:root{--bg:#f2f2f7;--surface:#fff;--surface2:#e9e9ee;--border:#00000012;--border-md:#0000001f;--accent:#0047ff;--accent-hover:#0038cc;--accent-dim:#0047ff17;--text:#0a0a0a;--text2:#48484a;--muted:#8e8e93;--green:#34c759;--green-dim:#34c7591f;--red:#ff3b30;--red-dim:#ff3b301a;--gold:#ff9f0a;--gold-dim:#ff9f0a24;--shadow-sm:0 1px 4px #0000000d;--shadow-md:0 2px 10px #00000012;--radius:14px;--radius-sm:10px;--sidebar-w:232px}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;line-height:1.45}h1,h2,h3{letter-spacing:-.02em;margin:0}p{margin:0}a{color:inherit;text-decoration:none}button{font-family:inherit}input,textarea,select{font-family:inherit;font-size:14px}.app-shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;height:100vh;padding:20px 14px;display:flex;position:sticky;top:0}.sidebar-brand{align-items:center;gap:10px;padding:4px 10px 20px;display:flex}.sidebar-brand img{border-radius:9px;width:34px;height:34px}.sidebar-brand strong{letter-spacing:-.4px;font-size:16px;font-weight:700}.sidebar-brand span{color:var(--muted);font-size:11px;font-weight:500;display:block}.sidebar nav{flex-direction:column;flex:1;gap:2px;display:flex}.nav-link{border-radius:var(--radius-sm);color:var(--text2);align-items:center;gap:11px;padding:10px 12px;font-size:13.5px;font-weight:500;transition:background .12s,color .12s;display:flex}.nav-link:hover{background:var(--bg);color:var(--text)}.nav-link.active{background:var(--accent-dim);color:var(--accent);font-weight:600}.nav-link svg{width:18px;height:18px}.sidebar-footer{border-top:1px solid var(--border);padding-top:12px}.sidebar-user{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;padding:4px 12px 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13px;font-size:14px;transition:border-color .12s,box-shadow .12s}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}textarea.input{resize:vertical;min-height:80px}.table-wrap{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13.5px}th{text-align:left;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);white-space:nowrap;padding:12px 16px;font-size:11.5px;font-weight:600}td{border-bottom:1px solid var(--border);vertical-align:middle;padding:12px 16px}tr:last-child td{border-bottom:none}tr.row-hover:hover td{background:var(--bg)}.badge{white-space:nowrap;border-radius:999px;align-items:center;gap:5px;padding:3px 10px;font-size:11.5px;font-weight:600;display:inline-flex}.badge-blue{background:var(--accent-dim);color:var(--accent)}.badge-green{background:var(--green-dim);color:var(--green)}.badge-red{background:var(--red-dim);color:var(--red)}.badge-gold{background:var(--gold-dim);color:#c77700}.badge-muted{background:var(--surface2);color:var(--text2)}.tabs{background:var(--surface2);border-radius:var(--radius-sm);gap:2px;padding:3px;display:inline-flex}.tabs button{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:7px 16px;font-size:12.5px;font-weight:600}.tabs button.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}.period-nav{align-items:center;gap:12px;display:flex}.period-nav 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var(--border);cursor:pointer}.slot-select.selected{background:var(--accent);color:#fff;border-color:var(--accent)}.bar-row{align-items:center;gap:10px;margin-bottom:8px;display:flex}.bar-row .bar-label{width:36px;color:var(--muted);font-size:12px;font-weight:600}.bar-row .bar-track{background:var(--surface2);border-radius:4px;flex:1;height:8px;overflow:hidden}.bar-row .bar-fill{background:var(--accent);border-radius:4px;height:100%}.bar-row .bar-count{text-align:right;width:30px;font-size:12px;font-weight:600}.stat-row{justify-content:space-between;align-items:center;gap:12px;padding:7px 0;display:flex}.stat-row .label{color:var(--text2);font-size:13.5px}.stat-row .value{white-space:nowrap;font-size:13.5px;font-weight:600}.stat-row .value.big{color:var(--accent);font-size:15px;font-weight:700}.divider{background:var(--border);height:1px;margin:8px 0}.modal-backdrop{z-index:100;background:#0006;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:18px;width:100%;max-width:480px;max-height:85vh;padding:24px;overflow-y:auto;box-shadow:0 12px 40px #0000002e}.modal-header{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.modal-header h3{font-size:17px;font-weight:700}.modal-close{cursor:pointer;color:var(--muted);background:0 0;border:none;padding:4px;display:flex}.empty{text-align:center;color:var(--muted);background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:44px 20px}.empty svg{width:28px;height:28px;margin-bottom:8px}.empty .empty-title{color:var(--text);margin-bottom:3px;font-size:14.5px;font-weight:600}.spinner{border:3px solid var(--accent-dim);border-top-color:var(--accent);border-radius:50%;width:26px;height:26px;margin:40px auto;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-text{color:var(--red);font-size:13px;font-weight:500}.login-page{background:radial-gradient(700px 400px at 85% -10%, #0047ff14, transparent), var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-card{background:var(--surface);width:100%;max-width:400px;box-shadow:var(--shadow-md);border-radius:20px;padding:36px 32px}.login-card .brand{align-items:center;gap:12px;margin-bottom:26px;display:flex}.login-card .brand img{border-radius:11px;width:44px;height:44px}.login-card h1{font-size:21px;font-weight:700}.login-card .sub{color:var(--text2);margin-top:2px;font-size:13.5px}.login-card form{flex-direction:column;gap:15px;margin-top:4px;display:flex}