*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #875A7B; --primary-dark: #6b4562; --secondary: #00A09D; --accent: #F06050;
  --sidebar-bg: #2C2C2C; --sidebar-width: 240px; --sidebar-collapsed: 60px;
  --topbar-height: 56px; --text-primary: #1a1a1a; --text-secondary: #6c757d;
  --text-muted: #adb5bd; --border: #e9ecef; --bg-light: #f8f9fa; --bg-white: #ffffff;
  --success: #28a745; --warning: #ffc107; --danger: #dc3545; --info: #17a2b8;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08); --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --radius: 6px; --radius-lg: 10px; --transition: 0.2s ease;
}
body { font-family: 'Inter', sans-serif; background: var(--bg-light); color: var(--text-primary); font-size: 14px; line-height: 1.5; }
.erp-layout { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); background: var(--sidebar-bg); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; z-index: 100; transition: width var(--transition); overflow: hidden; }
.sidebar.collapsed { width: var(--sidebar-collapsed); }
.sidebar-logo { display: flex; align-items: center; gap: 10px; padding: 16px; height: var(--topbar-height); border-bottom: 1px solid rgba(255,255,255,0.08); flex-shrink: 0; }
.logo-text { color: #fff; font-size: 16px; font-weight: 600; white-space: nowrap; transition: opacity var(--transition); }
.sidebar.collapsed .logo-text { opacity: 0; width: 0; overflow: hidden; }
.sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 0; }
.nav-section { padding: 16px 12px 4px; }
.nav-section-label { color: rgba(255,255,255,0.35); font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; white-space: nowrap; transition: opacity var(--transition); }
.sidebar.collapsed .nav-section-label { opacity: 0; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 14px; color: rgba(255,255,255,0.65); text-decoration: none; border-radius: var(--radius); margin: 1px 8px; transition: all var(--transition); white-space: nowrap; }
.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-icon { font-size: 18px; flex-shrink: 0; width: 20px; text-align: center; }
.nav-label { font-size: 13px; font-weight: 500; transition: opacity var(--transition); }
.sidebar.collapsed .nav-label { opacity: 0; width: 0; overflow: hidden; }
.sidebar-toggle { padding: 12px; border-top: 1px solid rgba(255,255,255,0.08); }
.sidebar-toggle button { width: 100%; display: flex; align-items: center; justify-content: center; padding: 8px; background: rgba(255,255,255,0.06); border: none; border-radius: var(--radius); color: rgba(255,255,255,0.5); cursor: pointer; transition: all var(--transition); }
.sidebar-toggle button:hover { background: rgba(255,255,255,0.12); color: #fff; }
.main-content { margin-left: var(--sidebar-width); flex: 1; display: flex; flex-direction: column; transition: margin-left var(--transition); }
.main-content.collapsed { margin-left: var(--sidebar-collapsed); }
.topbar { height: var(--topbar-height); background: var(--bg-white); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 24px; gap: 16px; position: sticky; top: 0; z-index: 90; box-shadow: var(--shadow-sm); }
.topbar-search { flex: 1; max-width: 400px; position: relative; }
.topbar-search input { width: 100%; padding: 7px 12px 7px 36px; border: 1px solid var(--border); border-radius: 20px; font-size: 13px; background: var(--bg-light); color: var(--text-primary); outline: none; }
.topbar-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(135,90,123,0.12); }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
.topbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.topbar-btn { width: 36px; height: 36px; border-radius: 50%; border: none; background: transparent; color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.topbar-btn:hover { background: var(--bg-light); }
.user-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; cursor: pointer; }
.page-content { flex: 1; padding: 24px; }
.page-header { margin-bottom: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

.page-title { font-size: 20px; font-weight: 600; }
.page-subtitle { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.card { background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.card-body { padding: 20px; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 14px; font-weight: 600; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card { background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 20px; display: flex; align-items: flex-start; gap: 16px; box-shadow: var(--shadow-sm); transition: transform var(--transition); }
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi-icon { width: 48px; height: 48px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }
.kpi-icon.purple { background: rgba(135,90,123,0.12); color: var(--primary); }
.kpi-icon.teal { background: rgba(0,160,157,0.12); color: var(--secondary); }
.kpi-icon.orange { background: rgba(240,96,80,0.12); color: var(--accent); }
.kpi-icon.green { background: rgba(40,167,69,0.12); color: var(--success); }
.kpi-value { font-size: 24px; font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.kpi-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 500; cursor: pointer; border: none; text-decoration: none; transition: all var(--transition); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--bg-light); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.mobile-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99; }
.mobile-menu-btn { display: none; width: 36px; height: 36px; border: none; background: transparent; font-size: 20px; cursor: pointer; color: var(--text-secondary); align-items: center; justify-content: center; border-radius: var(--radius); }
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); width: var(--sidebar-width) !important; transition: transform var(--transition); }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
  .mobile-overlay.active { display: block; }
  .mobile-menu-btn { display: flex; }
  .page-content { padding: 16px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}