:root {
  --primary: #0f766e;
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --danger: #dc2626;
  --warn: #b45309;
  --ok: #15803d;
  --primary-text: var(--primary);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220; --panel: #111827; --text: #e5e7eb; --muted: #94a3b8; --border: #243042;
    --primary-text: #5eead4; --warn: #f59e0b; --danger: #ef4444;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
h1 { font-size: 22px; margin: 0 0 12px; }
h2 { font-size: 17px; margin: 0 0 10px; }
h3 { font-size: 15px; margin: 18px 0 8px; }
a { color: var(--primary-text); }
.center-screen { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.narrow { width: 100%; max-width: 360px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 0; }
label.inline { display: flex; align-items: center; gap: 8px; color: var(--text); }
input, select, textarea {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; color: var(--text);
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
}
label.inline input { width: auto; margin: 0; }
textarea { min-height: 80px; font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
.btn { display: inline-block; padding: 8px 14px; margin-top: 12px; border: 0; border-radius: 8px; background: var(--primary); color: #fff; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 4px 10px; margin: 0; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: wait; }
.link { background: none; border: 0; color: var(--muted); cursor: pointer; text-decoration: underline; font: inherit; padding: 0; }
.error { color: var(--danger); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
#app { display: grid; grid-template-columns: 210px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 16px 10px; display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh; }
.logo { font-weight: 800; font-size: 18px; padding: 0 10px 12px; color: var(--primary-text); }
nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
nav a { padding: 8px 10px; border-radius: 8px; color: var(--text); text-decoration: none; display: flex; justify-content: space-between; }
nav a.active { background: color-mix(in srgb, var(--primary) 14%, transparent); color: var(--primary-text); font-weight: 600; }
.badge { background: var(--danger); color: #fff; border-radius: 999px; padding: 0 7px; font-size: 12px; }
.me { padding: 10px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; color: var(--muted); }
.main { padding: 24px; max-width: 1150px; width: 100%; min-width: 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.stat .v { font-size: 24px; font-weight: 700; }
.stat .k { color: var(--muted); font-size: 13px; }
.warn { background: color-mix(in srgb, var(--warn) 12%, transparent); color: var(--warn); border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--panel); }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: color-mix(in srgb, var(--primary) 6%, transparent); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--border); color: var(--text); }
.pill.PAID, .pill.COD_COLLECTED, .pill.DELIVERED, .pill.MATCHED, .pill.RESOLVED, .pill.online { background: #dcfce7; color: #166534; }
.pill.AWAITING_PAYMENT, .pill.VERIFYING, .pill.QUEUED, .pill.PENDING, .pill.COD_CONFIRMED { background: #fef3c7; color: #92400e; }
.pill.EXPIRED, .pill.CANCELLED, .pill.FAILED, .pill.UNMATCHED, .pill.offline, .pill.revoked { background: #fee2e2; color: #991b1b; }
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 4px 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.qr { width: 260px; max-width: 100%; background: #fff; padding: 8px; border-radius: 10px; border: 1px solid var(--border); }
.qr svg { display: block; width: 100%; height: auto; }
.till-amount { font-size: 32px; font-weight: 700; }
.secret { font-family: ui-monospace, Menlo, monospace; background: var(--bg); border: 1px dashed var(--border); padding: 10px; border-radius: 8px; overflow-wrap: anywhere; user-select: all; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
dialog { border: 1px solid var(--border); border-radius: 12px; padding: 18px; width: min(460px, 92vw); background: var(--panel); color: var(--text); }
dialog::backdrop { background: rgba(15, 23, 42, 0.5); }
.flash { position: fixed; bottom: 18px; right: 18px; background: var(--text); color: var(--panel); padding: 10px 14px; border-radius: 10px; max-width: 360px; z-index: 10; }
.flash.error { background: var(--danger); color: #fff; }
@media (max-width: 760px) {
  #app { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; }
  .sidebar { position: static; height: auto; flex-direction: column; padding: 10px; border-right: 0; border-bottom: 1px solid var(--border); }
  .logo { padding-bottom: 4px; }
  nav { flex: none; flex-direction: row; overflow-x: auto; }
  .me { padding: 8px 10px 0; }
  nav a { white-space: nowrap; }
  .main { padding: 16px; }
  .kv { grid-template-columns: 1fr; }
}
.grow { flex: 1; min-width: 200px; }
.grow input { margin: 0; }
.row > select { width: auto; margin: 0; }
.row > .btn, .row > label.inline { margin-top: 0; }
a.plain { color: inherit; text-decoration: none; }
.row.actions { margin-bottom: 14px; }
td .row { flex-wrap: nowrap; }
td .wrap { display: inline-block; min-width: 220px; max-width: 360px; white-space: normal; }
input[type="color"] { width: 64px; height: 36px; padding: 3px; cursor: pointer; }
.panel > .btn.small { margin-bottom: 8px; }