:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --border: #e3e6eb;
  --text: #14171c;
  --muted: #5f6773;
  --accent: #155eef;
  --accent-soft: #e8efff;
  --ok: #0f7b4a;
  --ok-soft: #e3f5ec;
  --warn: #9a5b00;
  --warn-soft: #fff3dc;
  --bad: #b42318;
  --bad-soft: #fde8e7;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --surface: #161a21;
    --surface-2: #1d222b;
    --border: #2a303b;
    --text: #e8ebf0;
    --muted: #97a0ad;
    --accent: #6d9bff;
    --accent-soft: #1b2740;
    --ok: #4cc38a;
    --ok-soft: #13291f;
    --warn: #f0b24a;
    --warn-soft: #2d2412;
    --bad: #ff7b72;
    --bad-soft: #321817;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; margin: 0; }
h2 { font-size: 17px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: var(--mono); }
.num { font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }

button, .btn {
  font: inherit; font-size: 14px; font-weight: 500; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 7px 12px; border-radius: 8px; display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
}
button:hover, .btn:hover { background: var(--surface-2); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { filter: brightness(1.08); background: var(--accent); }
button.danger { color: var(--bad); }
button.ghost { border-color: transparent; background: transparent; }
button:disabled { opacity: .55; cursor: default; }
input, select, textarea {
  font: inherit; width: 100%; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
label { display: block; font-size: 13px; font-weight: 500; color: var(--muted); }
label > input, label > select, label > textarea { margin-top: 4px; }
textarea { font-family: var(--mono); font-size: 12px; min-height: 120px; resize: vertical; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.pad { padding: 18px 20px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spread { justify-content: space-between; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stack > * + * { margin-top: 12px; }

/* Top bar */
.topbar { border-bottom: 1px solid var(--border); background: var(--surface); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.logo i { width: 24px; height: 24px; border-radius: 7px; background: var(--accent); display: inline-block; position: relative; }
.logo i::after { content: ""; position: absolute; inset: 7px 6px; border: 2px solid #fff; border-width: 2px 0; }
main.wrap { padding-top: 24px; padding-bottom: 64px; }
main > * + * { margin-top: 20px; }

/* Local / Production switch */
.switch { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.switch button { border: 0; border-radius: 0; padding: 4px 10px; font-size: 13px; color: var(--muted); background: var(--surface); }
.switch button[aria-pressed="true"] { background: var(--accent); color: #fff; }
.switch button[data-target="prod"][aria-pressed="true"] { background: var(--bad); }

/* Inbox */
.inbox { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; }
.address { font-family: var(--mono); font-size: 18px; font-weight: 600; word-break: break-all; }
.howto { border-top: 1px solid var(--border); margin-top: 16px; padding-top: 14px; }
.howto summary { cursor: pointer; font-weight: 500; }
.howto ol { margin: 10px 0 0; padding-left: 20px; }
.howto li + li { margin-top: 6px; }
.howto code { font-family: var(--mono); font-size: 12.5px; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
.howto .grid2 > div { background: var(--surface-2); border-radius: 10px; padding: 12px 14px; }

/* Notices */
.notice { display: flex; gap: 14px; align-items: center; padding: 14px 18px; border-radius: var(--radius); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.notice .code { font-family: var(--mono); font-size: 20px; font-weight: 700; letter-spacing: .06em; }
.notice > div:first-child { flex: 1; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat { padding: 14px 16px; }
.stat .label { font-size: 13px; color: var(--muted); }
.stat .value.multi { font-size: 17px; }
.stat .value { font-size: 22px; font-weight: 650; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat .sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* Tabs + tables */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); padding: 0 12px; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 12px 10px; color: var(--muted); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.tabs .count { font-size: 12px; background: var(--surface-2); padding: 0 7px; border-radius: 99px; }
.tabs .count.warn { background: var(--warn-soft); color: var(--warn); }
.tabs .spacer { flex: 1; }
.tabs .tab-actions { display: flex; align-items: center; gap: 8px; }
.tabs .tab-actions button { border: 1px solid var(--border); border-radius: 8px; padding: 5px 10px; color: var(--text); }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; padding: 10px 16px; border-bottom: 1px solid var(--border); }
td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--surface-2); }
tbody tr:last-child td { border-bottom: 0; }
td.right, th.right { text-align: right; }
.merchant { display: flex; align-items: center; gap: 10px; font-weight: 550; }
.avatar { width: 30px; height: 30px; flex: none; border-radius: 8px; display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff; }
.empty { padding: 40px 20px; text-align: center; color: var(--muted); }

.badge { display: inline-block; font-size: 12px; font-weight: 550; padding: 2px 8px; border-radius: 99px; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.accent { background: var(--accent-soft); color: var(--accent); }
.change { font-size: 12px; font-weight: 550; }
.change.up { color: var(--bad); }
.change.down { color: var(--ok); }

/* Dev panel */
.dev { border-style: dashed; }
.dev h2 { display: flex; align-items: center; gap: 8px; }
.drop { border: 1.5px dashed var(--border); border-radius: 10px; padding: 12px; text-align: center; color: var(--muted); font-size: 13px; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.log { font-family: var(--mono); font-size: 12px; max-height: 180px; overflow: auto; background: var(--surface-2); border-radius: 8px; padding: 8px 10px; white-space: pre-wrap; }

/* Auth */
.auth { max-width: 400px; margin: 9vh auto 0; }
.auth .pitch { text-align: center; margin-bottom: 22px; }
.auth .pitch h1 { font-size: 26px; letter-spacing: -.02em; margin-top: 14px; }
.auth .pitch .logo { justify-content: center; }
.auth form > * + * { margin-top: 12px; }
.error { color: var(--bad); font-size: 13px; min-height: 1em; }

/* Modal */
dialog { border: 1px solid var(--border); border-radius: 14px; padding: 0; width: min(640px, calc(100vw - 32px)); background: var(--surface); color: var(--text); box-shadow: 0 20px 50px rgba(0,0,0,.25); }
dialog::backdrop { background: rgba(10, 14, 20, .45); }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.modal-body { padding: 18px 20px; max-height: 70vh; overflow: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.modal-foot .left { margin-right: auto; display: flex; gap: 8px; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 6px 12px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
pre.body { white-space: pre-wrap; font-family: var(--mono); font-size: 12px; background: var(--surface-2); padding: 12px; border-radius: 8px; max-height: 260px; overflow: auto; margin: 0; }
.history { font-size: 13px; }
.history td { padding: 6px 0; cursor: default; }
.history tr:hover { background: none; }

#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); opacity: 0; transition: .2s; background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 99px; font-size: 14px; pointer-events: none; z-index: 10; }
#toast.show { opacity: 1; transform: translateX(-50%); }

@media (max-width: 820px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .inbox { grid-template-columns: 1fr; }
  .grid2 { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
  td, th { padding: 10px 10px; }
  .tabs { overflow-x: auto; }
  .notice { flex-wrap: wrap; }
  .notice > div:first-child { flex-basis: 100%; }
  .address { font-size: 16px; }
  .stat .value { font-size: 19px; }
  .modal-foot .left { width: 100%; }
}