:root{--font-primary: "Poppins", "Segoe UI", sans-serif;--color-primary-blue: #b0daf8;--color-primary-blue-dark: #0056b3;--color-text-deep-blue: #265f94;--color-text-muted-blue: #6189b5;--color-bg-highlight: #e3f2fd;--color-border-highlight: #bbdefb;--color-bg-siderail: #f4f7f6;--color-bg-main: #ffffff;--color-bg-light-grey: #f9f9f9;--color-text-primary: #333;--color-text-secondary: #555;--color-text-on-dark: #ffffff;--color-border-neutral: #e0e0e0;--space-standard: 2rem;--shadow-soft: 0 2px 8px rgba(0, 0, 0, .05);--shadow-medium: 0 4px 12px rgba(0, 0, 0, .1);--border-radius: 8px}*{box-sizing:border-box;margin:0;padding:0;font-family:var(--font-primary)}body,html{height:100vh;width:100vw;overflow:hidden;background-color:var(--color-bg-main)}.chat-container{display:flex;height:100vh}.sidebar{width:280px;min-width:280px;background-color:var(--color-bg-siderail);padding:1.5rem;display:flex;flex-direction:column;box-shadow:3px 0 20px #0000000a;z-index:100;transition:min-width .3s ease-in-out,width .3s ease-in-out,padding .3s ease-in-out;overflow:hidden}.sidebar:hover{overflow-y:auto}.chat-container.sidebar-closed .sidebar{width:0;min-width:0;padding-left:0;padding-right:0;overflow:hidden}.sidebar-content-wrapper{opacity:1;transition:opacity .2s ease-in-out;width:100%}.chat-container.sidebar-closed .sidebar-content-wrapper{opacity:0}.sidebar-profile{font-size:.9rem;padding-bottom:1.5rem;margin-bottom:1.5rem;border-bottom:1px solid var(--color-border-neutral)}.sidebar-profile strong{color:var(--color-text-deep-blue)}.logout-btn{background-color:#e9ecef;border:1px solid #ced4da;border-radius:var(--border-radius);padding:.5rem 1rem;color:#495057;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;margin-top:1rem}.logout-btn:hover{background-color:#d6dbe0;border-color:#adb5bd}.chat-main{flex-grow:1;display:flex;flex-direction:column;background-color:var(--color-bg-main);overflow:hidden}.chat-main-header{display:flex;align-items:center;padding:1rem 1.5rem;height:73px;flex-shrink:0}.sidebar-toggle-btn{background:none;border:none;font-size:1.75rem;cursor:pointer;color:var(--color-text-secondary);transition:color .2s ease}.sidebar-toggle-btn:hover{color:var(--color-primary-blue)}.chat-content-area{flex-grow:1;overflow-y:auto;padding:var(--space-standard)}.chat-messages{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-standard)}.welcome-message{text-align:center;margin:auto;padding:2rem 0;color:var(--color-text-secondary)}.welcome-message h1{color:var(--color-text-deep-blue);font-size:2.2rem}.question-wrapper{align-self:flex-end;max-width:70%}.question-box{background-color:var(--color-bg-highlight);color:#265f94;padding:12px 16px;border-radius:20px;box-shadow:var(--shadow-soft);text-align:left;font-weight:500}.chat-response{width:100%;display:flex;flex-direction:column;gap:var(--space-standard)}.error-message{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb;padding:1rem;border-radius:var(--border-radius)}.table-section,.chart-section{background-color:#fdfdff;border:1px solid var(--color-border-neutral);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--shadow-soft)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.section-heading{color:var(--color-text-deep-blue);font-size:1.2rem}.export-btn{background-color:var(--color-text-deep-blue);color:var(--color-text-on-dark);border:none;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:500;transition:background-color .2s ease}.export-btn:hover{background-color:var(--color-primary-blue);color:#265f94}.table-container{overflow-x:auto}.styled-table{width:100%;border-collapse:collapse;font-size:.9rem}.styled-table thead{background-color:var(--color-text-deep-blue);color:var(--color-text-on-dark)}.styled-table th,.styled-table td{padding:12px 16px;border:1px solid var(--color-border-neutral);text-align:left}.styled-table tbody tr:nth-child(2n){background-color:var(--color-bg-light-grey)}.styled-table tbody tr:hover{background-color:var(--color-bg-highlight)}.chart-container{display:flex;justify-content:center}.chart-container img{width:100%;max-width:820px;height:auto;border-radius:var(--border-radius);box-shadow:var(--shadow-medium)}.chat-input-area{padding:1.5rem var(--space-standard);background-color:transparent;box-shadow:none;flex-shrink:0}.chat-input-form{max-width:900px;margin:0 auto;display:flex;align-items:center;gap:.5rem}.chat-input{flex-grow:1;border:1px solid var(--color-border-neutral);background:var(--color-bg-main);padding:.75rem;font-size:1rem;color:var(--color-text-primary);border-radius:var(--border-radius);transition:all .2s ease}.chat-input:focus{outline:none;border-color:var(--color-primary-blue);box-shadow:0 0 0 3px #007bff26}.send-btn{background-color:var(--color-text-deep-blue);border:none;color:var(--color-text-on-dark);width:44px;height:44px;border-radius:var(--border-radius);display:flex;align-items:center;justify-content:center;font-size:1.25rem;cursor:pointer;transition:all .2s ease;flex-shrink:0}.send-btn:hover{background-color:var(--color-primary-blue);color:#265f94;transform:translateY(-1px)}.loader{border:3px solid rgba(255,255,255,.3);border-top:3px solid #ffffff;border-radius:50%;width:22px;height:22px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.send-btn:disabled{cursor:not-allowed;background-color:var(--color-primary-blue-dark);opacity:.7}.sidebar-actions{margin-bottom:1rem}.new-chat-btn{width:100%;padding:6px;background-color:var(--color-text-deep-blue);color:#fff;border:none;border-radius:16px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s ease}.new-chat-btn:hover{background-color:var(--color-primary-blue);color:#265f94}.conversation-list{flex-grow:1;overflow-y:auto}.conversation-item{padding:.75rem 1rem;margin-bottom:.5rem;border-radius:var(--border-radius);cursor:pointer;transition:background-color .2s ease,color .2s ease;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-item:hover{background-color:#e9ecef}.conversation-item.active{background-color:var(--color-bg-highlight);color:var(--color-text-deep-blue);font-weight:600}.sidebar-footer-info{margin-top:auto;padding-top:1rem;border-top:1px solid var(--color-border-neutral)}.info-panel{background-color:var(--color-bg-highlight);border:1px solid var(--color-border-highlight);border-radius:var(--border-radius);padding:.75rem 1rem}.message-content h2{font-size:.9rem;color:var(--color-text-deep-blue);margin-bottom:.5rem}.message-content strong{color:var(--color-text-deep-blue)}.message-content ol,.message-content ul{padding-left:1.2rem;color:var(--color-text-muted-blue);font-size:.85rem;line-height:1.5}.message-content li{margin-bottom:.3rem}.powered-by{font-size:.85rem;color:var(--color-text-muted-blue);font-style:italic}.arrow{font-size:14px}.history-dropdown{margin-top:24px}.history-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;cursor:pointer;font-weight:500;border-radius:16px;color:#fff;background-color:#265f94}.history-header:hover{background-color:var(--color-primary-blue);color:#265f94}.conversation-list{margin-top:8px;display:flex;flex-direction:column;gap:1px}.conversation-item{padding:8px 12px;background-color:#e3f2fd;border-radius:16px;cursor:pointer;font-size:14px;color:#111827;transition:background-color .2s ease}.conversation-item:hover{background-color:#e5e7eb}.conversation-item.active{background-color:#c8e4f7;color:#265f94;font-weight:600}