:root{--navy:#102a43;--teal:#0e7c71;--teal-dark:#0a5f56;--ink:#1b2a3a;--muted:#647587;--line:#e2e8f0;--bg:#edf2f4;--white:#fff;--tint:#e6f4f1;--radius:12px;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.55}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{outline-offset:4px}:focus-visible{outline:3px solid #12a594}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}h1,h2,h3,p{margin-top:0}h1{font-size:2.15rem;line-height:1.2;letter-spacing:-.06rem;font-weight:650;margin-bottom:12px}h2{font-size:1.35rem;line-height:1.35;font-weight:650;letter-spacing:-.02rem}h3{font-size:1rem;line-height:1.5}p{margin-bottom:16px}small,.small{font-size:.875rem}strong{font-weight:600}.muted{color:var(--muted)}.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.12em;color:var(--teal);margin-bottom:16px}.skip-link{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:20}.skip-link:focus{top:12px}.button{display:inline-flex;justify-content:center;align-items:center;gap:14px;background:var(--teal);border:1px solid var(--teal);color:white;border-radius:7px;padding:11px 18px;font-size:.875rem;font-weight:600;line-height:1.5;text-decoration:none;white-space:normal}.button:hover{background:var(--teal-dark);text-decoration:none}.button.secondary{background:white;border-color:var(--line);color:var(--ink)}.button.secondary:hover{border-color:var(--teal);background:var(--tint)}.button.text-button{background:none;border-color:transparent;color:var(--teal)}.button.danger{background:#fff4f2;border-color:#f4bcb5;color:#a32c23}.button.small{padding:7px 11px}.button.full{width:100%;justify-content:space-between}.button-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.top-gap{margin-top:16px}.form-stack{display:grid;gap:20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.span-two{grid-column:1/-1}label{display:grid;gap:7px;font-size:.875rem;font-weight:600}input,select,textarea{width:100%;border:1px solid #cbd8dd;border-radius:7px;background:white;padding:11px 12px;color:var(--ink);min-height:46px;min-width:0}input::placeholder,textarea::placeholder{color:#829099;font-weight:400}input[type=checkbox]{min-height:20px;width:20px;height:20px;accent-color:var(--teal)}textarea{resize:vertical;min-height:110px}label small{font-weight:400;color:var(--muted)}.check-label{display:flex;align-items:center;gap:9px}summary{cursor:pointer;font-size:.875rem;color:var(--muted)}.help-text{font-size:.8125rem;color:var(--muted);margin-top:28px;margin-bottom:0}.alert{border:1px solid #bfddd5;background:#e9f7f1;border-radius:8px;padding:14px 18px;margin-bottom:22px;font-size:.9375rem}.alert.error{background:#fff1ef;border-color:#f1c4bc;color:#963d30}.notice{background:#ebf4fb;border:1px solid #cbdeeb;color:#325e7b;padding:16px 20px;border-radius:9px;margin-bottom:24px}.notice a{font-weight:600}.badge{display:inline-flex;font-size:.75rem;font-weight:600;line-height:1.4;white-space:nowrap;padding:5px 9px;border-radius:5px;background:#edf1f4;color:#5a6c78}.badge.available,.badge.approved{background:#e2f3eb;color:#23754f}.badge.submitted{background:#e8f0ff;color:#4164a2}.badge.revision{background:#fff2d9;color:#946619}.badge.released{background:#f9e9e6;color:#9c554a}.badge.mine{background:#e3f4f1;color:var(--teal)}.signed-out{background:#edf2f4}.auth-main{max-width:1160px;padding:40px 30px;margin:auto}.auth-shell{display:grid;grid-template-columns:.95fr 1fr;min-height:700px;background:white;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 18px 65px #1639460b}.auth-story{padding:42px 44px;background:var(--navy);color:white;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;font-size:1.25rem;letter-spacing:-.02rem;font-weight:650;color:inherit;text-decoration:none}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;background:var(--teal);width:35px;height:37px;color:white;border-radius:8px;font-size:1.35rem;font-weight:750}.story-content{margin:auto 0;padding:60px 0 36px}.auth-story .eyebrow{color:#89d4c7}.auth-story h1{font-size:2.8rem;line-height:1.15;letter-spacing:-.08rem;margin-bottom:22px}.auth-story p{color:#b6c9d1;font-size:.9375rem;max-width:310px;line-height:1.7}.workflow{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:23px}.workflow li{display:flex;align-items:flex-start;gap:16px}.workflow li>span{font-size:.75rem;color:#7ed2c2;background:#23424c;border:1px solid #365760;border-radius:6px;padding:6px 9px}.workflow strong{font-size:.875rem;display:block}.workflow small{font-size:.8125rem;display:block;color:#b6c9d1;margin-top:3px}.story-footer{font-size:.6875rem;letter-spacing:.12em;color:#9eb7c0}.auth-form{align-self:center;padding:50px}.auth-form h2{font-size:1.6rem}.auth-form>.muted{font-size:.9375rem;margin-bottom:30px}.auth-divider{height:1px;background:var(--line);margin:28px 0 20px}.signup-wrap{max-width:720px;margin:0 auto;background:white;border:1px solid var(--line);border-radius:14px;padding:35px 42px}.signup-wrap .brand{margin-bottom:36px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:25px 0}.tabs a{color:var(--muted);padding:12px 18px;font-size:.9375rem}.tabs a.active{color:var(--teal);border-bottom:3px solid var(--teal);font-weight:600}.sidebar{position:fixed;inset:0 auto 0 0;width:240px;background:var(--navy);color:#eef7fa;display:flex;flex-direction:column;padding:32px 22px;z-index:5}.workspace-label{font-size:.6875rem;letter-spacing:.1em;color:#90aab5;margin:46px 10px 13px}.sidebar nav{display:grid;gap:7px}.sidebar nav a{color:#d6e6ea;font-size:.9375rem;padding:11px 13px;border-radius:7px;display:flex;gap:13px;align-items:center}.sidebar nav a:hover{background:#1d3d49;text-decoration:none}.sidebar nav a.active{color:white;background:#25505a}.sidebar nav a>span{font-size:1.25rem;width:21px;line-height:1}.sidebar-note{margin-top:auto;padding:26px 10px;font-size:.8125rem}.sidebar-note p{color:#98b3bd;margin:7px 0 0;line-height:1.65}.profile{border-top:1px solid #36505c;padding-top:22px;display:flex;gap:11px;align-items:center;min-width:0}.profile strong{display:block;font-size:.875rem;overflow-wrap:anywhere}.profile small{display:block;color:#9bb9c2;font-size:.75rem}.avatar{display:grid;place-items:center;width:36px;height:36px;flex-shrink:0;border-radius:50%;background:#1f5a52;color:#a9e5db;font-weight:600}.logout{background:none;color:#a8c2cb;border:0;font-size:.8125rem;padding:15px 0 0 47px}.main{margin-left:240px;padding:40px 44px 20px;min-height:calc(100vh - 60px);max-width:1800px}.page-top{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-bottom:30px}.page-top p{margin-bottom:0}.breadcrumb{font-size:.8125rem;color:var(--muted);margin-bottom:25px}.page-kicker{font-size:.75rem;letter-spacing:.1em;color:var(--muted);margin-bottom:13px;font-weight:600}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:17px;margin-bottom:32px}.stat{padding:23px 25px;background:white;border:1px solid var(--line);border-radius:var(--radius)}.stat span{font-size:.875rem;color:var(--muted)}.stat strong{display:block;font-size:2rem;line-height:1.2;font-weight:650;margin-top:11px;letter-spacing:-.05rem}.stat.accent{background:var(--teal);color:white;border-color:var(--teal)}.stat.accent span{color:#d1ede7}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px}.section-heading h2{margin:0}.section-heading a{font-size:.875rem;font-weight:600}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:25px}.panel.flush{padding:0;overflow:hidden}.panel-header{padding:22px 25px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;align-items:center}.panel-header h2{margin:0}.empty{padding:44px 28px;text-align:center;color:var(--muted)}.empty h3{color:var(--ink);font-size:1.0625rem;margin-bottom:7px}.empty p{max-width:480px;margin:0 auto 20px;font-size:.9375rem}.class-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px;margin-bottom:32px}.class-card{border:1px solid var(--line);border-radius:var(--radius);padding:23px;background:white;display:flex;flex-direction:column}.class-card h3{font-size:1.1rem;margin:13px 0 5px}.class-card p{color:var(--muted);font-size:.875rem;margin-bottom:22px}.class-meta{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:17px;margin-top:auto;font-size:.8125rem;color:var(--muted)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:.875rem}th{font-size:.75rem;font-weight:650;color:var(--muted);background:#f8fafb;padding:13px 20px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:17px 20px;border-bottom:1px solid #e8edef;vertical-align:middle}tbody tr:last-child td{border-bottom:0}td strong{display:block}td small{display:block;color:var(--muted);font-size:.75rem;margin-top:4px}.exam-name{min-width:260px;max-width:520px}.exam-name strong{font-size:.9375rem}.filters{display:grid;grid-template-columns:minmax(220px,2fr) minmax(150px,1fr) minmax(140px,.8fr) auto;gap:12px;align-items:end;margin-bottom:24px}.filters label{font-weight:500}.filters .button{min-height:46px}.selection-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 23px;background:#e6f4f1;border:1px solid #cfe5e0;border-radius:10px;margin-bottom:22px}.selection-bar p{margin:0;font-size:.875rem}.selection-bar strong{color:var(--teal)}.pagination{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:20px 0;font-size:.875rem;color:var(--muted)}.task-card{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:18px;align-items:center;padding:24px;border:1px solid var(--line);background:white;border-radius:10px;margin-bottom:14px}.task-number{display:grid;place-items:center;height:42px;border:1px solid var(--line);border-radius:9px;font-size:.8125rem;color:var(--muted)}.task-card h3{margin:6px 0}.task-card .muted{font-size:.8125rem}.task-actions{display:flex;flex-direction:column;align-items:flex-end;gap:12px}.instructions{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.9375rem}.assignment-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:24px;align-items:start}.assignment-layout>.panel{min-width:0}.detail-list{margin:0;display:grid;gap:13px}.detail-list div{display:flex;justify-content:space-between;gap:20px}.detail-list dt{color:var(--muted);font-size:.875rem}.detail-list dd{margin:0;font-size:.875rem;font-weight:500;text-align:right}.file-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:17px 0;border-top:1px solid var(--line)}.file-row strong{display:block;font-size:.875rem;overflow-wrap:anywhere}.file-row small{display:block;color:var(--muted);font-size:.75rem}.question-preview{border-top:1px solid var(--line);padding:20px 0}.question-preview:last-child{padding-bottom:0}.question-preview ol{padding-left:22px;color:var(--muted);font-size:.875rem}.question-preview p{font-size:.9375rem;margin-bottom:8px;white-space:pre-wrap}.question-preview .explanation{font-size:.875rem;color:var(--muted)}.code{font-family:Consolas,monospace;letter-spacing:.13em;background:var(--tint);color:var(--teal);padding:8px 13px;border-radius:6px;display:inline-block;font-size:1.2rem}.class-banner{display:flex;justify-content:space-between;gap:25px}.progress{height:7px;background:#e0e9ec;border-radius:4px;overflow:hidden;margin-top:12px;display:flex}.progress span{background:var(--teal);flex:1}.progress .unfilled{background:#e0e9ec}.narrow{max-width:790px}.account-form{max-width:520px}.app-footer{margin-left:240px;padding:20px 44px;color:#84939a;font-size:.75rem;display:flex;justify-content:space-between}.user-actions{min-width:200px}.user-actions form{display:flex;gap:8px;margin:6px 0;align-items:center}.user-actions input[type=password]{min-height:35px;padding:6px;font-size:.8125rem}.user-actions details{margin-top:10px}.divider{height:1px;background:var(--line);margin:24px 0}.count{color:var(--muted);font-size:.875rem;font-weight:400;margin-left:10px}.metadata{display:flex;flex-wrap:wrap;gap:9px 20px;font-size:.875rem;color:var(--muted)}.released-list{font-size:.875rem}.released-list li{margin:12px 0}.error-page{max-width:600px;margin:80px auto}.table-check{min-width:42px}.review-note{padding:15px;background:#f4f7f8;border-left:3px solid var(--teal);margin:20px 0}.review-note p:last-child{margin:0}
@media(min-width:1700px){.main{padding-left:65px;padding-right:65px}}
@media(max-width:1100px){.sidebar{width:210px;padding:25px 16px}.main{margin-left:210px;padding:30px 25px}.app-footer{margin-left:210px;padding:20px 25px}.stats{gap:10px}.stat{padding:20px 16px}.assignment-layout{grid-template-columns:1fr}.auth-form{padding:35px}.auth-story{padding:35px}.filters{grid-template-columns:1fr 1fr}.auth-story h1{font-size:2.4rem}}
@media(max-width:760px){.sidebar{position:static;width:100%;padding:18px 20px;display:block}.sidebar .brand{font-size:1.125rem}.workspace-label,.sidebar-note,.profile{display:none}.sidebar nav{display:flex;flex-wrap:wrap;gap:5px;margin-top:17px}.sidebar nav a{padding:8px 10px;font-size:.8125rem}.sidebar nav a>span{display:none}.sidebar>form{position:absolute;top:23px;right:20px}.logout{padding:0}.main{margin:0;padding:25px 18px;min-height:calc(100vh - 210px)}.app-footer{margin:0;padding:18px;font-size:.6875rem}.page-top{align-items:flex-start;flex-wrap:wrap;margin-bottom:24px}.page-top .button{padding:9px 14px}h1{font-size:1.8rem}.stats{grid-template-columns:repeat(2,1fr);margin-bottom:25px}.stat{padding:18px}.stat strong{font-size:1.7rem}.stat span{font-size:.8125rem}.panel{padding:20px}.panel-header{padding:18px}.auth-main{padding:18px}.auth-shell{display:block;min-height:0}.auth-story{padding:24px}.story-content{padding:30px 0 0}.auth-story h1{font-size:1.9rem}.auth-story h1 br{display:none}.auth-story p,.workflow,.story-footer{display:none}.auth-story .eyebrow{margin-bottom:10px}.auth-form{padding:28px 24px}.auth-form h2{font-size:1.4rem}.signup-wrap{padding:25px 22px}.form-grid{grid-template-columns:1fr}.span-two{grid-column:auto}.filters{grid-template-columns:1fr 1fr}.filters label:first-child{grid-column:1/-1}.selection-bar{align-items:flex-start;flex-direction:column;gap:12px;padding:17px}.selection-bar .button{width:100%}.task-card{grid-template-columns:32px minmax(0,1fr);gap:12px;padding:18px}.task-number{height:32px}.task-actions{grid-column:2;align-items:flex-start;flex-direction:row;flex-wrap:wrap}.class-banner{flex-direction:column}.class-grid{grid-template-columns:1fr}th,td{padding:13px 15px}.assignment-layout{gap:0}.metadata{gap:7px 14px}.pagination{flex-wrap:wrap}.detail-list div{flex-wrap:wrap;gap:5px 15px}.detail-list dd{text-align:left}.class-card{padding:20px}}
.username-section{border-top:1px solid var(--line);padding-top:22px}.username-controls{display:flex;gap:10px;margin:7px 0}.username-controls input{flex:1;min-width:0}.username-section p{margin:9px 0 0}.username-section [role=status]{color:var(--teal);overflow-wrap:anywhere}.code{overflow-wrap:anywhere}[hidden]{display:none!important}@media(max-width:760px){.username-controls{flex-direction:column}}
.class-picker{border:1px solid var(--line);border-radius:8px;padding:18px;min-width:0}.class-picker legend{font-weight:600;font-size:.9375rem}.class-picker .check-label{padding:12px 0;border-bottom:1px solid var(--line);align-items:flex-start}.class-picker .check-label small{display:block;margin-top:3px}.class-picker>a{display:inline-block;margin-top:16px}.class-card .badge{align-self:flex-start}.empty .button-row{justify-content:center}.user-actions form{flex-wrap:wrap}
@media(prefers-reduced-motion:no-preference){.button,.sidebar nav a{transition:background .15s,border-color .15s}}