:root,[data-theme=dark]{--color-background: #0a0a0f;--color-surface: #141419;--color-surface-hover: #1e1e26;--color-surface-elevated: #24242e;--color-primary: #f97066;--color-primary-hover: #ef5350;--color-accent: #8b5cf6;--color-accent-hover: #7c3aed;--color-text-main: #fafafa;--color-text-secondary: #a1a1aa;--color-border: #27272a;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--gradient-primary: linear-gradient(135deg, #f97066 0%, #8b5cf6 100%);--gradient-subtle: linear-gradient(135deg, rgba(249, 112, 102, .1) 0%, rgba(139, 92, 246, .1) 100%);--font-heading: "Sora", system-ui, -apple-system, sans-serif;--font-body: "DM Sans", system-ui, -apple-system, sans-serif;--font-family: var(--font-body);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .5);--shadow-glow: 0 0 30px rgba(249, 112, 102, .15)}[data-theme=light]{--color-background: #fafaf9;--color-surface: #ffffff;--color-surface-hover: #f5f5f4;--color-surface-elevated: #ffffff;--color-primary: #ea580c;--color-primary-hover: #c2410c;--color-accent: #7c3aed;--color-accent-hover: #6d28d9;--color-text-main: #18181b;--color-text-secondary: #52525b;--color-border: #e4e4e7;--color-success: #16a34a;--color-warning: #d97706;--color-error: #dc2626;--gradient-primary: linear-gradient(135deg, #ea580c 0%, #7c3aed 100%);--gradient-subtle: linear-gradient(135deg, rgba(234, 88, 12, .05) 0%, rgba(124, 58, 237, .05) 100%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .12);--shadow-glow: 0 0 30px rgba(234, 88, 12, .1)}[data-theme=purple]{--color-background: #0f0f1a;--color-surface: 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var(--spacing-md);border-radius:var(--radius-md);font-weight:500;font-size:.875rem;cursor:pointer;transition:all var(--transition-fast);border:none;font-family:inherit}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--color-surface);color:var(--color-text-main);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-surface-hover)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{background:var(--color-surface);color:var(--color-text-main)}.btn-gradient{background:var(--gradient-primary);color:#fff}.btn-gradient:hover{box-shadow:var(--shadow-glow)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-md);transition:all var(--transition-fast)}.card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--color-primary)}.card-elevated{background:var(--color-surface-elevated);box-shadow:var(--shadow-md)}.input{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-main);font-size:1rem;font-family:inherit;transition:border-color var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary)}.input-ghost{background:transparent;border:none;padding:0}.input-ghost:focus{outline:none}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 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var(--color-border)}.user-dropdown-name{font-weight:700;color:var(--color-text-main)}.user-dropdown-email{font-size:.8rem;color:var(--color-text-secondary)}.user-dropdown-item{display:flex;align-items:center;gap:var(--spacing-sm);width:100%;padding:var(--spacing-sm) var(--spacing-md);background:none;border:none;cursor:pointer;color:var(--color-text-secondary);text-align:left;transition:background-color var(--transition-fast)}.user-dropdown-item:hover{background-color:var(--color-surface-hover);color:var(--color-text-main)}.home-container{max-width:800px;margin:0 auto}.hero-section{text-align:center;margin-bottom:var(--spacing-xl)}.hero-title{font-size:2.75rem;font-weight:700;margin-bottom:var(--spacing-md);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{color:var(--color-text-secondary);font-size:1.25rem}.prompt-input-container{background-color:var(--color-surface);padding:var(--spacing-md);border-radius:var(--radius-lg);margin-bottom:var(--spacing-xl);border:1px solid 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var(--transition-normal);box-shadow:var(--shadow-lg)}.sidebar.open{left:0}.sidebar-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;opacity:0;visibility:hidden;transition:opacity var(--transition-normal),visibility var(--transition-normal)}.sidebar-overlay.visible{opacity:1;visibility:visible}.main-content{margin-left:0!important}.header-search{display:none!important}.mobile-menu-button{display:flex!important}.llm-selection{flex-wrap:wrap;gap:var(--spacing-xs)!important}.llm-selection label{font-size:.75rem!important;padding:4px 8px!important}h1{font-size:1.75rem!important}h2{font-size:1.25rem!important}main{padding:var(--spacing-md)!important}}@media(min-width:769px){.mobile-menu-button,.sidebar-overlay{display:none!important}.sidebar.collapsed .sidebar-container{width:72px;padding:var(--spacing-sm)}.sidebar.collapsed .sidebar-label{display:none}.sidebar.collapsed .sidebar-nav-item,.sidebar.collapsed .sidebar-footer-btn{justify-content:center}.sidebar.collapsed .sidebar-header{flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-md)}.sidebar.collapsed .sidebar-title{justify-content:center}.sidebar.collapsed{overflow:visible}}@media(max-width:640px){.prompt-grid{grid-template-columns:1fr}.prompt-card{padding:var(--spacing-md)}.modal-content{width:100%!important;height:100%!important;max-height:100vh!important;border-radius:0!important;margin:0}.modal-header{flex-direction:column;gap:var(--spacing-md)}.modal-actions{flex-wrap:wrap;justify-content:flex-start}.btn{min-height:44px;padding:var(--spacing-sm) var(--spacing-md)}input,select,textarea{min-height:44px;font-size:16px!important}}@media(min-width:641px)and (max-width:1024px){.prompt-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1280px){.container-max{max-width:1200px;margin:0 auto}}@media(hover:none){button:active,a:active{opacity:.8}}@media print{.sidebar,.header,.no-print{display:none!important}.main-content{margin-left:0!important;padding:0!important}body{background:#fff;color:#000}}.prompt-card-header{display:flex;justify_content:space-between;align-items:flex-start;gap:var(--spacing-md)}.prompt-card-actions{display:flex;align-items:center;gap:var(--spacing-sm);opacity:0;transition:opacity .2s ease}.prompt-card-item:hover .prompt-card-actions{opacity:1}.icon-btn.delete-btn{color:var(--color-text-secondary);padding:4px;border-radius:4px;transition:all .2s;background:transparent;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}.icon-btn.delete-btn:hover{background-color:#dc26261a;color:#ef4444}.prompt-card-meta{display:flex;align-items:center;gap:var(--spacing-md);color:var(--color-text-secondary);font-size:.875rem}.meta-icon{display:flex;align-items:center;gap:4px}.prompt-status-badge{display:flex;align-items:center;gap:4px;font-size:.75rem;padding:2px 8px;border-radius:12px;background-color:var(--color-background-alt);color:var(--color-primary)}.prompt-card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:var(--spacing-md);padding-top:var(--spacing-sm);border-top:1px solid var(--color-border)}.prompt-card-stats{display:flex;gap:var(--spacing-md);font-size:.875rem;color:var(--color-text-secondary)}.markdown-content{font-size:.95rem;line-height:1.7}.markdown-content h1,.markdown-content h2,.markdown-content h3,.markdown-content h4,.markdown-content h5,.markdown-content h6{margin-top:1.5em;margin-bottom:.5em;font-weight:600;color:var(--color-text-main)}.markdown-content h1{font-size:1.5rem}.markdown-content h2{font-size:1.3rem}.markdown-content h3{font-size:1.15rem}.markdown-content h4{font-size:1rem}.markdown-content p{margin:.75em 0}.markdown-content ul,.markdown-content ol{margin:.75em 0;padding-left:1.5em}.markdown-content li{margin:.25em 0}.markdown-content 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a{color:var(--color-primary);text-decoration:none}.markdown-content a:hover{text-decoration:underline}.markdown-content hr{border:none;border-top:1px solid var(--color-border);margin:1.5em 0}.markdown-content img{max-width:100%;height:auto;border-radius:var(--radius-md)}.prompt-detail-view{display:flex;flex-direction:column;height:100%}.prompt-detail-header{padding:var(--spacing-lg);border-bottom:1px solid var(--color-border);flex-shrink:0}.prompt-detail-content{padding:var(--spacing-lg);flex:1}.prompt-detail-close-btn{background:var(--color-surface-hover);border:none;color:var(--color-text-secondary);cursor:pointer;padding:6px 10px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);transition:all .2s;font-size:1.25rem;line-height:1;flex-shrink:0}.prompt-detail-close-btn:hover{background:var(--color-surface);color:var(--color-text-main)}.prompt-detail-page{max-width:900px;margin:0 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h2{margin:0;color:var(--color-text-main);font-size:1.25rem}a.history-item{text-decoration:none;color:var(--color-text-secondary)}a.history-item:hover{background-color:var(--color-surface);color:var(--color-text-main)}.collapsed-history-container{position:relative;display:flex;justify-content:center;padding:var(--spacing-sm) 0}.collapsed-history-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.collapsed-history-container:hover .collapsed-history-icon{background-color:var(--color-surface);color:var(--color-text-main)}.collapsed-history-dropdown{position:absolute;left:100%;top:0;z-index:9999;padding-left:8px}.collapsed-history-dropdown-inner{min-width:280px;max-width:350px;max-height:400px;overflow-y:auto;background-color:var(--color-surface-elevated, var(--color-surface));border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:0 8px 32px #0006}.collapsed-history-dropdown.visible{animation:slideIn .15s ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.collapsed-history-header{padding:var(--spacing-sm) var(--spacing-md);font-size:.75rem;font-weight:600;text-transform:uppercase;color:var(--color-text-secondary);background-color:#0003;border-bottom:1px solid var(--color-border)}.collapsed-history-empty{padding:var(--spacing-md);text-align:center;color:var(--color-text-secondary);font-size:.85rem}.collapsed-history-item{display:block;padding:var(--spacing-sm) var(--spacing-md);color:var(--color-text-secondary);text-decoration:none;font-size:.875rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-bottom:1px solid var(--color-border);transition:all var(--transition-fast)}.collapsed-history-item:last-of-type{border-bottom:none}.collapsed-history-item:hover{background-color:var(--color-surface-hover);color:var(--color-text-main)}.collapsed-history-view-all{display:block;padding:var(--spacing-sm) var(--spacing-md);text-align:center;color:var(--color-primary);text-decoration:none;font-size:.8rem;border-top:1px solid var(--color-border);transition:all var(--transition-fast)}.collapsed-history-view-all:hover{background-color:var(--color-surface-hover)}