {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  clip-path: polygon(0 0, 100% 0, 50% 58%);
  background: linear-gradient(160deg, var(--vino-claro), var(--vino-oscuro));
  transform-origin: top center;
  transition: transform .9s cubic-bezier(.6,.15,.2,1);
  border-radius: 6px 6px 0 0;
}

.envelope-intro.opening .envelope-shape .env-flap {
  transform: rotateX(-150deg);
}

.envelope-shape .env-seal {
  position: absolute;
  top: 52%; left: 50%;
  transform: translate(-50%, -50%);
  width: 46px; height: 46px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--plateado-claro), var(--plateado) 60%, var(--plateado-oscuro));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-script);
  color: var(--vino-oscuro);
  font-size: 1.4rem;
  box-shadow: 0 6px 16px rgba(0,0,0,.35);
  transition: opacity .4s ease, transform .5s ease;
}

.envelope-intro.opening .envelope-shape .env-seal {
  opacity: 0;
  transform: translate(-50%, -160%) scale(0.6);
}

.envelope-hint {
  font-family: var(--font-display);
  color: var(--plateado-claro);
  text-align: center;
  font-size: 0.95rem;
  letter-spacing: 1px;
  transition: opacity .4s ease;
}

.envelope-hint span {
  display: block;
  font-family: var(--font-script);
  font-size: 1.6rem;
  margin-top: 0.3rem;
  color: var(--plateado);
}

.envelope-intro.opening .envelope-hint { opacity: 0; }