:root {
  --bg: #071018;
  --panel: #0d1924;
  --panel-soft: #112231;
  --text: #f3f7fa;
  --muted: #a5b4c0;
  --line: rgba(255,255,255,.10);
  --accent: #38d6a4;
  --accent-dark: #062d24;
  --blue: #58a6ff;
  --danger: #ffb4a9;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 75% 10%, rgba(56,214,164,.12), transparent 28rem),
    radial-gradient(circle at 15% 35%, rgba(88,166,255,.08), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: inherit; }

.wrap {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7,16,24,.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 850;
  text-decoration: none;
  letter-spacing: .04em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  color: #04130f;
  background: var(--accent);
  font-size: .85rem;
}

.nav-links,
.language,
.actions,
footer nav {
  display: flex;
  align-items: center;
}

.nav-links { gap: 20px; }

.nav-links a,
footer nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: .9rem;
}

.nav-links a:hover,
footer nav a:hover {
  color: var(--text);
}

.language { gap: 8px; }

.language a {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  text-decoration: none;
  color: var(--muted);
  font-size: .78rem;
}

.language a[aria-current="page"] {
  color: var(--accent);
  border-color: rgba(56,214,164,.45);
  background: rgba(56,214,164,.08);
}

.hero {
  padding: 96px 0 70px;
  display: grid;
  grid-template-columns: minmax(0,1.25fr) minmax(310px,.75fr);
  align-items: center;
  gap: 64px;
}

.kicker {
  color: var(--accent);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 15px 0 20px;
  font-size: clamp(2.5rem,6vw,5.4rem);
  line-height: .98;
  letter-spacing: -.055em;
}

h2 {
  margin: 8px 0 12px;
  font-size: clamp(2rem,4vw,3.3rem);
  line-height: 1.08;
  letter-spacing: -.04em;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.05rem,2vw,1.25rem);
}

.actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 21px;
  border-radius: 11px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 760;
}

.button.primary {
  color: #04130f;
  border-color: var(--accent);
  background: var(--accent);
}

.button.secondary {
  background: rgba(255,255,255,.035);
}

.hero-card,
.card,
.faq details,
.notice {
  border: 1px solid var(--line);
  background: linear-gradient(145deg,rgba(17,34,49,.96),rgba(10,22,32,.96));
  border-radius: 18px;
}

.hero-card,
.card,
.notice {
  padding: 26px;
}

.flow-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 15px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.flow-row:last-child { border-bottom: 0; }

.flow-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--accent);
  background: var(--accent-dark);
  font-weight: 850;
}

.flow-row strong { display: block; }

.flow-row span {
  color: var(--muted);
  font-size: .9rem;
}

.trust {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 92px;
}

.trust div {
  padding: 21px;
  background: rgba(255,255,255,.025);
  border-right: 1px solid var(--line);
}

.trust div:last-child { border-right: 0; }

.trust strong {
  display: block;
  color: var(--accent);
}

.trust span,
.section-head p,
.card p,
.notice p,
.faq p,
footer p,
footer small {
  color: var(--muted);
}

section { padding: 76px 0; }

.section-head {
  max-width: 760px;
  margin-bottom: 35px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 18px;
}

.card-number {
  color: var(--accent);
  font-size: .76rem;
  font-weight: 850;
  letter-spacing: .12em;
}

.card h3 {
  margin: 13px 0 8px;
  font-size: 1.25rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: start;
}

.checks {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checks li {
  position: relative;
  padding: 12px 0 12px 32px;
  border-bottom: 1px solid var(--line);
}

.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 900;
}

.notice {
  border-color: rgba(255,180,169,.25);
}

.notice strong { color: var(--danger); }

.faq {
  display: grid;
  gap: 12px;
}

.faq details { padding: 0 22px; }

.faq summary {
  padding: 20px 0;
  cursor: pointer;
  font-weight: 760;
}

.faq p { margin: 0 0 20px; }

.topic-panel-section {
  padding-top: 38px;
}

.topic-panel {
  display: grid;
  grid-template-columns: minmax(0,.78fr) minmax(320px,1fr);
  gap: 28px;
  align-items: start;
  padding: 28px;
  border: 1px solid rgba(56,214,164,.24);
  border-radius: 22px;
  background: linear-gradient(135deg,rgba(56,214,164,.10),rgba(88,166,255,.06));
}

.topic-panel h2 {
  margin-top: 8px;
  font-size: clamp(1.65rem,3vw,2.6rem);
}

.topic-panel p {
  margin: 0;
  color: var(--muted);
}

.topic-dropdown {
  position: relative;
}

.topic-dropdown > summary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 12px;
  color: #04130f;
  background: var(--accent);
  cursor: pointer;
  font-weight: 820;
  list-style: none;
}

.topic-dropdown > summary::-webkit-details-marker {
  display: none;
}

.topic-dropdown > summary::after {
  content: "+";
  margin-left: 10px;
  font-size: 1.35rem;
  line-height: 1;
}

.topic-dropdown[open] > summary::after {
  content: "-";
}

.topic-dropdown > .seo-hub {
  margin-top: 14px;
}

.seo-hub {
  display: grid;
  gap: 12px;
}

.seo-hub details {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(145deg,rgba(17,34,49,.94),rgba(10,22,32,.94));
  overflow: hidden;
}

.seo-hub summary {
  display: grid;
  gap: 4px;
  padding: 20px 22px;
  cursor: pointer;
  font-weight: 780;
}

.seo-hub summary::marker {
  color: var(--accent);
}

.seo-hub summary small {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 520;
}

.seo-link-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px;
  padding: 0 22px 22px;
}

.seo-link-grid a {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  color: var(--text);
  background: rgba(255,255,255,.03);
  text-decoration: none;
  font-weight: 680;
}

.seo-link-grid a:hover {
  border-color: rgba(56,214,164,.35);
  background: rgba(56,214,164,.08);
}

.table-wrap {
  width: 100%;
  margin: 24px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
  background: rgba(255,255,255,.025);
}

th,
td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--accent);
  font-size: .85rem;
}

td {
  color: var(--muted);
}

tr:last-child td {
  border-bottom: 0;
}

.cta {
  margin: 70px auto;
  padding: 48px;
  text-align: center;
  border: 1px solid rgba(56,214,164,.28);
  border-radius: 22px;
  background: linear-gradient(135deg,rgba(56,214,164,.13),rgba(88,166,255,.07));
}

.cta h2 {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.cta .actions { justify-content: center; }

footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 52px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

footer nav {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}

.footer-links section {
  padding: 0;
}

.footer-links h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: .88rem;
}

.footer-links nav {
  display: grid;
  gap: 8px;
}

.footer-links a {
  width: fit-content;
}

.support-inline {
  margin-top: 18px;
}

.support-inline .button {
  min-height: 42px;
  padding-inline: 15px;
  font-size: .9rem;
}

.support-copy-status {
  min-height: 22px;
  margin-top: 8px;
  color: var(--accent);
  font-size: .88rem;
  font-weight: 760;
}

@media (max-width: 850px) {
  .hero,
  .two-col {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 65px;
    gap: 35px;
  }

  .grid-3 { grid-template-columns: 1fr; }

  .trust { grid-template-columns: 1fr 1fr; }

  .topic-panel {
    grid-template-columns: 1fr;
  }

  .nav-links { display: none; }

  .footer-row { flex-direction: column; }

  footer nav { justify-content: flex-start; }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .seo-link-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .wrap {
    width: min(calc(100% - 28px),var(--max));
  }

  .hero { padding-top: 52px; }

  .trust { grid-template-columns: 1fr; }

  .trust div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .cta { padding: 32px 20px; }

  .button { width: 100%; }
}