:root {
  color-scheme: dark;
  --bg: #000000;
  --surface: #16181c;
  --surface-strong: #1d1f23;
  --surface-soft: rgba(29, 31, 35, 0.7);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f7f9f9;
  --muted: #8b98a5;
  --accent: #1d9bf0;
  --accent-soft: rgba(29, 155, 240, 0.14);
  --success: #00ba7c;
  --max: 1140px;
  --radius: 24px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Public Sans", "IBM Plex Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(29, 155, 240, 0.16), transparent 24rem),
    radial-gradient(circle at top left, rgba(0, 186, 124, 0.1), transparent 24rem),
    linear-gradient(180deg, #0a0d12 0%, #000 60%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
  opacity: 0.22;
}

a {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.site-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(18px);
  background: rgba(0, 0, 0, 0.66);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: #0f1419;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-name,
.hero h1,
.section-title,
.card-title,
.stat-value,
.page-title,
.scenario-title {
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-tag {
  color: var(--muted);
  font-size: 0.84rem;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.nav a,
.chip-link {
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

.nav a:hover,
.chip-link:hover {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}

.page {
  padding: 44px 0 96px;
}

.hero,
.section-card,
.callout,
.scenario-card,
.step,
.privacy-block,
.mini-card {
  background: linear-gradient(180deg, rgba(29, 31, 35, 0.94), rgba(16, 18, 22, 0.88));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero {
  border-radius: 32px;
  padding: 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.95fr);
  gap: 24px;
  overflow: hidden;
}

.eyebrow,
.page-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(29, 155, 240, 0.24);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
}

.hero h1,
.page-title {
  margin: 18px 0 14px;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.lede,
.page-lede {
  margin: 0;
  color: #d9e1e8;
  font-size: 1.14rem;
  line-height: 1.7;
  max-width: 62ch;
}

.hero-actions,
.footer-links,
.cta-row,
.meta-list,
.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
  border: 1px solid transparent;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--text);
  color: #000;
}

.button-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.hero-side {
  display: grid;
  gap: 14px;
}

.stat-grid,
.card-grid,
.scenario-grid,
.mini-grid,
.step-grid {
  display: grid;
  gap: 16px;
}

.stat-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat {
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  padding: 18px;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-value {
  display: block;
  margin-top: 10px;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
  font-weight: 700;
}

.stat-copy {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.section {
  margin-top: 20px;
}

.section-card,
.callout,
.privacy-block {
  border-radius: 28px;
  padding: 28px;
}

.section-header {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.section-title {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.section-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  max-width: 70ch;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mini-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.step-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.scenario-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mini-card,
.scenario-card,
.step {
  border-radius: 24px;
  padding: 22px;
}

.card-kicker,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.card-title,
.scenario-title {
  margin: 16px 0 10px;
  font-size: 1.5rem;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.card-copy,
.scenario-copy,
.step p,
.privacy-block p,
.privacy-block li,
.meta-list li,
.footer-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.meta-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.meta-list li {
  width: calc(50% - 6px);
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.step {
  display: grid;
  gap: 14px;
}

.step h3,
.privacy-block h2,
.privacy-block h3 {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: -0.03em;
}

.page-head {
  margin-bottom: 18px;
}

.page-panel {
  display: grid;
  gap: 20px;
}

.callout {
  display: grid;
  gap: 14px;
}

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

.privacy-block ul {
  margin: 0;
  padding-left: 18px;
}

.footer {
  padding: 28px 0 52px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
}

.footer-note {
  max-width: 54ch;
}

.footer-links a {
  color: var(--muted);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 960px) {
  .hero,
  .card-grid,
  .step-grid,
  .mini-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px;
  }

  .topbar-inner {
    padding: 10px 0;
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-shell,
  .topbar-inner,
  .footer-inner {
    width: min(calc(100% - 24px), var(--max));
  }

  .page {
    padding: 28px 0 72px;
  }

  .hero,
  .section-card,
  .callout,
  .privacy-block {
    border-radius: 24px;
    padding: 22px;
  }

  .hero h1,
  .page-title {
    font-size: clamp(2.25rem, 16vw, 3.2rem);
  }

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

  .meta-list li {
    width: 100%;
  }

  .nav {
    gap: 8px;
  }

  .nav a,
  .chip-link,
  .button {
    width: 100%;
    justify-content: center;
  }
}