/* ==========================================================================
   DTLab 4.0 Manager — Landing Page
   base.css — tokens de marca, reset, tipografia, utilitários e animações
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Marca (extraída do sistema DTLab) */
  --brand: #ba0036;
  --brand-strong: #920029;
  --brand-deep: #7a0024;
  --brand-logo: #a70235;
  --brand-soft: #ff3d68;
  --charcoal: #303636;

  /* Superfícies — tema escuro (padrão) */
  --bg: #080b0b;
  --bg-alt: #0d1212;
  --surface: #121818;
  --surface-2: #182020;
  --surface-3: #1f2828;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Texto */
  --fg: #f3f6f6;
  --fg-muted: #9aa8a8;
  --fg-subtle: #6d7c7c;
  --on-brand: #ffffff;

  /* Semânticos */
  --ok: #34d399;
  --warn: #fbbf24;
  --info: #38bdf8;
  --danger: #fb7185;

  /* Gradientes */
  --grad-brand: linear-gradient(135deg, var(--brand-soft) 0%, var(--brand) 45%, var(--brand-strong) 100%);
  --grad-line: linear-gradient(90deg, transparent, var(--brand), transparent);
  --grad-text: linear-gradient(100deg, #ffffff 0%, #ffd9e2 40%, var(--brand-soft) 100%);

  /* Raio e sombra */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-2xl: 32px;
  --r-full: 999px;

  --sh-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --sh-md: 0 8px 24px -8px rgba(0, 0, 0, 0.55);
  --sh-lg: 0 24px 60px -18px rgba(0, 0, 0, 0.7);
  --sh-brand: 0 18px 46px -14px rgba(186, 0, 54, 0.55);
  --ring-brand: 0 0 0 4px rgba(186, 0, 54, 0.22);

  /* Tipografia */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Sora", var(--font-sans);
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Layout */
  --wrap: 1680px;
  --wrap-narrow: 960px;
  --gutter: clamp(1rem, 1.8vw, 1.5rem);
  --header-h: 74px;
  --section-y: clamp(4.5rem, 9vw, 8.5rem);
  --slide-h: 100vh;
  --slide-h: 100dvh;

  /* Movimento */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 160ms;
  --t: 320ms;
  --t-slow: 640ms;

  color-scheme: dark;
}

/* Tema claro */
:root[data-tema="claro"] {
  --bg: #ffffff;
  --bg-alt: #f5f7f7;
  --surface: #ffffff;
  --surface-2: #f2f5f5;
  --surface-3: #e8eded;
  --border: rgba(48, 54, 54, 0.13);
  --border-strong: rgba(48, 54, 54, 0.24);

  --fg: #101616;
  --fg-muted: #556363;
  --fg-subtle: #7c8a8a;
  --brand-soft: #d2003e;

  --ok: #059669;
  --warn: #b45309;
  --info: #0284c7;
  --danger: #be123c;

  --grad-text: linear-gradient(100deg, #1a1f1f 0%, var(--brand) 70%, var(--brand-strong) 100%);

  --sh-sm: 0 1px 2px rgba(16, 22, 22, 0.06);
  --sh-md: 0 10px 28px -12px rgba(16, 22, 22, 0.18);
  --sh-lg: 0 28px 64px -24px rgba(16, 22, 22, 0.24);
  --sh-brand: 0 18px 40px -16px rgba(186, 0, 54, 0.42);

  color-scheme: light;
}

/* --------------------------------------------------------------------------
   2. Reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

body {
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--t) var(--ease), color var(--t) var(--ease);
}

img, svg, video, canvas, iframe { display: block; max-width: 100%; }
img, video { height: auto; }

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

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

ul, ol { list-style: none; padding: 0; }

table { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid var(--brand-soft);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

::selection {
  background: var(--brand);
  color: #fff;
}

/* Barra de rolagem — apenas em dispositivos com ponteiro preciso, para não
   forçar barras visíveis em telas de toque. */
@media (pointer: fine) {
  ::-webkit-scrollbar { width: 11px; height: 11px; }
  ::-webkit-scrollbar-track { background: var(--bg-alt); }
  ::-webkit-scrollbar-thumb {
    background: var(--surface-3);
    border-radius: var(--r-full);
    border: 3px solid var(--bg-alt);
  }
  ::-webkit-scrollbar-thumb:hover { background: var(--brand); }
}

/* --------------------------------------------------------------------------
   3. Tipografia
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.022em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.3rem, 1.5rem + 3vw, 3.45rem); }
h2 { font-size: clamp(1.9rem, 1.2rem + 2.6vw, 3.1rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.6vw, 1.45rem); line-height: 1.25; }
h4 { font-size: 1.0625rem; line-height: 1.3; }

p { text-wrap: pretty; }

strong, b { font-weight: 650; color: var(--fg); }

.texto-marca {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

@media (min-width: 1180px) {
  .wrap { padding-inline-end: max(var(--gutter), 2.75rem); }
}

.wrap-estreito { max-width: var(--wrap-narrow); }

.secao {
  position: relative;
  padding-block: var(--section-y);
  scroll-margin-top: 0;
}

.secao-alt { background: var(--bg-alt); }

.secao-borda { border-top: 1px solid var(--border); }

.grade {
  display: grid;
  gap: clamp(1rem, 2vw, 1.6rem);
}

.grade-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grade-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grade-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 960px) {
  .grade-3, .grade-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grade-2, .grade-3, .grade-4 { grid-template-columns: minmax(0, 1fr); }
}

/* Cabeçalho de seção */
.cabecalho-secao {
  max-width: 46rem;
  margin-bottom: clamp(2.25rem, 4vw, 3.75rem);
}

.cabecalho-secao.centro {
  margin-inline: auto;
  text-align: center;
}

.cabecalho-secao .olho {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-soft);
}

.cabecalho-secao .olho::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.cabecalho-secao.centro .olho::before { display: none; }

.cabecalho-secao p {
  margin-top: 1rem;
  font-size: clamp(1.02rem, 0.98rem + 0.25vw, 1.15rem);
  color: var(--fg-muted);
}

/* --------------------------------------------------------------------------
   5. Botões
   -------------------------------------------------------------------------- */
.btn {
  --btn-py: 0.85rem;
  --btn-px: 1.6rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: var(--btn-py) var(--btn-px);
  border-radius: var(--r-full);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.005em;
  white-space: nowrap;
  cursor: pointer;
  isolation: isolate;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t) var(--ease),
              background-color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}

.btn:active { transform: translateY(1px) scale(0.99); }

.btn .icone { width: 18px; height: 18px; flex: none; }

.btn-primario {
  background: var(--grad-brand);
  color: var(--on-brand);
  box-shadow: var(--sh-brand);
}

.btn-primario::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 55%);
  opacity: 0;
  transition: opacity var(--t) var(--ease);
  z-index: -1;
}

.btn-primario:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 56px -16px rgba(186, 0, 54, 0.7);
}

.btn-primario:hover::after { opacity: 1; }

.btn-secundario {
  background: var(--surface-2);
  color: var(--fg);
  border: 1px solid var(--border-strong);
}

.btn-secundario:hover {
  background: var(--surface-3);
  border-color: var(--brand);
  transform: translateY(-2px);
}

.btn-fantasma {
  padding-inline: 1.1rem;
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid transparent;
}

.btn-fantasma:hover { color: var(--fg); background: var(--surface-2); }

.btn-grande { --btn-py: 1.05rem; --btn-px: 2.1rem; font-size: 1.02rem; }
.btn-bloco { width: 100%; }

/* --------------------------------------------------------------------------
   6. Selos, pílulas e divisores
   -------------------------------------------------------------------------- */
.selo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.95rem 0.4rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-full);
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--fg-muted);
  backdrop-filter: blur(8px);
}

.selo .ponto {
  width: 7px;
  height: 7px;
  border-radius: var(--r-full);
  background: var(--brand-soft);
  box-shadow: 0 0 0 4px rgba(186, 0, 54, 0.2);
  animation: pulsar 2.4s var(--ease) infinite;
}

.pilula {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border-radius: var(--r-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg-muted);
}

.pilula-brand { background: rgba(186, 0, 54, 0.14); border-color: rgba(186, 0, 54, 0.32); color: var(--brand-soft); }
.pilula-ok    { background: color-mix(in srgb, var(--ok) 16%, transparent); border-color: color-mix(in srgb, var(--ok) 34%, transparent); color: var(--ok); }
.pilula-warn  { background: color-mix(in srgb, var(--warn) 16%, transparent); border-color: color-mix(in srgb, var(--warn) 34%, transparent); color: var(--warn); }
.pilula-info  { background: color-mix(in srgb, var(--info) 16%, transparent); border-color: color-mix(in srgb, var(--info) 34%, transparent); color: var(--info); }
.pilula-danger{ background: color-mix(in srgb, var(--danger) 16%, transparent); border-color: color-mix(in srgb, var(--danger) 34%, transparent); color: var(--danger); }

.divisor {
  height: 1px;
  border: 0;
  background: var(--grad-line);
  opacity: 0.5;
}

/* Ícone em caixa com gradiente de marca */
.caixa-icone {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: var(--r-md);
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--sh-brand);
}

.caixa-icone .icone { width: 22px; height: 22px; }

.caixa-icone-suave {
  background: rgba(186, 0, 54, 0.12);
  border: 1px solid rgba(186, 0, 54, 0.3);
  color: var(--brand-soft);
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   7. Fundos decorativos
   -------------------------------------------------------------------------- */
.fundo-grade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 25%, transparent 78%);
  opacity: 0.7;
}

.brilho {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.5;
}

.brilho-brand { background: radial-gradient(circle, rgba(186, 0, 54, 0.55), transparent 68%); }
.brilho-frio  { background: radial-gradient(circle, rgba(56, 189, 248, 0.28), transparent 68%); }

:root[data-tema="claro"] .brilho { opacity: 0.32; }

/* --------------------------------------------------------------------------
   8. Animações
   -------------------------------------------------------------------------- */
@keyframes pulsar {
  0%, 100% { box-shadow: 0 0 0 0 rgba(186, 0, 54, 0.42); }
  60%      { box-shadow: 0 0 0 8px rgba(186, 0, 54, 0); }
}

@keyframes flutuar {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

@keyframes deriva {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  33%  { transform: translate3d(4%, -6%, 0) scale(1.08); }
  66%  { transform: translate3d(-5%, 4%, 0) scale(0.95); }
  100% { transform: translate3d(0, 0, 0) scale(1); }
}

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

@keyframes correr {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes surgir {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

@keyframes varrer {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

@keyframes preencher {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

@keyframes piscar {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

/* Revelação no scroll — estado inicial aplicado por JS (html.js) */
.js [data-revelar] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  transition-delay: var(--atraso, 0ms);
  will-change: opacity, transform;
}

.js [data-revelar="esquerda"] { transform: translateX(-32px); }
.js [data-revelar="direita"]  { transform: translateX(32px); }
.js [data-revelar="escala"]   { transform: scale(0.94); }

.js [data-revelar].visivel {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   9. Utilitários
   -------------------------------------------------------------------------- */
.oculto { display: none !important; }

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

/* Logotipo: uma variante por tema, escolhida via CSS */
.logo-claro { display: none; }
:root[data-tema="claro"] .logo-escuro { display: none; }
:root[data-tema="claro"] .logo-claro { display: block; }

.centro-texto { text-align: center; }
.muted { color: var(--fg-muted); }
.subtle { color: var(--fg-subtle); }
.flex { display: flex; }
.linha { display: flex; align-items: center; gap: 0.75rem; }
.coluna { display: flex; flex-direction: column; }
.entre { justify-content: space-between; }
.envolver { flex-wrap: wrap; }
.icone { width: 20px; height: 20px; flex: none; }

.lista-checks { display: grid; gap: 0.8rem; }

.lista-checks li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  color: var(--fg-muted);
}

.lista-checks .icone {
  width: 20px;
  height: 20px;
  margin-top: 0.18rem;
  padding: 3px;
  border-radius: var(--r-full);
  background: rgba(186, 0, 54, 0.16);
  color: var(--brand-soft);
}

/* --------------------------------------------------------------------------
   10. Acessibilidade — movimento reduzido
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js [data-revelar] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* --------------------------------------------------------------------------
   11. Impressão
   -------------------------------------------------------------------------- */
@media print {
  .cabecalho-fixo,
  .menu-mobile,
  .navegacao-pontos,
  .voltar-topo,
  .dica-teclas,
  .barra-progresso,
  .brilho,
  .fundo-grade,
  .portal-cursor { display: none !important; }

  /* Nada pode ficar invisível por causa das animações de entrada */
  .js [data-revelar],
  .js [data-revelar]:not(.visivel) .portal-grafico span,
  .js [data-revelar]:not(.visivel) .portal-barra-trilha i {
    opacity: 1 !important;
    transform: none !important;
  }

  .painel-aba[hidden] { display: block !important; }
  .sanfona-corpo { grid-template-rows: 1fr !important; }

  body { background: #fff; color: #000; }
  .secao { padding-block: 1.5rem; break-inside: avoid; height: auto !important; max-height: none !important; overflow: visible !important; scroll-snap-align: none; }
  .hero, .rodape { height: auto !important; max-height: none !important; overflow: visible !important; scroll-snap-align: none; }
  html { scroll-snap-type: none; }
}

/* --------------------------------------------------------------------------
   12. Uma seção por tela (scroll-snap)
   -------------------------------------------------------------------------- */
@media (min-width: 960px) and (min-height: 640px) {
  html {
    scroll-snap-type: y mandatory;
    overscroll-behavior-y: contain;
  }

  .hero,
  .secao,
  .rodape {
    height: var(--slide-h);
    max-height: var(--slide-h);
    scroll-snap-align: start;
    scroll-snap-stop: always;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding-block: 0;
    padding-top: var(--header-h);
  }

  .hero > .wrap,
  .secao > .wrap,
  .rodape > .wrap {
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    padding-block: clamp(0.35rem, 1.1vh, 0.85rem);
    overflow: hidden;
    scrollbar-width: none;
  }

  .hero > .wrap::-webkit-scrollbar,
  .secao > .wrap::-webkit-scrollbar,
  .rodape > .wrap::-webkit-scrollbar { display: none; }

  .secao > .wrap:not([class*="-grade"]) {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .secao-inicio > .wrap {
    justify-content: flex-start;
    padding-top: clamp(0.85rem, 2vh, 1.5rem);
  }

  .cabecalho-secao {
    margin-bottom: clamp(0.4rem, 1.2vh, 0.9rem);
    flex-shrink: 0;
  }

  .cabecalho-secao .olho { margin-bottom: 0.45rem; }

  .cabecalho-secao p { margin-top: 0.4rem; }

  h1 { font-size: clamp(1.8rem, 1.15rem + 2vw, 2.85rem); }
  h2 { font-size: clamp(1.4rem, 0.95rem + 1.6vw, 2.25rem); }
}

@media (min-width: 960px) and (min-height: 640px) and (prefers-reduced-motion: reduce) {
  html { scroll-snap-type: none; }
}

@media (min-width: 960px) and (min-height: 640px) and (max-height: 820px) {
  .hero-sub { margin-top: 0.55rem; }
  .hero-acoes { margin-top: 0.85rem; }
  .hero-bullets { margin-top: 0.6rem; padding-top: 0.5rem; }
  .hero h1 { margin-block: 0.55rem 0; }
  .cabecalho-secao { margin-bottom: 0.4rem; }
  .cabecalho-secao p { font-size: 0.92rem; margin-top: 0.3rem; }
}