:root {
  --bg: #f6faf6;
  --surface: #ffffff;
  --text: #15241a;
  --muted: #5b6b60;
  --accent: #2e7d32;
  --accent-ink: #ffffff;
  --accent-soft: #e3f2e5;
  --border: #d9e3db;
  --no: #2e7d32;
  --yes: #c62828;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1711;
    --surface: #182219;
    --text: #e8f0e9;
    --muted: #a3b3a7;
    --accent: #66bb6a;
    --accent-ink: #0b1a0d;
    --accent-soft: #1e3322;
    --border: #2a3a2d;
    --no: #66bb6a;
    --yes: #ef5350;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--accent);
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

.mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

nav a {
  margin-left: 18px;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 40px 0 48px;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 24px;
  font-size: 1.15rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  filter: brightness(1.06);
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Decorative phone showing the check-in screen. */
.phone {
  justify-self: center;
  width: 280px;
  padding: 14px;
  border-radius: 36px;
  background: #101410;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.screen {
  padding: 28px 20px 24px;
  border-radius: 24px;
  background: var(--surface);
  color: var(--text);
}

.streak-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.streak-number {
  margin: 4px 0 0;
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

.streak-sub {
  margin-bottom: 20px;
  color: var(--muted);
}

.saved {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--accent-soft);
  margin-bottom: 22px;
}

.saved span {
  font-size: 0.8rem;
  color: var(--muted);
}

.saved strong {
  font-size: 1.6rem;
  color: var(--accent);
}

.q {
  margin-bottom: 10px;
  font-weight: 700;
}

.answers {
  display: flex;
  gap: 10px;
}

.answers span {
  flex: 1;
  padding: 12px 0;
  border-radius: 12px;
  text-align: center;
  font-weight: 700;
  color: #fff;
}

.answers .no {
  background: var(--no);
}

.answers .yes {
  background: var(--yes);
}

section h2 {
  margin: 40px 0 8px;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}

section > p {
  max-width: 640px;
  margin-top: 0;
  color: var(--muted);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 16px 0 0;
}

.card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

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

.pro-list {
  columns: 2;
  gap: 32px;
  margin: 12px 0 0;
  padding-left: 20px;
}

.pro-list li {
  break-inside: avoid;
  margin-bottom: 8px;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 56px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

footer a {
  color: var(--muted);
}

/* Long-form pages (privacy policy). */
.prose {
  max-width: 720px;
  padding-bottom: 24px;
}

.prose h1 {
  margin: 24px 0 4px;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.prose h2 {
  margin: 32px 0 8px;
  font-size: 1.3rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.prose th,
.prose td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.prose .summary {
  padding: 16px 20px;
  border-radius: 16px;
  background: var(--accent-soft);
}

.prose .summary p {
  margin: 0;
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 16px;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .pro-list {
    columns: 1;
  }

  nav a {
    margin-left: 12px;
  }
}