:root{color-scheme:light;--bg:#f6f5f2;--paper:#fff;--ink:#1e201d;--muted:#6f716b;--line:#e6e3dc;--accent:#d85f27;--soft:#fff0e8;--ok:#267a50;--warn:#a76314;--bad:#b33b32;--shadow:0 1px 2px #1818140f,0 10px 28px #1818140d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:3px solid #d85f2747;outline-offset:2px}svg{width:19px;height:19px;display:block}.muted{color:var(--muted)}.num{font-variant-numeric:tabular-nums}.danger{color:var(--bad)}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;font-size:16px}.mark{width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center}.landing{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}.hero{padding:clamp(34px,6vw,88px);background:#242620;color:#fff;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:520px;height:520px;border:1px solid #ffffff1a;border-radius:50%;right:-240px;bottom:-240px;box-shadow:0 0 0 70px #ffffff08,0 0 0 140px #ffffff05}.hero-copy,.hero .brand,.proof{position:relative;z-index:1}.kicker{font-size:12px;letter-spacing:.12em;color:#d8b7a5;margin-bottom:18px}.hero h1{font-size:clamp(42px,5vw,68px);line-height:1.06;letter-spacing:-.045em;margin:0 0 24px;text-wrap:balance}.hero p{font-size:17px;color:#c8cbc1;max-width:490px}.proof{display:flex;gap:30px}.proof b{display:block;font-size:22px}.proof span{color:#aeb1a8;font-size:12px}.entry{padding:clamp(30px,7vw,100px);display:grid;place-items:center}.entry>div{width:min(440px,100%)}h2{font-size:26px;letter-spacing:-.025em;margin:0 0 4px}.entry h2{font-size:30px}.entry>div>p{color:var(--muted);margin:5px 0 26px}.tabs{display:grid;grid-template-columns:1fr 1fr;background:#ebe9e3;padding:4px;border-radius:10px;margin-bottom:24px}.tabs button{border:0;background:transparent;padding:10px;border-radius:7px;color:var(--muted)}.tabs .active{background:#fff;color:var(--ink);box-shadow:0 1px 4px #00000014}
.field{display:grid;gap:7px;margin-bottom:15px}.field label{font-weight:650;font-size:13px}input,textarea,select{width:100%;min-height:44px;border:1px solid #dcd9d2;background:#fff;border-radius:6px;padding:10px 12px}textarea{min-height:88px;resize:vertical}input:focus,textarea:focus,select:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--soft)}.btn{min-height:41px;border:1px solid transparent;border-radius:7px;padding:9px 14px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-weight:650;text-decoration:none}.btn.primary{background:var(--accent);color:#fff}.btn.secondary{background:#fff;border-color:var(--line)}.btn.ghost{background:transparent;color:var(--muted)}.btn:hover{filter:brightness(.96)}.full{width:100%}.hint{font-size:12px;color:var(--muted)}code{background:#ebe9e3;padding:2px 5px;border-radius:4px}
.shell{min-height:100vh;display:grid;grid-template-columns:224px 1fr}.sidebar{height:100vh;position:sticky;top:0;padding:20px 14px;background:#efede8;border-right:1px solid var(--line);display:flex;flex-direction:column}.sidebar .brand{padding:2px 8px 24px}.nav{display:grid;gap:3px}.nav button{display:flex;align-items:center;gap:11px;border:0;background:transparent;padding:10px 11px;border-radius:7px;text-align:left;color:#62645e}.nav button:hover{background:#e6e3dc}.nav .active{background:var(--soft);color:var(--accent);font-weight:650}.sidefoot{margin-top:auto;border-top:1px solid #dedbd3;padding:14px 8px}.sidefoot b{display:block}.sidefoot button{border:0;background:0;padding:7px 0;color:var(--muted)}.main{min-width:0}.topbar{height:70px;padding:0 30px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#f6f5f2e8;backdrop-filter:blur(10px);position:sticky;top:0;z-index:10}.topbar h1{font-size:18px;margin:0}.content{max-width:1440px;margin:auto;padding:28px 30px 56px}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.section-head p{color:var(--muted);margin:0}.metrics{display:grid;grid-template-columns:1.25fr repeat(3,1fr);gap:12px;margin-bottom:16px}.metric,.panel{background:var(--paper);border:1px solid var(--line);border-radius:10px}.metric{padding:17px 18px;min-height:112px}.metric.primary{background:var(--soft);border-color:#f1d2c2}.metric span,.metric small{color:var(--muted)}.metric strong{display:block;font-size:30px;letter-spacing:-.035em;margin:4px 0}.metric.primary strong{font-size:36px;color:var(--accent)}.panel{box-shadow:var(--shadow)}.grid{display:grid;grid-template-columns:1.35fr .65fr;gap:14px}.panel-head{padding:15px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.panel-head h3{margin:0;font-size:15px}.panel-body{padding:17px}
.tracks,.activity,.reqs{display:grid;gap:12px}.trackrow{display:grid;grid-template-columns:115px 1fr 40px;align-items:center;gap:12px}.track{height:8px;background:#edeae4;border-radius:8px;overflow:hidden}.track i{display:block;height:100%;background:var(--accent)}.activity>div{display:grid;grid-template-columns:8px 1fr;gap:10px;padding:8px 0;border-bottom:1px solid #f0eee9}.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:7px}.activity p{margin:0}.activity time{font-size:12px;color:var(--muted)}.toolbar{display:flex;gap:8px;margin-bottom:12px}.search{position:relative;max-width:330px;flex:1}.search svg{position:absolute;left:11px;top:13px;color:var(--muted)}.search input{padding-left:37px}.tablewrap{overflow:auto}.table{width:100%;min-width:760px;border-collapse:collapse}.table th,.table td{padding:11px 14px;border-bottom:1px solid #f0eee9;text-align:left}.table th{font-size:12px;color:var(--muted)}.student{display:flex;gap:9px;align-items:center}.avatar{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#e9e5dc;font-size:12px;font-weight:700}.student b,.student small{display:block}.student small{color:var(--muted)}.status{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}.status:before{content:"";width:7px;height:7px;border-radius:50%;background:#b6b5b0}.status.approved:before{background:var(--ok)}.status.pending:before{background:var(--warn)}.status.rejected:before{background:var(--bad)}.actions{display:flex;gap:5px;justify-content:flex-end}.linkbtn{border:0;background:transparent;padding:5px;color:var(--muted)}.req{display:grid;grid-template-columns:1fr auto;gap:10px;border:1px solid var(--line);border-radius:8px;padding:14px}.req h4{margin:0 0 2px}.req p{margin:0;color:var(--muted);font-size:13px}.required{color:var(--accent);font-size:12px;margin-left:6px}
.backdrop{position:fixed;inset:0;background:#18191673;z-index:30;display:grid;place-items:center;padding:18px}.modal{background:#fff;width:min(520px,100%);max-height:90vh;overflow:auto;border-radius:14px;box-shadow:0 20px 70px #0003}.modal-head,.modal-foot{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.modal-head h3{margin:0}.modal-body{padding:20px}.close{border:0;background:transparent}.modal-foot{border-top:1px solid var(--line);border-bottom:0;justify-content:flex-end}.inline{display:grid;grid-template-columns:1fr 1fr;gap:12px}.check{display:flex;gap:8px;align-items:center}.check input{width:18px;min-height:18px}.empty{text-align:center;padding:28px;color:var(--muted)}
.student-header{height:68px;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1040px)/2))}.student-main{max-width:1040px;margin:auto;padding:34px 20px 60px}.welcome{display:flex;justify-content:space-between;align-items:start;margin-bottom:24px}.welcome h1{font-size:32px;letter-spacing:-.035em;margin:0}.welcome p{margin:3px 0;color:var(--muted)}.deadline{background:var(--soft);color:#8e3b17;padding:9px 12px;border-radius:8px}.notice{padding:12px 14px;border:1px solid #e6dbcb;background:#fffaf2;border-radius:8px;margin-bottom:16px}.student-grid{display:grid;grid-template-columns:1fr 290px;gap:14px}.materials{display:grid;gap:10px}.material{background:#fff;border:1px solid var(--line);border-radius:10px;padding:17px}.material-top,.fileline{display:flex;justify-content:space-between;gap:12px}.material h3{margin:0}.material p{margin:2px 0;color:var(--muted);font-size:13px}.fileline{align-items:center;margin-top:14px;padding-top:13px;border-top:1px solid #f0eee9}.filemeta{min-width:0}.filemeta b,.filemeta small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.filemeta small{color:var(--muted)}.upload input{position:absolute;width:1px;height:1px;opacity:0}.summary{position:sticky;top:88px;height:max-content}.ring{width:120px;height:120px;margin:8px auto 18px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--accent) var(--p),#edeae4 0);position:relative}.ring:after{content:"";position:absolute;inset:10px;background:#fff;border-radius:50%}.ring strong{z-index:1;font-size:28px}.sumlines{display:grid;gap:9px}.sumlines div{display:flex;justify-content:space-between}.reviewnote{color:var(--bad)!important}.toast{position:fixed;right:22px;bottom:22px;background:#252721;color:#fff;padding:10px 14px;border-radius:8px;opacity:0;transform:translateY(8px);transition:.2s;z-index:50}.toast.show{opacity:1;transform:none}
@media(max-width:900px){.landing{grid-template-columns:1fr}.hero{min-height:410px;padding:36px}.entry{padding:50px 24px}.shell{grid-template-columns:1fr}.sidebar{display:none}.content{padding:22px 18px}.topbar{padding:0 18px}.metrics{grid-template-columns:1fr 1fr}.grid,.student-grid{grid-template-columns:1fr}.summary{position:static;order:-1}}@media(max-width:580px){.hero{min-height:360px}.hero h1{font-size:39px}.metrics{grid-template-columns:1fr}.welcome{display:block}.deadline{display:inline-block;margin-top:10px}.material-top,.fileline{display:block}.upload{width:100%;margin-top:9px}.inline{grid-template-columns:1fr}.trackrow{grid-template-columns:85px 1fr 35px}}@media(prefers-reduced-motion:reduce){*{transition-duration:.01ms!important}}