:root{--bg-main: #f3f4f6;--bg-card: #ffffff;--text-main: #1f2937;--text-muted: gray;--border-color: #e5e7eb;--bg-input: #ffffff;--bg-entry: #f9fafb;--bg-ai: #eff6ff;--border-ai: #bfdbfe}.dark-theme{--bg-main: #111827;--bg-card: #1f2937;--text-main: #f3f4f6;--text-muted: #9ca3af;--border-color: #374151;--bg-input: #374151;--bg-entry: #374151;--bg-ai: #1e3a8a;--border-ai: #1e40af}body{font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-main);color:var(--text-main);margin:0;padding:20px;display:flex;justify-content:center;transition:background-color .3s ease,color .3s ease}.container{background-color:var(--bg-card);width:100%;max-width:600px;padding:30px;border-radius:16px;box-shadow:0 10px 25px #0000000d;transition:background-color .3s ease}h1,h2,h3{color:var(--text-main)}h2{border-bottom:2px solid var(--border-color);padding-bottom:10px}textarea,input[type=text],input[type=email],input[type=password]{width:100%;box-sizing:border-box;padding:12px 15px;border:2px solid var(--border-color);border-radius:10px;font-size:1rem;outline:none;background-color:var(--bg-input);color:var(--text-main);transition:border-color .3s ease,background-color .3s ease,color .3s ease}textarea:focus,input:focus{border-color:#3b82f6}textarea{resize:vertical;margin-bottom:15px}#searchInput{margin-bottom:20px}button{width:100%;background-color:#3b82f6;color:#fff;border:none;padding:12px;border-radius:10px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:background-color .2s ease,transform .1s ease}button:hover{background-color:#2563eb}button:active{transform:scale(.98)}button:disabled{background-color:#9ca3af;cursor:not-allowed}#entriesList div{background-color:var(--bg-entry)!important;border:1px solid var(--border-color)!important;padding:15px!important;margin-bottom:15px!important;border-radius:12px!important;color:var(--text-main);transition:background-color .3s ease,border-color .3s ease}#aiResponseArea{background-color:var(--bg-ai)!important;border:1px solid var(--border-ai)!important;color:var(--text-main)}.delete-btn{background:none;border:none;color:#ef4444;font-size:1.2rem;width:auto;padding:5px 10px;margin:0;border-radius:8px;cursor:pointer}.delete-btn:hover{background-color:#fee2e2;color:#dc2626}