:root{--bg-color:#ffffff;--bg-secondary:#f9fafb;--bg-tertiary:#f0f4f8;--text-primary:#111827;--text-secondary:#4b5563;--accent-color:#1f2937;--accent-light:#e5e7eb;--border-color:#e5e7eb;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--header-bg:rgba(255,255,255,0.9);--font-primary:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--radius-md:8px;--radius-lg:16px;--transition:all 0.3s ease;}[data-theme="dark"]{--bg-color:#121212;--bg-secondary:#1e1e1e;--bg-tertiary:#2a2a2a;--text-primary:#f9fafb;--text-secondary:#d1d5db;--accent-color:#f3f4f6;--accent-light:#374151;--border-color:#374151;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.4);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.5);--header-bg:rgba(18,18,18,0.9);}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;font-size:16px;overflow-x:hidden;}body{font-family:var(--font-primary);background-color:var(--bg-color);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color var(--transition),color var(--transition);overflow-x:hidden;}a{color:inherit;text-decoration:none;transition:color var(--transition);}a:hover,a:focus{color:var(--text-secondary);}img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md);}button{cursor:pointer;font-family:inherit;border:none;background:none;}ul{list-style:none;}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.5rem;}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:1rem;color:var(--text-primary);}h1{font-size:2.5rem;}h2{font-size:2rem;}h3{font-size:1.5rem;}p{margin-bottom:1.5rem;color:var(--text-secondary);}.site-header{position:sticky;top:0;z-index:1000;background-color:var(--header-bg);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);}.header-inner{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;max-width:1200px;margin:0 auto;}.logo{font-size:1.5rem;font-weight:800;letter-spacing:-0.5px;}.main-nav{display:none;}.nav-list{display:flex;gap:2rem;}.nav-link{font-weight:500;font-size:0.95rem;}.menu-toggle{display:block;font-size:1.5rem;color:var(--text-primary);}.header-actions{display:flex;align-items:center;gap:1rem;}.icon-btn{color:var(--text-primary);font-size:1.25rem;padding:0.5rem;border-radius:50%;transition:background-color var(--transition);}.icon-btn:hover,.icon-btn:focus{background-color:var(--bg-secondary);}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--bg-color);z-index:1001;display:flex;flex-direction:column;padding:2rem;transform:translateX(100%);transition:transform 0.3s ease-in-out;}.mobile-menu-overlay.active{transform:translateX(0);}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;}.mobile-nav-list{display:flex;flex-direction:column;gap:1.5rem;font-size:1.5rem;font-weight:600;}.progress-container{width:100%;height:4px;background:transparent;position:absolute;bottom:-4px;left:0;}.progress-bar{height:4px;background:var(--text-primary);width:0%;}.btn{display:inline-block;padding:0.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;text-align:center;transition:all var(--transition);}.btn-primary{background-color:var(--text-primary);color:var(--bg-color);}.btn-primary:hover{background-color:var(--text-secondary);color:var(--bg-color);}.btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);}.card{background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition);}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}.card-img-wrap{width:100%;height:200px;overflow:hidden;}.card-img-wrap img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 0.5s ease;}.card:hover .card-img-wrap img{transform:scale(1.05);}.card-content{padding:1.5rem;}.section{padding:5rem 0;}.section-bg{background-color:var(--bg-secondary);}.section-header{text-align:center;margin-bottom:3rem;}.grid-2{display:grid;grid-template-columns:1fr;gap:2rem;}.grid-3{display:grid;grid-template-columns:1fr;gap:2rem;}.table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:2rem 0;}.table-responsive table{min-width:800px;}table{width:100%;border-collapse:collapse;}th,td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color);}th{background-color:var(--bg-secondary);font-weight:600;}.search-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.8);z-index:2000;align-items:center;justify-content:center;padding:1rem;}.search-modal.active{display:flex;}.search-content{background:var(--bg-color);padding:2rem;border-radius:var(--radius-lg);width:100%;max-width:600px;}.search-input{width:100%;padding:1rem;font-size:1.25rem;border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-color);color:var(--text-primary);}.site-footer{background-color:var(--bg-secondary);padding:4rem 0 2rem;border-top:1px solid var(--border-color);}.footer-grid{display:grid;grid-template-columns:1fr;gap:2rem;margin-bottom:3rem;}.footer-col h4{margin-bottom:1.5rem;}.footer-links li{margin-bottom:0.75rem;}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid var(--border-color);font-size:0.875rem;}.back-to-top{position:fixed;bottom:2rem;right:2rem;background:var(--text-primary);color:var(--bg-color);width:3rem;height:3rem;border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all var(--transition);z-index:99;}.back-to-top.visible{opacity:1;visibility:visible;}@media (min-width:768px){h1{font-size:3rem;}h2{font-size:2.5rem;}.grid-2{grid-template-columns:repeat(2,1fr);}.grid-3{grid-template-columns:repeat(2,1fr);}.footer-grid{grid-template-columns:repeat(2,1fr);}}@media (min-width:1024px){h1{font-size:4rem;}.menu-toggle{display:none;}.main-nav{display:block;}.grid-3{grid-template-columns:repeat(3,1fr);}.footer-grid{grid-template-columns:repeat(4,1fr);}}