/* ============================================
   客户管理系统 - 全局样式
   简洁 · 大方 · 专业
   ============================================ */

:root {
  --primary:     #4361ee;
  --primary-dark:#3a56d4;
  --success:     #2ec4b6;
  --warning:     #f4a261;
  --danger:      #e63946;
  --info:        #4cc9f0;
  --secondary:   #adb5bd;
  --dark:        #1a1a2e;
  --sidebar-bg:  #16213e;
  --sidebar-w:   240px;
  --header-h:    60px;
  --body-bg:     #f0f2f5;
  --card-bg:     #ffffff;
  --text:        #333;
  --text-muted:  #888;
  --border:      #e8ecf0;
  --radius:      8px;
  --shadow:      0 2px 12px rgba(0,0,0,.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--body-bg);
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---- Layout ---- */
.wrapper { display: flex; min-height: 100vh; }

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform .3s;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo .logo-icon {
  width: 34px; height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}

.sidebar-logo .logo-text {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
}

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-group-title {
  color: rgba(255,255,255,.35);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 16px 20px 6px;
}

.nav-item { display: block; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: rgba(255,255,255,.65);
  font-size: 14px;
  transition: all .2s;
  border-left: 3px solid transparent;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255,255,255,.08);
  border-left-color: var(--primary);
}

.nav-link .icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.user-avatar {
  width: 34px; height: 34px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.user-info .name { color: #fff; font-size: 13px; font-weight: 500; }
.user-info .role { color: rgba(255,255,255,.4); font-size: 11px; }

.logout-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.5);
  font-size: 13px;
  padding: 6px 0;
  transition: color .2s;
}
.logout-btn:hover { color: var(--danger); }

/* ---- Main ---- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---- Header ---- */
.page-header {
  height: var(--header-h);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-header .page-title { font-size: 16px; font-weight: 600; }
.page-header .breadcrumb { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.toggle-btn {
  display: none;
  background: none; border: none;
  font-size: 20px; cursor: pointer;
  color: var(--text);
  padding: 4px 8px;
}

/* ---- Content ---- */
.content-area { padding: 24px; flex: 1; }

/* ---- Alert ---- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
}
.alert-success  { background: #d1fae5; color: #065f46; }
.alert-danger   { background: #fee2e2; color: #991b1b; }
.alert-warning  { background: #fef3c7; color: #92400e; }
.alert-info     { background: #dbeafe; color: #1e40af; }

/* ---- Card ---- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 20px;
}

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

.card-header h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.card-body { padding: 20px; }

/* ---- Stats Grid ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.stat-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.blue   { background: #eff6ff; }
.stat-icon.green  { background: #f0fdf4; }
.stat-icon.orange { background: #fff7ed; }
.stat-icon.purple { background: #faf5ff; }
.stat-icon.cyan   { background: #ecfeff; }

.stat-info .value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.stat-info .label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

table thead th {
  background: #f8f9fb;
  padding: 11px 14px;
  text-align: left;
  font-weight: 600;
  color: #555;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

table tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

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

/* ---- Badge / Status ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-warning   { background: #fef3c7; color: #d97706; }
.badge-info      { background: #dbeafe; color: #2563eb; }
.badge-success   { background: #d1fae5; color: #059669; }
.badge-secondary { background: #f1f5f9; color: #64748b; }
.badge-danger    { background: #fee2e2; color: #dc2626; }
.badge-primary   { background: #eff6ff; color: #2563eb; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s;
  line-height: 1;
  white-space: nowrap;
}

.btn-sm { padding: 5px 12px; font-size: 12.5px; }
.btn-xs { padding: 3px 9px; font-size: 12px; }

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

.btn-success   { background: var(--success); color: #fff; border-color: var(--success); }
.btn-success:hover { opacity: .88; color: #fff; }

.btn-warning   { background: var(--warning); color: #fff; border-color: var(--warning); }
.btn-warning:hover { opacity: .88; color: #fff; }

.btn-danger    { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { opacity: .88; color: #fff; }

.btn-secondary { background: #f1f5f9; color: #555; border-color: var(--border); }
.btn-secondary:hover { background: #e2e8f0; color: #333; }

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

.btn-group { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---- Forms ---- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #555;
  margin-bottom: 6px;
}

.form-group label .required { color: var(--danger); margin-left: 2px; }

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67,97,238,.12);
}

.form-control:disabled,
.form-control[readonly] {
  background: #f8f9fb;
  color: #999;
  cursor: not-allowed;
}

select.form-control { appearance: none; cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.form-actions {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: center;
}

/* ---- Toolbar ---- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.toolbar-left  { flex: 1; display: flex; gap: 8px; flex-wrap: wrap; }
.toolbar-right { display: flex; gap: 8px; }

.search-box {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  min-width: 220px;
}

.search-box input {
  flex: 1;
  border: none;
  padding: 8px 12px;
  font-size: 13.5px;
  outline: none;
  background: transparent;
}

.search-box button {
  background: none;
  border: none;
  padding: 0 12px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 15px;
}

.filter-select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13.5px;
  background: #fff;
  outline: none;
  color: var(--text);
  cursor: pointer;
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 20px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
  background: #fff;
  padding: 0 8px;
  transition: all .2s;
  cursor: pointer;
  text-decoration: none;
}

.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn.disabled { color: var(--text-muted); pointer-events: none; background: #f8f9fb; }

.page-info { font-size: 12px; color: var(--text-muted); margin-right: 8px; }

/* ---- Empty state ---- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* ---- Detail Panel ---- */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.detail-item label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.detail-item .value {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

/* ---- Permission Checkboxes ---- */
.perm-group {
  margin-bottom: 20px;
}

.perm-group-title {
  font-size: 13px;
  font-weight: 600;
  color: #555;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.perm-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.perm-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  transition: all .2s;
  font-size: 13px;
  background: #fff;
  user-select: none;
}

.perm-item:hover { border-color: var(--primary); color: var(--primary); }

.perm-item input[type=checkbox] { display: none; }

.perm-item.checked {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ---- Login Page ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.login-card {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo .icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin: 0 auto 12px;
  box-shadow: 0 8px 20px rgba(67,97,238,.35);
}

.login-logo h1 { font-size: 20px; font-weight: 700; color: var(--text); }
.login-logo p  { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .toggle-btn { display: flex; }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar-left, .toolbar-right { width: 100%; }
  .content-area { padding: 16px; }
}