.app-layout{background:#f8fafc;min-height:100vh;display:flex}.main-content{flex-direction:column;flex:1;min-height:100vh;margin-left:280px;transition:margin-left .3s cubic-bezier(.4,0,.2,1);display:flex}.main-content.sidebar-collapsed{margin-left:0;padding-left:0}.top-navbar{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:10;background:#fffc;justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex;position:sticky;top:0}.main-content.sidebar-collapsed .top-navbar{padding-left:1rem}.nav-left{align-items:center;gap:1rem;display:flex}.mobile-menu-container{display:block}.page-title-section{cursor:pointer;align-items:center;gap:.75rem;display:flex}.page-logo{border-radius:8px;transition:all .3s}.page-logo:hover{transform:scale(1.05)}.page-title{color:#1e293b;margin:0;font-size:1.5rem;font-weight:700}.page-subtitle{color:#64748b;margin:0;font-size:.875rem}.nav-right{align-items:center;gap:1rem;display:flex}.content-wrapper{flex-direction:column;flex:1;gap:1rem;padding:1rem;display:flex}.main-content.sidebar-collapsed .content-wrapper{padding-left:1rem}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;display:grid}.tool-card{cursor:pointer;background:#fff;border:1px solid #0000;border-radius:12px;padding:1.5rem;transition:all .3s;box-shadow:0 1px 3px #0000001a}.tool-card:hover{border-color:#3b82f6;transform:translateY(-2px);box-shadow:0 4px 20px #00000026}.tool-header{align-items:flex-start;gap:1rem;margin-bottom:1rem;display:flex}.tool-icon{flex-shrink:0;font-size:2.5rem}.tool-name{color:#1e293b;flex:1;margin:0;font-size:1.125rem;font-weight:600;line-height:1.4}.tool-description{color:#64748b;margin:0 0 1rem;font-size:.875rem;line-height:1.5}.tool-footer{justify-content:space-between;align-items:center;display:flex}.tool-tags{flex-wrap:wrap;gap:.5rem;display:flex}.tool-tag{color:#475569;background:#f1f5f9;border-radius:6px;padding:.25rem .5rem;font-size:.75rem;font-weight:500}.tool-meta{color:#94a3b8;font-size:.75rem}.empty-state{text-align:center;background:#fff;border-radius:12px;padding:4rem 2rem;box-shadow:0 1px 3px #0000001a}.empty-icon{margin-bottom:1rem;font-size:4rem}.empty-title{color:#1e293b;margin:0 0 .5rem;font-size:1.5rem;font-weight:600}.empty-description{color:#64748b;margin:0}.category-header{background:#fff;border-radius:12px;flex-direction:column;gap:.5rem;margin-bottom:1.5rem;padding:1.5rem;display:flex;box-shadow:0 1px 3px #0000001a}.category-title{color:#1e293b;margin:0;font-size:1.25rem;font-weight:700}.category-subtitle{color:#64748b;margin:0;font-size:.875rem}.technical-intro-section{border:none;margin-bottom:0;padding-bottom:0}.tools-grid{border:none;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin:0;padding:0;display:grid}.hot-tools-section{margin-bottom:2rem}.hot-tools-section .section-header{text-align:center;margin-bottom:1.5rem}.hot-tools-section .section-title{color:#1f2937;background:linear-gradient(135deg,#f59e0b,#ef4444);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:.5rem;font-size:1.875rem;font-weight:700}.hot-tools-section .section-subtitle{color:#6b7280;margin:0;font-size:1rem}.tool-rank{color:#fff;background:linear-gradient(135deg,#f59e0b,#ef4444);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:12px;font-weight:600;display:inline-flex}.hot-tools-page .tool-card{transition:all .3s;position:relative}.hot-tools-page .tool-card:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.hot-tools-page .tool-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.hot-tools-page .tool-header .flex{align-items:center;gap:12px;display:flex}.hot-tools-page .tool-name{color:#1f2937;margin:0;font-size:1.1rem;font-weight:600;line-height:1.3}.hot-tools-page .tool-description{color:#6b7280;margin:0 0 16px;font-size:.9rem;line-height:1.5}.hot-tools-page .tool-footer{border-top:1px solid #f3f4f6;justify-content:space-between;align-items:center;margin-top:16px;padding-top:12px;display:flex}.hot-tools-page .tool-tags{flex-wrap:wrap;gap:6px;display:flex}.hot-tools-page .tool-tag{color:#6b7280;background:#f3f4f6;border-radius:12px;padding:2px 8px;font-size:.75rem;font-weight:500;display:inline-block}.hot-tools-page .tool-meta{align-items:center;gap:4px;display:flex}.hot-tools-page .favorite-btn{color:#9ca3af;transition:color .2s}.hot-tools-page .favorite-btn:hover{color:#fbbf24}.mobile-menu-btn{cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:8px;transition:background-color .2s;display:flex}.mobile-menu-btn:hover{background-color:#0000000d}.menu-icon{justify-content:center;align-items:center;display:flex}.mobile-overlay{z-index:999;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);cursor:pointer;touch-action:manipulation;opacity:1;background-color:#00000080;width:100vw;height:100vh;transition:opacity .3s;position:fixed;top:0;left:0}@media (max-width:768px){.main-content{z-index:1;transition:none;position:relative;width:100%!important;margin-left:0!important}.main-content.sidebar-collapsed{width:100%!important;margin-left:0!important}.content-wrapper{padding:1rem}.tools-grid{grid-template-columns:1fr}.top-navbar{justify-content:space-between;align-items:center;gap:1rem;padding:1rem;display:flex;position:relative}.page-title{font-size:1.25rem}.nav-left{z-index:1000;flex:1;align-items:center;gap:12px;min-width:0;display:flex;position:relative}.page-title-section{flex:1;min-width:0;overflow:hidden}.page-title{white-space:nowrap;text-overflow:ellipsis;font-size:1.25rem;overflow:hidden}.nav-right{flex-shrink:0}.mobile-menu-container{display:block}}@media (min-width:769px){.main-content{margin-left:280px;transition:margin-left .3s cubic-bezier(.4,0,.2,1)}.main-content.sidebar-collapsed{margin-left:0}}.home-hero-section{text-align:center;margin-bottom:0;padding:1rem 0}.home-main-title{color:#1a202c;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:.75rem;font-size:1.875rem;font-weight:700;line-height:1.3}.home-main-subtitle{color:#64748b;max-width:800px;margin-bottom:0;margin-left:auto;margin-right:auto;font-size:1.125rem;line-height:1.6}@media (max-width:768px){.home-main-title{font-size:1.5rem}.home-main-subtitle{max-width:100%;font-size:1rem}}