/*
 * Estilos do site do SafeCircle.
 *
 * Sem framework, sem fonte externa, sem CDN e sem analytics: o site de um app
 * de privacidade não deveria carregar recurso de terceiro nenhum. Toda
 * requisição sai do próprio domínio, o que também torna a CSP trivial.
 *
 * Paleta espelha `apps/mobile/src/theme/colors.ts`. O tema claro existe porque
 * as páginas legais são longas e muita gente lê melhor assim; a escolha segue
 * a preferência do sistema.
 */

:root {
  --bg: #0b1220;
  --surface: #131c2e;
  --surface-2: #18243a;
  --text: #f8fafc;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-strong: #60a5fa;
  --accent: #22c55e;
  --danger: #f87171;
  --border: #1e293b;
  --max: 68rem;
  --radius: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --text: #0f172a;
    --muted: #475569;
    --primary: #1d4ed8;
    --primary-strong: #1e40af;
    --accent: #15803d;
    --danger: #b91c1c;
    --border: #e2e8f0;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Foco sempre visível: navegação por teclado não pode ficar perdida. */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--primary-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 12px 18px;
  z-index: 10;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ------------------------------------------------------------------ topo */

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 5;
}

header.site .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.brand picture,
.brand img {
  display: block;
}
.brand img {
  height: 34px;
  width: auto;
}

nav.site ul {
  display: flex;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
nav.site a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}
nav.site a:hover,
nav.site a[aria-current="page"] {
  color: var(--text);
}

/* ------------------------------------------------------------------ hero */

.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
  max-width: 20ch;
}
.hero p.lead {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--muted);
  margin: 0 0 32px;
  max-width: 58ch;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  font-size: 16px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-strong);
}
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--primary);
}

.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 20px;
}

/* --------------------------------------------------------------- seções */

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type {
  border-bottom: 0;
}
section h2 {
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
section > .container > p {
  color: var(--muted);
  max-width: 62ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.principles {
  list-style: none;
  padding: 0;
  margin: 30px 0 0;
  display: grid;
  gap: 14px;
}
.principles li {
  background: var(--surface-2);
  border-left: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
}
.principles strong {
  display: block;
  margin-bottom: 2px;
}
.principles span {
  color: var(--muted);
  font-size: 15.5px;
}

.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  margin: 28px 0 0;
}
.note p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}
.note strong {
  color: var(--text);
}

/* -------------------------------------------------------- páginas legais */

.legal {
  padding: 56px 0 72px;
}
.legal .container {
  max-width: 50rem;
}
.legal h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 8px;
}
.legal .updated {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 40px;
}
.legal h2 {
  font-size: 1.3rem;
  margin: 44px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.legal h3 {
  font-size: 1.05rem;
  margin: 26px 0 8px;
}
.legal p,
.legal li {
  color: var(--muted);
}
.legal strong {
  color: var(--text);
}
.legal ul {
  padding-left: 22px;
}
.legal li {
  margin-bottom: 8px;
}

.table-wrap {
  overflow-x: auto;
  margin: 20px 0;
  border: 1px solid var(--border);
  border-radius: 10px;
}
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 480px;
  font-size: 15.5px;
}
th,
td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
}
td {
  color: var(--muted);
}
tr:last-child td {
  border-bottom: 0;
}

a {
  color: var(--primary-strong);
}
@media (prefers-color-scheme: light) {
  a {
    color: var(--primary);
  }
}

/* ----------------------------------------------------------------- rodapé */

footer.site {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--muted);
  font-size: 15px;
}
footer.site .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
footer.site ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
footer.site a {
  text-decoration: none;
}
footer.site a:hover {
  text-decoration: underline;
}