:root{--primary:#06f;--primary-dark:#0047cc;--primary-light:#4d9fff;--accent:#00d4ff;--dark:#0a0e1a;--dark-2:#111827;--dark-3:#1f2937;--border:hsla(0,0%,100%,.08);--text:#f9fafb;--text-muted:#9ca3af;--gradient:linear-gradient(135deg,#06f,#00d4ff);--radius:10px;--sidebar-w:240px;--success:#10b981;--danger:#ef4444;--warning:#f59e0b}.admin-root *{margin:0;padding:0;box-sizing:border-box}.admin-root{font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif;background:var(--dark);color:var(--text);min-height:100vh}.admin-root a{text-decoration:none;color:inherit}.admin-root button{font-family:inherit;cursor:pointer}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse 80% 60% at 50% 0,rgba(0,102,255,.15) 0,transparent 70%),var(--dark)}.login-card{width:100%;max-width:420px;background:var(--dark-2);border:1px solid var(--border);border-radius:20px;padding:48px 40px;box-shadow:0 40px 80px rgba(0,0,0,.4)}.login-logo{text-align:center;margin-bottom:32px}.login-logo-text{font-size:26px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-title{font-size:20px;font-weight:700;margin-bottom:6px}.login-subtitle{font-size:14px;color:var(--text-muted);margin-bottom:32px}.admin-root .form-group{margin-bottom:20px}.admin-root .form-group label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:8px}.admin-root .form-group input,.admin-root .form-group select,.admin-root .form-group textarea{width:100%;background:var(--dark-3);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;color:var(--text);font-size:14px;outline:none;transition:all .2s}.admin-root .form-group input:focus,.admin-root .form-group select:focus,.admin-root .form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,102,255,.1)}.btn-login{width:100%;padding:13px;background:var(--gradient);color:#fff;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px rgba(0,102,255,.3)}.btn-login:hover{transform:translateY(-1px);box-shadow:0 12px 32px rgba(0,102,255,.45)}.btn-login:disabled{opacity:.6;cursor:not-allowed;transform:none}.admin-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--dark-2);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s}.sidebar-header{padding:24px 20px;border-bottom:1px solid var(--border)}.sidebar-logo{font-size:18px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:block;margin-bottom:4px}.sidebar-subtitle{font-size:11px;color:var(--text-muted)}.sidebar-nav{flex:1 1;padding:16px 12px;overflow-y:auto}.nav-section-title{font-size:11px;color:var(--text-muted);letter-spacing:1px;padding:8px 10px 6px;text-transform:uppercase}.admin-nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text-muted);cursor:pointer;transition:all .2s;margin-bottom:2px;border:none;background:none;width:100%;text-align:left}.admin-nav-item:hover{background:hsla(0,0%,100%,.05);color:var(--text)}.admin-nav-item.active{background:rgba(0,102,255,.12);color:var(--primary-light)}.admin-nav-item .icon{font-size:16px;width:20px;text-align:center}.sidebar-footer{padding:16px 12px;border-top:1px solid var(--border)}.user-info{gap:10px;padding:10px 12px;border-radius:8px;margin-bottom:8px}.user-avatar,.user-info{display:flex;align-items:center}.user-avatar{width:32px;height:32px;border-radius:50%;background:var(--gradient);justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}.user-name{font-size:13px;font-weight:600}.user-role{font-size:11px;color:var(--text-muted)}.main-content{margin-left:var(--sidebar-w);flex:1 1;display:flex;flex-direction:column;min-height:100vh}.topbar{height:60px;background:var(--dark-2);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:-webkit-sticky;position:sticky;top:0;z-index:50}.topbar-title{font-size:16px;font-weight:700}.topbar-actions{display:flex;align-items:center;gap:12px}.btn-sm{padding:7px 16px;border-radius:7px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;border:none}.btn-primary-sm{background:var(--primary);color:#fff}.btn-primary-sm:hover{background:var(--primary-dark)}.btn-outline-sm{background:transparent;border:1px solid var(--border);color:var(--text-muted)}.btn-outline-sm:hover{border-color:var(--primary);color:var(--primary)}.btn-danger-sm{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.3);color:#fca5a5}.btn-danger-sm:hover{background:rgba(239,68,68,.25)}.btn-success-sm{background:rgba(16,185,129,.15);border:1px solid rgba(16,185,129,.3);color:#6ee7b7}.btn-warning-sm{background:rgba(245,158,11,.15);border:1px solid rgba(245,158,11,.3);color:#fcd34d}.page-content{padding:28px;flex:1 1}.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px;margin-bottom:28px}.stat-card{background:var(--dark-2);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;gap:16px}.stat-card,.stat-card-icon{display:flex;align-items:center}.stat-card-icon{width:44px;height:44px;border-radius:10px;justify-content:center;font-size:20px;flex-shrink:0}.stat-card-label{font-size:12px;color:var(--text-muted);margin-bottom:4px}.stat-card-value{font-size:24px;font-weight:800}.panel{background:var(--dark-2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.panel-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.panel-title{font-size:15px;font-weight:700}.panel-body{padding:20px}.data-table{width:100%;border-collapse:collapse}.data-table th{padding:10px 14px;text-align:left;font-size:12px;color:var(--text-muted);border-bottom:1px solid var(--border);font-weight:500;white-space:nowrap}.data-table td{padding:12px 14px;font-size:13px;border-bottom:1px solid hsla(0,0%,100%,.04);vertical-align:middle}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background:hsla(0,0%,100%,.02)}.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:500}.badge-success{background:rgba(16,185,129,.12);color:#6ee7b7;border:1px solid rgba(16,185,129,.2)}.badge-warning{background:rgba(245,158,11,.12);color:#fcd34d;border:1px solid rgba(245,158,11,.2)}.badge-info{background:rgba(0,102,255,.12);color:#93c5fd;border:1px solid rgba(0,102,255,.2)}.admin-form .form-group{margin-bottom:20px}.admin-form label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:7px}.admin-form input,.admin-form select,.admin-form textarea{width:100%;background:var(--dark-3);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:14px;outline:none}.admin-form input:focus,.admin-form select:focus,.admin-form textarea:focus{border-color:var(--primary)}.admin-form textarea{resize:vertical;min-height:100px}.form-row-2{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px}.form-hint{font-size:11px;color:var(--text-muted);margin-top:5px}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:20px}.modal{background:var(--dark-2);border:1px solid var(--border);border-radius:16px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 40px 80px rgba(0,0,0,.5)}.modal-header{padding:20px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:16px;font-weight:700}.modal-close{background:none;border:none;color:var(--text-muted);font-size:20px;cursor:pointer;padding:4px}.modal-body{padding:24px}.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 18px;border-radius:8px;font-size:13px;box-shadow:0 8px 24px rgba(0,0,0,.3);display:flex;align-items:center;gap:8px;min-width:220px}.toast.success{background:rgba(16,185,129,.15);border:1px solid rgba(16,185,129,.3);color:#6ee7b7}.toast.error{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.3);color:#fca5a5}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state-icon{font-size:48px;margin-bottom:14px}.empty-state-text{font-size:15px}.loading{text-align:center;padding:40px;color:var(--text-muted);font-size:14px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:24px;gap:24px}@media(max-width:900px){.settings-grid{grid-template-columns:1fr}}.logo-upload-area{border:2px dashed var(--border);border-radius:var(--radius);padding:32px;text-align:center;transition:all .2s}.logo-upload-area:hover{border-color:var(--primary);background:rgba(0,102,255,.04)}.logo-upload-icon{font-size:36px;margin-bottom:10px}.logo-upload-text{font-size:14px;color:var(--text-muted)}.logo-upload-hint{font-size:12px;color:var(--text-muted);margin-top:4px}.logo-preview{max-height:80px;max-width:240px;object-fit:contain;margin-bottom:12px}@media(max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}.stat-cards{grid-template-columns:1fr 1fr}}