/**
 * Concept Recall History Modal Styles - Option A
 * Displays detailed concept history in modal
 */

.concept-recall-history-modal .modal__body {
    max-height: 70vh;
    overflow-y: auto;
}

.concept-history-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.concept-history-intro {
    font-size: 1rem;
    color: var(--text-secondary, #9ca3af);
    margin: 0 0 1rem 0;
    line-height: 1.6;
}

/* Concept Card */
.concept-history-card {
    background: var(--surface-1, #111827);
    border: 1px solid var(--border, #374151);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: border-color 0.2s ease;
}

.concept-history-card:hover {
    border-color: var(--accent-blue, #3b82f6);
}

/* Concept Header */
.concept-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.concept-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-blue, #3b82f6);
    margin: 0;
    flex: 1;
}

.concept-similarity-badge {
    background: var(--accent-blue, #3b82f6);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
}

/* Concept Metadata */
.concept-card-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--surface-2, #1f2937);
    border-radius: 8px;
}

.concept-card-meta .meta-item {
    display: flex;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.concept-card-meta .meta-label {
    color: var(--text-secondary, #9ca3af);
    font-weight: 500;
    min-width: 140px;
}

.concept-card-meta .meta-value {
    color: var(--text-primary, #e5e7eb);
}

/* Thread Section */
.concept-threads-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.concept-threads-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary, #e5e7eb);
    margin: 0;
}

/* Thread List */
.concept-thread-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.thread-list-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface-2, #1f2937);
    border: 1px solid var(--border, #374151);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.thread-list-item.thread-clickable {
    cursor: pointer;
}

.thread-list-item.thread-clickable:hover {
    background: var(--surface-3, #374151);
    border-color: var(--accent-blue, #3b82f6);
    transform: translateX(4px);
}

.thread-list-item.thread-unavailable {
    opacity: 0.6;
    cursor: not-allowed;
}

.thread-list-item .thread-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.thread-list-item .thread-info {
    flex: 1;
    min-width: 0; /* Allow text truncation */
}

.thread-list-item .thread-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary, #e5e7eb);
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.thread-list-item .thread-meta {
    font-size: 0.875rem;
    color: var(--text-secondary, #9ca3af);
}

.thread-list-item .thread-action {
    flex-shrink: 0;
}

.thread-list-item .btn-link-thread {
    background: var(--accent-blue, #3b82f6);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease;
}

.thread-list-item .btn-link-thread:hover {
    background: var(--accent-blue-hover, #2563eb);
}

/* Responsive */
@media (max-width: 640px) {
    .concept-history-card {
        padding: 1rem;
    }

    .concept-card-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .concept-similarity-badge {
        align-self: flex-start;
    }

    .concept-card-meta {
        padding: 0.75rem;
    }

    .concept-card-meta .meta-item {
        flex-direction: column;
        gap: 0.25rem;
    }

    .concept-card-meta .meta-label {
        min-width: auto;
    }

    .thread-list-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .thread-list-item .thread-action {
        width: 100%;
    }

    .thread-list-item .btn-link-thread {
        width: 100%;
    }
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .concept-history-card {
        background: var(--surface-1, #111827);
        border-color: var(--border, #374151);
    }

    .concept-card-meta {
        background: var(--surface-2, #1f2937);
    }

    .thread-list-item {
        background: var(--surface-2, #1f2937);
        border-color: var(--border, #374151);
    }

    .thread-list-item.thread-clickable:hover {
        background: var(--surface-3, #374151);
    }
}
