:root{--bg: #120016;--panel: #0c0010;--purple: #5A189A;--orange: #FF8C00;--red: #C1121F;--text: #ffffff;--text-muted: #bbbbbb;--border: rgba(255, 255, 255, .08);--border-subtle: rgba(255, 255, 255, .15)}*{box-sizing:border-box;font-family:Inter,system-ui,sans-serif}body,html,#root{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text)}.app-shell{display:flex;height:100vh;background:var(--bg)}.sidebar{width:300px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:12px;overflow-y:auto}.sidebar-header{margin-bottom:15px}.brand-title{font-size:20px;font-weight:700}.brand-subtitle{font-size:12px;opacity:.7}.chip{display:inline-block;padding:4px 10px;border-radius:12px;color:#fff;margin-top:6px;font-size:12px}.folder-tree{margin-top:15px}.folder-block,.subfolder-block{margin-bottom:10px}.folder-row,.subfolder-row{display:flex;justify-content:space-between;align-items:center;background:#5a189a26;padding:6px 8px;border-radius:6px}.folder-row:hover,.subfolder-row:hover{background:#5a189a40}.folder-name,.subfolder-name{font-weight:600}.subfolder-area{margin-left:12px;margin-top:6px}.chat-list{margin-top:6px}.chat-item{width:100%;padding:6px 10px;text-align:left;background:#ff8c001a;border:1px solid transparent;border-radius:6px;color:var(--text);margin-bottom:5px;cursor:pointer}.chat-item:hover{background:#ff8c0040}.chat-item.active{background:var(--orange);color:#000;font-weight:700}.btn{background:#222;color:#fff;border:1px solid var(--border-subtle);padding:8px 12px;border-radius:6px;cursor:pointer}.btn:hover{background:#333}.btn-primary{background:var(--purple)}.btn-primary:hover{background:#7b2bb8}.btn-sm{padding:6px 8px;font-size:12px}.main{flex:1;display:flex;flex-direction:column;background:var(--bg)}.main-header{padding:12px 20px;border-bottom:1px solid var(--border)}.main-title{font-size:20px;font-weight:700}.main-subtitle{opacity:.7;margin-bottom:4px}.chat-key{font-size:12px;margin-top:4px}.messages{flex:1;padding:20px;overflow-y:auto}.bubble{max-width:80%;margin-bottom:14px;padding:10px 14px;border-radius:14px;line-height:1.4}.bubble-user{background:var(--purple);align-self:flex-end}.bubble-model{background:#1a001f;border:1px solid rgba(255,255,255,.05);align-self:flex-start}.bubble-meta{font-size:10px;margin-top:4px;opacity:.7}.composer{padding:10px 20px;border-top:1px solid var(--border)}.composer-row{display:flex;gap:10px}textarea{flex:1;height:60px;resize:none;background:#18001f;border:1px solid var(--border-subtle);border-radius:8px;padding:10px;color:var(--text)}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;display:flex;justify-content:center;align-items:center}.modal{width:400px;padding:20px;background:var(--panel);border-radius:12px}.modal-field{margin-bottom:14px}.lock-screen{display:flex;justify-content:center;align-items:center;height:100vh}.lock-card{background:var(--panel);padding:30px;border-radius:14px;min-width:350px;border:1px solid var(--border-subtle)}.loading-dot{width:5px;height:5px;background:var(--orange);display:inline-block;margin:0 2px;border-radius:50%;animation:pulse 1s infinite ease-in-out}@keyframes pulse{0%,to{opacity:.2}50%{opacity:1}}