:root {
  --bg1: #0b1220;
  --bg2: #1e1b4b;
  --accent: #8b5cf6;
  --accent2: #6366f1;
  --green: #34d399;
  --red: #f87171;
  --text: #eef2ff;
  --muted: #94a3b8;
  --glass: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.14);
  --radius: 18px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg1) 0%, #16213e 45%, var(--bg2) 100%) fixed;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(4, 10, 25, 0.58);
  z-index: 0;
  pointer-events: none;
}

.app { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: 24px 20px 60px; }

.hidden { display: none !important; }

/* ---------- 玻璃卡片 ---------- */
.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  padding: 22px;
  margin-bottom: 20px;
}

/* ---------- 按钮 ---------- */
.btn {
  border: none;
  cursor: pointer;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.1); }
.btn:active { transform: translateY(0); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  border: none;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}
.btn.green {
  background: linear-gradient(135deg, #059669, #10b981);
  border: none;
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}
.btn.danger {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  border: none;
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35);
}
.btn.ghost { background: transparent; }
.btn.big { padding: 12px 28px; font-size: 16px; }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  width: 400px;
  max-width: 92vw;
  padding: 44px 40px;
  text-align: center;
  animation: rise 0.5s ease;
}
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.login-logo { font-size: 52px; margin-bottom: 12px; }
.login-card h1 { font-size: 26px; letter-spacing: 2px; margin-bottom: 6px; }
.login-sub { color: var(--muted); margin-bottom: 26px; font-size: 13px; }
.login-card input {
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  outline: none;
  transition: border-color 0.2s;
}
.login-card input:focus { border-color: var(--accent); }
.login-err { color: var(--red); font-size: 13px; min-height: 20px; margin-top: 12px; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  margin-bottom: 22px;
}
.logo { font-size: 19px; font-weight: 700; letter-spacing: 1px; display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 22px; }
.top-actions { display: flex; gap: 8px; align-items: center; }
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  margin-left: 4px;
  border-radius: 999px;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}
.todo-actions { display: flex; gap: 8px; }
.todo-do {
  border: none;
  cursor: pointer;
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  transition: all 0.2s;
}
.todo-do:hover { background: rgba(52, 211, 153, 0.28); }
.todo-skip {
  border: none;
  cursor: pointer;
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: all 0.2s;
}
.todo-skip:hover { background: rgba(255, 255, 255, 0.15); }
.todo-time { color: var(--muted); font-size: 12px; }

/* ---------- 统计卡片 ---------- */
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 20px; }
.stat { text-align: center; padding: 26px 18px; animation: rise 0.5s ease; }
.stat-label { color: var(--muted); font-size: 14px; letter-spacing: 1px; margin-bottom: 10px; }
.stat-value { font-size: 44px; font-weight: 800; line-height: 1.1; text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4); }
.stat-value.green { color: var(--green); }
.stat-value.red { color: var(--red); }
.stat-sub { color: rgba(255, 255, 255, 0.5); font-size: 12px; margin-top: 10px; }

/* ---------- 图表 ---------- */
.chart-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.chart-card h3 { font-size: 16px; }
.chart-tabs { display: flex; gap: 6px; }
.tab {
  padding: 7px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}
.tab:hover { color: #fff; }
.tab.active {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color: #fff;
  border-color: transparent;
}
#chart { height: 230px; width: 100%; }

/* ---------- 工具栏 ---------- */
.toolbar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; flex: 1; }
.filters select, .manage-add input, .modal-box input, .picker select {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.filters select option { background: #1e293b; color: #fff; }
.filters select:focus, .modal-box input:focus, .picker select:focus { border-color: var(--accent); }

/* ---------- 表格 ---------- */
.table-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.table-head h3 { font-size: 16px; }
.count { color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; }
table#recordsTable { width: 100%; border-collapse: collapse; font-size: 14px; }
#recordsTable th {
  text-align: left;
  padding: 12px 14px;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
}
#recordsTable td { padding: 13px 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); white-space: nowrap; }
#recordsTable tbody tr { transition: background 0.15s; }
#recordsTable tbody tr:hover { background: rgba(255, 255, 255, 0.05); }
#recordsTable tbody tr:last-child td { border-bottom: none; }
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.tag.paid { background: rgba(52, 211, 153, 0.15); color: var(--green); }
.tag.partial { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.tag.unpaid { background: rgba(248, 113, 113, 0.15); color: var(--red); }
.amount { font-weight: 700; }
.amount.paid { color: var(--green); }
.amount.unpaid { color: var(--red); }
.row-actions { display: flex; gap: 8px; }
.del-btn {
  border: none;
  cursor: pointer;
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--red);
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.3);
  transition: all 0.2s;
}
.del-btn:hover { background: rgba(248, 113, 113, 0.25); }
.collect-btn {
  border: none;
  cursor: pointer;
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  transition: all 0.2s;
}
.collect-btn:hover { background: rgba(52, 211, 153, 0.28); }
.amount.partial { color: #fbbf24; }
.empty { text-align: center; color: var(--muted); padding: 30px 0; font-size: 14px; }

/* ---------- 汇总栏 ---------- */
.summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin-top: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 14px;
  color: var(--muted);
  align-items: center;
}
.summary-bar b { font-size: 17px; color: #fff; margin-left: 2px; }
.summary-bar .c-green { color: var(--green); }
.summary-bar .c-red { color: var(--red); }

/* ---------- 模态框 ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal-mask {
  position: absolute; inset: 0;
  background: rgba(2, 6, 23, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal-box { position: relative; width: 460px; max-width: 94vw; padding: 28px; animation: rise 0.3s ease; }
.modal-box.small { width: 400px; }
.modal-box.wide { width: 720px; }
.modal-box h3 { font-size: 18px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.field input, .picker select, .manage-add input { width: 100%; }
.picker { display: flex; gap: 8px; }
.picker select { flex: 1; }
.mini-btn {
  width: 40px;
  flex: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.2s;
}
.mini-btn:hover { background: rgba(139, 92, 246, 0.4); }
.mini-btn.danger:hover { background: rgba(239, 68, 68, 0.4); }
.radio-row { display: flex; gap: 18px; }
.radio { display: flex; align-items: center; cursor: pointer; gap: 6px; font-size: 14px; padding: 10px 16px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.14); background: rgba(255, 255, 255, 0.05); }
.radio input { display: none; }
.radio .tick { color: var(--green); font-weight: 600; }
.radio .cross { color: var(--red); font-weight: 600; }
.radio:has(input:checked) { border-color: var(--accent); background: rgba(139, 92, 246, 0.15); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.modal-tip { color: var(--muted); font-size: 13px; margin-bottom: 14px; line-height: 1.6; }
.modal-tip code { background: rgba(255, 255, 255, 0.1); padding: 2px 6px; border-radius: 6px; color: #c7d2fe; }

/* ---------- 名称管理 ---------- */
.manage-add { display: flex; gap: 8px; margin-bottom: 16px; }
.manage-add input { flex: 1; }
.manage-list { max-height: 320px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; }
.manage-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
}
.manage-item .x {
  border: none;
  cursor: pointer;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  color: var(--red);
  background: rgba(248, 113, 113, 0.12);
  font-weight: 700;
  transition: all 0.2s;
}
.manage-item .x:hover { background: rgba(248, 113, 113, 0.35); }

/* ---------- 日志 ---------- */
.logs-wrap { max-height: 60vh; overflow-y: auto; }
.logs-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.logs-table th { text-align: left; padding: 10px 12px; color: var(--muted); border-bottom: 1px solid rgba(255, 255, 255, 0.1); white-space: nowrap; }
.logs-table td { padding: 10px 12px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); vertical-align: top; }
.logs-table td:first-child { white-space: nowrap; color: var(--muted); }
.logs-table .act { font-weight: 600; white-space: nowrap; }
.logs-table .act.login { color: var(--green); }
.logs-table .act.delete { color: var(--red); }

/* ---------- 背景预览 ---------- */
.bg-preview {
  width: 100%;
  height: 130px;
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 14px;
  z-index: 200;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  animation: rise 0.3s ease;
}
.toast.err { border-color: var(--red); color: #fecaca; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .stats-row { grid-template-columns: 1fr; gap: 12px; }
  .topbar { flex-direction: column; gap: 12px; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .filters { justify-content: stretch; }
}