.chat-page{position:fixed;inset:0;display:flex;background:var(--bg-color);font-family:Inter,sans-serif}.auth-overlay{position:fixed;inset:0;background:var(--bg-darker);display:flex;align-items:center;justify-content:center;z-index:200;padding:24px}.auth-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:20px;padding:48px 40px;max-width:400px;width:100%;text-align:center;box-shadow:0 32px 64px var(--shadow-color)}.auth-logo{width:64px;height:64px;background:rgba(var(--accent-gold-rgb),.08);border:1px solid rgba(var(--accent-gold-rgb),.2);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}.auth-title{font-family:Playfair Display,serif;font-size:1.8rem;font-weight:700;color:var(--text-primary);margin:0 0 10px}.auth-desc{color:var(--text-muted);font-size:.92rem;line-height:1.6;margin:0 0 28px}.auth-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}.auth-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 28px;border-radius:10px;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s}.auth-btn.primary{background:var(--accent-gold);color:var(--bg-darker);border:1px solid var(--accent-gold)}.auth-btn.primary:hover{background:#e0c040;transform:translateY(-1px);box-shadow:0 6px 20px rgba(var(--accent-gold-rgb),.3)}.auth-btn.secondary{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary)}.auth-btn.secondary:hover{border-color:rgba(var(--accent-gold-rgb),.3);color:var(--text-primary)}.auth-back{font-size:.82rem;color:var(--text-muted);text-decoration:none;transition:color .2s}.auth-back:hover{color:var(--accent-gold)}.chat-app{display:flex;width:100%;height:100%;overflow:hidden}.chat-sidebar{width:260px;flex-shrink:0;background:var(--bg-darker);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:width .25s ease,transform .25s ease;overflow:hidden;z-index:50}.chat-sidebar.collapsed{width:0;border-right:none}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:18px 16px 14px;flex-shrink:0}.sidebar-brand{display:flex;align-items:center;gap:9px}.brand-icon{width:30px;height:30px;background:rgba(var(--accent-gold-rgb),.1);border:1px solid rgba(var(--accent-gold-rgb),.2);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.brand-name{font-family:Playfair Display,serif;font-size:1rem;font-weight:700;color:var(--text-primary);white-space:nowrap}.sidebar-collapse{background:none;border:none;color:var(--text-muted);width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;cursor:pointer;transition:all .15s;flex-shrink:0}.sidebar-collapse:hover{color:var(--text-primary);background:#ffffff0a}.new-chat-btn{display:flex;align-items:center;gap:8px;margin:0 12px 8px;padding:10px 14px;background:rgba(var(--accent-gold-rgb),.07);border:1px solid rgba(var(--accent-gold-rgb),.18);border-radius:10px;color:var(--accent-gold);font-size:.84rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:Inter,sans-serif;white-space:nowrap}.new-chat-btn:hover{background:rgba(var(--accent-gold-rgb),.13);border-color:rgba(var(--accent-gold-rgb),.35)}.sidebar-section{flex-shrink:0;padding:8px 12px}.sidebar-label{font-size:.62rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;padding:6px 6px 10px}.mode-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;background:none;border:none;font-family:Inter,sans-serif;font-size:.85rem;color:var(--text-muted);border-radius:8px;cursor:pointer;transition:all .15s;white-space:nowrap;text-align:left}.mode-item svg{flex-shrink:0;opacity:.55}.mode-item:hover{background:#ffffff0a;color:var(--text-secondary)}.mode-item:hover svg{opacity:.75}.mode-item.active{background:rgba(var(--accent-gold-rgb),.1);color:var(--accent-gold)}.mode-item.active svg{opacity:1;color:var(--accent-gold)}.sidebar-history{display:flex;flex-direction:column;border-top:1px solid var(--border-color);min-height:0;flex:1;overflow:hidden}.sidebar-history .sidebar-label{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 8px;flex-shrink:0}.clear-history-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;padding:3px;border-radius:4px;transition:color .15s;opacity:.6}.clear-history-btn:hover{color:#f87171;opacity:1}.history-list{flex:1;overflow-y:auto;padding:0 8px 8px}.history-empty{font-size:.78rem;color:var(--text-muted);text-align:center;padding:20px 12px;font-style:italic}.history-item{display:flex;align-items:center;gap:4px;border-radius:8px;margin-bottom:2px;transition:background .15s;position:relative}.history-item:hover{background:#ffffff0a}.history-item:hover .history-delete{opacity:1}.history-item.active{background:rgba(var(--accent-gold-rgb),.08)}.history-item-inner{flex:1;min-width:0;padding:9px 10px;cursor:pointer}.history-title{font-size:.82rem;color:var(--text-secondary);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4}.history-item.active .history-title{color:var(--accent-gold)}.history-time{font-size:.68rem;color:var(--text-muted);margin-top:2px}.history-delete{background:none;border:none;color:var(--text-muted);cursor:pointer;width:26px;height:26px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:6px;opacity:0;transition:all .15s;margin-right:4px}.history-delete:hover{color:#f87171;background:#f871711a}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:8px;flex-shrink:0}.user-info{display:flex;align-items:center;gap:9px;min-width:0}.user-avatar-sm{width:30px;height:30px;background:rgba(var(--accent-gold-rgb),.1);border:1px solid rgba(var(--accent-gold-rgb),.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent-gold);flex-shrink:0}.user-name{font-size:.82rem;color:var(--text-secondary);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .15s;flex-shrink:0}.logout-btn:hover{color:var(--text-primary);background:#ffffff0d}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-color);position:relative}.sidebar-open-btn{display:none;position:absolute;top:14px;left:14px;z-index:10;background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;width:36px;height:36px;align-items:center;justify-content:center;color:var(--text-muted);cursor:pointer;transition:all .15s;box-shadow:0 2px 8px var(--shadow-color)}.sidebar-open-btn:hover{color:var(--accent-gold);border-color:rgba(var(--accent-gold-rgb),.3)}.sidebar-open-btn.visible{display:flex}.chat-topbar{display:none;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border-color);background:var(--bg-darker);flex-shrink:0}.topbar-menu,.topbar-new{background:none;border:none;color:var(--text-muted);cursor:pointer;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:all .15s}.topbar-menu:hover,.topbar-new:hover{color:var(--text-primary);background:#ffffff0d}.topbar-title{font-family:Playfair Display,serif;font-size:1rem;font-weight:700;color:var(--text-primary)}.chat-scroll{flex:1;overflow-y:auto;overflow-x:hidden}.chat-messages{max-width:760px;margin:0 auto;padding:40px 24px 20px;display:flex;flex-direction:column;gap:28px;min-height:100%}.welcome-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px 20px;gap:16px;animation:fadeUp .4s ease}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.welcome-icon{width:64px;height:64px;background:rgba(var(--accent-gold-rgb),.08);border:1px solid rgba(var(--accent-gold-rgb),.18);border-radius:18px;display:flex;align-items:center;justify-content:center}.welcome-title{font-family:Playfair Display,serif;font-size:1.6rem;font-weight:700;color:var(--text-primary);margin:0;text-align:center}.welcome-sub{color:var(--text-muted);font-size:.92rem;text-align:center;margin:0;max-width:400px;line-height:1.6}.welcome-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:520px;margin-top:12px}.welcome-card{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;cursor:pointer;text-align:left;transition:all .2s;font-family:Inter,sans-serif}.welcome-card:hover{border-color:rgba(var(--accent-gold-rgb),.3);background:rgba(var(--accent-gold-rgb),.04);transform:translateY(-1px);box-shadow:0 4px 16px var(--shadow-color)}.wcard-icon{font-size:1.2rem;flex-shrink:0}.wcard-text{font-size:.84rem;font-weight:600;color:var(--text-secondary);line-height:1.4}.wcard-text small{font-weight:400;color:var(--text-muted);display:block;font-size:.76rem;margin-top:2px}.msg-row{display:flex;gap:14px;animation:msgIn .25s ease}@keyframes msgIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg-user{justify-content:flex-end}.msg-bubble{background:rgba(var(--accent-gold-rgb),.1);border:1px solid rgba(var(--accent-gold-rgb),.18);border-radius:18px 18px 4px;padding:12px 18px;font-size:.93rem;color:var(--text-primary);max-width:70%;line-height:1.65;word-break:break-word}.msg-ai{align-items:flex-start}.ai-icon{width:30px;height:30px;background:rgba(var(--accent-gold-rgb),.12);border:1px solid rgba(var(--accent-gold-rgb),.22);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent-gold);flex-shrink:0;margin-top:2px}.ai-content{flex:1;min-width:0}.ai-name{font-size:.8rem;font-weight:700;color:var(--text-primary);margin-bottom:6px}.ai-text{font-size:.93rem;color:var(--text-secondary);line-height:1.75;word-break:break-word}.chat-input-wrap{padding:16px 24px 20px;flex-shrink:0;background:var(--bg-color)}.chat-input-box{max-width:760px;margin:0 auto;background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:14px 16px 10px;transition:border-color .2s,box-shadow .2s;box-shadow:0 4px 24px var(--shadow-color)}.chat-input-box:focus-within{border-color:rgba(var(--accent-gold-rgb),.45);box-shadow:0 0 0 4px rgba(var(--accent-gold-rgb),.07),0 4px 24px var(--shadow-color)}.typing-bar{display:none;align-items:center;gap:6px;padding:0 4px 10px}.typing-bar.active{display:flex}.typing-dot{width:6px;height:6px;background:var(--accent-gold);border-radius:50%;opacity:.35;animation:tdot 1.4s infinite ease-in-out}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes tdot{0%,60%,to{opacity:.35;transform:scale(.85)}30%{opacity:.9;transform:scale(1.15)}}.typing-label{font-size:.72rem;color:var(--text-muted);margin-left:3px;font-weight:500}.input-row{display:flex;align-items:flex-end;gap:10px}.ai-text .md-h1,.ai-text .md-h2,.ai-text .md-h3{font-family:Playfair Display,serif;color:var(--text-primary);margin:14px 0 6px;line-height:1.35}.ai-text .md-h1{font-size:1.1rem}.ai-text .md-h2{font-size:1rem}.ai-text .md-h3{font-size:.95rem;color:var(--accent-gold)}.ai-text .md-p{margin:0;line-height:1.75;color:var(--text-secondary)}.ai-text .md-spacer{height:8px}.ai-text .md-list{margin:6px 0;padding-left:20px;display:flex;flex-direction:column;gap:4px}.ai-text .md-list li{font-size:.93rem;color:var(--text-secondary);line-height:1.65}.ai-text .md-list li::marker{color:var(--accent-gold)}.ai-text strong{color:var(--text-primary);font-weight:700}.ai-text em{font-style:italic;color:var(--text-secondary)}.ai-text .md-hr{border:none;border-top:1px solid var(--border-color);margin:12px 0}.ai-text .md-code{background:var(--bg-darker);border:1px solid var(--border-color);border-radius:8px;padding:12px 14px;font-size:.85rem;overflow-x:auto;margin:8px 0;white-space:pre}.ai-text .md-inline-code{background:rgba(var(--accent-gold-rgb),.1);color:var(--accent-gold);border-radius:4px;padding:1px 5px;font-size:.88em;font-family:monospace}.upload-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;width:32px;height:32px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:all .15s}.upload-btn:hover{color:var(--accent-gold);background:rgba(var(--accent-gold-rgb),.08)}.file-chip-area{display:flex;align-items:center;gap:8px;padding:0 4px 10px}.file-chip{display:inline-flex;align-items:center;gap:6px;background:rgba(var(--accent-gold-rgb),.08);border:1px solid rgba(var(--accent-gold-rgb),.2);border-radius:8px;padding:6px 10px;font-size:.78rem;color:var(--accent-gold);max-width:280px}.file-chip-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.file-chip-size{color:var(--text-muted);font-size:.72rem}.file-chip-remove{background:none;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;padding:1px;border-radius:4px;flex-shrink:0;transition:color .15s}.file-chip-remove:hover{color:#f87171}.file-parsing{display:flex;align-items:center;gap:4px;font-size:.74rem;color:var(--text-muted);font-style:italic}.file-parsing-dot{width:5px;height:5px;background:var(--accent-gold);border-radius:50%;opacity:.4;animation:tdot 1.4s infinite ease-in-out}.file-parsing-dot:nth-child(2){animation-delay:.2s}.file-parsing-dot:nth-child(3){animation-delay:.4s}.msg-file-badge{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:500;color:var(--accent-gold);background:rgba(var(--accent-gold-rgb),.07);border:1px solid rgba(var(--accent-gold-rgb),.15);border-radius:8px;padding:6px 10px;margin-bottom:10px;word-break:break-all;line-height:1.4}.msg-file-badge svg{flex-shrink:0}.chat-textarea{flex:1;background:none;border:none;outline:none;font-family:Inter,sans-serif;font-size:.95rem;color:var(--text-primary);line-height:1.6;resize:none;min-height:26px;max-height:200px;overflow-y:auto}.chat-textarea::placeholder{color:var(--text-muted)}.send-btn{background:var(--accent-gold);border:none;border-radius:10px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--bg-darker);cursor:pointer;flex-shrink:0;transition:all .2s}.send-btn:hover{background:#e0c040;transform:scale(1.05);box-shadow:0 4px 12px rgba(var(--accent-gold-rgb),.3)}.send-btn:active{transform:scale(.95)}.send-btn:disabled{opacity:.35;cursor:not-allowed;transform:none;box-shadow:none}.input-footer{display:flex;align-items:center;justify-content:space-between;padding:8px 4px 0}.input-hint{font-size:.7rem;color:var(--text-muted)}.input-home{font-size:.72rem;color:var(--text-muted);text-decoration:none;transition:color .15s}.input-home:hover{color:var(--accent-gold)}.sidebar-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:40}@media(max-width:900px){.chat-topbar{display:flex}.chat-sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;transform:translate(-100%);box-shadow:4px 0 24px var(--shadow-color)}.chat-sidebar.mobile-open{transform:translate(0)}.chat-sidebar.mobile-open~.sidebar-overlay{display:block}.chat-messages{padding:24px 18px 16px}.chat-input-wrap{padding:12px 16px 16px}.msg-bubble{max-width:82%}}@media(max-width:600px){.welcome-grid{grid-template-columns:1fr}.welcome-title{font-size:1.3rem}.chat-messages{padding:20px 14px 12px;gap:22px}.chat-input-wrap{padding:10px 12px 14px}.chat-input-box{border-radius:14px}.input-hint{display:none}.ai-text,.msg-bubble{font-size:.9rem}.back-home-btn{top:10px;right:10px;padding:6px 10px;font-size:.78rem}.back-home-btn span{display:none}}.back-home-btn{position:fixed;top:16px;right:16px;z-index:50;display:flex;align-items:center;gap:6px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:10px;padding:8px 14px;color:var(--text-muted);font-size:.82rem;font-weight:600;text-decoration:none;font-family:Inter,sans-serif;transition:all .2s;backdrop-filter:blur(6px)}.back-home-btn:hover{border-color:var(--accent-gold);color:var(--accent-gold);background:rgba(var(--accent-gold-rgb),.06);transform:translateY(-1px)}