.qr-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 991px) {
    .qr-layout {
        grid-template-columns: 1fr;
    }
}

.controls-column {
    padding: 1.5rem;
}

.preview-column {
    position: sticky;
    top: 2rem;
}

.preview-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.dynamic-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.dynamic-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.separator {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0;
}

/* Color Pickers Custom Look */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px;
}

.color-picker {
    width: 38px;
    height: 38px;
    padding: 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background: none;
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-hex {
    margin-left: 0.75rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
    text-transform: uppercase;
}

/* Logo Upload Area */
.logo-upload {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background-color: var(--code-bg);
    min-height: 100px;
}

.logo-upload:hover {
    border-color: var(--primary-color);
    background-color: rgba(62, 168, 255, 0.05);
}

.logo-upload.has-image {
    border-style: solid;
    padding: 0.5rem;
}

.logo-upload svg {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.logo-upload img {
    max-height: 80px;
    max-width: 100%;
    object-fit: contain;
}

/* QR Canvas Container */
.qr-canvas-wrapper {
    background-color: white; /* Ensure it stands out against dark theme */
    padding: 1rem;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 300px;
    aspect-ratio: 1;
    margin: 0 auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    overflow: hidden; /* Prevent spill over */
}

/* Ensure the generated SVG scales to fit its container, regardless of internal 1000px height */
.qr-canvas-wrapper svg {
    width: 100% !important;
    height: auto !important;
    max-height: 100%;
    display: block;
}

/* Form Controls */
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(236, 24, 137, 0.1);
}

textarea.form-control {
    resize: vertical;
}

.form-group {
    margin-bottom: 1rem;
}

.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }