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input{padding:.75rem;border:1px solid var(--border-color);border-radius:var(--radius);font-size:1rem;width:100%}.visual-box-container{flex:1;display:flex;justify-content:center;align-items:center;min-height:200px;background:#fff;border-radius:var(--radius);padding:1rem;border:1px dotted var(--border-color)}.visual-box{background-color:var(--primary-color);color:#fff;display:flex;justify-content:center;align-items:center;font-size:.9rem;font-weight:600;max-width:100%;max-height:180px;min-width:50px;min-height:50px;transition:all .3s ease;box-shadow:var(--shadow-md)}.result-large{margin-top:auto;padding:1.5rem;background:#fff;border-radius:var(--radius);border:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.result-label{font-weight:600;color:var(--text-muted)}.result-value{font-size:1.5rem;font-weight:800;color:var(--primary-color)}.tool-container.html-encoder,.tool-container.url-encoder{width:100%}.controls-bar{display:flex;justify-content:center;margin-bottom:1.5rem}.mode-toggle{display:inline-flex;background:var(--sidebar-bg);padding:.25rem;border-radius:var(--radius);border:1px solid var(--border-color)}.mode-toggle button{padding:.5rem 1.5rem;border-radius:calc(var(--radius) - 2px);border:none;font-weight:600;cursor:pointer;background:transparent;color:var(--text-muted);transition:all .2s}.mode-toggle button.active{background:#fff;color:var(--primary-color);box-shadow:var(--shadow-sm)}.split-view{display:grid;grid-template-columns:1fr 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