:root {
  --bg: #f4f6f5; --surface: #fff; --text: #17231e; --muted: #5d6b65; --border: #e2e8e5;
  --accent: #2f7a5b; --accent-strong: #235d45; --accent-soft: #e5f2ec; --warn-soft: #fdf2dc; --warn: #9a5b00;
  --info-soft: #e7eefc; --info: #2459c2;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1513; --surface: #17201c; --text: #e8efeb; --muted: #a3b2ab; --border: #2a3631; --accent: #4fb388;
    --accent-strong: #6fcaa2; --accent-soft: #1d3329; --warn-soft: #362813; --warn: #f2b35a; --info-soft: #1b2640; --info: #8fb2ff; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--accent-strong); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .6rem; }
main { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.nav { max-width: 1080px; margin: 0 auto; padding: 18px 20px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.dot { width: 30px; height: 30px; border-radius: 9px; background: var(--accent); color: #fff; display: grid; place-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 18px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); text-decoration: none; font-weight: 700; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.big { min-height: 52px; padding: 12px 24px; font-size: 1.05rem; }
.hero { display: grid; gap: 40px; align-items: center; padding: 40px 0 64px; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.15fr .85fr; padding-top: 64px; } }
.eyebrow { color: var(--accent-strong); font-weight: 700; font-size: .9rem; margin: 0 0 10px; }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 34em; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 12px; }
.fine { color: var(--muted); font-size: .9rem; }
.hero-card { display: flex; justify-content: center; }
.mock { width: 100%; max-width: 340px; background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 20px;
  box-shadow: 0 20px 50px rgba(20, 60, 45, .14); transform: rotate(1.5deg); }
.mock-top { display: flex; gap: 6px; justify-content: flex-end; }
.badge { padding: 2px 9px; border-radius: 999px; font-size: .74rem; font-weight: 700; }
.badge.viewed { background: var(--warn-soft); color: var(--warn); }
.badge.issued { background: var(--info-soft); color: var(--info); }
.mock-name { font-weight: 800; font-size: 1.2rem; margin-top: 8px; }
.mock-sub { color: var(--muted); font-size: .9rem; margin-bottom: 14px; }
.mock-line, .mock-total { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid var(--border); font-size: .95rem; }
.mock-total { font-weight: 800; font-size: 1.05rem; }
.mock-btn { margin-top: 14px; background: var(--accent); color: #fff; border-radius: 12px; text-align: center; padding: 12px; font-weight: 700; }
.features { padding: 40px 0; }
.features h2, .how h2, .faq h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); max-width: 22em; }
.grid { display: grid; gap: 16px; margin-top: 24px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .grid { grid-template-columns: 1fr 1fr 1fr; } }
.grid article { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 20px; }
.grid p { color: var(--muted); margin: 0; }
.ico { font-size: 1.6rem; margin-bottom: 8px; }
.how { padding: 40px 0; }
.how ol { padding-left: 1.2em; font-size: 1.1rem; max-width: 40em; }
.how li { margin: 10px 0; }
.faq { padding: 40px 0 64px; max-width: 760px; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 14px 18px; margin: 10px 0; }
summary { font-weight: 700; cursor: pointer; }
details p { color: var(--muted); margin: 10px 0 0; }
.footer { max-width: 1080px; margin: 0 auto; padding: 24px 20px 40px; display: flex; gap: 18px; color: var(--muted); border-top: 1px solid var(--border); }