:root{--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-display: "Outfit", sans-serif;--bg-app: #090a0f;--bg-sidebar: #090a0f;--bg-workspace: #f4f5f8;--bg-card: #ffffff;--border-color: rgba(255, 255, 255, .08);--border-light: rgba(0, 0, 0, .06);--soul-red: #ff011a;--soul-blue: #1a38ff;--soul-lime: #38ff01;--text-dark-primary: #111827;--text-dark-secondary: #4b5563;--text-dark-muted: #9ca3af;--text-light-primary: #f3f4f6;--text-light-secondary: #9ca3af;--text-light-muted: #4b5563;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 28px;--transition-smooth: all .25s cubic-bezier(.4, 0, .2, 1);--shadow-subtle: 0 4px 20px -2px rgba(0, 0, 0, .05);--shadow-medium: 0 10px 30px -5px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-app);color:var(--text-light-primary);font-family:var(--font-sans);overflow:hidden;height:100vh;-webkit-font-smoothing:antialiased}.app-container{display:grid;grid-template-columns:280px 1fr;height:100vh;width:100vw;background-color:var(--bg-app);padding:12px 12px 12px 0}.mobile-only{display:none!important}.desktop-only{display:flex!important}.sidebar{background-color:var(--bg-sidebar);display:flex;flex-direction:column;height:100%;padding:16px 20px;justify-content:space-between;overflow-y:auto}.sidebar-top{display:flex;flex-direction:column;gap:20px}.logo-section{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.logo-img{height:140px;object-fit:contain}.toggle-sidebar-btn{background:transparent;border:none;color:var(--text-light-secondary);cursor:pointer;padding:6px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:var(--transition-smooth)}.toggle-sidebar-btn:hover{background:#ffffff0d;color:#fff}.new-chat-btn{background:#ffffff08;border:1px solid var(--border-color);color:#fff;border-radius:var(--radius-md);padding:12px 16px;font-size:14px;font-weight:500;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:var(--transition-smooth)}.new-chat-btn:hover{background:#ffffff14}.shortcut-badge{background:#ffffff14;font-size:10px;padding:2px 6px;border-radius:4px;color:var(--text-light-secondary)}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:var(--text-light-secondary);font-size:14px;font-weight:500;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-smooth);text-decoration:none}.sidebar-nav-item:hover{background:#ffffff0a;color:#fff}.sidebar-nav-item.active{background:#ffffff0f;color:#fff}.section-label{font-size:11px;font-weight:600;color:var(--text-light-muted);text-transform:uppercase;letter-spacing:.5px;margin:18px 0 8px 16px}.recent-chats-list{display:flex;flex-direction:column;gap:4px;max-height:180px;overflow-y:auto}.recent-chat-item{padding:10px 16px;font-size:13px;color:var(--text-light-secondary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:var(--transition-smooth)}.recent-chat-item:hover{background:#ffffff08;color:#fff}.recent-chat-item.active{background:#ffffff0f;color:#fff}.sidebar-bottom{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:20px}.trial-banner{background:#ffffff08;border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px;display:flex;flex-direction:column;gap:12px}.trial-title{font-size:13px;font-weight:600;color:#fff}.trial-desc{font-size:11px;color:var(--text-light-secondary);line-height:1.4}.upgrade-btn{background-color:var(--soul-lime);color:#000;border:none;border-radius:var(--radius-md);padding:12px;font-size:13px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:var(--transition-smooth);width:100%}.upgrade-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}.sidebar-footer-links{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--border-color);padding-top:12px}.footer-link{display:flex;align-items:center;gap:12px;padding:10px 16px;color:var(--text-light-secondary);font-size:13px;font-weight:500;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-smooth)}.footer-link:hover{background:#ffffff08;color:#fff}.workspace-container{background-color:var(--bg-workspace);border-radius:var(--radius-xl);height:100%;display:flex;flex-direction:column;overflow:hidden;color:var(--text-dark-primary);box-shadow:var(--shadow-medium)}.workspace-header{height:64px;padding:0 24px;padding-top:env(safe-area-inset-top,0px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-light);background-color:#fff}.mobile-menu-trigger{background:transparent;border:none;color:var(--text-dark-secondary);cursor:pointer;padding:6px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:var(--transition-smooth)}.mobile-menu-trigger:hover{background:#0000000d}.model-dropdown-trigger{display:flex;align-items:center;gap:8px;background:transparent;border:none;font-family:var(--font-display);font-weight:700;font-size:16px;color:var(--text-dark-primary);cursor:pointer;padding:6px 12px;border-radius:var(--radius-sm);transition:var(--transition-smooth)}.model-dropdown-trigger:hover{background:#00000008}.header-right-actions{display:flex;align-items:center;gap:12px}.header-icon-btn{background:transparent;border:1px solid var(--border-light);width:38px;height:38px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-dark-secondary);cursor:pointer;transition:var(--transition-smooth)}.header-icon-btn:hover{background:#00000005;color:var(--text-dark-primary);border-color:var(--text-dark-muted)}.header-avatar{width:38px;height:38px;border-radius:50%;object-fit:cover;border:1px solid var(--border-light)}.welcome-layout{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;max-width:900px;margin:0 auto;width:100%;overflow-y:auto}.welcome-header{text-align:center;margin-bottom:32px}.welcome-title{font-family:var(--font-display);font-size:38px;font-weight:800;color:var(--text-dark-primary);letter-spacing:-.5px;margin-bottom:8px}.welcome-subtitle{font-family:var(--font-display);font-size:34px;font-weight:700;color:var(--text-dark-secondary);opacity:.8;margin-bottom:12px}.welcome-desc{font-size:14px;color:var(--text-dark-muted)}.central-input-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);width:100%;max-width:720px;box-shadow:var(--shadow-subtle);padding:16px 20px;display:flex;flex-direction:column;gap:12px;margin-bottom:40px}.central-textarea{width:100%;border:none;outline:none;resize:none;font-family:var(--font-sans);font-size:15px;color:var(--text-dark-primary);background:transparent;min-height:48px;line-height:1.5}.central-textarea::placeholder{color:var(--text-dark-muted)}.input-actions-bar{display:flex;align-items:center;justify-content:space-between}.input-left-tools{display:flex;align-items:center;gap:8px}.tool-circle-btn{background:#00000008;border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-dark-secondary);cursor:pointer;transition:var(--transition-smooth)}.tool-circle-btn:hover{background:#0000000f;color:var(--text-dark-primary)}.input-right-tools{display:flex;align-items:center;gap:8px}.send-arrow-btn{background:#000;color:#fff;border:none;width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition-smooth)}.send-arrow-btn:hover:not(:disabled){background:#222;transform:translateY(-1px)}.send-arrow-btn:disabled{opacity:.3;cursor:not-allowed}.feature-cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%;max-width:720px}.feature-item-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:20px;display:flex;flex-direction:column;gap:12px;cursor:pointer;transition:var(--transition-smooth);text-align:left}.feature-item-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-subtle);border-color:var(--text-dark-muted)}.feature-icon-wrapper{width:36px;height:36px;border-radius:var(--radius-sm);background-color:var(--soul-lime);color:#000;display:flex;align-items:center;justify-content:center}.feature-card-title{font-size:14px;font-weight:700;color:var(--text-dark-primary)}.feature-card-desc{font-size:12px;color:var(--text-dark-secondary);line-height:1.4}.chat-messages-container{flex:1;display:flex;flex-direction:column;overflow:hidden}.chat-scroller{flex:1;overflow-y:auto;padding:30px;display:flex;flex-direction:column;gap:24px}.chat-bubble-row{display:flex;gap:16px;max-width:80%;animation:slideUp .25s ease-out}.chat-bubble-row.user{align-self:flex-end;flex-direction:row-reverse}.chat-bubble-row.assistant{align-self:flex-start}.bubble-avatar{width:36px;height:36px;border-radius:50%;background:var(--bg-app);border:1px solid var(--border-light);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.bubble-text-card{padding:16px 20px;border-radius:var(--radius-lg);font-size:14px;line-height:1.6;box-shadow:var(--shadow-subtle)}.chat-bubble-row.user .bubble-text-card{background-color:#000;color:#fff;border-top-right-radius:2px}.chat-bubble-row.assistant .bubble-text-card{background-color:#fff;color:var(--text-dark-primary);border:1px solid var(--border-light);border-top-left-radius:2px}.message-meta{font-size:11px;color:var(--text-dark-muted);margin-top:6px;display:block}.chat-bubble-row.user .message-meta{text-align:right}.token-use-tag{display:inline-flex;align-items:center;gap:4px;font-size:10px;background:#0000000a;padding:2px 6px;border-radius:20px;margin-top:10px;color:var(--text-dark-secondary)}.workspace-bottom-input-bar{padding:20px 30px;background-color:#fff;border-top:1px solid var(--border-light)}.dashboard-panel{flex:1;overflow-y:auto;padding:40px;width:100%}.db-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:30px}.db-stat-card{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-subtle);position:relative;overflow:hidden}.db-stat-card:after{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--soul-lime)}.stat-header{font-size:13px;color:var(--text-dark-secondary);font-weight:500;margin-bottom:8px}.stat-number{font-family:var(--font-display);font-size:32px;font-weight:800;color:var(--text-dark-primary)}.stat-desc{font-size:11px;color:var(--text-dark-muted);margin-top:6px}.chart-card-light{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-subtle);margin-bottom:30px}.plans-comparison-light{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.plan-card-light{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-subtle);position:relative;transition:var(--transition-smooth);display:flex;flex-direction:column;gap:16px}.plan-card-light:hover{transform:translateY(-2px);border-color:var(--text-dark-muted)}.plan-card-light.current{border:2px solid var(--soul-lime);box-shadow:var(--shadow-medium)}.plan-badge-light{position:absolute;top:15px;right:15px;background:var(--soul-lime);color:#000;font-size:10px;font-weight:700;padding:4px 10px;border-radius:20px;text-transform:uppercase}.plan-title-light{font-family:var(--font-display);font-size:20px;font-weight:700}.plan-price-light{font-family:var(--font-display);font-size:36px;font-weight:800;margin:10px 0}.plan-price-light span{font-size:14px;color:var(--text-dark-secondary);font-weight:400}.plan-features-light{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--text-dark-secondary);margin-bottom:20px}.plan-features-light li{display:flex;align-items:center;gap:8px}.select-plan-btn-light{background:#000;color:#fff;border:none;border-radius:var(--radius-md);padding:12px;font-weight:600;cursor:pointer;transition:var(--transition-smooth);width:100%}.select-plan-btn-light:hover:not(:disabled){background:#222}.select-plan-btn-light:disabled{background:var(--soul-lime);color:#000;cursor:not-allowed}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.mobile-only{display:flex!important}.desktop-only{display:none!important}.app-container{grid-template-columns:1fr;padding:0}.sidebar{position:fixed;top:0;left:0;bottom:0;width:280px;z-index:999;transform:translate(-100%);transition:var(--transition-smooth);box-shadow:10px 0 30px #00000080;padding-top:env(safe-area-inset-top,0px)}.sidebar.open{transform:translate(0)}.sidebar-mobile-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;z-index:998;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease}.workspace-container{border-radius:0}.workspace-header{padding:0 16px;padding-top:env(safe-area-inset-top,0px);min-height:calc(64px + env(safe-area-inset-top,0px))}.welcome-layout{padding:24px 16px}.welcome-title{font-size:28px}.welcome-subtitle{font-size:24px}.central-input-card{padding:12px 14px;margin-bottom:24px}.feature-cards-grid{grid-template-columns:1fr;gap:12px}.chat-scroller{padding:16px}.chat-bubble-row{max-width:92%}.workspace-bottom-input-bar{padding:12px 16px}.dashboard-panel{padding:20px 16px}.db-grid-3,.plans-comparison-light{grid-template-columns:1fr;gap:16px}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}