@charset "UTF-8";:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-card: #21262d;--accent: #58a6ff;--accent-green: #3fb950;--text-primary: #e6edf3;--text-muted: #8b949e;--border: #30363d;--danger: #f85149;--warning: #d29922;--navbar-height: 64px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--transition: .2s ease;--font-sans: "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--text-primary)}h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:clamp(1.4rem,3vw,2rem)}h3{font-size:clamp(1.1rem,2.5vw,1.5rem)}p{color:var(--text-muted);line-height:1.7}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:#a8d4ff;text-decoration:underline}code,pre,kbd,samp{font-family:var(--font-mono)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid transparent;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:.875rem;font-weight:500;cursor:pointer;transition:background var(--transition),border-color var(--transition),color var(--transition),transform var(--transition);white-space:nowrap;text-decoration:none}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--accent);color:#0d1117;border-color:var(--accent)}.btn-primary:hover:not(:disabled){background:#79bafb;border-color:#79bafb;text-decoration:none}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover:not(:disabled){background:#2d333b;border-color:#484f58;text-decoration:none}.btn-danger{background:transparent;color:var(--danger);border-color:var(--danger)}.btn-danger:hover:not(:disabled){background:#f851491a;text-decoration:none}.btn-success{background:var(--accent-green);color:#0d1117;border-color:var(--accent-green)}.btn-success:hover:not(:disabled){background:#56d364;border-color:#56d364;text-decoration:none}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px}textarea,input[type=text],input[type=number],input[type=datetime-local],select{width:100%;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-mono);font-size:.875rem;padding:10px 14px;resize:vertical;transition:border-color var(--transition);outline:none;appearance:none}textarea::placeholder,input[type=text]::placeholder,input[type=number]::placeholder,input[type=datetime-local]::placeholder,select::placeholder{color:var(--text-muted)}textarea:focus,input[type=text]:focus,input[type=number]:focus,input[type=datetime-local]:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #58a6ff26}select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b949e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-muted);margin-bottom:6px;letter-spacing:.03em;text-transform:uppercase}input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer}input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}pre{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;overflow:auto;font-size:.8125rem;line-height:1.6;white-space:pre-wrap;word-break:break-all}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}*{scrollbar-width:thin;scrollbar-color:var(--border) var(--bg-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent)}.text-green{color:var(--accent-green)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.font-mono{font-family:var(--font-mono)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.page-header{margin-bottom:32px}.page-header h1{margin-bottom:8px}.page-header p{font-size:1rem;max-width:600px}.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}@media(max-width:768px){.tool-layout{grid-template-columns:1fr}}.section-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:8px}.error-message{color:var(--danger);font-size:.8125rem;font-family:var(--font-mono);padding:10px 14px;background:#f851491a;border:1px solid rgba(248,81,73,.3);border-radius:var(--radius-sm)}