/* ============================================================
   AI 发饰工坊 ERP V6.0 - AI风·智能风·年轻化
   设计系统 CSS
   ============================================================ */

/* ==================== 设计令牌 ==================== */
:root {
  /* 品牌渐变色 - 紫蓝青渐变（AI感） */
  --primary-start: #7C3AED;
  --primary-mid: #3B82F6;
  --primary-end: #06B6D4;
  --brand-gradient: linear-gradient(135deg, #7C3AED 0%, #3B82F6 50%, #06B6D4 100%);
  --brand-gradient-soft: linear-gradient(135deg, #EDE9FE 0%, #DBEAFE 50%, #CFFAFE 100%);

  /* 功能色 - 更明亮年轻 */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --info: #3B82F6;
  --status-muted: #94A3B8;   /* 终态/完成态灰（石板灰，冷调配 v6 主色） */

  /* 年轻化中性色 */
  --bg-app: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-sidebar: #0F172A;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-inverse: #FFFFFF;
  --border: #E2E8F0;

  /* 圆角 - 更圆润 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* 阴影 - 更自然 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 20px rgba(124,58,237,0.15);

  /* 过渡 */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s var(--ease-smooth);
  --transition-bounce: 0.35s var(--ease-spring);

  /* 字体 */
  --font-sans: 'Inter', 'PingFang SC', 'Noto Sans SC', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ==================== 全局基础 ==================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ==================== 侧边栏（深色毛玻璃感） ==================== */
.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: 240px; height: 100vh;
  background: var(--bg-sidebar);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: width var(--transition-fast);
  overflow: hidden;
}

.sidebar.collapsed { width: 64px; }

.sidebar-brand {
  padding: 20px 16px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  min-height: 64px;
}

.sidebar-logo {
  width: 32px; height: 32px;
  background: var(--brand-gradient);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}

.sidebar-brand-text {
  color: white;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 1;
  transition: opacity 0.2s;
}

.sidebar.collapsed .sidebar-brand-text { opacity: 0; width: 0; overflow: hidden; }

.sidebar-menu {
  flex: 1;
  padding: 8px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 2px;
}

.menu-section-title {
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  padding: 16px 12px 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .menu-section-title { display: none; }

.menu-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 14px;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  overflow: hidden;
}

.menu-item:hover {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.9);
}

.menu-item.active {
  background: rgba(124,58,237,0.2);
  color: white;
}

.menu-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 20px;
  background: var(--brand-gradient);
  border-radius: 0 3px 3px 0;
}

.menu-icon {
  font-size: 18px;
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.sidebar.collapsed .menu-text { display: none; }

/* ==================== 侧边栏二级导航（子菜单） ==================== */
.menu-group { display: flex; flex-direction: column; }
.menu-caret {
  margin-left: auto;
  font-size: 9px;
  line-height: 1;
  color: rgba(255,255,255,0.4);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}
.menu-group.open .menu-caret { transform: rotate(0deg); }
.sub-menu {
  display: none;
  flex-direction: column;
  padding-left: 36px;   /* 与父项图标对齐缩进 */
  margin: 1px 0 2px;
}
.menu-group.open .sub-menu { display: flex; }
.sub-item {
  display: flex; align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 13px;
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
  overflow: hidden;
}
.sub-item:hover { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.9); }
.sub-item.active { background: rgba(124,58,237,0.2); color: white; }
.sub-item.active::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 16px; background: var(--brand-gradient); border-radius: 0 3px 3px 0;
}
/* 折叠态隐藏二级与 caret（无文字空间） */
.sidebar.collapsed .sub-menu { display: none !important; }
.sidebar.collapsed .menu-caret { display: none; }

/* 侧边栏折叠按钮 */
.sidebar-toggle {
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}
.sidebar-toggle:hover { color: rgba(255,255,255,0.8); }
.sidebar.collapsed .sidebar-toggle { transform: rotate(180deg); }

/* 侧边栏用户信息 */
.sidebar-footer {
  padding: 8px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.sidebar-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  padding: 4px 0;
}
.sidebar-user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #534AB7; color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; flex-shrink: 0;
}
.sidebar-user-name {
  color: rgba(255,255,255,0.85);
  font-size: 13px; font-weight: 500;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sidebar-user-notif {
  margin-left: auto;
  background: none; border: none; font-size: 16px; cursor: pointer;
  color: rgba(255,255,255,0.5);
  transition: color 0.15s;
}
.sidebar-user-notif:hover { color: #fff; }

/* ==================== 顶部导航栏 ==================== */
.topbar {
  position: fixed;
  left: 240px; top: 0; right: 0;
  height: 56px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  z-index: 90;
  transition: left var(--transition-fast);
}

.sidebar.collapsed ~ .topbar { left: 64px; }

.topbar-left {
  display: flex; align-items: center; gap: 16px;
}

.page-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

.topbar-right {
  display: flex; align-items: center; gap: 8px;
}

/* 搜索框 - 圆润风格 */
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 7px 16px;
  width: 240px;
  transition: all var(--transition-fast);
}
.search-box:focus-within {
  border-color: var(--primary-mid);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
  background: white;
}
.search-box input {
  border: none; outline: none;
  background: transparent;
  font-size: 13px;
  flex: 1;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

/* 图标按钮 */
.icon-btn {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}
.icon-btn:hover { background: var(--bg-app); color: var(--text-primary); }

.icon-btn .badge {
  position: absolute;
  top: 4px; right: 4px;
  width: 8px; height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid white;
}

/* 用户头像 */
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124,58,237,0.2);
}

/* ==================== 主内容区 ==================== */
.main-content {
  margin-left: 240px;
  padding: 24px;
  min-height: 100vh;
  transition: margin-left var(--transition-fast);
}

.sidebar.collapsed ~ .main-content { margin-left: 64px; }

/* ==================== 统一应用外壳（全局注入式侧边栏） ==================== */
/* 折叠态以 body.sidebar-collapsed 为主，兼容各页面头部 .topbar 与 .header */
body.sidebar-collapsed .sidebar { width: 64px; }
body.sidebar-collapsed .sidebar .sidebar-brand-text,
body.sidebar-collapsed .sidebar .menu-section-title,
body.sidebar-collapsed .sidebar .menu-text { display: none; }
body.sidebar-collapsed .sidebar .sidebar-user-name,
body.sidebar-collapsed .sidebar .sidebar-user-notif { display: none; }
body.sidebar-collapsed .sidebar .sidebar-user-info { justify-content: center; margin-bottom: 4px; }
body.sidebar-collapsed .sidebar .sidebar-toggle { transform: rotate(180deg); }
body.sidebar-collapsed .main-content { margin-left: 64px; }
body.sidebar-collapsed .topbar,
body.sidebar-collapsed .header { left: 64px; }

/* 兼容仍保留真实 .sidebar 直接兄弟选择器的旧页面 */
.sidebar.collapsed ~ .header { left: 64px; }

/* ==================== 统计卡片（AI风渐变） ==================== */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all var(--transition-bounce);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.stat-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.stat-card:hover::before { opacity: 1; }

.stat-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}

.stat-card-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}

.stat-card-icon.blue   { background: #EFF6FF; color: #3B82F6; }
.stat-card-icon.green  { background: #F0FDF4; color: #10B981; }
.stat-card-icon.orange { background: #FFF7ED; color: #F59E0B; }
.stat-card-icon.purple { background: #F5F3FF; color: #7C3AED; }

.stat-card-trend {
  font-size: 12px;
  font-weight: 500;
  display: flex; align-items: center; gap: 3px;
}
.stat-card-trend.up   { color: #10B981; }
.stat-card-trend.down { color: #EF4444; }

.stat-card-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.stat-card-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==================== 模块卡片（年轻化渐变背景） ==================== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.module-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-bounce);
  position: relative;
  overflow: hidden;
}

.module-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0;
  background: var(--brand-gradient-soft);
  transition: height 0.3s var(--ease-smooth);
  z-index: 0;
}

.module-card:hover::after { height: 100%; }
.module-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(124,58,237,0.2);
}

.module-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-xl);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 14px;
  position: relative; z-index: 1;
  transition: transform var(--transition-bounce);
}

.module-card:hover .module-icon { transform: scale(1.1); }

.module-icon.purple { background: linear-gradient(135deg, #EDE9FE, #DDD6FE); }
.module-icon.blue   { background: linear-gradient(135deg, #DBEAFE, #BFDBFE); }
.module-icon.green  { background: linear-gradient(135deg, #DCFCE7, #BBF7D0); }
.module-icon.orange { background: linear-gradient(135deg, #FFEDD5, #FED7AA); }
.module-icon.cyan   { background: linear-gradient(135deg, #CFFAFE, #A5F3FC); }
.module-icon.pink   { background: linear-gradient(135deg, #FCE7F3, #FBCFE8); }

.module-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  position: relative; z-index: 1;
}

.module-desc {
  font-size: 12px;
  color: var(--text-secondary);
  position: relative; z-index: 1;
}

/* ==================== 快捷操作按钮 ==================== */
.quick-actions {
  display: flex; gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.quick-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  font-weight: 500;
}
.quick-btn:hover {
  background: var(--brand-gradient-soft);
  border-color: rgba(124,58,237,0.2);
  color: var(--primary-start);
}
.quick-btn .btn-icon { font-size: 16px; }

/* ==================== 卡片通用 ==================== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}

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

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

.card-body { padding: 20px; }

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background: var(--brand-gradient);
  color: white;
  box-shadow: 0 2px 8px rgba(124,58,237,0.25);
}
.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(124,58,237,0.35);
  transform: translateY(-1px);
}

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

/* ==================== 表单 ==================== */
.form-input {
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: var(--font-sans);
  background: var(--bg-card);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  outline: none;
  width: 100%;
}
.form-input:focus {
  border-color: var(--primary-mid);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

/* ==================== 登录页背景动画 ==================== */
.login-bg-ai {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 40%, #312E81 70%, #0F172A 100%);
  overflow: hidden;
}

/* 动态光点 */
.login-bg-ai::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  top: -200px; right: -200px;
  animation: floatGlow 8s ease-in-out infinite;
}

.login-bg-ai::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  animation: floatGlow 10s ease-in-out infinite reverse;
}

@keyframes floatGlow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .sidebar { width: 64px; }
  .sidebar .menu-text,
  .sidebar .sidebar-brand-text,
  .sidebar .menu-section-title { display: none; }
  .sidebar .sub-menu,
  .sidebar .menu-caret { display: none; }
  .topbar { left: 64px; }
  .main-content { margin-left: 64px; }
  .stat-cards { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}