/* Driver Sleep Detector — landing page */

:root {
  --bg: #0c1220;
  --bg-elevated: #121a2b;
  --bg-card: #182236;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8edf5;
  --text-muted: #94a3b8;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.15);
  --accent-2: #38bdf8;
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #0c1220;
  font-weight: 600;
  z-index: 100;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 18, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--bg-card);
}

.logo-text {
  display: inline-block;
}

.logo:hover {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #ea580c);
  color: #0c1220;
  box-shadow: 0 4px 24px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg-card);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Hero */

.hero {
  position: relative;
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 8vw, 6rem);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  inset: -40% -20% auto;
  height: 70%;
  background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.18), transparent 55%),
    radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.12), transparent 45%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.5vw, 2.85rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 1.75rem;
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 36ch;
}

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

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.hero-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Phone mock */

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-illustration {
  width: min(520px, 100%);
  height: auto;
  border-radius: 22px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(24, 34, 54, 0.35);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
}

.phone-frame {
  width: min(280px, 100%);
  aspect-ratio: 9 / 18;
  border-radius: 28px;
  padding: 10px;
  background: linear-gradient(160deg, #1e293b, #0f172a);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.phone-screen {
  height: 100%;
  border-radius: 20px;
  background: linear-gradient(180deg, #0f172a 0%, #1e3a5f 100%);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.status-pill {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.2);
  color: #86efac;
}

.mock-face {
  flex: 1;
  width: 72%;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, rgba(255, 255, 255, 0.12), transparent 50%),
    radial-gradient(circle at 60% 40%, rgba(56, 189, 248, 0.15), transparent 45%),
    #1e293b;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.alert-banner {
  width: 100%;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.5rem;
  border-radius: 8px;
  background: rgba(220, 38, 38, 0.35);
  color: #fecaca;
  border: 1px solid rgba(248, 113, 113, 0.4);
}

/* Sections */

.section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.section-alt {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-intro {
  margin: 0 0 2rem;
  color: var(--text-muted);
  max-width: 52ch;
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  margin: 0;
  padding: 1.35rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.25);
  transform: translateY(-2px);
}

.feature-icon {
  display: block;
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Pricing */

.pricing-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.price-card {
  margin: 0;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.price-card-highlight {
  border-color: rgba(245, 158, 11, 0.45);
  background: linear-gradient(160deg, rgba(245, 158, 11, 0.08), var(--bg-card));
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.price-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
}

.price-tag {
  margin: 0 0 0.75rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.price-tag span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.price-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.price-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.price-card li {
  margin-bottom: 0.35rem;
}

.pricing-foot {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Safety */

.safety-block {
  max-width: 720px;
}

.safety-block p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

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

/* Footer */

.site-footer {
  padding: 2.5rem 0 1.5rem;
  border-top: 1px solid var(--border);
  background: #080c14;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.footer-tag {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 280px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-start;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.footer-bottom {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}