:root { color-scheme: dark; --bg:#0c1218; --card:#171e27; --text:#e8eef6; --muted:#93a4b8; --line:#2a3644; --accent:#2dd4bf; --warn:#fbbf24; }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--text); font:16px/1.5 "Segoe UI", sans-serif; }
main { width:min(1100px, calc(100% - 48px)); margin:0 auto; padding:28px 0 56px; }
h1 { font-size:32px; margin:0 0 6px; }
h2 { font-size:18px; margin:0 0 8px; }
header p, .note { color:var(--muted); margin:6px 0 0; font-size:14px; }
header.top { display:flex; justify-content:space-between; align-items:center; gap:24px; }
.layout { display:grid; grid-template-columns:minmax(0,1.55fr) minmax(280px,.85fr); gap:18px; align-items:start; margin-top:8px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:16px 18px; margin-top:0; }
.intro { margin:18px 0 16px; }
.intro p { margin:8px 0 0; }
.intro ul { margin:10px 0 0; padding-left:18px; }
.intro li { margin:6px 0; }
.col { display:grid; gap:14px; }
.col .card { margin-top:0; }
.label { color:var(--muted); font-size:12px; }
.price { margin:8px 0 0; font-size:20px; font-weight:700; }
.price span { display:block; color:var(--muted); font-size:13px; font-weight:500; }
.match { padding:10px 0; border-top:1px solid var(--line); }
.match:first-of-type { border-top:0; }
.stats { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:16px; }
.stats .card { margin-top:0; }
.big { font-size:26px; font-weight:800; margin-top:4px; }
.days { list-style:none; margin:8px 0 0; padding:0; display:grid; grid-template-columns:repeat(4,1fr); gap:8px 18px; }
.days li { display:flex; justify-content:space-between; padding:8px 0; border-top:1px solid var(--line); }
.join, .primary, button, .linkbtn, .ghost {
  display:block; text-align:center; text-decoration:none;
  border-radius:12px; padding:12px 16px; font-weight:700;
}
header.top .join { width:auto; margin:0; white-space:nowrap; }
.join { background:#229ed9; color:#fff; }
.primary, button.primary { background:var(--accent); color:#042f2e; border:0; width:100%; margin-top:10px; }
button { background:#243041; color:var(--text); border:0; font:inherit; width:100%; margin-top:10px; cursor:pointer; }
.ghost { background:transparent; color:var(--accent); border:1px solid var(--line); width:100%; margin-top:10px; }
.actions { display:grid; }
.actions form { margin:0; }
.warn { color:var(--warn); }
.amount { font-size:36px; font-weight:800; margin:6px 0; }
.amount small { font-size:14px; }
.addr { font-family:ui-monospace, Consolas, monospace; word-break:break-all; background:#0c1420; border-radius:10px; padding:10px; }
label { display:block; margin-top:10px; color:var(--muted); font-size:13px; }
input { width:100%; margin-top:4px; padding:12px; border-radius:10px; border:1px solid var(--line); background:#0c1420; color:var(--text); }
.back { color:var(--accent); text-decoration:none; font-size:14px; }
.pay { max-width:480px; }

@media (max-width: 800px) {
  main { width:min(560px, 100%); padding:16px 14px 40px; }
  h1 { font-size:24px; }
  header.top { display:block; }
  header.top .join, .join { display:block; width:100%; margin-top:12px; }
  .layout, .stats, .days { grid-template-columns:1fr; }
  .stats { grid-template-columns:1fr 1fr; }
  .col { gap:12px; }
  .card { margin-top:12px; }
  .intro { margin-top:14px; }
  .layout { gap:0; }
}