:root{--app-primary:#3b82f6;--app-secondary:#64748b;--app-success:#10b981;--app-warning:#f59e0b;--app-danger:#ef4444;--app-light:#f8fafc;--app-dark:#1e293b;--app-border:#e2e8f0;--app-shadow:0 4px 6px -1px rgba(0,0,0,.1);--app-shadow-lg:0 10px 15px -3px rgba(0,0,0,.1);--app-radius:12px;--app-transition:all .3s cubic-bezier(.4,0,.2,1)}.app-header{background:linear-gradient(135deg,var(--app-light) 0%,#fff 100%);padding:60px 20px;text-align:center;border-radius:var(--app-radius);margin:20px 0 40px;box-shadow:var(--app-shadow);position:relative;overflow:hidden}.app-header:before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;opacity:.3;z-index:0}.app-header-container{position:relative;z-index:1;max-width:800px;margin:0 auto}.app-header-title{font-size:3rem;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,var(--app-primary),var(--app-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}.app-header-subtitle{font-size:1.5rem;font-weight:600;margin-bottom:20px;color:var(--app-secondary);opacity:.9}.app-header-description{font-size:1.125rem;line-height:1.7;color:var(--app-secondary);max-width:600px;margin:0 auto}.app-cards-container{margin:40px 0}.app-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;padding:0}@media (min-width:1024px){.app-cards-grid{grid-template-columns:repeat(4,1fr)}}@media (min-width:769px) and (max-width:1023px){.app-cards-grid{grid-template-columns:repeat(3,1fr)}}.app-card{background:#fff;border:2px solid var(--app-border);border-radius:var(--app-radius);padding:16px;box-shadow:var(--app-shadow);transition:var(--app-transition);position:relative;overflow:hidden;opacity:0;transform:translateY(20px);aspect-ratio:1;display:flex;flex-direction:column;justify-content:space-between;min-height:200px}.app-card.animate-in{opacity:1;transform:translateY(0)}.app-card.in-view{animation:slideInUp .6s ease-out forwards}.app-card:hover,.app-card.hovered{transform:translateY(-4px);box-shadow:var(--app-shadow-lg);border-color:var(--app-primary)}.app-card.featured{border-color:var(--app-warning);background:linear-gradient(135deg,#fffbeb 0%,#fff 100%)}.app-card.featured:before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--app-warning),var(--app-primary))}.app-card-title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px;gap:8px}.app-card-actions{display:flex;gap:8px;opacity:1;transition:var(--app-transition);flex-shrink:0;visibility:visible}.app-card-link{width:28px;height:28px;border:1px solid var(--app-primary);background:var(--app-light);border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--app-transition);text-decoration:none;color:var(--app-primary);opacity:1;visibility:visible}.app-card-link:hover{background:var(--app-primary);border-color:var(--app-primary);color:#fff;transform:scale(1.05)}.app-card-link svg{width:14px;height:14px}.app-card-content{height:100%;display:flex;flex-direction:column;justify-content:flex-start}.app-card-title{font-size:1.25rem;font-weight:700;margin:0;color:var(--app-primary);line-height:1.3;flex:1}.app-card-title a{color:var(--app-primary);text-decoration:none;transition:var(--app-transition)}.app-card-title a:hover{text-decoration:underline}.app-card-author{font-size:.875rem;color:var(--app-secondary);margin:4px 0 12px;font-weight:500}.app-card-author a{color:var(--app-secondary);text-decoration:none;transition:var(--app-transition)}.app-card-author a:hover{color:var(--app-primary);text-decoration:underline}.app-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.app-tag{background:var(--app-light);color:var(--app-secondary);padding:6px 12px;border-radius:20px;font-size:.75rem;font-weight:500;border:1px solid var(--app-border);transition:var(--app-transition)}.app-tag:hover{background:var(--app-primary);color:#fff;border-color:var(--app-primary)}.app-card-footer{border-top:1px solid var(--app-border);padding-top:8px;margin-top:8px}.app-card-stats{display:flex;justify-content:space-between;align-items:center;font-size:.875rem;color:var(--app-secondary)}.app-likes,.app-date{display:flex;align-items:center;gap:6px;font-weight:500}@keyframes slideInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@media (max-width:768px){.app-header{padding:40px 16px;margin:16px 0 32px}.app-header-title{font-size:2rem}.app-header-subtitle{font-size:1.25rem}.app-header-description{font-size:1rem}.app-cards-grid{grid-template-columns:repeat(2,1fr);gap:16px}.app-card{padding:14px;min-height:180px}.app-card-title{font-size:1.1rem}}@media (max-width:480px){.app-header-title{font-size:1.75rem}.app-cards-grid{grid-template-columns:1fr;gap:16px}.app-card{padding:16px;min-height:200px}.app-card-title{font-size:1.2rem}.app-card-stats{flex-direction:column;gap:8px;align-items:flex-start}}.app-header.in-view{animation:fadeIn .8s ease-out forwards}.app-card-link:focus{outline:2px solid var(--app-primary);outline-offset:2px}.app-card:focus-within{box-shadow:var(--app-shadow-lg)}@media (prefers-color-scheme:dark){:root{--app-light:#1e293b;--app-dark:#f8fafc;--app-border:#374151}.app-card{background:#1f2937;color:#f8fafc}.app-header{background:linear-gradient(135deg,#1e293b 0%,#374151 100%)}}