body{font-family:"Be Vietnam Pro","Segoe UI",Tahoma,Geneva,Verdana,sans-serif;font-size:14px;color:#1e2a3b;margin:0;padding:20px;background:linear-gradient(130deg, #f3f7ff 0%, #fef9ff 100%);min-height:100vh}.container{max-width:1200px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:0 18px 45px rgba(33,60,115,.08);overflow:hidden}.header{background:linear-gradient(140deg, #3b82f6, #6366f1);color:#fff;padding:32px 34px}.header h1{margin:0 0 10px;font-size:28px;font-weight:700}.header .subtitle{margin:0;font-size:14px;opacity:.92}.tools-tabs{padding:26px 28px}.tools-tabs .tab-list{display:flex;gap:12px;border-bottom:1px solid #e4ecfb;margin-bottom:22px;flex-wrap:wrap}.tools-tabs .tab-list .tab-button{padding:11px 20px;border:none;border-radius:10px 10px 0 0;background:#eff4ff;color:#3f4c64;font-weight:600;cursor:pointer;transition:all .25s ease}.tools-tabs .tab-list .tab-button.active{background:#3b82f6;color:#fff;box-shadow:0 10px 24px rgba(59,130,246,.25)}.tools-tabs .tab-list .tab-button:hover:not(.active){background:#dfe9ff}.tools-tabs .tab-content .tab-panel{display:none}.tools-tabs .tab-content .tab-panel.active{display:block;animation:fadeIn .25s ease}@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.tool-card{border:1px solid #e6ecfb;border-radius:14px;background:#fbfdff;box-shadow:0 12px 30px rgba(19,43,89,.06);display:flex;flex-direction:column;margin-bottom:22px}.tool-card .tool-header{padding:22px 24px 16px;border-bottom:1px solid #e6ebf5}.tool-card .tool-header h2{margin:0 0 8px;font-size:19px;color:#223756}.tool-card .tool-header p{margin:0;font-size:13px;color:#54627a;line-height:1.6}.tool-card .tool-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:16px}.tool-card .tool-body label{font-weight:600;font-size:13px;color:#1f3049}.tool-card .tool-body textarea,.tool-card .tool-body input[type=text],.tool-card .tool-body input[type=number]{width:100%;border-radius:10px;border:1px solid #cfdbf4;padding:13px 15px;font-size:13px;font-family:"JetBrains Mono","Monaco","Menlo",monospace;background:#f8fbff;color:#1b2639;transition:border-color .3s ease,box-shadow .3s ease}.tool-card .tool-body textarea:focus,.tool-card .tool-body input[type=text]:focus,.tool-card .tool-body input[type=number]:focus{border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.18);outline:none}.tool-card .tool-body textarea{min-height:150px;resize:vertical}.tool-card .tool-body .button-group{display:flex;flex-wrap:wrap;gap:10px}.tool-card .tool-body .button-group .btn{padding:10px 18px;border-radius:8px;border:none;font-size:13px;font-weight:600;cursor:pointer;transition:all .25s ease}.tool-card .tool-body .button-group .btn.btn-primary{background:#6366f1;color:#fff}.tool-card .tool-body .button-group .btn.btn-primary:hover{background:#4f46e5}.tool-card .tool-body .button-group .btn.btn-success{background:#22c55e;color:#fff}.tool-card .tool-body .button-group .btn.btn-success:hover{background:#16a34a}.tool-card .tool-body .button-group .btn.btn-info{background:#14b8a6;color:#fff}.tool-card .tool-body .button-group .btn.btn-info:hover{background:#0f9b8c}.tool-card .tool-body .button-group .btn.btn-secondary{background:#94a3b8;color:#fff}.tool-card .tool-body .button-group .btn.btn-secondary:hover{background:#64748b}.tool-card .tool-body .options-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));gap:10px;background:#eef4ff;border:1px solid #d6e3ff;border-radius:12px;padding:14px 16px}.tool-card .tool-body .options-grid.compact{grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));background:#f4f7ff}.tool-card .tool-body .options-grid label{font-weight:500;font-size:13px;display:flex;align-items:center;gap:8px}.tool-card .tool-body .options-grid label input[type=checkbox]{width:16px;height:16px}.tool-card .tool-body .result-block{background:#0f1729;color:#e9f1ff;border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:12px}.tool-card .tool-body .result-block .result-header{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:600;color:#60a5fa}.tool-card .tool-body .result-block .result-header .btn-copy{background:#3b82f6;color:#fff;border:none;border-radius:6px;padding:6px 12px;font-size:11px;cursor:pointer;transition:background .2s ease}.tool-card .tool-body .result-block .result-header .btn-copy:hover{background:#2563eb}.tool-card .tool-body .result-block pre{margin:0;white-space:pre-wrap;word-break:break-word;font-family:"JetBrains Mono",monospace;font-size:16px;line-height:1.7}.tool-card .tool-body .status-message{font-size:13px;font-weight:500;min-height:20px}.tool-card .tool-body .meta-info{font-size:12px;color:#4f6285;background:#f0f6ff;border:1px dashed #c8dcff;border-radius:10px;padding:10px 12px}.tool-card .tool-body .code-area{min-height:180px;background:#0f1729;color:#e2ecff;border-radius:12px;border:1px solid #23334f;padding:14px 16px;font-size:13px;line-height:1.6;resize:vertical}.tool-card .tool-body .drop-zone{border:2px dashed #9ab5ff;background:#f5f8ff;border-radius:14px;padding:24px;text-align:center;transition:border-color .25s ease,background .25s ease}.tool-card .tool-body .drop-zone.active{border-color:#3b82f6;background:#e0e9ff}.tool-card .tool-body .drop-zone p{margin:0 0 12px;color:#415272}.tool-card .tool-body .drop-zone .file-info{margin-top:12px;font-size:12px;color:#526487}.tool-card .tool-body .download-options{display:grid;grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));gap:12px;background:#f3f6ff;border:1px solid #d6e2ff;border-radius:12px;padding:14px 16px}.tool-card .tool-body .download-options input[type=text]{font-family:"Be Vietnam Pro",sans-serif}.file-tools-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(320px, 1fr));gap:22px}.notes-section{margin:10px 28px 30px;padding:22px;background:#f0f7ff;border:1px solid #d4e3ff;border-radius:14px}.notes-section h3{margin-top:0;margin-bottom:12px;font-size:16px;color:#243659}.notes-section ul{margin:0;padding-left:20px}.notes-section ul li{padding:6px 0;color:#4a5d7c}.content-website{margin:24px 28px 34px;border-top:1px solid #e2ebfa;padding-top:18px}.content-website .content-wrapper{max-height:0;overflow:hidden;transition:max-height .35s ease}.content-website .content-wrapper.collapsed{max-height:0}.content-website .content-wrapper.expanded{max-height:600px}.content-website .toggle-btn{margin-top:12px}.content-website .toggle-btn button{background:#3b82f6;color:#fff;border:none;border-radius:8px;padding:11px 16px;cursor:pointer;font-size:13px;font-weight:600;transition:background .2s ease}.content-website .toggle-btn button:hover{background:#2563eb}.content-website .toggle-btn button .icon{margin-left:6px}.status-success{color:#16a34a}.status-error{color:#ef4444}.status-warning{color:#f59e0b}@media(max-width: 768px){body{padding:12px}.tools-tabs{padding:18px}.tools-tabs .tab-list .tab-button{flex:1 1 auto;text-align:center}.file-tools-grid{grid-template-columns:1fr}}