@font-face{font-family:Manrope;src:url('assets/fonts/manrope.ttf') format('truetype');font-weight:200 800;font-style:normal;font-display:swap}
:root{--bg:#f7f9fc;--paper:#fff;--ink:#18243e;--muted:#63708a;--blue:#2d50d7;--blue-hover:#2342b7;--blue-soft:#eaf0ff;--navy:#172c63;--border:#e0e6ef;--warm:#f4f0e6;--success:#247052;--danger:#ae3648;--purple:var(--blue);--purple2:var(--blue-hover);--lav:var(--blue-soft);--pink:var(--blue);--mint:#e7f3ec;--ease:cubic-bezier(.16,1,.3,1)}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.65 Manrope,'Segoe UI','Malgun Gothic',sans-serif;-webkit-font-smoothing:antialiased;caret-color:var(--blue)}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit}button,a,input,textarea,select{touch-action:manipulation}button{transition:background .18s,color .18s,border-color .18s,box-shadow .18s}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #5576ed;outline-offset:4px}a{color:var(--blue);text-underline-offset:4px}button svg{pointer-events:none}h1,h2,h3,p{overflow-wrap:break-word}h1,h2,h3{line-height:1.3;letter-spacing:-.025em}h1{font-size:32px;font-weight:800}h2{font-size:21px;font-weight:800}h3{font-size:17px;font-weight:800}p{max-width:70ch}::selection{background:#cdd9ff;color:var(--navy)}[hidden],.hidden{display:none!important}.ui-icon{width:21px;height:21px;display:inline-block;vertical-align:middle;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.skip-link{position:fixed;left:16px;top:-80px;z-index:200;padding:12px 20px;background:var(--paper);border:2px solid var(--blue);border-radius:8px}.skip-link:focus{top:12px}
.layout{display:flex;min-height:100vh}.sidebar{width:224px;flex-shrink:0;background:#fff;border-right:1px solid var(--border);padding:32px 18px 20px;display:flex;flex-direction:column;position:sticky;top:0;height:100dvh}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;margin:0 8px 44px}.brand-mark{width:39px;height:43px;border-radius:12px;background:var(--blue);display:grid;place-items:center}.brand-mark svg{width:29px;height:29px;fill:none;stroke:white;stroke-width:3.3;stroke-linecap:round}.brand strong{display:block;font-size:23px;letter-spacing:-1px;line-height:1.2;font-weight:800}.brand strong span{font-weight:500;color:var(--blue)}.brand small{display:block;color:var(--muted);font-size:12px;margin-top:5px;letter-spacing:0}.sidebar-label{font-size:12px;color:var(--muted);font-weight:600;padding:0 13px;margin-bottom:13px}.sidebar nav{display:grid;gap:5px}.sidebar nav button{width:100%;background:transparent;border:0;border-radius:9px;padding:12px 13px;display:flex;align-items:center;gap:11px;text-align:left;color:#5c6880;font-weight:600;font-size:13px;white-space:nowrap}.sidebar nav button:hover{background:#f3f5fa;color:var(--blue)}.sidebar nav button.active{background:var(--blue-soft);color:var(--blue);font-weight:800}.nav-ai{margin-left:auto;font-size:12px;border:1px solid #cdd7ee;border-radius:4px;padding:0 4px}.side-promo{margin-top:auto;padding:42px 12px 28px;position:relative}.side-promo>span[lang]{font-size:24px;display:block;letter-spacing:-1px;color:var(--blue);font-weight:700;margin-bottom:12px}.side-promo strong{font-size:12px}.side-promo p{font-size:12px;line-height:1.9;color:var(--muted);margin:7px 0 16px}.promo-line{width:30px;height:2px;background:var(--blue);display:block}.side-lower{display:flex;align-items:center;gap:7px;padding:16px 10px 0;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}.status-dot{width:6px;height:6px;flex:none;border-radius:50%;background:#9aa6bc}.status-dot.live{background:#398465}.main-shell{min-width:0;flex:1}.topbar{height:75px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--border);gap:16px}.breadcrumb{display:flex;gap:14px;align-items:center;font-size:12px;min-width:0}.header-brand{color:var(--muted)}.crumb-divider{color:#a9b3c6}.breadcrumb strong{font-weight:600}.header-right{display:flex;gap:12px;align-items:center}.role-chip{font-size:12px;color:var(--muted);white-space:nowrap}.iconbtn{height:35px;width:35px;border:1px solid var(--border);background:#fff;border-radius:50%;display:inline-grid;place-items:center;flex:none}.iconbtn:hover{color:var(--blue);background:var(--blue-soft)}.iconbtn .ui-icon{width:17px;height:17px}.account-avatar{background:var(--blue-soft);border-color:transparent;color:var(--blue)}.main-shell>main{max-width:1440px;margin:auto;padding:35px 40px 52px;min-height:calc(100dvh - 135px)}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);padding:20px 40px;color:var(--muted);font-size:12px}footer span:first-child{font-weight:800;color:#405275}.mobile-nav{display:none}
.page-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:27px}.page-heading h1{margin:0 0 7px;font-size:28px}.page-heading p{margin:0;color:var(--muted);font-size:13px}.date-label{font-size:12px;color:var(--muted);white-space:nowrap;display:flex;align-items:center;gap:8px}.date-label .ui-icon{width:16px;height:16px}.hero{padding:0 0 24px;border-bottom:1px solid var(--border);margin-bottom:24px}.hero h1{margin:0 0 12px;font-size:30px}.hero p{margin:0;color:var(--muted)}.hero .big-bunny,.eyebrow{display:none}.home-feature{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr);gap:20px}.learning-banner{background:var(--blue);border-radius:16px;position:relative;color:#fff;padding:32px;min-height:252px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;overflow:hidden}.learning-banner h2{font-size:32px;line-height:1.3;font-weight:700;margin:0 0 14px;letter-spacing:-.035em;position:relative;max-width:450px}.learning-banner p{color:#dbe4ff;font-size:12px;margin:0 0 23px;max-width:43ch;position:relative}.learning-banner .btn{position:relative}.banner-letter{font-family:'Malgun Gothic',sans-serif;position:absolute;right:-8px;bottom:-58px;color:#ffffff0d;font-size:220px;font-weight:700;line-height:1;pointer-events:none}.word-spotlight{border-radius:16px;background:var(--warm);padding:19px 23px;display:flex;flex-direction:column;min-width:0;position:relative}.spotlight-top{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px;color:#6b6557}.spotlight-top .ui-icon{width:18px;height:18px}.word-reveal{flex:1;border:0;background:transparent;text-align:center;padding:20px 0 12px;min-height:150px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:100%}.word-reveal strong{font-size:30px;line-height:1.45;font-weight:600;word-break:keep-all;overflow-wrap:anywhere}.word-reveal .word-answer{font-size:13px;color:#716b5e}.word-reveal.is-revealed strong{color:var(--blue)}.word-reveal.is-revealed .word-answer{animation:word-reveal .24s var(--ease)}.spotlight-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #dcd5c5;padding-top:12px;font-size:12px;color:#6b6557}.spotlight-bottom button{background:none;border:0;padding:3px;color:#5a5346;display:flex;align-items:center;gap:6px;font-size:12px}.spotlight-bottom .ui-icon{width:16px;height:16px}@keyframes word-reveal{from{filter:blur(3px);transform:translateY(4px)}to{filter:blur(0);transform:translateY(0)}}
.home-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding:22px 0;border-bottom:1px solid var(--border);margin-bottom:6px}.home-stat{display:flex;align-items:center;gap:12px;min-width:0}.home-stat>.ui-icon{color:#7485a8;width:20px;height:20px}.home-stat strong{font-size:21px;font-weight:800;line-height:1.3;display:block;font-variant-numeric:tabular-nums}.home-stat small{font-size:12px;color:var(--muted)}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr);gap:30px;align-items:start}.h-row{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.section-title{font-size:18px;margin:28px 0 16px}.section-title span{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:0;margin-left:8px}.text-link{display:inline-flex;align-items:center;gap:7px;background:none;border:0;color:var(--blue);font-size:12px;font-weight:700;padding:5px 0}.text-link .ui-icon{width:15px;height:15px}.lesson-list{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden}.lesson-row{padding:20px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--border)}.lesson-row:last-child{border:0}.lesson-index{flex:none;background:var(--blue-soft);color:var(--blue);width:48px;height:56px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-direction:column}.lesson-index small{font-size:12px;line-height:1.2}.lesson-index strong{font-size:23px;line-height:1.35}.lesson-row-content{min-width:0;flex:1}.lesson-row-content h3{font-size:14px;margin:0 0 7px}.lesson-row-content p{margin:0;font-size:12px;color:var(--muted);display:flex;align-items:center;gap:9px;flex-wrap:wrap}.status-label{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--success);white-space:nowrap}.status-label:before{content:'';width:5px;height:5px;border-radius:50%;background:currentColor}.status-label.draft{color:#94621e}.class-note{padding:21px 23px;background:#edf2fc;border-radius:12px;margin-top:28px}.class-note h2{font-size:16px;margin:0 0 7px;display:flex;gap:9px;align-items:center}.class-note p{font-size:12px;color:#566987;margin:0 0 16px}.join-code{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #d4dded;padding-top:16px;gap:12px}.join-code span{font-size:12px;color:#566987;display:block}.join-code strong{font-size:20px;letter-spacing:2px;color:var(--navy)}.review-note{padding:25px 0;border-bottom:1px solid var(--border)}.review-note h3{margin:0 0 9px;font-size:15px}.review-note p{font-size:12px;color:var(--muted);margin:0 0 12px}.mini-steps{padding:0;list-style:none;font-size:12px;color:var(--muted);display:grid;gap:10px}.mini-steps li{display:flex;align-items:center;gap:10px}.mini-steps .ui-icon{width:15px;height:15px;color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 17px;border:1px solid transparent;border-radius:8px;text-decoration:none;font-size:12px;font-weight:700;line-height:1.5}.btn .ui-icon{width:17px;height:17px}.btn.primary,.btn.pink{background:var(--blue);color:#fff}.btn.primary:hover,.btn.pink:hover{background:var(--blue-hover)}.btn.white{background:#fff;color:var(--blue);border-color:#fff}.btn.white:hover{background:#e8efff}.btn.outline{background:#fff;border-color:#d5deed;color:#43536f}.btn.outline:hover{border-color:#9daed0;background:#f9fbff}.btn.soft{background:var(--blue-soft);color:var(--blue)}.btn.soft:hover{background:#dce6ff}.btn.danger{background:#fff0f1;color:var(--danger)}.btn.danger:hover{background:#fbe0e3}.btn.ghost{background:none;color:var(--blue)}.btn.small{font-size:12px;padding:7px 12px;min-height:34px}.btn.wide{width:100%}.actions{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.pill{display:inline-flex;align-items:center;gap:5px;background:var(--blue-soft);color:#3d5f9f;border-radius:5px;padding:5px 9px;font-size:12px;font-weight:600}.pills{display:flex;gap:8px;flex-wrap:wrap}.muted{color:var(--muted)}.smalltxt{font-size:12px}.help{font-size:12px;color:var(--muted);line-height:1.8}.center{text-align:center}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}.divider{border:0;border-top:1px solid var(--border);margin:26px 0}.panel{padding:26px;background:#fff;border:1px solid var(--border);border-radius:12px}.panel h2:first-child{margin-top:0}.panel h3:first-child{margin-top:0}.pane-flex{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(260px,1fr);gap:24px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--border);padding:0 0 24px;margin:24px 0;gap:18px}.stat{padding:4px 14px;background:transparent;border-right:1px solid var(--border);min-width:0}.stat:last-child{border:0}.stat i{display:none}.stat strong{display:block;font-size:26px;line-height:1.4;font-weight:800;font-variant-numeric:tabular-nums}.stat small{color:var(--muted);font-size:12px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{padding:24px;background:#fff;border:1px solid var(--border);border-radius:12px;min-width:0;display:flex;flex-direction:column}.card h3{margin:18px 0 9px;font-size:19px}.card p{font-size:12px;color:var(--muted);margin:0 0 16px}.card .tag{font-size:12px;color:var(--muted)}.card .actions{margin-top:auto;padding-top:20px}.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px}.card-lesson{font-size:12px;color:var(--blue);font-weight:700}.lesson-banner{display:none}.empty{padding:36px 24px;text-align:center;border:1px dashed #cbd6e8;border-radius:12px;color:var(--muted);font-size:13px;background:#fff}.empty h3{color:var(--ink);font-size:18px}.empty p{margin:10px auto 20px}.empty .ui-icon{width:30px;height:30px;color:#8092b7}.notice{background:#fcf2de;color:#79551b;padding:13px 16px;border-radius:8px;font-size:12px}.notice.info{background:var(--blue-soft);color:#385c99}.notice.good{background:#e6f3eb;color:#216547}.notice.bad,.import-error{background:#fff0f0;color:#a53040}.import-error{margin-top:14px}.list-stack{display:grid;gap:12px}.assignment-line{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:12px}.assignment-line .left{display:flex;align-items:center;gap:15px;min-width:0}.assignment-line h3{font-size:15px;margin:0 0 6px}.assignment-line p{font-size:12px;color:var(--muted);margin:0}.block-emoji{width:44px;height:49px;display:grid;place-items:center;border-radius:7px;background:var(--blue-soft);color:var(--blue)}
.game-tiles{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.game-tile{padding:21px 17px;text-align:left;background:#fff;border:1px solid var(--border);border-radius:12px;display:flex;flex-direction:column;align-items:flex-start;min-width:0;position:relative}.game-tile:hover{border-color:#91a6e6;background:#f6f9ff}.game-tile .game-icon{color:var(--blue);margin-bottom:16px;display:block}.game-tile .game-icon .ui-icon{width:25px;height:25px}.game-tile b{font-size:14px;margin:0 0 7px}.game-tile small{font-size:12px;color:var(--muted);line-height:1.7}.game-tile .tile-arrow{position:absolute;top:19px;right:15px;color:#a2aec5;width:13px}.dashboard-grid .game-tiles{grid-template-columns:1fr}.dashboard-grid .game-tile{padding:14px 18px;display:grid;grid-template-columns:30px 1fr;gap:0 13px}.dashboard-grid .game-icon{grid-row:1/3;margin:4px 0}.dashboard-grid .game-tile b{margin:0 18px 3px 0}.dashboard-grid .game-tile .tile-arrow{top:26px}.dashboard-grid .game-tile small{padding-right:18px}.vocab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.vocab{padding:23px;text-align:center;background:#fff;border:1px solid var(--border);border-radius:12px}.vocab strong{font-size:22px}.vocab p{font-size:13px;color:var(--muted);margin:8px 0 16px}.word-img{height:112px;display:grid;place-items:center;font-size:50px;margin-bottom:16px;background:#f5f7fb;border-radius:8px;overflow:hidden}.word-img img{width:100%;height:112px;object-fit:contain}.study-frame,.quiz-box{max-width:800px;margin:25px auto}.flash{border:1px solid #d8e0ed;border-radius:16px;background:#fff;min-height:365px;padding:30px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer}.flash h2{font-size:38px;margin:18px 0;color:var(--navy)}.flash p{font-size:12px;color:var(--muted)}.flash-visual{min-height:125px;display:flex;align-items:center;justify-content:center;font-size:64px;max-width:100%}.flash-visual img{max-height:150px;max-width:240px;object-fit:contain;border-radius:9px}.question{font-size:27px;margin:22px 0;font-weight:800}.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.option{padding:20px;border:1px solid #d7dfec;background:#fff;text-align:left;border-radius:9px;font-weight:600;min-height:68px}.option:hover{border-color:var(--blue);background:#f4f7ff}.option.correct{background:#e5f3eb;border-color:#3b8967;color:#216547}.option.wrong{background:#fff0f1;border-color:#c95e6b;color:#993144}.match-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.match-tile{min-height:100px;background:#fff;border:1px solid #d7dfec;border-radius:10px;padding:14px;font-weight:700;overflow-wrap:anywhere}.match-tile:hover,.match-tile.chosen{border-color:var(--blue);background:var(--blue-soft)}.match-tile.done{opacity:.5;background:#e5f3eb;border-color:#8bbb9f}.match-tile.nope{border-color:#c95e6b}.result{max-width:650px;margin:30px auto;padding:42px;background:#fff;border:1px solid var(--border);border-radius:16px;text-align:center}.result .trophy{color:var(--blue)}.result .trophy .ui-icon{width:48px;height:48px}.result h2{font-size:26px}.result p{margin-left:auto;margin-right:auto}.result .score{font-size:48px;letter-spacing:-.03em;color:var(--blue);font-weight:800}.result .actions{justify-content:center}
.field{display:grid;gap:7px;margin-bottom:18px;min-width:0}.field label{font-size:12px;color:#40506b;font-weight:700}.field input,.field select,.field textarea,input.form-control,textarea.form-control{width:100%;min-width:0;min-height:45px;padding:11px 13px;color:var(--ink);background:#fff;border:1px solid #ccd6e6;border-radius:8px}.field textarea{min-height:90px}textarea{resize:vertical}input::placeholder,textarea::placeholder{color:#747e90;opacity:1}input[type=file]{font-size:12px;padding:9px!important;max-width:100%}input[type=file]::file-selector-button{background:var(--blue-soft);color:var(--blue);border:0;border-radius:4px;padding:5px 8px;margin-right:8px;cursor:pointer}textarea[aria-invalid=true]{border-color:#b23948}.word-editor{display:grid;grid-template-columns:1fr 1fr 1fr auto;align-items:start;gap:14px;padding:20px 0;border-top:1px solid var(--border)}.word-editor>.btn{margin-top:27px}.word-editor .field{margin-bottom:0}.teacher-draft{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:15px 0;border-bottom:1px solid var(--border)}.teacher-draft .icon-line{display:flex;align-items:center;gap:15px;min-width:0}.teacher-draft .icon-line>div{min-width:0;overflow-wrap:anywhere}.teacher-draft b{font-size:19px;font-weight:600}.teacher-draft .thumb{width:48px;height:48px;object-fit:contain;border-radius:8px;background:#f3f5f9;flex:none}.teacher-draft .actions{justify-content:flex-end;flex-shrink:0}.teacher-draft small{font-size:12px;color:#88621d}.teacher-draft .muted{font-size:12px}#paste-words{display:block;width:100%;min-height:145px;padding:15px;border:1px solid #ccd6e6;border-radius:8px;background:#fff;line-height:1.9}#save-assignment>.panel{border:0;border-radius:0;padding:24px 0;background:transparent!important;border-top:1px solid var(--border)}#save-assignment h2{font-size:19px}#save-assignment>.actions{border-top:1px solid var(--border);padding-top:22px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--border);font-size:12px;font-variant-numeric:tabular-nums}th{font-size:12px;color:var(--muted);font-weight:700;background:#f8faff}.scores{min-width:600px}.scores strong{color:var(--blue)}.student-table{min-width:340px}.loading{padding:100px 20px;text-align:center;color:var(--muted)}.loading:before{content:'';display:block;width:45px;height:4px;background:var(--blue);margin:0 auto 22px;border-radius:3px}.intro{max-width:760px}#toast-area{position:fixed;bottom:25px;right:25px;z-index:100;display:grid;gap:10px}.toast{background:var(--navy);color:#fff;max-width:min(390px,calc(100vw - 32px));padding:15px 19px;border-radius:10px;font-size:12px;box-shadow:0 8px 28px #172c6333}
.entrance{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.85fr);gap:56px;align-items:center;min-height:calc(100dvh - 220px);max-width:1050px;margin:0 auto}.entrance-story h1{font-size:43px;line-height:1.3;letter-spacing:-.035em;margin:0 0 20px}.entrance-story h1 span{color:var(--blue)}.entrance-story>p{font-size:14px;color:var(--muted);max-width:38ch;margin:0 0 26px}.entrance-korean{font-family:'Malgun Gothic',sans-serif;font-size:90px;font-weight:700;color:var(--blue);letter-spacing:-6px;line-height:1.15;margin-bottom:25px}.entrance-korean small{font-family:Manrope,sans-serif;font-weight:500;font-size:12px;letter-spacing:0;color:var(--muted);margin-left:15px}.entrance-features{display:grid;gap:13px;margin:25px 0 30px;padding:23px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.entrance-features span{display:flex;align-items:center;gap:12px;color:#53617b;font-size:12px}.entrance-features .ui-icon{color:var(--blue);width:18px;height:18px}.entrance-form{background:#fff;border:1px solid var(--border);border-radius:16px;padding:28px}.entrance-form h2{font-size:23px;margin:23px 0 8px}.entrance-form>form>p{font-size:12px;color:var(--muted);margin:0 0 25px}.entry-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:#f0f3f9;border-radius:9px}.entry-tabs button{border:0;background:transparent;color:var(--muted);padding:10px 8px;border-radius:6px;font-weight:700;font-size:12px}.entry-tabs button.selected{background:#fff;color:var(--blue);box-shadow:0 2px 5px #1c315410}.entry-footer{border-top:1px solid var(--border);padding-top:18px;text-align:center;color:var(--muted);font-size:12px;margin-top:23px}.entry-footer button{display:inline-flex;margin:8px 7px 0}.ai-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(240px,.8fr);gap:25px;align-items:start}.ai-guide{padding:15px 0}.ai-guide h2{font-size:18px}.ai-guide p,.ai-guide li{font-size:12px;color:var(--muted)}.ai-guide ol{padding-left:19px;display:grid;gap:15px}.ai-guide .notice{margin-top:25px}#ai-source{width:100%}.teacher-class-code{color:var(--blue);letter-spacing:2px;font-size:26px}.page-actions{margin:-3px 0 24px}.editor-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.tiny-img{max-width:70px;max-height:55px;display:block;margin:auto}.progress-track{height:5px;border-radius:4px;background:var(--blue-soft);margin:12px 0;overflow:hidden}.progress-fill{height:100%;background:var(--blue)}
@media(min-width:1600px){.main-shell>main{padding-top:42px}.home-feature{grid-template-columns:1.8fr 1fr}.learning-banner{min-height:285px}.learning-banner h2{font-size:36px}}
@media(max-width:1200px){.sidebar{width:204px;padding-left:12px;padding-right:12px}.brand{gap:8px}.brand strong{font-size:21px}.topbar{padding:0 28px}.main-shell>main{padding:28px}.home-feature,.dashboard-grid{grid-template-columns:minmax(0,1.5fr) minmax(250px,1fr)}.learning-banner{padding:27px}.learning-banner h2{font-size:28px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.game-tiles{grid-template-columns:repeat(3,minmax(0,1fr))}.word-editor{grid-template-columns:1fr 1fr}.word-editor>.btn{margin:27px 0 0}.entrance{gap:30px}.entrance-story h1{font-size:35px}.entrance-form{padding:23px}.date-label{display:none}.home-stat{gap:8px}.home-stat>.ui-icon{display:none}.lesson-row{padding:16px;gap:12px}.lesson-row .btn{font-size:12px;padding:7px 10px}}
@media(max-width:960px){.sidebar{width:190px}.sidebar nav button{font-size:12px;padding:12px 10px;gap:8px}.home-feature{grid-template-columns:minmax(0,1.4fr) minmax(220px,1fr);gap:15px}.dashboard-grid{grid-template-columns:1fr}.dashboard-aside{display:grid;grid-template-columns:1fr 1fr;gap:24px}.class-note{margin-top:24px}.review-note{padding:26px 0}.pane-flex,.ai-layout{grid-template-columns:1fr}.entrance{grid-template-columns:1fr;max-width:580px;gap:28px}.entrance-story{padding-top:12px}.entrance-story h1{font-size:34px}.entrance-korean{display:none}.entrance-features{display:none}.entrance-form{max-width:100%}.stats{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:20px}.stat:nth-child(2){border:0}.teacher-draft{flex-wrap:wrap}.teacher-draft .actions{width:100%;justify-content:flex-start}.dashboard-grid .game-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.sidebar{display:none}.topbar{height:65px;padding:0 20px}.main-shell>main{padding:25px 20px 100px}.header-right{gap:10px}.header-brand{display:none}.crumb-divider{display:none}.breadcrumb{font-size:12px}.role-chip{font-size:12px}.iconbtn{width:32px;height:32px}.mobile-nav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:flex;background:#fff;border-top:1px solid var(--border);padding:9px 5px max(9px,env(safe-area-inset-bottom));gap:0;justify-content:space-around}.mobile-nav button{flex:1;min-width:0;padding:4px 2px;border:0;background:transparent;color:#5c6c86;display:flex;flex-direction:column;align-items:center;gap:4px}.mobile-nav button .ui-icon{width:20px;height:20px}.mobile-nav small{font-size:12px;font-weight:600;white-space:nowrap}.mobile-nav button.active{color:var(--blue)}.page-heading{margin-bottom:23px}.page-heading h1{font-size:25px}.page-heading p{font-size:12px}.page-heading>.btn{display:none}.home-feature{grid-template-columns:minmax(0,1.35fr) minmax(190px,1fr);gap:14px}.learning-banner{padding:25px;min-height:245px}.learning-banner h2{font-size:25px}.word-spotlight{padding:17px}.word-reveal strong{font-size:26px}.spotlight-bottom{font-size:12px}.home-stats{gap:12px;padding:20px 0}.home-stat strong{font-size:22px}.home-stat small{font-size:12px}.section-title{font-size:17px}.dashboard-grid{gap:0}.dashboard-aside{grid-template-columns:1fr 1fr;gap:20px}.class-note{padding:20px}.game-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.cards{grid-template-columns:1fr 1fr;gap:14px}.card{padding:19px}.card h3{font-size:17px}.card-meta{align-items:flex-start;flex-direction:column;gap:8px}.panel{padding:22px}.assignment-line{flex-wrap:wrap}.assignment-line>.actions{margin-left:59px}.vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.vocab{padding:17px}.hero h1{font-size:26px}.hero p{font-size:12px}.word-editor{padding:20px 0;gap:12px}.field{margin-bottom:16px}.field input,.field textarea,.field select{font-size:16px}.word-editor .field input[type=file]{font-size:12px}.match-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.result{padding:30px 22px}.flash h2{font-size:32px}.question{font-size:23px}.study-frame,.quiz-box{margin-top:20px}.option-grid{gap:10px}.option{font-size:12px;padding:16px}.entrance{min-height:0}.entrance-story h1{font-size:33px}.entrance-story>p{font-size:13px}.entrance-form{padding:23px}.ai-guide{padding:0}.toast{font-size:12px}#toast-area{right:16px;bottom:88px}footer{display:none}}
@media(max-width:540px){.home-feature{grid-template-columns:1fr}.learning-banner{min-height:230px;padding:28px}.learning-banner h2{font-size:29px}.learning-banner p{font-size:12px;max-width:32ch}.word-spotlight{min-height:195px;padding:17px 23px}.word-reveal{min-height:110px;padding:12px 0}.word-reveal strong{font-size:28px}.spotlight-bottom{font-size:12px}.home-stats{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:17px}.home-stat{gap:12px}.home-stat>.ui-icon{display:block}.cards{grid-template-columns:1fr}.dashboard-aside{display:block}.class-note{margin-top:25px}.dashboard-grid .game-tiles{grid-template-columns:1fr}.page-heading h1{font-size:25px}.page-heading p{font-size:12px}.lesson-row{padding:16px 14px;gap:12px;flex-wrap:wrap}.lesson-row-content h3{font-size:13px}.lesson-row>.btn{margin-left:60px}.lesson-row-content{flex-basis:calc(100% - 62px)}.card-meta{flex-direction:row;align-items:center}.vocab strong{font-size:20px}.vocab p{font-size:12px}.word-editor{grid-template-columns:1fr}.word-editor>.btn{margin-top:0;justify-self:start}.teacher-draft .actions{gap:6px}.teacher-draft .actions .btn{font-size:12px;padding:7px 9px}.teacher-draft b{font-size:19px}.teacher-draft .thumb{width:40px;height:40px}.option-grid{grid-template-columns:1fr}.flash{padding:22px;min-height:340px}.flash h2{font-size:29px}.game-tiles .game-tile{padding:19px 15px}.entrance-story h1{font-size:32px}.entrance-form{padding:22px}.stats{padding-bottom:18px}.stat{padding-left:5px}.stat strong{font-size:24px}.assignment-line>.actions{margin-left:0}.assignment-line{padding:18px}.btn{padding:10px 14px}.hero h1{font-size:25px}.mobile-nav small{font-size:12px}}
.option:disabled{opacity:1}
.panel>p,.hero>p,.learning-banner p,.entrance-story>p,.ai-guide p,.ai-guide li{font-size:14px}
.game-tile small,.card p,.review-note p,.class-note p,.lesson-row-content p{font-size:13px}
.sidebar nav button,.btn,.field label{font-size:13px}
.help,.smalltxt{font-size:12px}
.home-stat small{font-size:12px}
.mobile-nav small{font-size:11px}
@media(max-width:760px){.panel>p,.hero>p{font-size:13px}.mobile-nav button{min-height:49px}.field input,.field textarea,.field select{font-size:16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* studywithchom — photography and updated wordmark */
.brand{gap:9px;margin-left:3px;margin-right:0}.brand strong{font-size:18px;letter-spacing:-.65px}.brand small{font-size:11px}.brand-mark{width:34px;height:38px;flex:none}.brand-mark svg{width:27px;height:27px}.header-brand{font-weight:600;color:var(--blue)}
.learning-banner{min-height:310px;padding:30px;isolation:isolate}.banner-photo{position:absolute;right:0;top:0;width:41%;height:100%;object-fit:cover;object-position:48% center;z-index:-1}.learning-banner h2{max-width:57%;font-size:29px}.learning-banner p{max-width:54%;font-size:13px}.learning-banner .btn{max-width:57%}.entrance{gap:42px}.entrance-story h1{font-size:37px;margin-bottom:15px}.entrance-story>p{margin-bottom:22px;max-width:45ch}.entrance-photo{margin:0 0 23px}.entrance-photo img{display:block;width:100%;height:220px;object-fit:cover;object-position:center 57%;border-radius:12px}.entrance-photo figcaption{font-size:12px;color:var(--muted);margin-top:9px}.entrance-features{display:none}.photo-note{margin-top:24px;background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden}.photo-note img{width:100%;height:160px;object-fit:cover;object-position:center 65%;display:block}.photo-note>div{padding:16px 20px;display:flex;gap:12px;align-items:center}.photo-note strong{font-size:24px}.photo-note span{font-size:12px;color:var(--muted)}.word-img:has(img){background:#f4f0e6}.word-img img{object-fit:cover}.flash-visual:has(img){width:100%;height:200px}.flash-visual img{width:100%;max-width:330px;max-height:200px;object-fit:cover}.credits-page{max-width:780px;padding:50px 24px;margin:auto}.credits-page h1{font-size:30px}.credits-page li{margin:20px 0}.credits-page p{color:var(--muted)}
@media(max-width:1200px){.brand strong{font-size:16px}.brand small{font-size:11px}.learning-banner{padding:25px;min-height:330px}.learning-banner h2{font-size:27px}.learning-banner p{font-size:13px}.entrance-story h1{font-size:34px}}
@media(max-width:960px){.home-feature{grid-template-columns:1fr}.learning-banner{min-height:290px}.word-spotlight{min-height:220px}.word-reveal{min-height:125px}.dashboard-aside .photo-note{align-self:start}.entrance-photo img{height:210px}.entrance-story{padding-top:0}}
@media(max-width:540px){.learning-banner{padding:27px;min-height:0}.learning-banner h2,.learning-banner p,.learning-banner .btn{max-width:100%}.learning-banner h2{font-size:28px}.learning-banner .banner-photo{position:static;order:2;height:190px;width:calc(100% + 54px);max-width:none;margin:25px -27px -27px;z-index:0;object-position:center 55%}.entrance-story h1{font-size:30px}.entrance-photo img{height:185px}.entrance-photo figcaption{font-size:12px}.photo-note img{height:180px}.flash-visual:has(img){height:170px}.flash-visual img{max-height:170px}}