.qr-generator {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: stretch;
    padding: var(--spacing-xl) 0;
    background: radial-gradient(circle at 100% 0%, rgba(99, 102, 241, 0.02) 0%, transparent 50%);
}

.generator-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
    min-height: 600px;
}

.generator-form {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--gray-400) var(--gray-100);
}

.generator-form::-webkit-scrollbar {
    width: 6px;
}

.generator-form::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--border-radius-full);
}

.generator-form::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--border-radius-full);
}

.generator-form::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

.generator-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.9375rem;
}

.form-group label i {
    font-size: 1.125rem;
    color: var(--primary-500);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

textarea, input[type="text"], select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: var(--transition);
    background: var(--white);
}

textarea:hover, input:hover, select:hover {
    border-color: var(--gray-400);
}

textarea:focus, input:focus, select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: var(--shadow-glow);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.color-input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.color-input-group input[type="color"] {
    width: 50px;
    height: 48px;
    padding: 4px;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    background: var(--white);
    flex-shrink: 0;
}

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

.color-input-group input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-input-group input[type="text"] {
    flex: 1;
    min-width: 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    color: var(--gray-700);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-600);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.file-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
}

.file-input-button {
    padding: 0.875rem 1.75rem;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--gray-700);
    white-space: nowrap;
}

.file-input-button i {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.file-input-button:hover {
    background: var(--gray-200);
    border-color: var(--gray-400);
}

.file-input-button:hover i {
    color: var(--primary-600);
}

.file-input-name {
    color: var(--gray-600);
    font-size: 0.875rem;
    word-break: break-all;
    flex: 1;
    min-width: 0;
}

.logo-preview {
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs);
    background: var(--gray-50);
    border-radius: var(--border-radius-md);
    flex-wrap: wrap;
}

.logo-preview img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    padding: 6px;
    background: var(--white);
}

.remove-logo {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--gray-200);
    background: var(--white);
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--gray-600);
    flex-shrink: 0;
}

.remove-logo:hover {
    background: var(--error-50);
    border-color: var(--error-500);
    color: var(--error-500);
    transform: rotate(90deg);
}

.form-actions {
    margin-top: var(--spacing-lg);
}

.form-actions .btn {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
}

.preview-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 100px;
    height: fit-content;
    display: flex;
    flex-direction: column;
}

.preview-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(to right, var(--white), var(--gray-50));
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.preview-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-800);
    margin: 0;
}

.preview-header h2 i {
    color: var(--primary-500);
    font-size: 1.25rem;
}

.preview-content {
    padding: var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    min-height: 380px;
    flex: 1;
}

#qr-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

#qr-image {
    max-width: 100%;
    max-height: 400px;
    width: auto;
    height: auto;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    object-fit: contain;
}

#qr-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.preview-actions {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    background: var(--white);
    flex-wrap: wrap;
}

.preview-actions .btn {
    flex: 1 1 auto;
    padding: 0.875rem;
    min-width: 140px;
}

.preview-actions .btn i {
    font-size: 1.125rem;
}

.qr-status {
    padding: 0.5rem 1.25rem;
    border-radius: var(--border-radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.qr-status i {
    font-size: 1rem;
}

.qr-status.success {
    background: var(--success-50);
    color: var(--success-500);
}

.qr-status.error {
    background: var(--error-50);
    color: var(--error-500);
}

.qr-status.loading {
    background: #e3f2fd;
    color: #0a3b5e;
}

.qr-status.info {
    background: var(--primary-50);
    color: var(--primary-700);
}

.qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    width: 100%;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-radius: var(--border-radius-md);
    color: var(--gray-500);
    font-size: 0.9375rem;
    gap: var(--spacing-sm);
    border: 2px dashed var(--gray-300);
    text-align: center;
    padding: var(--spacing-lg);
}

.qr-placeholder i {
    font-size: 3rem;
    color: var(--gray-400);
}

#logo-size {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--primary-600);
    height: 6px;
    border-radius: var(--border-radius-full);
}

#logo-size::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 2px solid var(--primary-600);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

#logo-size::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 2px solid var(--primary-600);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition);
}

#logo-size::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-600);
}

#logo-size::-moz-range-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-600);
}

#logo-size-value {
    display: inline-block;
    margin-left: 0.75rem;
    font-weight: 600;
    color: var(--primary-700);
    background: var(--primary-50);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: 0.8125rem;
}

/* Desktop Large */
@media (min-width: 1440px) {
    .generator-grid {
        gap: calc(var(--spacing-xl) * 1.5);
    }
    
    .preview-content {
        min-height: 450px;
    }
    
    #qr-image {
        max-height: 450px;
    }
}

/* Desktop Medium */
@media (max-width: 1200px) {
    .generator-grid {
        gap: var(--spacing-lg);
    }
    
    .generator-form,
    .preview-card {
        padding: var(--spacing-lg);
    }
}

/* Tablet Landscape */
@media (max-width: 992px) {
    .qr-generator {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .generator-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        min-height: auto;
    }
    
    .preview-card {
        position: static;
    }
    
    .generator-form {
        overflow-y: visible;
        height: auto;
        max-height: none;
    }
    
    .preview-content {
        min-height: 350px;
    }
    
    .page-title {
        font-size: 2.25rem;
    }
    
    .qr-status {
        white-space: normal;
        text-align: center;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    .qr-generator .container {
        padding: 0 var(--spacing-md);
    }
    
    .generator-form {
        padding: var(--spacing-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .preview-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .preview-header h2 {
        width: 100%;
    }
    
    .qr-status {
        width: 100%;
        justify-content: center;
    }
    
    .preview-actions {
        flex-direction: column;
    }
    
    .preview-actions .btn {
        width: 100%;
    }
    
    .file-input-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .file-input-button {
        width: 100%;
        justify-content: center;
    }
    
    .file-input-name {
        width: 100%;
        text-align: center;
    }
    
    .color-input-group {
        flex-wrap: wrap;
    }
    
    .color-input-group input[type="color"] {
        width: 100%;
        height: 50px;
    }
}

/* Mobile Large */
@media (max-width: 576px) {
    .qr-generator {
        padding: var(--spacing-md) 0;
    }
    
    .qr-generator .container {
        padding: 0 var(--spacing-sm);
    }
    
    .page-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .page-description {
        font-size: 0.9375rem;
    }
    
    .generator-form {
        padding: var(--spacing-md);
    }
    
    .form-group label {
        font-size: 0.875rem;
    }
    
    textarea, input[type="text"], select {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
    
    .preview-content {
        padding: var(--spacing-md);
        min-height: 300px;
    }
    
    .preview-actions {
        padding: var(--spacing-md);
    }
    
    .preview-actions .btn {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
    
    .qr-placeholder {
        min-height: 250px;
        padding: var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .qr-placeholder i {
        font-size: 2.5rem;
    }
    
    .logo-preview {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .logo-preview img {
        width: 40px;
        height: 40px;
    }
    
    .remove-logo {
        width: 36px;
        height: 36px;
    }
    
    #logo-size-value {
        display: block;
        margin: 0.5rem 0 0;
        text-align: center;
    }
}

/* Mobile Small */
@media (max-width: 375px) {
    .page-title {
        font-size: 1.5rem;
    }
    
    .generator-form {
        padding: var(--spacing-sm);
    }
    
    .form-group {
        margin-bottom: var(--spacing-sm);
    }
    
    .preview-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .preview-header h2 {
        font-size: 1.125rem;
    }
    
    .preview-content {
        padding: var(--spacing-sm);
        min-height: 250px;
    }
    
    .preview-actions {
        padding: var(--spacing-sm);
    }
    
    .preview-actions .btn {
        min-width: auto;
    }
    
    .qr-status {
        padding: 0.375rem 1rem;
        font-size: 0.75rem;
    }
    
    .file-input-button {
        padding: 0.75rem 1rem;
        font-size: 0.8125rem;
    }
    
    .color-input-group input[type="text"] {
        font-size: 0.8125rem;
    }
}

/* Landscape Mode */
@media (max-height: 700px) and (orientation: landscape) {
    .qr-generator {
        min-height: auto;
    }
    
    .generator-grid {
        min-height: auto;
    }
    
    .generator-form {
        overflow-y: auto;
    }
}

/* Touch Devices */
@media (hover: none) and (pointer: coarse) {
    .form-group label,
    .checkbox-label,
    .file-input-button,
    .remove-logo,
    .preview-actions .btn {
        cursor: default;
        -webkit-tap-highlight-color: transparent;
    }
    
    input, select, textarea {
        font-size: 16px !important;
    }
    
    .file-input-button:active {
        background: var(--gray-300);
        transform: scale(0.98);
    }
}

/* High-resolution screens */
@media (min-resolution: 192dpi) {
    .qr-generator {
        background: radial-gradient(circle at 100% 0%, rgba(99, 102, 241, 0.03) 0%, transparent 50%);
    }
}

/* Print styles */
@media print {
    .qr-generator {
        min-height: auto;
        padding: 0;
        background: none;
    }
    
    .generator-form,
    .preview-actions,
    .qr-status {
        display: none;
    }
    
    .preview-card {
        box-shadow: none;
        border: 1px solid #000;
        page-break-inside: avoid;
    }
    
    #qr-image {
        max-height: 300px;
    }
}

/* Стили для вкладок выбора типа центрального элемента */
.center-type-tabs {
    display: flex;
    gap: 0;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--gray-50);
    padding: 4px;
}

.center-tab {
    flex: 1;
    padding: 0.625rem 1rem;
    border: none;
    background: transparent;
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-radius: calc(var(--border-radius-lg) - 4px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.center-tab::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.6;
    transition: opacity 0.2s;
    flex-shrink: 0;
}

.center-tab[data-tab="logo"]::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E");
}

.center-tab[data-tab="icon"]::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42'/%3E%3C/svg%3E");
}

.center-tab.active {
    background: var(--white);
    color: var(--primary-600);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    font-weight: 600;
}

.center-tab.active::before {
    opacity: 1;
}

.center-tab:hover:not(.active) {
    background: var(--white);
    color: var(--gray-800);
}

.center-tab:hover:not(.active)::before {
    opacity: 0.8;
}

.center-tab:active {
    transform: scale(0.97);
}

/* Анимация переключения */
.center-content {
    animation: fadeSlideIn 0.3s ease;
}

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

/* Адаптивность для табов */
@media (max-width: 768px) {
    .center-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
    
    .center-tab::before {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 576px) {
    .center-type-tabs {
        margin-bottom: var(--spacing-md);
    }
    
    .center-tab {
        padding: 0.5rem;
        font-size: 0.75rem;
        gap: 4px;
    }
    
    .center-tab::before {
        width: 14px;
        height: 14px;
    }
}

/* Стили для иконок */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
    max-height: 250px;
    overflow-y: auto;
    padding: 12px;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    background: var(--gray-50);
    scrollbar-width: thin;
    scrollbar-color: var(--gray-400) var(--gray-100);
}

.icon-grid::-webkit-scrollbar {
    width: 4px;
}

.icon-grid::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 2px;
}

.icon-grid::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 2px;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 4px;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    aspect-ratio: 1;
    min-height: 65px;
    background: white;
    user-select: none;
}

.icon-item:hover {
    border-color: var(--primary-300);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.icon-item.selected {
    background: var(--primary-50);
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    transform: translateY(-1px);
}

.icon-preview {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
    flex-shrink: 0;
}

.icon-preview svg {
    width: 32px;
    height: 32px;
    fill: #666;
}

.icon-item.selected .icon-preview svg {
    fill: var(--primary-600);
}

.icon-loading {
    font-size: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.icon-item span {
    font-size: 9px;
    color: var(--gray-500);
    text-align: center;
    line-height: 1.2;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-transform: capitalize;
}

#icon-search {
    margin-bottom: 12px;
}

/* Адаптивность */
@media (max-width: 768px) {
    .icon-grid {
        grid-template-columns: repeat(4, 1fr);
        max-height: 200px;
        gap: 6px;
        padding: 8px;
    }
    
    .icon-item {
        padding: 6px 2px;
        min-height: 55px;
    }
    
    .icon-preview svg {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 576px) {
    .icon-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .icon-item {
        min-height: 48px;
    }
    
    .icon-preview {
        width: 28px;
        height: 28px;
    }
    
    .icon-preview svg {
        width: 24px;
        height: 24px;
    }
    
    .icon-item span {
        font-size: 8px;
    }
}