/* Genel Stil Ayarları */
:root {
    --ana-renk: #007bff; /* Mavi */
    --vurgu-renk: #28a745; /* Yeşil */
    --arka-plan-renk: #f8f9fa; /* Açık gri */
    --yazi-renk: #343a40; /* Koyu gri */
    --golge: rgba(0,0,0,0.1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--arka-plan-renk);
    color: var(--yazi-renk);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

/* Header ve Footer Stilleri */
header {
    background-color: #ffffff;
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #e2e2e2;
    box-shadow: 0 2px 4px var(--golge);
}

header h1 {
    color: var(--ana-renk);
    margin: 0;
    font-size: 2.5rem;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    border-top: 1px solid #e2e2e2;
    color: #6c757d;
}

/* Ana Sayfa Ürün Listesi */
.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    justify-content: center;
}

.product-item {
    background-color: #fff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    box-shadow: 0 2px 5px var(--golge);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-5px);
}

.product-item a {
    text-decoration: none;
    color: var(--yazi-renk);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-item h3 {
    padding: 15px;
    margin: 0;
    font-size: 1.25rem;
    text-align: center;
}

/* Ürün Sayfası */
article {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--golge);
}

article h2 {
    color: var(--ana-renk);
    font-size: 2rem;
    margin-top: 0;
}

article img {
    display: block;
    margin: 20px auto;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

article p {
    font-size: 1.1rem;
    color: #495057;
}

/* Satın Al Butonu */
.buy-button {
    display: block;
    width: 250px;
    margin: 30px auto 0;
    padding: 15px 20px;
    background-color: var(--vurgu-renk);
    color: #fff;
    text-align: center;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 50px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.buy-button:hover {
    background-color: #218838;
    transform: scale(1.05);
}