/* ==========================================================================
   烟花仓库管理系统 — UI 风格参考建筑项目管理系统
   设计要点：左侧固定侧边栏 + 顶部标题栏 + 白色内容面板
   ========================================================================== */

:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --faint: #9ca3af;
  --line: #e5e7eb;
  --line-strong: #d1d5db;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: rgba(37, 99, 235, 0.08);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.08);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.08);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.08);
  --info: #0ea5e9;
  --info-soft: rgba(14, 165, 233, 0.08);

  --sidebar-width: 248px;
  --topbar-height: 64px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.1);

  --font-sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

button, input, select, textarea {
  font: inherit;
}

/* ---------- 应用外壳 ---------- */
.app-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---------- 侧边栏 ---------- */
.sidebar {
  width: var(--sidebar-width);
  flex: none;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border-right: 1px solid var(--line);
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 72px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  flex: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: #334155;
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 16px;
  flex: none;
}

.brand-text strong,
.brand-text span {
  display: block;
}

.brand-text strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.brand-text span {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.nav-menu {
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px;
}

.nav-group {
  margin-bottom: 4px;
}

.nav-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  color: #374151;
  font-weight: 700;
  font-size: 13px;
  border-radius: var(--radius-sm);
  cursor: default;
}

.nav-group-title .nav-icon {
  width: 18px;
  text-align: center;
  color: var(--muted);
}

.nav-items {
  padding-left: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px 9px 14px;
  color: #4b5563;
  border-radius: var(--radius-sm);
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
  margin-bottom: 2px;
}

.nav-item:hover {
  background: #f3f4f6;
  color: var(--text);
}

.nav-item.active {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
}

.nav-item .nav-icon {
  width: 18px;
  text-align: center;
  font-size: 15px;
}

.sidebar-footer {
  flex: none;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ver-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  flex: none;
}

/* ---------- 主区域 ---------- */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
}

/* ---------- 顶部栏 ---------- */
.topbar {
  height: var(--topbar-height);
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex: none;
}

.breadcrumb {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 2px;
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }

.page-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  background: #f3f4f6;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 600;
}

/* ---------- 主视图 ---------- */
.main-view {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  background: var(--bg);
  min-height: 0;
}

/* ---------- 页面头部 ---------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.page-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-header-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  display: grid;
  place-items: center;
  font-size: 18px;
}

.page-header-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.page-header-sub {
  font-size: 13px;
  color: var(--muted);
  margin: 2px 0 0;
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 13px;
}
.back-link:hover { color: var(--primary); }

/* ---------- 面板卡片（参考 DataTablePanel） ---------- */
.panel {
  background: var(--panel);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  min-height: 56px;
}

.panel-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.panel-subtitle {
  font-size: 12px;
  color: var(--muted);
  margin: 2px 0 0;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-body {
  padding: 16px 20px;
}

.panel-body > .table-responsive {
  margin: -4px -4px;
}

/* ---------- KPI 卡片 ---------- */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 18px;
}

.kpi-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
  box-shadow: var(--shadow-sm);
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.kpi-card.success { border-left: 4px solid var(--success); }
.kpi-card.primary { border-left: 4px solid var(--primary); }
.kpi-card.warning { border-left: 4px solid var(--warning); }
.kpi-card.danger { border-left: 4px solid var(--danger); }
.kpi-card.info { border-left: 4px solid var(--info); }

.kpi-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: 20px;
  flex: none;
}

.kpi-card.success .kpi-icon { background: var(--success-soft); }
.kpi-card.primary .kpi-icon { background: var(--primary-soft); }
.kpi-card.warning .kpi-icon { background: var(--warning-soft); }
.kpi-card.danger .kpi-icon { background: var(--danger-soft); }
.kpi-card.info .kpi-icon { background: var(--info-soft); }

.kpi-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.kpi-body span {
  font-size: 12px;
  color: var(--muted);
}

.kpi-body strong {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-top: 2px;
}

/* ---------- 快捷操作 ---------- */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.quick-btn:hover {
  background: #f9fafb;
  border-color: var(--line-strong);
}

/* ---------- 表格 ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: 0;
}

.table thead th {
  background: #f9fafb;
  color: #4b5563;
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.table tbody td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  vertical-align: middle;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background: #f9fafb;
}

.table tfoot td {
  padding: 12px;
  font-weight: 700;
  background: #f9fafb;
  border-top: 2px solid var(--line);
}

.table-responsive {
  overflow-x: auto;
}

.text-muted { color: var(--muted) !important; }
.text-value { color: var(--text); font-weight: 600; }
.text-up { color: var(--success); }
.text-down { color: var(--danger); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  line-height: 1.4;
}

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

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

.btn-outline-secondary {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--muted);
}
.btn-outline-secondary:hover { background: #f3f4f6; color: var(--text); }

.btn-outline-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn-outline-danger:hover { background: var(--danger-soft); }

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #dc2626; border-color: #dc2626; }

.btn-success {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.btn-success:hover { background: #059669; border-color: #059669; }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 10px 20px; font-size: 14px; }

/* ---------- 表单 ---------- */
.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-control,
.form-select {
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text);
  background: var(--panel);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  outline: none;
}

.form-control::placeholder {
  color: var(--faint);
}

.form-section {
  margin-bottom: 24px;
}

.form-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-box .form-control {
  min-width: 220px;
}

/* ---------- 信息网格 ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-label {
  font-size: 12px;
  color: var(--muted);
}

.info-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

/* ---------- 状态徽章 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.badge-success { background: var(--success-soft); color: #047857; }
.badge-secondary { background: #f3f4f6; color: var(--muted); }
.badge-danger { background: var(--danger-soft); color: #b91c1c; }
.badge-warning { background: var(--warning-soft); color: #92400e; }
.badge-info { background: var(--info-soft); color: #0369a1; }
.badge-light { background: #f3f4f6; color: var(--muted); }

/* ---------- 空状态 ---------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  color: var(--muted);
  text-align: center;
}

.empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-text {
  font-size: 13px;
}

/* ---------- 上传区 ---------- */
.upload-zone {
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  color: var(--muted);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.upload-zone input[type="file"] {
  display: none;
}

.upload-icon { display: block; font-size: 36px; margin-bottom: 8px; }
.upload-text { display: block; font-size: 15px; font-weight: 500; color: var(--text); }
.upload-hint { display: block; font-size: 12px; margin-top: 4px; }

.step-list {
  margin-top: 24px;
  padding-left: 20px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 登录页 ---------- */
.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eef2f6 0%, #f6f7f9 100%);
  padding: 24px;
}

.login-panel {
  display: flex;
  width: 880px;
  max-width: 100%;
  background: var(--panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.login-copy {
  flex: 1;
  padding: 48px;
  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-copy .eyebrow {
  font-size: 12px;
  opacity: 0.8;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.login-copy h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 16px;
}

.login-copy p {
  font-size: 14px;
  opacity: 0.9;
  margin: 0;
  line-height: 1.6;
}

.login-form {
  width: 360px;
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-form-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}

.login-form .form-control {
  padding: 10px 12px;
}

.login-form .btn-primary {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
}

/* ---------- 提示消息 ---------- */
.alert {
  border-radius: var(--radius-md);
  font-size: 13px;
  padding: 12px 16px;
  border: 1px solid transparent;
}

.alert-success { background: var(--success-soft); color: #047857; border-color: rgba(16, 185, 129, 0.2); }
.alert-danger { background: var(--danger-soft); color: #b91c1c; border-color: rgba(239, 68, 68, 0.2); }
.alert-warning { background: var(--warning-soft); color: #92400e; border-color: rgba(245, 158, 11, 0.2); }
.alert-info { background: var(--info-soft); color: #0369a1; border-color: rgba(14, 165, 233, 0.2); }

/* ---------- 响应式 ---------- */
@media (max-width: 991px) {
  .sidebar { display: none; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .topbar { padding: 0 16px; }
  .main-view { padding: 16px; }
  .kpi-row { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; }
  .login-panel { flex-direction: column; }
  .login-copy { padding: 32px; }
  .login-form { width: 100%; padding: 32px; }
}