:root{--primary-blue:#0d6efd;--secondary-blue:#3da1ff;--gradient-start:#0f7a8e;--gradient-end:#032b5e;--text-dark:#2c3e50;--text-light:#fff;--bg-light:#f8f9fa;--bg-dark:#121212}body{font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;margin:0;padding:0;background-color:#f4f7f6;color:var(--text-dark);line-height:1.6}.site-header{background:#fff;padding:15px 5%;display:flex;justify-content:space-between;align-items:center;box-shadow:0 4px 12px rgba(0,0,0,.05);position:sticky;top:0;z-index:1000}.site-header .logo a{font-size:26px;font-weight:900;text-decoration:none;color:#000;display:flex;align-items:center;letter-spacing:-.5px}.site-header .logo span{color:#0f7a8e;margin-right:5px}.site-header nav a{margin:0 18px;text-decoration:none;color:#333;font-weight:500;transition:color .3s}.site-header nav a:hover{color:var(--primary-blue)}.btn-primary{background:var(--primary-blue);color:#fff;padding:10px 24px;border-radius:6px;text-decoration:none;font-weight:600;transition:all .3s ease;display:inline-block}.btn-primary:hover{background:#0b5ed7;transform:translateY(-2px);box-shadow:0 4px 10px rgba(13,110,253,.3)}.hero{background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);color:#fff;padding:80px 5%;text-align:left}.hero h1{font-size:46px;margin-bottom:20px;line-height:1.2;font-weight:800}.hero p{font-size:18px;max-width:600px;margin-bottom:30px;opacity:.9}.btn-accent{background:0 0;color:#fff;padding:12px 28px;border-radius:6px;text-decoration:none;font-weight:700;border:2px solid var(--secondary-blue);transition:all .3s}.btn-accent:hover{background:var(--secondary-blue);color:#000}.container{max-width:1200px;margin:0 auto;padding:40px 20px}.single-layout{display:flex;flex-wrap:wrap;gap:40px}.post-content{flex:1 1 65%;background:#fff;padding:40px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.04);font-size:18px;line-height:1.8;color:#333}.post-content h1{font-size:36px;color:var(--text-dark);margin-top:0;margin-bottom:15px;line-height:1.3}.post-meta{font-size:14px;color:#7f8c8d;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid #eee}.post-content h2,.post-content h3{color:var(--gradient-end);margin-top:30px}.post-content img{max-width:100%;height:auto;border-radius:8px;margin:20px 0}.post-sidebar{flex:1 1 30%;min-width:300px}.sticky-ad{position:sticky;top:100px;background:linear-gradient(135deg,#1e293b 0%,#0f172a 100%);color:#fff;padding:35px 25px;border-radius:16px;text-align:center;box-shadow:0 20px 40px rgba(0,0,0,.15);border:1px solid rgba(255,255,255,.1);transition:transform .3s ease}.sticky-ad:hover{transform:translateY(-5px)}.sticky-ad h3{margin-top:0;font-size:24px;font-weight:800;color:#38bdf8;margin-bottom:15px}.sticky-ad p{font-size:15px;margin-bottom:25px;color:#cbd5e1}.sticky-ad .price-tag{font-size:32px;font-weight:900;margin-bottom:20px;color:#fff}.sticky-ad .btn-ad{background:var(--primary-blue);color:#fff;padding:14px 30px;border-radius:50px;text-decoration:none;font-weight:700;display:block;text-transform:uppercase;letter-spacing:1px;transition:all .3s;box-shadow:0 4px 15px rgba(13,110,253,.4)}.sticky-ad .btn-ad:hover{background:#fff;color:var(--primary-blue)}.site-footer{background:#021a3a;color:#fff;text-align:center;padding:30px 20px;margin-top:60px}@media (max-width:768px){.site-header{flex-direction:column;gap:15px}.hero{text-align:center;padding:50px 20px}.single-layout{flex-direction:column}.sticky-ad{position:relative;top:0}}