:root{--accent:#f60;--border:#ccc;--text:#444}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 Verdana,Arial,sans-serif;background:#eee;color:var(--text)}
.wrapper{max-width:1000px;margin:0 auto;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.banner{background:url(gfx/banner.png) center/cover no-repeat;height:170px}
nav{display:flex;gap:.3rem;background:#ddd;padding:.4rem .8rem;flex-wrap:wrap}
nav a{color:#555;text-decoration:none;padding:.45rem .7rem}
nav a.active,nav a:hover{background:var(--accent);color:#fff}
.content{display:flex;gap:1.5rem;padding:1rem}
main{flex:2}
aside{flex:1;background:#fffbe8;border:1px solid #eed;padding:1rem;border-radius:6px;text-align:center}
img{max-width:100%;height:auto}
.store{height:40px}
footer{border-top:1px solid #ccc;padding:1rem;text-align:center;font-size:.9rem}
@media(max-width:800px){.content{flex-direction:column}}