:root {
    --bg: #ffffff; --bg-alt: #f4f6fa; --text: #14171f; --muted: #5d6575; --line: #e3e7ef;
    --primary: #1f5eff; --primary-ink: #ffffff; --card: #ffffff; --ok: #1a9f5b;
    --error-bg: #fdecec; --error-ink: #9b1c1c; --warn-bg: #fff6dc; --warn-ink: #7a5300;
    --radius: 12px; --shadow: 0 10px 30px rgba(20, 30, 60, .08);
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1218; --bg-alt: #151a23; --text: #e8ebf2; --muted: #9aa3b5; --line: #262d3a;
        --primary: #5b8bff; --card: #171c26; --error-bg: #3a1717; --error-ink: #ffb4b4;
        --warn-bg: #3a2f10; --warn-ink: #ffd98a; --shadow: none;
    }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font: 16px/1.55 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--bg-alt); padding: 1px 6px; border-radius: 6px; font-size: .92em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; font-size: 15px; text-align: center; }
.btn:hover { text-decoration: none; filter: brightness(.97); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 8px 14px; font-size: 14px; }

.topbar { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.topbar-in { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo-mark { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: #fff; font-weight: 800; }
.topnav { display: flex; gap: 22px; margin-left: auto; }
.topnav a { color: var(--muted); font-weight: 500; }

.hero { padding: 72px 0 56px; background: radial-gradient(1200px 400px at 80% -10%, color-mix(in srgb, var(--primary) 14%, transparent), transparent); }
.hero-in { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: 13px; margin-bottom: 12px; }
h1 { font-size: 44px; line-height: 1.12; letter-spacing: -.02em; margin-bottom: 18px; }
h2 { font-size: 30px; letter-spacing: -.01em; margin-bottom: 24px; }
h3 { font-size: 18px; margin-bottom: 8px; }
.lead { font-size: 19px; color: var(--muted); margin-bottom: 28px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.hero-card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); padding: 20px; display: grid; gap: 10px; }
.mock-search { display: flex; justify-content: space-between; padding: 12px 14px; border: 2px solid var(--primary); border-radius: 10px; }
.mock-search span { color: var(--muted); }
.mock-row { display: flex; justify-content: space-between; padding: 10px 14px; background: var(--bg-alt); border-radius: 8px; font-size: 15px; }
.mock-status { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; padding-top: 4px; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--ok); }

.section { padding: 72px 0; }
.section.alt { background: var(--bg-alt); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature p { color: var(--muted); font-size: 15px; }
.steps { display: grid; gap: 14px; padding-left: 22px; max-width: 760px; font-size: 17px; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 8px; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 16px; }
.plan-featured { border: 2px solid var(--primary); box-shadow: var(--shadow); }
.price { font-size: 34px; font-weight: 800; }
.price span { font-size: 15px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; display: grid; gap: 8px; flex: 1; }
.plan li::before { content: '✓'; color: var(--ok); font-weight: 700; margin-right: 8px; }

details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; }
details p { margin-top: 10px; color: var(--muted); }

.cta { text-align: center; }
.cta-in { display: grid; justify-items: center; gap: 8px; }

.form { display: grid; gap: 16px; margin-top: 24px; }
.form label { display: grid; gap: 6px; font-weight: 500; font-size: 15px; }
.form input, .form select, .form textarea { font: inherit; padding: 11px 13px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--text); width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid color-mix(in srgb, var(--primary) 40%, transparent); border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--muted); }
.form .check input { width: auto; margin-top: 5px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.alert { padding: 12px 16px; border-radius: 10px; margin: 16px 0; }
.alert-error { background: var(--error-bg); color: var(--error-ink); }
.alert-warn { background: var(--warn-bg); color: var(--warn-ink); }

.legal h2 { font-size: 20px; margin: 28px 0 10px; }
.legal p { margin-bottom: 10px; }

.footer { border-top: 1px solid var(--line); padding: 32px 0; }
.footer-in { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; font-size: 14px; }

@media (max-width: 860px) {
    .topnav { display: none; }
    .topbar-in { justify-content: space-between; }
    .hero { padding: 40px 0; }
    .hero-in { grid-template-columns: 1fr; gap: 28px; }
    h1 { font-size: 32px; }
    h2 { font-size: 24px; }
    .grid3 { grid-template-columns: 1fr; }
    .section { padding: 48px 0; }
    .form-row { grid-template-columns: 1fr; }
}