/* ===== Конструктор калькуляторов ===== */

.calculator-builder {
    padding: var(--spacing-lg) 0;
}

/* Табы */
.builder-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 10px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-full);
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.tab-btn:hover {
    border-color: var(--primary-400);
    color: var(--primary-700);
    background: var(--primary-50);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    border-color: transparent;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

/* Макет конструктора */
.builder-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 20px;
    min-height: 600px;
}

/* Боковая панель */
.builder-sidebar {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-section {
    margin-bottom: 30px;
}

.sidebar-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-200);
}

.field-palette {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.palette-item {
    padding: 12px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--gray-700);
    width: 100%;
    text-align: left;
}

.palette-item:hover {
    background: var(--primary-50);
    border-color: var(--primary-400);
    transform: translateX(4px);
}

.palette-item ion-icon {
    color: var(--primary-600);
    font-size: 1.3rem;
}

/* Панель свойств */
#field-properties-panel {
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    margin-top: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 5px;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control[readonly] {
    background: var(--gray-100);
    cursor: not-allowed;
}

/* Канвас */
.builder-canvas {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.canvas-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.canvas-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-800);
}

.canvas-actions {
    display: flex;
    gap: 10px;
}

.canvas-area {
    padding: 20px;
    min-height: 500px;
    background: repeating-linear-gradient(45deg, var(--gray-50) 0px, var(--gray-50) 20px, var(--white) 20px, var(--white) 40px);
}

.canvas-placeholder {
    text-align: center;
    color: var(--gray-500);
    padding: 60px 20px;
    font-size: 1rem;
    border: 2px dashed var(--gray-300);
    border-radius: var(--border-radius-lg);
}

/* Поля на канвасе */
.canvas-field {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    margin-bottom: 15px;
    transition: var(--transition);
    cursor: pointer;
}

.canvas-field:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
}

.canvas-field.selected {
    border-color: var(--primary-600);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.canvas-field-header {
    padding: 12px 15px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.field-drag-handle {
    color: var(--gray-500);
    font-size: 1.2rem;
    cursor: grab;
    user-select: none;
}

.field-drag-handle:active {
    cursor: grabbing;
}

.field-label {
    font-weight: 600;
    color: var(--gray-800);
    flex: 1;
}

.field-type-badge {
    font-size: 0.7rem;
    padding: 3px 8px;
    background: var(--gray-200);
    border-radius: var(--border-radius-full);
    color: var(--gray-700);
    text-transform: uppercase;
}

.field-edit-btn {
    background: none;
    border: none;
    color: var(--gray-600);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition);
}

.field-edit-btn:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

.canvas-field-body {
    padding: 15px;
}

.canvas-field.dragging {
    opacity: 0.5;
}

/* Визуализатор */
.visualizer-container {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.visualizer-header {
    text-align: center;
    margin-bottom: 30px;
}

.visualizer-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 5px;
}

.visualizer-form {
    max-width: 600px;
    margin: 0 auto;
}

.visualizer-field {
    margin-bottom: 20px;
}

.visualizer-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--gray-700);
}

.visualizer-result {
    padding: 15px;
    background: var(--primary-50);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--primary-200);
    text-align: center;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-700);
}

.visualizer-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.visualizer-placeholder ion-icon {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: 20px;
}

/* Шаблоны */
.presets-container {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 30px;
}

.presets-header {
    text-align: center;
    margin-bottom: 30px;
}

.presets-categories {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.category-filter {
    padding: 8px 16px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.category-filter.active,
.category-filter:hover {
    background: var(--primary-600);
    color: white;
    border-color: transparent;
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.preset-card {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.preset-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-300);
}

.preset-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-100);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-700);
    flex-shrink: 0;
}

.preset-content {
    flex: 1;
}

.preset-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--gray-800);
}

.preset-description {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 10px;
}

/* Сохранение и загрузка */
.save-load-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.save-section, .load-section {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
}

.save-section h2, .load-section h2 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--gray-800);
}

.save-preview {
    margin: 20px 0;
    padding: 15px;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
}

.save-fields-list {
    margin-top: 10px;
}

.save-field-item {
    padding: 8px 12px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
}

.field-name {
    font-weight: 500;
    color: var(--gray-800);
}

.field-type {
    color: var(--gray-500);
    font-size: 0.85rem;
}

.btn-large {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
}

.save-result {
    margin-top: 20px;
    padding: 20px;
    background: var(--success-50);
    border: 1px solid var(--success-500);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.code-display {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 5px;
    color: var(--success-700);
    background: white;
    padding: 15px;
    border-radius: var(--border-radius-lg);
    margin: 15px 0;
    border: 2px dashed var(--success-500);
}

.load-form {
    margin: 20px 0;
}

.load-note {
    margin-top: 30px;
    padding: 15px;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
}

.alert-error {
    background: var(--error-50);
    border: 1px solid var(--error-500);
    color: var(--error-700);
    padding: 12px;
    border-radius: var(--border-radius-md);
    margin-bottom: 15px;
}

/* Адаптивность */
@media (max-width: 992px) {
    .builder-layout {
        grid-template-columns: 1fr;
    }
    
    .builder-sidebar {
        position: static;
    }
    
    .save-load-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .builder-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
    
    .presets-grid {
        grid-template-columns: 1fr;
    }
    
    .canvas-header {
        flex-direction: column;
        gap: 10px;
        align-items: start;
    }
}

/* Стили для отображения ID поля */
.field-id-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding: 8px 12px;
    background: var(--gray-50);
    border-radius: var(--border-radius-md);
    border: 1px dashed var(--gray-300);
    font-size: 0.85rem;
}

.field-id-label {
    color: var(--gray-600);
    font-weight: 500;
}

.field-id-code {
    background: var(--gray-800);
    color: var(--primary-300);
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    flex: 1;
    overflow-x: auto;
    white-space: nowrap;
    border: 1px solid var(--gray-700);
}

.field-id-copy {
    background: none;
    border: none;
    color: var(--gray-600);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.field-id-copy:hover {
    background: var(--gray-200);
    color: var(--primary-600);
    transform: scale(1.1);
}

/* Анимация для уведомления */
@keyframes slideIn {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Обновляем стили для тела поля, чтобы добавить отступы */
.canvas-field-body {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Стили для поля-результата */
.result-display {
    padding: 10px;
    background: var(--primary-50);
    border-radius: var(--border-radius-md);
    text-align: center;
    color: var(--primary-700);
}

/* Подсказка при наведении на ID */
.field-id-code {
    position: relative;
    cursor: help;
}

.field-id-code:hover::after {
    content: 'Используйте этот ID в формулах';
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--gray-800);
    color: white;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 10;
    margin-bottom: 5px;
}

#copy-prop-id {
    font-size: 0.8rem;
    padding: 4px 10px;
    margin-left: 10px;
    vertical-align: middle;
}

/* Стили для сетки калькулятора */
.visualizer-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -10px;
}

.visualizer-field {
    padding: 10px;
    box-sizing: border-box;
}

.visualizer-field label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--gray-700);
}

/* Индикатор ширины в конструкторе */
.field-width-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    background: var(--primary-100);
    border-radius: var(--border-radius-full);
    color: var(--primary-700);
    margin-left: 5px;
}

/* Превью ширины в свойствах */
.width-selector {
    display: flex;
    align-items: center;
    gap: 10px;
}

.width-selector select {
    flex: 1;
}

.width-preview {
    width: 60px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.width-preview-bar {
    transition: width 0.2s ease;
}

/* Сохранение ширины в превью */
.save-field-item .field-width {
    font-size: 0.8rem;
    color: var(--primary-600);
    background: var(--primary-50);
    padding: 2px 6px;
    border-radius: var(--border-radius-full);
    margin-left: 8px;
}

/* Стили для сетки визуализатора */
.visualizer-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -10px;
}

.visualizer-field {
    padding: 10px;
    box-sizing: border-box;
}

.visualizer-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.visualizer-field .form-control,
.visualizer-field .form-checkbox,
.visualizer-field select {
    width: 100%;
}

.visualizer-result {
    background: var(--primary-50);
    border: 1px solid var(--primary-200);
    border-radius: var(--border-radius-md);
    padding: 12px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-700);
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-value {
    font-size: 1.2rem;
}

/* Стили для пустого состояния */
.visualizer-placeholder {
    text-align: center;
    padding: 60px 20px;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    border: 2px dashed var(--gray-300);
}

.placeholder-actions {
    margin-top: 30px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Стили для чекбокса */
.form-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    margin: 5px 0;
}

.calculators-directory {
    padding: 60px 0;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.directory-header {
    text-align: center;
    margin-bottom: 40px;
}

.directory-header h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--gray-900);
}

.directory-header p {
    font-size: 1.1rem;
    color: var(--gray-600);
}

.directory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.directory-category {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 25px;
    box-shadow: var(--shadow-sm);
}

.category-title {
    margin: 0 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-100);
    color: var(--primary-700);
    font-size: 1.2rem;
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-list li {
    margin-bottom: 10px;
}

.calculator-link {
    display: flex;
    align-items: center;
    padding: 10px;
    text-decoration: none;
    color: var(--gray-700);
    border-radius: var(--border-radius-md);
    transition: background 0.2s, transform 0.2s;
}

.calculator-link:hover {
    background: var(--gray-50);
    transform: translateX(5px);
}

.link-icon {
    font-size: 1.4rem;
    margin-right: 12px;
    min-width: 30px;
    text-align: center;
}

.link-title {
    flex: 1;
    font-weight: 500;
}

.link-arrow {
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    color: var(--primary-500);
}

.calculator-link:hover .link-arrow {
    opacity: 1;
    transform: translateX(5px);
}

.directory-empty {
    text-align: center;
    padding: 40px;
    color: var(--gray-500);
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .directory-grid {
        grid-template-columns: 1fr;
    }
}