:root{--sig-light: #DFA57D;--sig-medium: #A1673F;--sig-dark: #804620;--sig-medium-glow: rgba(161, 103, 63, .3);--sig-medium-pulse: rgba(161, 103, 63, .1);--gold: #d4a539;--gold-light: #e8c056;--gold-glow: rgba(212, 165, 57, .3);--bg-primary: #0c0b0a;--bg-secondary: #12110f;--bg-card: #1c1916;--bg-hover: #27221d;--text-primary: #efe8df;--text-secondary: #a39585;--text-muted: #645848;--border: #2e2720;--border-light: #3d342a;--success: #6dbf5a;--danger: #d94f4f}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Outfit,sans-serif;background:var(--bg-primary);color:var(--text-primary);height:100vh;overflow:hidden}.app{display:grid;grid-template-columns:268px 1fr;grid-template-rows:54px 1fr;height:100vh}.topbar{grid-column:1 / -1;background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 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6px);right:0;background:var(--bg-card);border:1px solid var(--border-light);border-radius:10px;padding:4px;min-width:160px;box-shadow:0 8px 24px #0006;animation:modalIn .15s ease;z-index:200}.user-dropdown-item{width:100%;padding:9px 14px;border:none;border-radius:7px;background:transparent;color:var(--text-secondary);font-family:Outfit,sans-serif;font-size:13px;font-weight:500;cursor:pointer;text-align:left;transition:all .15s}.user-dropdown-item:hover{background:var(--bg-hover);color:var(--danger)}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-section{padding:14px}.sidebar-title{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--text-muted);margin-bottom:10px;text-transform:uppercase}.new-chat-btn{width:100%;padding:10px 14px;background:var(--sig-medium);color:#fff;border:none;border-radius:10px;font-family:Outfit,sans-serif;font-size:13px;font-weight:600;cursor:pointer;transition:all 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h1{font-size:30px;font-weight:700;margin-bottom:8px;background:linear-gradient(135deg,var(--sig-dark),var(--sig-medium),var(--sig-light),var(--sig-medium));background-size:300% 300%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:gradShift 5s ease infinite}@keyframes gradShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.welcome-text p{color:var(--text-secondary);font-size:14px;line-height:1.6}.quick-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:680px;width:100%}.quick-action{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px 18px;cursor:pointer;transition:all .25s;text-align:left}.quick-action:hover{border-color:var(--sig-medium);transform:translateY(-3px);box-shadow:0 8px 30px #0000004d,0 0 0 1px 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var(--border);color:var(--text-primary);text-decoration:none;font-size:12px;transition:all .2s}.file-pill:hover{border-color:var(--sig-medium);background:var(--bg-hover)}.file-pill-icon{flex-shrink:0}.file-pill-name{font-weight:500}.thinking-dots{display:flex;align-items:center;gap:10px;padding-left:36px}.thinking-dots .dot-label{font-size:13px;color:var(--sig-medium);font-weight:500}.thinking-dots .dots span{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--sig-medium);margin:0 2px;animation:dotPulse 1.4s ease infinite}.thinking-dots .dots span:nth-child(2){animation-delay:.2s}.thinking-dots .dots span:nth-child(3){animation-delay:.4s}@keyframes dotPulse{0%,80%,to{opacity:.25;transform:scale(.8)}40%{opacity:1;transform:scale(1.3)}}.input-area{padding:14px 56px 22px;background:var(--bg-primary)}.input-wrapper{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;display:flex;align-items:flex-end;padding:6px;transition:border-color 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18px;border-radius:9px;border:none;font-family:Outfit,sans-serif;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-primary{background:var(--sig-medium);color:#fff}.btn-primary:hover{background:var(--sig-light);box-shadow:0 4px 15px var(--sig-medium-glow)}.login-screen{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-primary);z-index:1000;display:flex;align-items:center;justify-content:center}.login-card{text-align:center;max-width:380px;width:90%}.login-brain{display:block;margin:0 auto 20px}.login-logo{margin-bottom:8px}.login-logo img{height:30px;opacity:.85}.login-card h1{font-family:DM 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svg{width:20px;height:20px}.login-footer{margin-top:28px;font-size:11px;color:var(--text-muted);line-height:1.6}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}@media(max-width:768px){.app{grid-template-columns:1fr}.sidebar{display:none}.message{padding:12px 20px}.input-area{padding:12px 16px 18px}.quick-actions{grid-template-columns:1fr}}