/* WHY? F1 공개 허브: 질문 중심 탐색 카드와 카테고리별 SSR 목록. */

.why-hub-page {
    padding: 1.15rem 0 3.5rem;
}

.why-hub-breadcrumb {
    margin-bottom: 1.4rem;
    overflow: hidden;
}

.why-hub-breadcrumb ol {
    display: flex;
    align-items: center;
    gap: 0.42rem;
    margin: 0;
    padding: 0;
    color: #777;
    font-size: 0.78rem;
    list-style: none;
    white-space: nowrap;
}

.why-hub-breadcrumb li:last-child {
    overflow: hidden;
    color: #aaa;
    text-overflow: ellipsis;
}

.why-hub-breadcrumb a {
    color: #999;
    text-decoration: none;
}

.why-hub-breadcrumb a:hover,
.why-hub-breadcrumb a:focus-visible {
    color: #f5f5f5;
    text-decoration: underline;
}

.why-hub-hero {
    max-width: 46rem;
    margin-bottom: 1.85rem;
}

.why-hub-brand,
.why-question-category {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.4;
}

.why-hub-brand {
    display: inline-block;
    margin: 0 0 0.45rem;
    color: #f87171;
}

.why-hub-hero h1 {
    margin: 0;
    color: #f5f5f5;
    font-size: clamp(1.7rem, 6vw, 2.45rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

.why-hub-lead {
    margin: 0.75rem 0 0;
    color: #c8c8c8;
    font-size: 1rem;
    line-height: 1.75;
}

.why-hub-explorer-intro {
    margin: 0 0 1.05rem;
    padding-left: 0.7rem;
    border-left: 3px solid #dc2626;
    color: #bbb;
    font-size: 0.9rem;
    line-height: 1.55;
}

.why-category-section {
    margin-bottom: 2.35rem;
}

.why-category-section h2 {
    margin: 0 0 0.8rem;
    padding-left: 0.65rem;
    border-left: 3px solid #dc2626;
    color: #f5f5f5;
    font-size: 1.2rem;
    line-height: 1.4;
}

.why-question-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.why-question-card {
    display: block;
    min-width: 0;
    padding: 1rem;
    border: 1px solid #2a2a2a;
    border-radius: 0.65rem;
    background: #111;
    color: inherit;
    text-decoration: none;
    transition: border-color 0.2s, background-color 0.2s;
}

.why-question-card:hover,
.why-question-card:focus-visible {
    border-color: #dc2626;
    background: #151515;
}

.why-question-card:focus-visible {
    outline: 2px solid #dc2626;
    outline-offset: 3px;
}

.why-question-card-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.why-question-category {
    margin-bottom: 0.38rem;
    color: #f87171;
}

.why-question-title {
    color: #f5f5f5;
    font-size: 1.06rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.why-question-summary {
    display: -webkit-box;
    margin-top: 0.48rem;
    overflow: hidden;
    color: #aaa;
    font-size: 0.88rem;
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.why-question-cta {
    margin-top: 0.72rem;
    color: #f87171;
    font-size: 0.8rem;
    font-weight: 700;
}

/* 텍스트가 중요한 도식을 crop하지 않도록 PC preview도 contain으로 제한한다. */
.why-question-thumbnail {
    display: none;
}

.why-hub-empty {
    max-width: 46rem;
    padding: 1.1rem;
    border: 1px solid #2a2a2a;
    border-left: 3px solid #777;
    border-radius: 0.6rem;
    background: #111;
}

.why-hub-empty h2 {
    margin: 0 0 0.4rem;
    color: #f1f1f1;
    font-size: 1.05rem;
    line-height: 1.45;
}

.why-hub-empty p {
    margin: 0;
    color: #aaa;
    font-size: 0.9rem;
    line-height: 1.65;
}

@media (min-width: 768px) {
    .why-hub-page {
        padding-top: 2rem;
    }

    .why-question-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1rem;
    }

    .why-question-card {
        height: 100%;
        padding: 1.15rem;
    }

    .why-question-card--has-diagram {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 8.5rem;
        align-items: start;
        gap: 0.85rem;
    }

    .why-question-thumbnail {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 5.5rem;
        border: 1px solid #292929;
        border-radius: 0.45rem;
        background: #0d0d0d;
        overflow: hidden;
    }

    .why-question-thumbnail img {
        display: block;
        width: 100%;
        max-height: 7.5rem;
        object-fit: contain;
    }
}

@media (max-width: 520px) {
    .why-hub-page {
        padding-top: 1rem;
    }

    .why-hub-breadcrumb {
        margin-bottom: 1rem;
    }

    .why-hub-breadcrumb ol {
        gap: 0.35rem;
        font-size: 0.74rem;
    }

    .why-hub-hero {
        margin-bottom: 1.45rem;
    }

    .why-hub-brand {
        margin-bottom: 0.35rem;
    }

    .why-hub-hero h1 {
        font-size: clamp(1.65rem, 7.2vw, 2.05rem);
        line-height: 1.25;
    }

    .why-hub-lead {
        margin-top: 0.58rem;
        font-size: 0.94rem;
        line-height: 1.62;
    }

    .why-hub-lead-break {
        display: none;
    }

    .why-hub-explorer-intro {
        margin-bottom: 0.85rem;
        font-size: 0.86rem;
    }

    .why-category-section {
        margin-bottom: 1.7rem;
    }

    .why-category-section h2 {
        margin-bottom: 0.65rem;
        font-size: 1.12rem;
    }

    .why-question-grid {
        gap: 0.6rem;
    }

    .why-question-card {
        padding: 0.85rem 0.9rem;
    }

    .why-question-category {
        margin-bottom: 0.3rem;
        font-size: 0.66rem;
    }

    .why-question-title {
        font-size: 1rem;
        line-height: 1.4;
    }

    .why-question-summary {
        margin-top: 0.4rem;
        font-size: 0.84rem;
        line-height: 1.58;
        -webkit-line-clamp: 2;
    }

    .why-question-cta {
        margin-top: 0.55rem;
        font-size: 0.76rem;
    }

    .why-hub-empty {
        padding: 0.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .why-question-card {
        transition: none;
    }
}