/* ==========================================================================
   Topic cluster (mobile & desktop)
   - .cluster-box: kotak "Bagian dari" di halaman artikel
   - .cluster-pillar, .cluster-questions: halaman pillar /series/{slug}
   ========================================================================== */

:root {
    --cluster-surface: #f8fafc;
    --cluster-border: #e2e8f0;
    --cluster-accent: #e30003;
    --cluster-text: #1e293b;
    --cluster-muted: #64748b;
}

body.is-dark-mode,
body.dark {
    --cluster-surface: #1a1a1a;
    --cluster-border: #2e2e33;
    --cluster-accent: #ff5a5c;
    --cluster-text: #f1f5f9;
    --cluster-muted: #94a3b8;
}

/* ---- Kotak "Bagian dari" ---- */
.cluster-box {
    margin: 24px 0;
    padding: 16px 18px;
    border: 1px solid var(--cluster-border);
    border-left: 3px solid var(--cluster-accent);
    border-radius: 12px;
    background: var(--cluster-surface);
}

.cluster-box__label {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--cluster-accent);
}

.cluster-box a {
    color: var(--cluster-text);
    text-decoration: none;
}

.cluster-box a:hover {
    color: var(--cluster-accent);
    text-decoration: underline;
}

.cluster-box .cluster-box__title {
    display: block;
    margin-top: 4px;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.35;
}

.cluster-box__list {
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
}

.cluster-box__list li {
    position: relative;
    padding: 6px 0 6px 16px;
    border-top: 1px solid var(--cluster-border);
    font-size: 15px;
    line-height: 1.45;
}

.cluster-box__list li::before {
    content: "";
    position: absolute;
    top: 14px;
    left: 2px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cluster-muted);
}

.cluster-box .cluster-box__more {
    display: inline-block;
    margin-top: 10px;
    font-size: 14px;
    font-weight: 700;
    color: var(--cluster-accent);
}

/* ---- Halaman pillar ---- */
.cluster-pillar {
    margin-bottom: 32px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--cluster-text);
}

.cluster-pillar h2,
.cluster-pillar h3 {
    margin: 28px 0 12px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--cluster-text);
}

.cluster-pillar h2 { font-size: 1.4rem; }
.cluster-pillar h3 { font-size: 1.2rem; }

.cluster-pillar p {
    margin-bottom: 16px;
}

.cluster-pillar a {
    color: var(--cluster-accent);
}

.cluster-pillar img,
.cluster-pillar iframe,
.cluster-pillar video {
    max-width: 100%;
}

.cluster-pillar img {
    height: auto;
}

/* Tabel lebar di isi pillar digulir sendiri, tidak melebarkan halaman */
.cluster-pillar table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
}

.cluster-pillar,
.cluster-box,
.cluster-questions {
    overflow-wrap: anywhere;
}

.cluster-questions {
    margin-bottom: 32px;
    padding: 18px 20px;
    border: 1px solid var(--cluster-border);
    border-radius: 12px;
    background: var(--cluster-surface);
}

.cluster-questions .cluster-questions__title {
    margin: 0 0 8px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--cluster-text);
}

.cluster-questions__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.cluster-questions__list li {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 0;
    border-top: 1px solid var(--cluster-border);
}

.cluster-questions__list li:first-child {
    border-top: 0;
}

.cluster-questions__query {
    font-weight: 600;
    line-height: 1.45;
    color: var(--cluster-text);
}

.cluster-questions .cluster-questions__link {
    font-size: 0.9rem;
    line-height: 1.45;
    color: var(--cluster-muted);
    text-decoration: none;
}

.cluster-questions .cluster-questions__link::before {
    content: "\2192\00a0";
}

.cluster-questions .cluster-questions__link:hover {
    color: var(--cluster-accent);
    text-decoration: underline;
}