:root {
  --bg: #0f0f0f;
  --panel: #171717;
  --panel-strong: #1d1d1d;
  --text: #f5f5f5;
  --muted: #b6b6b6;
  --accent: #ff9500;
  --accent-blue: #007aff;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  background: radial-gradient(circle at top, #1b1b1b 0%, var(--bg) 45%);
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(255, 149, 0, 0.12), transparent 28%),
    linear-gradient(180deg, #121212 0%, #0f0f0f 100%);
  font-family: "Avenir Next", "Helvetica Neue", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.page-shell,
.policy-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.page-shell {
  padding: 48px 0 72px;
}

.hero {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: 1.15fr 0.85fr;
  min-height: calc(100vh - 180px);
}

.logo {
  width: 104px;
  height: 104px;
  border-radius: 24px;
  display: block;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.eyebrow,
.mini-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.eyebrow {
  font-size: 0.8rem;
}

.hero h1,
.section-heading h2,
.policy-card h1 {
  margin: 12px 0 18px;
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.lead,
.section-copy,
.policy-card p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 640px;
}

.hero-actions,
.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 32px;
}

.button,
.back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background 140ms ease;
}

.button:hover,
.back-link:hover,
.footer-links a:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #101010;
  border-color: transparent;
  font-weight: 700;
}

.button-disabled {
  background: #4b4b4b;
  border-color: #4b4b4b;
  color: rgba(255, 255, 255, 0.72);
  pointer-events: none;
  cursor: default;
  box-shadow: none;
}

.button-secondary,
.back-link {
  background: rgba(255, 255, 255, 0.03);
}

.demo-card,
.info-card,
.policy-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.demo-card {
  padding: 18px;
  min-height: 460px;
}

.mode-pill {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 149, 0, 0.14);
  color: var(--accent);
  font-size: 0.88rem;
}

.demo-video {
  display: block;
  width: 100%;
  aspect-ratio: 1206 / 1084;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0a0a0a;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.mini-label {
  font-size: 0.72rem;
}

.content-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 24px 0 72px;
}

.info-card,
.policy-card {
  padding: 28px;
}

.info-card h2,
.policy-card h2 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
}

.feature-section {
  display: grid;
  gap: 28px;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: start;
  padding: 36px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
}

.feature-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.feature-list li + li {
  margin-top: 12px;
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 40px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 24px 0 0;
}

.footer-links {
  margin-top: 24px;
}

.footer-links a {
  color: var(--text);
  text-decoration: none;
}

.footer-link-disabled {
  color: rgba(245, 245, 245, 0.45);
}

.policy-shell {
  padding: 32px 0 72px;
}

.back-link {
  margin: 8px 0 24px;
  color: var(--text);
}

.policy-card {
  max-width: 820px;
}

.policy-card h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
}

.policy-card p,
.policy-card a {
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero,
  .content-grid,
  .feature-section,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 12px;
  }

  .demo-card {
    min-height: 360px;
  }

  .site-footer {
    display: block;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding-top: 28px;
  }

  .hero h1,
  .section-heading h2,
  .policy-card h1 {
    line-height: 1;
  }

  .demo-card,
  .feature-section,
  .info-card,
  .policy-card {
    border-radius: 22px;
  }
}