/* الخط العام */
body {
    font-family: 'Tajawal', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #e6f0ff, #fdfdff);
    color: #222;
}

/* رأس الصفحة */
header {
    background: linear-gradient(90deg, #0077cc, #005c9e);
    color: white;
    text-align: center;
    padding: 40px 20px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 32px;
    font-weight: bold;
}

.subtitle {
    font-size: 18px;
    margin-top: 5px;
}

/* شريط التنقل */
nav {
    background-color: #006bb3;
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: 0.3s;
}

nav a:hover {
    color: #ffeb3b;
}

/* المحتوى الرئيسي */
.container {
    max-width: 700px;
    margin: 40px auto;
    padding: 0 20px;
    text-align: center;
}

.upload-box {
    background-color: white;
    border-radius: 16px;
    padding: 40px 20px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.05);
    transition: 0.3s;
}

.upload-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.upload-box h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.hint {
    font-size: 14px;
    color: #555;
    margin-bottom: 20px;
}

input[type="file"] {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

/* زر الرفع */
.upload-btn {
    background-color: #0077cc;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 20px;
    transition: 0.3s;
}

.upload-btn:hover {
    background-color: #005c9e;
}

/* ملاحظة */
.note {
    margin-top: 30px;
    color: #c0392b;
    font-size: 15px;
}

/* تذييل */
footer {
    background-color: #f4f4f4;
    text-align: center;
    padding: 20px;
    font-size: 14px;
    color: #555;
    margin-top: 40px;
}

/* متجاوب */
@media (max-width: 600px) {
    nav {
        flex-direction: column;
        gap: 10px;
    }

    .upload-box {
        padding: 30px 15px;
    }

    .upload-btn {
        width: 100%;
    }
}