/* ─────────────────────────────────────────────
   VARIÁVEIS DE DESIGN — 2081 Customizador
   Design tokens conforme design-tokens-2081.md
   ───────────────────────────────────────────── */
:root {
  /* Modo Void — primário */
  --void:      #08080C;
  --obsidian:  #0E0E16;
  --basalt:    #1A1814;
  --ouro:      #C9A55A;
  --champagne: #E8D5A0;
  --marfim:    #F0E6D2;
  --bronze:    #8B6E3E;

  /* Modo Twilight — secundário */
  --abismo:   #0A1620;
  --oceano:   #0F1E2E;
  --petroleo: #162840;
  --aco-frio: #1E3850;
  --ambar:    #D4B87A;

  /* Acentos narrativos */
  --sangue-seco:    #3A2828;
  --raiz:           #1A3A28;
  --cinza-quente:   #E8E0D8;
  --vermelho-alerta:#8B3A3A;

  /* Gradiente display */
  --gradient-gold: linear-gradient(135deg, #E8D5A0 0%, #C9A55A 50%, #8B6E3E 100%);

  /* Tipografia */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Space Grotesk', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Bordas */
  --radius-none: 0px;
  --radius-sm:   2px;
  --radius-md:   4px;
  --radius-lg:   8px;
  --border-subtle:   0.5px solid rgba(201,165,90,0.1);
  --border-default:  0.5px solid #1A1814;
  --border-accent:   0.5px solid #C9A55A;

  /* Transições */
  --transition-fast:    150ms ease;
  --transition-default: 300ms ease;

  /* ── Aliases para compatibilidade com CSS existente ── */
  --bg-primary:       var(--void);
  --bg-secondary:     var(--obsidian);
  --bg-card:          var(--obsidian);
  --bg-card-hover:    var(--basalt);
  --bg-card-selected: #1C1A16;
  --text-primary:     var(--marfim);
  --text-secondary:   #B8A07A;
  --text-muted:       var(--bronze);
  --accent-primary:   var(--ouro);
  --accent-secondary: var(--champagne);
  --accent-gold:      var(--ouro);
  --border:           rgba(201,165,90,0.15);
  --border-selected:  var(--ouro);
  --font-serif:       var(--font-body);
  --radius:           2px;
  --transition:       0.25s ease;
}

/* ─────────────────────────────────────────────
   RESET & BASE
   ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-serif);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* ─────────────────────────────────────────────
   UTILITY
   ───────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─────────────────────────────────────────────
   SEÇÃO BASE
   ───────────────────────────────────────────── */
.section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.section-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─────────────────────────────────────────────
   FADE-IN AO ENTRAR NO VIEWPORT
   ───────────────────────────────────────────── */
.fade-section {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────────────────────────────────────
   SEÇÃO 0 — HERO
   ───────────────────────────────────────────── */
.section-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-primary);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Grid blueprint de fundo */
.section-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 59px, rgba(201,165,90,0.08) 59px, rgba(201,165,90,0.08) 60px),
    repeating-linear-gradient(90deg,  transparent, transparent 59px, rgba(201,165,90,0.08) 59px, rgba(201,165,90,0.08) 60px);
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 100%);
}

/* Gradiente radial sutil */
.section-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(201,165,90,0.04) 0%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  max-width: 820px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

/* Logo */
.logo-2081 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 400;
  letter-spacing: 0.3em;
  background: linear-gradient(135deg, #E8D5A0 0%, #C9A55A 50%, #8B6E3E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  animation: fadeUp 0.6s ease both;
}

.logo-line {
  width: 80px;
  height: 1px;
  background-color: rgba(201,165,90,0.6);
}

/* Título */
.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  animation: fadeUp 0.8s ease both;
  text-wrap: balance;
}

/* Subtítulo */
.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: var(--champagne);
  font-style: italic;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.8s ease 1.5s both;
}

/* Identificação do conto */
.hero-conto {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  letter-spacing: 0.05em;
  opacity: 0;
  animation: fadeUp 0.6s ease 2s both;
}

/* CTA */
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ouro);
  letter-spacing: 0.06em;
  opacity: 0;
  animation: fadeUp 0.6s ease 2.5s both;
  cursor: pointer;
  background: none;
  border: 1px solid var(--ouro);
  border-radius: 2px;
  padding: 0.75rem 2rem;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.hero-cta:hover {
  background-color: rgba(201,165,90,0.1);
  border-color: var(--champagne);
  color: var(--ouro);
}

/* Seta com bounce */
.cta-arrow {
  display: inline-block;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(4px); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────────
   CABEÇALHOS DE SEÇÃO
   ───────────────────────────────────────────── */
.section-header {
  margin-bottom: 3rem;
  text-align: center;
}

.section-number {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary);
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* ─────────────────────────────────────────────
   SEÇÃO 1 — FLIP CARDS
   ───────────────────────────────────────────── */
.cards-scroll-wrapper {
  position: relative;
  overflow: hidden;
}

/* Track: scroll horizontal no mobile/tablet */
.cards-track {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 1.5rem 1rem 2rem;
  scroll-padding-left: 1rem;
}

.cards-track::-webkit-scrollbar {
  display: none;
}

/* Instrução acima do carrossel */
.cards-instruction {
  margin-top: 0.75rem;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
}

.instruction-mobile { display: none; }
.instruction-desktop { display: inline; }

@media (max-width: 640px) {
  .instruction-desktop { display: none; }
  .instruction-mobile  { display: inline; }
}

/* ──── PERSPECTIVA E CONTAINER DO CARD ──── */
.flip-card {
  flex: 0 0 300px;
  height: 420px;
  scroll-snap-align: center;
  perspective: 1000px;
  cursor: pointer;
}

/* Face interna que gira */
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}

/* Faces compartilhadas */
.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-color: var(--bg-card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.flip-card-back {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}

/* Hover na frente */
.flip-card:hover .flip-card-front {
  background-color: var(--bg-card-hover);
  border-color: var(--text-muted);
}

/* Estado selecionado */
.flip-card.selected .flip-card-front,
.flip-card.selected .flip-card-back {
  border-color: var(--border-selected);
  box-shadow: 0 0 0 1px var(--ouro), 0 0 20px rgba(201,165,90,0.12);
  background-color: var(--bg-card-selected);
}

/* ──── CONTEÚDO DA FRENTE ──── */
.card-emoji {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 0.75rem;
}

.card-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 0.5rem;
}

.card-tagline {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--accent-secondary);
  text-align: center;
  font-style: italic;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.card-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.5rem 0 0.75rem;
}

.card-authors {
  list-style: none;
  font-family: var(--font-serif);
  font-size: 0.78rem;
  color: var(--text-secondary);
  flex-grow: 1;
}

.card-authors li {
  margin-bottom: 0.2rem;
}

.card-authors span.obra {
  color: var(--text-muted);
}


/* ──── CONTEÚDO DO VERSO ──── */
.back-header {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.radar-grid {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.radar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.radar-label {
  color: var(--text-secondary);
  min-width: 90px;
}

.radar-stars {
  color: var(--accent-gold);
  letter-spacing: 1px;
  font-size: 0.85rem;
}

.card-desc {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.5;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.back-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.btn-select {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  background-color: var(--accent-primary);
  color: var(--void);
  border: none;
  border-radius: 2px;
  padding: 0.5rem;
  transition: opacity var(--transition);
}

.btn-select:hover { opacity: 0.85; }


/* ──── CHECKMARK DE SELEÇÃO ──── */
.selected-check {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  color: #fff;
  font-size: 0.75rem;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  z-index: 10;
}

.flip-card.selected .selected-check {
  display: flex;
}

/* ──── DOTS (mobile) ──── */
.scroll-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 0;
}

.scroll-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--border);
  border: none;
  padding: 0;
  transition: background-color var(--transition), transform var(--transition);
}

.scroll-dot.active {
  background-color: var(--accent-primary);
  transform: scale(1.3);
}

/* ──── SETAS (desktop) ──── */
.arrow-btn {
  display: none;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.4rem;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background-color var(--transition), border-color var(--transition);
}

.arrow-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-primary);
}

.arrow-left  { left: 0; }
.arrow-right { right: 0; }

@media (min-width: 1024px) {
  .arrow-btn { display: flex; }

  .cards-scroll-wrapper {
    padding: 0 3rem;
  }

  /* No desktop: 3 cards visíveis, sem scroll */
  .cards-track {
    overflow-x: hidden;
    scroll-snap-type: none;
  }
}

/* ─────────────────────────────────────────────
   SEÇÃO 2 — GRID 2×2
   ───────────────────────────────────────────── */
.grid-2x2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .grid-2x2 {
    grid-template-columns: 1fr 1fr;
  }
}

.option-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}

.option-card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.option-card.selected {
  background-color: var(--bg-card-selected);
  border-color: var(--border-selected);
  box-shadow: 0 0 0 1px var(--ouro), 0 0 16px rgba(201,165,90,0.1);
}

.option-emoji {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.option-text { flex: 1; }

.option-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.option-desc {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.option-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-secondary);
  margin-top: 0.4rem;
}

.option-check {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  color: #fff;
  font-size: 0.68rem;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
}

.option-card.selected .option-check {
  display: flex;
}

/* ─────────────────────────────────────────────
   SEÇÃO 3 & 4 — LISTA VERTICAL
   ───────────────────────────────────────────── */
.list-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 700px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  /* P3/P4 ficam em 3 colunas no desktop */
  .list-options.three-col {
    flex-direction: row;
    max-width: 100%;
  }

  .list-options.three-col .option-card {
    flex-direction: column;
    flex: 1;
    min-height: 140px;
  }
}

/* ─────────────────────────────────────────────
   GUARDRAIL TIPS
   ───────────────────────────────────────────── */
.guardrail-tip {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  max-width: 700px;
  margin: 1rem auto 0;
  padding: 0.75rem 1rem;
  border-radius: 2px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  animation: fadeIn 0.3s ease;
}

.guardrail-tip.visible {
  display: flex !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────────
   SEÇÃO 4.5 — RESUMO DAS ESCOLHAS
   ───────────────────────────────────────────── */
.section-45 {
  min-height: 80vh;
}

.choices-summary {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .choices-summary {
    flex-direction: column;
  }
}

.choice-card {
  flex: 1;
  min-width: 140px;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
}

.choice-card:hover {
  border-color: var(--accent-secondary);
  background-color: var(--bg-card-hover);
}

.choice-card.choice-empty {
  opacity: 0.5;
}

.choice-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.choice-missing {
  color: var(--text-muted);
}

.choice-label {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Guardrail alert */
.guardrail-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding: 1rem 1.25rem;
  background-color: rgba(201,165,90,0.06);
  border-left: 3px solid var(--ouro);
  border-radius: 0 2px 2px 0;
  animation: fadeIn 0.3s ease;
}

.guardrail-alert.hidden { display: none !important; }

.alert-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.alert-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.alert-text {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.alert-adjust {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ouro);
  text-decoration: none;
  transition: opacity var(--transition);
  align-self: flex-start;
}

.alert-adjust:hover { opacity: 0.75; }

/* Botão continuar */
.continue-wrapper {
  display: flex;
  justify-content: center;
}

.btn-continue {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  background-color: var(--accent-primary);
  color: var(--void);
  border: none;
  border-radius: 2px;
  padding: 0.875rem 2.5rem;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-continue:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ─────────────────────────────────────────────
   SEÇÃO 5 — FORMULÁRIO
   ───────────────────────────────────────────── */
.section-inner form {
  max-width: 560px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.label-optional {
  color: var(--text-muted);
  font-weight: 400;
}

.form-input {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
}

.form-input:focus {
  border-color: var(--ouro);
  box-shadow: 0 0 0 2px rgba(201,165,90,0.2);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 2px;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #f87171;
  margin-bottom: 1rem;
}

.retry-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ouro);
  background: none;
  border: 1px solid var(--ouro);
  border-radius: 2px;
  padding: 0.25rem 0.6rem;
  white-space: nowrap;
  transition: background-color var(--transition);
}

.retry-btn:hover {
  background-color: rgba(201,165,90,0.1);
  color: var(--ouro);
}

.btn-submit {
  width: 100%;
  background-color: var(--accent-primary);
  color: var(--void);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 2px;
  padding: 1rem;
  letter-spacing: 0.04em;
  transition: opacity var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-submit:not(:disabled):hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.form-note {
  margin-top: 1rem;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* Spinner */
.spinner {
  width: 18px;
  height: 18px;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Highlight pulsante para erro de validação */
.highlight-error {
  animation: pulse-border 1.5s ease 3;
}

@keyframes pulse-border {
  0%, 100% { border-color: var(--border); box-shadow: none; }
  50%       { border-color: #ef4444; box-shadow: 0 0 0 2px rgba(239,68,68,0.25); }
}

/* ─────────────────────────────────────────────
   SEÇÃO 6 — CONFIRMAÇÃO
   ───────────────────────────────────────────── */
.section-confirm {
  background-color: var(--bg-primary);
}

.confirm-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
  max-width: 560px;
  margin: 0 auto;
}

.confirm-check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: rgba(201,165,90,0.1);
  border: 2px solid var(--ouro);
  color: var(--ouro);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.confirm-title {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 700;
  color: var(--text-primary);
}

.confirm-body {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.confirm-body strong {
  color: var(--accent-secondary);
}

.confirm-divider {
  width: 40px;
  height: 1px;
  background-color: var(--border);
}

.confirm-cta-label {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.btn-substack {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.85rem 1.75rem;
  transition: background-color var(--transition), border-color var(--transition);
}

.btn-substack:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.confirm-footer {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-url {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-secondary);
}

/* ─────────────────────────────────────────────
   INDICADOR LATERAL DE PROGRESSO
   ───────────────────────────────────────────── */
.progress-dots {
  position: fixed;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 100;
}

.progress-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--border);
  border: none;
  padding: 0;
  transition: background-color var(--transition), transform var(--transition);
  cursor: pointer;
}

.progress-dot.active {
  background-color: var(--accent-primary);
  transform: scale(1.4);
}

@media (max-width: 640px) {
  .progress-dots { display: none; }
}

/* ─────────────────────────────────────────────
   AJUSTES MOBILE
   ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .section {
    padding: 3.5rem 1rem;
    min-height: auto;
    padding-top: 4rem;
  }

  .flip-card {
    flex: 0 0 calc(100vw - 3rem);
  }

  .section-header {
    margin-bottom: 2rem;
  }
}