/* Base styles */
body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

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

/* Button styles */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  margin: 5px;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
  text-align: center;
  min-width: 120px;
}

.btn:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.btn-primary {
  background-color: #28a745;
}

.btn-primary:hover {
  background-color: #218838;
  box-shadow: 0 4px 8px rgba(40, 167, 69, 0.3);
}

.btn-primary:active {
  background-color: #ff0432;
  transform: translateY(2px);
  box-shadow: 0 2px 4px rgba(40, 167, 69, 0.2);
}

/* Typography */
h1 {
  color: #2c3e50;
  margin: 30px 0 20px 0;
  font-size: 2.5rem;
  font-weight: 300;
}

p {
  margin: 15px 0;
  font-size: 1.1rem;
}

/* Tablet styles (768px - 1024px) */
@media screen and (max-width: 1024px) {
  .container {
    padding: 15px;
    text-align: center;
  }

  h1 {
    font-size: 2.2rem;
  }

  .btn {
    padding: 14px 28px;
    margin: 8px;
    font-size: 17px;
  }

  p {
    font-size: 1.05rem;
  }
}

/* Mobile styles (up to 768px) */
@media screen and (max-width: 768px) {
  .container {
    padding: 10px;
    text-align: center;
  }

  h1 {
    font-size: 1.8rem;
    margin: 20px 0 15px 0;
  }

  .btn {
    display: block;
    width: calc(100% - 20px);
    max-width: 300px;
    margin: 10px auto;
    padding: 16px 20px;
    font-size: 18px;
  }

  p {
    font-size: 1rem;
    margin: 12px 0;
    padding: 0 10px;
  }
}

/* Small mobile styles (up to 480px) */
@media screen and (max-width: 480px) {
  .container {
    padding: 8px;
    text-align: center;
  }

  h1 {
    font-size: 1.5rem;
    margin: 15px 0 10px 0;
  }

  .btn {
    width: calc(100% - 16px);
    margin: 8px auto;
    padding: 14px 16px;
    font-size: 16px;
  }

  p {
    font-size: 0.95rem;
    margin: 10px 0;
    padding: 0 5px;
  }
}

/* High DPI screens */
@media screen and (-webkit-min-device-pixel-ratio: 2),
  screen and (min-resolution: 192dpi) {
  .btn {
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* Landscape orientation adjustments */
@media screen and (max-width: 768px) and (orientation: landscape) {
  .container {
    padding: 5px 15px;
  }

  h1 {
    font-size: 1.6rem;
    margin: 10px 0;
  }

  .btn {
    display: inline-block;
    width: auto;
    min-width: 140px;
    margin: 5px 8px;
    padding: 12px 20px;
  }
}