:root {
  --bg: #0a0a0a;
  --bg-soft: #111113;
  --line: #27272b;
  --text: #f4f4f5;
  --text-soft: #a1a1aa;
  --accent: #f5f5f5;
  --accent-dark: #111113;
  --brand-glow: radial-gradient(1000px 280px at 50% -120px, rgba(255, 255, 255, 0.14), transparent 72%);
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--brand-glow);
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--container), calc(100vw - 56px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(10, 10, 10, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.topbar-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.menu {
  display: flex;
  gap: 22px;
}

.menu a {
  color: var(--text-soft);
  font-size: 0.94rem;
  transition: color 180ms ease;
}

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

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.56rem 1rem;
  transition: 170ms ease;
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-soft);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.36);
  color: var(--text);
}

.btn-solid {
  background: var(--accent);
  color: var(--accent-dark);
}

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

.hero {
  padding-top: 86px;
}

.eyebrow {
  display: inline-block;
  margin: 0;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-soft);
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.03em;
}

h1 {
  margin-top: 14px;
  font-size: clamp(2.3rem, 7.8vw, 5.8rem);
  line-height: 0.95;
  max-width: 11ch;
}

.lead {
  margin: 20px 0 0;
  max-width: 56ch;
  color: var(--text-soft);
  font-size: 1.06rem;
}

.prompt-shell {
  margin-top: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border-radius: 26px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.prompt-shell p {
  margin: 0;
  color: #dedee3;
}

.prompt-cta {
  flex-shrink: 0;
  background: #fff;
  color: #0a0a0a;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-weight: 600;
}

.quick-links {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-links a {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 0.48rem 0.8rem;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.section {
  margin-top: 52px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.section h2 {
  font-size: clamp(1.65rem, 3.6vw, 3rem);
}

.link-inline {
  color: var(--text-soft);
  font-size: 0.9rem;
  text-decoration: underline;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

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

.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  padding: 18px;
  min-height: 176px;
  transition: border-color 180ms ease, transform 180ms ease;
}

.feature-card:hover {
  border-color: rgba(255, 255, 255, 0.34);
  transform: translateY(-3px);
}

.feature-card-wide {
  min-height: 0;
}

.feature-card p {
  margin: 10px 0 0;
  color: var(--text-soft);
}

.card-kicker {
  margin: 0;
  color: #d4d4d8;
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.feature-card h3 {
  margin-top: 8px;
  font-size: 1.32rem;
  line-height: 1.1;
}

.story-card {
  min-height: 198px;
}

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.principles li {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 12px 16px;
  font-weight: 500;
}

.cta-wrap {
  margin-bottom: 70px;
}

.cta-box {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 26px;
  padding: 30px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03));
}

.cta-box p {
  margin: 10px 0 20px;
  color: #d4d4d8;
}

.cta-box a[href^="mailto"] {
  text-decoration: underline;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-soft);
  font-size: 0.88rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
}

[data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 480ms ease, transform 480ms ease;
}

@media (max-width: 980px) {
  .cards-grid,
  .cards-grid-2 {
    grid-template-columns: 1fr;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(var(--container), calc(100vw - 28px));
  }

  .menu,
  .topbar-actions .btn-ghost {
    display: none;
  }

  .topbar-inner {
    min-height: 66px;
  }

  .hero {
    padding-top: 52px;
  }

  .prompt-shell {
    flex-direction: column;
    align-items: stretch;
  }

  .prompt-cta {
    text-align: center;
  }

  .cta-box {
    padding: 22px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal].is-in,
  .feature-card,
  .btn {
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}