:root {
  --bg: #09111a;
  --surface: #0d1a28;
  --card: #102033;
  --text: #edf5ff;
  --muted: #9fb3c8;
  --accent: #7dd3fc;
  --accent-dim: rgba(125, 211, 252, 0.25);
  --border: #1f3448;
  --gradient-midnight: linear-gradient(160deg, #09111a 0%, #1a2744 100%);
  --gradient-terminal: linear-gradient(160deg, #0d1117 0%, #161b22 100%);
  --font-ui: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1120px;
  --content-width: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(9, 17, 26, 0.85);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.brand:hover {
  text-decoration: none;
}

.brand__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9375rem;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--accent);
  color: #09111a;
}

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

.hero {
  padding: 4rem 0 3rem;
}

.hero__grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 36rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.phone-preview {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--gradient-terminal);
  border: 1px solid var(--border);
  padding: 1.5rem;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.phone-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(125, 211, 252, 0.08) 1px, transparent 0);
  background-size: 20px 20px;
  pointer-events: none;
}

.quote-card {
  position: relative;
  z-index: 1;
}

.quote-card__text {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 1rem;
}

.quote-card__author {
  color: rgba(237, 245, 255, 0.72);
  font-size: 1rem;
  margin: 0;
}

.quote-card__hint {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.section {
  padding: 4rem 0;
}

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

.section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.75rem;
}

.section__lead {
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 2.5rem;
}

.features-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 700px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.feature-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
}

.feature-card__desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

.premium-box {
  background: var(--gradient-midnight);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.premium-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.premium-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--muted);
}

.premium-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(7, 12px);
  gap: 3px;
  margin-top: 1.5rem;
}

.heatmap__cell {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--accent-dim);
}

.heatmap__cell--1 { opacity: 0.25; }
.heatmap__cell--2 { opacity: 0.5; }
.heatmap__cell--3 { opacity: 0.75; }
.heatmap__cell--4 { opacity: 1; }

.cta-band {
  text-align: center;
  padding: 4rem 0 5rem;
}

.cta-band__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0 0 1rem;
}

.cta-band__text {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.site-footer__links {
  display: flex;
  gap: 1.25rem;
}

.legal-page {
  padding: 3rem 0 5rem;
}

.legal-page h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0 0 0.5rem;
}

.legal-page__updated {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin: 0 0 2.5rem;
}

.legal-section {
  margin-bottom: 2rem;
}

.legal-section h2 {
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
}

.legal-section p {
  margin: 0;
  color: var(--muted);
}