:root {
  --navy-900: #07203c;
  --navy-800: #0b2b4d;
  --navy-700: #12395f;
  --navy-600: #1b4a76;
  --teal-500: #17a2a2;
  --teal-400: #22c1a4;
  --teal-100: #d9f4ef;
  --ink: #0d1b2a;
  --muted: #5b7186;
  --line: #d7e3ee;
  --bg: #f2f6fa;
  --card: #ffffff;
  --warn: #b4690e;
  --warn-bg: #fff4e2;
  --danger: #b3261e;
  --danger-bg: #fdeceb;
  --ok: #0f7b52;
  --ok-bg: #e3f6ed;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
}

button, input, select, textarea { font: inherit; color: inherit; }

button { cursor: pointer; }

.app-header {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: #fff;
  padding: 12px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

.app-header h1 { font-size: 17px; margin: 0; letter-spacing: .5px; }

.identity { font-size: 13px; opacity: .92; }

.identity strong { color: var(--teal-400); }

.topbar-actions { display: flex; gap: 8px; align-items: center; }

nav.tabs {
  display: flex;
  overflow-x: auto;
  background: var(--navy-800);
}

nav.tabs button {
  flex: 1 0 auto;
  min-width: 92px;
  padding: 12px 14px;
  border: 0;
  background: transparent;
  color: #cfe0ee;
  font-size: 15px;
  border-bottom: 3px solid transparent;
}

nav.tabs button.active {
  color: #fff;
  border-bottom-color: var(--teal-400);
  background: rgba(255, 255, 255, .06);
}

main { padding: 14px; max-width: 1240px; margin: 0 auto; }

.admin-shell { display: flex; min-height: calc(100vh - 56px); }

.admin-side {
  width: 190px;
  flex: 0 0 190px;
  background: var(--navy-800);
  padding: 10px 0;
}

.admin-side button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 13px 18px;
  border: 0;
  background: transparent;
  color: #cfe0ee;
  font-size: 15px;
  border-left: 4px solid transparent;
}

.admin-side button.active {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-left-color: var(--teal-400);
}

.admin-main { flex: 1; min-width: 0; padding: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
}

.card > h2, .card > h3 { margin: 0 0 10px; font-size: 16px; color: var(--navy-700); }

.grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }

.metric {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}

.metric .label { color: var(--muted); font-size: 13px; }
.metric .value { font-size: 21px; font-weight: 700; color: var(--navy-700); }
.metric .value.warn { color: var(--warn); }

label.field { display: block; margin-bottom: 12px; }
label.field span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }

input, select, textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

textarea { min-height: 76px; resize: vertical; }

.btn {
  border: 0;
  border-radius: 10px;
  padding: 13px 16px;
  font-size: 16px;
  font-weight: 600;
  background: var(--navy-700);
  color: #fff;
}

.btn.primary { background: linear-gradient(135deg, var(--teal-500), var(--teal-400)); color: #04302c; }
.btn.ghost { background: #fff; color: var(--navy-700); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); }
.btn.block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn-row .btn { flex: 1 1 150px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; background: #f7fafc; }
tbody tr:hover { background: #f7fbfd; }

.rowline { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--line); }
.rowline:last-child { border-bottom: 0; }
.rowline .k { color: var(--muted); flex: 0 0 96px; }
.rowline .v { flex: 1; text-align: right; word-break: break-all; }

.tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--teal-100);
  color: #0b6b5c;
  margin: 0 6px 6px 0;
}

.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.danger { background: var(--danger-bg); color: var(--danger); }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.muted { background: #eef3f8; color: var(--muted); }

.notice { border-radius: 10px; padding: 11px 13px; margin-bottom: 12px; font-size: 14px; }
.notice.error { background: var(--danger-bg); color: var(--danger); border: 1px solid #f3c9c6; }
.notice.warn { background: var(--warn-bg); color: var(--warn); border: 1px solid #f2dcb8; }
.notice.ok { background: var(--ok-bg); color: var(--ok); border: 1px solid #bfe6d3; }
.notice.info { background: #eaf2fa; color: var(--navy-700); border: 1px solid #cfe0ee; }

.empty { padding: 26px 12px; text-align: center; color: var(--muted); background: #fbfdff; border: 1px dashed var(--line); border-radius: 12px; }

.list-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 12px;
  margin-bottom: 10px;
}

.list-item .title { font-weight: 700; color: var(--navy-700); margin-bottom: 4px; }
.list-item .sub { color: var(--muted); font-size: 13px; }

.clickable { cursor: pointer; }

.filterbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.filterbar > * { flex: 1 1 150px; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { border-left: 3px solid var(--teal-400); padding: 0 0 12px 12px; margin-left: 4px; }
.timeline li .t { font-size: 12px; color: var(--muted); }
.timeline li .a { font-weight: 600; }

.money { font-variant-numeric: tabular-nums; }
.money.unknown { color: var(--warn); }

.section-title { display: flex; align-items: center; justify-content: space-between; margin: 4px 0 10px; }
.section-title h3 { margin: 0; font-size: 15px; color: var(--navy-700); }

.hidden { display: none !important; }

.small { font-size: 12px; color: var(--muted); }

dialog, .modal {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  max-width: 560px;
  width: 92%;
  background: #fff;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 32, 60, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
  padding: 14px;
}

@media (max-width: 720px) {
  .admin-shell { flex-direction: column; }
  .admin-side { width: 100%; flex: none; display: flex; overflow-x: auto; }
  .admin-side button { flex: 1 0 auto; border-left: 0; border-bottom: 3px solid transparent; }
  .admin-side button.active { border-bottom-color: var(--teal-400); }
  .admin-main { padding: 12px; }
  table { font-size: 13px; }
  th, td { padding: 7px 6px; }
}