/* ---------------------------------------------------------------
   Test domain site — styles
   --------------------------------------------------------------- */

:root {
  --bg: #0b0f14;
  --bg-soft: #111823;
  --panel: #151d29;
  --panel-2: #1b2432;
  --border: #263241;
  --text: #e7edf5;
  --text-dim: #9fb0c4;
  --accent: #4dabf7;
  --accent-soft: rgba(77, 171, 247, 0.14);
  --warn: #ffb454;
  --warn-soft: rgba(255, 180, 84, 0.12);
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1080px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fa;
    --bg-soft: #ffffff;
    --panel: #ffffff;
    --panel-2: #f0f3f7;
    --border: #d8e0ea;
    --text: #111823;
    --text-dim: #55637450;
    --text-dim: #556374;
    --accent: #1c6fd0;
    --accent-soft: rgba(28, 111, 208, 0.1);
    --warn: #a2670a;
    --warn-soft: rgba(162, 103, 10, 0.1);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

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

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 64px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 4px var(--warn-soft);
  flex: none;
}

.site-nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text);
}

/* ---------- language switcher ---------- */

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.lang-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.lang-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--panel);
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 13px;
  cursor: pointer;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.is-active {
  background: var(--accent);
  color: #fff;
}

/* ---------- banner ---------- */

.test-banner {
  background: var(--warn-soft);
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 0.92rem;
}

.test-banner[hidden] {
  display: none;
}

.banner-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 20px;
}

.banner-inner p {
  margin: 0;
}

.banner-inner strong {
  color: var(--warn);
}

.banner-close {
  margin-left: auto;
  flex: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  border-radius: 999px;
  width: 26px;
  height: 26px;
  line-height: 1;
  font-size: 15px;
  cursor: pointer;
}

.banner-close:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

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

.hero {
  padding: 76px 0 64px;
  background:
    radial-gradient(
      900px 380px at 12% -10%,
      var(--accent-soft),
      transparent 70%
    ),
    var(--bg);
  border-bottom: 1px solid var(--border);
}

.badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 20ch;
}

.hero p.lead {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--text-dim);
  max-width: 62ch;
  margin: 0 0 30px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 85%, #000);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: var(--panel);
}

.btn-ghost:hover {
  border-color: var(--text-dim);
}

/* ---------- sections ---------- */

.section {
  padding: 62px 0;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type {
  border-bottom: 0;
}

.section h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  letter-spacing: -0.015em;
  margin: 0 0 20px;
}

.section p {
  color: var(--text-dim);
  max-width: 74ch;
}

.section p + p {
  margin-top: 14px;
}

/* ---------- fact grid ---------- */

.fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.fact {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.fact dt {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.fact dd {
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
}

/* ---------- faq ---------- */

.faq-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

details.faq-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
}

details.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--text-dim);
  font-weight: 700;
}

details.faq-item[open] summary::after {
  content: "–";
}

details.faq-item p {
  margin: 12px 0 2px;
  color: var(--text-dim);
}

/* ---------- notice callout ---------- */

.callout {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 4px solid var(--warn);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  margin-top: 8px;
}

.callout h2 {
  margin-top: 0;
}

/* ---------- policy page ---------- */

.policy {
  padding: 56px 0 72px;
}

.policy-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 26px;
  margin-bottom: 34px;
}

.policy-header h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.policy-header .updated {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0;
}

.policy .intro {
  font-size: 1.05rem;
}

.policy h2 {
  font-size: 1.2rem;
  margin: 34px 0 12px;
  letter-spacing: -0.01em;
}

.policy ul {
  color: var(--text-dim);
  padding-left: 22px;
  max-width: 74ch;
}

.policy li + li {
  margin-top: 7px;
}

.policy .back {
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-weight: 600;
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 34px 0 40px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-inner p {
  margin: 0;
  max-width: 62ch;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    padding-bottom: 10px;
    gap: 14px;
  }

  .lang-switch {
    margin-left: auto;
  }

  .hero {
    padding: 52px 0 46px;
  }

  .section {
    padding: 46px 0;
  }
}

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