:root {
  --bg: #f4f5fb;
  --card: #ffffff;
  --ink: #171a33;
  --muted: #5d627f;
  --line: #e6e8f2;
  --violet: #6d28d9;
  --violet-2: #7c3aed;
  --danger: #9f1239;
  --ok: #166534;
  --warn-bg: #fff7ed;
  --warn-ink: #9a3412;
  --radius: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Segoe UI", Inter, Tahoma, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--violet); }
button, input { font: inherit; }
.shell { max-width: 480px; margin: 0 auto; min-height: 100vh; padding: 14px 14px 40px; }
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 8px; color: inherit; text-decoration: none; font-weight: 800; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav { display: flex; gap: 10px; font-size: 13px; font-weight: 600; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(30, 25, 80, .06);
}
.hero { padding: 18px 16px 8px; }
.hero h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: -.4px; }
.lede { margin: 0; color: var(--muted); line-height: 1.45; }
.list { display: grid; gap: 10px; margin-top: 14px; }
.product {
  width: 100%; text-align: left; padding: 14px; border: 1px solid var(--line);
  border-radius: 16px; background: #fff; cursor: pointer;
}
.product:hover { border-color: #d8c7fb; }
.product b { display: block; font-size: 16px; }
.product span { color: var(--muted); font-size: 13px; }
.price { margin-top: 8px; font-weight: 800; font-size: 18px; }
.old { margin-left: 8px; color: #989cb3; font-weight: 600; font-size: 14px; text-decoration: line-through; }
.badge {
  display: inline-block; margin-bottom: 6px; padding: 3px 8px; border-radius: 999px;
  background: #f3e8ff; color: var(--violet); font-size: 12px; font-weight: 700;
}
.panel { padding: 16px; }
.panel h2 { margin: 0 0 8px; font-size: 22px; }
.rules { margin: 10px 0; padding-left: 18px; color: var(--ink); }
.rules li { margin: 7px 0; line-height: 1.4; }
label { display: block; margin: 12px 0 6px; font-size: 13px; font-weight: 700; }
input[type="email"] {
  width: 100%; padding: 13px 12px; border-radius: 12px; border: 1px solid #d9dced; background: #fff;
}
input[type="email"]:focus { outline: 3px solid rgba(124, 58, 237, .18); border-color: var(--violet-2); }
.check { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font-size: 14px; line-height: 1.4; font-weight: 500; }
.check input { width: 20px; height: 20px; margin-top: 2px; flex: 0 0 auto; }
.btn {
  width: 100%; border: 0; border-radius: 12px; padding: 14px 16px; color: #fff; font-weight: 700;
  background: linear-gradient(135deg, var(--violet) 0%, var(--violet-2) 100%); cursor: pointer;
}
.btn:disabled { cursor: not-allowed; color: #6b728d; background: #eceef6; }
.btn.ghost { margin-top: 8px; color: var(--ink); background: #eef0f7; }
.note, .warn, .error {
  margin: 12px 0; padding: 12px; border-radius: 12px; line-height: 1.45; font-size: 14px;
}
.note { background: #f6f7fb; color: var(--muted); }
.warn { background: var(--warn-bg); color: var(--warn-ink); }
.error { background: #fff1f2; color: var(--danger); }
.amount { font-size: 34px; font-weight: 800; letter-spacing: -.6px; margin: 4px 0 0; }
.sbp {
  margin-top: 14px; padding: 14px; border-radius: 16px; border: 1px dashed #d5d8ea; background: #fbfbfe;
}
.sbp strong { display: block; font-size: 18px; }
.foot { margin-top: 18px; color: var(--muted); font-size: 12.5px; line-height: 1.5; }
.links { display: flex; flex-wrap: wrap; gap: 10px; }
.page { max-width: 760px; }
.page h1 { font-size: 30px; margin-bottom: 8px; }
.page h2 { font-size: 20px; margin: 26px 0 8px; }
.page p, .page li { line-height: 1.55; }
.page .card { padding: 18px 18px 28px; }
.req div { margin: 4px 0; }
.missing { background: #fff7ed; color: #9a3412; padding: 12px; border-radius: 12px; }