:root{--primary:#ff6b00;--bg:#fff;--text:#222}
[data-theme="dark"]{--bg:#121212;--text:#f5f5f5}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);transition:.3s}
.container{width:90%;max-width:1200px;margin:auto}
.header{background:var(--primary);padding:20px 0;color:#fff}
.header .container{display:flex;justify-content:space-between;align-items:center}
.logo{font-weight:700;font-size:20px}
.theme-toggle{background:#fff;border:none;padding:6px 12px;border-radius:20px;cursor:pointer}
.hero{padding:80px 0}
.hero-content{display:flex;align-items:center;gap:40px;flex-wrap:wrap}
.hero h1{font-size:42px;margin-bottom:20px}
.hero p{margin-bottom:25px}
.btn-primary{background:var(--primary);color:#fff;padding:12px 25px;border-radius:25px;text-decoration:none;display:inline-block}
.hero img{max-width:400px;width:100%;height:auto}
.section{padding:60px 0;text-align:center}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:40px}
.card{padding:25px;border-radius:10px;background:#f4f4f4}
[data-theme="dark"] .card{background:#1e1e1e}
footer{background:var(--primary);color:#fff;text-align:center;padding:20px;margin-top:40px}
@media(max-width:768px){.hero h1{font-size:30px}}