:root{--bg:#f2f5fa;--surface:#fff;--ink:#142b46;--muted:#69798d;--line:#e0e7f0;--primary:#2461d4;--nav:#10263f;--mint:#c7f5df;--shadow:0 5px 24px #12304b06;color-scheme:light}*{box-sizing:border-box}body{margin:0;font:14px/1.55 Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--bg)}body.dark{--bg:#111d2c;--surface:#19293c;--ink:#e8f0fa;--muted:#a2b2c7;--line:#304156;--primary:#76a5ff;color-scheme:dark}a{color:var(--primary);text-decoration:none}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;border:1px solid transparent;border-radius:8px;padding:10px 16px;background:#2461d4;color:white;font-weight:600;cursor:pointer;text-decoration:none;white-space:normal}button:hover,.button:hover{filter:brightness(.96)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #66a1ff;outline-offset:2px}.secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}.light{background:white;color:#173758}label{display:flex;flex-direction:column;font-size:12px;font-weight:650;gap:7px;min-width:0}input,select,textarea{width:100%;min-width:0;background:var(--surface);color:var(--ink);border:1px solid var(--line);padding:10px 12px;border-radius:7px;font-size:14px}input[type=checkbox]{width:17px;height:17px;flex-shrink:0;accent-color:#2461d4}textarea{resize:vertical}p{color:var(--muted);margin:7px 0 18px}h1,h2,h3{line-height:1.25;margin:0 0 10px}h1{font-size:29px;letter-spacing:-.7px}h2{font-size:19px;letter-spacing:-.25px}h3{font-size:15px;margin-top:22px}small{font-size:11px;color:var(--muted)}td small{display:block}aside{position:fixed;inset:0 auto 0 0;width:252px;background:var(--nav);color:#e9f3ff;padding:28px 16px;display:flex;flex-direction:column;z-index:40}.brand{display:flex;gap:11px;align-items:center;color:#fff;font-weight:700;font-size:15px;padding:0 8px 25px}.brand small{display:block;color:#8da3bc;font-size:9px;font-weight:400}.brand-mark{display:inline-flex;align-items:center;justify-content:center;background:#c7f5df;color:#16413b;font-weight:850;font-size:20px;border-radius:11px;width:48px;height:48px;flex-shrink:0}.nav-label{color:#8097b0;font-size:9px;letter-spacing:1.7px;margin:18px 12px 12px}nav{overflow-y:auto}nav a{display:flex;align-items:center;gap:12px;padding:10px 14px;color:#aebed1;border-radius:7px;margin:3px 0;font-size:12px}nav a:hover{background:#203a57;color:#fff}nav a.active{background:#264769;color:#fff}.nav-dot{height:6px;width:6px;border:1.5px solid currentColor;border-radius:50%}.active .nav-dot{background:#b6f2d5;border-color:#b6f2d5}.aside-bottom{display:flex;align-items:center;gap:10px;margin-top:auto;padding:20px 8px 0;border-top:1px solid #2a415b;font-size:11px}.aside-bottom small{display:block;color:#8da3bc}.avatar{background:#2c4865;border-radius:50%;width:34px;height:34px;display:grid;place-items:center;font-size:14px}.shell{margin-left:252px}header{height:76px;background:var(--surface);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 34px}.header-right{display:flex;align-items:center;gap:10px}.header-right form{display:block;margin:0}.header-right .form-actions{margin:0}header button{font-size:11px;padding:7px 12px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:650;color:var(--muted)}main{max-width:1600px;padding:32px 36px 20px;margin:auto}.page-title{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:30px}.page-title .eyebrow{margin-bottom:8px}.page-title p{font-size:12px;margin-bottom:0}.page-title form{min-width:240px;max-width:350px}.hero{display:flex;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(110deg,#132f50,#24547b);border-radius:13px;color:#fff;padding:28px 30px;margin-bottom:24px}.hero h2{font-size:26px;margin-top:12px}.hero p{color:#c5d7e7;font-size:12px;margin:8px 0}.badge{display:inline-block;padding:4px 9px;border-radius:5px;background:#e5f0fc;color:#265384;font-size:10px;font-weight:700}.hero .badge{background:#244e67;color:#c7f5df}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:24px}.stat{padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:11px}.stat>span{color:var(--muted);font-size:11px;font-weight:600}.stat strong{display:block;font-size:32px;line-height:1.5;letter-spacing:-1px}.stat small{font-size:10px}.card{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow);margin-bottom:22px;min-width:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.section-head p{font-size:12px;margin-bottom:20px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0}.wide,.form-actions{grid-column:1/-1}.form-actions{margin-top:2px}.check{flex-direction:row;align-items:center;gap:9px;font-size:12px;margin:8px 0}fieldset{border:1px solid var(--line);border-radius:8px}legend{font-size:12px;color:var(--muted)}.filters{display:flex;align-items:end;gap:12px;flex-wrap:wrap;margin-bottom:20px}.filters label{flex:1;min-width:130px}.filters button{padding:10px 22px}.table-wrap{width:100%;overflow-x:auto;margin-top:18px}table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}th{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:650;background:var(--bg);padding:12px 14px;white-space:nowrap}td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}td input,td select{min-width:115px;padding:8px}td input[type=checkbox]{min-width:17px}td .form-grid{display:block;margin:0}td button{padding:6px 9px;font-size:10px}tbody tr:last-child td{border-bottom:0}.empty{text-align:center;color:var(--muted);padding:36px}.alert,.notice{border:1px solid #eab5a9;background:#fff0eb;color:#974127;padding:13px 16px;border-radius:8px;margin-bottom:18px;font-size:12px}.notice{background:#eaf7f0;border-color:#b7dfc9;color:#275641}.dark .alert{background:#462924;color:#ffc3b2}.dark .notice{background:#203d33;color:#c9f3df}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.toolbar .button{font-size:11px;padding:8px 12px}.mini-stats{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.mini-stats span{padding:10px 14px;border:1px solid var(--line);border-radius:6px;font-size:12px}.mini-stats b{margin-left:8px}details>summary{cursor:pointer;font-size:14px;font-weight:650;color:var(--primary);padding:10px 0}details.card>section{border:0;padding:12px 0;margin:0}.progress{height:8px;border-radius:8px;background:var(--bg);margin:25px 0}.progress i{display:block;height:8px;border-radius:8px;background:#42b48a}.seat-scroll{overflow:auto}.front{text-align:center;padding:10px;border:1px dashed var(--line);font-size:11px;letter-spacing:1px;color:var(--muted);min-width:400px}.seats{display:grid;gap:10px;padding:18px 0;min-width:400px}.seat{padding:12px 8px;min-height:100px;border:1px solid #adc7e5;border-top:3px solid #3d83ce;border-radius:6px;display:flex;flex-direction:column;text-align:center;font-size:11px}.seat b{margin:6px 0}.seat.disabled{background:var(--bg);color:var(--muted);border:1px dashed var(--line)}.school-map{position:relative;height:430px;border:1px solid var(--line);border-radius:8px;background:repeating-linear-gradient(0deg,transparent,transparent 29px,var(--line) 30px),repeating-linear-gradient(90deg,transparent,transparent 29px,var(--line) 30px);overflow:hidden}.school-map img{width:100%;height:100%;object-fit:fill}.map-marker{position:absolute;border:2px solid white;border-radius:6px;padding:6px 10px;background:#2461d4;color:white;font-size:11px;font-weight:700}.letterhead{max-width:100%;max-height:180px}.assignment{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.assignment form{margin:0;display:block}.assignment button{padding:7px 10px;font-size:10px}.token{display:block;word-break:break-all;user-select:all;padding:15px;background:#fff;color:#17432b;margin-top:12px}footer{color:var(--muted);font-size:10px;letter-spacing:.4px;padding:20px 0;border-top:1px solid var(--line);margin-top:20px}.icon-button{display:none}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;gap:8vw;padding:40px;background:radial-gradient(ellipse at 20% 20%,#254e70,#0c2139 65%);color:#fff}.login-intro{max-width:560px}.login-intro .eyebrow{color:#a8d9c9}.login-intro h1{font-size:48px;letter-spacing:-2px;line-height:1.2;margin:26px 0}.login-intro p{color:#a8bed3;font-size:14px}.login-grid{display:flex;flex-direction:column;gap:18px;margin-top:45px}.login-grid span{font-size:12px;color:#91abc4}.login-grid b{margin-left:20px;color:#d8e5f2;font-weight:500}.login-card{background:#fff;color:#142b46;border:1px solid #ffffff50;border-radius:18px;padding:40px;width:400px;max-width:100%;box-shadow:0 20px 80px #0003}.login-card h2,.login-card h1{margin-top:24px;font-size:25px}.login-card .form-grid{display:flex;flex-direction:column;margin-top:28px}.login-card input{background:#fff;color:#142b46}.login-card button{width:100%;margin-top:8px}.login-card p{font-size:12px}.login-card .brand-mark{width:54px;height:54px;font-size:24px}
@media(min-width:1600px){main{padding-top:42px}.card{padding:28px}}
@media(max-width:1150px){aside{width:222px}.shell{margin-left:222px}main{padding:26px 24px}.two-col{grid-template-columns:1fr}.stats{gap:12px}.stat{padding:16px}.page-title{align-items:start}h1{font-size:25px}.login-intro h1{font-size:40px}}
@media(max-width:780px){aside{transform:translateX(-100%);width:252px;transition:transform .2s}.nav-open aside{transform:translateX(0)}.shell{margin-left:0}header{height:62px;padding:0 18px}.icon-button{display:block;background:transparent;color:var(--ink);font-size:19px;padding:4px}.eyebrow{font-size:8px}main{padding:22px 16px}.page-title{flex-direction:column;gap:18px;margin-bottom:22px}.page-title form{width:100%;max-width:none}.stats{grid-template-columns:1fr 1fr;gap:10px}.stat strong{font-size:28px}.stat small{font-size:9px}.hero{padding:23px 20px;align-items:start;flex-direction:column}.hero h2{font-size:23px}.card{padding:18px}.form-grid{grid-template-columns:1fr}.two-col{gap:0}.filters{gap:10px}.filters label{min-width:120px}.filters button{width:100%}.assignment{align-items:start;flex-direction:column}.school-map{height:300px}.login{padding:24px;min-height:100dvh}.login-intro{display:none}.login-card{padding:30px}.header-right{gap:6px}.header-right button{padding:6px 9px}td,th{padding:10px}.table-wrap{margin-top:14px}}
@media print{aside,header,footer,.button,button{display:none}.shell{margin:0}main{padding:0}.card{break-inside:avoid;box-shadow:none;border:0}thead{display:table-header-group}}