/* ========================================
   CLASS 페이지 - Minimal Luxury
   Inspired by firstcook, styled for 오늘을빚다
   ======================================== */

/* ── Listing Hero ── */
.class-hero {
    padding: 180px 0 100px;
    text-align: center;
    background: #1a1a1a;
    position: relative;
    overflow: hidden;
}

.class-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('https://images.unsplash.com/photo-1578985545062-69928b1d9587?w=1400&q=80') center/cover;
    opacity: 0.18;
}

.class-hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(26,26,26,0.7) 0%, rgba(26,26,26,0.4) 50%, rgba(26,26,26,0.8) 100%);
    z-index: 0;
}

.class-hero .container { position: relative; z-index: 1; }

.class-hero-label {
    font-family: var(--font-display);
    font-size: 12px;
    color: #8b7355;
    letter-spacing: 5px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 20px;
}

.class-hero h1 {
    font-family: var(--font-display);
    font-size: 68px;
    font-weight: 400;
    color: #fff;
    letter-spacing: 12px;
    margin-bottom: 24px;
}

.class-hero-subtitle {
    font-family: var(--font-serif);
    font-size: 17px;
    color: rgba(255,255,255,0.65);
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.02em;
}

/* ── Category Filter ── */
.class-filter {
    padding: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: var(--header-h);
    z-index: 100;
}

.filter-list {
    display: flex;
    justify-content: center;
    gap: 0;
}

.filter-btn {
    padding: 20px 32px;
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    transition: all 0.3s;
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--black);
    transition: width 0.3s var(--ease);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--black);
}

.filter-btn.active::after {
    width: 100%;
}

/* ── Class Card Grid ── */
.class-listing {
    padding: 80px 0 120px;
    background: var(--white);
}

.class-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
}

.class-card {
    background: var(--white);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
}

.class-card:hover {
    z-index: 2;
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

.class-card-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-light);
    position: relative;
}

.class-card-image img,
.class-card-image .placeholder-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-radius: 0;
}

.class-card:hover .class-card-image img,
.class-card:hover .class-card-image .placeholder-image {
    transform: scale(1.1);
}

.class-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 5px 12px;
    background: var(--black);
    color: var(--white);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    z-index: 2;
}

.class-card-badge.certificate { background: var(--accent); }
.class-card-badge.startup { background: #2d6a4f; }
.class-card-badge.coming-soon { background: #8b7355; }

.class-card-info {
    padding: 20px 4px;
}

.class-card-title {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.class-card-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    font-weight: 400;
    margin-bottom: 10px;
}

.class-card-meta {
    display: flex;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

.class-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ══════════════════════════════════
   Education Category Sections
   ══════════════════════════════════ */

/* ── Each Category Section ── */
.edu-category {
    padding: 80px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-light);
}

.edu-category--alt {
    background: var(--bg-warm);
}

/* ── Startup Revenue Section ── */
.startup-revenue {
    background: #1a1a1a;
    padding: 100px 0;
    text-align: center;
}

.startup-rev-title {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 300;
    color: #fff;
    margin: 16px 0 8px;
    letter-spacing: -0.01em;
}

.startup-rev-subtitle {
    font-size: 15px;
    color: rgba(255,255,255,0.45);
    margin-bottom: 56px;
}

/* 매출 수치 카드 */
.startup-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 64px;
}

.startup-stat-card {
    padding: 40px 24px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 2px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.startup-stat-card:hover {
    border-color: rgba(139,115,85,0.3);
    transform: translateY(-4px);
    background: rgba(255,255,255,0.02);
}

.startup-stat-label {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.startup-stat-number {
    display: block;
    font-family: var(--font-en);
    font-size: 48px;
    font-weight: 300;
    color: #8b7355;
    line-height: 1;
    margin-bottom: 8px;
}

.startup-stat-number small {
    font-size: 20px;
    color: rgba(255,255,255,0.5);
}

.startup-stat-note {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.3);
}

/* 수익 시뮬레이션 */
.startup-simulation {
    margin-bottom: 72px;
}

.startup-sim-title {
    font-family: var(--font-serif);
    font-size: 20px;
    color: #fff;
    font-weight: 300;
    margin-bottom: 32px;
}

.startup-sim-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.startup-sim-item {
    padding: 32px 24px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 2px;
    text-align: center;
}

.startup-sim-item--highlight {
    border-color: #8b7355;
    background: rgba(139,115,85,0.08);
}

.startup-sim-label {
    display: block;
    font-size: 14px;
    color: #fff;
    font-weight: 500;
    margin-bottom: 8px;
}

.startup-sim-calc {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.35);
    margin-bottom: 16px;
}

.startup-sim-result {
    display: block;
    font-family: var(--font-en);
    font-size: 22px;
    color: #8b7355;
    font-weight: 400;
    margin-bottom: 4px;
}

.startup-sim-profit {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
}

/* 성공 사례 */
.startup-success {
    margin-bottom: 64px;
}

.startup-success-title {
    font-family: var(--font-serif);
    font-size: 20px;
    color: #fff;
    font-weight: 300;
    margin-bottom: 32px;
    text-align: center;
}

.startup-success-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.startup-success-card {
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.startup-success-card:hover {
    border-color: rgba(139,115,85,0.2);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
}

.startup-success-image {
    height: 200px;
    overflow: hidden;
}

.startup-success-image .placeholder-image {
    height: 100%;
    border-radius: 0;
    transition: transform 0.8s ease;
}

.startup-success-card:hover .startup-success-image .placeholder-image {
    transform: scale(1.08);
}

.startup-success-info {
    padding: 28px 24px;
}

.startup-success-badge {
    display: inline-block;
    font-size: 11px;
    color: #8b7355;
    border: 1px solid rgba(139,115,85,0.3);
    padding: 3px 10px;
    border-radius: 12px;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.startup-success-info h4 {
    font-size: 17px;
    color: #fff;
    font-weight: 500;
    margin-bottom: 4px;
}

.startup-success-desc {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    margin-bottom: 12px;
}

.startup-success-quote {
    font-size: 13px;
    color: rgba(255,255,255,0.55);
    line-height: 1.8;
    margin-bottom: 16px;
    font-style: italic;
}

.startup-success-revenue {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 14px;
    color: #8b7355;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* CTA 버튼 */
.startup-cta-final {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.startup-cta-btn {
    display: inline-block;
    padding: 16px 48px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.08em;
    background: #8b7355;
    color: #fff;
    border: 1px solid #8b7355;
    transition: all 0.4s ease;
}

.startup-cta-btn:hover {
    background: #a08b6d;
    box-shadow: 0 8px 32px rgba(139,115,85,0.3);
    transform: translateY(-2px);
}

.startup-cta-btn--outline {
    background: transparent;
    border-color: rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.7);
}

.startup-cta-btn--outline:hover {
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.05);
    box-shadow: none;
}

@media (max-width: 1024px) {
    .startup-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .startup-rev-title { font-size: 24px; }
    .startup-stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .startup-stat-number { font-size: 36px; }
    .startup-stat-card { padding: 28px 16px; }
    .startup-sim-grid { grid-template-columns: 1fr; }
    .startup-success-grid { grid-template-columns: 1fr; }
    .startup-revenue { padding: 72px 0; }
    .startup-cta-final { flex-direction: column; align-items: center; }
    .startup-cta-btn { width: 100%; max-width: 280px; text-align: center; }
}

/* ── Startup Message Banner (class-detail) ── */
.startup-msg-banner {
    position: relative;
    padding: 100px 0;
    text-align: center;
    overflow: hidden;
}

.startup-msg-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2218 50%, #1a1a1a 100%);
    z-index: 0;
}

.startup-msg-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(139,115,85,0.08) 0%, transparent 70%);
}

.startup-msg-content {
    max-width: 600px;
    margin: 0 auto;
}

.startup-msg-top {
    font-family: var(--font-en);
    font-size: 12px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #8b7355;
    margin-bottom: 24px;
}

.startup-msg-headline {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 300;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 36px;
    letter-spacing: -0.01em;
}

.startup-msg-pills {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.startup-msg-pills span {
    padding: 8px 24px;
    border: 1px solid rgba(139,115,85,0.3);
    border-radius: 24px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.startup-msg-pills span:hover {
    border-color: #8b7355;
    color: #fff;
    background: rgba(139,115,85,0.15);
}

.startup-msg-bottom {
    font-size: 16px;
    color: rgba(255,255,255,0.5);
    font-weight: 300;
}

.startup-msg-bottom strong {
    color: #8b7355;
    font-weight: 500;
}

@media (max-width: 768px) {
    .startup-msg-headline { font-size: 26px; }
    .startup-msg-banner { padding: 72px 0; }
    .startup-msg-pills span { padding: 6px 18px; font-size: 12px; }
}

/* ── Category Header ── */
.edu-cat-header {
    margin-bottom: 32px;
}

.edu-cat-number {
    font-family: var(--font-display);
    font-size: 13px;
    color: #8b7355;
    letter-spacing: 3px;
    font-style: italic;
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
}

.edu-cat-title {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 400;
    color: var(--black);
    letter-spacing: -0.01em;
    margin: 0 0 8px;
}

.edu-cat-eng {
    font-family: var(--font-display);
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    margin: 0;
}

.edu-cat-desc {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 400;
    line-height: 1.9;
    margin: -8px 0 40px;
    max-width: 580px;
    letter-spacing: 0.01em;
}

/* ── Landing Card (원데이, 취미반) ── */
.edu-landing-card {
    display: block;
    position: relative;
    aspect-ratio: 21/9;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}

.edu-landing-image {
    position: absolute;
    inset: 0;
}

.edu-landing-image .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.edu-landing-card:hover .edu-landing-image .placeholder-image {
    transform: scale(1.1);
}

.edu-landing-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(26,26,26,0.65) 0%, rgba(26,26,26,0.2) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px 56px;
    transition: background 0.5s var(--ease);
}

.edu-landing-card:hover .edu-landing-overlay {
    background: linear-gradient(90deg, rgba(26,26,26,0.75) 0%, rgba(26,26,26,0.3) 60%, transparent 100%);
}

.edu-landing-desc {
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 400;
    color: var(--white);
    line-height: 1.8;
    margin: 0 0 24px;
    letter-spacing: 0.01em;
}

.edu-landing-btn {
    font-size: 13px;
    color: #8b7355;
    letter-spacing: 0.06em;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-weight: 500;
}

.edu-landing-card:hover .edu-landing-btn {
    color: #fff;
    letter-spacing: 0.1em;
}

/* ── Sub-Category Cards (창업반, 자격증반) ── */
.edu-sub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border-light);
}

.edu-sub-grid--wide {
    grid-template-columns: repeat(5, 1fr);
}

.edu-sub-card {
    background: var(--white);
    display: block;
    text-decoration: none;
    color: inherit;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
}

.edu-category--alt .edu-sub-card {
    background: var(--white);
}

.edu-sub-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

.edu-sub-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-light);
    position: relative;
}

.edu-sub-image .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.edu-sub-card:hover .edu-sub-image .placeholder-image {
    transform: scale(1.1);
}

.edu-sub-info {
    padding: 20px 16px;
}

.edu-sub-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 500;
    color: #8b7355;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.edu-sub-info h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--black);
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}

.edu-sub-info p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
    font-weight: 400;
    margin: 0 0 10px;
}

.edu-sub-meta {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

/* Coming Soon */
.edu-sub-card--coming {
    pointer-events: none;
    opacity: 0.7;
}

.edu-sub-card--coming .edu-sub-badge {
    color: #8b7355;
}

/* ══════════════════════════════════
   Detail Page
   ══════════════════════════════════ */

/* ── Shared Section Header ── */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 4px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 12px;
}

.section-header h2::after {
    content: attr(data-kr);
    display: block;
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--black);
    letter-spacing: -0.02em;
    text-transform: none;
    font-style: normal;
    margin-top: 8px;
}

.section-label {
    font-family: var(--font-display);
    font-size: 11px;
    color: #8b7355;
    letter-spacing: 4px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 20px;
    display: block;
}

/* ── 1. Detail Hero ── */
.detail-hero {
    padding-top: var(--header-h);
    height: 70vh;
    min-height: 480px;
    max-height: 640px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.detail-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
}

.detail-hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.detail-hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid rgba(255,255,255,0.3);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.8);
}

.detail-hero h1 {
    font-family: var(--font-serif);
    font-size: 40px;
    font-weight: 400;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.detail-hero-tagline {
    font-size: 15px;
    font-weight: 400;
    opacity: 0.7;
    margin-bottom: 36px;
    line-height: 1.8;
}

.detail-hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-hero-consult,
.btn-hero-enroll {
    padding: 14px 36px;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.05em;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
}

.btn-hero-consult {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.4);
    color: var(--white);
}

.btn-hero-consult:hover {
    background: var(--white);
    color: var(--black);
}

.btn-hero-enroll {
    background: var(--white);
    color: var(--black);
}

.btn-hero-enroll:hover {
    background: var(--bg-light);
}

/* ── 2. Overview ── */
.detail-overview {
    padding: 80px 0;
    background: var(--white);
}

.overview-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 60px;
    align-items: start;
}

.overview-content h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 20px;
    line-height: 1.5;
}

.overview-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.9;
    font-weight: 400;
    margin-bottom: 28px;
}

/* Result Box */
.result-box {
    background: var(--bg-warm);
    padding: 20px 24px;
    border: 1px solid var(--border-light);
    margin-bottom: 20px;
}

.result-box-label {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-weight: 400;
}

.result-box-value {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--black);
}

/* Age Info */
.age-info {
    padding: 16px 24px;
    background: var(--bg-light);
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.7;
    font-weight: 400;
    border-left: 2px solid var(--accent);
}

/* Info Card (Sidebar) */
.info-card {
    background: var(--black);
    color: var(--white);
    padding: 40px 32px;
    position: sticky;
    top: calc(var(--header-h) + 20px);
}

.info-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.info-card-title {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    color: rgba(255,255,255,0.5);
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* Batch Status Badge */
.batch-status {
    display: inline-block;
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.03em;
    border-radius: 2px;
}

.batch-status--open {
    background: rgba(45, 106, 79, 0.2);
    color: #6fcf97;
}

.batch-status--closing {
    background: rgba(235, 87, 87, 0.2);
    color: #eb5757;
}

.batch-status--preparing {
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4);
}

.info-value--price {
    color: var(--accent, #c9a96e);
    font-weight: 500;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.info-row:last-of-type {
    border-bottom: none;
}

.info-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
}

.info-value {
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--white);
    font-weight: 400;
    text-align: right;
}

.info-actions {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-info-primary {
    display: block;
    text-align: center;
    padding: 14px;
    background: var(--white);
    color: var(--black);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-decoration: none;
    transition: all 0.3s;
    font-family: var(--font-sans);
}

.btn-info-primary:hover {
    background: var(--accent);
    color: var(--white);
}

.btn-info-secondary {
    display: block;
    text-align: center;
    padding: 12px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.5);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.03em;
    text-decoration: none;
    transition: all 0.3s;
    font-family: var(--font-sans);
}

.btn-info-secondary:hover {
    border-color: rgba(255,255,255,0.4);
    color: var(--white);
}

/* ── 3. Objectives ── */
.detail-objectives {
    padding: 100px 0;
    background: var(--bg-warm);
}

.objectives-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-light);
}

.objective-card {
    background: var(--white);
    text-align: center;
    padding: 48px 28px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.objective-card:hover {
    background: var(--bg-warm);
}

.objective-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    color: #8b7355;
}

.objective-icon svg {
    width: 100%;
    height: 100%;
}

.objective-card h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 10px;
}

.objective-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    font-weight: 400;
}

/* ── 4. Gallery ── */
.detail-gallery {
    padding: 100px 0;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 4px;
}

.gallery-item {
    overflow: hidden;
    background: var(--bg-light);
}

.gallery-item-large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item .placeholder-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease);
}

.gallery-item:hover .placeholder-image {
    transform: scale(1.05);
}

/* ── 5. Curriculum ── */
.detail-curriculum {
    padding: 100px 0;
    background: var(--bg-light);
}

/* Level Tabs (앙금플라워) */
.level-tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--border);
}

.level-tab {
    padding: 14px 32px;
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-sans);
    transition: all 0.3s;
    position: relative;
}

.level-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--black);
    transform: scaleX(0);
    transition: transform 0.3s var(--ease);
}

.level-tab:hover,
.level-tab.active {
    color: var(--black);
}

.level-tab.active::after {
    transform: scaleX(1);
}

/* Curriculum List */
.curriculum-grid {
    max-width: 900px;
    margin: 0 auto;
}

.curriculum-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.curriculum-item:hover {
    background: var(--white);
    padding-left: 16px;
    padding-right: 16px;
    margin-left: -16px;
    margin-right: -16px;
}

.curriculum-step {
    font-family: var(--font-display);
    font-size: 13px;
    color: #8b7355;
    font-style: italic;
    padding-top: 3px;
    min-width: 80px;
    font-weight: 600;
    letter-spacing: 1px;
}

.curriculum-content h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.curriculum-content p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    font-weight: 400;
}

/* Curriculum with Images (firstcook style) */
.curriculum-item.has-image {
    grid-template-columns: 100px 80px 1fr;
    align-items: center;
}

.curriculum-thumb {
    width: 100px;
    height: 80px;
    overflow: hidden;
    background: var(--bg-light);
    flex-shrink: 0;
}

.curriculum-thumb .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s var(--ease);
}

.curriculum-item.has-image:hover .curriculum-thumb .placeholder-image {
    transform: scale(1.08);
}

/* Curriculum toggle (더보기/접기) */
.curriculum-hidden {
    display: none;
}

.curriculum-expanded .curriculum-hidden {
    display: flex;
}

.curriculum-expanded .curriculum-item.has-image.curriculum-hidden {
    display: grid;
}

.curriculum-toggle {
    width: 100%;
    padding: 16px;
    background: var(--bg-warm, #faf8f5);
    border: 1px solid var(--border-light);
    border-top: none;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.3px;
}

.curriculum-toggle:hover {
    background: var(--bg-light);
    color: var(--black);
}

/* ── 5.5 Mid CTA ── */
.mid-cta {
    padding: 48px 0;
    background: var(--accent, #c9a96e);
}

.mid-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.mid-cta-text h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    color: var(--white);
    margin-bottom: 6px;
}

.mid-cta-text p {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    font-weight: 400;
}

.mid-cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.btn-mid-cta {
    padding: 12px 28px;
    background: var(--white);
    color: var(--black);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.03em;
    text-decoration: none;
    transition: all 0.3s;
    font-family: var(--font-sans);
}

.btn-mid-cta:hover {
    background: var(--black);
    color: var(--white);
}

.btn-mid-cta-outline {
    padding: 12px 28px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.5);
    color: var(--white);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.03em;
    text-decoration: none;
    transition: all 0.3s;
    font-family: var(--font-sans);
}

.btn-mid-cta-outline:hover {
    background: var(--white);
    color: var(--black);
}

/* ── 9.5 Student Works ── */
.student-works-section {
    padding: 100px 0;
    background: var(--white);
}

.student-works-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

.student-work-card {
    overflow: hidden;
    position: relative;
    cursor: default;
}

.student-work-image {
    aspect-ratio: 1/1;
    overflow: hidden;
    background: var(--bg-light);
}

.student-work-image .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s var(--ease);
}

.student-work-card:hover .student-work-image .placeholder-image {
    transform: scale(1.06);
}

.student-work-info {
    padding: 14px 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.student-work-name {
    font-size: 13px;
    font-weight: 400;
    color: var(--black);
}

.student-work-course {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

/* ── 6. Extras ── */
.detail-extras {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--border-light);
}

.extras-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border-light);
}

.extra-card {
    background: var(--white);
    padding: 36px 32px;
    border: 1px solid var(--border-light);
    border-radius: 2px;
    display: flex;
    align-items: flex-start;
    gap: 24px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.extra-card:hover {
    border-color: rgba(139,115,85,0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.extra-card-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: 50%;
    background: rgba(139,115,85,0.08);
    border: 1px solid rgba(139,115,85,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8b7355;
    transition: all 0.4s ease;
}

.extra-card:hover .extra-card-icon {
    background: #8b7355;
    color: #fff;
    transform: scale(1.08);
    box-shadow: 0 4px 16px rgba(139,115,85,0.25);
}

.extra-card-content {
    flex: 1;
}

.extra-card h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: 0.01em;
}

.extra-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    font-weight: 300;
}

/* ── 7. Features ── */
.detail-features {
    padding: 80px 0;
    background: var(--bg-warm);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-light);
}

.feature-item {
    background: var(--white);
    padding: 36px 24px;
    text-align: center;
    font-size: 14px;
    color: var(--text-light);
    font-weight: 400;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    letter-spacing: 0.01em;
}

.feature-item:hover {
    background: var(--bg-warm);
    transform: translateY(-4px);
}

.feature-item svg {
    display: block;
    margin: 0 auto 16px;
    stroke: #8b7355;
    background: rgba(139, 115, 85, 0.1);
    border-radius: 50%;
    padding: 10px;
    width: 44px;
    height: 44px;
    box-sizing: content-box;
}

/* ── 8. Education Process ── */
.detail-process {
    padding: 100px 0;
    background: var(--bg-warm);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    max-width: 1100px;
    margin: 0 auto;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 0 16px;
    max-width: 200px;
}

.process-number {
    font-family: var(--font-display);
    font-size: 13px;
    color: #8b7355;
    letter-spacing: 3px;
    font-style: italic;
    margin-bottom: 18px;
    font-weight: 600;
}

.process-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #8b7355;
    border-radius: 50%;
    color: #8b7355;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: rgba(139, 115, 85, 0.05);
}

.process-step:hover .process-icon {
    background: #8b7355;
    color: var(--white);
    border-color: #8b7355;
    transform: scale(1.08);
}

.process-icon svg {
    width: 26px;
    height: 26px;
}

.process-step h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.process-step p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.8;
    font-weight: 400;
}

.process-connector {
    display: flex;
    align-items: center;
    padding-top: 50px;
    flex-shrink: 0;
}

.process-connector span {
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #8b7355, rgba(139, 115, 85, 0.3));
    position: relative;
}

.process-connector span::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    width: 0;
    height: 0;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 7px solid #8b7355;
}

/* ── 9. Instructor ── */
.detail-instructor {
    padding: 0;
    background: var(--white);
}

.instructor-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-height: 500px;
}

.instructor-image {
    overflow: hidden;
    background: var(--bg-light);
}

.instructor-image--real {
    background: var(--bg-warm, #faf8f5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.instructor-photo {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    max-height: 600px;
}

.instructor-image .placeholder-image {
    width: 100%;
    height: 100%;
    min-height: 500px;
    object-fit: cover;
}

.instructor-content {
    padding: 80px 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--bg-warm);
}

.instructor-content h2 {
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 8px;
}

.instructor-content h2::after {
    content: attr(data-kr);
    display: block;
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--black);
    text-transform: none;
    font-style: normal;
    margin-top: 8px;
    margin-bottom: 24px;
}

.instructor-name {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-light);
}

.instructor-career {
    list-style: none;
    padding: 0;
    margin: 0 0 28px 0;
}

.instructor-career li {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 400;
    line-height: 1.6;
    padding: 5px 0;
    padding-left: 16px;
    position: relative;
}

.instructor-career li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 1px;
    background: var(--accent);
}

.instructor-quote {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    font-style: italic;
    padding: 20px 0 0;
    margin: 0;
    border: none;
    border-top: 1px solid var(--border-light);
    position: relative;
}

.instructor-quote::before {
    content: '"';
    font-family: var(--font-display);
    font-size: 48px;
    color: var(--accent);
    position: absolute;
    top: 8px;
    left: -4px;
    line-height: 1;
    opacity: 0.4;
}

/* ── 10. Reviews ── */
.detail-reviews {
    padding: 100px 0;
    background: var(--bg-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-light);
}

.review-card {
    background: var(--white);
    padding: 40px 32px;
    transition: all 0.3s;
}

.review-card--has-img {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.review-card-thumb {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.review-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.review-card-content {
    padding: 28px 24px;
}

.review-card:hover {
    background: var(--bg-warm);
}

.review-stars {
    display: flex;
    gap: 2px;
    margin-bottom: 20px;
    color: var(--accent);
}

.review-stars svg {
    width: 14px;
    height: 14px;
}

.review-text {
    font-family: var(--font-serif);
    font-size: 15px;
    color: var(--text);
    line-height: 1.8;
    font-weight: 400;
    margin-bottom: 24px;
    min-height: 80px;
}

.review-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.review-name {
    font-size: 13px;
    font-weight: 400;
    color: var(--black);
}

.review-class {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

/* ── 11. Targets + Strengths ── */
.detail-targets {
    padding: 0;
    background: var(--white);
}

.targets-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-height: 520px;
}

/* Recommended (left) - background image */
.targets-content {
    position: relative;
    overflow: hidden;
}

.targets-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.3);
    transition: transform 0.8s ease;
}

.targets-content:hover .targets-bg {
    transform: scale(1.03);
}

.targets-inner {
    position: relative;
    z-index: 1;
    padding: 60px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.targets-content h2 {
    font-family: var(--font-display);
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 8px;
}

.targets-content h2::after {
    content: attr(data-kr);
    display: block;
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--white);
    text-transform: none;
    font-style: normal;
    margin-top: 8px;
    margin-bottom: 32px;
}

.target-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
}

.target-check {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 1px solid rgba(255,255,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

.target-check svg {
    width: 12px;
    height: 12px;
    stroke: var(--accent);
}

.target-item span {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    font-weight: 400;
    line-height: 1.6;
}

/* Strengths (right) - dark background */
.strengths-content {
    padding: 60px;
    background: var(--black);
    color: var(--white);
}

.strengths-content h2 {
    font-family: var(--font-display);
    font-size: 11px;
    color: rgba(255,255,255,0.4);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 8px;
}

.strengths-content h2::after {
    content: attr(data-kr);
    display: block;
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--white);
    text-transform: none;
    font-style: normal;
    margin-top: 8px;
    margin-bottom: 32px;
}

.strength-item {
    padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.strength-item h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 400;
    color: var(--white);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.strength-item h3 svg {
    width: 20px;
    height: 20px;
    stroke: #8b7355;
    flex-shrink: 0;
    background: rgba(139, 115, 85, 0.15);
    border-radius: 50%;
    padding: 8px;
    width: 36px;
    height: 36px;
    box-sizing: content-box;
}

.strength-item p {
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    line-height: 1.8;
    font-weight: 400;
    padding-left: 50px;
}

/* ── 12. CTA ── */
.detail-cta {
    background: #1a1a1a;
    padding: 100px 0;
}

.cta-inner {
    text-align: center;
    color: #fff;
}

.cta-inner h2 {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 400;
    margin-bottom: 16px;
    color: #fff;
    letter-spacing: -0.01em;
}

.cta-inner p {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 40px;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn-cta-primary {
    padding: 16px 42px;
    background: #8b7355;
    color: #fff;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.06em;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    text-decoration: none;
    display: inline-block;
}

.btn-cta-primary:hover {
    background: #a08968;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139, 115, 85, 0.3);
}

.btn-cta-outline {
    padding: 16px 42px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.25);
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.06em;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    font-family: var(--font-sans);
    text-decoration: none;
    display: inline-block;
}

.btn-cta-outline:hover {
    background: #fff;
    color: #1a1a1a;
    border-color: #fff;
}

/* ── 13. Related Classes ── */
.detail-related {
    padding: 80px 0 100px;
    background: var(--bg-light);
}

.related-header {
    margin-bottom: 40px;
}

.related-header h2 {
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    margin-bottom: 8px;
}

.related-header h2::after {
    content: attr(data-kr);
    display: block;
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--black);
    text-transform: none;
    font-style: normal;
    margin-top: 8px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
}

.related-card {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
}

.related-card-image {
    position: absolute;
    inset: 0;
}

.related-card-image img,
.related-card-image .placeholder-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    transition: transform 0.8s var(--ease);
}

.related-card:hover .related-card-image img,
.related-card:hover .related-card-image .placeholder-image {
    transform: scale(1.06);
}

.related-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 30%, rgba(26,26,26,0.75));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    transition: background 0.4s var(--ease);
}

.related-card:hover .related-card-overlay {
    background: linear-gradient(transparent 20%, rgba(26,26,26,0.85));
}

.related-card-title {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 400;
    color: var(--white);
    margin-bottom: 4px;
}

.related-card-sub {
    font-size: 11px;
    color: rgba(255,255,255,0.6);
    font-weight: 400;
}

.related-card-meta {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.related-card-meta span {
    font-size: 10px;
    padding: 3px 8px;
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
}

/* ── Language Toggle ── */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-right: 12px;
}

.lang-btn {
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
    font-family: var(--font-sans);
}

.lang-btn.active {
    color: var(--black);
    font-weight: 500;
}

.lang-btn:hover { color: var(--black); }

.lang-divider {
    color: var(--border);
    font-size: 11px;
    user-select: none;
}

/* ── Coming Soon overlay ── */
.coming-soon-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    backdrop-filter: blur(2px);
}

.coming-soon-text {
    font-family: var(--font-display);
    font-size: 14px;
    color: #8b7355;
    letter-spacing: 4px;
    text-transform: uppercase;
    font-style: italic;
    font-weight: 500;
}

/* ── Class Video Banner ── */
.class-video-banner {
    width: 100%;
    margin: 0;
    padding: 0;
}

.class-video-wrap {
    position: relative;
    width: 100%;
    height: 420px;
    overflow: hidden;
}

.class-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.class-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.35);
}

.class-video-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 1;
}

.class-video-label {
    font-family: var(--font-display, 'Cormorant Garamond', serif);
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
    font-style: italic;
}

.class-video-title {
    font-family: 'Noto Serif KR', serif;
    font-size: 26px;
    font-weight: 400;
    color: #fff;
    line-height: 1.6;
    letter-spacing: -0.3px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

@media (max-width: 768px) {
    .class-video-wrap {
        height: 300px;
    }
    .class-video-title {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .class-video-wrap {
        height: 220px;
    }
    .class-video-title {
        font-size: 17px;
    }
    .class-video-label {
        font-size: 11px;
    }
}

/* ── Photo Showcase (2-col large photos) ── */
.photo-showcase {
    padding: 0;
    overflow: hidden;
}

.photo-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.photo-showcase-item {
    height: 400px;
    overflow: hidden;
    position: relative;
}

.photo-showcase-item .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
}

.photo-showcase-item:hover .placeholder-image {
    transform: scale(1.05);
}

/* ── Mood Banner (full-width dark atmospheric) ── */
.mood-banner {
    position: relative;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mood-banner-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.35);
}

.mood-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    max-width: 600px;
    padding: 0 24px;
}

.mood-banner-label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    font-style: italic;
    opacity: 0.6;
    margin-bottom: 16px;
}

.mood-banner-title {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.mood-banner-desc {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.7;
    font-weight: 300;
}

/* ── Product Strip (3-col photos) ── */
.product-strip {
    padding: 0;
    overflow: hidden;
}

.product-strip-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.product-strip-item {
    height: 320px;
    overflow: hidden;
    position: relative;
}

.product-strip-item .placeholder-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
}

.product-strip-item:hover .placeholder-image {
    transform: scale(1.05);
}

.product-strip-item .strip-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 24px 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    color: #fff;
}

.strip-caption span {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-style: italic;
    opacity: 0.8;
}

/* ══════════════════════════════════
   Responsive
   ══════════════════════════════════ */

@media (max-width: 1024px) {
    .edu-sub-grid--wide { grid-template-columns: repeat(3, 1fr); }

    .class-grid { grid-template-columns: repeat(3, 1fr); }
    .related-grid { grid-template-columns: repeat(3, 1fr); }
    .objectives-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .extras-grid { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .student-works-grid { grid-template-columns: repeat(3, 1fr); }

    .overview-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .info-card { position: static; }

    .instructor-layout,
    .targets-layout { grid-template-columns: 1fr; }
    .targets-layout { min-height: auto; }
    .targets-content { min-height: 320px; }
    .targets-inner { padding: 40px 24px; }
    .strengths-content { padding: 40px 24px; }

    .gallery-grid { grid-auto-rows: 200px; }
}

@media (max-width: 768px) {
    .edu-category { padding: 60px 0; }
    .edu-cat-title { font-size: 26px; }
    .edu-landing-card { aspect-ratio: 16/9; }
    .edu-landing-overlay { padding: 28px 32px; }
    .edu-landing-desc { font-size: 16px; }
    .edu-sub-grid,
    .edu-sub-grid--wide { grid-template-columns: repeat(2, 1fr); }

    .class-hero { padding: 140px 0 60px; }
    .class-hero h1,
    .page-hero--dark.education-hero h1 { font-size: 42px; letter-spacing: 6px; }

    .filter-list { overflow-x: auto; justify-content: flex-start; padding: 0 20px; -webkit-overflow-scrolling: touch; scrollbar-width: none; -ms-overflow-style: none; }
    .filter-list::-webkit-scrollbar { display: none; }
    .filter-btn { padding: 16px 20px; white-space: nowrap; font-size: 12px; }

    .class-grid { grid-template-columns: repeat(2, 1fr); }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .reviews-grid { grid-template-columns: 1fr; }

    .detail-hero { height: 50vh; min-height: 360px; }
    .detail-hero h1 { font-size: 28px; }
    .detail-hero-actions { flex-direction: column; align-items: center; }

    .overview-layout { gap: 32px; }
    .overview-content h2 { font-size: 22px; }
    .section-header h2::after { font-size: 22px; }

    .objectives-grid { grid-template-columns: 1fr 1fr; }
    .objective-card { padding: 32px 20px; }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 180px;
    }
    .gallery-item-large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .curriculum-item { grid-template-columns: 60px 1fr; gap: 16px; }
    .curriculum-item.has-image { grid-template-columns: 80px 60px 1fr; }
    .curriculum-thumb { width: 80px; height: 64px; }

    .mid-cta-inner { flex-direction: column; text-align: center; }
    .student-works-grid { grid-template-columns: repeat(2, 1fr); }

    .process-steps {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }
    .process-step {
        max-width: 100%;
        padding: 20px 0;
    }
    .process-connector {
        padding-top: 0;
        transform: rotate(90deg);
    }

    .instructor-content,
    .targets-content,
    .strengths-content { padding: 32px 20px; }

    .features-grid { grid-template-columns: 1fr; }
    .cta-actions { flex-direction: column; align-items: center; }

    .level-tabs { overflow-x: auto; justify-content: flex-start; -webkit-overflow-scrolling: touch; scrollbar-width: none; -ms-overflow-style: none; }
    .level-tabs::-webkit-scrollbar { display: none; }
    .level-tab { white-space: nowrap; }

    .photo-showcase-grid { grid-template-columns: 1fr; }
    .photo-showcase-item { height: 260px; }
    .mood-banner { height: 320px; }
    .mood-banner-title { font-size: 22px; }
    .product-strip-grid { grid-template-columns: 1fr; }
    .product-strip-item { height: 240px; }
}

@media (max-width: 480px) {
    .edu-category { padding: 48px 0; }
    .edu-landing-card { aspect-ratio: 4/3; }
    .edu-landing-overlay { padding: 24px; }
    .edu-landing-desc { font-size: 15px; }
    .edu-sub-grid,
    .edu-sub-grid--wide { grid-template-columns: 1fr; }

    .class-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .class-hero h1 { font-size: 32px; letter-spacing: 4px; }
    .objectives-grid { grid-template-columns: 1fr; }

    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 200px;
    }
    .gallery-item-large {
        grid-column: span 1;
    }

    .info-card { padding: 28px 20px; }
    .curriculum-item.has-image { grid-template-columns: 1fr; gap: 12px; }
    .curriculum-thumb { width: 100%; height: 160px; }
    .student-works-grid { grid-template-columns: repeat(2, 1fr); }
    .mid-cta-actions { flex-direction: column; width: 100%; }
    .btn-mid-cta, .btn-mid-cta-outline { text-align: center; }

    .photo-showcase-item { height: 200px; }
    .mood-banner { height: 280px; }
    .mood-banner-title { font-size: 19px; }
    .product-strip-item { height: 200px; }
}

/* ========================================
   Certification Trust Section
   ======================================== */

/* ── Certificate Issuance Section ── */
.cert-trust-section {
    background: #1a1a1a;
    padding: 100px 0;
    text-align: center;
}

.cert-trust-title {
    font-family: var(--font-serif, 'Noto Serif KR', serif);
    font-size: 32px;
    font-weight: 400;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 0.04em;
}

.cert-trust-subtitle {
    font-family: var(--font-sans, 'Noto Sans KR', sans-serif);
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 40px;
    letter-spacing: 0.02em;
}

/* ── Stats Bar ── */
.cert-stats-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    max-width: 680px;
    margin: 0 auto 60px;
    padding: 28px 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(139,115,85,0.25);
    border-radius: 16px;
}

.cert-stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.cert-stat-number {
    font-family: var(--font-display, 'Cormorant Garamond', serif);
    font-size: 36px;
    font-weight: 600;
    color: #8b7355;
    letter-spacing: 1px;
    line-height: 1;
}

.cert-stat-label {
    font-family: var(--font-sans, 'Noto Sans KR', sans-serif);
    font-size: 13px;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.03em;
}

.cert-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(139,115,85,0.3);
    flex-shrink: 0;
}

/* ── Certificate Issue Grid ── */
.cert-issue-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ── Certificate Card ── */
.cert-issue-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(139,115,85,0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.25,0.46,0.45,0.94), box-shadow 0.4s ease, border-color 0.4s ease;
}

.cert-issue-card:hover {
    transform: translateY(-8px);
    border-color: rgba(139,115,85,0.5);
    box-shadow: 0 16px 48px rgba(139,115,85,0.18), 0 0 24px rgba(139,115,85,0.08);
}

/* ── Certificate Showcase (Image + Emblem) ── */
.cert-showcase {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    margin-bottom: 72px;
}

.cert-showcase-item {
    text-align: center;
}

.cert-showcase-image {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(0,0,0,0.25);
    background: #fff;
}

/* 인증서 사진 */
.cert-showcase-item:first-child .cert-showcase-image {
    width: 480px;
    height: 320px;
}

.cert-showcase-item:first-child .cert-showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 엠블럼 - 인증서와 높이 맞춤 */
.cert-showcase-emblem .cert-showcase-image {
    width: 280px;
    height: 320px;
    background: transparent;
    box-shadow: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-showcase-emblem .cert-showcase-image img {
    width: 280px;
    height: 280px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 4px 20px rgba(139,115,85,0.3));
}

@media (max-width: 768px) {
    .cert-showcase {
        flex-direction: column;
        gap: 32px;
    }
    .cert-showcase-item:first-child .cert-showcase-image {
        width: 100%;
        height: 240px;
    }
    .cert-showcase-emblem .cert-showcase-image {
        width: 200px;
        height: 240px;
    }
}

/* ── Certificate Showcase Caption ── */
.cert-showcase-caption {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.5px;
}

/* ── Certificate Card Icon ── */
.cert-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(139,115,85,0.1);
    border: 1px solid rgba(139,115,85,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8b7355;
    margin: 0 auto 20px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.cert-issue-card:hover .cert-card-icon {
    background: #8b7355;
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(139,115,85,0.3);
}

.cert-issue-level {
    font-family: var(--font-en, 'Cormorant Garamond', serif);
    font-size: 11px;
    color: #8b7355;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* ── Certificate Card Content ── */
.cert-issue-card {
    padding: 40px 24px 32px;
    text-align: center;
}

.cert-issue-name {
    font-family: var(--font-serif, 'Noto Serif KR', serif);
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.cert-issue-desc {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    margin-bottom: 18px;
    line-height: 1.5;
}

.cert-issue-link {
    display: inline-block;
    font-family: var(--font-display, 'Cormorant Garamond', serif);
    font-size: 13px;
    font-weight: 600;
    color: #8b7355;
    letter-spacing: 1px;
    padding: 8px 24px;
    border: 1px solid rgba(139,115,85,0.35);
    border-radius: 24px;
    background: rgba(139,115,85,0.06);
    text-decoration: none;
    transition: all 0.3s ease;
}

.cert-issue-link:hover {
    background: rgba(139,115,85,0.15);
    border-color: #8b7355;
    color: #c4a77d;
}

/* ── Certificate Info Box (Class Detail) ── */
.cert-info-box {
    margin-top: 24px;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(139,115,85,0.08) 0%, rgba(139,115,85,0.03) 100%);
    border: 1px solid rgba(139,115,85,0.25);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.cert-info-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(139,115,85,0.12);
    border: 1px solid rgba(139,115,85,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-info-icon svg {
    width: 24px;
    height: 24px;
}

.cert-info-content {
    flex: 1;
}

.cert-info-label {
    font-size: 11px;
    color: #8b7355;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 4px;
    font-family: var(--font-display, 'Cormorant Garamond', serif);
}

.cert-info-name {
    font-family: var(--font-serif, 'Noto Serif KR', serif);
    font-size: 15px;
    font-weight: 500;
    color: var(--text, #1a1a1a);
    margin-bottom: 2px;
}

.cert-info-issuer {
    font-size: 13px;
    color: var(--text-muted, #888);
}

.cert-info-level {
    flex-shrink: 0;
    font-family: var(--font-display, 'Cormorant Garamond', serif);
    font-size: 11px;
    font-weight: 600;
    color: #8b7355;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 14px;
    border: 1px solid rgba(139,115,85,0.35);
    border-radius: 20px;
    background: rgba(139,115,85,0.06);
}

/* ── Responsive: Cert Issue Section ── */
@media (max-width: 1100px) {
    .cert-issue-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cert-trust-section {
        padding: 72px 0;
    }
    .cert-trust-title {
        font-size: 26px;
    }
    .cert-trust-subtitle {
        margin-bottom: 32px;
    }
    .cert-stats-bar {
        padding: 20px 24px;
        margin-bottom: 44px;
    }
    .cert-stat-number {
        font-size: 28px;
    }
    .cert-stat-label {
        font-size: 12px;
    }
    .cert-stat-divider {
        height: 32px;
    }
    .cert-issue-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .cert-preview-inner {
        min-height: 170px;
        padding: 22px 16px 20px;
    }
    .cert-preview-header {
        font-size: 17px;
        letter-spacing: 5px;
    }
    .cert-preview-name {
        font-size: 15px;
    }
    .cert-issue-name {
        font-size: 14px;
    }
    .cert-issue-info {
        padding: 18px 16px 22px;
    }
    .cert-info-box {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    .cert-info-level {
        align-self: center;
    }
}

@media (max-width: 480px) {
    .cert-issue-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }
    .cert-trust-title {
        font-size: 22px;
    }
    .cert-stats-bar {
        flex-direction: column;
        gap: 16px;
        padding: 24px 20px;
    }
    .cert-stat-divider {
        width: 40px;
        height: 1px;
    }
    .cert-stat-number {
        font-size: 30px;
    }
}

/* ========================================
   기업 · 단체 출강 섹션
   ======================================== */

.edu-corporate-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 48px;
}

.edu-corporate-intro {
    font-family: var(--font-serif, 'Noto Serif KR', serif);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text, #1a1a1a);
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.edu-corporate-intro strong {
    color: #8b7355;
    font-weight: 600;
}

.edu-corporate-desc p {
    font-size: 15px;
    line-height: 1.85;
    color: var(--text-muted, #666);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.edu-corporate-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 32px 0;
}

.edu-corp-tag {
    display: inline-block;
    padding: 8px 18px;
    font-size: 13px;
    color: #8b7355;
    border: 1px solid rgba(139, 115, 85, 0.3);
    border-radius: 24px;
    background: rgba(139, 115, 85, 0.04);
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
}

.edu-corp-tag:hover {
    background: rgba(139, 115, 85, 0.1);
    border-color: #8b7355;
}

.edu-corporate-cta {
    display: flex;
    gap: 12px;
    margin-top: 36px;
}

.edu-corporate-image {
    border-radius: 12px;
    overflow: hidden;
}

.edu-corporate-image .placeholder-image {
    border-radius: 12px;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.edu-corporate:hover .edu-corporate-image .placeholder-image {
    transform: scale(1.03);
}

@media (max-width: 900px) {
    .edu-corporate-content {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .edu-corporate-image .placeholder-image {
        min-height: 280px !important;
    }
    .edu-corporate-intro {
        font-size: 20px;
    }
    .edu-corporate-cta {
        flex-direction: column;
    }
    .edu-corporate-cta a {
        text-align: center;
    }
}

/* 모바일 텍스트 줄바꿈 최적화 */
@media (max-width: 600px) {
    p, li, td, div, h2, h3 { word-break: keep-all; overflow-wrap: break-word; }
}