:root {
  --bg: #0f1115; --panel: #171a21; --panel-2: #1e222b; --border: #2a2f3a;
  --text: #e6e9ef; --muted: #9aa3b2; --accent: #4f8cff; --accent-2: #6ea8ff;
  --green: #35c07f; --amber: #e2a03f; --red: #e5484d; --chip: #232833;
  --radius: 10px; --shadow: 0 6px 24px rgba(0,0,0,.35);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f6f8; --panel: #ffffff; --panel-2: #f0f2f5; --border: #e2e5ea;
    --text: #1a1e26; --muted: #626b7a; --accent: #2f6bff; --chip: #eef1f6;
    --shadow: 0 6px 20px rgba(20,30,60,.08);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 14px/1.5 -apple-system, "PingFang SC", "Microsoft YaHei", Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
button { font: inherit; cursor: pointer; }
.hidden { display: none !important; }

/* ── login ── */
.login-wrap { min-height: 100vh; display: grid; place-items: center; }
.login-card {
  width: 340px; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.login-card h1 { font-size: 18px; margin: 0 0 4px; }
.login-card p { color: var(--muted); margin: 0 0 20px; font-size: 13px; }
.login-card input { width: 100%; margin-bottom: 12px; }
.login-err { color: var(--red); font-size: 13px; min-height: 18px; }

/* ── shell ── */
header.topbar {
  display: flex; align-items: center; gap: 16px; padding: 12px 20px;
  background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
header .brand { font-weight: 700; font-size: 15px; }
header .brand span { color: var(--muted); font-weight: 400; margin-left: 8px; font-size: 12px; }
header .spacer { flex: 1; }
header .who { color: var(--muted); font-size: 12px; }

main { padding: 20px; max-width: 1400px; margin: 0 auto; }

/* ── stat cards ── */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.stat .value { font-size: 22px; font-weight: 700; letter-spacing: .3px; }
.stat .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* ── tabs ── */
.tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--border); }
.tabs button {
  background: none; border: none; color: var(--muted); padding: 10px 16px;
  border-bottom: 2px solid transparent; font-weight: 600;
}
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }

/* ── filters ── */
.filters { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px; }
.filters .row { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { color: var(--muted); font-size: 12px; }
input, select {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 8px 10px; outline: none; min-width: 130px;
}
input:focus, select:focus { border-color: var(--accent); }
input[type=date] { min-width: 140px; }
.daterange { display: flex; align-items: center; gap: 6px; }
.daterange span { color: var(--muted); }

.btn { background: var(--accent); color: #fff; border: none; border-radius: 8px; padding: 9px 16px; font-weight: 600; }
.btn:hover { filter: brightness(1.07); }
.btn.ghost { background: var(--chip); color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--red); color: #fff; }
.btn.sm { padding: 5px 10px; font-size: 12px; border-radius: 6px; }

.sites-picker { display: flex; flex-wrap: wrap; gap: 6px; max-width: 640px; }
.site-chip {
  display: inline-flex; align-items: center; gap: 6px; background: var(--chip);
  border: 1px solid var(--border); border-radius: 20px; padding: 4px 10px; font-size: 12px; cursor: pointer; user-select: none;
}
.site-chip.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.site-chip.off { opacity: .55; }

/* ── table ── */
.table-wrap { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 9px 12px; text-align: left; white-space: nowrap; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel); cursor: pointer; }
th.nosort { cursor: default; }
th .arrow { font-size: 10px; margin-left: 4px; color: var(--accent); }
tbody tr:hover { background: var(--panel-2); }
td.email { font-family: ui-monospace, Menlo, monospace; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge.paid { background: rgba(53,192,127,.16); color: var(--green); }
.badge.pending { background: rgba(226,160,63,.16); color: var(--amber); }
.badge.refunded { background: rgba(229,72,77,.16); color: var(--red); }
.badge.failed { background: rgba(150,150,150,.16); color: var(--muted); }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
.muted { color: var(--muted); }

.tablebar { display: flex; align-items: center; gap: 12px; padding: 10px 4px; }
.tablebar .spacer { flex: 1; }
.pager { display: flex; align-items: center; gap: 8px; }
.pager button { background: var(--chip); border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 5px 10px; }
.pager button:disabled { opacity: .4; cursor: default; }

.empty { padding: 40px; text-align: center; color: var(--muted); }
.loading { padding: 40px; text-align: center; color: var(--muted); }

/* ── drawer ── */
.drawer-mask { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 40; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100vh; width: 460px; max-width: 92vw;
  background: var(--panel); border-left: 1px solid var(--border); z-index: 41;
  box-shadow: var(--shadow); overflow: auto; padding: 20px;
}
.drawer h2 { font-size: 16px; margin: 0 0 4px; }
.drawer .close { position: absolute; top: 14px; right: 16px; background: none; border: none; color: var(--muted); font-size: 20px; }
.kv { display: grid; grid-template-columns: 92px 1fr; gap: 6px 10px; margin: 14px 0; }
.kv .k { color: var(--muted); }
.section-title { font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin: 18px 0 8px; }
.pay-item { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px; }
.pay-item .top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }

/* ── modal ── */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 50; display: grid; place-items: center; }
.modal { width: 400px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 8px; font-size: 16px; }
.modal p { color: var(--muted); font-size: 13px; }
.modal .warn { background: rgba(226,160,63,.12); border: 1px solid rgba(226,160,63,.4); color: var(--amber); padding: 10px 12px; border-radius: 8px; font-size: 12px; margin: 12px 0; }
.modal input { width: 100%; margin: 8px 0 14px; }
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 10px 18px; border-radius: 8px; box-shadow: var(--shadow); z-index: 60; }