.qr-section {
  padding: 60px 0;
  text-align: center;
}

.qr-card {
  background: var(--card-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 32px;
  max-width: 1024px;
  margin: 28px auto;
  box-shadow: var(--shadow-medium);
  text-align: left;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.qr-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 32px;
  align-items: flex-start;
}

@media (max-width: 980px) {
  .qr-grid {
    grid-template-columns: 1fr;
  }
}

.preview-wrap {
  background: var(--preview-bg, var(--card-bg)); /* Use card-bg as fallback */
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow-light);
  position: sticky;
  top: 100px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.preview {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  background: var(--preview-inner-bg, #ffffff); /* Use a variable for inner preview background */
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

.preview::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background-image: radial-gradient(var(--preview-grid-dot, rgba(15, 23, 42, 0.04)) 1px, transparent 1px);
  background-size: 12px 12px;
  pointer-events: none;
}

/* Dark theme overrides for QR generator */
[data-theme="dark"] {
    --preview-inner-bg: #1a202c; /* Darker background for QR preview */
    --preview-grid-dot: rgba(255, 255, 255, 0.08); /* Lighter dots for dark theme */
}

.preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
}

.toolbar .btn {
  padding: 10px 16px;
  font-size: 0.9rem;
}

.pill {
  padding: 8px 12px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--bg-start);
  color: var(--text-muted);
  font-size: 13px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.controls-stack {
  display: grid;
  gap: 20px;
}

.control-group {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow-light);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.control-group h3 {
  margin: 0 0 16px;
  font-size: 1.1rem;
  color: var(--text-primary);
}

label {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

input[type="text"],
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: var(--input-bg, var(--bg-start));
  color: var(--text-primary);
  outline: none;
  transition: all 0.3s ease;
  font-size: 1rem;
}

input[type="text"]:focus,
select:focus {
  border-color: var(--accent-light);
  box-shadow: 0 0 0 4px var(--accent-focus-ring, rgba(0, 120, 255, 0.1));
}

.color-input-wrap {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: var(--input-bg, var(--bg-start));
  padding: 4px;
  display: flex;
  align-items: center;
  height: 48px;
  transition: all 0.3s ease;
}

.color-input-wrap:focus-within {
  border-color: var(--accent-light);
  box-shadow: 0 0 0 4px var(--accent-focus-ring, rgba(0, 120, 255, 0.1));
}

input[type="color"] {
  width: 100%;
  height: 38px;
  border: none;
  border-radius: 8px;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 8px;
}

.row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.col {
  flex: 1;
  min-width: 150px;
}

.small {
  font-size: 13px;
  color: var(--text-muted);
}

.thumbs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.chip {
  background: var(--bg-start);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.chip:hover {
  background: var(--bg-end);
  color: var(--text-primary);
  border-color: var(--chip-hover-border, rgba(0, 0, 0, 0.1));
  transform: translateY(-1px);
}

.chip.active {
    background: var(--accent-light);
    color: white;
    border-color: var(--accent-light);
    font-weight: 500;
}

/* Responsive Adjustments for QR Generator Page */
@media (max-width: 980px) {
    .qr-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .qr-card {
        padding: 25px;
        margin: 20px auto;
    }
    .preview-wrap {
        position: static; /* Remove sticky on smaller screens */
        margin-bottom: 25px;
    }
    .toolbar {
        flex-direction: column;
        gap: 15px;
    }
    .toolbar .btn {
        width: 100%;
    }
    .control-group {
        padding: 15px;
    }
    .control-group h3 {
        font-size: 1rem;
        margin-bottom: 12px;
    }
    label {
        font-size: 0.9rem;
    }
    input[type="text"],
    select {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    .color-input-wrap {
        height: 42px;
    }
    input[type="color"] {
        height: 32px;
    }
    .row {
        gap: 10px;
    }
    .col {
        min-width: unset;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .qr-section {
        padding: 40px 0;
    }
    .qr-card {
        padding: 20px;
        margin: 15px auto;
    }
    .preview-wrap {
        padding: 12px;
    }
    .preview {
        padding: 8px;
    }
    .toolbar .btn {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    .pill {
        font-size: 12px;
        padding: 6px 10px;
    }
    .control-group {
        padding: 12px;
    }
    .control-group h3 {
        font-size: 0.95rem;
    }
    label {
        font-size: 0.85rem;
    }
    input[type="text"],
    select {
        padding: 8px 10px;
        font-size: 0.9rem;
    }
}