/* Trackster website — plain CSS, no frameworks, no external dependencies.
   Mobile-first. System font stack for reliability. */

:root {
  --green: #1e7a34;
  --green-dark: #145a26;
  --green-soft: #e8f3ea;
  --ink: #1b1e1b;
  --muted: #5a625a;
  --bg: #ffffff;
  --bg-soft: #f5f8f5;
  --border: #dfe7df;
  --radius: 12px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

a { color: var(--green-dark); }
a:hover { text-decoration-thickness: 2px; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--green-dark);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.brand span { color: var(--ink); font-weight: 400; font-size: 0.95rem; }

.nav a {
  margin-left: 18px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}
.nav a:hover { color: var(--green-dark); }

/* ---------- Hero ---------- */

.hero {
  background: linear-gradient(180deg, var(--green-soft), var(--bg));
  padding: 56px 0 48px;
}

.hero-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}
@media (min-width: 820px) {
  .hero-grid { grid-template-columns: 1.2fr 0.8fr; }
}

.hero h1 {
  font-size: 2.1rem;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0 0 16px;
}
@media (min-width: 820px) { .hero h1 { font-size: 2.7rem; } }

.hero p.lede {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 24px;
  max-width: 34em;
}

.beta-note {
  display: inline-block;
  background: #fff8e1;
  border: 1px solid #f0dfa0;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0 0; }

.btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-size: 1.05rem;
}
.btn:hover { background: var(--green-dark); color: #fff; }
.btn.secondary {
  background: #fff;
  color: var(--green-dark);
  border: 2px solid var(--green);
}

/* Pure-CSS phone mockup — no images needed */
.phone {
  width: 240px;
  margin: 0 auto;
  background: #111;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 18px 40px rgba(20, 90, 38, 0.25);
}
.phone-screen {
  background: #fff;
  border-radius: 26px;
  overflow: hidden;
  font-size: 12px;
}
.phone-bar {
  background: var(--green-dark);
  color: #fff;
  padding: 10px 12px;
  font-weight: 700;
}
.phone-row {
  padding: 10px 12px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.phone-row .t { font-weight: 600; }
.phone-row .s { color: var(--green-dark); font-size: 11px; }
.phone-row:last-child { border-bottom: none; }
.phone-tag {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 10px;
}

/* ---------- Sections ---------- */

section.block { padding: 48px 0; }
section.block.alt { background: var(--bg-soft); }

h2 {
  font-size: 1.7rem;
  letter-spacing: -0.3px;
  margin: 0 0 12px;
  line-height: 1.25;
}
.section-sub {
  color: var(--muted);
  max-width: 44em;
  margin: 0 0 28px;
  font-size: 1.05rem;
}

/* Feature cards */
.cards {
  display: grid;
  gap: 16px;
}
@media (min-width: 700px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .cards { grid-template-columns: 1fr 1fr 1fr; } }

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

/* Pricing */
.plans {
  display: grid;
  gap: 16px;
}
@media (min-width: 820px) { .plans { grid-template-columns: repeat(4, 1fr); } }

.plan {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.plan.featured {
  border: 2px solid var(--green);
  box-shadow: 0 8px 24px rgba(20, 90, 38, 0.12);
}
.plan h3 { margin: 0 0 4px; }
.plan .price { font-size: 1.8rem; font-weight: 800; margin: 8px 0 2px; }
.plan .price small { font-size: 0.95rem; font-weight: 400; color: var(--muted); }
.plan p { color: var(--muted); font-size: 0.95rem; margin: 0 0 12px; }
.plan ul { margin: 0 0 16px; padding-left: 20px; color: var(--muted); font-size: 0.95rem; }
.plan .btn { margin-top: auto; text-align: center; font-size: 1rem; padding: 12px 18px; }

.fineprint { color: var(--muted); font-size: 0.9rem; margin-top: 18px; }

/* Story */
.story {
  max-width: 44em;
}
.story p { font-size: 1.05rem; }

/* FAQ */
.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 10px;
  background: #fff;
}
.faq summary { font-weight: 700; cursor: pointer; }
.faq p { color: var(--muted); margin: 8px 0 0; }

/* Legal pages */
.legal { padding: 40px 0 64px; }
.legal .wrap { max-width: 800px; }
.legal h1 { font-size: 2rem; letter-spacing: -0.4px; }
.legal h2 { font-size: 1.35rem; margin-top: 36px; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.related-box {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  margin: 20px 0 30px;
  font-size: 0.97rem;
}

/* Support */
.support-list { list-style: none; padding: 0; margin: 0 0 24px; }
.support-list li {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 12px;
  background: #fff;
}
.support-list strong { display: block; margin-bottom: 4px; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
}
.site-footer nav a { margin-right: 18px; color: var(--muted); text-decoration: none; }
.site-footer nav a:hover { color: var(--green-dark); }