:root {
    --main-green: #2ecc71;
    --dark-bg: #2c3e50;
    --light-gray: #ecf0f1;
    --accent: #27ae60;
}

body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; background: var(--light-gray); color: #333; }

.container { max-width: 1300px; margin: 0 auto; padding: 20px; display: flex; flex-direction: column; gap: 20px; }

/* Современный баннер */
.banner { 
    height: 350px; border-radius: 15px; overflow: hidden; 
    box-shadow: 0 10px 20px rgba(0,0,0,0.1); background: #fff; position: relative;
}

.main-layout { display: flex; gap: 25px; }

/* Сайдбары */
.sidebar-left, .sidebar-right { 
    width: 260px; background: #fff; padding: 20px; border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05); height: fit-content;
}

.sidebar-left ul { list-style: none; padding: 0; }
.sidebar-left li a { 
    display: block; padding: 12px; color: var(--dark-bg); text-decoration: none;
    border-radius: 8px; transition: 0.3s; margin-bottom: 5px;
}
.sidebar-left li a:hover { background: var(--main-green); color: #fff; }

/* Карточки товаров */
.content { flex: 1; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.product-card { 
    background: #fff; border-radius: 15px; padding: 20px; text-align: center;
    transition: transform 0.3s, box-shadow 0.3s; box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.product-card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }

.photo-box { height: 180px; display: flex; align-items: center; justify-content: center; margin-bottom: 15px; }
.photo-box img { max-width: 100%; max-height: 100%; border-radius: 10px; }

.price { font-size: 1.4rem; color: var(--main-green); font-weight: bold; margin: 10px 0; }

.buy-btn { 
    background: var(--main-green); color: #fff; border: none; padding: 12px 25px; 
    border-radius: 8px; cursor: pointer; font-weight: bold; width: 100%; transition: 0.3s;
}
.buy-btn:hover { background: var(--accent); }

/* Футер */
.footer { 
    background: var(--dark-bg); color: #fff; padding: 40px; border-radius: 15px;
    display: flex; justify-content: space-between; margin-top: 30px;
}