:root {
    --primary: #00d4ff; 
    --dark-bg: #0a0a0a;
    --card-bg: #141414;
    --text-color: #ffffff;
    --border-color: #333333;
}

body.light-mode {
    --dark-bg: #f4f4f4;
    --card-bg: #ffffff;
    --text-color: #333333;
    --border-color: #cccccc;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-color);
    font-family: 'Segoe UI', Roboto, sans-serif;
    margin: 0; padding: 0;
    transition: background-color 0.4s ease, color 0.4s ease;
}

.header { 
    display: flex; align-items: center; padding: 20px; 
    background: var(--card-bg); border-bottom: 1px solid var(--border-color);
}

.logo img {
    width: 60px; height: 60px; border-radius: 50%;
    margin-right: 20px; transition: transform 0.5s;
}

.logo img:hover { transform: rotate(360deg); }

.header h1 { color: var(--primary); font-size: 2rem; text-transform: uppercase; margin: 0; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.container { display: flex; justify-content: center; gap: 30px; padding: 40px; flex-wrap: wrap; }

.product-card {
    background: var(--card-bg); border: 1px solid var(--border-color);
    padding: 20px; border-radius: 20px; width: 300px; text-align: center;
    animation: fadeIn 0.8s ease forwards; transition: transform 0.1s ease;
}

/* الأنيميشن عند الضغط */
.product-card:active { transform: scale(0.95); border-color: var(--primary); }

.product-card img { width: 100%; height: 200px; object-fit: cover; border-radius: 15px; }

.btn-order {
    background: transparent; border: 2px solid var(--primary); color: var(--primary);
    padding: 10px 20px; border-radius: 50px; font-weight: bold;
    cursor: pointer; margin-top: 15px; transition: 0.3s;
}
.btn-order:hover { background: var(--primary); color: #000; }

.toggle-btn {
    position: fixed; top: 20px; right: 20px; padding: 10px 20px;
    background: var(--primary); color: #000; border: none;
    border-radius: 30px; cursor: pointer; font-weight: bold;
    z-index: 1000;
}