/* ============================================================
   境外旅行社 B2B 报价平台 —— 设计系统（最小版）
   布局：左侧栏 + 顶栏 + 面包屑 + 内容区；768px 以下侧栏折叠、表单单列
   ============================================================ */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --green: #16a34a;
  --green-dark: #15803d;
  --gray: #6b7280;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --danger-text: #b91c1c;
  --success-bg: #dcfce7;
  --success-text: #15803d;
  --warning-bg: #fef3c7;
  --warning-text: #b45309;
  --info-bg: #dbeafe;
  --info-text: #1d4ed8;
  --sidebar-bg: #1f2937;
  --sidebar-hover: #374151;
  --sidebar-active: #111827;
  --sidebar-text: #d1d5db;
  --sidebar-text-active: #ffffff;
  --sidebar-width: 240px;
  --topbar-height: 56px;
  --radius: 8px;
  --shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

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

h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 17px; margin: 0 0 12px; }

/* ---------------- 应用外壳 ---------------- */
.app { min-height: 100vh; }

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  z-index: 40;
  transition: transform 0.2s ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--topbar-height);
  padding: 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  font-weight: 700;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
}

.brand-name { font-size: 15px; }

.nav { flex: 1; overflow-y: auto; padding: 12px 0; }

.nav-section {
  padding: 10px 18px 4px;
  font-size: 12px;
  color: #9ca3af;
  letter-spacing: 1px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  color: var(--sidebar-text);
  text-decoration: none;
  border-left: 3px solid transparent;
}

.nav-link:hover { background: var(--sidebar-hover); color: #fff; text-decoration: none; }

.nav-link.active {
  background: var(--sidebar-active);
  color: var(--sidebar-text-active);
  border-left-color: var(--primary);
  font-weight: 600;
}

.nav-icon { width: 18px; text-align: center; opacity: 0.85; }

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 30;
  display: none;
}
.sidebar-overlay.show { display: block; }

.main { margin-left: var(--sidebar-width); min-height: 100vh; display: flex; flex-direction: column; }

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

.topbar-left, .topbar-right { display: flex; align-items: center; gap: 12px; }

.page-title { font-size: 16px; font-weight: 600; }

.user-chip { color: var(--muted); font-size: 13px; }

.icon-btn {
  display: none;
  border: 0;
  background: transparent;
  font-size: 20px;
  cursor: pointer;
  color: var(--text);
  padding: 4px 8px;
  border-radius: 6px;
}

/* ---------------- 面包屑 ---------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px 0;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb .sep { color: #d1d5db; }

/* ---------------- 内容区 ---------------- */
.content { flex: 1; padding: 16px 20px 40px; max-width: 1200px; width: 100%; }

.bare { padding: 24px; }

/* ---------------- 卡片 ---------------- */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 16px;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  font-family: inherit;
}
.btn:hover { text-decoration: none; }

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

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

.btn-gray { background: var(--gray); color: #fff; }

.btn-danger { background: var(--danger); color: #fff; }

.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg); }

/* ---------------- 徽章 ---------------- */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: #eef2ff;
  color: var(--primary);
  white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger-text); }
.badge-muted   { background: #f3f4f6;           color: var(--muted); }

/* ---------------- 表格 ---------------- */
.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--border); padding: 8px 10px; font-size: 14px; text-align: left; }
th { background: #f3f4f6; font-weight: 600; white-space: nowrap; }

/* ---------------- 表单 ---------------- */
.form-row { margin-bottom: 12px; }
label { display: block; margin-bottom: 4px; font-size: 13px; color: var(--muted); }
input, textarea, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }

.muted { color: var(--muted); font-size: 13px; }

/* ---------------- 提示消息 ---------------- */
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; }
.flash-error   { background: var(--danger-bg);  color: var(--danger-text); }
.flash-success { background: var(--success-bg); color: var(--success-text); }
.flash-warning { background: var(--warning-bg); color: var(--warning-text); }
.flash-info    { background: var(--info-bg);    color: var(--info-text); }

/* ---------------- 空状态 ---------------- */
.empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--muted);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .icon-btn { display: inline-flex; }
  .topbar { padding: 0 12px; }
  .content { padding: 12px 12px 32px; }
  .grid2, .form-grid { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
  .user-chip { display: none; }
}
/* ---------------- 城市列表（新建项目向导） ---------------- */
.city-row { display: flex; gap: 6px; margin-bottom: 6px; align-items: center; }
.city-row .city-input { flex: 1; }
.city-row .btn { padding: 8px 10px; line-height: 1; }
/* ---------------- 标签页 ---------------- */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 16px; border-bottom: 1px solid var(--border); }
.tab { padding: 9px 16px; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; }
.tab:hover { color: var(--text); text-decoration: none; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

.inline-edit { display: inline-block; vertical-align: middle; }
.inline-edit summary { list-style: none; }
.inline-edit summary::-webkit-details-marker { display: none; }
/* ============================================================
   组件库扩展：按钮/徽章/弹窗/加载/工具类等
   ============================================================ */

/* ---------------- 按钮扩展 ---------------- */
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: #eff6ff; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-lg { padding: 11px 20px; font-size: 16px; }
.btn-block { display: block; width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------------- 徽章 ---------------- */
.badge-info { background: var(--info-bg); color: var(--info-text); }

/* ---------------- 卡片 ---------------- */
.card-header { padding: 14px 20px; border-bottom: 1px solid var(--border); font-weight: 600; }
.card-footer { padding: 14px 20px; border-top: 1px solid var(--border); background: #fafafa; }

/* ---------------- 表格 ---------------- */
.table-striped tbody tr:nth-child(even) { background: #fafafa; }
.table-hover tbody tr:hover { background: #f3f4f6; }

/* ---------------- 表单 ---------------- */
.form-help { font-size: 12px; color: var(--muted); margin-top: 4px; }
.field-required::after { content: " *"; color: var(--danger); }
input.is-invalid, textarea.is-invalid, select.is-invalid { border-color: var(--danger); }

/* ---------------- 弹窗 ---------------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45);
  display: none; align-items: flex-start; justify-content: center;
  padding: 48px 16px; z-index: 60; overflow-y: auto;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff; border-radius: 10px; width: 100%; max-width: 520px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header h3 { margin: 0; font-size: 16px; }
.modal-body { padding: 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--border); }
.modal-close { border: 0; background: transparent; font-size: 20px; cursor: pointer; color: var(--muted); }

/* ---------------- 加载状态 ---------------- */
.spinner {
  display: inline-block; width: 22px; height: 22px; border-radius: 50%;
  border: 3px solid rgba(0, 0, 0, 0.12); border-top-color: var(--primary);
  animation: spin 0.7s linear infinite; vertical-align: middle;
}
.spinner-lg { width: 34px; height: 34px; border-width: 4px; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-mask {
  display: none; align-items: center; justify-content: center; gap: 10px;
  padding: 24px; color: var(--muted); text-align: center;
}
.loading-mask.show { display: flex; }

/* ---------------- 空状态 ---------------- */
.empty-icon { font-size: 40px; line-height: 1; margin-bottom: 8px; }

/* ---------------- 工具类 ---------------- */
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success-text); }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; }