:root{color-scheme:light dark;--bg: #f4f5f7;--panel: #ffffff;--sidebar-bg: #16211c;--sidebar-fg: #e7ece8;--sidebar-muted: #9aa8a0;--text: #1b1d22;--text-muted: #5b6270;--border: #e2e4e9;--accent: #1f8a52;--accent-contrast: #ffffff;--bubble-bot: #eef1f6;--bubble-user: #1f8a52;--bubble-user-fg: #ffffff;font-family:Segoe UI,system-ui,-apple-system,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #14161b;--panel: #1c1f26;--sidebar-bg: #0f1613;--sidebar-fg: #e7ece8;--sidebar-muted: #7f8f86;--text: #eef0f4;--text-muted: #a3a9b5;--border: #2a2e37;--bubble-bot: #262a33;--bubble-user: #2fa968;--bubble-user-fg: #ffffff}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.app-shell{display:flex;height:100vh;width:100%}.sidebar{width:300px;flex-shrink:0;background:var(--sidebar-bg);color:var(--sidebar-fg);display:flex;flex-direction:column;padding:24px 20px;gap:20px;overflow-y:auto}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:64px;height:64px;border-radius:10px;object-fit:cover;flex-shrink:0}.brand h1{font-size:15px;margin:0;line-height:1.3}.brand p{font-size:12px;margin:2px 0 0;color:var(--sidebar-muted)}.file-list h2{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--sidebar-muted);margin:0 0 8px}.file-list-empty{font-size:12.5px;color:var(--sidebar-muted);margin:0}.file-list ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.file-list button{width:100%;text-align:left;background:#ffffff0f;border:1px solid #2a352d;color:var(--sidebar-fg);border-radius:8px;padding:8px 10px;font-size:12.5px;cursor:pointer;word-break:break-all}.file-list button:hover{border-color:var(--accent)}.restart-button{margin-top:auto;border:1px solid #2a352d;background:transparent;color:var(--sidebar-fg);border-radius:8px;padding:10px 12px;font-size:13px;cursor:pointer}.restart-button:hover{border-color:var(--accent);color:#fff}.disclaimer{font-size:11px;line-height:1.5;color:var(--sidebar-muted);margin:0}.main-panel{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}.starter-screen{max-width:640px;margin:auto;padding:32px;text-align:center}.starter-identity{display:flex;flex-direction:column;align-items:center;gap:8px;margin:0 0 16px}.avatar-lg{width:64px;height:64px;margin-top:0}.starter-identity-name{font-size:13px;font-weight:600;color:var(--text-muted);letter-spacing:.02em}.starter-screen h2{margin:0 0 12px;font-size:24px}.starter-screen>p{color:var(--text-muted);line-height:1.6;margin:0 0 28px}.starter-grid{display:flex;flex-direction:column;gap:10px}.starter-card{text-align:left;padding:14px 16px;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text);font-size:14px;cursor:pointer;transition:border-color .15s ease,transform .1s ease}.starter-card:hover{border-color:var(--accent);transform:translateY(-1px)}.chat-window{flex:1;overflow-y:auto;padding:28px 32px 12px;display:flex;flex-direction:column;gap:14px}.bubble-row{display:flex;gap:10px;max-width:640px}.bubble-row.user{align-self:flex-end;flex-direction:row-reverse}.bubble-stack{display:flex;flex-direction:column;gap:8px}.avatar{width:50px;height:50px;border-radius:20%;object-fit:cover;flex-shrink:0;margin-top:2px}.bubble{background:var(--bubble-bot);color:var(--text);padding:11px 14px;border-radius:12px;font-size:14.5px;line-height:1.55;white-space:pre-wrap}.bubble-row.user .bubble{background:var(--bubble-user);color:var(--bubble-user-fg)}.bubble.typing{display:flex;gap:4px;align-items:center;padding:14px}.bubble.typing span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typing-blink 1.2s infinite ease-in-out}.bubble.typing span:nth-child(2){animation-delay:.2s}.bubble.typing span:nth-child(3){animation-delay:.4s}@keyframes typing-blink{0%,80%,to{opacity:.25}40%{opacity:1}}.file-card{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:10px 12px}.file-card-icon{font-size:22px}.file-card-name{font-size:12.5px;font-family:monospace;margin-bottom:6px;word-break:break-all}.file-card-body button{border:1px solid var(--accent);background:transparent;color:var(--accent);padding:6px 12px;border-radius:999px;font-size:12.5px;cursor:pointer}.file-card-body button:hover{background:var(--accent);color:#fff}.composer{display:flex;align-items:flex-end;gap:8px;padding:12px 32px 24px;border-top:1px solid var(--border);background:var(--panel)}.composer textarea{flex:1;resize:none;border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px;background:var(--bg);color:var(--text)}.composer textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}.composer button[type=submit]{border:none;background:var(--accent);color:#fff;border-radius:10px;padding:0 20px;height:40px;font-size:14px;cursor:pointer}.composer button:disabled{opacity:.5;cursor:default}.icon-button{border:1px solid var(--border);background:var(--bg);border-radius:10px;width:40px;height:40px;font-size:16px;cursor:pointer;flex-shrink:0}.icon-button.listening{background:#fde2e2;border-color:#e05252}@media(max-width:780px){.app-shell{flex-direction:column}.sidebar{width:100%}}