:root{--navy:#10243e;--deep:#0b192c;--blue:#263f62;--ink:#15273e;--muted:#758096;--paper:#f3f4f6;--line:#dfe4eb;--mint:#a5d8d3;--gold:#c1aa83;--serif:Georgia,'Times New Roman',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.5 var(--sans)}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #4c9faa;outline-offset:3px}svg{vertical-align:middle;flex:none}.app-shell{display:flex;min-height:100dvh}.sidebar{width:238px;background:radial-gradient(ellipse at -70% 45%,#314a69 0%,transparent 70%),linear-gradient(155deg,#142b48,#0b192c);color:#d5dfec;padding:35px 23px 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@media(max-width:650px){.sidebar{transform:translateX(-100%);transition:transform .2s;width:238px;padding:30px 23px;box-shadow:15px 0 45px #10243e30}.sidebar.open{transform:translateX(0)}.main-shell{margin-left:0;width:100%}.mobile-menu{display:inline-flex}.brand{font-size:22px}.brand small{font-size:8px}.topbar{padding:0 17px;height:65px;gap:8px}.breadcrumb{font-size:9px;letter-spacing:1px;flex:1}.breadcrumb span{margin:0 7px}.top-actions{gap:4px}.account-btn{padding:0;font-size:10px}#account-label{max-width:95px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.avatar{width:27px;height:27px}.top-actions #notifications{display:none}main{padding:25px 18px 30px}.page-heading{align-items:start;flex-direction:column;gap:15px;margin-bottom:22px}h1{font-size:34px;letter-spacing:-.6px}.date-label{text-align:left}.hero{padding:25px 23px;min-height:280px;border-radius:9px}.hero h2{font-size:31px}.hero p{font-size:12px}.grid,.grid.two{grid-template-columns:1fr}.grid.four{grid-template-columns:1fr 1fr}.card{padding:21px}.module-cover{height:89px}.section-title{gap:12px}.section-title h2{font-size:20px}.section-title .btn{font-size:9px;padding:6px 9px}.search{min-width:0;width:100%}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.lesson-paper{padding:23px}.lesson-paper h2{font-size:27px}.footer{padding:20px 18px;font-size:8px;flex-direction:column;gap:5px}.chat-message.user{margin-left:6%}.chat-message.assistant{margin-right:3%}.document-paper{padding:20px}.grid.four .card{padding:15px}.grid.four h2{font-size:20px}.teacher-art-line{font-size:14px}.student-shell{margin:20px 0}.btn{min-height:42px}.nav-btn{font-size:12px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{@page{size:A4;margin:17mm}body{background:#fff;color:#000}.app-shell,dialog,#toast{display:none!important}#print-area{display:block!important;font:12pt/1.5 Georgia,serif}#print-area h1{font-size:21pt;text-align:center}#print-area h2{font-size:16pt;break-after:avoid}#print-area table{border-collapse:collapse;width:100%}#print-area td,#print-area th{border:1px solid #888;padding:7px}#print-area p,#print-area tr{break-inside:avoid}.no-print{display:none!important}.document-paper{border:0;padding:0;max-width:none}.exercise{break-inside:avoid}.student-shell{margin:0}}
.schedule-week{grid-template-columns:repeat(7,minmax(120px,1fr))}.tdoc-header{text-align:center;margin-bottom:22px}.tdoc-meta{font-size:11px;text-align:center;color:#536276}.tdoc-status{padding:10px 13px;border:1px solid #dacdab;background:#f8f4ea;font:11px/1.6 var(--sans);margin:18px 0}.tdoc-signature{margin-top:35px}.teacher-document section{margin:20px 0}.teacher-document p{color:#24344a;font:13px/1.7 Georgia,serif}.teacher-document h1{font-size:24px}.teacher-document h2{margin-top:22px}.teacher-document th{background:#eff2f6;text-align:left}.teacher-document td,.teacher-document th{overflow-wrap:anywhere}@media(max-width:850px){.schedule-week{grid-template-columns:repeat(7,145px)}}
@media print{#student-main{display:none!important}.tdoc-status{background:#fff;border-color:#888}.teacher-document p{font:11pt/1.5 Georgia,serif;color:#000}}
.module-card{padding:0!important}
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#d5dfe9;border-radius:22px;background:linear-gradient(145deg,#17314f,#0e223c);box-shadow:0 13px 29px #152a4210;position:relative;margin-bottom:25px}.studio-emblem:before{content:'';position:absolute;inset:-7px;border:1px solid #dbe3eb;border-radius:27px}.studio-welcome h2{font:31px/1.2 var(--serif);letter-spacing:-.6px;margin-bottom:13px}.studio-welcome>p{font-size:12px;color:#8090a6;line-height:1.8}.studio-tool-grid{width:100%;max-width:840px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;margin:20px 0 18px}.studio-tool-card{border:1px solid #dce4ec;border-radius:11px;background:#fcfdfe;text-align:left;padding:14px 16px 18px;color:var(--ink);transition:transform .22s,border-color .22s,box-shadow .22s;position:relative;overflow:hidden;min-width:0}.studio-tool-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px #162e4910;border-color:#a5c3c9}.studio-tool-card strong{font-size:11px;font-weight:550;display:block;position:relative;z-index:1}.studio-tool-card 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var(--navy);color:#d4eae5;background:var(--navy);display:grid;place-items:center}.studio-send:hover{background:#294663}.studio-send:disabled{opacity:.4}.studio-plus-wrap{position:relative}.studio-plus-menu{position:absolute;bottom:48px;left:-5px;width:300px;max-width:calc(100vw - 65px);padding:12px;border:1px solid #d4dfe9;border-radius:12px;background:#fff;box-shadow:0 18px 55px #0d203430;z-index:40;text-align:left}.studio-plus-menu>span{font-size:8px;letter-spacing:1.1px;color:#9aa9b9;display:block;padding:5px 9px 9px}.studio-plus-menu button{display:flex;gap:10px;align-items:center;width:100%;background:none;border:0;padding:11px 9px;border-radius:6px;color:#526a84;font-size:11px;text-align:left}.studio-plus-menu button:hover{background:#edf3f7;color:var(--ink)}.studio-menu-divider{height:1px;background:#edf1f5;margin:7px}.studio-bottom-note{display:flex;justify-content:space-between;gap:10px;font-size:8px;color:#a0aebb;margin:11px 4px 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@media(prefers-reduced-motion:reduce){.studio-thinking i{animation:none}.studio-message{animation:none}}
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.brand{align-items:stretch;gap:14px;min-height:42px}.brand-logo{width:49px;height:39px;align-self:stretch;margin-top:1px}.brand>span{display:flex;flex-direction:column;justify-content:space-between;font:25px/.93 var(--serif);letter-spacing:2.2px;padding:0}.brand .brand-subtitle{display:block;margin:0;padding:0;font:8px/1 var(--sans);letter-spacing:3.3px;color:#a6bacb}.studio-message-body{font-size:14px}.studio-table table{font-size:12px}@media(max-width:1150px){.brand{gap:10px;min-height:38px}.brand-logo{width:42px;height:34px}.brand>span{font-size:22px}.brand .brand-subtitle{font-size:7px;letter-spacing:2.8px}}@media(max-width:650px){.brand{min-height:42px;gap:14px}.brand-logo{width:49px;height:39px}.brand>span{font-size:25px}.brand .brand-subtitle{font-size:8px;letter-spacing:3.3px}.studio-message-body{font-size:14px}}
.voice-dialog{max-width:480px;text-align:center;padding:25px}.voice-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.voice-header button{border:0;background:none;font-size:25px;color:#8d9fb2}.voice-dialog>p{font-size:11px;color:#8395a9;line-height:1.7}.voice-dialog .button-row{justify-content:center}.voice-ring{width:154px;height:154px;margin:25px auto;border:1px solid #cedce8;border-radius:50%;background:radial-gradient(circle,#e3efef,#f5f8fb);display:flex;flex-direction:column;justify-content:center;gap:13px}.voice-ring>span{font:30px var(--serif);color:#3d5b76}.voice-wave{height:24px;display:flex;gap:4px;align-items:center;justify-content:center}.voice-wave i{width:3px;height:7px;border-radius:3px;background:#92bdb8}.voice-ring.recording .voice-wave i{animation:voice-wave 1s ease-in-out infinite}.voice-wave i:nth-child(2n){animation-delay:.2s;height:12px}.voice-wave i:nth-child(3n){animation-delay:.4s;height:18px}.voice-status{margin:20px 0 0;color:#8a9baf;font-size:10px}@keyframes voice-wave{50%{transform:scaleY(1.6);opacity:.5}}@media(prefers-reduced-motion:reduce){.voice-ring.recording .voice-wave i{animation:none}}