:root{--bg:#212121;--side:#171717;--panel:#2b2b2b;--line:#3d3d3d;--ink:#ececec;--muted:#a0a0a0;--user:#303030;--danger:#ff9d94}*{box-sizing:border-box}html,body{margin:0;background:var(--bg)}body{color:var(--ink);font:14px/1.5 "DM Sans",sans-serif}.app-shell{min-height:100dvh;display:grid;grid-template-columns:264px minmax(0,1fr)}.sidebar{position:fixed;inset:0 auto 0 0;z-index:4;display:flex;flex-direction:column;width:264px;height:100dvh;padding:18px 12px 14px;background:var(--side);border-right:1px solid var(--line)}main{grid-column:2;min-width:0}.brand{display:flex;gap:10px;align-items:center;padding:4px 8px 20px;color:inherit;text-decoration:none}.brand b{display:block;font-size:16px}.brand small,.topbar small,.status,.connection,.empty-history{color:var(--muted);font-size:10px}.logo-wrap,.auth-logo{display:grid;place-items:center;overflow:hidden;background:#e9e9e9;border-radius:9px}.logo-wrap{width:30px;height:30px}.logo-wrap img,.auth-logo img{width:100%;height:100%;object-fit:cover}.new-chat{width:100%;margin-bottom:20px;padding:10px;border:1px solid #4a4a4a;border-radius:9px;background:var(--panel);color:var(--ink);font:600 13px inherit;text-align:left;cursor:pointer}.history{min-height:100px;overflow:auto}.section-label{display:flex;justify-content:space-between;margin:0 8px 6px;color:#777;font-size:10px;letter-spacing:.1em}.chat-row{display:flex;align-items:center;border-radius:7px}.chat-row:hover,.chat-row.active,.command:hover,.login-button:hover,.user-menu:hover{background:#2d2d2d}.chat-item{width:100%;overflow:hidden;padding:8px;border:0;background:transparent;color:#bbb;text-align:left;text-overflow:ellipsis;white-space:nowrap;font:12px inherit;cursor:pointer}.delete-chat{width:27px;height:27px;margin-right:4px;border:0;border-radius:6px;background:transparent;color:#999;font-size:18px;opacity:0;cursor:pointer}.chat-row:hover .delete-chat,.chat-row:focus-within .delete-chat{opacity:1}.delete-chat:hover{background:#4b302e;color:var(--danger)}.quick{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}.command{display:flex;justify-content:space-between;width:100%;padding:6px 8px;border:0;border-radius:6px;background:transparent;color:var(--muted);font:inherit;cursor:pointer}.command code,kbd{font:11px "DM Mono",monospace}.account{margin-top:auto;padding:14px 3px 9px}.login-button,.user-menu{display:flex;justify-content:space-between;width:100%;padding:9px 8px;border:0;border-radius:7px;background:transparent;color:#ddd;font:500 12px inherit;cursor:pointer}.topbar{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 29px;border-bottom:1px solid var(--line);background:#212121e8}.topbar b{display:block;font-size:13px}.mobile-menu{display:none;border:0;background:transparent;color:#eee;font-size:18px}#chat{width:min(800px,100%);min-height:calc(100dvh - 60px);margin:auto;padding:36px 28px 175px}.hero{max-width:650px;margin:12vh auto 0;text-align:center;animation:rise .35s ease}.eyebrow{color:#999;font-size:10px;letter-spacing:.13em}.hero h1{margin:0;font-size:34px;letter-spacing:-1.2px;line-height:1.18}.intro{color:var(--muted)}.ideas{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:30px;text-align:left}.idea{padding:13px 14px;border:1px solid var(--line);border-radius:11px;background:var(--panel);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.idea:hover{background:#323232}.idea b,.idea small{display:block}.idea small{margin-top:3px;color:var(--muted);font-size:11px}.message{display:grid;grid-template-columns:32px minmax(0,1fr);gap:12px;margin-bottom:28px;animation:rise .2s ease}.avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#3b3b3b;color:#eee;font-size:11px}.assistant .avatar{padding:4px;background:#e9e9e9}.assistant .avatar img{width:100%;height:100%;object-fit:contain}.error .avatar{background:#573330;color:var(--danger)}.who{margin:1px 0 5px;font-size:12px;font-weight:650}.content{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65}.user .content{display:inline-block;padding:9px 12px;border-radius:13px 13px 3px;background:var(--user)}.tool .content,.system .content,.error .content{padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel);font:12px/1.55 "DM Mono",monospace}.error .content{color:var(--danger)}.sources{margin-top:11px;padding-left:10px;border-left:2px solid #777}.sources a{display:block;color:#ccc;font-size:12px}.compose-wrap{position:fixed;z-index:2;right:0;bottom:0;left:264px;padding:30px 28px 17px;background:linear-gradient(transparent,var(--bg) 34%)}.composer{position:relative;max-width:800px;margin:auto;border:1px solid #4a4a4a;border-radius:14px;background:var(--panel)}.composer:focus-within{border-color:#777}textarea{display:block;width:100%;min-height:59px;max-height:180px;padding:16px 60px 14px 16px;border:0;outline:0;resize:none;background:transparent;color:var(--ink);font:14px/1.45 inherit}.send{position:absolute;right:9px;bottom:9px;width:38px;height:38px;border:0;border-radius:10px;background:#ececec;color:#202020;font-size:18px;cursor:pointer}.send:disabled{opacity:.45}.hint{text-align:center;color:#777;font-size:10px}.palette{display:none;position:absolute;right:0;bottom:71px;left:0;padding:6px;border:1px solid var(--line);border-radius:10px;background:#303030}.palette.show{display:block}.option{padding:8px 9px}.option:hover{background:#3a3a3a}.option small{margin-left:8px;color:var(--muted)}.auth-dialog{width:min(405px,calc(100vw - 28px));padding:0;border:1px solid var(--line);border-radius:16px;background:var(--panel);color:var(--ink)}.auth-dialog::backdrop{background:#0009}.auth-card{position:relative;padding:33px;text-align:center}.auth-logo{width:42px;height:42px;margin:auto}.close{position:absolute;top:10px;right:13px;border:0;background:transparent;color:#aaa;font-size:23px}.google-button{width:100%;padding:11px;border:0;border-radius:9px;background:#f5f5f5;color:#222;font:600 13px inherit}.auth-error{color:var(--danger)}.auth-legal{color:#888;font-size:10px}@keyframes rise{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@media(max-width:740px){.app-shell{display:block}.sidebar{transform:translateX(-102%);transition:transform .22s}.sidebar.open{transform:translateX(0)}main{display:block}.mobile-menu{display:block}#chat{padding:27px 16px 142px}.ideas{grid-template-columns:1fr}.compose-wrap{left:0;padding:20px 15px 13px}.delete-chat{opacity:1}}