/* ===========================
   SITE DE CASAMENTO — ANNA & ANDRE
   Paleta: 60% #f7f0e7 / 30% azuis / 10% #be3e45
   Enhanced with cinematic motion & editorial spatial composition
   =========================== */

/* ===========================
   1. CSS CUSTOM PROPERTIES
   =========================== */
:root {
  /* Cores — regra 60/30/10 */
  --color-bg: #f7f0e7;
  --color-bg-alt: #efe6d8;
  --color-primary-dark: #002740;
  --color-primary: #0067a7;
  --color-primary-light: #1e7dc2;
  --color-accent: #be3e45;
  --color-text: #002740;
  --color-text-light: #4a6070;
  --color-white: #ffffff;
  --color-border: rgba(0, 39, 64, 0.12);

  /* Tipografia */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Lato', 'Helvetica Neue', Arial, sans-serif;

  /* Espacamento */
  --section-padding: 120px 0;
  --container-width: 1100px;
  --container-padding: 0 24px;

  /* Transicoes — spring-inspired easing (Remotion best practice) */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
  --transition-base: 0.3s var(--ease-out-quart);
  --transition-slow: 0.7s var(--ease-out-expo);
  --transition-dramatic: 1.2s var(--ease-out-expo);

  /* Header */
  --header-height: 70px;
}

/* ===========================
   2. RESET / BASE
   =========================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  background-color: var(--color-bg);
}

body {
  background-color: transparent;
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ===========================
   3. TIPOGRAFIA
   =========================== */
h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary-dark);
  text-align: center;
}

h3 {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--color-primary-dark);
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* ===========================
   4. LAYOUT / CONTAINER
   =========================== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* TODAS as secoes: fundo opaco + z-index alto para cobrir o hero fixo */
.section {
  padding: var(--section-padding);
  background-color: var(--color-bg);
  position: relative;
  z-index: 2;
}

/* ===========================
   5. NAVEGACAO / HEADER
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(247, 240, 231, 0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: background-color 0.6s var(--ease-out-expo),
              backdrop-filter 0.6s var(--ease-out-expo),
              box-shadow 0.6s var(--ease-out-expo);
  height: var(--header-height);
}

.site-header.scrolled {
  background-color: rgba(247, 240, 231, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 30px rgba(0, 39, 64, 0.06);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 100%;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.5s var(--ease-out-expo) 0.2s,
              transform 0.5s var(--ease-out-expo) 0.2s;
}

.site-header.scrolled .nav-logo {
  opacity: 1;
  transform: translateY(0);
}

.nav-logo-img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary-dark);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--color-accent);
  transition: width 0.4s var(--ease-out-expo);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-accent);
}

/* Botao outline no nav (Lista de Presentes) */
.nav-links a.nav-btn-outline {
  border: 1.5px solid var(--color-primary-dark);
  border-radius: 4px;
  padding: 6px 16px;
  transition: background-color var(--transition-base), color var(--transition-base),
              transform 0.2s var(--ease-spring);
}

.nav-links a.nav-btn-outline:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.nav-links a.nav-btn-outline::after {
  display: none;
}

/* Botao solido vermelho no nav (Confirmar Presenca) */
.nav-links a.nav-btn-solid {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: 4px;
  padding: 6px 16px;
  border: 1.5px solid var(--color-accent);
  transition: background-color var(--transition-base),
              transform 0.2s var(--ease-spring),
              box-shadow var(--transition-base);
}

.nav-links a.nav-btn-solid:hover {
  background-color: #a53439;
  border-color: #a53439;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(190, 62, 69, 0.3);
}

.nav-links a.nav-btn-solid::after {
  display: none;
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary-dark);
  position: relative;
  transition: background-color var(--transition-base);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary-dark);
  transition: transform 0.4s var(--ease-spring);
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

/* Hamburger aberto */
.nav-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ===========================
   6. HERO — FUNDO FIXO COM CAMADAS
   =========================== */

/* Container fixo que fica atras de tudo */
#hero-fixed-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  overflow: hidden;
}

/* Cada camada ocupa 100% do container */
.hero-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Camada de baixo: Sempre visivel */
.layer-bottom {
  z-index: 1;
}

/* Camada azul: Filtro de cor. Comeca invisivel. */
.layer-blue {
  z-index: 2;
  background-color: rgba(0, 39, 64, 0.85);
  opacity: 0;
}

/* Camada de cima: Comeca totalmente visivel, cobrindo tudo */
.layer-top {
  z-index: 3;
}

/* Camada de reveal */
.layer-reveal {
  z-index: 4;
  clip-path: circle(0px at -100px -100px);
  will-change: clip-path;
  pointer-events: none;
}

/* SECAO HERO — Transparente para ver o fundo fixo */
.section--hero {
  background-color: transparent !important;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 100px;
  z-index: 2;
}

.hero-content {
  text-align: center;
  width: 100%;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* ===========================
   7. COUNTDOWN
   =========================== */
.countdown {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 0;
  background: rgba(247, 240, 231, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 12px;
  border: 1px solid rgba(247, 240, 231, 0.4);
  padding: 8px 16px;
  box-shadow: 0 4px 30px rgba(0, 39, 64, 0.08);
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 80px;
  padding: 12px 8px;
  position: relative;
  opacity: 0;
}

/* Vertical separator between countdown items */
.countdown-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40%;
  background: linear-gradient(to bottom, transparent, rgba(0, 39, 64, 0.2), transparent);
}

.countdown-value {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--color-primary-dark);
  line-height: 1;
  text-shadow: 0 1px 8px rgba(247, 240, 231, 0.4);
  /* Tabular numbers for no-jitter countdown (Remotion principle) */
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-text-light);
  margin-top: 8px;
  text-shadow: 0 1px 4px rgba(247, 240, 231, 0.3);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
}

.scroll-indicator span {
  font-family: var(--font-body);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: var(--color-text-light);
}

.scroll-indicator-line {
  width: 1px;
  height: 32px;
  background: var(--color-primary-dark);
  position: relative;
  overflow: hidden;
}

.scroll-indicator-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollLine 2s var(--ease-in-out) infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  50% { top: 100%; }
  100% { top: 100%; }
}

/* ===========================
   8. DIVISORES ORNAMENTAIS
   =========================== */
.ornamental-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 20px auto 40px;
  max-width: 280px;
}

.ornamental-divider::before,
.ornamental-divider::after {
  content: '';
  flex: 1;
  height: 1px;
}

.ornamental-divider::before {
  background: linear-gradient(to right, transparent, var(--color-primary-dark));
}

.ornamental-divider::after {
  background: linear-gradient(to left, transparent, var(--color-primary-dark));
}

.divider-symbol {
  font-size: 0.9rem;
  color: var(--color-accent);
  line-height: 1;
}

/* Layout em duas colunas (cerimonia / recepcao) */
.venue-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.venue-grid__info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.venue-grid__info .map-container {
  margin-top: 16px;
}

.venue-grid__media {
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

/* Photo hover zoom */
.venue-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  transition: transform 0.8s var(--ease-out-expo);
}

.venue-grid__media:hover .venue-photo {
  transform: scale(1.03);
}

/* ===========================
   9. SECAO — O CASAL (Transparente p/ ver fundo fixo)
   =========================== */
.section--couple {
  background-color: transparent !important;
  color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  z-index: 2;
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}

.section--couple .section-title {
  color: var(--color-bg);
}

.section--couple .ornamental-divider::before {
  background: linear-gradient(to right, transparent, rgba(247, 240, 231, 0.4));
}

.section--couple .ornamental-divider::after {
  background: linear-gradient(to left, transparent, rgba(247, 240, 231, 0.4));
}

.section--couple .divider-symbol {
  color: var(--color-accent);
}

.couple-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  margin-top: 40px;
}

/* The hand-drawn illustration */
.couple-illustration {
  flex: 0 0 220px;
  opacity: 0.15;
  filter: brightness(10) saturate(0);
  mix-blend-mode: normal;
  pointer-events: none;
}

.couple-illustration img {
  width: 100%;
  height: auto;
}

.couple-text {
  max-width: 460px;
  font-size: 1.05rem;
  text-align: left;
  line-height: 1.85;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.couple-text p {
  text-align: left;
  margin-bottom: 1.5em;
  color: rgba(247, 240, 231, 0.92);
}

.couple-text i {
  display: block;
  padding-left: 24px;
  border-left: 2px solid rgba(190, 62, 69, 0.5);
  font-size: 0.95em;
  color: rgba(247, 240, 231, 0.7);
}

/* ===========================
   10. SECAO — CERIMONIA
   =========================== */
.section--ceremony {
  background-color: var(--color-bg-alt);
}

/* Venue intro text — centered above the grid */
.venue-intro {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 68px;
}

.venue-intro p:first-child {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  line-height: 1.5;
  margin-bottom: 12px;
}

.venue-intro p:last-child {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Light variant for dark background (reception) */
.section--reception .venue-intro p:first-child {
  color: var(--color-bg);
}

.section--reception .venue-intro p:last-child {
  color: rgba(247, 240, 231, 0.7);
}

.ceremony-info,
.venue-grid__info {
  text-align: left;
}

.venue-grid__info h3 {
  margin-bottom: 8px;
}

.ceremony-address {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.ceremony-time {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-primary);
}

.map-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-container iframe {
  display: block;
  width: 100%;
}

/* ===========================
   11. SECAO — RECEPCAO (fundo azul escuro)
   =========================== */
.section--reception {
  background-color: var(--color-primary-dark) !important;
  color: var(--color-bg);
}

.section--reception .section-title {
  color: var(--color-bg);
}

.section--reception .ornamental-divider::before {
  background: linear-gradient(to right, transparent, rgba(247, 240, 231, 0.4));
}

.section--reception .ornamental-divider::after {
  background: linear-gradient(to left, transparent, rgba(247, 240, 231, 0.4));
}

.section--reception .divider-symbol {
  color: var(--color-accent);
}

.section--reception .venue-grid__info h3 {
  color: var(--color-bg);
}

.section--reception .venue-grid__info p {
  font-size: 1.05rem;
  color: rgba(247, 240, 231, 0.85);
}

.reception-address {
  font-size: 0.95rem;
  color: rgba(247, 240, 231, 0.7) !important;
  line-height: 1.6;
}

.section--reception .map-container {
  border-color: rgba(247, 240, 231, 0.15);
}

/* ===========================
   12. SECAO — LISTA DE PRESENTES
   =========================== */
.gifts-intro {
  text-align: center;
  font-size: 1.05rem;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* PIX — Layout em 2 colunas */
.pix-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.pix-row__text .gifts-intro {
  text-align: left;
  margin: 0;
  max-width: none;
}

.pix-row__qr {
  text-align: center;
}

.pix-qr {
  width: 100%;
  max-width: 200px;
  border-radius: 8px;
  margin-bottom: 12px;
  transition: transform 0.4s var(--ease-spring);
}

.pix-qr:hover {
  transform: scale(1.05);
}

.pix-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.pix-key {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-primary-dark);
  background: rgba(0, 39, 64, 0.06);
  padding: 10px 16px;
  border-radius: 4px;
  user-select: all;
  cursor: text;
  border: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.pix-key:hover {
  border-color: var(--color-border);
  box-shadow: 0 2px 12px rgba(0, 39, 64, 0.06);
}

.iframe-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow-y: auto;
  max-height: 900px;
}

.iframe-container iframe {
  display: block;
  width: 100%;
  border: none;
  height: 3000px;
}

.iframe-fallback {
  text-align: center;
  padding: 40px 20px;
}

.iframe-fallback p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  color: var(--color-text);
}

/* ===========================
   13. SECAO — RSVP
   =========================== */
.section--rsvp {
  background-color: var(--color-bg-alt);
}

.rsvp-intro {
  text-align: center;
  font-size: 1.05rem;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto 40px;
}

.rsvp-widget {
  max-width: 500px;
  margin: 0 auto;
}

.rsvp-widget iframe {
  background: none transparent;
  border: none;
  min-height: 50px;
  width: 100%;
  display: block;
  transition: height 0.3s ease;
}

/* ===========================
   14. BOTOES
   =========================== */
.btn {
  display: inline-block;
  padding: 14px 40px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-decoration: none;
  border: 2px solid;
  transition: all var(--transition-base),
              transform 0.3s var(--ease-spring),
              box-shadow var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  transition: left 0.5s var(--ease-out-expo);
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  color: var(--color-white);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(0, 103, 167, 0.3);
}

.btn--accent {
  color: var(--color-white);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background-color: #a53439;
  border-color: #a53439;
  box-shadow: 0 6px 20px rgba(190, 62, 69, 0.3);
}

/* Botoes de local (Google Maps / Waze) */
.venue-buttons {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.btn--outline-small {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 20px;
  font-size: 0.8rem;
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  background: transparent;
  border: 1.5px solid var(--color-primary-dark);
  border-radius: 4px;
  text-decoration: none;
  transition: all var(--transition-base),
              transform 0.2s var(--ease-spring);
  cursor: pointer;
}

.btn--outline-small:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 39, 64, 0.15);
}

/* Variante claro: para fundos escuros (recepcao) */
.btn--outline-small.btn--light {
  color: rgba(247, 240, 231, 0.9);
  border-color: rgba(247, 240, 231, 0.4);
}

.btn--outline-small.btn--light:hover {
  background-color: rgba(247, 240, 231, 0.12);
  color: var(--color-white);
  border-color: rgba(247, 240, 231, 0.8);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ===========================
   15. FOOTER
   =========================== */
.site-footer {
  padding: 80px 0 50px;
  text-align: center;
  background-color: var(--color-primary-dark);
  color: rgba(247, 240, 231, 0.8);
  position: relative;
  z-index: 2;
}

.site-footer .ornamental-divider::before {
  background: linear-gradient(to right, transparent, rgba(247, 240, 231, 0.4));
}

.site-footer .ornamental-divider::after {
  background: linear-gradient(to left, transparent, rgba(247, 240, 231, 0.4));
}

.site-footer .divider-symbol {
  color: var(--color-accent);
}

.footer-names {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-style: italic;
  color: var(--color-bg);
  margin-bottom: 4px;
}

.footer-date {
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: rgba(247, 240, 231, 0.5);
}

.footer-tagline {
  margin-top: 32px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(247, 240, 231, 0.3);
}

/* ===========================
   16. ANIMACOES DE SCROLL — Remotion-Inspired
   Principle: Staggered reveals with spring easing
   =========================== */

/* Base state: invisible, shifted */
.anim-reveal {
  opacity: 0;
  transform: translateY(40px);
  will-change: opacity, transform;
}

/* Visible state via GSAP — no CSS transition, GSAP handles spring physics */
.anim-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Legacy fallback for non-GSAP elements */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll:nth-child(2) {
  transition-delay: 0.15s;
}

.animate-on-scroll:nth-child(3) {
  transition-delay: 0.3s;
}

.animate-on-scroll:nth-child(4) {
  transition-delay: 0.45s;
}

/* Horizontal slide reveal (for venue photos) */
.anim-slide-right {
  opacity: 0;
  transform: translateX(60px);
  will-change: opacity, transform;
}

.anim-slide-left {
  opacity: 0;
  transform: translateX(-60px);
  will-change: opacity, transform;
}

/* Scale reveal (for images) */
.anim-scale {
  opacity: 0;
  transform: scale(0.92);
  will-change: opacity, transform;
}

/* Mask reveal for venue photos */
.anim-clip-reveal {
  clip-path: inset(0 100% 0 0);
  will-change: clip-path;
}

/* ===========================
   17. SECTION TRANSITIONS — Grain & Texture
   =========================== */

/* Subtle grain overlay on beige sections */
.section--ceremony::before,
.section--gifts::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 1000px) {

  /* Nav mobile */
  .nav-toggle {
    display: block;
  }


  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: rgba(247, 240, 231, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.5s var(--ease-out-expo),
      opacity 0.4s var(--ease-out-expo),
      visibility 0.4s var(--ease-out-expo);
    box-shadow: 0 8px 40px rgba(0, 39, 64, 0.08);
  }

  .nav-links.nav-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 0.85rem;
  }

  .nav-links a::after {
    display: none;
  }
  
    .section--couple {
    background-color: rgba(0, 39, 64, 0.85) !important;
    padding: 100px 0;
  }

}


/* ===========================
   18. RESPONSIVO — TABLET (max 768px)
   =========================== */
@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
    --header-height: 60px;
  }

  /* Nav mobile */
  .nav-toggle {
    display: block;
  }

  /* PIX: empilhar no mobile */
  .pix-row {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .pix-row__text .gifts-intro {
    text-align: center;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: rgba(247, 240, 231, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.5s var(--ease-out-expo),
                opacity 0.4s var(--ease-out-expo),
                visibility 0.4s var(--ease-out-expo);
    box-shadow: 0 8px 40px rgba(0, 39, 64, 0.08);
  }

  .nav-links.nav-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 0.85rem;
  }

  .nav-links a::after {
    display: none;
  }

  /* Venue grid — empilhar */
  .venue-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .venue-grid__info {
    text-align: center;
  }

  .venue-buttons {
    justify-content: center;
  }

  /* Casal — fundo escuro no mobile para legibilidade */

  .couple-content {
    flex-direction: column;
    text-align: center;
    gap: 32px;
  }

  .couple-illustration {
    flex: none;
    width: 160px;
    margin: 0 auto;
  }

  .couple-text {
    text-align: center;
  }

  .couple-text p {
    text-align: center;
  }

  .couple-text i {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid rgba(190, 62, 69, 0.3);
    padding-top: 16px;
  }

  /* Mapa */
  .map-container iframe {
    height: 300px;
  }

  /* Iframe presentes */
  .iframe-container iframe {
    height: 500px;
  }

  .pix-row__qr {
    display: none;
  }

  /* Header always shows logo on mobile */
  .nav-logo {
    opacity: 1;
    transform: translateY(0);
  }

  .site-header {
    background-color: rgba(247, 240, 231, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

/* ===========================
   19. RESPONSIVO — MOBILE (max 480px)
   =========================== */
@media (max-width: 480px) {
  :root {
    --section-padding: 60px 0;
  }

  .container {
    padding: 0 16px;
  }

  /* Countdown */
  .countdown {
    gap: 2px;
  }

  .countdown-item {
    min-width: 60px;
    padding: 8px 4px;
  }

  .countdown-item:not(:last-child)::after {
    display: none;
  }
  
  .scroll-indicator {
      display: none;
  }

  /* Botoes full-width */
  .btn {
    display: block;
    width: 100%;
    text-align: center;
  }

  /* Manter botoes de local inline no mobile */
  .venue-buttons .btn {
    display: inline-flex;
    width: auto;
  }

  /* Mapa */
  .map-container iframe {
    height: 250px;
  }

  /* Iframe presentes */
  .iframe-container iframe {
    height: 400px;
  }

  .scroll-indicator {
    bottom: 20px;
  }

  .couple-illustration {
    width: 120px;
  }
}

/* ===========================
   20. REDUCED MOTION
   =========================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .animate-on-scroll,
  .anim-reveal,
  .anim-slide-right,
  .anim-slide-left,
  .anim-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .anim-clip-reveal {
    clip-path: none;
  }

  .nav-links a::after {
    transition: none;
  }

  .btn {
    transition: none;
  }

  .btn::before {
    display: none;
  }

  .scroll-indicator-line::after {
    animation: none;
  }

  .countdown-item,
  .scroll-indicator {
    opacity: 1;
  }
}