:root {
  --pico-font-family: 'Outfit', system-ui, -apple-system, sans-serif;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);

  --pico-primary: #6366f1;
  --pico-primary-background: #4f46e5;
  --pico-primary-hover: #4338ca;
  --pico-primary-inverse: #ffffff;

  --pico-border-radius: 12px;
}

body {
  background: linear-gradient(135deg, #e0eafc, #cfdef3);
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
}

main.container {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 24px;
  padding: 2.5rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
  max-width: 900px;
}

header {
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
}

header h1 {
  margin: 0;
  text-align: center;
  font-weight: 700;
  background: linear-gradient(to right, #111827, #4b5563);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

canvas {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--glass-border);
  border-radius: var(--pico-border-radius);
  background: white;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  animation: qrAppear 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) backwards;
}

canvas:hover {
  transform: scale(1.02);
}

@keyframes qrAppear {
  0% {
    transform: scale(0.8);
    opacity: 0;
    filter: blur(5px);
  }

  100% {
    transform: scale(1);
    opacity: 1;
    filter: blur(0);
  }
}

.validation-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--pico-border-radius);
  display: block;
  margin: 0 auto;
  animation: dropIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) backwards;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1));
}

@keyframes dropIn {
  from {
    transform: translateY(-20px) scale(0.9);
    opacity: 0;
  }

  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

#status {
  text-align: center;
  margin-top: 15px;
  font-family: 'Outfit', monospace;
  font-weight: 500;
  min-height: 1.5em;
  opacity: 0.9;
}

article {
  background: rgba(255, 255, 255, 0.4);
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Custom layout tweaks */
.setting {
  margin-bottom: var(--pico-spacing);
}

.setting-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.setting-header label {
  margin-bottom: 0;
}

.auto-checkbox {
  font-weight: 500;
  font-size: 0.9em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auto-checkbox input[type='checkbox'] {
  margin: 0;
}

#type-div {
  display: grid;
  grid-template-columns: repeat(5, max-content);
  gap: 8px;
  justify-items: center;
  max-width: fit-content;
}

#error-div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#type-div input[type='radio'],
#error-div input[type='radio'] {
  display: none;
}

/* Style labels as clickable badges/buttons */
#type-div label,
#error-div label {
  cursor: pointer;
  padding: 6px 12px;
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  background-color: var(--pico-card-background-color);
  color: var(--pico-color);
  font-size: 0.85em;
  font-weight: 500;
  margin: 0;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Make size buttons uniformly sized circles */
#type-div label {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Selected state for radio labels */
#type-div input[type='radio']:checked+label,
#error-div input[type='radio']:checked+label {
  background-color: var(--pico-primary-background);
  color: white;
  border-color: var(--pico-primary-background);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--pico-primary-background), transparent 50%);
  transform: scale(1.05) translateY(-2px);
}

#type-div label:hover:not(.invalid-option),
#error-div label:hover:not(.invalid-option) {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--pico-primary-background);
}

/* Invalid option style */
#type-div .invalid-option,
#error-div .invalid-option {
  border-color: var(--pico-del-color);
  color: var(--pico-del-color);
  background-color: color-mix(in srgb, var(--pico-del-color), transparent 85%);
  opacity: 0.6;
}

#type-div .invalid-option:hover,
#error-div .invalid-option:hover {
  opacity: 0.8;
  background-color: color-mix(in srgb, var(--pico-del-color), transparent 80%);
  cursor: not-allowed;
  transform: none;
}

/* Buttons */
button {
  border-radius: var(--pico-border-radius);
  font-weight: 600;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

button:not(:disabled):hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.2), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

button:not(:disabled):active {
  transform: translateY(0) scale(0.98);
}

/* Input Styles */
input[type="text"] {
  border-radius: var(--pico-border-radius);
  background: var(--pico-form-element-background-color);
  border: 1px solid var(--glass-border);
  transition: all 0.3s ease;
  font-weight: 500;
}

input[type="text"]:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--pico-primary-background), transparent 70%);
}

@keyframes input-pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--pico-primary-background), transparent 60%);
  }

  70% {
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--pico-primary-background), transparent 100%);
  }

  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--pico-primary-background), transparent 100%);
  }
}

#input {
  animation: input-pulse 2.5s infinite;
}

#input:focus {
  animation: none;
}

/* Footer */
footer {
  text-align: center;
  margin-top: var(--pico-spacing);
  padding-bottom: var(--pico-spacing);
  opacity: 0.9;
}

.tech-stack {
  margin-bottom: var(--pico-spacing);
  font-size: 0.9em;
  color: var(--pico-muted-color);
}

.tech-stack p {
  margin-bottom: 0.4rem;
}

.tech-stack a {
  font-weight: 600;
  transition: color 0.2s ease;
}

.tech-stack a:hover {
  color: var(--pico-primary);
  text-decoration: none;
}

.build-info {
  display: block;
  margin-top: 2rem;
  font-size: 0.75em;
  color: var(--pico-muted-color);
  background: transparent;
  border: none;
}

.build-info a {
  color: inherit;
  text-decoration: underline;
}

/* Grid Gap tweaks */
.grid {
  gap: 2rem;
}