/* CHAiTS — pagine statiche legali/supporto
 * Token di colore e tipografia presi da .claude/skills/chaits-design/colors_and_type.css
 * (fonte di verità: frontend/lib/config/theme.dart). Nessun framework, CSS puro.
 */

:root {
  --color-primary: #7C3AED;
  --color-primary-container: #EDE4FF;
  --color-on-primary: #FFFFFF;
  --color-on-primary-container: #21005D;

  --color-bg: #FFFFFF;
  --color-bg-dark: #0D0D0D;
  --color-surface-variant: #F3F1F7;

  --color-fg1: #1C1B1F;
  --color-fg-on-surface-variant: #49454F;

  --color-warn: #B45309;
  --color-warn-container: #FFF7E6;
  --color-warn-border: #FCD9A0;
  --color-warn-fg: #78350F;

  --color-grey-50: #F8FAFC;
  --color-grey-200: #E2E8F0;
  --color-grey-400: #94A3B8;
  --color-grey-500: #64748B;
  --color-grey-700: #334155;

  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-logo: 'Leckerli One', cursive;

  --r-md: 10px;
  --r-lg: 12px;
  --r-xl: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-fg1);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
  background: var(--color-bg);
  padding: 8px 12px;
  border-radius: var(--r-md);
  z-index: 100;
}

/* ─── Header ─────────────────────────────────────────────────────────── */

header.site-header {
  background: var(--color-bg-dark);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 26px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}
.brand-logo .logo-c {
  font-family: var(--font-logo);
  font-weight: 400;
  font-size: 30px;
  color: var(--color-primary);
}

nav.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 500;
}
nav.site-nav a { color: #E2D9FF; }
nav.site-nav a:hover { color: #FFFFFF; }

/* ─── Language switch (CSS-only, no JS) ─────────────────────────────── */

.lang-switch {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 9999px;
  padding: 3px;
}
.lang-switch a {
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  color: #D8CCFF;
}
.lang-switch a.active {
  background: var(--color-primary);
  color: #FFFFFF;
  text-decoration: none;
}

/* ─── Layout ──────────────────────────────────────────────────────────── */

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.hero {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 20px 48px;
  text-align: center;
}

h1 {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
h2 {
  font-size: 21px;
  line-height: 1.3;
  font-weight: 700;
  margin: 36px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--color-grey-200);
}
h2:first-of-type { border-top: none; padding-top: 0; }
h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 20px 0 8px;
}
p, li {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--color-fg1);
}
p { margin: 0 0 14px; }
ul, ol { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }
strong { font-weight: 600; }

.lede {
  font-size: 18px;
  line-height: 1.5;
  color: var(--color-fg-on-surface-variant);
  max-width: 620px;
  margin: 0 auto 28px;
}

.meta {
  font-size: 13px;
  color: var(--color-grey-500);
  margin-bottom: 28px;
}

/* ─── AI badge (conformità store: natura AI sempre dichiarata) ──────── */

.ai-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 12px 5px 8px;
  border-radius: 9999px;
  margin-bottom: 18px;
}
.ai-pill .dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FFFFFF;
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ─── Cards / grid ───────────────────────────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 28px 0 8px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.card {
  background: var(--color-surface-variant);
  border-radius: var(--r-xl);
  padding: 20px;
  text-align: left;
}
.card h3 { margin-top: 0; font-size: 15px; }
.card p { font-size: 14px; margin-bottom: 0; color: var(--color-fg-on-surface-variant); }

/* ─── Callout / legal-review notice ──────────────────────────────────── */

.callout {
  background: var(--color-warn-container);
  border: 1px solid var(--color-warn-border);
  color: var(--color-warn-fg);
  border-radius: var(--r-md);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 28px;
}
.callout strong { color: var(--color-warn-fg); }

.callout.violet {
  background: var(--color-primary-container);
  border-color: #C7B6F5;
  color: var(--color-on-primary-container);
}

/* ─── Buttons ─────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 9999px;
  text-decoration: none !important;
}
.btn:hover { opacity: 0.9; }
.btn.secondary {
  background: var(--color-surface-variant);
  color: var(--color-fg1) !important;
}

.btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 24px 0 8px;
}

/* ─── Table (privacy data table) ─────────────────────────────────────── */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
}
th, td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--color-grey-200);
  vertical-align: top;
}
th {
  background: var(--color-grey-50);
  font-weight: 600;
  color: var(--color-fg-on-surface-variant);
}

/* ─── FAQ ─────────────────────────────────────────────────────────────── */

details.faq {
  background: var(--color-surface-variant);
  border-radius: var(--r-lg);
  padding: 4px 16px;
  margin-bottom: 10px;
}
details.faq summary {
  font-weight: 600;
  font-size: 15px;
  padding: 12px 0;
  cursor: pointer;
}
details.faq[open] summary { padding-bottom: 4px; }
details.faq p { padding-bottom: 12px; }

/* ─── Footer ──────────────────────────────────────────────────────────── */

footer.site-footer {
  border-top: 1px solid var(--color-grey-200);
  padding: 28px 20px 40px;
  text-align: center;
  font-size: 13px;
  color: var(--color-grey-500);
}
footer.site-footer a { color: var(--color-grey-700); }
footer.site-footer .foot-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

/* ─── Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  h1 { font-size: 25px; }
  .hero { padding: 40px 16px 36px; }
  main { padding: 28px 16px 56px; }
  nav.site-nav { font-size: 13px; gap: 12px; }
}