:root {
  --paper: #f4f1e8;
  --paper-2: #e9e4d7;
  --ink: #111713;
  --ink-2: #273129;
  --muted: #687169;
  --line: rgba(17,23,19,.16);
  --card: #fffdf7;
  --acid: #c8ff46;
  --blue: #3157f6;
  --orange: #ff7048;
  --aqua: #55e4c3;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html[lang="en"] [data-lang-panel="vi"],
html[lang="vi"] [data-lang-panel="en"] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(17,23,19,.14) .55px, transparent .55px);
  background-size: 7px 7px;
  font-family: var(--font);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "META Z / TRUST CENTER";
  position: fixed;
  right: -42px;
  top: 150px;
  z-index: -1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(17,23,19,.055);
  writing-mode: vertical-rl;
  font-size: clamp(4rem,8vw,8rem);
  font-weight: 900;
  letter-spacing: -.075em;
  pointer-events: none;
}
a { color: inherit; }
.legal-shell { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.legal-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 16px 20px 0;
  border: 0;
  background: linear-gradient(var(--paper) 0 68%, transparent);
}
.legal-nav .legal-shell { width: min(1280px, 100%); }
.legal-nav-inner {
  min-height: 68px;
  padding: 8px 12px 8px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,253,247,.94);
  box-shadow: 0 14px 44px rgba(12,18,14,.09);
  backdrop-filter: blur(18px);
}
.legal-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 900; letter-spacing: -.04em; }
.legal-brand img { width: 34px; height: 34px; object-fit: contain; border: 0; border-radius: 0; outline: 0; box-shadow: none; filter: none; background: transparent; }
.legal-back { min-height: 40px; padding: 0 14px; display: inline-flex; align-items: center; border: 1px solid var(--ink); border-radius: 11px; color: var(--ink); background: var(--acid); font-size: .74rem; font-weight: 800; text-decoration: none; }
.legal-back:hover { transform: translate(-1px,-1px); box-shadow: 3px 3px 0 var(--ink); }
.legal-nav-actions { display: flex; align-items: center; gap: 8px; }
.legal-language { display: inline-flex; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: var(--paper); }
.legal-language button { min-width: 40px; height: 32px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); font: 800 .68rem var(--font); cursor: pointer; }
.legal-language button.active { background: var(--ink); color: #fff; }

.legal-hero {
  min-height: 470px;
  margin-top: 30px;
  padding: 54px 54px 48px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 28px;
  background:
    radial-gradient(circle at 90% 16%, rgba(200,255,70,.92) 0 125px, transparent 127px),
    linear-gradient(135deg, var(--card), #f0ebdf);
  box-shadow: 12px 12px 0 var(--blue);
}
.legal-hero::after {
  content: "POLICY / CONTROL / TRUST";
  position: absolute;
  right: -5px;
  top: 54px;
  color: transparent;
  -webkit-text-stroke: 1px rgba(17,23,19,.1);
  font-size: clamp(3.3rem,7vw,7rem);
  font-weight: 900;
  letter-spacing: -.07em;
  white-space: nowrap;
  transform: rotate(-4deg);
  pointer-events: none;
}
.legal-hero > * { position: relative; z-index: 1; }
.legal-eyebrow { display: inline-flex; width: max-content; padding: 8px 11px; border: 1px solid var(--ink); border-radius: 999px; background: var(--acid); color: #111713; font-size: .65rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.legal-hero h1 { max-width: 870px; margin: 22px 0 18px; color: var(--ink); font-size: clamp(3.2rem,7vw,6.8rem); line-height: .92; letter-spacing: -.065em; }
.legal-hero p { max-width: 760px; margin: 0; color: var(--ink-2); font-size: 1rem; line-height: 1.7; }
.legal-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.legal-meta span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.55); color: #4f5951; font-size: .67rem; font-weight: 800; }

.legal-tabs {
  margin: 34px 0 22px;
  padding: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}
.legal-tabs a,
.legal-tabs button { min-height: 40px; padding: 0 14px; display: inline-flex; align-items: center; border: 0; border-radius: 9px; color: var(--muted); background: transparent; font: 800 .72rem var(--font); text-decoration: none; cursor: pointer; }
.legal-tabs a:hover,
.legal-tabs button:hover,
.legal-tabs button.active { background: var(--ink); color: #fff; }

.legal-card {
  margin: 0 0 18px;
  padding: clamp(28px,5vw,54px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: none;
  position: relative;
}
.legal-card:nth-of-type(even) { border-color: var(--ink); }
.legal-card h2 { margin: 0 0 12px; color: var(--ink); font-size: clamp(1.5rem,3vw,2.15rem); line-height: 1.1; letter-spacing: -.045em; }
.legal-card h3 { margin: 30px 0 9px; color: var(--blue); font-size: .78rem; font-weight: 900; letter-spacing: .045em; text-transform: uppercase; }
.legal-card p,
.legal-card li { max-width: 76ch; color: var(--muted); font-size: .9rem; }
.legal-card ul,
.legal-card ol { padding-left: 22px; }
.legal-card li + li { margin-top: 8px; }
.legal-card strong { color: var(--ink-2); }
.legal-card a:not(.legal-contact) { color: var(--blue); text-underline-offset: 3px; }
.legal-callout { margin: 24px 0; padding: 18px 20px; border: 1px solid var(--ink); border-radius: 14px; background: var(--acid); color: #111713; font-size: .86rem; line-height: 1.6; }
.legal-contact { display: inline-flex; margin-top: 4px; color: var(--blue); font-weight: 900; text-underline-offset: 4px; }

.messaging-hero {
  background:
    radial-gradient(circle at 90% 16%, rgba(85,228,195,.92) 0 125px, transparent 127px),
    linear-gradient(135deg, var(--card), #eef5ed);
}
.messaging-hero::after { content: "MESSAGING / AUTH / CONTROL"; }
.flow-grid { margin: 28px 0 20px; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
.flow-grid section { min-height: 190px; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); }
.flow-grid section > span { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 10px; background: var(--acid); color: var(--ink); font-size: .7rem; font-weight: 900; }
.flow-grid section strong { display: block; margin: 18px 0 6px; font-size: .94rem; }
.flow-grid section p { margin: 0; font-size: .8rem; line-height: 1.55; }
.legal-note { margin: 20px 0 0; padding: 18px 20px; border-left: 4px solid var(--blue); background: #edf1ff; }
.permission-table { margin: 26px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; }
.permission-row { display: grid; grid-template-columns: minmax(180px,.75fr) minmax(260px,1.25fr) minmax(260px,1fr); }
.permission-row > * { margin: 0; padding: 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .78rem; line-height: 1.55; }
.permission-row > * + * { border-left: 1px solid var(--line); }
.permission-row:last-child > * { border-bottom: 0; }
.permission-row strong { color: var(--ink); }
.permission-head { background: var(--ink); }
.permission-head strong { color: #fff; text-transform: uppercase; letter-spacing: .05em; font-size: .68rem; }
.policy-links { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.policy-links a { padding: 10px 13px; border: 1px solid var(--ink); border-radius: 10px; background: var(--acid); color: var(--ink) !important; font-size: .72rem; font-weight: 900; text-decoration: none; }
.control-grid { margin: 26px 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.control-grid section { padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }
.control-grid section strong { display: block; margin-bottom: 6px; font-size: .86rem; }
.control-grid section p { margin: 0; font-size: .79rem; line-height: 1.55; }

.legal-footer { margin-top: 34px; padding: 44px 0 62px; border-top: 1px solid var(--line); color: var(--muted); font-size: .78rem; }
.legal-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.legal-footer-links { display: flex; flex-wrap: wrap; gap: 7px; }
.legal-footer a { padding: 7px 9px; border-radius: 8px; color: var(--muted); text-decoration: none; }
.legal-footer a:hover { background: var(--paper-2); color: var(--ink); }

:focus-visible { outline: 3px solid rgba(49,87,246,.35); outline-offset: 3px; }

@media (max-width: 760px) {
  .legal-shell { width: min(100% - 24px,1180px); }
  .legal-nav { padding: 10px 10px 0; }
  .legal-nav-inner { min-height: 60px; padding: 7px 9px 7px 12px; }
  .legal-back { min-height: 38px; padding: 0 10px; font-size: .66rem; }
  .legal-nav-actions { gap: 5px; }
  .legal-language button { min-width: 34px; }
  .legal-hero { min-height: 420px; margin-top: 20px; padding: 34px 28px; border-radius: 20px; box-shadow: 7px 7px 0 var(--blue); }
  .legal-hero h1 { font-size: clamp(2.8rem,12vw,5rem); }
  .legal-tabs { flex-wrap: nowrap; width: 100%; overflow-x: auto; }
  .legal-tabs a { flex: 0 0 auto; }
  .legal-card { padding: 28px 22px; border-radius: 17px; }
  .flow-grid { grid-template-columns: 1fr; }
  .flow-grid section { min-height: 0; }
  .permission-table { overflow-x: auto; }
  .permission-row { min-width: 820px; }
  .control-grid { grid-template-columns: 1fr; }
  .legal-footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 440px) {
  .legal-brand span { display: none; }
  .legal-hero { min-height: 450px; padding: 28px 22px; }
  .legal-hero h1 { font-size: 2.75rem; }
  .legal-meta span { width: 100%; }
}

@media print {
  .legal-nav,
  .legal-tabs,
  .legal-footer { display: none; }
  body { background: #fff; color: #000; }
  .legal-shell { width: 100%; }
  .legal-hero,
  .legal-card { border: 0; box-shadow: none; break-inside: avoid; }
  .legal-hero { min-height: 0; padding: 24px 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}