:root{--paper:#fbf8f2;--paper-dim:#f1ece0;--ink:#16213e;--ink-soft:#4a5378;--line:#e4dcc8;--gold:#f0a93c;--gold-deep:#c97f1b;--coral:#ff6f59;--teal:#238c7d;--violet:#6c63c9;--maroon:#671d3b;--white:#fff;--radius-lg:22px;--radius-md:14px;--radius-sm:9px;--shadow:0 1px 2px rgba(22,33,62,.06),0 8px 24px -12px rgba(22,33,62,.18)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:Manrope,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh}.display,h1,h2,h3{font-family:Fraunces,serif;font-weight:600;letter-spacing:-.01em;margin:0}button{font-family:inherit;cursor:pointer}a{color:inherit}::selection{background:var(--gold);color:var(--ink)}:focus-visible{outline:2.5px solid var(--violet);outline-offset:2px;border-radius:4px}.logo{display:flex;align-items:center;gap:10px;font-family:Fraunces,serif;font-weight:600;font-size:20px;color:var(--ink)}.logo .mark-img{height:36px;width:auto;flex-shrink:0;display:block}.logo.on-dark{color:var(--paper)}.logo-plate{background:var(--paper);border-radius:14px;padding:8px 12px;display:inline-flex;align-items:center;box-shadow:0 4px 18px rgba(0,0,0,.22);width:-moz-fit-content;width:fit-content}.logo-plate .mark-img{height:56px}#login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 20px;background:radial-gradient(circle at 12% 15%,rgba(240,169,60,.16),transparent 40%),radial-gradient(circle at 88% 82%,rgba(108,99,201,.14),transparent 45%),var(--paper)}.login-card{width:100%;max-width:920px;background:var(--white);border-radius:28px;box-shadow:var(--shadow);display:grid;grid-template-columns:1.1fr 1fr;overflow:hidden;border:1px solid var(--line)}.login-visual{background:var(--maroon);padding:48px 40px;display:flex;flex-direction:column;justify-content:space-between;color:var(--paper);position:relative;overflow:hidden}.login-visual:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(240,169,60,.25),transparent 35%),radial-gradient(circle at 85% 75%,rgba(108,99,201,.35),transparent 40%)}.orbit-wrap{position:relative;z-index:1;flex:1 1;display:flex;align-items:center;justify-content:center;padding:20px 0}.orbit{position:relative;width:190px;height:190px}.orbit .core{transform:translate(-50%,-50%);width:52px;height:52px;border-radius:50%;background:var(--gold);box-shadow:0 0 40px rgba(240,169,60,.6);display:flex;align-items:center;justify-content:center;font-family:Fraunces,serif;font-weight:700;color:var(--ink);font-size:20px}.orbit .core,.ring{position:absolute;top:50%;left:50%}.ring{border:1.5px solid hsla(40,53%,97%,.35);border-radius:50%}.ring.r1{width:130px;height:130px;margin:-65px 0 0 -65px;animation:spin 14s linear infinite}.ring.r2{width:190px;height:190px;margin:-95px 0 0 -95px;animation:spin 22s linear infinite reverse}.ring .dot{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--coral)}.ring.r1 .dot{top:-4.5px;left:50%;margin-left:-4.5px}.ring.r2 .dot{background:var(--violet);bottom:-4.5px;left:50%;margin-left:-4.5px}@keyframes spin{to{transform:rotate(1turn)}}@media (prefers-reduced-motion:reduce){.ring{animation:none}}.login-visual .quote{position:relative;z-index:1;font-size:14.5px;line-height:1.6;color:hsla(40,53%,97%,.75);max-width:34ch}.login-visual .quote b{color:var(--paper);font-weight:600}.login-form{padding:48px 44px;display:flex;flex-direction:column;gap:26px}.role-switch{display:flex;background:var(--paper-dim);padding:4px;border-radius:12px;gap:4px}.role-switch button{flex:1 1;border:none;background:transparent;padding:11px 10px;border-radius:9px;font-size:14px;font-weight:700;color:var(--ink-soft);transition:all .18s ease}.role-switch button.active{background:var(--white);color:var(--ink);box-shadow:0 2px 8px rgba(22,33,62,.12)}.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-soft);margin-bottom:7px;text-transform:none}.field input{width:100%;padding:13px 14px;border-radius:10px;border:1.5px solid var(--line);font-family:inherit;font-size:15px;background:var(--paper);color:var(--ink)}.field input:focus{border-color:var(--violet);outline:none}.field select{width:100%;padding:13px 14px;border-radius:10px;border:1.5px solid var(--line);font-family:inherit;font-size:15px;background:var(--paper);color:var(--ink)}.field select:focus{border-color:var(--violet);outline:none}.field input:disabled{background:var(--paper-dim);color:var(--ink-soft);cursor:not-allowed}.profile-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px 18px;gap:16px 18px;margin-top:6px}@media (max-width:720px){.profile-grid{grid-template-columns:1fr}}.demo-pick{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1.5px solid var(--line);background:var(--white);padding:8px 13px;border-radius:20px;font-size:13px;font-weight:600;color:var(--ink-soft)}.chip.active{border-color:var(--gold-deep);background:rgba(240,169,60,.12);color:var(--gold-deep)}.enter-btn{margin-top:4px;width:100%;padding:14px;border-radius:12px;border:none;background:var(--ink);color:var(--paper);font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px;transition:transform .12s ease,background .18s ease}.enter-btn:hover{background:#232f52}.enter-btn:active{transform:scale(.98)}.login-note{font-size:12.5px;color:var(--ink-soft);text-align:center}.app{display:none;min-height:100vh;grid-template-columns:236px 1fr}.app.show{display:grid}.sidebar{background:var(--ink);color:var(--paper);padding:26px 18px;display:flex;flex-direction:column;position:-webkit-sticky;position:sticky;top:0;height:100vh}.sidebar .logo{color:var(--paper);margin-bottom:34px;padding:0 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.ic{width:18px;text-align:center;font-size:15px}.nav-item.active{background:hsla(40,53%,97%,.1);color:var(--white)}.nav-item:hover:not(.active){background:hsla(40,53%,97%,.06);color:var(--white)}.sidebar-foot{margin-top:auto;gap:10px;padding:12px;border-radius:12px;background:hsla(40,53%,97%,.06)}.avatar,.sidebar-foot{display:flex;align-items:center}.avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;background:linear-gradient(135deg,var(--gold),var(--coral));justify-content:center;font-weight:700;color:var(--ink);font-size:14px}.sidebar-foot .who{display:flex;flex-direction:column;overflow:hidden}.sidebar-foot .who b{font-size:13px;color:var(--white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-foot .who span{font-size:11.5px;color:hsla(40,53%,97%,.55)}.logout-btn{margin-left:auto;background:transparent;border:none;color:hsla(40,53%,97%,.5);font-size:16px;flex-shrink:0}.logout-btn:hover{color:var(--white)}.main{padding:34px 40px 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1fr;grid-gap:18px;gap:18px;margin-bottom:18px;align-items:start}.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px}.panel h2{font-size:18px;margin-bottom:4px}.panel .panel-sub{font-size:13px;color:var(--ink-soft);margin-bottom:18px}.next-lesson{border-radius:var(--radius-lg);padding:26px;color:var(--white);position:relative;overflow:hidden;background:linear-gradient(135deg,#1b2a52,#16213e 60%,#241c4e)}.next-lesson:after{content:"";position:absolute;right:-40px;top:-40px;width:170px;height:170px;border-radius:50%;background:radial-gradient(circle,rgba(240,169,60,.35),transparent 70%)}.next-lesson .tag{position:relative;z-index:1;display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.03em;background:hsla(40,53%,97%,.14);padding:5px 11px;border-radius:20px;margin-bottom:14px}.next-lesson h3{position:relative;z-index:1;font-size:23px;color:var(--white);margin-bottom:6px}.next-lesson .meta{position:relative;z-index:1;font-size:13.5px;color:hsla(40,53%,97%,.72);margin-bottom:20px}.next-lesson .meta b{color:var(--white)}.zoom-btn{position:relative;z-index:1;display:inline-flex;align-items:center;gap:9px;background:var(--gold);color:var(--ink);border:none;padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700}.zoom-btn:hover{background:#f5b95a}.zoom-btn .dot{width:8px;height:8px;border-radius:50%;background:#2ecc71;box-shadow:0 0 0 3px rgba(46,204,113,.25)}.subjects{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.subj-card{border-radius:var(--radius-md);padding:18px;border:1px solid var(--line);position:relative}.subj-card .sname{font-weight:700;font-size:14.5px;margin-bottom:3px}.subj-card .steacher{font-size:12px;color:var(--ink-soft);margin-bottom:14px}.bar-track{height:7px;border-radius:4px;background:var(--paper-dim);overflow:hidden;margin-bottom:8px}.bar-fill{height:100%;border-radius:4px}.subj-card .pct{font-size:12px;font-weight:700;color:var(--ink-soft)}.subj-card.it{border-top:3px solid var(--teal)}.subj-card.it .bar-fill{background:var(--teal)}.subj-card.math{border-top:3px solid var(--gold-deep)}.subj-card.math .bar-fill{background:var(--gold-deep)}.subj-card.mental{border-top:3px solid var(--violet)}.subj-card.mental .bar-fill{background:var(--violet)}.subj-card.eng{border-top:3px solid var(--coral)}.subj-card.eng .bar-fill{background:var(--coral)}.badges{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:14px;gap:14px}.badge{flex-direction:column;text-align:center;gap:8px;padding:14px 8px;border-radius:var(--radius-md);border:1px solid var(--line)}.badge,.badge .ic{display:flex;align-items:center}.badge .ic{width:46px;height:46px;border-radius:50%;justify-content:center;font-size:20px}.badge.unlocked .ic{background:linear-gradient(135deg,var(--gold),var(--coral));color:var(--white)}.badge.locked{opacity:.42}.badge.locked .ic{background:var(--paper-dim);color:var(--ink-soft)}.badge .bname{font-size:11.5px;font-weight:700;line-height:1.25}.week-row{display:flex;gap:6px;margin-bottom:14px}.week-day{flex:1 1;text-align:center;padding:9px 2px;border-radius:9px;font-size:12px;font-weight:700;color:var(--ink-soft);background:var(--paper-dim)}.week-day.on{background:var(--ink);color:var(--white)}.sched-item{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}.sched-item:last-child{border-bottom:none}.sched-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}.sched-item .stime{font-size:12.5px;font-weight:700;color:var(--ink-soft);width:48px;flex-shrink:0}.sched-item .sname2{font-size:13.5px;font-weight:600}.students-table{width:100%;border-collapse:collapse}.students-table th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);padding:0 12px 12px;font-weight:700;border-bottom:1.5px solid var(--line)}.students-table td{padding:14px 12px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}.students-table tr:last-child td{border-bottom:none}.stu-name{gap:10px}.mini-avatar,.stu-name{display:flex;align-items:center;font-weight:700}.mini-avatar{width:30px;height:30px;border-radius:50%;background:var(--paper-dim);justify-content:center;font-size:12px;color:var(--ink-soft);flex-shrink:0}.subj-pill{display:inline-block;font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:20px}.subj-pill.it{background:rgba(35,140,125,.12);color:var(--teal)}.subj-pill.math{background:rgba(201,127,27,.12);color:var(--gold-deep)}.subj-pill.mental{background:rgba(108,99,201,.12);color:var(--violet)}.subj-pill.eng{background:rgba(255,111,89,.12);color:var(--coral)}.award-btn{border:1.5px solid var(--line);background:var(--white);padding:8px 13px;border-radius:9px;font-size:12.5px;font-weight:700;color:var(--ink);white-space:nowrap}.award-btn:hover{border-color:var(--gold-deep);color:var(--gold-deep);background:rgba(240,169,60,.08)}.icon-btn,.icon-danger-btn{border:1.5px solid var(--line);background:var(--white);width:30px;height:30px;border-radius:8px;font-size:13px;line-height:1;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}.icon-btn:hover{border-color:var(--teal);color:var(--teal);background:rgba(58,155,150,.08)}.icon-danger-btn:hover{border-color:var(--coral);color:var(--coral);background:rgba(255,111,89,.08)}.hw-item{display:flex;align-items:flex-start;gap:13px;padding:14px 4px;border-bottom:1px solid var(--line)}.hw-item:last-child{border-bottom:none}.hw-check{width:26px;height:26px;border-radius:8px;border:1.5px solid var(--line);background:var(--white);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px;margin-top:2px}.hw-check.done{background:var(--teal);border-color:var(--teal);color:var(--white)}.hw-body{flex:1 1;min-width:0}.hw-title{font-weight:700;font-size:14px}.hw-title.done{text-decoration:line-through;color:var(--ink-soft)}.hw-desc{font-size:12.5px;margin-top:3px}.hw-desc,.hw-meta{color:var(--ink-soft)}.hw-meta{font-size:11.5px;margin-top:6px;display:flex;gap:8px;flex-wrap:wrap}.hw-due{font-weight:700}.hw-due.overdue{color:var(--coral)}.hw-progress-mini{font-size:11.5px;font-weight:700;color:var(--ink-soft);flex-shrink:0}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:34px 20px;gap:6px}.empty-icon{font-size:34px;margin-bottom:4px}.empty-title{font-weight:700;font-size:14.5px}.empty-sub{font-size:12.5px;color:var(--ink-soft);max-width:280px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeInUp .28s ease both}.attach-chip{display:inline-flex;align-items:center;gap:6px;border:1.5px dashed var(--line);border-radius:9px;padding:7px 12px;font-size:12px;font-weight:700;color:var(--ink-soft);cursor:pointer;background:var(--white)}.attach-chip:hover{border-color:var(--teal);color:var(--teal)}.attach-chip.filled{border-style:solid;border-color:var(--teal);color:var(--teal);background:rgba(58,155,150,.08)}.select-checkbox{width:17px;height:17px;accent-color:var(--ink);cursor:pointer}.bulk-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--paper-dim);border-radius:11px;padding:10px 14px;margin-bottom:14px;font-size:13px;font-weight:700}.bulk-bar .actions{display:flex;gap:8px}.sched-item{flex-wrap:wrap}.sched-item .sname2{flex:1 1;min-width:120px}.teach-sched{display:flex;flex-direction:column;gap:10px}.teach-lesson{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:var(--radius-md);border:1px solid var(--line)}.teach-lesson .tl-left{display:flex;align-items:center;gap:13px}.teach-lesson .tl-time{font-family:Fraunces,serif;font-size:17px;font-weight:600;width:56px}.teach-lesson .tl-info b{font-size:14px;display:block}.teach-lesson .tl-info span{font-size:12px;color:var(--ink-soft)}.start-btn{background:var(--ink);color:var(--white);border:none;padding:9px 16px;border-radius:9px;font-size:12.5px;font-weight:700;display:flex;align-items:center;gap:7px}.start-btn:hover{background:#232f52}.overlay{position:fixed;inset:0;background:rgba(22,33,62,.5);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}.overlay.show{display:flex}.modal{background:var(--white);border-radius:20px;padding:28px;width:100%;max-width:420px}.modal h3{font-size:19px;margin-bottom:18px}.modal .field{margin-bottom:16px}.badge-pick{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.modal-actions{display:flex;gap:10px}.btn-secondary{background:var(--paper-dim)}.btn-primary,.btn-secondary{flex:1 1;border:none;padding:12px;border-radius:10px;font-weight:700;font-size:13.5px}.btn-primary,.toast{background:var(--ink);color:var(--white)}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);padding:13px 22px;border-radius:12px;font-size:13.5px;font-weight:600;opacity:0;pointer-events:none;transition:all .25s ease;z-index:60;display:flex;align-items:center;gap:9px}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}@media (max-width:900px){.login-card{grid-template-columns:1fr}.login-visual{display:none}.app.show{grid-template-columns:1fr}.sidebar{position:relative;height:auto;flex-direction:row;align-items:center;padding:14px 16px;gap:14px}.sidebar .logo{margin-bottom:0}.nav-group,.nav-label,.sidebar-foot{display:none}.main{padding:22px 18px 50px}.badges,.bento,.stat-strip,.subjects{grid-template-columns:1fr 1fr}}