/**
 * Course Display - Image Upload and Scheme Components
 */

/* Image Upload Area */
.c-image-upload-area {
    display: grid;
    grid-template-columns: 200px 1fr;
    grid-template-rows: auto auto;
    gap: 1rem;
    padding: 1rem;
    background: var(--color-bg-subtle, #f8f9fa);
    border-radius: 0.5rem;
}

.c-image-preview {
    grid-row: span 2;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    background: var(--color-bg-default, #fff);
    border: 2px dashed var(--color-border-default, #dee2e6);
    border-radius: 0.375rem;
    overflow: hidden;
}

.c-image-preview img {
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
}

.c-image-preview__placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted, #6c757d);
    font-size: 0.875rem;
}

.c-image-preview__placeholder svg {
    opacity: 0.5;
}

.c-image-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: flex-start;
}

.c-file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.c-image-meta {
    display: flex;
    gap: 1rem;
}

.c-image-meta .c-form-group {
    flex: 1;
    margin-bottom: 0;
}

/* Image Fieldset */
.c-image-fieldset {
    margin-bottom: 1.5rem;
}

.c-image-fieldset:last-child {
    margin-bottom: 0;
}

/* Image Scheme Grid */
.c-image-scheme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.c-image-scheme-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-default, #fff);
    border: 1px solid var(--color-border-default, #dee2e6);
    border-radius: 0.5rem;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.c-image-scheme-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.c-image-scheme-card__preview {
    height: 120px;
    background: var(--color-bg-subtle, #f8f9fa);
    display: flex;
    align-items: center;
    justify-content: center;
}

.c-image-scheme-card__preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

.c-image-scheme-card__preview .c-placeholder {
    color: var(--color-text-muted, #6c757d);
    font-size: 0.875rem;
}

.c-image-scheme-card__info {
    padding: 0.75rem;
    flex: 1;
}

.c-image-scheme-card__info h4 {
    margin: 0 0 0.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
}

.c-image-scheme-card__info p {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--color-text-muted, #6c757d);
}

.c-image-scheme-card > .c-button {
    margin: 0.75rem;
    margin-top: 0;
}

/* Loading state */
.c-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--color-text-muted, #6c757d);
}

/* Card header actions */
.c-card__header-actions {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
}