/* ============================================================
   BASE.CSS — Estilos globais e utilitários
   ============================================================ */

/* ---- Body — renderização consistente cross-browser ---- */

body {
  -webkit-font-smoothing: antialiased;   /* Chrome/Safari: suavização subpixel → cinza uniforme */
  -moz-osx-font-smoothing: grayscale;    /* Firefox macOS */
  text-rendering: optimizeLegibility;
}

/* ---- Layout ---- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---- Screens ---- */

.screen {
  display: none;
  /* svh = viewport com barra do browser SEMPRE visível
     Evita salto de layout quando a barra aparece/some */
  min-height: 100vh;         /* fallback navegadores antigos */
  min-height: 100svh;        /* estável: não muda com barra nativa */
  flex-direction: column;
  padding: var(--screen-padding);
  /* safe-area para notch/barra home iOS/Android */
  padding-bottom: max(var(--screen-padding), env(safe-area-inset-bottom, var(--screen-padding)));
  position: relative;
  overflow: hidden;
}

.screen.is-active {
  display: flex;
}

/* ---- Tipografia ---- */

.display {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-hero);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.headline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-h1);
  line-height: 1;
  letter-spacing: -0.02em;
}

.title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-h2);
  line-height: 1.1;
}

.label-text {
  font-family: var(--font-label);
  font-weight: 400;
  font-size: var(--text-label);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.body-text {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.55;
  color: var(--color-text-muted);
}

.caption {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  line-height: 1.4;
  color: var(--color-text-muted);
}

/* ---- Noise grain overlay (sutil, em fundo claro fica pelagem) ---- */

.screen::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 150px;
  z-index: var(--z-above);
}

/* ---- Divider ---- */

.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-md) 0;
}

/* ---- Animações de entrada ---- */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

/* Visível por padrão — JS adiciona is-active na tela e dispara animação.
   Fallback: se JS falhar, .js-ready nunca é adicionado e o conteúdo fica visível. */
.js-ready [data-anim] {
  opacity: 0;
}

.js-ready [data-anim].is-visible {
  animation: fadeUp var(--dur-enter) var(--ease-spring) forwards;
}