:root {
  --bg: #0f1115;
  --card: #181b22;
  --border: #2b303b;
  --text: #e8eaed;
  --muted: #9aa1ad;
  --gold: #ffb000;
  --gold-dark: #1a1200;
  --danger: #ff8a80;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--gold); }
.wrap { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 8px; color: var(--gold); }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
.intro { color: var(--muted); margin: 0 0 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.field { margin-bottom: 14px; min-width: 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }
label { display: block; font-weight: 600; margin-bottom: 4px; font-size: .9rem; }
label span { color: var(--muted); font-weight: 400; }
input, select {
  width: 100%; padding: 10px 12px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
input:disabled, select:disabled { opacity: .6; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.hint { margin: 4px 0 0; font-size: .8rem; color: var(--muted); min-height: 1em; }
.hint.error { color: var(--danger); }
.combo { position: relative; }
#server-list {
  position: absolute; z-index: 10; left: 0; right: 0; top: 100%; margin: 4px 0 0; padding: 4px;
  list-style: none; max-height: 240px; overflow-y: auto;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
}
#server-list li { padding: 8px 10px; border-radius: 6px; cursor: pointer; }
#server-list li[aria-selected="true"], #server-list li:hover { background: var(--gold); color: var(--gold-dark); }
#server-list li.info { color: var(--muted); cursor: default; font-size: .85rem; }
#server-list li.info:hover { background: none; color: var(--muted); }
.result .price { font-size: 2.2rem; font-weight: 700; color: var(--gold); line-height: 1.2; }
.result .per { color: var(--muted); margin: 0 0 4px; }
.result .error { color: var(--danger); margin: 0; }
.result.loading #result { opacity: .5; }
.muted { color: var(--muted); }
.note { font-size: .85rem; color: var(--muted); margin: 8px 0; }
.buy {
  display: block; text-align: center; padding: 14px; margin-top: 12px; border-radius: 8px;
  background: var(--gold); color: var(--gold-dark); font-weight: 700; text-decoration: none;
}
.buy[aria-disabled="true"] { opacity: .4; pointer-events: none; }
.faq details { border-bottom: 1px solid var(--border); padding: 8px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 6px 0 0; }
footer { margin-top: 32px; font-size: .85rem; }
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f7f9; --card: #fff; --border: #d8dce3; --text: #1b1e24; --muted: #5b6270; --danger: #c62828; }
  a, h1 { color: #9a6700; }
  .result .price { color: #9a6700; }
}