/* ============================================
   QR CODE GENERATOR - TOOL-SPECIFIC STYLES
   Common styles loaded from /shared/styles/common.css
   ============================================ */

/* ============================================
   QR GRID LAYOUT
   ============================================ */

.qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

@media (max-width: 1024px) {
    .qr-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   INPUT PANEL
   ============================================ */

.input-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.type-section {
    margin-bottom: var(--space-2);
}

.section-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.type-select,
.option-select {
    width: 100%;
    padding: var(--space-3);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-base);
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
}

.type-select:focus,
.option-select:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================
   INPUT FIELDS
   ============================================ */

.input-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.input-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.text-input,
.text-field {
    width: 100%;
    padding: var(--space-3);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-base);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.text-input {
    resize: vertical;
    font-family: var(--font-mono);
}

.text-input:focus,
.text-field:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.text-input::placeholder,
.text-field::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* ============================================
   OPTIONS SECTION
   ============================================ */

.options-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.option-group {
    margin-bottom: var(--space-3);
}

.option-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border: none;
    border-radius: var(--radius-base);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary-500);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-1px);
}

.btn-large {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
}

.btn-icon {
    font-size: 1.125rem;
}

/* ============================================
   PREVIEW PANEL
   ============================================ */

.preview-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.preview-panel h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.qr-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    padding: var(--space-6);
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
}

.qr-placeholder {
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--space-3);
}

#qrcode {
    display: flex;
    align-items: center;
    justify-content: center;
}

#qrcode canvas,
#qrcode img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-base);
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */

.download-section {
    display: flex;
    gap: var(--space-3);
}

.download-section .btn {
    flex: 1;
}

/* ============================================
   FEATURE LIST & USAGE STEPS
   ============================================ */

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: var(--space-2) 0;
    color: var(--text-secondary);
}

.usage-steps {
    padding-left: var(--space-6);
}

.usage-steps li {
    padding: var(--space-2) 0;
    color: var(--text-secondary);
}

.usage-steps strong {
    color: var(--text-primary);
}

.tool-info h3 {
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .download-section {
        flex-direction: column;
    }
    
    .qr-preview {
        min-height: 300px;
        padding: var(--space-4);
    }
    
    .placeholder-icon {
        font-size: 3rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

#qrcode {
    animation: fadeIn 0.3s ease;
}