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64px;--sidebar-width: 240px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease}[data-theme=dark]{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-card: #1e293b;--bg-card-hover: #253348;--bg-input: #1e293b;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-tertiary: #64748b;--border-color: #334155;--border-color-light: #1e293b;--color-primary-bg: rgba(99, 102, 241, .15);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -2px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .35), 0 4px 6px -4px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .3);--gradient-hero: linear-gradient(135deg, #020617 0%, #0f0c29 50%, #1a1145 100%)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-height) + 20px)}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);transition:background-color var(--transition-normal),color var(--transition-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{border:none;background:none;cursor:pointer;font-family:inherit;font-size:inherit;color:inherit}input{font-family:inherit;font-size:inherit;color:inherit;border:none;outline:none;background:none}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}.section{padding:var(--space-xl) 0}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.section-title{font-size:var(--text-2xl);font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:var(--space-sm)}.section-title 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var(--color-primary);outline-offset:2px}button:focus:not(:focus-visible),a:focus:not(:focus-visible),input:focus:not(:focus-visible){outline:none}.hero-search-input:focus-visible,.nav-search-input:focus-visible{outline:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}body,.skip-to-content{transition:none}}@media print{.sidebar,.mobile-header,.sidebar-overlay,.topbar,.hero-search,.hero-featured,.filter-bar,.back-to-top,.skip-to-content{display:none!important}.app-layout{display:block}.main-wrapper{margin-left:0}body{background:#fff;color:#000;font-size:12pt}.hero{background:none;padding:10px 0}.hero-title,.hero-subtitle{color:#000}.hero-title .gradient-text{-webkit-text-fill-color:#6366f1}.tool-card{break-inside:avoid;border:1px solid #ccc;box-shadow:none}.tool-card:hover{transform:none;box-shadow:none}a[href]:after{content:" (" attr(href) ")";font-size:10pt;color:#666}.tool-card 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a:hover{text-decoration:underline}.detail-topbar{position:sticky;top:0;z-index:50;background:var(--bg-primary);border-bottom:1px solid var(--border-color);padding:0 var(--space-lg);transition:background-color var(--transition-normal),border-color var(--transition-normal)}.detail-topbar-inner{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:var(--nav-height)}.detail-topbar .nav-brand{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--text-xl);font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap;text-decoration:none}.detail-topbar .brand-icon{font-size:var(--text-2xl);-webkit-text-fill-color:initial}.detail-topbar-actions{display:flex;align-items:center;gap:var(--space-sm)}@media(max-width:768px){.breadcrumb{padding:var(--space-sm) var(--space-md)}.tool-detail{padding:0 var(--space-md) 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