@import url('/assets/fonts.css');
select{width:100%;border:1px solid #d9e2dd;border-radius:10px;padding:12px 14px;background:#fff;color:#182329;font:inherit;font-size:14px}
:root{--paper:#f7f8fa;--ink:#182329;--muted:#738087;--line:#e3e8eb;--green:#176c56;--mint:#e5f2ec;--white:#fff;--radius:22px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea{outline-offset:4px}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}.shell{max-width:1200px;margin:auto;padding:0 42px}.topbar{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:740;letter-spacing:-.5px}.brandmark{width:35px;height:35px;border-radius:11px;background:var(--green);display:grid;place-items:center;color:white;font-size:24px;font-weight:400}.brand small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1.4px;text-transform:uppercase;display:block;margin-top:3px}.top-actions{display:flex;align-items:center;gap:12px}.btn{border:1px solid var(--line);background:#fff;padding:11px 17px;border-radius:11px;font-weight:600;font-size:13px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn:hover{border-color:#a9bdb5;background:#f4f9f6}.btn.primary{color:white;background:var(--green);border-color:var(--green)}.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn.danger{color:#a63239}.hero{display:grid;grid-template-columns:1fr 285px;align-items:center;padding:63px 0 43px;gap:35px}.eyebrow{font-size:11px;font-weight:650;letter-spacing:1.8px;text-transform:uppercase;display:flex;align-items:center;gap:8px;color:var(--green)}.dot{width:6px;height:6px;border-radius:100%;background:#4c9977;display:inline-block}h1{font-size:clamp(34px,4.4vw,54px);font-weight:660;line-height:1.13;letter-spacing:-2.3px;margin:19px 0 18px}h1 em{font-family:Georgia,serif;font-weight:400;color:var(--green)}.subhead{font-size:15px;line-height:1.8;color:var(--muted);max-width:530px;margin:0}.hero-art{height:190px;position:relative;display:grid;place-items:center;isolation:isolate}.hero-art:before{content:'';position:absolute;width:176px;height:176px;border:1px solid #d9e6df;border-radius:100%;z-index:-1}.hero-art:after{content:'';position:absolute;width:234px;height:234px;border:1px dashed #e0e7e3;border-radius:100%;z-index:-2}.art-card{width:116px;height:144px;background:#fff;border:1px solid #dfebe3;border-radius:17px;box-shadow:0 10px 35px #153b2520;transform:rotate(-12deg);padding:25px 22px}.art-card:before{content:'✳';display:block;font-size:42px;color:#53876c}.art-card:after{content:'';display:block;width:68px;height:4px;background:#d8e5dc;border-radius:4px;margin-top:17px;box-shadow:0 10px 0 #e8eee9}.art-chip{position:absolute;background:#ebf2ce;border:4px solid var(--paper);width:59px;height:59px;display:grid;place-items:center;border-radius:20px;right:45px;bottom:24px;transform:rotate(12deg);font-size:28px;color:#577246}.section-top{display:flex;align-items:center;justify-content:space-between;margin:5px 0 22px;gap:15px}.section-top h2{font-size:17px;letter-spacing:-.4px;margin:0}.section-top p{font-size:12px;color:var(--muted);margin:7px 0 0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-4px);box-shadow:0 12px 34px #21392e0a}.card-link{display:flex;flex-direction:column;min-height:330px;padding:28px}.card-top{display:flex;justify-content:space-between;align-items:center}.app-icon{height:53px;width:53px;border-radius:16px;display:grid;place-items:center;background:#eaf2ed;color:#367d5f;font-size:27px}.card:nth-child(1) .app-icon{background:#fff4df;color:#b38822}.card:nth-child(2) .app-icon{background:#edf0fa;color:#696bc1}.pill{font-size:10px;font-weight:600;background:#f5f7f6;border:1px solid #e7ece8;color:#78867e;border-radius:6px;padding:5px 8px;letter-spacing:.3px}.card h3{font-size:23px;font-weight:660;letter-spacing:-.7px;margin:28px 0 12px}.card p{font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 24px}.card-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f0f2f3;padding-top:19px;margin-top:auto;color:var(--green);font-weight:650;font-size:12px}.arrow{font-size:19px}.card-edit{background:transparent;border:none;color:#8b969d;position:absolute;right:17px;bottom:13px;font-size:16px;display:none}.managing .card-edit{display:block}.managing .card-foot{padding-right:45px}.note{display:flex;align-items:center;gap:15px;background:#ecf1ed;border:1px solid #e0e8e0;border-radius:15px;padding:21px 25px;margin-top:28px;font-size:13px;color:#62746a;line-height:1.7}.note strong{color:#425d4e;font-weight:620}.note-icon{font-size:24px}.footer{display:flex;justify-content:space-between;gap:15px;color:#8a959b;font-size:11px;padding:34px 0;margin-top:25px;border-top:1px solid var(--line)}dialog{border:1px solid var(--line);border-radius:22px;padding:30px;max-width:520px;width:calc(100% - 30px);box-shadow:0 20px 90px #0b21142e;color:var(--ink)}dialog::backdrop{background:#12241d55;backdrop-filter:blur(4px)}dialog h2{margin:0 0 10px;font-size:24px;letter-spacing:-.5px}dialog p{font-size:13px;color:var(--muted);line-height:1.7}.dialog-head{display:flex;justify-content:space-between;align-items:start}.close{border:0;background:transparent;color:var(--muted);font-size:24px;line-height:1;padding:0 0 10px 15px}label{font-size:12px;font-weight:600;display:block;margin:20px 0 7px}input,textarea{width:100%;border:1px solid #d9e2dd;border-radius:10px;padding:12px 14px;background:#fff;color:var(--ink);font-size:14px}textarea{resize:vertical;line-height:1.6}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.form-actions .danger{margin-right:auto}.message{font-size:12px;color:var(--green);line-height:1.7;min-height:20px;margin:10px 0}.message.error{color:#a53d35}.login{min-height:100dvh;display:grid;place-items:center;padding:24px;background:radial-gradient(ellipse at 20% 10%,#e3eee6,transparent 55%),var(--paper)}.login-box{width:100%;max-width:410px;background:#fff;border:1px solid var(--line);border-radius:25px;padding:38px;box-shadow:0 12px 60px #26402c08}.login h1{font-size:31px;letter-spacing:-1px;margin:36px 0 14px}.login .btn{width:100%;margin-top:21px}.login-foot{text-align:center;font-size:11px;color:var(--muted);margin:25px 0 0}.muted{color:var(--muted)}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#183e2d;color:#fff;max-width:calc(100vw - 30px);padding:13px 20px;border-radius:12px;font-size:13px;z-index:1000}.tutor-shell{height:100dvh;display:grid;grid-template-columns:258px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:27px 19px;min-height:0}.sidebar .brand{padding:0 10px;margin-bottom:27px}.sidebar .btn{margin-bottom:16px}.back{font-size:12px;color:var(--muted);padding:0 10px;margin-bottom:21px}.sidebar-label{font-size:10px;text-transform:uppercase;letter-spacing:1.4px;color:#8b969b;padding:10px}.conversation-list{overflow:auto;flex:1}.conversation-item{width:100%;text-align:left;background:transparent;border:0;border-radius:9px;padding:12px 10px;color:#6c797f;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:3px}.conversation-item.active{background:var(--mint);color:var(--green)}.sidebar-bottom{font-size:11px;color:var(--muted);line-height:1.7;border-top:1px solid var(--line);padding:20px 10px 0}.tutor-main{display:flex;flex-direction:column;min-width:0;min-height:0}.tutor-head{height:77px;border-bottom:1px solid var(--line);padding:0 35px;display:flex;align-items:center;justify-content:space-between;background:#fff;flex-shrink:0}.tutor-head h1{font-size:17px;margin:0;letter-spacing:-.4px}.tutor-head p{font-size:11px;color:var(--muted);margin:5px 0 0}.chat-scroll{flex:1;overflow-y:auto;padding:30px max(24px,calc((100% - 820px)/2));scroll-behavior:smooth}.welcome{max-width:610px;margin:9vh auto 20px;text-align:center}.welcome .app-icon{margin:0 auto 25px;width:65px;height:65px;font-size:34px;background:#e8edfa;color:#6b71b6}.welcome h2{font-size:32px;letter-spacing:-1.1px;font-weight:630;margin-bottom:13px}.welcome p{font-size:14px;line-height:1.85;color:var(--muted)}.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:32px;text-align:left}.suggestions button{border:1px solid var(--line);border-radius:12px;background:#fff;padding:18px;text-align:left;color:#52675d;font-size:12px;line-height:1.7}.suggestions strong{display:block;color:var(--ink);font-weight:600;font-size:13px}.chat-message{margin:0 0 30px;max-width:100%;line-height:1.85;font-size:14px;overflow-wrap:anywhere}.chat-message.user{margin-left:auto;width:fit-content;max-width:86%;background:#e6eee8;border:1px solid #dbe7df;padding:12px 19px;border-radius:16px 16px 3px 16px;white-space:pre-wrap}.chat-message.assistant{padding-right:10px}.chat-message .role{font-size:11px;letter-spacing:.8px;color:var(--green);font-weight:700;text-transform:uppercase;margin-bottom:10px}.markdown p{margin:0 0 14px}.markdown h2,.markdown h3{font-size:18px;letter-spacing:-.3px;margin:23px 0 10px}.markdown ul,.markdown ol{padding-left:24px}.markdown code{background:#e8eceb;border-radius:4px;padding:2px 4px;font-size:12px}.markdown pre{background:#19252a;color:#e2eae6;border-radius:12px;overflow:auto;padding:20px;font-size:12px}.markdown pre code{background:transparent;color:inherit;padding:0}.markdown a{color:var(--green);text-decoration:underline}.markdown blockquote{border-left:3px solid #abc8b5;margin:20px 0;padding:5px 20px;color:#577262}.composer-wrap{padding:0 max(24px,calc((100% - 820px)/2)) 18px;flex-shrink:0}.quick-actions{display:flex;gap:7px;overflow-x:auto;padding:12px 0}.quick-actions button{white-space:nowrap;background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 11px;font-size:11px;color:#697a70}.composer{display:flex;background:#fff;border:1px solid #d8e2dc;border-radius:17px;align-items:flex-end;padding:8px;gap:10px;box-shadow:0 3px 15px #173b2610}.composer textarea{border:0;background:transparent;resize:none;max-height:170px;min-height:48px;outline:none!important;padding:13px 11px}.composer .btn{min-height:44px;min-width:48px;margin:2px}.composer-note{font-size:10px;text-align:center;color:#94a098;margin-top:10px}.stream-status{font-size:11px;color:var(--muted);min-height:16px;margin:0 0 8px}.file-list{max-height:60vh;overflow:auto;display:grid;gap:6px}.file-list button{text-align:left;border:1px solid var(--line);background:#f7faf8;border-radius:8px;padding:10px;font-size:12px;overflow-wrap:anywhere}.wide-dialog{max-width:900px}.visual-frame{width:100%;height:65vh;border:0;background:#fff}.file-preview{max-height:70vh;overflow:auto;font-size:13px;line-height:1.8}.mobile-back{display:none}.hidden,[hidden]{display:none!important}@media(max-width:950px){.shell{padding:0 25px}.hero{grid-template-columns:1fr 215px}.hero-art{transform:scale(.85)}.cards{gap:14px}.card-link{padding:23px;min-height:355px}.tutor-shell{grid-template-columns:215px 1fr}.tutor-head{padding:0 24px}}@media(max-width:700px){.shell{padding:0 20px}.topbar{height:83px}.brand{font-size:17px}.brand small{font-size:9px}.top-actions{gap:2px}.top-actions .btn{padding:9px}.hero{grid-template-columns:1fr;padding:43px 0 30px}.hero-art{display:none}h1{letter-spacing:-1.3px;font-size:40px}.subhead{font-size:14px}.cards{grid-template-columns:1fr}.card-link{min-height:285px;padding:25px}.card h3{margin-top:23px}.section-top{align-items:flex-start}.section-top .btn{font-size:11px;padding:10px}.note{padding:18px;align-items:flex-start}.footer{flex-direction:column;gap:10px;padding:25px 0}.tutor-shell{grid-template-columns:1fr}.sidebar{display:none}.tutor-head{padding:0 16px}.mobile-back{display:inline-block;font-size:11px;color:var(--muted);margin-right:9px}.chat-scroll{padding:25px 20px}.composer-wrap{padding:0 14px 13px}.welcome{margin-top:4vh}.welcome h2{font-size:27px}.suggestions{gap:8px}.suggestions button{padding:13px}.login-box{padding:30px}.chat-message.user{max-width:94%}.tutor-head .btn{font-size:11px;padding:9px}.section-top h2{font-size:16px}}