/* ============================================
   CRM Forms - Стили форм
   ============================================ */

/* ============================================
   БАЗОВЫЕ СТИЛИ ФОРМ
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-label.optional {
    color: var(--text-secondary);
}

.form-label.optional::after {
    content: ' (необязательно)';
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.form-hint {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.form-error {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--danger);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-success {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--success);
}

/* ============================================
   ПОЛЯ ВВОДА
   ============================================ */
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
    border-color: var(--text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background: var(--bg-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

/* Размеры полей */
.form-input-sm,
.form-select-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8125rem;
}

.form-input-lg,
.form-select-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

/* Состояния полей */
.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: var(--danger);
}

.form-input.error:focus,
.form-textarea.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px rgba(248, 81, 73, 0.15);
}

.form-input.success,
.form-textarea.success,
.form-select.success {
    border-color: var(--success);
}

.form-input.success:focus,
.form-textarea.success:focus,
.form-select.success:focus {
    box-shadow: 0 0 0 3px rgba(63, 185, 80, 0.15);
}

/* ============================================
   TEXTAREA
   ============================================ */
.form-textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
}

.form-textarea.auto-resize {
    min-height: auto;
    overflow: hidden;
}

/* ============================================
   SELECT
   ============================================ */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b949e' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: var(--spacing-xl);
}

.form-select[multiple] {
    background-image: none;
    padding-right: var(--spacing-md);
    min-height: 100px;
}

@media (max-width: 768px) {
    .form-select[multiple] {
        min-height: 120px;
        font-size: 16px;
    }
}

/* ============================================
   ЧЕКБОКСЫ И РАДИОКНОПКИ
   ============================================ */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--primary);
}

.form-check-input[type="checkbox"] {
    border-radius: 4px;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.form-check-input:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-check-description {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Переключатель (Toggle/Switch) */
.form-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.form-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.form-switch .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 24px;
    transition: all var(--transition-fast);
}

.form-switch .slider::before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.form-switch input:checked + .slider {
    background: var(--primary);
    border-color: var(--primary);
}

.form-switch input:checked + .slider::before {
    transform: translateX(20px);
    background: var(--text-inverse);
}

.form-switch input:focus + .slider {
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.form-switch input:disabled + .slider {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   ГРУППЫ ПОЛЕЙ
   ============================================ */
.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.form-row-2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-row-3 {
    grid-template-columns: repeat(3, 1fr);
}

.form-row-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .form-row-2,
    .form-row-3,
    .form-row-4 {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ИНПУТ ГРУППЫ
   ============================================ */
.input-group {
    display: flex;
    align-items: stretch;
}

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

.color-input-group input[type="color"] {
    width: 60px;
    height: 38px;
    padding: 2px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
}

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

@media (max-width: 768px) {
    .color-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .color-input-group input[type="color"] {
        width: 100%;
        height: 44px;
    }
    
    .color-input-group input[type="text"] {
        width: 100%;
    }
    
    /* Увеличенные поля для удобного нажатия на мобильных */
    .form-input,
    .form-select,
    .form-textarea {
        min-height: 44px;
        font-size: 16px; /* Предотвращает зум на iOS */
    }
    
    /* Увеличенные чекбоксы */
    .form-check-input {
        width: 20px;
        height: 20px;
    }
    
    /* Кнопки во всю ширину на мобильных */
    .form-actions .btn {
        flex: 1;
        min-width: 120px;
    }
}

.input-group .form-input,
.input-group .form-select {
    flex: 1;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group .btn:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .form-input:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .form-input:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group-append {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-left: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.input-group-prepend {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   ПОИСК
   ============================================ */
.search-input {
    position: relative;
}

.search-input .form-input {
    padding-left: var(--spacing-xl);
}

.search-input .search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-input .clear-button {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.search-input .clear-button:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ============================================
   FILE UPLOAD
   ============================================ */
.file-upload {
    position: relative;
    display: inline-block;
}

.file-upload input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px dashed var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-upload-label:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Drag & Drop зона */
.file-drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    background: var(--bg-secondary);
    border: 2px dashed var(--border-primary);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-drop-zone:hover,
.file-drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(88, 166, 255, 0.05);
}

.file-drop-zone .icon {
    font-size: 3rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.file-drop-zone p {
    margin: 0;
    color: var(--text-secondary);
}

.file-drop-zone small {
    color: var(--text-tertiary);
}

/* ============================================
   ФОРМА СЕТКА
   ============================================ */
.form-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.form-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================
   ВАЛИДАЦИЯ
   ============================================ */
.form-group.has-error .form-label {
    color: var(--danger);
}

.form-group.has-success .form-label {
    color: var(--success);
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea,
.form-group.has-error .form-select {
    border-color: var(--danger);
}

.form-group.has-success .form-input,
.form-group.has-success .form-textarea,
.form-group.has-success .form-select {
    border-color: var(--success);
}

/* ============================================
   ФОРМА ДЕЙСТВИЯ
   ============================================ */
.form-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--border-primary);
}

.form-actions-left {
    justify-content: flex-start;
}

.form-actions-center {
    justify-content: center;
}

.form-actions-right {
    justify-content: flex-end;
}

/* ============================================
   ЛЕГЕНДА
   ============================================ */
.form-legend {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-primary);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

fieldset {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

fieldset:last-child {
    margin-bottom: 0;
}