@import url('/static/fonts.css');
:root{--ink:#172b28;--green:#174d42;--deep:#123632;--muted:#73817c;--line:#dfe5e0;--bg:#f3f5f2;--white:#fff;--gold:#aa823c;--pale:#eaf1ec;--red:#a7493c;--radius:7px}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:'Interface',Arial,sans-serif;color:var(--ink);font-size:15px;line-height:1.55}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h1{font-size:30px;line-height:1.25;font-weight:600;letter-spacing:-.8px}h2{font-size:19px;font-weight:600;letter-spacing:-.2px}h3{font-size:16px;font-weight:600}small{font-size:12px}.muted{color:var(--muted)}.eyebrow{text-transform:uppercase;letter-spacing:1.8px;font-size:11px;font-weight:600}.sidebar{position:fixed;inset:0 auto 0 0;width:244px;background:var(--deep);color:#d6e2dc;display:flex;flex-direction:column;padding:28px 18px 18px;z-index:20}.brand{font-size:28px;font-weight:600;color:white;letter-spacing:-1px;padding:0 16px;display:flex;gap:9px;align-items:center}.brand span{font-weight:400;color:#90b9aa}.brand-sub{margin:5px 16px 28px;font-size:11px;color:#a4beb2;letter-spacing:1.2px;text-transform:uppercase}.nav-label{font-size:10px;color:#9db5aa;letter-spacing:1.5px;margin:23px 16px 8px;text-transform:uppercase}.nav-link{display:flex;align-items:center;gap:12px;padding:10px 15px;font-size:14px;color:#d1dfd7;border-radius:4px;margin:2px 0}.nav-link:hover{background:#ffffff09}.nav-link.active{background:#315b4f;color:white}.nav-link svg{width:18px;height:18px;stroke-width:1.7}.sidebar-bottom{margin-top:auto;padding:20px 14px 0;border-top:1px solid #ffffff20;font-size:12px;color:#a7bfb2}.sidebar-bottom strong{color:#e4ede8;display:block;font-weight:500}.workspace{margin-left:244px;min-height:100vh}.topbar{height:78px;background:#fff;border-bottom:1px solid var(--line);padding:0 38px;display:flex;align-items:center;justify-content:space-between;gap:20px}.crumb{font-size:13px;color:#7b8580}.crumb b{font-weight:500;color:var(--ink);margin-left:12px}.top-right{display:flex;align-items:center;gap:22px}.semester{color:var(--muted);font-size:12px;padding-right:22px;border-right:1px solid var(--line)}.avatar{display:inline-flex;width:37px;height:37px;align-items:center;justify-content:center;background:#e5ece6;color:#2c5748;font-size:13px;font-weight:600;border-radius:50%;flex-shrink:0}.account{display:flex;align-items:center;gap:10px}.account strong{font-size:12px;display:block}.account small{color:var(--muted);font-size:11px}.main{padding:34px 38px 45px;max-width:1700px;margin:auto}.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px;gap:18px}.page-head p{color:var(--muted);font-size:14px;margin-top:8px}.btn{border:1px solid var(--line);background:white;border-radius:5px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:13px;font-weight:500;min-height:40px;color:var(--ink)}.btn:hover{background:#edf2ed}.btn.primary{background:var(--green);border-color:var(--green);color:#fff}.btn.primary:hover{background:#0e3b30}.btn.soft{background:var(--pale);border-color:transparent;color:var(--green)}.btn.danger{color:var(--red)}.btn:disabled{opacity:.55;cursor:wait}.btn svg{width:16px;height:16px}.text-link{font-size:13px;color:var(--green);font-weight:500;display:inline-flex;gap:6px;align-items:center}.text-link svg{width:15px;height:15px}.grid{display:grid;gap:22px}.cols-2{grid-template-columns:1fr 1fr}.cols-3{grid-template-columns:repeat(3,1fr)}.cols-4{grid-template-columns:repeat(4,1fr)}.dashboard-grid{grid-template-columns:minmax(0,1.75fr) minmax(280px,1fr)}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.panel-pad{padding:23px}.panel-head{padding:20px 23px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}.panel-head small{color:var(--muted)}.metric{padding:20px 23px;background:white;border:1px solid var(--line);border-radius:var(--radius)}.metric-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.metric-top svg{width:18px;height:18px;color:#839889}.metric-value{font-size:32px;letter-spacing:-1px;line-height:1.3;margin-top:14px;font-weight:500}.metric-bottom{font-size:11px;color:var(--muted);margin-top:6px}.metric-bottom .up{color:var(--green)}.welcome{padding:30px;background:#e5ede6;border:1px solid #d4dfd5;border-radius:var(--radius);position:relative;overflow:hidden;min-height:183px;display:flex;justify-content:space-between;gap:20px;margin-bottom:24px}.welcome h2{font-size:25px;font-weight:500;margin:7px 0}.welcome p{font-size:14px;max-width:500px;color:#5c6f62}.welcome-art{width:144px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.welcome-art svg{width:140px;height:140px}.section-gap{margin-top:24px}.subhead{display:flex;align-items:center;justify-content:space-between;margin:28px 0 15px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.course-card{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}.course-card:hover{border-color:#9cab9e}.course-photo{height:143px;background:#d5dfd8;position:relative;overflow:hidden}.course-photo img{width:100%;height:100%;object-fit:cover;filter:saturate(.65)}.course-photo .badge{position:absolute;top:13px;left:14px;background:#fffdf2ef;color:#42554a;border:0;font-size:10px}.course-body{padding:18px 20px 19px}.course-body h3{font-size:17px;line-height:1.35;margin-bottom:8px;min-height:46px}.course-meta{font-size:12px;color:var(--muted);margin-bottom:19px}.course-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;margin-top:10px}.progress{height:5px;background:#ebefea;border-radius:2px;overflow:hidden}.progress i{display:block;height:100%;background:#49755b;border-radius:2px}.badge{display:inline-block;border:1px solid #dce6dd;background:#edf4ed;color:#487151;border-radius:4px;font-size:11px;padding:3px 8px;font-weight:500;white-space:nowrap}.badge.amber{background:#faf4e5;border-color:#eadfbe;color:#957126}.badge.gray{background:#f2f4f2;border-color:#e1e5e1;color:#758078}.badge.red{background:#fff0ea;color:#a04c39;border-color:#f2d8ce}.list-row{padding:17px 23px;display:flex;align-items:center;gap:15px;border-bottom:1px solid #edf0eb}.list-row:last-child{border-bottom:0}.list-row .grow{flex:1;min-width:0}.list-row h3{font-size:14px;font-weight:500}.list-row p{font-size:12px;color:var(--muted);margin-top:3px}.list-number{color:#9cab9c;font-size:21px;min-width:27px}.date-block{padding:5px 10px;border:1px solid var(--line);text-align:center;width:50px;line-height:1.2;background:#f8faf6;flex-shrink:0}.date-block strong{display:block;font-size:20px;font-weight:500}.date-block small{font-size:10px;text-transform:uppercase;color:var(--muted)}.chart{padding:18px 22px}.chart svg{width:100%;height:auto;display:block}.legend{display:flex;gap:20px;font-size:11px;color:var(--muted);margin-top:10px}.legend span:before{content:'';display:inline-block;width:7px;height:7px;background:var(--green);margin-right:6px}.legend span:last-child:before{background:#b1bcae}.tabs{display:flex;gap:27px;border-bottom:1px solid var(--line);margin:0 0 24px;overflow:auto}.tab{padding:12px 0 13px;font-size:13px;white-space:nowrap;color:var(--muted);border-bottom:2px solid transparent}.tab.active{color:var(--green);border-color:var(--green);font-weight:600}.filters{display:flex;gap:12px;margin-bottom:23px;align-items:center}.input,select,textarea{width:100%;padding:11px 13px;border:1px solid #cfd8d0;border-radius:4px;background:#fff;color:var(--ink);font-size:14px}.input:focus,select:focus,textarea:focus{border-color:var(--green);outline:2px solid #dce9df}textarea{resize:vertical;min-height:110px}.filters .input{max-width:380px}.filters select{width:auto;min-width:180px}.field{margin:17px 0}.field label{display:block;font-size:13px;font-weight:500;margin-bottom:7px}.field small{display:block;color:var(--muted);margin-top:5px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}th{background:#f8faf6;color:#738071;font-size:11px;font-weight:500;letter-spacing:.4px;padding:13px 19px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:15px 19px;border-bottom:1px solid #edf0eb}tr:last-child td{border-bottom:0}td .progress{width:100px;display:inline-block;margin-right:7px;vertical-align:middle}.person{display:flex;align-items:center;gap:10px}.person small{display:block;color:var(--muted);font-size:11px}.empty{padding:50px 25px;text-align:center;color:var(--muted)}.empty h3{color:var(--ink);margin-bottom:7px}.note{font-size:12px;color:var(--muted);margin:15px 0;line-height:1.6}.reading{font-family:Georgia,'Times New Roman',serif;font-size:20px;line-height:1.85;max-width:810px}.reading p{margin-bottom:20px}.reading h2{font-family:'Interface',Arial,sans-serif;font-size:23px;margin-bottom:22px}.lesson-layout{grid-template-columns:270px minmax(0,1fr)}.lesson-nav{padding:12px}.lesson-nav a{display:flex;gap:9px;padding:13px 10px;font-size:13px;border-bottom:1px solid var(--line)}.lesson-nav a.active{background:var(--pale);color:var(--green)}.lesson-nav svg{width:17px;height:17px;flex-shrink:0}.lesson-content{padding:32px 40px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:23px}.question{font-size:23px;line-height:1.5;margin:16px 0 23px}.option{display:flex;gap:13px;align-items:center;padding:15px 17px;border:1px solid var(--line);margin-bottom:11px;border-radius:5px;cursor:pointer}.option:has(input:checked){border-color:var(--green);background:#eef5ef}.option input{accent-color:var(--green);width:17px;height:17px}.result{border-left:3px solid var(--green);padding:13px 18px;background:#f1f6f0;margin-top:22px;font-size:14px}.result.wrong{border-color:var(--gold);background:#fcf7eb}.result p{margin:8px 0}.chat-layout{grid-template-columns:minmax(0,1fr) 300px}.chat-messages{height:485px;overflow-y:auto;padding:25px}.message{margin-bottom:24px;max-width:91%}.message.user{margin-left:auto}.message-label{font-size:11px;color:var(--muted);margin-bottom:7px}.message-text{padding:15px 18px;background:#f0f3ed;white-space:pre-wrap;font-size:14px;line-height:1.75;border-radius:4px}.message.user .message-text{background:#e1ede4}.chat-form{border-top:1px solid var(--line);padding:17px;display:flex;gap:10px;align-items:flex-end}.chat-form textarea{min-height:48px;max-height:160px}.chat-intro{padding:40px;max-width:650px;margin:30px auto}.chat-intro h2{font-size:24px;margin-bottom:14px}.suggestion{border:1px solid var(--line);padding:12px 14px;background:white;text-align:left;border-radius:4px;display:block;width:100%;margin-top:12px;font-size:13px;color:var(--green)}.project-card{padding:23px}.project-card h3{font-size:18px;margin:15px 0 10px;line-height:1.4}.project-card p{font-size:13px;color:var(--muted);margin-bottom:25px;min-height:62px}.project-card .bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:17px;font-size:12px}.tag{font-size:11px;color:var(--muted)}.bar-row{display:grid;grid-template-columns:1fr 130px 40px;gap:12px;align-items:center;margin-bottom:18px;font-size:12px}.bar-row strong{font-weight:500;text-align:right}.timeline{border-left:1px solid #d6e0d3;margin-left:5px;padding-left:25px}.timeline-item{position:relative;margin-bottom:25px}.timeline-item:before{content:'';position:absolute;left:-30px;top:6px;width:9px;height:9px;border-radius:50%;background:#6e8f70}.timeline-item h3{font-size:14px}.timeline-item p{font-size:12px;color:var(--muted);margin-top:5px}.boot{padding:20vh 15vw;font-size:36px;letter-spacing:-1px;color:var(--green)}.boot span{display:block;font-size:15px;color:var(--muted);margin-top:15px}.login{display:grid;grid-template-columns:1.1fr 1fr;min-height:100vh;background:#fff}.login-side{background:var(--deep);padding:50px 65px;color:white;display:flex;flex-direction:column;position:relative;overflow:hidden}.login-side .brand{padding:0}.login-side h1{font-family:Georgia,serif;font-weight:400;font-size:45px;letter-spacing:-1px;line-height:1.25;max-width:530px;margin-top:80px}.login-side p{max-width:400px;margin-top:23px;color:#b4c9bc;font-size:15px}.login-image{margin-top:35px;width:100%;height:220px;object-fit:cover;filter:saturate(.4);opacity:.8}.login-side footer{margin-top:auto;padding-top:30px;font-size:11px;color:#a7bfb1}.login-main{display:flex;align-items:center;justify-content:center;padding:45px}.login-form{width:100%;max-width:375px}.login-form h2{font-size:29px;letter-spacing:-.5px;margin:13px 0}.login-form>p{color:var(--muted);font-size:14px;margin-bottom:29px}.login-form .btn{width:100%;margin-top:8px}.login-foot{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;color:var(--muted);font-size:12px}.error{color:var(--red);font-size:13px;margin:12px 0}.mobile-menu{display:none}#toast{position:fixed;right:28px;bottom:25px;padding:14px 22px;background:var(--deep);color:white;font-size:14px;border-radius:5px;box-shadow:0 5px 25px #0002;z-index:100;max-width:450px;display:none}dialog{border:1px solid var(--line);border-radius:7px;padding:0;width:620px;max-width:94vw;max-height:90vh;color:var(--ink)}dialog::backdrop{background:#142b2670}dialog .modal-body{padding:27px}dialog .modal-head{padding:18px 27px;background:#f6f8f3;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.close{border:0;background:none;font-size:25px;color:var(--muted)}.graph{width:100%;height:auto;display:block}.graph text{font-family:'Interface',Arial,sans-serif}.footer-line{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:20px;margin-top:35px;color:#8a948b;font-size:11px}.status-dot{display:inline-block;width:6px;height:6px;background:#688568;border-radius:50%;margin-right:7px}.horizontal-stat{display:flex;align-items:center;gap:16px}.file-icon{width:41px;height:48px;background:#eef2ea;border:1px solid #dbe4d6;display:flex;align-items:center;justify-content:center;color:#658054;font-size:10px;flex-shrink:0}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.calendar-cell{min-height:125px;background:white;padding:10px;font-size:12px}.calendar-cell.head{min-height:0;color:var(--muted);background:#f8faf7;text-align:center}.calendar-cell.today{background:#edf3e9}.calendar-event{display:block;background:#e7efe4;border-left:2px solid #6b875d;padding:5px 7px;font-size:10px;margin-top:8px}.nowrap{white-space:nowrap}.review{padding:17px 0;border-bottom:1px solid var(--line)}.review p{margin-top:8px;white-space:pre-wrap;font-size:14px}.code-label{font-family:monospace;font-size:12px}.split{display:flex;align-items:center;justify-content:space-between;gap:15px}.loading{padding:70px;text-align:center;color:var(--muted)}
@media(min-width:1550px){.course-photo{height:170px}}@media(max-width:1200px){.sidebar{width:215px}.workspace{margin-left:215px}.main{padding:28px 25px}.topbar{padding:0 25px}.course-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1.5fr 1fr}.chat-layout{grid-template-columns:1fr}.chat-aside{display:none}.cols-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:850px){.sidebar{transform:translateX(-100%);width:240px;transition:transform .2s}.sidebar.open{transform:translateX(0)}.workspace{margin-left:0}.mobile-menu{display:block;border:0;background:none;font-size:22px;color:var(--green)}.topbar{height:65px;padding:0 17px}.semester,.crumb{display:none}.main{padding:25px 18px}.dashboard-grid,.cols-2,.cols-3{grid-template-columns:1fr}.page-head{align-items:flex-start}.page-head h1{font-size:26px}.page-head .btn{padding:9px 12px}.welcome-art{display:none}.lesson-layout{grid-template-columns:1fr}.lesson-nav{display:flex;overflow:auto}.lesson-nav a{min-width:180px}.lesson-content{padding:24px}.reading{font-size:18px}.login{grid-template-columns:1fr}.login-side{display:none}.login-main{min-height:100vh;padding:30px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.filters{flex-wrap:wrap}.calendar-cell{min-height:85px;padding:5px}.calendar-event{font-size:9px;padding:3px}.footer-line{gap:20px}.chat-messages{height:420px}}
@media(max-width:530px){.course-grid{grid-template-columns:1fr}.cols-4{gap:12px}.metric{padding:16px}.metric-value{font-size:28px}.welcome{padding:23px}.page-head{flex-wrap:wrap}.account strong{max-width:170px;overflow:hidden;text-overflow:ellipsis}.top-right{gap:9px}.calendar-event{overflow:hidden;max-height:34px}.bar-row{grid-template-columns:1fr 80px 35px}.footer-line{flex-direction:column;gap:5px}.chat-intro{padding:20px;margin:10px auto}}

.sidebar{overflow-y:auto;scrollbar-width:thin;scrollbar-color:#476759 transparent}.sidebar-bottom{flex-shrink:0}.nav-link{flex-shrink:0}.list-row>svg{width:18px;height:18px;flex-shrink:0}@media(max-width:530px){.dashboard-grid .course-grid{grid-template-columns:1fr!important}}