*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--purple: #534AB7;--purple-light: #7B6FD4;--purple-soft: rgba(83,74,183,.08);--green: #1D9E75;--red: #E53E3E;--orange: #E67E22;--bg: #F5F4FF;--surface: #FFFFFF;--surface2: #F8F7FF;--border: #EEEDF8;--text: #1A1A2E;--text2: #6B7280;--sidebar-w: 240px;--radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font:inherit}input,select,textarea{font:inherit;border:1.5px solid var(--border);border-radius:8px;padding:8px 12px;outline:none;background:var(--surface);color:var(--text);width:100%}input:focus,select:focus{border-color:var(--purple)}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1.5px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-logo{padding:20px 20px 16px;border-bottom:1.5px solid var(--border)}.sidebar-logo .brand{font-size:20px;font-weight:800;color:var(--purple)}.sidebar-logo .sub{font-size:11px;color:var(--text2);font-weight:500;margin-top:2px}.sidebar nav{flex:1;padding:12px 10px;overflow-y:auto}.nav-section{font-size:10px;font-weight:700;color:var(--text2);letter-spacing:1px;text-transform:uppercase;padding:16px 10px 6px}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;color:var(--text2);font-weight:500;font-size:13.5px;transition:all .15s;margin-bottom:2px}.nav-link:hover{background:var(--purple-soft);color:var(--purple)}.nav-link.active{background:var(--purple-soft);color:var(--purple);font-weight:600}.nav-link .icon{font-size:16px;width:20px;text-align:center}.sidebar-footer{padding:16px;border-top:1.5px solid var(--border)}.sidebar-user{display:flex;align-items:center;gap:10px;margin-bottom:10px}.sidebar-user img{width:32px;height:32px;border-radius:50%;object-fit:cover}.sidebar-user .name{font-weight:600;font-size:13px}.sidebar-user .email{font-size:11px;color:var(--text2)}.main{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh}.topbar{background:var(--surface);border-bottom:1.5px solid var(--border);padding:0 28px;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}.topbar h1{font-size:16px;font-weight:700}.page{padding:28px;flex:1}.card{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);padding:18px 20px}.stat-card .label{font-size:12px;color:var(--text2);font-weight:500;margin-bottom:6px}.stat-card .value{font-size:28px;font-weight:800;color:var(--purple)}.stat-card .sub{font-size:11px;color:var(--text2);margin-top:4px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:11px;font-weight:700;color:var(--text2);letter-spacing:.5px;text-transform:uppercase;padding:10px 14px;border-bottom:1.5px solid var(--border)}td{padding:12px 14px;border-bottom:1px solid var(--border);font-size:13.5px;vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:var(--surface2)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;font-weight:600;font-size:13px;transition:all .15s}.btn-primary{background:var(--purple);color:#fff}.btn-primary:hover{background:var(--purple-light)}.btn-danger{background:#fff0f0;color:var(--red)}.btn-danger:hover{background:#ffe0e0}.btn-ghost{color:var(--text2)}.btn-ghost:hover{background:var(--surface2);color:var(--text)}.btn-sm{padding:5px 10px;font-size:12px}.badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:20px;font-size:11px;font-weight:600}.badge-purple{background:var(--purple-soft);color:var(--purple)}.badge-green{background:#1d9e751a;color:var(--green)}.badge-red{background:#e53e3e1a;color:var(--red)}.badge-gray{background:var(--surface2);color:var(--text2)}.search-bar{position:relative}.search-bar input{padding-left:36px}.search-bar .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text2);font-size:14px;pointer-events:none}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}.modal{background:var(--surface);border-radius:16px;padding:28px;max-width:520px;width:100%;max-height:80vh;overflow-y:auto}.modal h2{font-size:18px;font-weight:700;margin-bottom:20px}.avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;background:var(--purple-soft);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:var(--purple);flex-shrink:0}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--purple);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.empty{text-align:center;padding:60px 20px;color:var(--text2)}.empty .icon{font-size:40px;margin-bottom:12px}.empty p{font-size:15px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{background:var(--surface);border:1.5px solid var(--border);border-radius:20px;padding:48px 40px;text-align:center;max-width:380px;width:100%}.login-card h1{font-size:24px;font-weight:800;color:var(--purple);margin-bottom:8px}.login-card p{color:var(--text2);margin-bottom:32px}.alert{padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:16px}.alert-error{background:#fff0f0;color:var(--red);border:1px solid #FFCCCC}.alert-success{background:#1d9e751a;color:var(--green);border:1px solid rgba(29,158,117,.2)}.tabs{display:flex;gap:4px;border-bottom:1.5px solid var(--border);margin-bottom:20px}.tab{padding:10px 16px;font-size:13px;font-weight:500;color:var(--text2);border-bottom:2px solid transparent;margin-bottom:-1.5px}.tab.active{color:var(--purple);border-bottom-color:var(--purple);font-weight:600}.tab:hover{color:var(--purple)}.confirm-box{background:#fff0f0;border:1.5px solid #FFCCCC;border-radius:10px;padding:16px;margin-top:16px}.confirm-box p{color:var(--red);font-size:13px;margin-bottom:12px}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.main{margin-left:0}}