SAMD21 M0-Mini 32-bit ARM Cortex M0 Core Compatible with Arduino Zero M0 Form Mi

“`html

body {
font-family: ‘Segoe UI’, Roboto, Helvetica, Arial, sans-serif;
background: #f8f9fa;
margin: 0;
padding: 2rem 1rem;
display: flex;
justify-content: center;
}
.product-card {
max-width: 1100px;
width: 100%;
background: white;
border-radius: 24px;
box-shadow: 0 12px 30px rgba(0,0,0,0.08);
padding: 2rem 2.5rem;
transition: all 0.2s;
}
h1 { font-size: 2rem; font-weight: 600; margin: 0 0 0.25rem; color: #111; }
.brand-sub { color: #555; font-size: 0.95rem; margin-bottom: 1.5rem; }
.gallery {
display: flex;
flex-wrap: wrap;
gap: 1.2rem;
margin: 1.5rem 0 2rem;
}
.gallery img {
max-width: 180px;
height: auto;
border-radius: 16px;
box-shadow: 0 4px 12px rgba(0,0,0,0.06);
transition: transform 0.2s;
border: 1px solid #e9ecef;
}
.gallery img:hover { transform: scale(1.02); }
.price-area {
font-size: 2rem;
font-weight: 700;
color: #0a7e3c;
margin: 0.5rem 0 1rem;
}
.price-area small { font-size: 1rem; font-weight: 400; color: #555; }
.specs-table {
width: 100%;
border-collapse: collapse;
margin: 1.8rem 0;
background: #f8f9fa;
border-radius: 16px;
overflow: hidden;
}
.specs-table td, .specs-table th {
padding: 0.75rem 1.2rem;
text-align: left;
border-bottom: 1px solid #e2e6ea;
}
.specs-table tr:last-child td { border-bottom: none; }
.specs-table td:first-child { font-weight: 600; color: #212529; width: 40%; }
.desc-box {
background: #f1f3f5;
padding: 1.5rem 1.8rem;
border-radius: 20px;
margin: 1.5rem 0;
line-height: 1.6;
}
.why-buy {
background: #e9f7ef;
padding: 1.5rem 2rem;
border-radius: 20px;
margin: 1.8rem 0;
}
.why-buy ul {
margin: 0.5rem 0 0;
padding-left: 1.2rem;
list-style