:root {
  color-scheme: light dark;
  --bg: #0b0d12;
  --surface: #121620;
  --surface-strong: #191e2b;
  --text: #f4f6fb;
  --muted: #a9b1c2;
  --line: #293044;
  --accent: #8b5cf6;
  --accent-strong: #a78bfa;
  --max: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 280px;
  background:
    radial-gradient(circle at 80% 0, rgba(139, 92, 246, 0.18), transparent 34rem),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--accent-strong);
}

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

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

.site-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(11, 13, 18, 0.82);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, #7c3aed, #2563eb);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.93rem;
}

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

.hero {
  padding: 112px 0 86px;
}

.eyebrow {
  margin: 0 0 16px;
  color: #c4b5fd;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.2rem);
}

.hero-copy {
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: var(--surface);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
}

.button:hover {
  color: var(--text);
  border-color: #48516b;
  transform: translateY(-1px);
}

.section {
  padding: 76px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.section h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-intro {
  max-width: 690px;
  margin: 0 0 30px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(160deg, var(--surface-strong), var(--surface));
}

.card-number {
  display: block;
  margin-bottom: 34px;
  color: #c4b5fd;
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.provider-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.provider-list span {
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface);
}

.content {
  width: min(calc(100% - 40px), 820px);
  margin: 0 auto;
  padding: 72px 0 96px;
}

.content h1 {
  font-size: clamp(2.5rem, 7vw, 4.6rem);
}

.content h2 {
  margin: 48px 0 12px;
  font-size: 1.55rem;
}

.content h3 {
  margin: 32px 0 10px;
  font-size: 1.15rem;
}

.content p,
.content li {
  color: var(--muted);
}

.content strong {
  color: var(--text);
}

.content code {
  padding: 0.15em 0.35em;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--text);
  background: var(--surface);
}

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid #51426e;
  border-radius: 14px;
  background: rgba(139, 92, 246, 0.09);
  color: var(--muted);
}

.site-footer {
  padding: 34px 0 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

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

@media (max-width: 760px) {
  .nav {
    min-height: auto;
    padding: 16px 0;
    align-items: flex-start;
  }

  .nav-links {
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero {
    padding: 76px 0 60px;
  }

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

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

@media (max-width: 470px) {
  .nav {
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .actions .button {
    width: 100%;
  }
}