/**
 * Admin Form Components
 * 
 * Form controls, filters, and input elements for admin interfaces
 * Extended from base form styles with admin-specific enhancements
 */

/* Form Groups */
.admin-form-group {
    margin-bottom: var(--space-lg);
}

.admin-form-group__label {
    display: block;
    font-weight: 500;
    color: var(--text);
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
}

.admin-form-group__label--required::after {
    content: ' *';
    color: var(--error);
}

.admin-form-group__help {
    color: var(--muted);
    font-size: 0.75rem;
    margin-top: var(--space-sm);
}

.admin-form-group__error {
    color: var(--error);
    font-size: 0.75rem;
    margin-top: var(--space-sm);
}

/* Input Fields */
.admin-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg);
    color: var(--text);
    font-size: 0.875rem;
    transition: all var(--duration-default) var(--easing-default);
}

.admin-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px oklch(from var(--accent) l c h / 0.1);
}

.admin-input:invalid {
    border-color: var(--error);
}

.admin-input:invalid:focus {
    box-shadow: 0 0 0 3px oklch(from var(--error) l c h / 0.1);
}

.admin-input--small {
    padding: 0.25rem var(--space-sm);
    font-size: 0.75rem;
}

.admin-input--large {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
}

/* Select Fields */
.admin-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M6 9l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--space-sm) center;
    background-size: 1rem 1rem;
    padding-right: calc(var(--space-md) + 1.5rem);
}

/* Textarea */
.admin-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

/* Search Fields */
.admin-search {
    position: relative;
    display: inline-block;
}

.admin-search__input {
    padding-left: calc(var(--space-md) + 1.5rem);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3ccircle cx='11' cy='11' r='8'/%3e%3cpath d='m21 21-4.35-4.35'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: left var(--space-sm) center;
    background-size: 1rem 1rem;
}

.admin-search__clear {
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    border-radius: var(--radius-md);
}

.admin-search__clear:hover {
    background: oklch(from var(--border) l c h / 0.5);
}

/* Filter Bar */
.admin-filter-bar {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.admin-filter-bar__group {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.admin-filter-bar__label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.admin-filter-bar__input {
    min-width: 120px;
}

.admin-filter-bar__actions {
    margin-left: auto;
    display: flex;
    gap: var(--space-sm);
}

/* Button Groups */
.admin-button-group {
    display: inline-flex;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

.admin-button-group .admin-button {
    border-radius: 0;
    border: none;
    border-right: 1px solid var(--border);
}

.admin-button-group .admin-button:last-child {
    border-right: none;
}

.admin-button-group .admin-button.active {
    background: var(--accent);
    color: var(--bg);
}

/* Toggle Switches */
.admin-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.admin-toggle__input {
    opacity: 0;
    width: 0;
    height: 0;
}

.admin-toggle__slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border);
    transition: var(--duration-default);
    border-radius: 24px;
}

.admin-toggle__slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: var(--bg);
    transition: var(--duration-default);
    border-radius: 50%;
}

.admin-toggle__input:checked + .admin-toggle__slider {
    background: var(--accent);
}

.admin-toggle__input:checked + .admin-toggle__slider:before {
    transform: translateX(20px);
}

/* Checkbox/Radio Groups */
.admin-checkbox-group,
.admin-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.admin-checkbox-group--horizontal,
.admin-radio-group--horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.admin-checkbox,
.admin-radio {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.admin-checkbox__input,
.admin-radio__input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent);
}

.admin-checkbox__label,
.admin-radio__label {
    font-size: 0.875rem;
    color: var(--text);
}

/* Form Actions */
.admin-form-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
    margin-top: var(--space-lg);
}

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

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

.admin-form-actions--space-between {
    justify-content: space-between;
}

/* Drag & Drop Upload Zone */
.admin-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    background: var(--bg-alt);
    transition: all var(--duration-default) var(--easing-default);
    cursor: pointer;
}

.admin-upload-zone:hover {
    border-color: var(--accent);
    background: oklch(from var(--accent) l c h / 0.05);
}

.admin-upload-zone--dragover {
    border-color: var(--accent);
    background: oklch(from var(--accent) l c h / 0.1);
    transform: scale(1.02);
}

/* Progress Bar */
.admin-upload-progress {
    margin-bottom: var(--space-lg);
}

.admin-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-alt);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.admin-progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width var(--duration-default) var(--easing-default);
}

.admin-progress-text {
    font-size: 0.875rem;
    color: var(--muted);
    text-align: center;
}

/* File Preview */
.admin-file-preview {
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.admin-file-preview__image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 2px 8px oklch(from var(--text) l c h / 0.1);
}

.admin-file-preview__info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

/* Validation States */
.admin-input--error,
.admin-select--error,
.admin-textarea--error {
    border-color: var(--error);
}

.admin-input--error:focus,
.admin-select--error:focus,
.admin-textarea--error:focus {
    border-color: var(--error);
    box-shadow: 0 0 0 3px oklch(from var(--error) l c h / 0.1);
}

.admin-input--success,
.admin-select--success,
.admin-textarea--success {
    border-color: var(--success, #4caf50);
}

.admin-input--success:focus,
.admin-select--success:focus,
.admin-textarea--success:focus {
    border-color: var(--success, #4caf50);
    box-shadow: 0 0 0 3px oklch(from var(--success, #4caf50) l c h / 0.1);
}

.admin-field--error .admin-form-label {
    color: var(--error);
}

.admin-field--success .admin-form-label {
    color: var(--success, #4caf50);
}

/* Loading Spinner */
.admin-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: admin-spin 0.6s linear infinite;
}

@keyframes admin-spin {
    to {
        transform: rotate(360deg);
    }
}

.admin-spinner--large {
    width: 2rem;
    height: 2rem;
    border-width: 3px;
}

.admin-spinner--small {
    width: 0.75rem;
    height: 0.75rem;
    border-width: 1.5px;
}

/* Toast Notifications */
.admin-toast {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    min-width: 300px;
    max-width: 500px;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px oklch(from var(--text) l c h / 0.15);
    z-index: 1000;
    animation: admin-toast-slide-in 0.3s var(--easing-default);
}

@keyframes admin-toast-slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.admin-toast--success {
    background: var(--success, #4caf50);
    color: white;
}

.admin-toast--error {
    background: var(--error);
    color: white;
}

.admin-toast--info {
    background: var(--accent);
    color: white;
}

.admin-toast--warning {
    background: var(--warning, #ff9800);
    color: white;
}

.admin-toast__message {
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0;
}

.admin-toast__close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    opacity: 0.8;
    padding: 0.25rem;
}

.admin-toast__close:hover {
    opacity: 1;
}

/* Alert Styles */
.admin-alert {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    border-left: 4px solid;
}

.admin-alert--error {
    background: oklch(from var(--error) l c h / 0.1);
    border-color: var(--error);
    color: oklch(from var(--error) l c h / 0.9);
}

.admin-alert--success {
    background: oklch(from var(--success, #4caf50) l c h / 0.1);
    border-color: var(--success, #4caf50);
    color: oklch(from var(--success, #4caf50) l c h / 0.9);
}

.admin-alert--info {
    background: oklch(from var(--accent) l c h / 0.1);
    border-color: var(--accent);
    color: oklch(from var(--accent) l c h / 0.9);
}

.admin-alert--warning {
    background: oklch(from var(--warning, #ff9800) l c h / 0.1);
    border-color: var(--warning, #ff9800);
    color: oklch(from var(--warning, #ff9800) l c h / 0.9);
}

.admin-error-list {
    margin: var(--space-sm) 0 0 var(--space-lg);
    padding: 0;
    list-style: disc;
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    margin-left: var(--space-sm);
}

.badge--info {
    background: oklch(from var(--accent) l c h / 0.1);
    color: var(--accent);
}

.badge--success {
    background: oklch(from var(--success, #4caf50) l c h / 0.1);
    color: var(--success, #4caf50);
}

.badge--error {
    background: oklch(from var(--error) l c h / 0.1);
    color: var(--error);
}

.badge--warning {
    background: oklch(from var(--warning, #ff9800) l c h / 0.1);
    color: var(--warning, #ff9800);
}

/* Form Sections */
.admin-form-sections {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.admin-form-section {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border);
}

.admin-form-section__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 var(--space-lg) 0;
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--border);
}

/* Responsive */
@media (max-width: 768px) {
    .admin-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .admin-filter-bar__group {
        justify-content: space-between;
    }
    
    .admin-filter-bar__actions {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
    }
    
    .admin-form-actions {
        flex-direction: column;
    }
    
    .admin-button-group {
        width: 100%;
    }
    
    .admin-checkbox-group--horizontal,
    .admin-radio-group--horizontal {
        flex-direction: column;
    }

    .admin-toast {
        right: var(--space-sm);
        left: var(--space-sm);
        min-width: auto;
        max-width: none;
    }

    .admin-upload-zone {
        padding: 2rem 1rem;
    }
}