@import"https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap";:root{--toastify-color-light: #fff;--toastify-color-dark: #121212;--toastify-color-info: #3498db;--toastify-color-success: #07bc0c;--toastify-color-warning: #f1c40f;--toastify-color-error: hsl(6, 78%, 57%);--toastify-color-transparent: rgba(255, 255, 255, .7);--toastify-icon-color-info: var(--toastify-color-info);--toastify-icon-color-success: var(--toastify-color-success);--toastify-icon-color-warning: var(--toastify-color-warning);--toastify-icon-color-error: var(--toastify-color-error);--toastify-container-width: fit-content;--toastify-toast-width: 320px;--toastify-toast-offset: 16px;--toastify-toast-top: max(var(--toastify-toast-offset), env(safe-area-inset-top));--toastify-toast-right: max(var(--toastify-toast-offset), env(safe-area-inset-right));--toastify-toast-left: max(var(--toastify-toast-offset), 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var(--space-md);border-radius:var(--radius-md);transition:var(--transition-fast)}input:focus,textarea:focus,select:focus{border-color:var(--border-accent);outline:none;box-shadow:0 0 0 3px var(--accent-light)}body{background-color:var(--bg-color);color:var(--text-color);font-family:Inter,system-ui,sans-serif;transition:all .3s ease;margin:0;padding:0}button,input,textarea,select{font-family:inherit;font-size:1rem;border-radius:8px;transition:all .3s ease;outline:none}button{background-color:var(--btn-bg);color:var(--btn-text);border:none;padding:10px 20px;cursor:pointer;min-width:120px;border-radius:6px;font-weight:500}button:hover:not(:disabled){background-color:var(--btn-hover-bg)}button:disabled{background-color:#6e7681;cursor:not-allowed}input,textarea,select{background-color:var(--input-bg);color:var(--input-text);border:1px solid var(--input-border);padding:10px 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label{font-size:.9rem;color:var(--text-secondary);font-weight:500}.speed-slider{flex:1;height:6px;border-radius:3px;background:var(--border-color);outline:none;-webkit-appearance:none}.speed-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent-color);cursor:pointer;border:2px solid white;box-shadow:var(--shadow)}.speed-control span{font-size:.8rem;color:var(--text-muted);min-width:50px;text-align:right}.visualization-container{background:var(--secondary-bg);margin:0;padding:2rem;min-height:500px}.visualization-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.visualization-header h3{margin:0;font-size:1.3rem;color:var(--text-primary)}.operation-status{display:flex;align-items:center;gap:1rem}.status-indicator{display:flex;align-items:center;gap:.5rem;padding:.5rem 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p{margin:0;font-size:.9rem}.linked-list-node{display:flex;align-items:center;background:var(--node-bg);border:2px solid var(--node-border);border-radius:12px;padding:1rem 1.25rem;min-width:100px;position:relative;box-shadow:var(--shadow);transition:all .3s ease}.linked-list-node.highlighted{border-color:var(--highlight-color);box-shadow:0 0 20px #fbbf2466;transform:scale(1.05) translateY(-2px);background:linear-gradient(135deg,var(--node-bg) 0%,rgba(251,191,36,.2) 100%)}.node-content{display:flex;flex-direction:column;align-items:center;gap:.25rem}.node-data{font-size:1.25rem;font-weight:700;color:#fff;line-height:1}.node-id{font-size:.7rem;color:#ffffffb3;text-transform:uppercase;letter-spacing:.5px}.node-pointer{margin-left:1rem;font-size:1.5rem;color:var(--highlight-color);font-weight:700;transition:all .3s ease}.operation-info{margin-top:1.5rem;padding:1rem 1.5rem;background:#3b82f60d;border-radius:12px;border:1px solid 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3rem}[data-theme=light]{--primary-bg: #ffffff;--secondary-bg: #f6f8fa;--card-bg: #ffffff;--surface-bg: rgba(0, 0, 0, .05);--text-primary: #24292f;--text-secondary: rgba(36, 41, 47, .8);--text-muted: rgba(36, 41, 47, .6);--text-inverse: #ffffff;--accent-primary: #0969da;--accent-hover: #0550ae;--accent-active: #0a58ca;--accent-light: rgba(9, 105, 218, .1);--button-primary-bg: #0969da;--button-primary-text: #ffffff;--button-primary-hover: #0550ae;--button-secondary-bg: rgba(9, 105, 218, .1);--button-secondary-text: #0969da;--button-secondary-hover: rgba(9, 105, 218, .2);--border-primary: #d0d7de;--border-secondary: #e5e7ea;--border-accent: #0969da;--sidebar-bg: #ffffff;--sidebar-border: #d0d7de;--sidebar-text: #24292f;--sidebar-text-secondary: rgba(36, 41, 47, .7);--sidebar-hover: #f3f4f6;--sidebar-active: rgba(9, 105, 218, .1);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 25px rgba(0, 0, 0, .15);--shadow-xl: 0 20px 40px rgba(0, 0, 0, .2)}:root{--bg-color: var(--primary-bg);--container-bg: var(--secondary-bg);--text-color: var(--text-primary);--button-bg: var(--button-primary-bg);--button-text: var(--button-primary-text);--button-hover: var(--button-primary-hover);--disabled-bg: var(--text-muted);--array-bar-color: var(--accent-primary);--bg-gradient: var(--primary-bg);--header-bg: var(--secondary-bg)}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}:root{--header-height: 70px}.av-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-secondary);transition:var(--transition-normal);box-shadow:var(--shadow-sm)}.av-header.scrolled{box-shadow:var(--shadow-md);background:var(--glass-bg)}.av-container{max-width:1400px;height:100%;margin:0 auto;padding:0 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var(--accent-light)}.nav-link.active:after{content:"";position:absolute;bottom:-1px;left:50%;transform:translate(-50%);width:20px;height:2px;background:var(--accent-primary);border-radius:1px}.nav-icon{width:14px;height:14px;opacity:.8}.nav-actions{display:flex;align-items:center;gap:var(--space-sm);flex-shrink:0}.github-btn{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);font-size:.875rem;font-weight:500;text-decoration:none;color:var(--text-primary);background:var(--accent-light);border:1px solid var(--border-accent);border-radius:var(--radius-md);transition:var(--transition-normal);position:relative;overflow:hidden}.github-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s 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