:root{--sidebar-bg:#0d3b36;--sidebar-active:#2e8b6f;--accent-green:#4caf50;--accent-red:#e53935;--text-dark:#1a1a1a;--text-muted:#6b7280;--border-light:#e5e7eb;--bg-page:#f9fafb}*{box-sizing:border-box}body{background:var(--bg-page);color:var(--text-dark);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--sidebar-bg);color:#fff;flex-direction:column;flex-shrink:0;width:220px;padding:24px 0;display:flex}.sidebar-logo{letter-spacing:1px;padding:0 24px 24px;font-size:22px;font-weight:700}.sidebar-nav{flex-direction:column;gap:2px;display:flex}.sidebar-link{color:#cfe8e0;border-left:3px solid #0000;padding:12px 24px;font-size:14px;text-decoration:none}.sidebar-link:hover{background:#ffffff0f}.sidebar-link.active{color:#fff;border-left-color:var(--sidebar-active);background:#ffffff14;font-weight:600}.sidebar-footer{color:#8fb8ae;margin-top:auto;padding:24px;font-size:11px}.main-content{flex:1;padding:32px 40px}.topbar{justify-content:flex-end;align-items:center;gap:16px;margin-bottom:24px;font-size:14px;display:flex}.topbar button{color:#2e8b6f;cursor:pointer;background:0 0;border:none;font-size:14px}h1.page-title{color:#0d3b36;margin:0 0 24px;font-size:22px}.card{border:1px solid var(--border-light);background:#fff;border-radius:8px;padding:20px}.stat-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px;display:grid}.stat-card{border:1px solid var(--border-light);background:#fff;border-radius:8px;padding:20px}.stat-card .label{color:var(--text-muted);margin-bottom:6px;font-size:13px}.stat-card .value{color:#0d3b36;font-size:26px;font-weight:700}table{border-collapse:collapse;background:#fff;border-radius:8px;width:100%;overflow:hidden}thead{background:#f3f4f6}th{text-align:left;text-transform:uppercase;color:var(--text-muted);padding:12px 16px;font-size:12px}td{border-top:1px solid var(--border-light);vertical-align:middle;padding:12px 16px;font-size:14px}tr:hover td{background:#fafafa}.thumb{object-fit:cover;background:#e5e7eb;border-radius:6px;width:44px;height:44px}.btn{cursor:pointer;border:none;border-radius:6px;padding:10px 18px;font-size:14px;font-weight:600}.btn-primary{background:var(--accent-green);color:#fff}.btn-danger{background:var(--accent-red);color:#fff}.btn-outline{border:1px solid var(--border-light);color:var(--text-dark);background:#fff}.tab-group{gap:8px;margin-bottom:24px;display:flex}.tab-btn{cursor:pointer;color:#374151;background:#e5e7eb;border:none;border-radius:6px;padding:10px 20px;font-size:14px;font-weight:600}.tab-btn.active{background:var(--sidebar-bg);color:#fff}.form-group{max-width:480px;margin-bottom:18px}.form-group.no-max-width{max-width:none}.form-group label{margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid var(--border-light);border-radius:6px;width:100%;padding:10px 12px;font-size:14px}.media-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:20px;display:grid}@media (width<=640px){.media-grid{grid-template-columns:1fr}}.media-box{border:1px solid var(--border-light);background:#fafafa;border-radius:8px;min-width:0;padding:14px}.media-box input[type=file]{max-width:100%}.media-box-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.media-box-header label{margin:0;font-size:13px;font-weight:600}.media-preview-slot{background:#e5e7eb;border-radius:6px;justify-content:center;align-items:center;width:100%;height:110px;margin-top:10px;display:flex;overflow:hidden}.media-preview-slot img{object-fit:cover;width:100%;height:100%}.login-wrap{background:var(--bg-page);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{text-align:center;border:1px solid var(--border-light);background:#fff;border-radius:10px;width:360px;padding:40px}.login-card h1{color:#0d3b36;margin:0 0 24px;font-size:20px}.error-text{color:var(--accent-red);margin-top:8px;font-size:13px}.badge{border-radius:12px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.badge-green{color:#166534;background:#dcfce7}.badge-gray{color:#4b5563;background:#f3f4f6}.badge-red{color:#991b1b;background:#fee2e2}