:root {
  --blue: #1769ff;
  --navy: #0b1c31;
  --ink: #142238;
  --muted: #6a7890;
  --line: #dde5ef;
  --soft: #f5f8fc;
  --teal: #159e8b;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: white; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
.container { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.94); border-bottom: 1px solid #edf1f6; backdrop-filter: blur(10px); }
.nav .container { height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; }
.brand-mark { width: 31px; height: 31px; border-radius: 9px; display: grid; place-items: center; background: var(--blue); color: white; box-shadow: 0 7px 18px rgba(23,105,255,.25); }
.nav-links { display: flex; gap: 28px; color: #40506a; font-size: 14px; font-weight: 700; }
.nav-actions { display: flex; gap: 10px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; border-radius: 12px; padding: 0 18px; font-weight: 800; border: 1px solid var(--line); background: white; cursor: pointer; }
.btn.primary { border-color: var(--blue); background: var(--blue); color: white; box-shadow: 0 8px 18px rgba(23,105,255,.2); }
.hero { padding: 86px 0 70px; background: radial-gradient(circle at 75% 10%, #dfeaff 0, transparent 35%), linear-gradient(180deg, #fff, #f7faff); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.kicker { display: inline-flex; gap: 8px; align-items: center; color: #0e7e70; background: #e8faf5; border: 1px solid #c7ece3; padding: 7px 10px; border-radius: 999px; font-size: 12px; font-weight: 900; }
h1 { font-size: clamp(44px, 6vw, 72px); line-height: .98; letter-spacing: -.045em; margin: 18px 0; max-width: 720px; }
.lead { max-width: 650px; color: var(--muted); font-size: 18px; line-height: 1.6; }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; }
.feature-card { border: 1px solid var(--line); border-radius: 24px; padding: 18px; background: white; box-shadow: 0 24px 60px rgba(17,42,76,.12); }
.mock { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.mock-head { padding: 14px 16px; display: flex; justify-content: space-between; background: #f8fbff; border-bottom: 1px solid var(--line); font-weight: 900; }
.score { background: #e8faf5; color: #0f806f; border-radius: 999px; padding: 5px 12px; }
.mock-row { padding: 12px 16px; display: flex; justify-content: space-between; gap: 20px; border-bottom: 1px solid #edf2f7; font-size: 14px; }
.mock-row span:first-child { color: var(--muted); }
.mock-row b { color: var(--teal); }
.section { padding: 82px 0; }
.section h2 { font-size: 38px; margin: 0 0 12px; letter-spacing: -.03em; }
.section-intro { color: var(--muted); max-width: 700px; line-height: 1.6; }
.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 36px; }
.card { border: 1px solid var(--line); border-radius: 18px; padding: 24px; background: white; }
.card h3 { margin: 14px 0 8px; }
.card p { color: var(--muted); line-height: 1.55; }
.icon { width: 42px; height: 42px; border-radius: 12px; background: #edf4ff; color: var(--blue); display: grid; place-items: center; font-weight: 900; }
.footer { background: var(--navy); color: #dce6f3; padding: 44px 0; }
.footer p { color: #91a4bd; max-width: 700px; font-size: 13px; line-height: 1.6; }
.auth-page { background: #f5f8fc; min-height: 100vh; }
.auth-wrap { width: min(1060px, calc(100% - 32px)); margin: 32px auto 70px; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; background: white; box-shadow: 0 24px 70px rgba(20,43,75,.12); }
.auth-aside { background: linear-gradient(160deg, #123966, #081a2f); color: white; padding: 54px 46px; min-height: 570px; display: flex; flex-direction: column; justify-content: center; }
.auth-aside h2 { font-size: 38px; line-height: 1.06; margin: 16px 0; max-width: 420px; }
.auth-aside ul { padding-left: 20px; color: #d3dfed; line-height: 1.9; }
.auth-form { padding: 50px 46px; }
.auth-form h2 { margin: 0; font-size: 28px; }
.auth-form .sub { color: var(--muted); margin: 8px 0 26px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field.full { grid-column: 1/-1; }
.field label { display: block; font-size: 12px; font-weight: 800; margin-bottom: 6px; }
.field input, .field select { width: 100%; border: 1px solid #cbd7e5; border-radius: 10px; padding: 12px 13px; outline: 0; background: white; }
.field input:focus, .field select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(23,105,255,.1); }
.form-btn { width: 100%; min-height: 46px; border: 0; border-radius: 11px; background: var(--blue); color: white; font-weight: 900; cursor: pointer; }
.form-note { color: var(--muted); font-size: 11px; line-height: 1.5; margin-top: 10px; }
.alert { display: none; margin: 12px 0; border-radius: 10px; padding: 10px 12px; font-size: 12px; }
.alert.show { display: block; }
.alert.error { background: #fff0ef; color: #a64139; border: 1px solid #f3d0cc; }
.alert.success { background: #e9faf5; color: #0f806f; border: 1px solid #c5eadf; }
.pricing { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 34px; }
.price-card { border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
.price-card.featured { border-color: #7aa7ff; box-shadow: 0 18px 50px rgba(23,105,255,.12); }
.price { font-size: 40px; font-weight: 900; margin: 14px 0; }
.price-card ul { padding-left: 20px; color: var(--muted); line-height: 1.9; }
@media (max-width: 820px) {
  .nav-links { display: none; }
  .hero-grid, .auth-wrap { grid-template-columns: 1fr; }
  .cards, .pricing { grid-template-columns: 1fr; }
  .auth-aside { min-height: 360px; }
}