:root {
  --bg: #0f1420;
  --bg-alt: #131a2a;
  --panel-bg: #171e2e;
  --panel-border: #2a3448;
  --text: #e7ecf5;
  --text-dim: #9aa7bd;
  --accent: #4da3ff;
  --radius: 12px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fb;
    --bg-alt: #ffffff;
    --panel-bg: #ffffff;
    --panel-border: #dde3ee;
    --text: #1a2233;
    --text-dim: #5b6980;
  }
}

* {
  box-sizing: border-box;
}

a[href],
button:not(:disabled),
[role="button"] {
  cursor: pointer;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.landing-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1.25rem 1.5rem;
  max-width: 64rem;
  margin: 0 auto;
}

.landing-header img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.landing-header .site-name {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero p.lede {
  color: var(--text-dim);
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 38rem;
  margin: 0 auto 1.75rem;
}

.cta-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #06121f;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.85rem 1.9rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 8px 24px -8px rgba(77, 163, 255, 0.55);
}

.primary-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px -6px rgba(77, 163, 255, 0.65);
}

.cta-note {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.hero-shot {
  max-width: 34rem;
  margin: 2.75rem auto 0;
}

.mock-window {
  background: var(--bg-alt);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.5);
  padding: 1.5rem;
  display: flex;
  gap: 1.25rem;
  align-items: center;
  justify-content: center;
  text-align: left;
}

.mock-card {
  flex: 1;
  min-width: 0;
}

.mock-card-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.mock-logo {
  flex-shrink: 0;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 8px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.mock-carrier {
  font-weight: 600;
  font-size: 0.95rem;
}

.mock-flight {
  color: var(--text-dim);
  font-size: 0.78rem;
}

.mock-model {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 0.9rem;
}

.mock-stats {
  display: flex;
  gap: 1.1rem;
}

.mock-stat {
  display: flex;
  flex-direction: column;
}

.mock-stat span {
  font-weight: 700;
  font-size: 1rem;
}

.mock-stat small {
  color: var(--text-dim);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.mock-radar {
  flex-shrink: 0;
  width: 7.5rem;
  height: 7.5rem;
}

.mock-radar svg {
  width: 100%;
  height: 100%;
}

.mock-radar .ring {
  fill: none;
  stroke: var(--panel-border);
  stroke-width: 1;
}

.mock-radar .blip {
  fill: var(--text-dim);
}

.mock-radar .blip-accent {
  fill: var(--accent);
}

@media (max-width: 30rem) {
  .mock-window {
    flex-direction: column;
    align-items: stretch;
  }

  .mock-radar {
    margin: 0 auto;
  }
}

.features {
  max-width: 64rem;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

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

.feature-card .feature-icon {
  font-size: 1.6rem;
  margin-bottom: 0.6rem;
  display: block;
}

.feature-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.how-it-works {
  background: var(--bg-alt);
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
  padding: 3rem 1.5rem;
}

.how-it-works-inner {
  max-width: 40rem;
  margin: 0 auto;
}

.how-it-works h2 {
  text-align: center;
  margin: 0 0 1.75rem;
  font-size: 1.5rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.steps li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.steps strong {
  display: block;
}

.steps span {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.final-cta {
  text-align: center;
  padding: 3rem 1.5rem;
}

.final-cta p {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.landing-footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}

.landing-footer a {
  color: var(--text-dim);
}