/* Trang lộ trình: làm quen xe / DAT / tốt nghiệp */
:root {
  --lt-red: #c75b4e;
  --lt-red-d: #b14a3f;
  --lt-gold: #d4b45a;
  --lt-paper: #fffdf8;
  --lt-card: #fff;
  --lt-ink: #1c1917;
  --lt-muted: #6b6258;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--lt-paper); color: var(--lt-ink); }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  min-height: 100dvh;
  padding-bottom: calc(72px + var(--safe-b));
  -webkit-font-smoothing: antialiased;
}
.lt-top {
  position: sticky; top: 0; z-index: 30;
  background: linear-gradient(180deg, #d9897e, #c75b4e);
  color: #fff;
  padding: calc(10px + var(--safe-t)) 12px 12px;
  border-bottom: 2px solid var(--lt-gold);
}
.lt-top-inner {
  max-width: 640px; margin: 0 auto;
  display: flex; align-items: center; gap: 10px;
}
.lt-back {
  width: 40px; height: 40px; border-radius: 12px;
  background: rgba(255,255,255,.2); color: #fff;
  display: grid; place-items: center; text-decoration: none; font-size: 18px;
}
.lt-top h1 { font-size: 16px; font-weight: 800; line-height: 1.25; }
.lt-top p { font-size: 12px; opacity: .92; margin-top: 2px; }
.lt-wrap { max-width: 640px; margin: 0 auto; padding: 16px 14px 24px; }
.lt-lead {
  background: #fff; border: 1px solid rgba(199,91,78,.16);
  border-radius: 14px; padding: 14px 16px; margin-bottom: 14px;
  box-shadow: 0 1px 0 rgba(212,180,90,.28);
}
.lt-lead p { font-size: 14px; line-height: 1.55; color: #4a433c; }
.lt-card {
  background: #fff; border: 1px solid rgba(199,91,78,.14);
  border-radius: 14px; padding: 14px 16px; margin-bottom: 12px;
}
.lt-card h2 { font-size: 15px; color: var(--lt-red-d); margin-bottom: 8px; }
.lt-card p, .lt-card li { font-size: 14px; line-height: 1.55; color: #3f3a35; }
.lt-card ol, .lt-card ul { padding-left: 18px; }
.lt-card li { margin: 4px 0; }
.lt-note {
  background: #fff8e8; border: 1px solid #ead9a2;
  border-radius: 12px; padding: 12px 14px; font-size: 13px; color: #6b5340;
  margin-bottom: 12px;
}
.lt-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.lt-links a {
  display: inline-block; padding: 8px 12px; border-radius: 999px;
  background: #fff6f4; border: 1px solid #e7c9c4;
  color: var(--lt-red-d); font-size: 13px; font-weight: 700; text-decoration: none;
}
table.lt-tb { width: 100%; border-collapse: collapse; font-size: 13px; }
table.lt-tb th, table.lt-tb td { border-bottom: 1px solid #f0e6de; padding: 8px 6px; text-align: left; }
table.lt-tb th { color: var(--lt-red-d); font-size: 12px; }
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  height: calc(60px + var(--safe-b)); padding-bottom: var(--safe-b);
  background: #fff; border-top: 2px solid var(--lt-gold);
}
.bottom-nav-inner {
  display: grid; grid-template-columns: repeat(5, 1fr);
  max-width: 600px; margin: 0 auto; height: 60px;
}
.nav-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; color: #7a7168; text-decoration: none; font-size: 10px; font-weight: 600;
}
.nav-item.active { color: var(--lt-red); }
.nav-icon { font-size: 18px; }