:root {
  /* الوضع النهاري - افتراضي */
  --form-bg: rgba(255, 255, 255, 0.35);
  --text-color: #222;
  --input-bg: #ffffff;
  --input-text: #222;
  --button-bg: #007BFF;
  --button-gradient-end: #0056b3;
  --button-hover: #004a99;
  --footer-color: #515151;
  --label-color: #333;
}

body.dark {
  --form-bg: rgba(255, 255, 255, 0.08);
  --text-color: #ffffff;
  --input-bg: #ffffffdd;
  --input-text: #333;
  --button-bg: #007BFF;
  --button-gradient-end: #00BCD4;
  --button-hover: #0056b3;
  --footer-color: #ccc;
  --label-color: #eee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Tajawal', sans-serif;
  background: url('../assets/airport-bg.jpg') no-repeat center center fixed;
  background-size: cover;
}

.overlay {
  background-color: rgba(156, 156, 156, 0.231);
  height: 100vh;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color 0.3s ease;
}

body.dark .overlay {
  background-color: rgba(0, 0, 0, 0.6);
}

.login-container {
  background-color: var(--form-bg);
  padding: 40px 30px;
  border-radius: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.4);
  width: 90%;
  max-width: 400px;
  text-align: center;
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.logo {
  width: 240px;
  height: auto;
  margin: -30px auto 10px;
  display: block;
}

h2 {
  margin-bottom: 30px;
  font-weight: bold;
  color: var(--text-color);
}

.form-group {
  margin-bottom: 20px;
  text-align: right;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--label-color);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #ccc;
  background-color: var(--input-bg);
  font-size: 16px;
  color: var(--input-text);
  transition: all 0.3s ease;
}

input::placeholder {
  color: #888;
}

input:focus {
  border-color: #007BFF;
  outline: none;
}

button {
  width: 100%;
  padding: 12px;
  background: linear-gradient(to right, var(--button-bg), var(--button-gradient-end));
  border: none;
  border-radius: 12px;
  color: white;
  font-weight: bold;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.3s ease;
}

button:hover {
  transform: scale(1.03);
  background-color: var(--button-hover);
}

.footer-text {
  margin-top: 25px;
  font-size: 13px;
  color: var(--footer-color);
  transition: color 0.3s ease;
}

/* ========== Responsive Enhancements ========== */
@media (max-width: 768px) {
  .login-container {
    padding: 30px 20px;
  }

  .logo {
    width: 100px;
  }

  h2 {
    font-size: 20px;
  }

  input,
  button {
    font-size: 14px;
  }
}
   .message {
      margin-top: 15px;
      padding: 10px;
      border-radius: 8px;
      text-align: center;
      font-size: 0.95rem;
      display: none;
    }

    .success-message {
      margin-top: 15px;
      background-color: #d4edda9c;
      font-weight: bold;
      border-radius: 20px;
      color: #155724;
      display: block;
    }

    .error-message {
      margin-top: 15px;
      background-color: #f8d7daa1;
      font-weight: bold;
      border-radius: 20px;
      color: #721c24;
      display: block;
    }
@media (max-width: 480px) {
  .theme-toggle-switch {
    top: 12px;
    left: 12px;
    transform: scale(0.85); /* يصغر حجمه شوي */
    z-index: 9999;
  }

  .login-container {
    margin-top: 50px; /* تبعد الفورم شوي للأسفل */
  }

  .logo {
    width: 80px;
  }

  h2 {
    font-size: 18px;
  }

  input,
  button {
    font-size: 13px;
  }
}