[data-theme=dark]{--primary-400:#fbbf24;--primary-500:#f59e0b;--primary-600:#d97706;--primary-700:#b45309;--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-surface:#16213e;--bg-elevated:#ffffff0a;--bg-glass:#ffffff0f;--text-primary:beige;--text-secondary:#9ca3af;--text-muted:#6b7280;--text-heading:#fbbf24;--accent-green:#10b981;--accent-red:#ef4444;--accent-blue:#3b82f6;--accent-teal:#14b8a6;--accent-purple:#8b5cf6;--border-subtle:#ffffff14;--border-hover:#f59e0b4d;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 20px #f59e0b26;--user-msg-bg:#3b82f614;--user-msg-border:#3b82f626;--code-bg:#ffffff14;--sidebar-bg:#12122a}[data-theme=light]{--primary-400:#d97706;--primary-500:#b45309;--primary-600:#92400e;--primary-700:#78350f;--bg-primary:#f9fafb;--bg-secondary:#fff;--bg-surface:#f3f4f6;--bg-elevated:#00000005;--bg-glass:#0000000a;--text-primary:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;--text-heading:#92400e;--accent-green:#059669;--accent-red:#dc2626;--accent-blue:#2563eb;--accent-teal:#0d9488;--accent-purple:#7c3aed;--border-subtle:#00000014;--border-hover:#b453094d;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 32px #0000001f;--shadow-glow:0 0 20px #b453091a;--user-msg-bg:#2563eb0f;--user-msg-border:#2563eb1f;--code-bg:#0000000d;--sidebar-bg:#fff}:root{--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--sidebar-width:280px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;transition:background var(--transition-normal), color var(--transition-normal);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}#app{height:100vh;display:flex;position:relative}.app-main{flex-direction:column;flex:1;width:100%;min-width:0;display:flex}.app-content{flex-direction:column;flex:1;width:100%;min-width:0;max-width:900px;margin:0 auto;display:flex;overflow:hidden}.history-sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid var(--border-subtle);z-index:100;height:100vh;transition:transform var(--transition-slow);box-shadow:var(--shadow-lg);flex-direction:column;display:flex;position:fixed;top:0;left:0;transform:translate(-100%)}.history-sidebar.open{transform:translate(0)}.sidebar-overlay{z-index:99;opacity:0;pointer-events:none;transition:opacity var(--transition-normal);background:#00000080;position:fixed;inset:0}.sidebar-overlay.active{opacity:1;pointer-events:auto}.sidebar-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:16px 16px 12px;display:flex}.sidebar-header h2{color:var(--text-heading);font-family:DM Serif Display,serif;font-size:1.15rem;font-weight:400}.sidebar-list{flex:1;padding:8px;overflow-y:auto}.sidebar-empty{color:var(--text-muted);text-align:center;padding:24px 16px;font-size:.85rem}.history-item{border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast);border:1px solid #0000;flex-direction:column;gap:4px;padding:10px 12px;display:flex}.history-item:hover{background:var(--bg-elevated);border-color:var(--border-subtle)}.history-item-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;font-weight:600;overflow:hidden}.history-item-date{color:var(--text-muted);font-size:.72rem}.btn-clear-history{border:1px solid var(--accent-red);border-radius:var(--radius-sm);color:var(--accent-red);cursor:pointer;transition:all var(--transition-fast);background:0 0;margin:8px 12px 12px;padding:8px 16px;font-family:inherit;font-size:.8rem;font-weight:500}.btn-clear-history:hover{background:#ef444414}.header{border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:10;transition:background var(--transition-normal);justify-content:space-between;align-items:center;padding:12px 20px;display:flex}.header-left,.header-brand{align-items:center;gap:10px;display:flex}.header-brand h1{background:linear-gradient(135deg, var(--primary-400), var(--primary-600));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-family:DM Serif Display,serif;font-size:1.25rem;font-weight:400}.logo{align-items:center;display:flex}.header-actions{align-items:center;gap:6px;display:flex}.btn-icon{border:1px solid var(--border-subtle);border-radius:var(--radius-sm);background:var(--bg-elevated);width:36px;height:36px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);justify-content:center;align-items:center;display:flex}.btn-icon:hover{background:var(--bg-glass);border-color:var(--border-hover);color:var(--primary-500)}[data-theme=dark] .icon-sun{display:block}[data-theme=dark] .icon-moon,[data-theme=light] .icon-sun{display:none}[data-theme=light] .icon-moon{display:block}.chat-container{scroll-behavior:smooth;flex:1;padding:20px;overflow-y:auto}.chat-container::-webkit-scrollbar{width:6px}.chat-container::-webkit-scrollbar-track{background:0 0}.chat-container::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}.welcome{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:60px 20px;animation:.6s fadeIn;display:flex}.welcome-icon{margin-bottom:20px}.welcome h2{background:linear-gradient(135deg, var(--primary-400), var(--primary-600));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-family:DM Serif Display,serif;font-size:1.6rem;font-weight:400}.welcome p{color:var(--text-secondary);max-width:440px;margin-bottom:28px;font-size:.95rem}.welcome-suggestions{flex-wrap:wrap;justify-content:center;gap:8px;max-width:500px;display:flex}.suggestion-chip{border:1px solid var(--border-subtle);border-radius:var(--radius-xl);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;padding:8px 16px;font-family:inherit;font-size:.85rem}.suggestion-chip:hover{background:var(--bg-glass);border-color:var(--border-hover);color:var(--primary-500);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.messages{flex-direction:column;gap:16px;display:flex}.message{gap:12px;animation:.3s slideUp;display:flex}.message-avatar{border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;margin-top:2px;font-size:.75rem;font-weight:700;display:flex}.message-user .message-avatar{background:linear-gradient(135deg, var(--accent-blue), var(--accent-purple));color:#fff}.message-agent .message-avatar{background:linear-gradient(135deg, var(--primary-500), var(--primary-700));color:var(--bg-primary)}.message-body{flex:1;min-width:0}.message-agent-name{color:var(--primary-500);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.75rem;font-weight:600}.message-content{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);word-wrap:break-word;overflow-wrap:break-word;padding:14px 16px;font-size:.9rem;line-height:1.7}.message-user .message-content{background:var(--user-msg-bg);border-color:var(--user-msg-border)}.message-content h1,.message-content h2,.message-content h3,.message-content h4{color:var(--text-heading);margin:16px 0 8px;font-family:DM Serif Display,serif;font-weight:400}.message-content h1{font-size:1.3rem}.message-content h2{font-size:1.15rem}.message-content h3{font-size:1.02rem}.message-content p{margin-bottom:10px}.message-content ul,.message-content ol{margin-bottom:10px;padding-left:20px}.message-content li{margin-bottom:4px}.message-content code{background:var(--code-bg);color:var(--primary-400);border-radius:4px;padding:2px 6px;font-size:.85em}.message-content pre{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);margin:10px 0;padding:12px 16px;overflow-x:auto}.message-content pre code{color:var(--text-primary);background:0 0;padding:0}.message-content table{border-collapse:collapse;width:100%;margin:10px 0;font-size:.85rem}.message-content th{background:var(--bg-secondary);color:var(--text-heading);text-align:left;border-bottom:2px solid var(--border-subtle);padding:8px 12px;font-weight:600}.message-content td{border-bottom:1px solid var(--border-subtle);padding:8px 12px}.message-content strong{color:var(--primary-400)}.plan-actions{gap:8px;margin-top:12px;display:flex}.btn-approve,.btn-modify{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);border:none;padding:8px 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var(--primary-600);border-radius:var(--radius-lg);box-shadow:var(--shadow-glow);margin:12px 0;overflow:hidden}.report-header{border-bottom:1px solid var(--border-subtle);background:#f59e0b14;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.report-header h3{color:var(--text-heading);font-family:DM Serif Display,serif;font-size:.95rem;font-weight:400}.btn-download{border:1px solid var(--primary-600);border-radius:var(--radius-sm);color:var(--primary-500);cursor:pointer;transition:all var(--transition-fast);background:0 0;padding:6px 14px;font-family:inherit;font-size:.8rem;font-weight:500}.btn-download:hover{background:#f59e0b1a}.report-body{padding:20px}.input-area{border-top:1px solid var(--border-subtle);background:var(--bg-secondary);transition:background var(--transition-normal);padding:12px 20px 16px}.input-wrapper{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:border-color var(--transition-fast);align-items:flex-end;gap:8px;padding:4px 4px 4px 16px;display:flex}.input-wrapper:focus-within{border-color:var(--border-hover);box-shadow:var(--shadow-glow)}textarea{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;max-height:120px;padding:8px 0;font-family:inherit;font-size:.9rem;line-height:1.5}textarea::placeholder{color:var(--text-muted)}.send-btn{border-radius:var(--radius-sm);background:linear-gradient(135deg, var(--primary-500), var(--primary-700));width:36px;height:36px;color:var(--bg-primary);cursor:pointer;transition:all var(--transition-fast);border:none;flex-shrink:0;justify-content:center;align-items:center;display:flex}.send-btn:hover{box-shadow:var(--shadow-glow);transform:scale(1.05)}.send-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.disclaimer{text-align:center;color:var(--text-muted);margin-top:8px;font-size:.7rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@media (width<=768px){.app-main{max-width:100%}.chat-container{padding:16px}.welcome h2{font-size:1.35rem}.welcome p{font-size:.9rem}}@media (width<=640px){.chat-container{padding:12px}.welcome-suggestions{flex-direction:column;align-items:center}.header{padding:10px 14px}.header-brand h1{font-size:1.1rem}.message{gap:8px}.message-avatar{width:28px;height:28px;font-size:.65rem}.message-content{padding:10px 12px;font-size:.85rem}.message-content h1{font-size:1.15rem}.message-content h2{font-size:1.05rem}.message-content h3{font-size:.95rem}.message-content table{font-size:.78rem}.message-content th,.message-content td{padding:6px 8px}.input-area{padding:8px 12px 12px}.report-body{padding:14px}}@media (width<=380px){.header-brand h1{font-size:1rem}.welcome h2{font-size:1.2rem}.suggestion-chip{padding:6px 12px;font-size:.78rem}}.login-screen{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{text-align:center;background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);flex-direction:column;align-items:center;width:100%;max-width:400px;padding:48px 40px;animation:.5s fadeIn;display:flex}.login-logo{margin-bottom:20px}.login-title{background:linear-gradient(135deg, var(--primary-400), var(--primary-600));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:6px;font-family:DM Serif Display,serif;font-size:1.8rem;font-weight:400}.login-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:.9rem}#google-signin-btn{margin-bottom:20px}.login-disclaimer{color:var(--text-muted);font-size:.78rem}.login-error{color:var(--accent-red);margin-top:12px;font-size:.85rem}.user-info{align-items:center;gap:8px;display:flex}.user-avatar{border:2px solid var(--border-subtle);border-radius:50%;width:28px;height:28px}.user-name{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;max-width:120px;font-size:.82rem;font-weight:500;overflow:hidden}@media (width<=640px){.user-name{display:none}.login-card{padding:36px 24px}}