:root{--bg-color:#f8fafc;--sidebar-bg:#ffffff;--card-bg:#ffffff;--text-main:#0f172a;--text-muted:#64748b;--primary-color:#6366f1;--primary-hover:#4f46e5;--border-color:#e2e8f0;--sidebar-width:280px}*{margin:0;padding:0;box-sizing:border-box;font-family:"Inter",sans-serif}body{background-color:var(--bg-color);color:var(--text-main);display:flex;overflow-x:hidden;transition:background-color .3s,color .3s}.sidebar{width:var(--sidebar-width);background-color:var(--sidebar-bg);height:100vh;position:fixed;border-right:1px solid var(--border-color);display:flex;flex-direction:column;overflow-y:auto;z-index:999;transition:transform .3s ease,background-color .3s}.logo-container,.logo-icon{display:flex;align-items:center}.logo-container{padding:24px;gap:12px;border-bottom:1px solid var(--border-color)}.logo-icon{background:var(--primary-color);color:#fff;width:36px;height:36px;border-radius:8px;justify-content:center;font-size:18px}.logo-text{font-size:22px;font-weight:700;color:var(--text-main);text-decoration:none}.nav-menu{padding:20px 12px;display:flex;flex-direction:column;gap:5px}.nav-title{font-size:12px;text-transform:uppercase;color:var(--text-muted);font-weight:600;margin:10px 0 10px 12px;letter-spacing:.5px}.nav-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;color:var(--text-main);text-decoration:none;font-weight:500;font-size:15px;transition:all .2s ease}.nav-item i,.nav-item svg{color:var(--text-muted);width:20px;height:20px;text-align:center;transition:color .2s ease}.nav-item:hover{background-color:#e0e7ff}.nav-item:hover,.nav-item:hover i,.nav-item:hover svg{color:var(--primary-color)}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;width:calc(100% - var(--sidebar-width));display:flex;flex-direction:column}.top-header{background-color:var(--card-bg);padding:20px 40px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:20px;position:sticky;top:0;z-index:10;transition:background-color .3s}.d-none-desktop{display:none!important}.d-none-mobile{display:flex!important}@media (max-width:992px){.d-none-desktop{display:flex!important}.d-none-mobile{display:none!important}.top-header{padding:12px 16px;gap:10px}}.search-bar input:focus{border-color:var(--primary-color);background-color:var(--card-bg)}.icon-btn{background:0 0;border:1px solid var(--border-color);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-muted);cursor:pointer;transition:.2s;flex-shrink:0}.icon-btn:hover{background-color:var(--bg-color);color:var(--text-main)}.mobile-search-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgb(0 0 0/.8);backdrop-filter:blur(5px);z-index:9999;display:none;align-items:flex-start;justify-content:center;padding-top:80px;opacity:0;transition:opacity .3s ease}.mobile-search-form{width:90%;max-width:500px;position:relative;background:var(--card-bg);border-radius:12px;overflow:hidden;display:flex;align-items:center}.close-search-btn,.mobile-search-form i{padding:0 15px;color:var(--text-muted)}.mobile-search-form input{flex:1;padding:15px 15px 15px 0;border:0;outline:0;background:#fff0;color:var(--text-main);font-size:16px}.close-search-btn{background:0 0;border:0;padding:15px;cursor:pointer;font-size:18px}.page-content-wrapper{flex:1}.category-hero{padding:40px 40px 20px}.category-hero h1{font-size:28px;display:flex;gap:10px}.tools-section{padding:0 40px 60px}.category-hero h1,.premium-cat-icon{align-items:center;color:var(--primary-color)}.premium-cat-icon{display:inline-flex;justify-content:center;width:48px;height:48px;background-color:#e0e7ff;border-radius:14px;flex-shrink:0;padding:12px;box-shadow:0 4px 12px rgb(99 102 241/.15)}.premium-cat-icon svg{width:100%!important;height:100%!important}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.premium-site-footer{position:relative;background:linear-gradient(to bottom,var(--bg-color),var(--card-bg));border-top:1px solid var(--border-color);margin-top:auto;padding:60px 20px 30px;overflow:hidden}.premium-footer-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;text-align:center;gap:25px;max-width:800px;margin:0 auto}.footer-logo-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-main);font-size:24px;font-weight:800;letter-spacing:-.5px}#backToTop,.footer-logo-icon{background:var(--primary-color);color:#fff;box-shadow:0 4px 15px rgb(99 102 241/.4);align-items:center;justify-content:center}.footer-logo-icon{width:36px;height:36px;border-radius:10px;display:flex;font-size:16px}.premium-footer-links ul{list-style:none;display:flex;justify-content:center;gap:25px;padding:0;margin:0;flex-wrap:wrap}.premium-footer-links a{color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;transition:.3s ease}.premium-footer-links a:hover{color:var(--primary-color);transform:translateY(-2px);display:inline-block}.premium-footer-bottom{font-size:12px;color:var(--text-muted);border-top:1px dashed var(--border-color);padding-top:20px;width:100%;opacity:.7;font-weight:500;margin-top:10px}#backToTop{display:none;position:fixed;bottom:30px;right:30px;border:0;width:45px;height:45px;border-radius:50%;font-size:18px;cursor:pointer;z-index:9999;transition:.3s}#backToTop:hover{background:var(--primary-hover);transform:translateY(-4px)}@media (max-width:992px){.sidebar{transform:translateX(-100%);box-shadow:none}.main-content{margin-left:0;width:100%}.icon-btn{width:36px;height:36px;font-size:14px}.category-hero,.tools-section{padding-left:20px;padding-right:20px}}