/* ==========================================================================
   KeyPoint Learning - Activity Bookmarks & Notes Master-Detail Styles
   ========================================================================== */

/* Prevent Parent View Scroll on Bookmarks Master-Detail */
@media (min-width: 992px) {
    html.is-bookmarks-page,
    body.is-bookmarks-page {
        overflow: hidden !important;
        height: 100vh !important;
    }

    .is-bookmarks-page #page-container {
        height: 100vh !important;
        overflow: hidden !important;
    }

    .is-bookmarks-page #content.content {
        height: calc(100vh - 50px) !important;
        max-height: calc(100vh - 50px) !important;
        padding: 12px 20px 14px !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
        display: flex !important;
        flex-direction: column !important;
    }

    .kla-bookmarks-wrapper {
        flex: 1;
        min-height: 0;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        padding: 0;
        margin: 0;
    }

    .kla-bookmarks-card {
        flex: 1;
        min-height: 0;
        height: auto !important;
    }
}

.kla-bookmarks-wrapper {
    padding: 0;
}

.kla-bookmarks-page-header {
    flex-shrink: 0;
    margin-bottom: 8px;
}

.kla-bookmarks-page-title {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: #08193d !important;
    margin: 0 0 2px 0 !important;
    line-height: 1.2 !important;
}

.kla-bookmarks-page-desc {
    font-size: 12px !important;
    color: #64748b !important;
    margin: 0 !important;
    line-height: 1.3 !important;
}

.kla-bookmarks-card {
    display: flex;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    height: calc(100vh - 140px);
    min-height: 520px;
}

/* Master Sidebar (Left Column) */
.kla-bookmarks-sidebar {
    width: 360px;
    min-width: 300px;
    max-width: 400px;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    height: 100%;
}

.kla-bookmarks-sidebar-header {
    padding: 16px 18px 12px;
    border-bottom: 1px solid #f1f5f9;
    background: #ffffff;
}

.kla-bookmarks-toolbar {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.kla-bookmarks-search-box {
    position: relative;
    width: 100%;
}

.kla-bookmarks-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    pointer-events: none;
    display: flex;
    align-items: center;
}

.kla-bookmarks-search-input {
    width: 100%;
    height: 38px;
    padding: 0 32px 0 34px !important;
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 8px !important;
    font-size: 13px !important;
    color: #0f172a !important;
    transition: all 0.2s ease;
}

.kla-bookmarks-search-input:focus {
    background: #ffffff !important;
    border-color: #1f5eff !important;
    box-shadow: 0 0 0 3px rgba(31, 94, 255, 0.1) !important;
    outline: none;
}

.kla-bookmarks-search-clear {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #94a3b8;
    font-size: 16px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    display: none;
}

.kla-bookmarks-filters-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.kla-bookmarks-type-pills {
    display: inline-flex;
    background: #f1f5f9;
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
}

.kla-bookmarks-pill-btn {
    border: none;
    background: transparent;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.kla-bookmarks-pill-btn:hover {
    color: #0f172a;
}

.kla-bookmarks-pill-btn.is-active {
    background: #ffffff;
    color: #1f5eff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.kla-bookmarks-topic-select {
    height: 30px;
    font-size: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 0 28px 0 10px !important;
    background-color: #ffffff;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    color: #475569;
    max-width: 145px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.kla-bookmarks-topic-select:focus {
    border-color: #1f5eff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(31, 94, 255, 0.1);
}

/* Master Scrollable List */
.kla-bookmarks-list-wrap {
    flex: 1;
    overflow-y: auto;
    position: relative;
}

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

.kla-bookmark-item {
    padding: 12px 16px;
    border-bottom: 1px solid #f1f5f9;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-decoration: none !important;
}

.kla-bookmark-item:hover {
    background: #f8fafc;
}

.kla-bookmark-item.is-active {
    background: #eff6ff !important;
    border-left: 3.5px solid #1f5eff;
}

.kla-bookmark-item-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.kla-bookmark-item-icon.type-lesson {
    background: #eff6ff;
    color: #1f5eff;
}

.kla-bookmark-item-icon.type-question {
    background: #fef3c7;
    color: #d97706;
}

.kla-bookmark-item-body {
    flex: 1;
    min-width: 0;
}

.kla-bookmark-item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 2px;
}

.kla-bookmark-item-title {
    font-size: 13.5px;
    font-weight: 600;
    color: #0f172a;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
}

.kla-bookmark-item-time {
    font-size: 11px;
    color: #94a3b8;
    white-space: nowrap;
}

.kla-bookmark-item-desc {
    font-size: 12px;
    color: #64748b;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kla-bookmark-item-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.kla-bookmark-badge-type {
    font-size: 10.5px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.kla-bookmark-badge-type.type-lesson {
    background: #eff6ff;
    color: #1e40af;
}

.kla-bookmark-badge-type.type-question {
    background: #fef3c7;
    color: #92400e;
}

.kla-bookmark-topic-tag {
    font-size: 11px;
    color: #64748b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Sidebar Footer (Pagination & Counts) */
.kla-bookmarks-sidebar-footer {
    padding: 8px 14px;
    border-top: 1px solid #f1f5f9;
    background: #fafbfc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: #64748b;
    flex-shrink: 0;
    min-height: 42px;
}

.kla-bookmarks-count-text {
    font-weight: 600;
    color: #0f172a;
}

.kla-pagination-single-text {
    font-size: 11px;
    color: #94a3b8;
    font-weight: 500;
}

.kla-bookmarks-pagination-nav {
    display: flex;
    align-items: center;
}

.kla-bookmarks-pagination-nav .pagination {
    margin: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 3px !important;
    padding: 0 !important;
    list-style: none !important;
}

.kla-bookmarks-pagination-nav .page-item .page-link {
    min-width: 24px !important;
    height: 24px !important;
    padding: 0 5px !important;
    font-size: 11.5px !important;
    font-weight: 500 !important;
    border-radius: 5px !important;
    border: 1px solid #e2e8f0 !important;
    color: #475569 !important;
    background: #ffffff !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1 !important;
    text-decoration: none !important;
    transition: all 0.15s ease !important;
    cursor: pointer !important;
}

.kla-bookmarks-pagination-nav .page-item.active .page-link {
    background: #1f5eff !important;
    border-color: #1f5eff !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    pointer-events: none !important;
    box-shadow: 0 1px 2px rgba(31, 94, 255, 0.2) !important;
}

.kla-bookmarks-pagination-nav .page-item.disabled .page-link {
    opacity: 0.35 !important;
    pointer-events: none !important;
    background: #f8fafc !important;
    border-color: #e2e8f0 !important;
    color: #94a3b8 !important;
}

.kla-bookmarks-pagination-nav .page-item:not(.active):not(.disabled) .page-link:hover {
    background: #eff6ff !important;
    border-color: #bfdbfe !important;
    color: #1d4ed8 !important;
}

/* Detail Preview (Right Column) */
.kla-bookmarks-preview {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    height: 100%;
    overflow: hidden;
}

/* Sleek Compact Detail Header */
.kla-preview-header {
    padding: 12px 20px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    background: #ffffff;
    min-height: 58px;
    flex-wrap: wrap;
}

.kla-preview-header-main {
    flex: 1;
    min-width: 220px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.kla-preview-meta-row {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 11.5px;
    color: #64748b;
    line-height: 1.2;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.kla-preview-type-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 9999px;
    flex-shrink: 0;
    letter-spacing: 0.01em;
    line-height: 1.2;
}

.kla-preview-type-pill.type-lesson {
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #dbeafe;
}

.kla-preview-type-pill.type-question {
    background: #f5f3ff;
    color: #6d28d9;
    border: 1px solid #ede9fe;
}

.kla-meta-bullet {
    color: #cbd5e1;
    font-size: 12px;
    flex-shrink: 0;
    user-select: none;
}

.kla-preview-breadcrumbs-wrap {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.kla-crumb-item {
    color: #64748b;
    font-size: 11.5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
    display: inline-block;
    vertical-align: middle;
}

.kla-crumb-item.font-weight-600 {
    color: #334155;
    font-weight: 600;
}

.kla-crumb-sep {
    color: #94a3b8;
    font-size: 13px;
    user-select: none;
    flex-shrink: 0;
    line-height: 1;
}

.kla-preview-title {
    font-size: 15.5px !important;
    font-weight: 700;
    color: #08193d;
    margin: 0;
    line-height: 1.4;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    max-width: 100%;
}

.kla-preview-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.kla-btn-open-curriculum {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #1f5eff;
    color: #ffffff !important;
    border: 1px solid #1f5eff;
    border-radius: 9999px !important;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.15s ease;
    box-shadow: 0 1px 2px rgba(31, 94, 255, 0.15);
    white-space: nowrap;
    height: 30px;
}

.kla-btn-open-curriculum:hover {
    background: #174ed8;
    border-color: #174ed8;
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(31, 94, 255, 0.25);
}

.kla-btn-delete-bookmark {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #ffffff;
    color: #dc2626;
    border: 1px solid #fee2e2;
    border-radius: 9999px !important;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    height: 30px;
}

.kla-btn-delete-bookmark:hover {
    background: #fff1f2;
    border-color: #fca5a5;
    color: #b91c1c;
}

/* Smooth Detail Selection Animation */
.kla-preview-fade-in {
    animation: klaPreviewFadeIn 0.18s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes klaPreviewFadeIn {
    0% {
        opacity: 0.35;
        transform: translateY(3px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Preview Content Body */
.kla-preview-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #fafbfc;
}

.kla-preview-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.kla-preview-video-wrap {
    position: relative;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    background: #0f172a;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

.kla-preview-video-wrap video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.kla-preview-question-box {
    font-size: 15px;
    line-height: 1.65;
    color: #1e293b;
    margin-bottom: 20px;
}

.kla-preview-explanation-box {
    margin-top: 20px;
    padding: 16px 18px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 13.5px;
    line-height: 1.6;
    color: #475569;
}

.kla-preview-explanation-title {
    font-size: 13px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Empty State */
.kla-preview-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 40px;
    text-align: center;
}

.kla-preview-empty-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: #eff6ff;
    color: #1f5eff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.kla-preview-empty-title {
    font-size: 16px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 6px;
}

.kla-preview-empty-desc {
    font-size: 13.5px;
    color: #64748b;
    max-width: 320px;
    line-height: 1.5;
    margin: 0;
}

/* Notes Table Styling */
.kla-notes-table-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.kla-notes-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.kla-notes-table th {
    background: #08193d !important;
    color: #ffffff !important;
    font-size: 13.5px;
    font-weight: 600;
    padding: 12px 16px;
    border: none;
    white-space: nowrap;
}

.kla-notes-table td {
    padding: 12px 16px;
    font-size: 13.5px;
    color: #334155;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

.kla-notes-table tr:hover td {
    background: #f8fafc;
}

.kla-note-time-badge {
    background: #eff6ff;
    color: #1e40af;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    font-family: monospace;
}

.kla-note-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: #1f5eff;
    font-weight: 600;
    font-size: 13px;
    text-decoration: none !important;
}

.kla-note-link-btn:hover {
    color: #174ed8;
    text-decoration: underline !important;
}

/* --------------------------------------------------------------------------
   1:1 Quiz Question Card & Options Stack (Agents Practice Quiz Baseline)
   -------------------------------------------------------------------------- */
.kla-quiz-source-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 10px;
    padding: 10px 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #1e40af;
}

.kla-quiz-source-link {
    font-size: 13px;
    font-weight: 600;
    color: #1f5eff !important;
    text-decoration: none !important;
    transition: all 0.15s ease;
}

.kla-quiz-source-link:hover {
    color: #174ed8 !important;
    text-decoration: underline !important;
}

.kla-quiz-question-card {
    border: 1px solid #e2e8f0 !important;
    border-radius: 14px !important;
    background: #ffffff !important;
    box-shadow: 0 4px 16px -2px rgba(8, 25, 61, 0.06), 0 2px 6px -1px rgba(8, 25, 61, 0.04) !important;
    margin-bottom: 18px !important;
    overflow: hidden !important;
}

.kla-quiz-card-header {
    background: #f8fafc !important;
    border-bottom: 1px solid #f1f5f9 !important;
    padding: 10px 20px !important;
    min-height: 44px;
}

.kla-quiz-ref-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.94);
    color: #475569;
    border: 1px solid #e2e8f0;
    font-size: 11.5px;
    font-weight: 600;
    padding: 2.5px 9px;
    border-radius: 6px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
    line-height: 1.2;
}

.kla-review-answer-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    padding: 3px 10px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
}

.kla-review-answer-pill-user {
    background: #f0f1f3;
    color: #5b6472;
    border: 1px solid #d7dbe1;
}

.kla-quiz-question-body {
    padding: 22px 26px !important;
    background: #ffffff !important;
}

.kla-quiz-question-body .question-text {
    font-family: "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
    font-size: 16px !important;
    font-weight: 500 !important;
    line-height: 1.6 !important;
    color: #08193d !important;
}

.kla-quiz-question-body .question-text p {
    margin-bottom: 0.6rem !important;
    color: #08193d !important;
}

.kla-quiz-question-body .question-text p:last-child {
    margin-bottom: 0 !important;
}

.kla-quiz-question-options {
    padding: 0 20px 20px;
}

.kla-quiz-answers-stack {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 8px;
    margin-bottom: 0 !important;
    padding: 0 !important;
}

.quiz-answer-list-wrapper {
    display: block !important;
    width: 100%;
}

.kla-quiz-option-item.question-answer-item {
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 10px 16px !important;
    background: #ffffff !important;
    border: 1.5px solid #e2e8f0 !important;
    border-radius: 10px !important;
    outline: none !important;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.kla-quiz-option-letter-badge {
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13.5px;
    margin-right: 14px;
    background: #f1f5f9;
    color: #475569;
    flex-shrink: 0;
}

.kla-quiz-option-content {
    min-width: 0;
}

.label-answer.quiz-answer-text {
    font-size: 15px !important;
    line-height: 1.5 !important;
    color: #1e293b !important;
    margin-bottom: 0 !important;
    cursor: default !important;
}

.kla-quiz-option-item.is-correct-answer {
    background: #dcfce7 !important;
    border-color: #86efac !important;
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.08) !important;
}

.kla-quiz-option-item.is-correct-answer .kla-quiz-option-letter-badge {
    background: #16a34a !important;
    color: #ffffff !important;
}

.kla-quiz-option-item.is-correct-answer .label-answer {
    color: #14532d !important;
    font-weight: 600 !important;
}

.kla-quiz-option-item.is-incorrect-answer {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
}

.kla-quiz-status-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.kla-quiz-status-icon-correct {
    stroke: #2e7d4f;
}

/* --------------------------------------------------------------------------
   1:1 Solution & Explanation Card
   -------------------------------------------------------------------------- */
.kla-quiz-explanation-card {
    border: 1px solid #e2e8f0 !important;
    border-radius: 12px !important;
    background: #ffffff !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02) !important;
    margin-bottom: 20px !important;
    overflow: hidden;
    width: 100%;
}

.kla-quiz-solution-content {
    display: block;
    opacity: 1;
    overflow: visible;
    pointer-events: auto;
}

.kla-quiz-solution-body {
    display: flex;
    flex-direction: column;
    padding: 20px 24px;
}

.kla-quiz-solution-header {
    align-items: center;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    min-height: 48px;
    padding: 12px 24px;
    width: 100%;
}

.kla-quiz-feedback-status-pill {
    align-items: center;
    border-radius: 9999px;
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    gap: 7px;
    letter-spacing: 0.04em;
    line-height: 1.35;
    padding: 4px 14px;
}

.kla-quiz-feedback-status-pill.is-incorrect {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
}

.kla-quiz-feedback-status-pill.is-correct {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #15803d;
}

.kla-quiz-feedback-status-icon {
    align-items: center;
    display: inline-flex;
    flex-shrink: 0;
    justify-content: center;
}

.kla-quiz-solution-correct-target {
    align-items: center;
    display: inline-flex;
    gap: 8px;
    margin-left: auto;
}

.kla-quiz-solution-target-label {
    color: #0f172a;
    font-size: 14.5px;
    font-weight: 700;
}

.kla-quiz-correct-letter-badge {
    align-items: center;
    background: #166534;
    border-radius: 50%;
    color: #ffffff;
    display: inline-flex;
    font-size: 13px;
    font-weight: 700;
    height: 24px;
    justify-content: center;
    line-height: 1;
    width: 24px;
}

.kla-quiz-feedback-divider {
    border: 0;
    border-top: 1px solid #f1f5f9;
    margin: 16px 0 16px;
    width: 100%;
}

.kla-quiz-solution-heading {
    color: #0f172a;
    font-size: 14.5px;
    font-weight: 700;
    margin: 0 0 8px;
}

.kla-quiz-solution-explanation {
    color: #334155;
    font-size: 14.5px;
    line-height: 1.65;
    margin-left: 0;
    max-width: none;
    min-width: 0;
    overflow-x: auto;
    width: 100%;
}

.question-explanation {
    font-size: 14.5px;
    line-height: 1.65;
    color: #334155;
}

/* Source Quiz Button */
.kla-btn-source-quiz {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #eff6ff;
    color: #1d4ed8 !important;
    border: 1px solid #bfdbfe;
    border-radius: 9999px !important;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.15s ease;
    height: 30px;
}

.kla-btn-source-quiz:hover {
    background: #dbeafe;
    border-color: #93c5fd;
    color: #1e40af !important;
    transform: translateY(-1px);
}

/* Note Preview Specifics */
.kla-preview-note-box {
    background: #fffbeb;
    border: 1px solid #fef3c7;
    border-radius: 10px;
    padding: 18px 20px;
    font-size: 14.5px;
    line-height: 1.6;
    color: #1e293b;
    margin-bottom: 20px;
}

.kla-preview-note-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px dashed #fde68a;
}

.kla-preview-note-label {
    font-size: 12.5px;
    font-weight: 700;
    color: #92400e;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.kla-preview-video-time-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #ffffff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 11.5px;
    font-weight: 600;
    font-family: monospace;
    text-decoration: none !important;
    transition: all 0.15s ease;
}

.kla-preview-video-time-btn:hover {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
}

/* Polymorphic Badges */
.kla-bookmark-badge-type.type-note,
.kla-preview-type-pill.type-note {
    background: #fffbeb !important;
    color: #b45309 !important;
    border-color: #fde68a !important;
}

.kla-bookmark-item-icon.type-note {
    background: #fffbeb !important;
    color: #d97706 !important;
}

/* Responsive / Screen Rules */
@media (max-width: 1200px) {
    .kla-preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 18px;
    }

    .kla-preview-header-main {
        width: 100%;
        min-width: 0;
    }

    .kla-preview-header-actions {
        width: 100%;
        justify-content: flex-start;
        gap: 8px;
        flex-wrap: wrap;
    }
}

@media (max-width: 991px) {
    .kla-bookmarks-card {
        flex-direction: column;
        height: auto !important;
        min-height: 0;
    }

    .kla-bookmarks-sidebar {
        width: 100%;
        max-width: 100%;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
        height: 420px;
    }

    .kla-bookmarks-preview {
        height: auto;
        min-height: 500px;
    }

    .kla-preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 16px;
    }

    .kla-preview-header-main {
        width: 100%;
        min-width: 0;
    }

    .kla-preview-header-actions {
        width: 100%;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    .kla-bookmarks-sidebar {
        height: 360px;
    }

    .kla-preview-header-actions {
        flex-wrap: wrap;
        width: 100%;
    }

    .kla-btn-open-curriculum,
    .kla-btn-delete-bookmark,
    .kla-btn-source-quiz {
        font-size: 11.5px;
        padding: 5px 12px;
        height: 28px;
    }

    .kla-preview-title {
        font-size: 14px !important;
    }

    .kla-preview-body {
        padding: 12px;
    }
}