html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at top left, rgba(217, 31, 60, 0.18), transparent 28%), var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.6;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
}

.site-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.surface,
.panel,
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), transparent), var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel,
.card {
  padding: 16px;
}

.panel-alt {
  background: linear-gradient(135deg, rgba(217,31,60,0.2), rgba(255,255,255,0.03));
}

.site-shell {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(11, 13, 18, 0.8);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.site-brand {
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}

.site-nav {
  display: flex;
  gap: 16px;
  color: var(--muted);
}

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

.site-footer {
  margin-top: auto;
  padding: 12px 0 16px;
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
}

.hero-panel {
  padding: 24px;
  margin-top: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-panel h1,
.hero-panel h2,
.section-title {
  margin: 0 0 8px;
  line-height: 1.1;
}

.hero-panel h1 {
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
}

.text-muted {
  color: var(--muted);
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 600;
  transition: transform 160ms ease, background 160ms ease;
}

.btn-primary {
  background: var(--primary);
  color: var(--text);
  border: 1px solid transparent;
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.stats-grid,
.feature-grid,
.metric-grid,
.content-grid {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

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

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

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.content-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.metric-value {
  font-size: 1.35rem;
  font-weight: 700;
}

.feature-list,
.check-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.feature-list li,
.check-list li {
  margin-bottom: 8px;
}

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

  .hero-panel {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 20px, var(--container));
  }

  .site-header__inner {
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-panel {
    padding: 22px;
  }
}