/* ==============================================
   라이브 강의 페이지 스타일 (Redesign 2026)
   reference: page-live-template.html
   ============================================== */

/* ── 메인 컨테이너 ── */
.live-page-wrap {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 var(--px);
}

/* ── Fade-in 애니메이션 ── */
@keyframes liveFadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.live-fade-up {
    animation: liveFadeUp 0.5s ease-out forwards;
}

.live-fade-up-1 { animation-delay: 0.05s; opacity: 0; }
.live-fade-up-2 { animation-delay: 0.1s; opacity: 0; }
.live-fade-up-3 { animation-delay: 0.15s; opacity: 0; }
.live-fade-up-4 { animation-delay: 0.2s; opacity: 0; }

/* ── Hero Section ── */
.live-hero {
    padding: var(--space-xl) 0 var(--space-lg);
}

/* Breadcrumb */
.live-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-sm);
    color: var(--gray-400);
    margin-bottom: var(--space-lg);
}

.live-breadcrumb a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.live-breadcrumb a:hover {
    color: var(--primary);
}

.live-breadcrumb .sep {
    font-size: 10px;
}

.live-breadcrumb .current {
    color: var(--gray-600);
}

/* 배지 */
.live-badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-xs);
    font-weight: 700;
}

.live-badge--replay {
    background: rgba(33, 115, 70, 0.1);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.live-badge--replay .pulse-dot {
    position: relative;
    display: inline-flex;
    width: 6px;
    height: 6px;
}

.live-badge--replay .pulse-dot::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--primary);
    animation: pulse-ring 1.5s ease-out infinite;
    opacity: 0.75;
}

.live-badge--replay .pulse-dot::after {
    content: '';
    position: relative;
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.75; }
    100% { transform: scale(2.2); opacity: 0; }
}

.live-badge--category {
    background: #eff6ff;
    color: #1d4ed8;
}

.live-badge--difficulty {
    background: #fffbeb;
    color: #b45309;
}

.live-badge--difficulty.beginner,
.live-badge--difficulty.입문 {
    background: #ecfdf5;
    color: #047857;
}

.live-badge--difficulty.intermediate,
.live-badge--difficulty.중급 {
    background: #fffbeb;
    color: #b45309;
}

.live-badge--difficulty.advanced,
.live-badge--difficulty.고급 {
    background: #fef2f2;
    color: #b91c1c;
}

.live-badge--premium {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: #fff;
}

.live-badge--duration {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* 제목 */
.live-hero h1 {
    font-size: clamp(1.5rem, 3.5vw, 2.4rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--gray-800);
    letter-spacing: -0.02em;
    margin: 0 0 var(--space-lg);
}

/* 강사 + 액션 Row */
.live-hero-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* 강사 정보 (Hero 내) */
.live-instructor-inline {
    display: flex;
    align-items: center;
    gap: var(--space-nm);
}

.live-instructor-inline img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 0 2px rgba(33, 115, 70, 0.15), 0 0 0 4px #fff;
    flex-shrink: 0;
}

.live-instructor-meta {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.live-instructor-name {
    font-weight: 700;
    font-size: var(--font-sm);
    color: var(--gray-800);
}

.live-instructor-role {
    font-size: var(--font-xs);
    color: var(--gray-500);
}

.live-instructor-divider {
    color: var(--gray-300);
    margin: 0 4px;
}

.live-instructor-date {
    font-size: var(--font-sm);
    color: var(--gray-500);
}

/* 액션 버튼 */
.live-hero-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.live-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-sm);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    text-decoration: none;
}

.live-btn--outline {
    background: #fff;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    box-shadow: var(--shadow-sm);
}

.live-btn--outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

.live-btn--primary {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.live-btn--primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.live-btn--primary:hover::after {
    transform: translateX(100%);
}

.live-btn--primary:hover {
    background: var(--primary-dark);
}

.live-btn--primary.completed {
    background: var(--gray-600);
    box-shadow: none;
}

.live-btn--primary.completed::after {
    display: none;
}

.live-btn--bookmark {
    background: #fff;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    box-shadow: var(--shadow-sm);
}

.live-btn--bookmark:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.live-btn--bookmark.bookmarked {
    background: rgba(33, 115, 70, 0.06);
    border-color: var(--primary);
    color: var(--primary);
}

.live-btn--login {
    background: var(--gray-100);
    color: var(--gray-600);
    text-decoration: none;
    border: 1px solid var(--gray-200);
}

.live-btn--login:hover {
    background: var(--gray-200);
}

/* ── 비디오 섹션 ── */
.live-video-section {
    margin-bottom: var(--space-lg);
}

.live-video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    background: #0f172a;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.live-video-wrapper iframe,
.live-video-wrapper #player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ── 메인 콘텐츠 그리드 (Udemy-style) ── */
.live-content-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-xl);
    padding-bottom: var(--space-3xl);
}

/* ── 우측 사이드바 Sticky ── */
.live-content-right {
    position: -webkit-sticky;
    position: sticky;
    top: var(--space-lg);
    align-self: start;
    max-height: calc(100vh - var(--space-xl));
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #c1cfc7 transparent;
}

.live-content-right::-webkit-scrollbar {
    width: 5px;
}

.live-content-right::-webkit-scrollbar-track {
    background: transparent;
}

.live-content-right::-webkit-scrollbar-thumb {
    background: #c1cfc7;
    border-radius: var(--radius-full);
}

/* ── 탭 네비게이션 ── */
.live-tabs {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--space-lg);
}

.live-tab {
    padding: 14px 20px;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--gray-400);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-base);
}

.live-tab:hover {
    color: var(--gray-600);
}

.live-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 700;
}

.live-tab-badge-premium {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    color: #7c3aed;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(124, 58, 237, 0.1));
    border-radius: var(--radius-full);
    align-self: center;
    letter-spacing: 0.03em;
}

/* ── 탭 콘텐츠 ── */
.live-tab-panel {
    display: none;
}

.live-tab-panel.active {
    display: block;
}

/* ── 강의 목차 (Timeline) — reference 스타일 ── */
.live-timeline-card {
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.live-timeline-scroll {
    max-height: 486px; /* 약 9개 아이템 (54px x 9) */
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #c1cfc7 transparent;
}

.live-timeline-scroll::-webkit-scrollbar {
    width: 5px;
}

.live-timeline-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.live-timeline-scroll::-webkit-scrollbar-thumb {
    background: #c1cfc7;
    border-radius: var(--radius-full);
}

.live-timeline-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 20px;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--gray-100);
}

.live-timeline-item:last-child {
    border-bottom: none;
}

.live-timeline-item:hover {
    background: #f1f5f3;
    padding-left: 24px;
}

.live-timeline-item.active {
    background: rgba(33, 115, 70, 0.05);
    border-left: 3px solid var(--primary);
}

.live-timeline-time {
    font-size: var(--font-xs);
    font-family: 'Consolas', 'Monaco', monospace;
    font-weight: 700;
    color: var(--primary);
    background: rgba(33, 115, 70, 0.08);
    padding: 4px 10px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    min-width: 52px;
    text-align: center;
}

.live-timeline-item.active .live-timeline-time {
    background: var(--primary);
    color: #fff;
}

.live-timeline-title {
    flex: 1;
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--gray-700);
}

.live-timeline-item:hover .live-timeline-title {
    color: var(--gray-800);
}

.live-timeline-item.active .live-timeline-title {
    font-weight: 700;
    color: var(--gray-800);
}

.live-timeline-icon {
    color: var(--gray-300);
    transition: color var(--transition-fast);
    font-size: var(--font-lg);
}

.live-timeline-item:hover .live-timeline-icon,
.live-timeline-item.active .live-timeline-icon {
    color: var(--primary);
}

/* ── 기존 숏코드 출력 HTML 호환 스타일 ── */
/* [add_ytube_anchor] 출력:
   <a onclick="seek(N)">
     <div class="lecture-time">
       <div class="lecture-time-content">제목</div>
       <div class="lecture-time-log"><i class="fas fa-play-circle"></i> 00:00</div>
     </div>
   </a>
*/
.live-timeline-card .lecture-time-container {
    padding: 0;
    background: none;
    box-shadow: none;
    margin: 0;
    border-radius: 0;
}

.live-timeline-card .lecture-time-container ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

.live-timeline-card .lecture-time-list {
    padding: 0;
    margin: 0;
}

.live-timeline-card .lecture-time-list a {
    display: block;
    text-decoration: none !important;
    color: inherit;
    border-bottom: 1px solid var(--gray-100);
    transition: all 0.2s ease;
}

.live-timeline-card .lecture-time-list a:last-child {
    border-bottom: none;
}

.live-timeline-card .lecture-time-list a:hover {
    background: #f1f5f3;
    text-decoration: none !important;
}

.live-timeline-card .lecture-time {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 14px 20px;
    transition: padding 0.2s ease;
}

.live-timeline-card .lecture-time-list a:hover .lecture-time {
    padding-left: 24px;
}

.live-timeline-card .lecture-time-content {
    flex: 1;
    width: auto;
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--gray-700);
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    order: 2;
}

.live-timeline-card .lecture-time-list a:hover .lecture-time-content {
    color: var(--gray-800);
}

.live-timeline-card .lecture-time-log {
    order: 1;
    width: auto;
    text-align: center;
    flex-shrink: 0;
    font-size: var(--font-xs);
    font-family: 'Consolas', 'Monaco', monospace;
    font-weight: 700;
    color: var(--primary);
    background: rgba(33, 115, 70, 0.08);
    padding: 4px 10px;
    border-radius: var(--radius-md);
    min-width: 52px;
}

.live-timeline-card .lecture-time-log i {
    display: none;
}

.live-timeline-card .lecture-time-list a:hover .lecture-time-log {
    background: var(--primary);
    color: #fff;
}

/* Q&A 배지 */
.live-timeline-card .lecture-qa {
    background: var(--gray-600);
    color: #fff;
    padding: 1px 6px 2px;
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    margin-right: 4px;
}

/* 재생 아이콘 (우측) */
.live-timeline-card .lecture-time::after {
    content: '\f144'; /* fa-play-circle */
    font-family: 'Font Awesome 5 Free';
    font-weight: 400;
    color: var(--gray-300);
    font-size: var(--font-lg);
    order: 3;
    transition: color var(--transition-fast);
}

.live-timeline-card .lecture-time-list a:hover .lecture-time::after {
    color: var(--primary);
}

/* 현재 재생 중 목차 강조 */
.live-timeline-card .lecture-time-list a.timeline-active {
    background: var(--primary-light, #e8f5e9);
    border-left: 3px solid var(--primary);
}

.live-timeline-card .lecture-time-list a.timeline-active .lecture-time-content {
    color: var(--primary-dark);
    font-weight: 600;
}

.live-timeline-card .lecture-time-list a.timeline-active .lecture-time-log {
    background: var(--primary);
    color: #fff;
}

.live-timeline-card .lecture-time-list a.timeline-active .lecture-time::after {
    color: var(--primary);
}

/* ── 사이드바 타임라인 (넘버링 스타일) ── */
.live-sidebar-timeline {
    padding: 0;
    overflow: hidden;
}

.live-sidebar-timeline h3 {
    padding: var(--space-md) 20px var(--space-sm);
}

.live-sidebar-timeline .live-timeline-scroll {
    max-height: 450px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #c1cfc7 transparent;
}

.live-sidebar-timeline .live-timeline-scroll::-webkit-scrollbar {
    width: 5px;
}

.live-sidebar-timeline .live-timeline-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.live-sidebar-timeline .live-timeline-scroll::-webkit-scrollbar-thumb {
    background: #c1cfc7;
    border-radius: var(--radius-full);
}

/* 컨테이너 리셋 */
.live-sidebar-timeline .lecture-time-container {
    padding: 0;
    background: none;
    box-shadow: none;
    margin: 0;
    border-radius: 0;
}

.live-sidebar-timeline .lecture-time-container ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 카운터 설정 */
.live-sidebar-timeline .lecture-time-list {
    padding: 0 var(--space-sm) var(--space-sm);
    margin: 0;
    counter-reset: tl-num;
}

.live-sidebar-timeline .lecture-time-list a {
    counter-increment: tl-num;
    display: block;
    text-decoration: none !important;
    color: inherit;
    border-radius: var(--radius-md);
    border-bottom: none;
    transition: background 0.15s ease;
}

.live-sidebar-timeline .lecture-time-list a:hover {
    background: var(--gray-100);
    text-decoration: none !important;
}

/* 아이템 레이아웃: [원형숫자] [제목] [시간] */
.live-sidebar-timeline .lecture-time {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 14px;
    position: relative;
}

/* 원형 숫자 */
.live-sidebar-timeline .lecture-time::before {
    content: counter(tl-num);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    background: var(--gray-100);
    color: var(--gray-500);
    order: 0;
    transition: all 0.15s ease;
    font-family: inherit;
}

/* 기존 재생 아이콘 숨김 */
.live-sidebar-timeline .lecture-time::after {
    display: none;
}

/* 제목 */
.live-sidebar-timeline .lecture-time-content {
    flex: 1;
    min-width: 0;
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--gray-700);
    order: 1;
    width: auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 활성 아이템 텍스트 — JS 전광판용 스크롤 활성화 */
.live-sidebar-timeline .lecture-time-list a.timeline-active .lecture-time-content {
    overflow: auto;
    text-overflow: clip;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.live-sidebar-timeline .lecture-time-list a.timeline-active .lecture-time-content::-webkit-scrollbar {
    display: none;
}

/* 시간대 — 평소 숨김, hover 시 fade-in */
.live-sidebar-timeline .lecture-time-log {
    position: absolute;
    right: 14px;
    font-size: 12px;
    color: var(--gray-400);
    background: none !important;
    padding: 2px 0 2px 20px;
    font-variant-numeric: tabular-nums;
    opacity: 0;
    transform: translateX(8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    background: linear-gradient(to right, transparent, var(--gray-100) 12px) !important;
    pointer-events: none;
}

.live-sidebar-timeline .lecture-time-log i {
    display: none;
}


/* 호버 시 시간대 fade-in */
.live-sidebar-timeline .lecture-time-list a:hover .lecture-time-log {
    color: var(--gray-600);
    opacity: 1;
    transform: translateX(0);
    background: linear-gradient(to right, transparent, var(--gray-100) 12px) !important;
}

.live-sidebar-timeline .lecture-time-list a:hover .lecture-time::before {
    background: var(--gray-200);
    color: var(--gray-600);
}

.live-sidebar-timeline .lecture-time-list a:hover .lecture-time {
    padding-left: 14px; /* 호버 시 패딩 이동 방지 */
}

/* ── 현재 재생 중 (Active) ── */
.live-sidebar-timeline .lecture-time-list a.timeline-active {
    background: var(--primary-light, #e8f5e9);
    border-left: none;
}

.live-sidebar-timeline .lecture-time-list a.timeline-active .lecture-time::before {
    background: var(--primary);
    color: #fff;
}

.live-sidebar-timeline .lecture-time-list a.timeline-active .lecture-time-content {
    font-weight: 700;
    color: var(--primary-dark);
}

.live-sidebar-timeline .lecture-time-list a.timeline-active .lecture-time-log {
    color: var(--primary);
    opacity: 1;
    transform: translateX(0);
    background: linear-gradient(to right, transparent, var(--primary-light, #e8f5e9) 12px) !important;
}

/* ── 강의 자료 다운로드 리스트 ── */
.live-dl-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.live-dl-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-nm) var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-base);
}

.live-dl-item:hover {
    border-color: rgba(33, 115, 70, 0.25);
    background: rgba(33, 115, 70, 0.02);
}

.live-dl-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--font-lg);
}

.live-dl-icon.excel {
    background: #ecfdf5;
    color: #047857;
}

.live-dl-icon.pdf {
    background: #fef2f2;
    color: #dc2626;
}

.live-dl-icon.word {
    background: #eff6ff;
    color: #2563eb;
}

.live-dl-icon.file {
    background: var(--gray-100);
    color: var(--gray-500);
}

.live-dl-info {
    flex: 1;
    min-width: 0;
}

.live-dl-name {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.live-dl-meta {
    font-size: var(--font-xs);
    color: var(--gray-400);
    margin-top: 2px;
}

.live-dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border-radius: var(--radius-md);
    font-size: var(--font-xs);
    font-weight: 700;
    text-decoration: none;
    flex-shrink: 0;
    transition: all var(--transition-base);
    background: var(--primary);
    color: #fff;
}

.live-dl-btn:hover {
    background: var(--primary-dark);
    color: #fff;
}

.live-dl-btn--login {
    background: var(--gray-100);
    color: var(--gray-600);
}

.live-dl-btn--login:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.live-dl-notice {
    margin-top: var(--space-sm);
    padding: var(--space-nm) var(--space-md);
    background: var(--bg-subtle);
    border-radius: var(--radius-md);
    font-size: var(--font-xs);
    color: var(--gray-500);
}

/* ── 추천 강의 그리드 ── */
.live-rec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.live-rec-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.live-rec-card:hover {
    border-color: rgba(33, 115, 70, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(20, 128, 69, 0.1);
}

.live-rec-thumb {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    overflow: hidden;
    background: var(--gray-100);
}

.live-rec-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.live-rec-card:hover .live-rec-thumb img {
    transform: scale(1.05);
}

.live-rec-info {
    padding: var(--space-nm) var(--space-md);
}

.live-rec-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.live-rec-title {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--gray-700);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.live-rec-card:hover .live-rec-title {
    color: var(--primary);
}

/* ── 무료 편집 강의 리스트 ── */
.live-free-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.live-free-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-nm) var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

.live-free-item:hover {
    border-color: rgba(33, 115, 70, 0.25);
    background: rgba(33, 115, 70, 0.02);
}

.live-free-badge {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--font-lg);
}

.live-free-badge.yt {
    background: #fef2f2;
    color: #dc2626;
}

.live-free-badge.post {
    background: #eff6ff;
    color: #2563eb;
}

.live-free-info {
    flex: 1;
    min-width: 0;
}

.live-free-cat {
    font-size: 11px;
    font-weight: 700;
    color: var(--gray-400);
    margin-bottom: 2px;
}

.live-free-title {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--gray-700);
    line-height: 1.4;
}

.live-free-item:hover .live-free-title {
    color: var(--primary);
}

.live-free-desc {
    font-size: var(--font-xs);
    color: var(--gray-400);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.live-free-arrow {
    color: var(--gray-300);
    font-size: var(--font-sm);
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.live-free-item:hover .live-free-arrow {
    color: var(--primary);
}

/* ── 강의 소개 카드 ── */
.live-about-card {
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    margin-top: var(--space-lg);
}

.live-about-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-nm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.live-about-card h3 i {
    color: var(--primary);
}

.live-about-card p {
    font-size: var(--font-sm);
    color: var(--gray-600);
    line-height: 1.7;
}

.live-checklist {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: var(--space-md);
    list-style: none;
    padding: 0;
}

.live-checklist li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-600);
    font-size: var(--font-sm);
}

.live-checklist li i {
    color: var(--primary);
    font-size: var(--font-sm);
    flex-shrink: 0;
}

/* ── 강의 설명 (본문) ── */
.live-description {
    margin-top: var(--space-xl);
}

.live-description h3 {
    font-size: var(--font-lg);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.live-description h3 i {
    color: var(--primary);
}

.live-description p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ── Action Bar: 이전/다음 + 다운로드 통합 바 ── */
.live-action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-nm);
    margin-bottom: var(--space-lg);
    padding: 10px var(--space-md);
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
}

.live-action-bar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.live-action-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: none;
    border: none;
    font-size: var(--font-sm);
    color: var(--gray-400);
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

a.live-action-nav-btn:hover {
    color: var(--primary);
}

a.live-action-nav-btn:last-child,
.live-action-bar-nav > a.live-action-nav-btn:not(:first-child) {
    color: var(--primary);
    font-weight: 600;
}

.live-action-nav-btn.disabled {
    opacity: 0.35;
    pointer-events: none;
}

.live-action-nav-sep {
    width: 1px;
    height: 14px;
    background: var(--gray-200);
}

.live-action-bar-downloads {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.live-action-dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--bg-subtle);
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.live-action-dl-btn i {
    color: var(--primary);
}

.live-action-dl-btn:hover {
    border-color: var(--primary);
    background: rgba(33, 115, 70, 0.04);
    color: var(--primary);
}

.live-action-dl-btn--login {
    background: var(--gray-100);
    color: var(--gray-500);
}

.live-action-dl-btn--login i {
    color: var(--gray-400);
}

.live-action-dl-btn--login:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
    color: var(--gray-600);
}

.live-action-bar-notice {
    font-size: var(--font-xs);
    color: var(--gray-500);
    padding: 6px var(--space-md);
    margin-top: -12px;
    margin-bottom: var(--space-md);
}

/* ── 보충 자료 아코디언 ── */
.live-accordion {
    margin-top: var(--space-xl);
}

.live-accordion-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 12px 20px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: all var(--transition-base);
}

.live-accordion-trigger:hover {
    background: var(--gray-200);
}

.live-accordion-trigger i {
    transition: transform var(--transition-base);
}

.live-accordion-trigger.open i.fa-angle-down {
    transform: rotate(180deg);
}

.live-accordion-body {
    display: none;
    margin-top: var(--space-lg);
}

.live-accordion-body h5 {
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

/* ── 사이드바 카드 (공통) ── */
.live-sidebar-card {
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-lg);
}

.live-sidebar-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--gray-800);
}

.live-sidebar-card h3 i,
.live-sidebar-card h3 .material-symbols-outlined {
    color: var(--primary);
    font-size: var(--font-lg);
}

/* ── 강의 자료 (참조 디자인 스타일) ── */
.live-material-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-nm);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-base);
    margin-bottom: 10px;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.live-material-item:last-child {
    margin-bottom: 0;
}

.live-material-item:hover {
    border-color: rgba(33, 115, 70, 0.25);
    background: rgba(33, 115, 70, 0.02);
}

.live-material-left {
    display: flex;
    align-items: center;
    gap: var(--space-nm);
    min-width: 0;
}

.live-material-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--font-lg);
}

.live-material-icon.excel {
    background: #ecfdf5;
    color: var(--color-success);
}

.live-material-icon.pdf {
    background: #fef2f2;
    color: var(--color-danger);
}

.live-material-icon.file {
    background: #eff6ff;
    color: var(--color-info);
}

.live-material-name {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.live-material-meta {
    font-size: var(--font-xs);
    color: var(--gray-400);
}

.live-material-dl {
    color: var(--gray-300);
    font-size: var(--font-lg);
    transition: color var(--transition-fast);
    flex-shrink: 0;
    margin-left: var(--space-sm);
}

.live-material-item:hover .live-material-dl {
    color: var(--primary);
}

/* ── 추천 강의 (참조 디자인 스타일) ── */
.live-recommend-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-nm);
}

.live-recommend-item {
    display: flex;
    gap: var(--space-nm);
    padding: var(--space-sm);
    margin: 0 calc(-1 * var(--space-sm));
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: background var(--transition-fast);
}

.live-recommend-item:hover {
    background: var(--gray-100);
}

.live-recommend-thumb {
    width: 72px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    overflow: hidden;
    flex-shrink: 0;
}

.live-recommend-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.live-recommend-item:hover .live-recommend-thumb img {
    transform: scale(1.1);
}

.live-recommend-info {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.live-recommend-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 700;
}

.live-recommend-badge.beginner,
.live-recommend-badge.입문 {
    background: #ecfdf5;
    color: #047857;
}

.live-recommend-badge.intermediate,
.live-recommend-badge.중급 {
    background: #eff6ff;
    color: #2563eb;
}

.live-recommend-badge.advanced,
.live-recommend-badge.고급 {
    background: #fff7ed;
    color: #c2410c;
}

.live-recommend-title {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--gray-700);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.live-recommend-item:hover .live-recommend-title {
    color: var(--primary);
}

.live-sidebar-viewall {
    display: block;
    width: 100%;
    margin-top: var(--space-md);
    padding: 10px;
    text-align: center;
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--primary);
    background: rgba(33, 115, 70, 0.05);
    border: 1px solid rgba(33, 115, 70, 0.1);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.live-sidebar-viewall:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ── 관련함수 / 슬릭 (사이드바) ── */
.live-sidebar-card .related-function-nothumb-list-box,
.live-sidebar-card .slick-carousel-small {
    margin-top: var(--space-sm);
}

/* ── 버전 안내 ── */
.live-version-alert {
    background: var(--bg-subtle);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-top: var(--space-md);
}

.live-version-alert .label {
    text-align: center;
    margin-bottom: var(--space-sm);
}

/* ── 프리미엄 배너 ── */
.live-premium-banner {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #2A8C62 100%);
    color: #fff;
    border-radius: 14px;
    padding: 28px 24px;
    margin-bottom: var(--space-lg);
    position: relative;
    overflow: hidden;
}

.live-premium-circle {
    position: absolute;
    border-radius: 50%;
}

.live-premium-circle--tr {
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.06);
}

.live-premium-circle--bl {
    bottom: -20px;
    left: -20px;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.04);
}

.live-premium-inner {
    position: relative;
    z-index: 1;
}

.live-premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 5px 12px;
    margin-bottom: 14px;
}

.live-premium-badge i {
    color: #FFD93D;
    font-size: 12px;
}

.live-premium-badge span {
    color: rgba(255, 255, 255, 0.95);
    font-size: 12px;
    font-weight: 600;
}

.live-premium-title {
    font-size: 20px;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
}

.live-premium-desc {
    color: rgba(255, 255, 255, 0.75);
    font-size: var(--font-sm);
    line-height: 1.6;
    margin-bottom: 20px;
}

.live-premium-btn {
    display: inline-block;
    background: #fff;
    color: var(--primary-dark);
    border: none;
    border-radius: var(--radius-lg);
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-base);
}

.live-premium-btn:hover {
    background: #f0f0f0;
    color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ── 반응형 ── */
@media (max-width: 1024px) {
    .live-content-grid {
        grid-template-columns: 1fr;
    }

    .live-content-right {
        position: static;
        max-height: none;
        overflow-y: visible;
    }

    .live-sidebar-timeline .live-timeline-scroll {
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    .live-rec-grid {
        grid-template-columns: 1fr;
    }

    .live-hero-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .live-hero-actions {
        width: 100%;
    }

    .live-hero-actions .live-btn {
        flex: 1;
        justify-content: center;
    }

    .live-hero h1 {
        font-size: 1.4rem;
    }

    .live-action-bar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
    }

    .live-action-bar-nav {
        justify-content: center;
    }

    .live-action-bar-downloads {
        justify-content: center;
    }

    .live-checklist {
        grid-template-columns: 1fr;
    }

    .live-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .live-tab {
        padding: var(--space-nm) var(--space-md);
        white-space: nowrap;
    }

    .live-breadcrumb {
        display: none;
    }
}

@media (max-width: 480px) {
    .live-page-wrap {
        padding: 0 var(--space-md);
    }

    .live-hero-actions {
        flex-direction: column;
    }

    .live-hero-actions .live-btn {
        width: 100%;
    }

    .live-instructor-inline {
        flex-wrap: wrap;
    }

    .live-instructor-divider {
        display: none;
    }
}