:root{
  --accent:#e73b3b;
  --muted:#666;
  --bg:#fffaf8;
  --card:#fff;
  --shadow: 0 8px 30px rgba(0,0,0,0.06);
  --container:1100px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:#111;line-height:1.5}
.container{max-width:var(--container);margin:0 auto;padding:24px}

.site-header{background:#fff;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;color:var(--accent);text-decoration:none;font-size:1.25rem}
.nav a{margin-right:16px;color:var(--muted);text-decoration:none}
.mobile-toggle{display:none;border:none;background:transparent;font-size:20px}

.hero{padding:48px 0;background:linear-gradient(180deg,#fff 0%, #fffaf8 100%);display:flex;align-items:center}
.hero-inner{display:flex;gap:24px;align-items:center}
.hero-left{flex:1}
.hero-right{flex:1;text-align:right}
.hero-right img{max-width:420px;width:100%;border-radius:12px;box-shadow:var(--shadow)}

.btn{background:var(--accent);color:#fff;border:none;padding:10px 16px;border-radius:8px;cursor:pointer;text-decoration:none;display:inline-block}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px;margin-top:16px}
.product{background:var(--card);padding:12px;border-radius:10px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.product img{width:100%;height:160px;object-fit:cover;border-radius:8px}
.product-title{font-weight:700;margin:12px 0 6px}
.product-desc{color:var(--muted);font-size:0.95rem}
.product-price{color:var(--accent);font-weight:700;margin-top:auto}
.product-actions{display:flex;gap:8px;margin-top:12px}

.center{text-align:center;margin-top:18px}

.site-footer{background:#fff;padding:18px 0;margin-top:36px;box-shadow:0 -6px 24px rgba(0,0,0,0.02)}
.footer-grid{display:flex;gap:12px;justify-content:space-between;align-items:center}

.modal{position:fixed;inset:0;background:rgba(0,0,0,0.45);display:flex;align-items:center;justify-content:center}
.modal.hidden{display:none}
.modal-content{background:#fff;padding:20px;border-radius:12px;max-width:720px;width:90%;box-shadow:var(--shadow);position:relative}
.modal-close{position:absolute;top:8px;right:8px;background:transparent;border:none;font-size:22px;cursor:pointer}
.cart-total{margin-top:14px;font-weight:700; text-align:right}
.form-result{margin-top:12px;color:green}

/* product detail */
.product-detail{display:flex;gap:24px;align-items:flex-start}
.product-detail img{width:460px;max-width:100%;border-radius:12px}
.product-detail .info{flex:1}

/* responsive */
@media (max-width:860px){
  .hero-inner{flex-direction:column;align-items:flex-start}
  .hero-right{text-align:left}
  .mobile-toggle{display:inline-block}
  .nav{display:none}
  .product-detail{flex-direction:column}
}