/* nk-collapse-cause: L3 우이미지/좌텍스트 / HD1 좌라벨+우태그 / HR3 좌텍스트+우SVG / CT6 clip-path 2버튼 / FT1 3단그리드 / CF7 원인결과형 */
.nk-collapse-cause {
    font-family: 'Nanum Gothic', sans-serif;
    background: #FCF5F6;
    color: #3a2226;
}

.nk-collapse-cause h1,
.nk-collapse-cause h2,
.nk-collapse-cause h3,
.nk-collapse-cause h4 {
    font-family: 'Bebas Neue', 'Nanum Gothic', sans-serif;
    letter-spacing: 0.02em;
    color: #63232B;
}

/* HD1 */
.nk-collapse-cause .nk-hd {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eccfd3;
    margin-bottom: 2rem;
}

.nk-collapse-cause .nk-hd-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #63232B;
}

.nk-collapse-cause .nk-hd-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nk-collapse-cause .nk-tag {
    display: inline-block;
    font-size: 0.78rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: #f4e0e2;
    color: #63232B;
    border: 1px solid #e6bfc4;
}

/* HR3: 좌 텍스트 / 우 SVG */
.nk-collapse-cause .nk-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    background: #ffffff;
    border: 1px solid #eccfd3;
    border-radius: 0.75rem;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
}

.nk-collapse-cause .nk-hero h1 {
    font-size: 2.5rem;
    margin: 0 0 0.75rem;
    line-height: 1.15;
}

.nk-collapse-cause .nk-hero-sub {
    margin: 0;
    color: #5c3c41;
    font-size: 1rem;
    max-width: 32rem;
}

.nk-collapse-cause .nk-hero-svg {
    width: 96px;
    height: 96px;
    flex: none;
    fill: #f4e0e2;
    stroke: #4E7A4A;
    stroke-width: 2;
}

@media (max-width: 640px) {
    .nk-collapse-cause .nk-hero {
        flex-direction: column;
        text-align: left;
    }
}

/* L3: 우이미지/좌텍스트 분할 */
.nk-collapse-cause .nk-split {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.nk-collapse-cause .nk-split-text {
    flex: 1.2;
}

.nk-collapse-cause .nk-split-figure {
    flex: 1;
    margin: 0;
}

@media (max-width: 768px) {
    .nk-collapse-cause .nk-split {
        flex-direction: column;
    }
}

.nk-collapse-cause .nk-section {
    margin-bottom: 2.25rem;
}

.nk-collapse-cause .nk-section h2 {
    font-size: 1.6rem;
    margin: 0 0 1rem;
}

.nk-collapse-cause .nk-section h3 {
    font-size: 1.05rem;
    color: #4E7A4A;
    margin: 1.25rem 0 0.5rem;
}

.nk-collapse-cause .nk-section p {
    line-height: 1.85;
    margin: 0 0 1rem;
}

.nk-collapse-cause .nk-section p:last-child {
    margin-bottom: 0;
}

.nk-collapse-cause .nk-link {
    color: #4E7A4A;
    font-weight: 700;
    text-decoration: underline dotted;
    text-underline-offset: 2px;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
}

.nk-collapse-cause .nk-link:hover {
    color: #3a5c37;
}

.nk-collapse-cause .nk-link:focus-visible {
    outline: 2px solid #4E7A4A;
    outline-offset: 2px;
}

.nk-collapse-cause .nk-figure {
    margin: 2rem auto;
    max-width: 100%;
    text-align: center;
}

.nk-collapse-cause .nk-figure img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    display: block;
    margin: 0 auto;
}

.nk-collapse-cause .nk-figure figcaption {
    font-size: 0.85rem;
    color: #8a5b61;
    margin-top: 0.5rem;
}

/* CT6: clip-path 대각선 + 버튼 2개 세로 */
.nk-collapse-cause .nk-cta-clip {
    background: #63232B;
    clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
    padding: 3rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 2.5rem;
}

.nk-collapse-cause .nk-cta-btn {
    display: inline-block;
    min-width: 15rem;
    background: #ffffff;
    color: #63232B;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.8rem 2rem;
    border-radius: 0.375rem;
    text-decoration: none;
    border: 2px solid #ffffff;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.nk-collapse-cause .nk-cta-btn-outline {
    background: transparent;
    color: #ffffff;
}

.nk-collapse-cause .nk-cta-btn:hover {
    background: #f4e0e2;
}

.nk-collapse-cause .nk-cta-btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
}

.nk-collapse-cause .nk-cta-btn:focus-visible {
    outline: 3px solid #4E7A4A;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .nk-collapse-cause .nk-cta-btn {
        transition: none;
    }
}

/* FT1: 3단 그리드 */
.nk-collapse-cause .nk-ft {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    border-top: 1px solid #eccfd3;
    padding-top: 1.75rem;
}

.nk-collapse-cause .nk-ft-col h4 {
    font-size: 0.85rem;
    margin: 0 0 0.6rem;
}

.nk-collapse-cause .nk-ft-col .nk-tag {
    margin: 0 0.4rem 0.4rem 0;
}

.nk-collapse-cause .nk-ft-note {
    font-size: 0.82rem;
    color: #8a5b61;
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 640px) {
    .nk-collapse-cause .nk-ft {
        grid-template-columns: 1fr;
    }
}