/* 管理后台样式 */

:root {
  --bg: #f0f2f8;
  --card: #fff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #6366f1;
  --accent-soft: rgba(99,102,241,.1);
  --danger: #ef4444;
  --ok: #22c55e;
  --warn: #f59e0b;
  --border: #e2e8f0;
  --radius: 12px;
  --side-w: 220px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧栏 */
.admin-side {
  width: var(--side-w);
  background: #1e293b;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
}
.admin-brand {
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.admin-brand h2 { font-size: 18px; color: #fff; }
.admin-brand span { font-size: 12px; color: #64748b; }

.admin-nav {
  flex: 1;
  padding: 10px 8px;
  overflow-y: auto;
}
.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: none;
  color: #94a3b8;
  font-size: 14px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 2px;
  transition: all .15s;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.nav-item.is-on { background: var(--accent); color: #fff; }

.admin-foot {
  padding: 12px 8px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.back-link {
  display: block;
  padding: 8px 14px;
  color: #64748b;
  text-decoration: none;
  font-size: 13px;
  border-radius: 8px;
}
.back-link:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.btn-logout {
  display: block;
  width: 100%;
  padding: 8px 14px;
  border: none;
  background: none;
  color: #ef4444;
  font-size: 13px;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
}
.btn-logout:hover { background: rgba(239,68,68,.1); }

/* 主区 */
.admin-main {
  flex: 1;
  margin-left: var(--side-w);
  padding: 24px 28px;
}

.panel { display: none; }
.panel.is-on { display: block; }
.panel h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.panel-head h1 { margin-bottom: 0; }

/* 统计卡片 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
}
.stat-card .label { font-size: 13px; color: var(--muted); }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 6px; }
.stat-card .sub { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* 表格 */
.table-wrap {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
thead { background: #f8fafc; }
th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
th { font-weight: 600; color: var(--muted); font-size: 13px; }
td { color: var(--text); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

/* 工具栏 */
.toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.input-search {
  flex: 1;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: var(--card);
}
.input-search:focus { border-color: var(--accent); }
.select-filter {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--card);
  cursor: pointer;
}

/* 按钮 */
.btn-primary {
  padding: 8px 18px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-primary:hover { opacity: .9; }
.btn-sm {
  padding: 4px 12px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  cursor: pointer;
  margin-right: 4px;
}
.btn-sm:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm.danger { color: var(--danger); }
.btn-sm.danger:hover { border-color: var(--danger); }

/* 状态标签 */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
}
.badge-paid { background: rgba(34,197,94,.1); color: var(--ok); }
.badge-pending { background: rgba(245,158,11,.1); color: var(--warn); }
.badge-failed { background: rgba(239,68,68,.1); color: var(--danger); }
.badge-admin { background: rgba(99,102,241,.1); color: var(--accent); }
.badge-user { background: rgba(100,116,139,.1); color: var(--muted); }
.badge-banned { background: rgba(239,68,68,.1); color: var(--danger); }
.badge-open { background: rgba(245,158,11,.12); color: #d97706; }
.badge-done { background: rgba(16,185,129,.12); color: #059669; }
.badge-member { background: rgba(245,158,11,.14); color: #b45309; border: 1px solid rgba(245,158,11,.35); }

/* 设置表单 */
.settings-form fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.settings-form legend {
  font-weight: 600;
  padding: 0 8px;
}
.settings-form label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.settings-form label span {
  width: 120px;
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}
.input-field {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: var(--card);
}
.input-field:focus { border-color: var(--accent); }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* 弹窗 */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.is-on { display: flex; }
.modal {
  background: var(--card);
  border-radius: var(--radius);
  width: 480px;
  max-width: 92vw;
  max-height: 80vh;
  overflow: auto;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-head h3 { font-size: 17px; }
.modal-close {
  border: none;
  background: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}
.modal-body { padding: 20px; }
.modal-body label { display: block; margin-bottom: 14px; }
.modal-body label span { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.modal-body input, .modal-body select, .modal-body textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.modal-body input:focus { border-color: var(--accent); }
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Toast */
.toast-bar {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 200;
  padding: 12px 20px;
  background: #1e293b;
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.toast-bar.is-on { opacity: 1; transform: translateY(0); }
.toast-bar.ok { background: var(--ok); }
.toast-bar.error { background: var(--danger); }

/* 分页 */
.pager {
  display: flex;
  gap: 8px;
  justify-content: center;
  padding: 12px;
}
.pager button {
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  cursor: pointer;
  font-size: 13px;
}
.pager button:disabled { opacity: .4; cursor: default; }
.pager button.is-on { border-color: var(--accent); color: var(--accent); }