:root {
  color-scheme: dark light;
  --canvas: #252a34;
  --surface: #303744;
  --surface-raised: #39414f;
  --line: #4d5868;
  --ink: #f5f7f8;
  --muted: #c7ced7;
  --accent: #08d9d6;
  --accent-ink: #162126;
  font-family: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--canvas); }

body {
  min-width: 280px;
  margin: 0;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(255, 255, 255, 0.025) 50%, transparent 50.2%),
    var(--canvas);
  color: var(--ink);
  line-height: 1.6;
}

a { color: inherit; }

.site-header {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: var(--canvas);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--muted);
  box-shadow: inset 0 -3px var(--accent);
  font-size: 0.72rem;
}

.language-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 0.72rem;
}

.language-nav a { color: var(--muted); text-decoration: none; }
.language-nav a[aria-current='page'], .language-nav a:hover { color: var(--accent); }

main { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(270px, 0.9fr);
  gap: clamp(38px, 8vw, 100px);
  align-items: center;
  min-height: min(720px, calc(100dvh - 64px));
  padding: clamp(64px, 9vw, 110px) 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1, h2, h3 { margin-top: 0; line-height: 1.08; }

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(2.35rem, 6vw, 5.3rem);
  letter-spacing: -0.055em;
}

.lead {
  max-width: 670px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
}

.primary-link {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  padding: 0 22px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
}

.primary-link:hover { filter: brightness(1.06); }

.privacy-card {
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  background: var(--surface);
}

.privacy-card strong { display: block; margin-bottom: 12px; font-size: 1.25rem; }
.privacy-card p { margin: 0; color: var(--muted); }

.section { padding: clamp(56px, 8vw, 96px) 0; border-top: 1px solid var(--line); }
.section > header { max-width: 700px; margin-bottom: 34px; }
.section h2 { margin-bottom: 14px; font-size: clamp(1.75rem, 4vw, 3rem); letter-spacing: -0.04em; }
.section > header p { margin: 0; color: var(--muted); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.feature-grid article { padding: clamp(22px, 3vw, 34px); background: var(--surface); }
.feature-grid h3 { margin-bottom: 12px; font-size: 1.05rem; }
.feature-grid p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.steps article { counter-increment: step; }
.steps article::before { display: block; margin-bottom: 15px; color: var(--accent); font-family: ui-monospace, monospace; content: '0' counter(step); }
.steps p { margin: 0; color: var(--muted); }

.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { min-height: 52px; padding: 15px 34px 15px 0; font-weight: 700; cursor: pointer; }
.faq details p { max-width: 780px; margin: 0; padding: 0 30px 20px 0; color: var(--muted); }

.legal-note { padding: 22px; border-left: 3px solid var(--accent); background: var(--surface-raised); color: var(--muted); }

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
}

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

@media (max-width: 760px) {
  .site-header { align-items: flex-start; flex-direction: column; padding-block: 14px; }
  .language-nav { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-block: 62px; }
  .feature-grid, .steps { grid-template-columns: 1fr; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}