/* === الأساسيات === */
body {
  font-family: "Cairo", Arial, sans-serif;
  background: #f9fdfb;
  margin: 0;
  padding: 0;
  color: #222;
  text-align: center;
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #3fa46a, #2a9d8f);
  color: #fff;
  padding: 20px;
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
}

main {
  margin: 30px auto;
  max-width: 600px;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

footer {
  margin-top: 40px;
  padding: 15px;
  background: #f0f9f5;
  font-size: 0.9rem;
  color: #555;
}

/* === حقول الإدخال === */
input[type="text"] {
  width: 90%;
  max-width: 500px;
  padding: 12px;
  margin: 10px auto;
  border: 2px solid #3fa46a;
  border-radius: 8px;
  font-size: 1rem;
  text-align: center;
  display: block;
}

/* === الأزرار === */
button, a {
  display: inline-block;
  margin: 8px 6px;
  padding: 12px 20px;
  background: #3fa46a;
  color: #fff;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: 0.3s ease;
}

button:hover, a:hover {
  background: #2a9d8f;
}

/* === النتائج === */
#result, #currencyResult {
  margin-top: 20px;
  font-size: 1.2rem;
  font-weight: bold;
  color: #2a9d8f;
  padding: 15px;
  background: #f0f9f5;
  border-radius: 8px;
  min-height: 40px;
}

/* === الروابط العامة === */
a {
  font-weight: bold;
}

a.back-link {
  display: block;
  margin-top: 25px;
  font-size: 1rem;
  color: #2a9d8f;
}

/* === استجابة الشاشات (Responsive Design) === */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.4rem;
  }

  main {
    margin: 15px;
    padding: 15px;
  }

  input[type="text"] {
    width: 100%;
    font-size: 0.95rem;
  }

  button, a {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    margin: 8px 0;
  }

  #result, #currencyResult {
    font-size: 1rem;
    padding: 12px;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.2rem;
  }

  main {
    margin: 10px;
    padding: 12px;
  }

  button, a {
    font-size: 0.9rem;
    padding: 12px;
  }

  input[type="text"] {
    font-size: 0.9rem;
  }
}