:root{--brand:#3976F6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color-scheme:light;--bg:#f3f6fc;--card:#fff;--card2:#f5f7fc;--sidebar:#142039;--sidebar2:#1c2e4c;--text:#17243b;--muted:#687b97;--line:#e1e8f1;--blue:#3976f6;--blueTint:#ebf2ff;--success:#12805c;--warning:#ac6811;--danger:#c52d42;--shadow:0 9px 30px #1f3c7220;--radius:15px}:root[data-theme=dark]{color-scheme:dark;--bg:#0e1726;--card:#19283d;--card2:#21334d;--sidebar:#0d1524;--sidebar2:#1b2b46;--text:#e8eef8;--muted:#a5b6d0;--line:#34445c;--blue:#73a1ff;--blueTint:#233d65;--success:#5ad3a6;--warning:#ffc56b;--danger:#ff8591;--shadow:0 8px 28px #0003}*,*:before,*:after{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}input,select,textarea{width:100%;background:var(--card);color:var(--text);border:1px solid var(--line);padding:12px 13px;border-radius:11px;min-height:45px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #3976f633}textarea{resize:vertical;min-height:80px}label{display:block;font-weight:650;font-size:.86rem;margin-bottom:7px}a{color:inherit}h1,h2,h3,p{margin:0}h1{font-size:1.45rem;letter-spacing:-.03em}h2{font-size:1.12rem}p{line-height:1.55}small,.muted{color:var(--muted)}.loading-screen{min-height:100vh;display:grid;place-items:center;color:var(--muted)}.btn{border:1px solid transparent;border-radius:11px;padding:11px 16px;min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:.88rem;font-weight:700;white-space:nowrap;transition:filter .15s}.btn:hover:not(:disabled){filter:brightness(.96)}.btn-primary{background:var(--brand);color:#fff}.btn-secondary{background:var(--card2);border-color:var(--line);color:var(--text)}.btn-danger{background:#ba2942;color:#fff}.btn-sm{min-height:34px;padding:7px 11px;font-size:.78rem}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid>.wide{grid-column:1/-1}.stack{display:grid;gap:14px}.flex{display:flex;gap:10px;align-items:center}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:18px}.chip{display:inline-flex;align-items:center;border-radius:30px;padding:5px 9px;font-size:.73rem;font-weight:700;background:var(--blueTint);color:var(--blue)}.chip.ok{background:#12805c20;color:var(--success)}.chip.off{background:#c52d421c;color:var(--danger)}.pill-label{font-size:.71rem;letter-spacing:.1em;font-weight:800;color:var(--muted)}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,480px);background:linear-gradient(145deg,#14233e,#0d1627)}.auth-hero{display:flex;flex-direction:column;justify-content:center;padding:clamp(40px,8vw,110px);color:#fff;background:radial-gradient(circle at 70% 30%,#3976f655,transparent 44%)}.brand-symbol{height:64px;width:64px;border-radius:20px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:1.8rem;font-weight:900}.auth-hero h1{font-size:clamp(2.2rem,4vw,4rem);line-height:1.1;margin:25px 0 14px}.auth-hero p{max-width:430px;color:#bacbe5}.auth-right{background:var(--bg);display:grid;place-items:center;padding:25px}.auth-box{width:100%;max-width:390px}.auth-box .card{padding:30px}.auth-box h2{font-size:1.6rem;margin-bottom:10px}.auth-box p{margin-bottom:25px}.auth-box form{display:grid;gap:18px}.brand-mini{display:flex;gap:11px;align-items:center;margin-bottom:25px}.logo-img{height:44px;width:44px;object-fit:contain;border-radius:10px;background:#fff}.logo-img.big{height:70px;width:70px}.shell{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:264px;background:var(--sidebar);color:#dbe5f6;display:flex;flex-direction:column;transition:width .2s;z-index:30}.sidebar.collapsed{width:76px}.sidebar-head{height:76px;display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid #ffffff1a}.sidebar-head .brand-symbol{height:40px;width:40px;border-radius:12px;flex-shrink:0;font-size:1.3rem}.sidebar .name{font-weight:850;letter-spacing:-.03em;line-height:1.15;min-width:0}.sidebar .sub{font-size:.68rem;color:#9db2d1}.sidebar .icon-btn{color:#cbd6e8;background:transparent;border:0;padding:9px;font-size:1.15rem}.sidebar-list{padding:11px 10px 26px;overflow:auto;flex:1}.sidebar-search{width:100%;border:1px solid #ffffff22;background:#263853;color:#fff;min-height:40px;border-radius:10px;margin:6px 0 15px}.sidebar-search::placeholder{color:#acbdd7}.nav-head{background:transparent;color:#9bb0d0;border:0;display:flex;width:100%;align-items:center;justify-content:space-between;padding:12px 11px 8px;font-size:.7rem;letter-spacing:.07em;font-weight:800;text-align:left}.nav-item{width:100%;padding:10px 11px;display:flex;align-items:center;gap:11px;border:0;background:none;color:#d3deef;border-radius:10px;text-align:left;font-size:.86rem;margin-bottom:2px}.nav-item:hover,.nav-item.active{background:#29456e;color:#fff}.nav-item .glyph{width:23px;text-align:center;font-size:1.08rem}.nav-item span.label{flex:1}.star-btn{border:0;background:none;color:#768bab;padding:2px 5px;font-size:1rem}.star-btn.favorite{color:#ffcf64}.sidebar.collapsed .nav-item{justify-content:center}.sidebar.collapsed .sidebar-list{padding:11px 8px}.sidebar-footer{border-top:1px solid #ffffff22;padding:15px;display:flex;gap:9px;align-items:center}.main{flex:1;min-width:0;margin-left:264px;transition:margin-left .2s}.shell.is-collapsed .main{margin-left:76px}.topbar{height:76px;background:var(--card);border-bottom:1px solid var(--line);padding:0 26px;display:flex;justify-content:space-between;align-items:center;gap:10px;position:sticky;top:0;z-index:10}.topbar-title{font-weight:800}.topbar-sub{font-size:.75rem;color:var(--muted);margin-top:5px}.content{padding:26px;max-width:1540px;margin:0 auto}.pagehead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:23px}.pagehead p{color:var(--muted);font-size:.88rem;margin-top:5px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:22px}.stat-value{font-size:2rem;letter-spacing:-.05em;font-weight:850;margin-top:10px}.stat-label{font-size:.85rem;color:var(--muted)}.stat-icon{width:38px;height:38px;border-radius:11px;background:var(--blueTint);color:var(--blue);display:grid;place-items:center}.twocol{display:grid;grid-template-columns:1fr 1fr;gap:20px}.table-scroll{overflow:auto;max-width:100%;overscroll-behavior-x:contain;touch-action:pan-x pan-y}table{border-collapse:collapse;min-width:650px;width:100%;text-align:left}th,td{padding:13px;border-bottom:1px solid var(--line);font-size:.84rem;vertical-align:middle}th{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.03em;font-weight:800}tr:last-child td{border-bottom:0}td .btn{margin:2px}.toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:15px}.toolbar input{max-width:350px}.empty{padding:28px;text-align:center;color:var(--muted)}.callout{border-left:3px solid var(--blue);background:var(--blueTint);padding:13px 15px;border-radius:10px;margin:15px 0;font-size:.84rem}.alert{background:#c52d4220;color:var(--danger);padding:11px;border-radius:10px;font-size:.86rem}.toast{position:fixed;bottom:24px;right:24px;max-width:400px;background:#183251;color:#fff;padding:14px 18px;border-radius:11px;box-shadow:0 10px 30px #0005;z-index:110}.toast.error{background:#8b2033}.modal-backdrop{position:fixed;inset:0;background:#07101aba;z-index:90;display:flex;align-items:center;justify-content:center;padding:16px}.modal{background:var(--card);color:var(--text);border-radius:18px;box-shadow:0 20px 80px #0006;width:100%;max-width:630px;max-height:92vh;overflow-y:auto;padding:23px}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.iconbtn{border:0;background:none;color:inherit;font-size:1.4rem;min-width:37px;min-height:37px}.mobile-menu,.mobile-shade{display:none}.mobile-shade{position:fixed;inset:0;background:#030b16a6;z-index:29}.checkline{display:flex;align-items:center;gap:9px}.checkline input{width:auto;min-height:auto}.right{text-align:right}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.75rem;overflow-wrap:anywhere}.footer-hint{color:var(--muted);font-size:.73rem;margin-top:25px}.actions{display:flex;gap:8px;flex-wrap:wrap}.symbol-sm{height:40px;width:40px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:1.3rem}@media(max-width:1150px){.stats{grid-template-columns:repeat(2,1fr)}.twocol{grid-template-columns:1fr}}@media(max-width:850px){.auth-wrap{grid-template-columns:1fr}.auth-hero{display:none}.auth-right{min-height:100vh}.sidebar{transform:translate(-101%);width:min(84vw,315px)!important;transition:transform .2s}.sidebar.mobile-open{transform:translate(0)}.mobile-shade.show{display:block}.main,.shell.is-collapsed .main{margin-left:0}.mobile-menu{display:inline-flex}.topbar{height:64px;padding:0 14px}.content{padding:16px}.pagehead{align-items:flex-start;flex-direction:column}}@media(max-width:560px){.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.card{padding:15px}.stat-value{font-size:1.55rem}.stat-label{font-size:.75rem}.form-grid{grid-template-columns:1fr}.pagehead h1{font-size:1.2rem}.topbar-sub{display:none}.topbar-title{font-size:.9rem}.btn{white-space:normal}.auth-box .card{padding:22px}.toolbar input{max-width:100%}}.profile-header{display:flex;align-items:center;gap:14px;min-width:0}.profile-avatar{height:72px;width:72px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;background:var(--blueTint);color:var(--blue);font-size:1.65rem;font-weight:850;overflow:hidden}.profile-avatar img,.sidebar-avatar img{display:block;width:100%;height:100%;object-fit:cover}.sidebar-avatar{width:32px;height:32px;flex-shrink:0;border-radius:50%;display:grid;place-items:center;background:#36517b;color:#fff;overflow:hidden;font-size:.85rem;font-weight:800}.profile-divider{border:0;border-top:1px solid var(--line);margin:22px 0}.pager{display:flex;justify-content:flex-end;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap}.profile-summary{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:1.2rem}.student-subcard{padding:14px;box-shadow:none}.student-subcard .table-scroll{max-width:100%}.student-footnote{font-size:.78rem;margin:-3px 0 10px}@media(max-width:560px){.pager{justify-content:center}.student-subcard{padding:10px}}