:root {
  --red: #e51937;
  --red-dark: #c41230;
  --black: #0a0a0a;
  --gray-900: #17171a;
  --gray-700: #4a4a4f;
  --gray-400: #8a8a90;
  --gray-100: #f4f4f6;
  --white: #ffffff;
  --max-width: 1200px;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  line-height: 1.5;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 16px; }

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); text-align: center; }
h3 { font-size: 1.2rem; }

p { color: var(--gray-700); margin: 0 0 16px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--red);
  margin: 0 0 8px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); }

.btn-outline { border-color: var(--black); color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--white); }

.btn-outline-light { border-color: var(--white); color: var(--white); }
.btn-outline-light:hover { background: var(--white); color: var(--black); }

.btn-ghost { color: var(--black); padding: 12px 16px; }
.btn-ghost:hover { color: var(--red); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #eaeaea;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo { flex-shrink: 0; display: flex; align-items: center; gap: 8px; }
.logo img { width: 28px; height: 28px; }
.logo-text { font-size: 1.15rem; font-weight: 800; color: var(--black); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--black);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 1;
  min-width: 0;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 16px;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.main-nav ul a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--gray-900);
}
.main-nav ul a:hover { color: var(--red); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Hero */
.hero { padding: 64px 0 40px; }

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
}

.hero-copy p { font-size: 1.15rem; max-width: 46ch; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* Announcements */
.announcements { background: var(--gray-100); padding: 18px 0; }

.announcements-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }

.announcements-list {
  display: flex;
  list-style: none;
  gap: 24px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-700);
}

/* Platform pillars */
.platform { padding: 80px 0; }

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

.pillar-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pillar-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid #ececec;
  background: var(--white);
}

/* Network / stats */
.network { padding: 80px 0; background: var(--black); color: var(--white); }

.network h2 { color: var(--white); }

.section-lede {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 48px;
  color: var(--gray-400);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.stat-card { text-align: center; }

.stat-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--red);
}

.stat-label { font-size: 0.85rem; color: var(--gray-400); }

/* Solutions */
.solutions { padding: 80px 0; background: var(--gray-100); }

.solution-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  text-align: center;
}

.solution-card img { margin: 0 auto 16px; }

/* Spotlights */
.spotlights { padding: 80px 0; }

.spotlight-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.spotlight-card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid #ececec;
}

.spotlight-metric { font-size: 2.2rem; font-weight: 800; color: var(--red); margin: 0 0 8px; }

.spotlight-card blockquote { margin: 0 0 16px; font-style: italic; color: var(--gray-900); }

.spotlight-name { font-size: 0.85rem; font-weight: 700; color: var(--gray-900); margin: 0; }

/* Learn */
.learn { padding: 80px 0; background: var(--gray-100); }

.learn-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.learn-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
}

/* CTA */
.cta { padding: 80px 0; background: var(--red); color: var(--white); text-align: center; }

.cta h2 { color: var(--white); }

.cta-inner .hero-actions { justify-content: center; }
.cta-inner .btn-primary { background: var(--black); }
.cta-inner .btn-primary:hover { background: var(--gray-900); }

/* API test runner */
.api-tests { padding: 80px 0; }

.api-test-panel {
  max-width: 640px;
  margin: 40px auto 0;
  text-align: center;
}

.api-test-countdown {
  margin-top: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.api-test-output {
  margin-top: 16px;
  max-height: 280px;
  overflow-y: auto;
  text-align: left;
  border: 1px solid #ececec;
  border-radius: var(--radius);
  padding: 12px 16px;
}

.api-test-row {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  padding: 4px 0;
  border-bottom: 1px solid #f2f2f2;
}
.api-test-row:last-child { border-bottom: none; }
.api-test-row.pass { color: #1a7f37; }
.api-test-row.fail { color: var(--red); }

/* Footer */
.site-footer { background: var(--black); color: var(--gray-400); padding: 64px 0 32px; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  padding-bottom: 40px;
  border-bottom: 1px solid #2a2a2a;
}

.footer-col h4 { color: var(--white); font-size: 0.9rem; margin: 0 0 16px; }

.footer-col ul { list-style: none; margin: 0; padding: 0; }

.footer-col li { margin-bottom: 10px; }

.footer-col a { font-size: 0.88rem; color: var(--gray-400); }
.footer-col a:hover { color: var(--white); }

.footer-compare {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 24px 24px;
  font-size: 0.85rem;
}
.footer-compare a:hover { color: var(--white); }

.footer-legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8rem;
  padding-top: 8px;
}

.footer-legal-links { display: flex; gap: 16px; }
.footer-legal-links a:hover { color: var(--white); }

.footer-social { display: flex; gap: 14px; }
.footer-social a {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid #333;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}
.footer-social a:hover { border-color: var(--white); color: var(--white); }

/* Responsive */
@media (max-width: 1080px) {
  .pillar-grid, .solution-grid, .spotlight-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
  .learn-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; }

  .nav-toggle { display: flex; }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 24px;
    border-bottom: 1px solid #eaeaea;
    display: none;
  }
  .main-nav.open { display: flex; }

  .main-nav ul {
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
  }
  .main-nav ul a { display: block; padding: 10px 0; }

  .nav-actions { flex-direction: column; align-items: stretch; }
  .nav-actions .btn { text-align: center; }
}

@media (max-width: 640px) {
  .pillar-grid, .solution-grid, .spotlight-grid, .stat-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}