:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app{display:flex;min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}.app-sidebar{width:320px;background:#fff;border-right:1px solid #e1e5e9;display:flex;flex-direction:column;box-shadow:2px 0 10px #0000001a;z-index:100}.sidebar-header{padding:1.5rem;border-bottom:1px solid #e1e5e9;display:flex;align-items:center;gap:.75rem}.sidebar-logo{width:40px;height:40px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.sidebar-header h2{margin:0;font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav{flex:1;padding:1rem 0;overflow-y:auto}.nav-section{margin-bottom:2rem}.nav-section-title{padding:0 1.5rem;margin-bottom:.75rem;font-size:.875rem;font-weight:600;color:#6b7280;text-transform:uppercase;letter-spacing:.05em}.nav-link{display:flex;align-items:center;gap:.75rem;padding:.75rem 1.5rem;color:#374151;text-decoration:none;transition:all .2s ease;border-radius:0 25px 25px 0;margin-right:.5rem}.nav-link:hover{background:#f3f4f6;color:#667eea}.nav-link svg{width:20px;height:20px;flex-shrink:0}.sidebar-footer{padding:1.5rem;border-top:1px solid #e1e5e9}.logout-btn{width:100%;display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background:#fee2e2;color:#dc2626;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;font-weight:500}.logout-btn:hover{background:#fecaca;color:#b91c1c}.logout-btn svg{width:18px;height:18px}.app-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.prompt-tree{padding:0}.prompt-tree-header{padding:0 1.5rem 1rem}.create-prompt-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;text-decoration:none;border-radius:8px;font-size:.875rem;font-weight:500;transition:all .2s ease;box-shadow:0 2px 4px #667eea33}.create-prompt-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.create-prompt-btn svg{width:16px;height:16px}.prompt-tree-list{padding:0 .5rem}.prompt-tree-item{margin-bottom:.25rem;border-radius:8px;overflow:hidden;transition:all .2s ease}.prompt-tree-item:hover{background:#f8fafc}.prompt-tree-item-content{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;cursor:pointer}.prompt-tree-item-icon{width:32px;height:32px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.prompt-tree-item-icon svg{width:16px;height:16px}.prompt-tree-item-info{flex:1;min-width:0}.prompt-tree-item-name{font-weight:600;color:#1f2937;font-size:.875rem;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.prompt-tree-item-preview{font-size:.75rem;color:#6b7280;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.prompt-tree-item-actions{display:flex;gap:.25rem;opacity:0;transition:opacity .2s ease}.prompt-tree-item:hover .prompt-tree-item-actions{opacity:1}.prompt-action-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:4px;background:transparent;color:#6b7280;cursor:pointer;transition:all .2s ease;text-decoration:none}.prompt-action-btn:hover{background:#e5e7eb;color:#374151}.prompt-action-btn.active{background:#dbeafe;color:#667eea}.prompt-action-btn.delete:hover{background:#fee2e2;color:#dc2626}.sidebar-loading{padding:1rem 1.5rem;color:#6b7280;font-size:.875rem}.empty-prompts{padding:2rem 1rem;text-align:center;color:#6b7280}.empty-prompts p{margin-bottom:1rem;font-size:.875rem}.create-first-prompt{color:#667eea;text-decoration:none;font-size:.875rem;font-weight:500}.create-first-prompt:hover{text-decoration:underline}.welcome-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#667eea,#764ba2);position:relative;overflow:hidden}.welcome-screen:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);animation:float 20s ease-in-out infinite}.welcome-content{position:relative;z-index:1;text-align:center;color:#fff;max-width:600px}.welcome-content h1{font-size:3rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(45deg,#fff,#e0e7ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.welcome-content p{font-size:1.2rem;opacity:.9;margin-bottom:3rem;line-height:1.6}.welcome-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-top:3rem}.stat-card{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:2rem;border:1px solid rgba(255,255,255,.2);transition:all .3s ease}.stat-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0003}.stat-number{font-size:2.5rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(45deg,#fff,#e0e7ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:.9rem;opacity:.8;text-transform:uppercase;letter-spacing:.05em;font-weight:500}@media(max-width:1024px){.app-sidebar{width:280px}.sidebar-header{padding:1rem}.sidebar-header h2{font-size:1.25rem}.welcome-content h1{font-size:2.5rem}.welcome-stats{grid-template-columns:repeat(2,1fr);gap:1.5rem}}@media(max-width:768px){.app{flex-direction:column}.app-sidebar{width:100%;height:auto;max-height:40vh;border-right:none;border-bottom:1px solid #e1e5e9;overflow-y:auto}.app-main{flex:1;min-height:60vh}.welcome-content h1{font-size:2rem}.welcome-content p{font-size:1rem}.welcome-stats{grid-template-columns:1fr;gap:1rem}.stat-card{padding:1.5rem}.stat-number{font-size:2rem}}@media(max-width:480px){.sidebar-header{padding:.75rem}.sidebar-header h2{font-size:1.125rem}.sidebar-nav{padding:.5rem 0}.nav-section-title{padding:0 1rem;font-size:.75rem}.nav-link{padding:.5rem 1rem;font-size:.875rem}.prompt-tree-header{padding:0 1rem .75rem}.create-prompt-btn{padding:.5rem .75rem;font-size:.8rem}.welcome-screen{padding:1rem}.welcome-content h1{font-size:1.75rem}.welcome-content p{font-size:.9rem;margin-bottom:2rem}}table{width:100%;border-collapse:collapse}table th,table td{border:1px solid #ddd;padding:.5rem;text-align:left}textarea{width:100%;min-height:100px}input[type=text],input[type=password],textarea{margin-bottom:1rem;padding:.5rem;border:1px solid #ccc;border-radius:4px}button{padding:.5rem 1rem;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}button:hover{background-color:#0056b3}button:disabled{background-color:#ccc;cursor:not-allowed}.login-container{display:flex;min-height:100vh;width:100vw;background:linear-gradient(135deg,#667eea,#764ba2);position:relative;overflow:hidden}.login-container:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);animation:float 20s ease-in-out infinite}@keyframes float{0%,to{transform:translate(-50%,-50%) rotate(0)}50%{transform:translate(-50%,-50%) rotate(180deg)}}.login-content{display:flex;width:100%;min-height:100vh;position:relative;z-index:1}.login-left{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem;color:#fff;background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}@media(min-width:1440px){.login-left,.login-right{padding:6rem 4rem}.login-hero{max-width:600px}.login-hero h1{font-size:4rem}.login-hero p{font-size:1.4rem}.login-card{max-width:500px;padding:4rem}}@media(min-width:1024px)and (max-width:1439px){.login-left,.login-right{padding:4rem 3rem}.login-hero{max-width:550px}.login-hero h1{font-size:3.5rem}.login-hero p{font-size:1.3rem}.login-card{max-width:450px;padding:3rem}}@media(max-width:1024px){.login-content{flex-direction:column}.login-left{padding:3rem 2rem;min-height:350px}.login-right{padding:3rem 2rem}.login-hero h1{font-size:2.8rem}.login-hero p{font-size:1.2rem}.login-features{grid-template-columns:1fr;gap:1rem}.login-card{max-width:100%;padding:2.5rem}}@media(max-width:768px){.login-container{padding:0}.login-left{padding:2rem 1rem;min-height:300px}.login-right{padding:2rem 1rem}.login-hero h1{font-size:2.2rem}.login-hero p{font-size:1.1rem}.login-card{padding:2rem;margin:1rem;border-radius:16px}.hero-logo{width:100px;height:100px}}@media(max-width:480px){.login-left,.login-right{padding:1.5rem 1rem}.login-hero h1{font-size:1.8rem}.login-hero p{font-size:1rem}.login-card{padding:1.5rem;margin:.5rem}.hero-logo{width:80px;height:80px}}.login-hero{max-width:500px;text-align:center}.hero-logo{width:120px;height:120px;margin-bottom:1.5rem;filter:drop-shadow(0 4px 8px rgba(255,255,255,.3))}.login-hero h1{font-size:3rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(45deg,#fff,#e0e7ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-hero p{font-size:1.2rem;line-height:1.6;opacity:.9;margin-bottom:2rem}.login-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-top:3rem}.feature-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:#ffffff1a;border-radius:12px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.feature-item svg{width:24px;height:24px;flex-shrink:0}.login-right{flex:1;display:flex;justify-content:center;align-items:center;padding:2rem;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.login-card{background:#fff;border-radius:20px;padding:2.5rem;box-shadow:0 25px 50px #00000026;width:100%;max-width:420px;border:1px solid rgba(255,255,255,.2)}.login-header{text-align:center;margin-bottom:2rem}.login-logo{width:80px;height:80px;margin-bottom:1rem}.login-card h2{text-align:center;margin-bottom:.5rem;color:#333;font-size:2rem;font-weight:600}.login-subtitle{color:#666;font-size:1rem;margin:0}.google-btn{width:100%;max-width:400px;background:#fff;border:2px solid #e1e5e9;border-radius:8px;padding:1rem 1.5rem;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.75rem;transition:all .2s ease;margin-bottom:1.5rem;font-weight:500;color:#333}.google-btn:hover:not(:disabled){background:#f8f9fa;border-color:#dadce0;transform:translateY(-1px);box-shadow:0 4px 12px #0000001a}.google-icon{width:24px;height:24px}.divider{text-align:center;margin:1.5rem 0;position:relative;color:#666}.divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:#ddd}.divider span{background:#fff;padding:0 1rem;position:relative;z-index:1}.login-form{display:flex;flex-direction:column;gap:1.5rem;width:100%;max-width:400px}.form-group{display:flex;flex-direction:column;width:100%}.form-group label{margin-bottom:.75rem;font-weight:500;color:#333;font-size:1rem}.form-group input{padding:1rem;border:2px solid #e1e5e9;border-radius:8px;font-size:1rem;transition:border-color .2s ease,box-shadow .2s ease;width:100%}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.error-message{background:#fee;color:#c33;padding:.75rem;border-radius:6px;border:1px solid #fcc;font-size:.9rem}.submit-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;padding:1rem 2rem;font-size:1.1rem;cursor:pointer;transition:all .2s ease;margin-top:.5rem;font-weight:600;width:100%;max-width:400px}.submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #667eea4d}.toggle-mode{text-align:center;margin-top:1.5rem}.toggle-btn{background:none;border:none;color:#667eea;cursor:pointer;text-decoration:underline;font-size:.9rem}.toggle-btn:hover{color:#5a67d8}