@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800&family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap";
:root{--ink:#232e28;--muted:#7c837e;--lime:#c3ee90;--accent:#6b9450;--line:#e5e9e3;--paper:#fff;--back:#f7f8f5;--soft:#eef2e9;--error:#b24b46}*{box-sizing:border-box}body{background:var(--back);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Noto Sans JP,Noto Sans KR,sans-serif}html[lang=ko] body{font-family:Noto Sans KR,Noto Sans JP,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{outline-offset:5px}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.45}button{background:0 0;border:0}p,h1,h2,h3{margin:0}svg{flex-shrink:0}button:focus-visible,a:focus-visible{outline:2px solid var(--accent)}.application{isolation:isolate;min-height:100dvh;position:relative}.network{z-index:-1;pointer-events:none;width:100%;height:min(940px,100%);position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#000 50%,#0000);mask-image:linear-gradient(#000,#000 50%,#0000)}.topbar{z-index:2;border-bottom:1px solid #e5e9e380;justify-content:space-between;align-items:center;gap:20px;height:94px;padding:0 5%;display:flex;position:relative}.brand{letter-spacing:-1.4px;align-items:center;gap:12px;font-size:25px;font-weight:700;display:flex}.brand-symbol{background:var(--lime);border-radius:12px;justify-content:center;align-items:center;width:39px;height:39px;font-family:Georgia,serif;font-size:35px;font-style:italic;line-height:1;display:flex;position:relative}.brand-symbol span{font-family:inherit;font-size:18px;font-style:normal;position:absolute;top:0;right:2px}.brand-chat{letter-spacing:1.5px;color:var(--muted);margin-left:9px;font-size:12px;font-weight:500}.topbar nav{align-items:center;gap:23px;display:flex}.language{color:#59645d;align-items:center;gap:8px;font-size:13px;display:flex}.login-button{background:var(--ink);color:#fff;border-radius:30px;align-items:center;gap:20px;padding:13px 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.2s}.teacher-card:hover{border-color:#a7c38e;transform:translateY(-5px);box-shadow:0 14px 30px #384c2510}.card-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.card-index{color:#9aa096;font-family:monospace;font-size:11px}.teacher-tag{letter-spacing:.4px;color:#7e8975;background:#f2f5ed;border-radius:5px;padding:4px 7px;font-size:9px}.teacher-art{justify-content:center;align-items:center;height:142px;display:flex;position:relative}.avatar-ring{background:#eef3e5;border-radius:50%;justify-content:center;align-items:center;width:98px;height:98px;display:flex;position:relative}.avatar-ring:before{content:"";border:1px dashed #cdd8c1;border-radius:50%;position:absolute;inset:-7px;transform:rotate(-20deg)}.math-note{color:#8a9878;font-family:Georgia,serif;font-size:17px;font-style:italic;position:absolute;bottom:16px;right:-2px;transform:rotate(-8deg)}.teacher-easy .avatar-ring{background:#f5eee3}.teacher-figure .avatar-ring{background:#e8efef}.teacher-passage 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0;font-size:10px}.chat-main{flex-direction:column;min-width:0;min-height:0;display:flex}.teacher-heading{align-items:center;gap:15px;padding:17px 0 22px;display:flex}.chat-avatar{color:#333d33;justify-content:center;align-items:center;width:45px;height:45px;display:flex}.teacher-heading h1{letter-spacing:-.5px;font-size:21px;font-weight:600}.teacher-heading p{color:#a0a69f;margin-top:5px;font-size:12px}.chat-price{text-align:right;color:#798671;flex-direction:column;gap:6px;margin-left:auto;font-size:11px;display:flex}.chat-price small{font-size:10px}.chat-scroll{scroll-behavior:smooth;flex:1;padding:0 8px 16px 0;overflow:auto}.welcome{color:#97a28f;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:17px;height:100%;min-height:240px;display:flex}.welcome h2{color:#596652;font-size:22px;font-weight:500}.welcome p{color:#99a291;font-size:13px}.turn{padding-bottom:28px}.user-message{white-space:pre-wrap;background:#edf1e9;border-radius:20px 20px 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