/* ────────────────────────────────────────────────────────────
   智能推送 · 管理后台样式
   浅色主题，桌面端优先（鼠标 + 键盘），按钮一律不截断
   ──────────────────────────────────────────────────────────── */

:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --text: #1f2937;
  --text-2: #6b7280;
  --text-3: #9ca3af;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff6ff;
  --success: #059669;
  --success-soft: #ecfdf5;
  --warning: #d97706;
  --warning-soft: #fffbeb;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.16);
  --sidebar-w: 216px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; }
p { margin: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── 布局 ──────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  padding: 18px 18px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex: 0 0 32px;
}

.brand-text { line-height: 1.25; }
.brand-text strong { display: block; font-size: 15px; }
.brand-text span { font-size: 11px; color: var(--text-3); letter-spacing: 0.4px; }

.nav { padding: 10px 10px; flex: 1; overflow-y: auto; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  margin-bottom: 2px;
  transition: background 0.12s, color 0.12s;
}

.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav-icon { width: 18px; text-align: center; font-size: 15px; flex: 0 0 18px; }

.sidebar-foot {
  padding: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-3);
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 58px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.page-title { font-size: 17px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.content { padding: 22px; flex: 1; }

/* ── 通用组件 ──────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card + .card { margin-top: 16px; }

.card-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.card-title { font-size: 15px; font-weight: 600; }
.card-sub { font-size: 12px; color: var(--text-3); font-weight: 400; margin-left: 8px; }
.card-body { padding: 18px; }
.card-body.flush { padding: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.btn:hover { background: var(--surface-2); border-color: #b9bfc9; }
.btn:active { transform: translateY(0.5px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn-danger { color: var(--danger); border-color: #f3c1c1; background: var(--danger-soft); }
.btn-danger:hover { background: #fde8e8; border-color: #eaa9a9; }

.btn-ghost { border-color: transparent; background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; border-radius: 7px; }

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* 表单 */
.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }

.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 5px;
}

.field .hint { font-size: 11.5px; color: var(--text-3); margin-top: 4px; }

input[type="text"], input[type="password"], input[type="number"],
input[type="url"], input[type="date"], input[type="time"],
select, textarea {
  width: 100%;
  height: 36px;
  padding: 0 11px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}

textarea { height: auto; padding: 9px 11px; resize: vertical; min-height: 68px; }

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.field-row { display: flex; gap: 12px; }
.field-row > .field { flex: 1; margin-bottom: 14px; }

.checkbox { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-2); cursor: pointer; }
.checkbox input { width: 15px; height: 15px; accent-color: var(--primary); cursor: pointer; }

/* 表格 */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }

thead th {
  text-align: left;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid #f1f3f5;
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfc; }

.row-actions { display: flex; gap: 6px; white-space: nowrap; }

/* 徽标 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 22px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-online { background: var(--success-soft); color: var(--success); }
.badge-offline { background: #f3f4f6; color: var(--text-3); }
.badge-info { background: var(--primary-soft); color: var(--primary); }
.badge-warn { background: var(--warning-soft); color: var(--warning); }
.badge-muted { background: #f3f4f6; color: var(--text-2); }

/* 统计卡 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 15px 17px;
  box-shadow: var(--shadow-sm);
}

.stat-label { font-size: 12px; color: var(--text-3); margin-bottom: 6px; }
.stat-value { font-size: 24px; font-weight: 650; letter-spacing: -0.5px; line-height: 1.2; }
.stat-unit { font-size: 12px; font-weight: 400; color: var(--text-3); margin-left: 7px; }

/* 空状态 */
.empty {
  padding: 44px 20px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

.empty-icon { font-size: 30px; opacity: 0.45; margin-bottom: 8px; }

/* 模态框 */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.42);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 100;
  animation: fade 0.14s ease;
}

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  animation: pop 0.16s ease;
}

.modal.wide { max-width: 720px; }

@keyframes pop {
  from { transform: translateY(8px) scale(0.985); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.modal-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title { font-size: 15.5px; font-weight: 600; }
.modal-close {
  border: none;
  background: none;
  font-size: 20px;
  line-height: 1;
  color: var(--text-3);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}
.modal-close:hover { background: var(--surface-2); color: var(--text); }

.modal-body { padding: 18px 20px; overflow-y: auto; }
.modal-foot {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 9px;
}

/* Toast */
.toast-wrap {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  padding: 9px 16px;
  border-radius: 9px;
  background: #1f2937;
  color: #fff;
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.18s ease;
  max-width: 70vw;
}

.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }

@keyframes toastIn {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: none; opacity: 1; }
}

/* 登录页 */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, #f4f6f9 0%, #eaf0fb 100%);
}

.login-card {
  width: 100%;
  max-width: 372px;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 30px 28px;
}

.login-title { font-size: 19px; font-weight: 650; margin-bottom: 4px; }
.login-sub { font-size: 13px; color: var(--text-3); margin-bottom: 22px; }

/* 拖拽排序 */
.drag-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  margin-bottom: 7px;
  cursor: grab;
}

.drag-item.dragging { opacity: 0.4; }
.drag-item.drag-over { border-color: var(--primary); background: var(--primary-soft); }
.drag-handle { color: var(--text-3); cursor: grab; font-size: 15px; }

/* 杂项 */
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.muted { color: var(--text-3); }
.text-sm { font-size: 12.5px; }
.mt-0 { margin-top: 0; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.truncate { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.progress {
  height: 5px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 6px;
}
.progress-bar { height: 100%; background: var(--primary); transition: width 0.2s; }

.tag-day {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-2);
  margin-right: 3px;
}

@media (max-width: 860px) {
  .sidebar { position: fixed; left: -100%; transition: left 0.2s; z-index: 50; }
  .sidebar.open { left: 0; }
  .content { padding: 14px; }
}