*{box-sizing:border-box}
:root{color-scheme:dark;--bg:#212121;--panel:#171717;--panel2:#262626;--line:#343434;--text:#ececec;--muted:#a1a1a1;--accent:#d7e7df;--accent-ink:#15251e}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px}
button,input,textarea{font:inherit}
button{cursor:pointer}
.app-shell{display:flex;height:100vh;min-height:560px;overflow:hidden}
.sidebar{width:268px;flex:0 0 268px;background:var(--panel);display:flex;flex-direction:column;padding:17px 12px 12px;border-right:1px solid #2c2c2c;z-index:5}
.sidebar-top{display:flex;align-items:center;justify-content:space-between;padding:2px 7px 23px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:17px;letter-spacing:.2px}
.brand-mark,.welcome-mark{display:grid;place-items:center;background:#dcebe3;color:#1d3026;font-weight:800;border-radius:10px}
.brand-mark{width:30px;height:30px;font-size:17px}.brand-light{font-weight:400;color:#b9b9b9}
.new-chat-button{height:42px;border:1px solid #414141;border-radius:9px;background:transparent;color:var(--text);display:flex;align-items:center;gap:10px;padding:0 12px;text-align:left}
.new-chat-button:hover,.settings-button:hover,.chat-item:hover{background:#292929}
.plus{font-size:21px;color:#d7e7df}.shortcut{margin-left:auto;color:#777;font-size:11px}
.history-heading{font-size:10px;font-weight:700;letter-spacing:1.1px;color:#858585;padding:26px 9px 10px}
.chat-list{overflow-y:auto;flex:1;min-height:50px}
.chat-item{display:flex;align-items:center;gap:8px;padding:10px 9px;border-radius:7px;color:#c9c9c9;cursor:pointer;margin:1px 0}
.chat-item.active{background:#2b2b2b;color:#fff}.chat-item-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;font-size:13px}
.chat-item .delete-chat{opacity:0;border:0;background:transparent;color:#999;padding:2px 4px;font-size:17px}
.chat-item:hover .delete-chat,.chat-item.active .delete-chat{opacity:1}
.empty-history{padding:10px;color:#777;font-size:12px;line-height:1.5}
.sidebar-bottom{border-top:1px solid #303030;padding-top:13px}
.connection-row{display:flex;align-items:center;gap:10px;padding:7px 8px 12px}
.status-dot{width:8px;height:8px;border-radius:50%;background:#d3a34e;box-shadow:0 0 0 3px #d3a34e1a}
.status-dot.online{background:#62b88a;box-shadow:0 0 0 3px #62b88a1a}
.connection-title{font-size:12px;font-weight:600}.connection-subtitle{font-size:11px;color:#888;margin-top:3px}
.settings-button{border:0;background:transparent;color:#c5c5c5;width:100%;text-align:left;border-radius:7px;padding:9px 8px;font-size:12px}
.settings-icon{margin-right:8px}.user-card{display:flex;align-items:center;gap:10px;padding:14px 7px 3px;margin-top:6px;border-top:1px solid #303030}
.avatar{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#414b46;color:#e0eee6;font-weight:700}
.user-name{font-size:12px;font-weight:600}.user-plan{font-size:10px;color:#858585;margin-top:3px}
.main-panel{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}
.topbar{height:57px;flex:0 0 57px;display:flex;align-items:center;padding:0 24px;border-bottom:1px solid #303030;gap:12px}
.topbar-title{font-size:14px;font-weight:650}.chevron{color:#888;margin-left:4px}.topbar-right{margin-left:auto}
.private-label{font-size:11px;color:#999;border:1px solid #3a3a3a;padding:6px 9px;border-radius:20px}.lock{margin-right:5px}
.conversation{flex:1;overflow-y:auto;display:flex;flex-direction:column;padding:32px 20px 20px}
.welcome{width:min(720px,100%);margin:auto auto 10vh;text-align:center}
.welcome-mark{width:48px;height:48px;border-radius:15px;font-size:25px;margin:0 auto 22px}
.welcome h1{font-size:27px;letter-spacing:-.8px;font-weight:600;margin:0 0 10px}
.welcome>p{color:#999;font-size:14px;margin:0 0 30px}
.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:10px;text-align:left}
.suggestion{display:flex;align-items:center;gap:13px;padding:14px;border:1px solid #3b3b3b;border-radius:11px;background:#252525;color:var(--text);text-align:left;min-height:72px}
.suggestion:hover{background:#2c2c2c;border-color:#555}
.suggestion-icon{font-size:19px;color:#c6dacf;width:22px;text-align:center}
.suggestion strong{display:block;font-size:12px;font-weight:600;margin-bottom:5px}.suggestion small{display:block;font-size:11px;color:#929292}
.messages{width:min(790px,100%);margin:0 auto;display:none;padding-bottom:20px}
.messages.visible{display:block}
.message{display:flex;gap:14px;margin:24px 0;align-items:flex-start}
.message-avatar{width:29px;height:29px;flex:0 0 29px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700}
.message.user .message-avatar{background:#3a3a3a;color:#eee}.message.assistant .message-avatar{background:#dcebe3;color:#1d3026}
.message-content{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;font-size:14px;padding-top:3px;flex:1}
.message.user .message-content{background:#303030;padding:11px 14px;border-radius:14px;max-width:88%;flex:0 1 auto}
.typing{color:#999;font-size:13px}
.composer-area{width:min(790px,calc(100% - 40px));margin:0 auto;padding:8px 0 15px}
.composer{border:1px solid #4a4a4a;border-radius:17px;background:#2b2b2b;padding:13px 13px 9px;box-shadow:0 5px 25px #0002}
.composer:focus-within{border-color:#696969}
textarea{display:block;width:100%;resize:none;max-height:180px;min-height:29px;background:transparent;border:0;outline:0;color:var(--text);padding:2px 3px 9px;font-size:14px;line-height:1.5}
textarea::placeholder{color:#858585}
.composer-bottom{display:flex;align-items:center;justify-content:space-between}
.composer-hint{font-size:10px;color:#858585;padding-left:3px}
.send-button{width:31px;height:31px;border:0;border-radius:9px;background:#dcebe3;color:#1d3026;font-size:22px;font-weight:700;line-height:1}
.send-button:disabled{background:#505050;color:#888;cursor:not-allowed}
.footer-note{text-align:center;color:#777;font-size:10px;padding-top:10px}
.icon-button{border:0;background:transparent;color:#aaa;font-size:22px;padding:4px 7px;border-radius:6px}.icon-button:hover{background:#333;color:#fff}
.menu-button,.mobile-close{display:none}
.modal-backdrop{position:fixed;inset:0;background:#0009;z-index:20;display:grid;place-items:center;padding:20px}
.hidden{display:none!important}
.modal{width:min(470px,100%);background:#252525;border:1px solid #444;border-radius:15px;padding:22px;box-shadow:0 20px 70px #0008}
.modal-header{display:flex;align-items:center;justify-content:space-between}.modal h2{font-size:18px;margin:0}
.modal-description{color:#aaa;font-size:12px;line-height:1.6;margin:12px 0 20px}
.modal label{display:block;font-size:12px;font-weight:600;margin-bottom:8px}
.modal input{width:100%;background:#181818;border:1px solid #484848;border-radius:8px;padding:11px;color:#eee;outline:none}
.modal input:focus{border-color:#a0b9aa}.field-help{font-size:11px;line-height:1.5;color:#888}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}
.primary-button,.secondary-button{border-radius:8px;padding:9px 13px;font-size:12px;font-weight:600}
.primary-button{background:#dcebe3;color:#1d3026;border:0}.secondary-button{background:transparent;border:1px solid #555;color:#ddd}
.settings-warning{margin-top:17px;padding:10px;background:#302c24;border-radius:7px;color:#cbbd9d;font-size:11px;line-height:1.5}
.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px);background:#eee;color:#222;padding:10px 15px;border-radius:8px;font-size:12px;opacity:0;pointer-events:none;transition:.2s;z-index:30}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:700px){.sidebar{position:fixed;inset:0 auto 0 0;transform:translateX(-105%);transition:transform .22s;width:280px}.sidebar.open{transform:translateX(0);box-shadow:15px 0 50px #0008}.menu-button,.mobile-close{display:block}.topbar{padding:0 14px}.private-label{font-size:10px}.conversation{padding:25px 16px}.welcome{margin:auto auto 8vh}.welcome h1{font-size:23px}.suggestions{grid-template-columns:1fr}.composer-area{width:calc(100% - 28px)}}
@media(max-height:650px){.welcome{margin:25px auto}.welcome-mark{margin-bottom:12px}.welcome>p{margin-bottom:18px}}