/* knowledge-luxury.css — Luxury Knowledge Page */

/* Hero */
.knowledge-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('images/knowledge/knowledge_hero.png') center/cover no-repeat;
    overflow: hidden;
}
.knowledge-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
}
.knowledge-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.knowledge-hero-content h1 {
    font-family: 'Noto Serif KR', serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 400;
    color: #fff;
    letter-spacing: 0.12em;
}
.knowledge-hero-content .lux-label {
    margin-bottom: 16px;
    color: rgba(255,255,255,0.6);
}

/* lux-label */
.lux-label {
    display: block;
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.75rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 20px;
}

/* Section base */
.k-section {
    padding: 140px 24px;
}
.k-section--white { background: #fff; }
.k-section--cream { background: #F7F5F0; }
.k-section--dark { background: #111; color: #fff; }

.k-container {
    max-width: 1100px;
    margin: 0 auto;
}

.k-section-header {
    text-align: center;
    margin-bottom: 72px;
}
.k-section-header h2 {
    font-family: 'Noto Serif KR', serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 400;
    color: #1a1a1a;
    margin-top: 12px;
}
.k-section--dark .k-section-header h2 { color: #fff; }
.k-section-header p {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.9rem;
    font-weight: 300;
    color: #777;
    margin-top: 16px;
    line-height: 1.7;
}

/* ===== Fur Types Tabs ===== */
.fur-tabs-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 24px;
    margin-bottom: 64px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 24px;
}
.fur-tab-btn {
    background: none;
    border: none;
    font-family: 'Pretendard', sans-serif;
    font-size: 0.85rem;
    font-weight: 400;
    color: #999;
    cursor: pointer;
    padding: 8px 4px;
    transition: color 0.3s;
    letter-spacing: 0.02em;
}
.fur-tab-btn:hover { color: #333; }
.fur-tab-btn.active {
    color: #1a1a1a;
    font-weight: 500;
    border-bottom: 1px solid #1a1a1a;
    margin-bottom: -25px;
    padding-bottom: 24px;
}

/* Tab content */
.fur-tab-content {
    display: none;
}
.fur-tab-content.active {
    display: block;
}
.fur-tab-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}
.fur-tab-img {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 2px;
    background: #F7F5F0;
}
.fur-tab-text h3 {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: 20px;
    color: #1a1a1a;
}
.fur-tab-text .fur-desc {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.88rem;
    font-weight: 300;
    line-height: 1.85;
    color: #555;
    margin-bottom: 28px;
}
.fur-tab-text h4 {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: #1a1a1a;
    margin-bottom: 12px;
    margin-top: 24px;
}
.fur-tab-text ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}
.fur-tab-text ul li {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.8;
    color: #555;
    padding-left: 12px;
    position: relative;
}
.fur-tab-text ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: #bbb;
    font-size: 0.7rem;
}
.fur-tab-text .fur-care-note,
.fur-tab-text .fur-quality-note {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.85;
    color: #555;
    margin-bottom: 16px;
}

/* ===== Care Methods (Numbered Steps) ===== */
.care-steps-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.care-step-row {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    padding: 48px 0;
    border-bottom: 1px solid #e8e8e8;
    align-items: start;
}
.care-step-row:first-child { padding-top: 0; }
.care-step-row:last-child { border-bottom: none; }
.care-step-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.4rem;
    font-weight: 300;
    color: #ccc;
    line-height: 1;
}
.care-step-content h3 {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.1rem;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 16px;
}
.care-step-content p {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.9;
    color: #555;
    margin-bottom: 12px;
}
.care-step-content p:last-child { margin-bottom: 0; }

/* ===== Maintenance Tips Grid ===== */
.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 56px 64px;
}
.maint-item h3 {
    font-family: 'Noto Serif KR', serif;
    font-size: 1rem;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e8e8e8;
}
.maint-item p {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.9;
    color: #555;
    margin-bottom: 12px;
}
.maint-item p:last-child { margin-bottom: 0; }

/* ===== FAQ Accordion ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid #e0e0e0;
}
.faq-item:first-child { border-top: 1px solid #e0e0e0; }
.faq-question-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 28px 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}
.faq-question-btn h3 {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    font-weight: 400;
    color: #1a1a1a;
    flex: 1;
    padding-right: 24px;
}
.faq-toggle {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    color: #999;
    flex-shrink: 0;
    transition: transform 0.3s;
    line-height: 1;
}
.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    max-height: 2000px;
    padding-bottom: 28px;
}
.faq-answer p {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.9;
    color: #555;
    margin-bottom: 12px;
}
.faq-answer ul {
    list-style: none;
    padding: 0;
    margin: 0 0 16px 0;
}
.faq-answer ul li {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.9;
    color: #555;
    padding-left: 14px;
    position: relative;
    margin-bottom: 4px;
}
.faq-answer ul li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: #999;
}

/* ===== Dark CTA ===== */
.k-cta {
    text-align: center;
}
.k-cta .lux-label { color: rgba(255,255,255,0.5); }
.k-cta h2 {
    font-family: 'Noto Serif KR', serif;
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 400;
    color: #fff;
    margin-bottom: 20px;
}
.k-cta p {
    font-family: 'Pretendard', sans-serif;
    font-size: 0.88rem;
    font-weight: 300;
    color: rgba(255,255,255,0.5);
    margin-bottom: 8px;
}
.k-cta .cta-phone {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.6rem;
    color: #fff;
    letter-spacing: 0.08em;
    margin-top: 24px;
    display: block;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .fur-tab-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .fur-tab-img {
        max-height: 300px;
        object-fit: contain;
    }
    .maintenance-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}
@media (max-width: 768px) {
    .k-section { padding: 80px 20px; }
    .care-step-row {
        grid-template-columns: 56px 1fr;
        gap: 20px;
        padding: 32px 0;
    }
    .care-step-num { font-size: 1.8rem; }
    .fur-tabs-nav { gap: 6px 16px; }
    .fur-tab-btn { font-size: 0.78rem; }
    .maintenance-grid { gap: 32px; }
}