:root {
  --primary-color: #fff;
  --secondary-color: #111111;
  --accent-color: #0171D3;
  --text-color: #e5e7eb;
  --dark-gray: #1f2937;
  --border-color: #374151;
  --spacing: 1rem;
}

/* Base styles */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  padding: 1rem;
  text-align: center;
  background-color: var(--secondary-color);
  color: var(--text-color);
  max-width: 100%;
  margin: 0 auto;
  line-height: 1.6;
  min-height: 100vh;
}

#banner {
  max-width: min(520px, 90vw); /* Changed from 360vw to 90vw for better mobile scaling */
  height: auto;
  margin: 1rem 0;
}

#spinner {
  color: var(--accent-color);
}

#previewImage {
  max-width: min(150px, 80vw);
  height: auto;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

#controls {
  max-width: 800px;
  width: 95%;
  margin: 0 auto 2rem auto;
  padding: 1.5rem;
  background-color: var(--dark-gray);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

.infoLabel {
  flex: 0 0 50px;
  min-width: auto;
  font-size: 0.85rem;
  color: #9ca3af;
  text-align: right;
  margin-left: 0.5rem;
}

.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.container:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.container label {
  flex: 0 0 auto;
  text-align: left;
  min-width: 120px;
  margin-right: 0.5rem;
}

input[type="range"] {
  flex: 1 1 auto;
  width: 100%;
  margin: 0 1rem;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--accent-color);
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

input[type="range"]::-moz-range-track {
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--accent-color);
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

input[type="file"] {
  width: calc(100% - 2rem);
  padding: 1rem;
  margin: 1rem 0;
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.03);
  transition: all 0.2s ease;
}

input[type="file"]:hover {
  border-color: var(--accent-color);
  background-color: rgba(255, 255, 255, 0.05);
}

select, input[type="color"] {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--dark-gray);
  color: var(--text-color);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

footer {
  margin-top: 2rem;
  padding: 1rem;
  color: #9ca3af;
  font-size: 0.9rem;
}

/* Download button styling */
a[onclick="downloadIt()"] {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--accent-color);
  color: white;
  border-radius: 8px;
  font-weight: 500;
  margin: 1rem 0;
  transition: all 0.2s ease;
}

a[onclick="downloadIt()"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

/* Checkbox styling */
input[type="checkbox"] {
  accent-color: var(--accent-color);
  width: 16px;
  height: 16px;
}

/* Canvas responsiveness */
#result {
  max-width: 100%;
  height: auto;
}

/* Media queries for different screen sizes */
@media (max-width: 640px) {
  body {
    padding: 0.5rem;
  }

  #controls {
    padding: 1rem;
    width: calc(100% - 2rem);
  }

  .container {
    padding: 0.5rem;
  }

  a[onclick="downloadIt()"] {
    padding: 0.6rem 1.2rem;
    width: 80%;
    max-width: 300px;
  }

  select, input[type="color"] {
    width: 100%;
    margin-top: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    flex-direction: column;
    align-items: stretch;
    text-align: left;
  }

  .container label {
    margin-bottom: 0.5rem;
  }

  .infoLabel {
    text-align: left;
    margin-top: 0.25rem;
  }

  input[type="range"] {
    margin: 0.5rem 0;
  }

  #banner {
    max-width: 90%; /* Ensures banner takes up most of the screen width on mobile */
    min-width: 280px; /* Prevents banner from becoming too small */
  }
}

/* Fix for color inputs on mobile */
input[type="color"] {
  min-width: 44px;
  height: 44px;
  padding: 0;
}