/* ===== FinFlow · 现代科技风视觉系统 ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.4);
  --accent: #06b6d4;
  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --sidebar-bg: #0f172a;
  --sidebar-bg2: #1e293b;
  --sidebar-text: #94a3b8;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px -8px rgba(15, 23, 42, 0.18), 0 4px 12px -4px rgba(15, 23, 42, 0.08);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 16px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  transition: all var(--transition);
}
.btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 2px 8px -2px var(--primary-glow);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px -2px var(--primary-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: #fff;
  box-shadow: 0 6px 18px -2px var(--primary-glow);
  transform: translateY(-1px);
}
.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
  color: #fff;
  border-color: transparent;
}
.btn-danger:hover {
  background: linear-gradient(135deg, #f87171 0%, var(--danger) 100%);
  color: #fff;
}
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-link {
  border: none;
  background: none;
  color: var(--primary);
  padding: 0 6px;
  cursor: pointer;
  font-weight: 500;
  transition: color var(--transition);
}
.btn-link:hover { color: var(--primary-dark); text-decoration: underline; }

/* ===== 表单 ===== */
input, select, textarea {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
  background: var(--bg-elevated);
  color: var(--text);
  transition: all var(--transition);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ===== 表格 ===== */
table { width: 100%; border-collapse: collapse; background: var(--bg-elevated); }
th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 13px;
}
tr:hover { background: #f8fafc; }

/* ===== 状态标签 ===== */
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.tag-draft { background: #f1f5f9; color: #64748b; }
.tag-confirmed, .tag-approved, .tag-paid { background: #ecfdf5; color: var(--success); }
.tag-leader_review, .tag-finance_review, .tag-cashier_pay { background: #eef2ff; color: var(--primary); }
.tag-rejected { background: #fef2f2; color: var(--danger); }
.tag-active { background: #eef2ff; color: var(--primary); }
.tag-finished { background: #ecfdf5; color: var(--success); }
.tag-pending { background: #fffbeb; color: var(--warning); }

/* ===== 登录页 ===== */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
  position: relative;
  overflow: hidden;
}
.login-wrap::before {
  content: '';
  position: absolute;
  top: -200px; left: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, transparent 70%);
  filter: blur(40px);
  animation: floatBlob 8s ease-in-out infinite;
}
.login-wrap::after {
  content: '';
  position: absolute;
  bottom: -200px; right: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
  filter: blur(40px);
  animation: floatBlob 10s ease-in-out infinite reverse;
}
@keyframes floatBlob {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}
.login-box {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 44px 40px 36px;
  border-radius: var(--radius-lg);
  width: 400px;
  box-shadow: 0 24px 64px -12px rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.login-box h2 {
  text-align: center;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.login-box .subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 12px;
  margin-bottom: 28px;
  letter-spacing: 1.5px;
}
.login-box .form-row { margin-bottom: 16px; }
.login-box input { width: 100%; padding: 11px 14px; }
.login-box .btn { width: 100%; padding: 11px; font-weight: 600; margin-top: 4px; }

/* ===== 主布局 ===== */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 232px;
  background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg2) 100%);
  color: #fff;
  flex-shrink: 0;
  position: relative;
  box-shadow: 4px 0 24px -8px rgba(0, 0, 0, 0.2);
}
.sidebar .logo {
  padding: 22px 20px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  text-align: center;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar .logo::after {
  content: '';
  position: absolute;
  left: 24px; right: 24px; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}
.sidebar .menu-list {
  padding: 8px 0 16px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.sidebar .menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 24px;
  color: var(--sidebar-text);
  cursor: pointer;
  font-weight: 500;
  position: relative;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  user-select: none;
}
.sidebar .menu-item:hover {
  background: rgba(99, 102, 241, 0.1);
  color: #fff;
  border-left-color: var(--primary-light);
}
.sidebar .menu-item.active {
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.2) 0%, transparent 100%);
  color: #fff;
  border-left-color: var(--primary);
}
.sidebar .menu-item.active::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: var(--primary);
  border-radius: 3px 0 0 3px;
  box-shadow: 0 0 12px var(--primary-glow);
}
.sidebar .menu-icon {
  display: inline-block;
  width: 18px;
  text-align: center;
  color: var(--primary-light);
  font-size: 14px;
  flex-shrink: 0;
}
.sidebar .menu-group { margin-top: 4px; }
.sidebar .menu-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 24px 8px;
  color: #64748b;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  user-select: none;
  transition: color var(--transition);
}
.sidebar .menu-group-header:hover { color: #cbd5e1; }
.sidebar .menu-group-name { flex: 1; }
.sidebar .menu-arrow {
  font-size: 10px;
  color: #64748b;
  transition: transform var(--transition);
}
.sidebar .menu-arrow.collapsed { transform: rotate(-90deg); }
.sidebar .menu-children { padding-bottom: 4px; }
.sidebar .menu-item.sub {
  padding: 10px 24px 10px 52px;
  font-weight: 400;
  font-size: 13px;
  color: #94a3b8;
}
.sidebar .menu-item.sub:hover { color: #fff; }
.sidebar .menu-item.sub.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.25) 0%, transparent 100%);
  border-left-color: var(--primary);
}

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 60px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .user-info { color: var(--text-muted); font-size: 13px; }
.topbar .user-info a { margin-left: 16px; }
.content {
  flex: 1;
  padding: 24px;
  overflow: auto;
  background: var(--bg);
}
.page-title {
  font-size: 22px;
  margin-bottom: 20px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.3px;
}
.card {
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; color: var(--text-muted); font-weight: 500; }
.form-row input, .form-row select, .form-row textarea { width: 100%; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.modal h3 { margin-bottom: 18px; font-size: 18px; font-weight: 700; }
.modal-footer { text-align: right; margin-top: 20px; }
.modal-footer .btn { margin-left: 10px; }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px 24px; margin-bottom: 16px; }
.detail-item { color: var(--text-muted); }
.detail-item b { color: var(--text); margin-right: 8px; font-weight: 600; }
.timeline { border-left: 2px solid var(--border); padding-left: 18px; margin-top: 12px; }
.timeline-item { margin-bottom: 12px; position: relative; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}
.metric-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.metric-card {
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.metric-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.metric-card .num {
  font-size: 32px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}
.metric-card .lbl { color: var(--text-light); margin-top: 8px; font-size: 13px; }
.empty { text-align: center; padding: 60px 20px; color: var(--text-light); }

@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar .logo { font-size: 14px; padding: 16px 4px; }
  .sidebar .menu-item { padding: 12px 8px; font-size: 12px; text-align: center; }
}

/* 滚动条美化 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }