:root {
  --bg: #f4f5f7; --card: #ffffff; --text: #1b2130; --muted: #667085; --border: #e2e5ea;
  --accent: #2563eb; --accent-text: #ffffff; --input: #f9fafb;
  --jazz: #c8102e; --easy: #1fa34a;
  --ok-bg: #e7f6ec; --ok-text: #136c34; --warn-bg: #fff6e0; --warn-text: #8a5a00;
  --err-bg: #fdecec; --err-text: #a11b1b; --info-bg: #e8effd; --info-text: #1e4fb8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218; --card: #181c24; --text: #e6e9ef; --muted: #98a2b3; --border: #2a303b;
    --input: #11151c; --accent: #4f83f1;
    --ok-bg: #11301e; --ok-text: #7fdca2; --warn-bg: #3a2e12; --warn-text: #f3c969;
    --err-bg: #3a1616; --err-text: #f39b9b; --info-bg: #15233f; --info-text: #9dbcff;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 14px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.wrap { max-width: 1000px; margin: 0 auto; padding: 24px 16px 48px; }
.wrap.narrow { max-width: 560px; }
.center-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.card.narrow { width: 100%; max-width: 420px; text-align: center; }

/* forms */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.full { grid-column: 1 / -1; }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea { width: 100%; padding: 10px 11px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--input); color: var(--text); font: inherit; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.check { display: flex; gap: 8px; align-items: center; color: var(--text); font-size: 15px; margin: 0; }
.check input { width: auto; }
.btn { display: inline-block; padding: 11px 20px; border: 0; border-radius: 8px; background: var(--accent);
  color: var(--accent-text); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.block { width: 100%; padding: 13px; font-size: 16px; }
.btn.light { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.btn.sm { padding: 6px 12px; font-size: 13px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 16px; }

/* wallet choice */
.wallets { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.wallet { position: relative; }
.wallet input { position: absolute; opacity: 0; }
.wallet span { display: block; padding: 16px; text-align: center; font-weight: 700; font-size: 17px;
  border: 2px solid var(--border); border-radius: 10px; cursor: pointer; background: var(--input); }
.wallet input:checked + span.jazzcash { border-color: var(--jazz); color: var(--jazz); }
.wallet input:checked + span.easypaisa { border-color: var(--easy); color: var(--easy); }
.wallet input:focus-visible + span { outline: 2px solid var(--accent); }

/* messages */
.alert { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert.ok { background: var(--ok-bg); color: var(--ok-text); }
.alert.warn { background: var(--warn-bg); color: var(--warn-text); }
.alert.err { background: var(--err-bg); color: var(--err-text); }
.alert.info { background: var(--info-bg); color: var(--info-text); }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-paid { background: var(--ok-bg); color: var(--ok-text); }
.badge-pending { background: var(--warn-bg); color: var(--warn-text); }
.badge-failed, .badge-cancelled { background: var(--err-bg); color: var(--err-text); }

/* result page */
.big-icon { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center;
  margin: 0 auto 12px; font-size: 32px; font-weight: 700; }
.big-icon.paid { background: var(--ok-bg); color: var(--ok-text); }
.big-icon.pending { background: var(--warn-bg); color: var(--warn-text); }
.big-icon.failed { background: var(--err-bg); color: var(--err-text); }
dl.details { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; text-align: left; margin: 16px 0 0; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; word-break: break-all; }
.spinner { width: 36px; height: 36px; margin: 0 auto 12px; border: 4px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* admin */
.topbar { background: var(--card); border-bottom: 1px solid var(--border); }
.topbar .wrap { display: flex; align-items: center; gap: 20px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.topbar strong { font-size: 16px; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a { padding: 6px 12px; border-radius: 6px; text-decoration: none; color: var(--muted); }
.topbar nav a.on { background: var(--bg); color: var(--text); font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.stat .label { font-size: 13px; color: var(--muted); }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
code { font-size: 13px; background: var(--input); padding: 2px 6px; border-radius: 4px; word-break: break-all; }