/* Main Style */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f4f4;
  color: #333;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.main-header {
  background-color: #111;
  padding: 1em 0;
  color: #fff;
  text-align: center;
}
.main-header nav a {
  color: #bbb;
  margin: 0 15px;
  text-decoration: none;
  transition: color 0.3s;
}
.main-header nav a:hover {
  color: #fff;
}

/* Form */
.form-section {
  padding: 40px 20px;
  text-align: center;
}
.form-container {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.form-container input {
  padding: 12px;
  width: 300px;
  border-radius: 8px;
  border: 1px solid #ccc;
}
.form-container button {
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  background: #222;
  color: white;
  transition: background 0.3s;
}
.form-container button:hover {
  background: #444;
}

/* Loader */
#loader {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.spinner {
  border: 6px solid #f3f3f3;
  border-top: 6px solid #4CAF50;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.hidden {
  display: none;
}
.spinner {
  border: 6px solid #f3f3f3;
  border-top: 6px solid #4CAF50;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}


/* Footer */
.main-footer {
  background-color: #111;
  color: #aaa;
  text-align: center;
  padding: 20px 10px;
  margin-top: 50px;
}

/* Responsive */
@media (max-width: 600px) {
  .form-container input {
    width: 100%;
  }
  .form-container {
    flex-direction: column;
  }
}