:root{--primary-color:#2563eb;--secondary-color:#1e293b;--accent-color:#f59e0b;--bg-light:#f8fafc;--text-dark:#334155;--white:#fff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Cairo',sans-serif;line-height:1.6;color:var(--text-dark);background-color:var(--white);scroll-behavior:smooth}.container{max-width:1100px;margin:0 auto;padding:0 20px}header{background:var(--white);box-shadow:0 2px 10px rgba(0,0,0,.1);padding:15px 0;position:sticky;top:0;z-index:1000}.navbar{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:bold;color:var(--secondary-color)}.logo span{color:var(--primary-color)}nav ul{display:flex;list-style:none;gap:20px;align-items:center}nav ul li a{text-decoration:none;color:var(--text-dark);font-weight:600;transition:.3s}nav ul li a:hover{color:var(--primary-color)}.btn-nav{background:var(--primary-color);color:#fff!important;padding:8px 20px;border-radius:5px}.hero{background:linear-gradient(135deg,#1e293b 0%,#2563eb 100%);color:#fff;padding:100px 0;text-align:center}.hero h1{font-size:3rem;margin-bottom:20px}.hero p{font-size:1.2rem;margin-bottom:30px;opacity:.9}.btn{padding:12px 30px;border-radius:8px;text-decoration:none;font-weight:bold;display:inline-block;transition:.3s}.btn.primary{background:var(--accent-color);color:#fff}.btn.secondary{background:transparent;border:2px solid #fff;color:#fff;margin-right:10px}.btn:hover{transform:translateY(-3px);box-shadow:0 5px 15px rgba(0,0,0,.2)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;padding:60px 0}.card{text-align:center;padding:40px;background:var(--bg-light);border-radius:15px;transition:.3s}.card:hover{background:var(--white);box-shadow:0 10px 30px rgba(0,0,0,.1)}.icon{font-size:3rem;color:var(--primary-color);margin-bottom:20px}.section-title{text-align:center;font-size:2rem;margin-bottom:40px}.app-card{background:#272727;color:#fff;text-decoration:none;padding:30px;border-radius:15px;text-align:center}.app-card i{font-size:3rem;margin-bottom:15px;display:block}.contact-section{background:var(--bg-light);padding:80px 0}.contact-wrapper{max-width:600px;margin:0 auto}.contact-form{display:flex;flex-direction:column;gap:15px}.contact-form input,.contact-form textarea{padding:15px;border:1px solid #ddd;border-radius:8px;font-family:'Cairo'}footer{background:var(--secondary-color);color:#fff;padding:40px 0;text-align:center}