/* =========================================================
   CHÁ DE FRALDAS — JOSÉ FELIPE
   Estilos gerais, design tokens, layout, componentes e
   animações. Mobile-first.
========================================================= */

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ---------- Design tokens ---------- */
:root {
  --color-bg: #fffdf8;
  --color-bg-soft: #fbf3e6;
  --color-surface: #ffffff;
  --color-blue: #aad4f0;
  --color-blue-deep: #6fa8d8;
  --color-yellow: #fbe7ab;
  --color-gold: #e3c68a;
  --color-brown: #a98f77;
  --color-text: #4a4038;
  --color-muted: #948577;
  --color-error: #c96a5a;

  --font-primary: 'Poppins', 'Segoe UI', system-ui, sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;

  --container-width: 520px;
  --section-spacing: 1.75rem;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --transition-fast: 220ms ease;
  --transition-normal: 400ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-slow: 650ms cubic-bezier(0.22, 1, 0.36, 1);

  --shadow-soft: 0 12px 30px -14px rgba(169, 143, 119, 0.35);
}

/* ---------- Fontes ---------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=Poppins:wght@400;500;600&display=swap');

/* ---------- Base ---------- */
html {
  height: 100%;
}

body {
  min-height: 100dvh;
  min-height: 100vh;
  font-family: var(--font-primary);
  color: var(--color-text);
  background:
    radial-gradient(circle at 15% 10%, rgba(170, 212, 240, 0.28), transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(251, 231, 171, 0.35), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(227, 198, 138, 0.18), transparent 55%),
    var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

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

:focus-visible {
  outline: 3px solid var(--color-blue-deep);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- Elemento decorativo flutuante ---------- */
.floating-deco {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 14px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  opacity: 0.55;
  z-index: 5;
  animation: floatDeco 4.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes floatDeco {
  0%, 100% { transform: translateX(-50%) translateY(-5px); }
  50% { transform: translateX(-50%) translateY(5px); }
}

/* ---------- Indicador de etapas ---------- */
.step-indicator {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 44px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 5;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal);
}

.step-indicator.is-visible {
  opacity: 1;
  visibility: visible;
}

.step-indicator__label {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.step-indicator__dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(169, 143, 119, 0.28);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.dot.is-done {
  background: var(--color-blue-deep);
  transform: scale(1.15);
}

/* ---------- Stage / Screens ---------- */
.stage {
  position: relative;
  min-height: 100dvh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(env(safe-area-inset-top, 0px) + 96px) 1.25rem calc(env(safe-area-inset-bottom, 0px) + 76px);
  transition: padding var(--transition-normal);
}

/* Teclado virtual aberto: sai da centralização rígida para não ficar
   escondido atrás do teclado (ver script.js). */
body.keyboard-open .stage {
  align-items: flex-start;
  padding-bottom: 320px;
}

.screen {
  display: none;
  width: 100%;
  max-width: var(--container-width);
  align-items: center;
  justify-content: center;
}

.screen.active {
  display: flex;
}

.card {
  width: 100%;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(227, 198, 138, 0.25);
  text-align: center;
}

.reveal-item {
  opacity: 0;
}

.intro-card h1 {
  font-family: var(--font-secondary);
  font-size: 1.6rem;
  line-height: 1.35;
  margin-bottom: 1.1rem;
  color: var(--color-text);
}

.intro-card p {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 0.9rem;
}

.eyebrow {
  font-size: 0.82rem;
  color: var(--color-blue-deep);
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

h2 {
  font-family: var(--font-secondary);
  font-size: 1.35rem;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

/* ---------- Campos ---------- */
.field {
  margin-bottom: 1.4rem;
  text-align: left;
}

.input {
  width: 100%;
  font-size: 16px;
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(169, 143, 119, 0.3);
  background: var(--color-bg-soft);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  scroll-margin-top: 90px;
  scroll-margin-bottom: 240px;
}

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

.input:focus {
  border-color: var(--color-blue-deep);
  box-shadow: 0 0 0 4px rgba(111, 168, 216, 0.18);
  outline: none;
}

.field-error {
  min-height: 1.1em;
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--color-error);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.field-error.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Botões ---------- */
.btn {
  width: 100%;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  min-height: 52px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue-deep), var(--color-blue));
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(111, 168, 216, 0.55);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -10px rgba(111, 168, 216, 0.6);
}

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

/* Loader do botão final */
.btn-loader {
  display: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  margin: 0 auto;
  animation: spin 0.7s linear infinite;
}

.btn.is-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  opacity: 0.9;
}

.btn.is-loading .btn-loader { display: block; }

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

/* ---------- Respostas Sim / Não ---------- */
.options-answer {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.btn-answer {
  position: relative;
  width: 100%;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  border: 1.5px solid rgba(169, 143, 119, 0.25);
  background: var(--color-bg-soft);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.btn-answer:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn-answer:active {
  transform: scale(0.98);
}

.btn-answer--yes.is-selected {
  background: linear-gradient(135deg, var(--color-blue-deep), var(--color-blue));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 0 6px rgba(111, 168, 216, 0.18);
}

.btn-answer--no {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-answer--no .check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  color: #fff;
  font-size: 0.7rem;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-answer--no.is-selected {
  border-color: var(--color-gold);
  background: #fff8ea;
}

.btn-answer--no.is-selected .check-icon {
  opacity: 1;
  transform: scale(1);
}

/* ---------- Grid de opções (quantidade) ---------- */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.btn-option {
  padding: 1rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(169, 143, 119, 0.25);
  background: var(--color-bg-soft);
  font-weight: 500;
  font-size: 0.92rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.btn-option:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

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

.btn-option.is-selected {
  background: linear-gradient(135deg, var(--color-blue-deep), var(--color-blue));
  color: #fff;
  border-color: transparent;
}

/* ---------- Resumo ---------- */
.summary {
  text-align: left;
  margin-bottom: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.summary__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed rgba(169, 143, 119, 0.25);
}

.summary__row dt {
  font-size: 0.82rem;
  color: var(--color-muted);
  font-weight: 500;
}

.summary__row dd {
  font-weight: 600;
  text-align: right;
}

/* ---------- Tela de sucesso ---------- */
.success-card p {
  color: var(--color-muted);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.event-details {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed rgba(169, 143, 119, 0.3);
}

.event-details p {
  font-size: 0.9rem;
  color: var(--color-brown);
  margin-bottom: 0.4rem;
}

/* ---------- Camada de partículas ---------- */
.particles-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  overflow: hidden;
}

.particle {
  position: absolute;
  font-size: 1.1rem;
  will-change: transform, opacity;
}

.particle--dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-blue);
}

.particle--spark {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
}

/* =========================================================
   RODAPÉ DE CRÉDITO — componente reutilizável.
   Sem dependências obrigatórias de outras regras deste
   arquivo, exceto --transition-fast (troque por "220ms
   ease" se copiar para um projeto sem esse token).
========================================================= */
.credit-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  display: flex;
  justify-content: center;
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 -8px 20px -16px rgba(0, 0, 0, 0.18);
  padding: 10px max(16px, env(safe-area-inset-left, 0px)) calc(10px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-right, 0px));
}

.credit-footer__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 32px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-primary, 'Poppins', system-ui, sans-serif);
  font-size: 0.78rem;
  line-height: 1.3;
  color: #6b6b6b;
  text-decoration: none;
  transition: color var(--transition-fast, 220ms ease), opacity var(--transition-fast, 220ms ease);
}

.credit-footer__link:hover,
.credit-footer__link:focus-visible {
  opacity: 0.72;
  color: #4a4a4a;
}

.credit-footer__label strong {
  font-weight: 600;
  color: #4a4a4a;
}

.credit-footer__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: #c2477e;
}

.credit-footer__handle {
  color: #c2477e;
}

/* Evita conflito visual com o card quando o teclado
   virtual está aberto (ver body.keyboard-open em .stage). */
body.keyboard-open .credit-footer {
  display: none;
}

@media (max-width: 359px) {
  .credit-footer__link {
    font-size: 0.72rem;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .floating-deco {
    animation: none;
  }
}

/* ---------- Responsivo ---------- */
@media (min-width: 600px) {
  .card {
    padding: 2.75rem 2.5rem;
  }

  .intro-card h1 {
    font-size: 1.85rem;
  }
}

@media (max-width: 359px) {
  .card {
    padding: 1.85rem 1.35rem;
  }

  h2 {
    font-size: 1.2rem;
  }
}