/* استيراد الخط */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;700&display=swap');

/* إعدادات عامة */
body {
    font-family: 'Cairo', sans-serif;
    background: #f5f7fa;
    color: #333;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    scroll-behavior: smooth;
    direction: rtl;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* تصميم الهيدر */
header {
    background: linear-gradient(135deg, #1a2a44, #00b7eb);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.btn-back {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-back:hover {
    background: #fff;
    color: #1a2a44;
}

/* تصميم المحتوى الرئيسي */
main {
    padding: 40px 20px;
    max-width: 900px;
    margin: 0 auto;
    flex-grow: 1;
    text-align: center;
}

h2 {
    color: #1a2a44;
}

ul.subject {
    list-style: none;
    padding: 0;
}

ul.subject li {
    background: linear-gradient(135deg, #4682b4, #87cefa);
    border-radius: 10px;
    padding: 15px;
    margin: 10px 0;
    text-align: center;
    transition: 0.3s;
}

ul.subject li a {
    color: #fff;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 700;
}

ul.subject li:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* تصميم الفوتر */
footer {
    background: linear-gradient(135deg, #1a2a44, #00b7eb);
    padding: 15px;
    text-align: center;
    color: #fff;
    font-size: 0.9rem;
}