*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--orange:#e8590c;--orange-l:#fff3ed;--green:#2a9d5c;--green-l:#e6f5ee;--red:#c43232;--red-l:#feecec;--blue:#1a6fc4;--blue-l:#e8f1fb;--purple:#7b2fbe;--purple-l:#f3eafd;--admin-blue:#1a3a5c;--admin-blue-l:#e8eff7;--bg:#f5f4f2;--bg2:#fff;--bg3:#edecea;--text:#1a1917;--text2:#6b6966;--text3:#a09d9a;--border:#00000017;--sidebar-w:260px}html,body,#root{background:var(--bg);height:100%;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5}button{cursor:pointer;border:none;font-family:inherit}input,textarea,select{font-family:inherit;font-size:14px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#0000002e;border-radius:3px}.app-layout{height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);background:var(--admin-blue);z-index:100;flex-direction:column;flex-shrink:0;transition:transform .3s;display:flex;overflow-y:auto}.sidebar-header{background:#00000040;align-items:center;gap:12px;padding:20px 16px;display:flex}.sidebar-logo{background:var(--orange);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;display:flex}.sidebar-user{flex:1;min-width:0}.sidebar-user-name{color:#fff;white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:700;overflow:hidden}.sidebar-user-role{color:#fff9;margin-top:1px;font-size:11px}.sidebar-nav{flex:1;padding:8px 0}.sidebar-section{color:#fff6;letter-spacing:.8px;text-transform:uppercase;padding:16px 16px 4px;font-size:10px;font-weight:700}.sidebar-item{color:#ffffffbf;cursor:pointer;text-align:left;background:0 0;border-left:3px solid #0000;align-items:center;gap:12px;width:100%;padding:10px 16px;font-size:13px;font-weight:500;transition:all .15s;display:flex}.sidebar-item:hover{color:#fff;background:#ffffff14}.sidebar-item.active{border-left-color:var(--orange);color:#fff;background:#ffffff1f;font-weight:700}.sidebar-item-emoji{text-align:center;width:20px;font-size:16px}.sidebar-badge{background:var(--orange);color:#fff;border-radius:10px;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:auto;padding:0 5px;font-size:10px;font-weight:800;display:flex}.sidebar-footer{border-top:1px solid #ffffff1a;padding:12px}.sidebar-logout{color:#fff9;cursor:pointer;background:#ffffff0f;border:none;border-radius:10px;align-items:center;gap:10px;width:100%;padding:10px 12px;font-size:13px;font-weight:600;transition:all .15s;display:flex}.sidebar-logout:hover{color:#fca5a5;background:#dc262633}.main-area{flex-direction:column;flex:1;display:flex;overflow:hidden}.topbar{background:var(--admin-blue);flex-shrink:0;align-items:center;gap:12px;padding:12px 20px;display:flex;box-shadow:0 2px 8px #00000026}.topbar-title{color:#fff;flex:1;font-size:16px;font-weight:800}.topbar-sub{color:#ffffffb3;margin-top:1px;font-size:11px}.topbar-btn{color:#fff;cursor:pointer;background:#ffffff26;border:none;border-radius:8px;padding:7px 12px;font-size:13px;font-weight:600}.topbar-btn:hover{background:#ffffff40}.page-content{flex:1;padding:20px;overflow-y:auto}.card{background:#fff;border-radius:14px;margin-bottom:12px;padding:16px;box-shadow:0 2px 8px #0000000f}.card-title{color:var(--text);margin-bottom:14px;font-size:15px;font-weight:700}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:20px;display:grid}.stat-card{cursor:pointer;background:#fff;border-radius:14px;padding:16px;transition:transform .15s;box-shadow:0 2px 8px #0000000f}.stat-card:hover{transform:translateY(-2px)}.stat-value{color:var(--admin-blue);font-size:28px;font-weight:800}.stat-label{color:#444;margin-top:4px;font-size:12px;font-weight:600}.stat-sub{color:#888;margin-top:2px;font-size:10px}.tabs{background:var(--bg3);border-radius:12px;gap:2px;margin-bottom:16px;padding:4px;display:flex;overflow-x:auto}.tab{min-width:max-content;color:var(--text3);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:9px;flex:1;padding:8px 12px;font-size:12px;font-weight:600;transition:all .15s}.tab.active{color:var(--orange);background:#fff;font-weight:700;box-shadow:0 1px 4px #00000014}.btn{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-size:13px;font-weight:700;transition:opacity .15s,transform .1s;display:inline-flex}.btn:hover{opacity:.9}.btn:active{transform:scale(.98)}.btn-orange{background:var(--orange);color:#fff;box-shadow:0 3px 8px #e8590c59}.btn-blue{background:var(--admin-blue);color:#fff;box-shadow:0 3px 8px #1a3a5c4d}.btn-green{background:var(--green);color:#fff;box-shadow:0 3px 8px #2a9d5c4d}.btn-red{background:var(--red-l);color:var(--red);border:1px solid var(--red)}.btn-gray{background:var(--bg3);color:var(--text2)}.btn-full{width:100%}.form-label{color:var(--text2);margin-bottom:6px;font-size:12px;font-weight:600;display:block}.form-input{background:var(--bg3);border:1.5px solid var(--border);width:100%;color:var(--text);border-radius:10px;outline:none;margin-bottom:12px;padding:11px 14px;font-size:14px;transition:border-color .15s}.form-input:focus{border-color:var(--admin-blue);background:#fff}.search-wrap{border:1px solid var(--border);background:#fff;border-radius:10px;align-items:center;gap:8px;margin-bottom:12px;padding:8px 12px;display:flex}.search-input{color:var(--text);background:0 0;border:none;outline:none;flex:1;font-size:14px}.modal-overlay{z-index:1000;background:#0009;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-sheet{background:#fff;border-radius:20px;width:100%;max-width:520px;max-height:90vh;padding:24px;overflow-y:auto;box-shadow:0 20px 60px #0000004d}.modal-title{color:var(--text);margin-bottom:16px;font-size:18px;font-weight:800}.spinner{border:3px solid var(--border);border-top-color:var(--admin-blue);border-radius:50%;width:36px;height:36px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.center{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:200px;display:flex}.login-page{background:var(--admin-blue);flex-direction:column;min-height:100vh;display:flex;position:relative;overflow:hidden}.login-hero{text-align:center;flex-direction:column;align-items:center;padding:32px 24px 44px;display:flex}.login-card{background:#fff;border-radius:28px 28px 0 0;flex:1;min-height:60vh;padding:32px 24px}@media (width>=600px){.login-page{justify-content:center;align-items:center;min-height:100vh}.login-hero{padding-bottom:20px}.login-card{border-radius:24px;width:100%;max-width:460px;min-height:auto}}.divider{align-items:center;gap:10px;margin:16px 0;display:flex}.divider:before,.divider:after{content:"";background:var(--border);flex:1;height:1px}.divider span{color:var(--admin-blue);white-space:nowrap;font-size:11px;font-weight:700}.badge{white-space:nowrap;border-radius:20px;padding:3px 8px;font-size:11px;font-weight:700;display:inline-block}.user-row{cursor:pointer;border-radius:10px;align-items:center;gap:12px;padding:10px 8px;transition:background .1s;display:flex}.user-row:hover{background:var(--bg3)}.user-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;display:flex}.firebase-dot{border-radius:50%;width:10px;height:10px}.hamburger{color:#fff;cursor:pointer;background:#ffffff26;border:none;border-radius:8px;padding:7px 10px;font-size:18px;display:none}.sidebar-overlay{z-index:99;background:#00000080;display:none;position:fixed;inset:0}@media (width<=768px){:root{--sidebar-w:270px}.sidebar{position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:4px 0 20px #0000004d}.sidebar-overlay.open,.hamburger{display:block}.stats-grid{grid-template-columns:repeat(2,1fr)}.page-content{padding:12px}}.session-card{border:1px solid var(--border);background:#fff;border-radius:12px;margin-bottom:8px;padding:12px 14px}.info-block{background:var(--admin-blue-l);border-radius:12px;margin-bottom:12px;padding:12px 16px}.danger-banner{background:var(--red-l);border:1px solid var(--red);border-radius:10px;margin-bottom:12px;padding:10px 14px}.toast-container{z-index:9999;flex-direction:column;gap:8px;display:flex;position:fixed;top:20px;right:20px}.toast{color:#fff;background:#1f2937;border-radius:10px;max-width:320px;padding:12px 16px;font-size:13px;font-weight:600;animation:.2s slideIn;box-shadow:0 4px 12px #0000004d}.toast.success{background:var(--green)}.toast.error{background:var(--red)}.toast.info{background:var(--admin-blue)}@keyframes slideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}