*{box-sizing:border-box}
:root{color-scheme:dark;--bg:#212121;--panel:#171717;--panel2:#292929;--line:#414141;--text:#f5f5f5;--muted:#a7a7a7;--accent:#f28a35;--blue:#83b8ff;--success:#50c878;--danger:#ff7777}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text)}
button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}
.app{display:flex;min-height:100vh}
.sidebar{width:250px;flex:0 0 250px;background:var(--panel);padding:24px 16px;display:flex;flex-direction:column;gap:24px;border-right:1px solid #252525}
.logo{font-size:23px;font-weight:750;letter-spacing:-.6px}.logo span,.welcome h1 span{color:var(--accent)}
.sidebar-info{color:var(--muted);font-size:13px;line-height:1.7}
.side-link,.side-button{display:block;border:1px solid var(--line);border-radius:10px;padding:11px 12px;color:var(--text);text-decoration:none;background:#222;font-size:13px;text-align:center}
.side-link:hover,.side-button:hover{border-color:var(--accent)}
.main{min-width:0;flex:1;display:flex;flex-direction:column}
.topbar{height:64px;flex-shrink:0;padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #383838}
.status{color:var(--muted);font-size:12px;display:flex;align-items:center;gap:7px}.status i{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--success)}
.chat{width:100%;max-width:900px;flex:1;overflow-y:auto;margin:0 auto;padding:28px 24px}
.welcome{margin:15vh auto 0;text-align:center;max-width:620px}.welcome h1{font-size:clamp(27px,4vw,38px);margin-bottom:12px}.welcome p,.muted,.dashboard-heading p{color:var(--muted);line-height:1.6}
.message{width:fit-content;max-width:85%;padding:13px 16px;border-radius:16px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere;margin:14px 0}
.message.user{margin-left:auto;background:#353535;border:1px solid #4a4a4a}
.message.answer{margin-right:auto;background:#222d3b;border:1px solid #354a60}
.message small{display:block;margin-top:7px;color:#aaa;font-size:11px}
.composer{width:calc(100% - 32px);max-width:850px;margin:0 auto;padding:8px;display:flex;gap:10px;border:1px solid #555;border-radius:16px;background:#2b2b2b}
.composer input{min-width:0;flex:1;padding:12px;color:white;background:transparent;border:0;outline:0}
.composer button{width:44px;height:44px;border:0;border-radius:12px;background:var(--accent);color:#171717;font-size:25px;font-weight:bold}
.hint{text-align:center;color:#858585;font-size:11px;margin:9px 0 18px}
.hidden{display:none!important}
.login-wrap{display:flex;justify-content:center;align-items:flex-start;padding:9vh 20px}
.login-card{width:100%;max-width:410px;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;gap:12px}
.login-card h1{font-size:23px;margin:0}.login-card p{color:var(--muted);font-size:13px;line-height:1.5;margin:0 0 8px}
.login-card label{font-size:13px;color:#ddd}
.login-card input,.answer-input{width:100%;padding:12px 13px;border:1px solid #505050;border-radius:10px;background:#202020;color:var(--text);outline:none}
.login-card input:focus,.answer-input:focus{border-color:var(--accent)}
.primary-button,.send-answer{border:0;border-radius:10px;background:var(--accent);color:#171717;font-weight:700;padding:12px 16px}
.error-text{color:var(--danger)!important;min-height:16px}
.dashboard{width:100%;max-width:1000px;margin:0 auto;padding:28px 24px}
.dashboard-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
.dashboard-heading h1{font-size:25px;margin:0 0 5px}.dashboard-heading p{font-size:13px;margin:0}
.count-pill{white-space:nowrap;border:1px solid #565656;border-radius:99px;padding:8px 12px;font-size:12px;color:#ddd}
.question-list{display:flex;flex-direction:column;gap:14px}
.question-card{padding:18px;border:1px solid var(--line);border-radius:15px;background:#252525}
.question-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:12px}
.question-label{font-weight:750;color:var(--accent);font-size:15px}.question-meta{font-size:11px;color:var(--muted);margin-top:5px}
.question-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.55;margin:12px 0 17px}
.answer-form{display:flex;gap:10px;align-items:stretch}.answer-input{flex:1;min-width:0;resize:vertical;min-height:44px;max-height:180px}
.send-answer{min-width:135px}.empty-state{padding:24px;border:1px dashed #4b4b4b;border-radius:14px;color:var(--muted);text-align:center;line-height:1.6}
@media(max-width:650px){.sidebar{width:76px;flex-basis:76px;padding:16px 8px;align-items:center}.logo{font-size:14px;writing-mode:vertical-rl}.sidebar-info{display:none}.side-link,.side-button{font-size:10px;padding:9px 3px;overflow-wrap:anywhere;width:100%}.topbar{padding:0 14px}.status{font-size:10px}.chat{padding:20px 14px}.dashboard{padding:20px 14px}.dashboard-heading{align-items:flex-start;flex-direction:column}.answer-form{flex-direction:column}.send-answer{width:100%}}