:root{--primary-color: #3498db;--secondary-color: #2ecc71;--background-color: #f4f6f8;--text-color: #333;--card-background: #ffffff;--border-radius: 8px;--box-shadow: 0 4px 6px rgba(0, 0, 0, .1)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--background-color);color:var(--text-color);line-height:1.6}.page-container{display:flex;flex-direction:column;min-height:100vh}.content-wrap{flex:1;padding:20px;max-width:1200px;margin:0 auto;width:100%}.custom-card.noPointer{cursor:default!important}.app-header{background-color:var(--card-background);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--box-shadow);border-bottom:1px solid #eee;position:relative;z-index:1000}.logo-container img{width:100px}.logo-container h1{margin-left:10px;font-size:1.5em;color:var(--primary-color)}.nav-wrapper{display:flex;align-items:center}.mobile-menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--text-color);z-index:1100;margin-left:10px}.mobile-menu-toggle:hover{color:var(--primary-color)}.main-nav ul{list-style:none;padding:0;margin:0;display:flex;align-items:center}.main-nav li{margin-left:20px}.main-nav a{text-decoration:none;color:var(--text-color);font-weight:500;padding:8px 12px;border-radius:var(--border-radius);transition:background-color .3s ease,color .3s ease;display:block}.main-nav a:hover,.main-nav a.active-link{background-color:var(--primary-color);color:#fff}body.no-scroll-mobile{overflow:hidden}.logo-container{display:flex;align-items:center;text-decoration:none;color:var(--text-color)}.logo-container h1{margin-left:10px;font-size:1.8em;color:var(--primary-color)}@media (max-width: 768px){.logo-container h1{font-size:1.25em}.logo-container .lucide-aperture{width:28px;height:28px}.logo-container img{width:80px}.mobile-menu-toggle{display:block}.main-nav{position:absolute;top:100%;left:0;right:0;width:100%;background-color:var(--card-background);box-shadow:0 4px 6px #0000001a;border-top:1px solid #eee;max-height:0;overflow:hidden;visibility:hidden;opacity:0;transition:max-height .35s ease-in-out,opacity .3s ease-in-out,visibility 0s linear .35s,padding .35s ease-in-out;padding:0 20px}.main-nav.mobile-menu-active{max-height:100vh;visibility:visible;opacity:1;transition:max-height .35s ease-in-out,opacity .3s ease-in-out,visibility 0s linear 0s,padding .35s ease-in-out;padding:10px 20px}.main-nav ul{flex-direction:column;align-items:stretch;width:100%}.main-nav li{margin-left:0;width:100%}.main-nav a{padding:12px 5px;text-align:left;border-bottom:1px solid #f0f0f0}.main-nav li:last-child a{border-bottom:none}}@media (min-width: 769px){.main-nav{position:static;width:auto;background-color:transparent;box-shadow:none;border-top:none;max-height:none;overflow:visible;visibility:visible;opacity:1;padding:0;transition:none}.main-nav ul{flex-direction:row;align-items:center}.main-nav li{margin-left:20px}.main-nav a{padding:8px 12px;border-bottom:none}.mobile-menu-toggle{display:none}}.page-title{margin-bottom:20px;color:var(--primary-color)}.tool-card-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}