/* ================================================================
   KEEP LEARNING (ch-learn)
   Desktop (>=1100px): intro di kiri atas, dua kartu kaca di bawah, semua
   diposisikan dengan persentase dan teks berukuran cqw. Di bawah itu: gambar di
   atas, lalu intro dan kartu bertumpuk.
================================================================ */
.ch-learn {
    --ch-gold: #eeb592;
    --ch-ink: #fbf7f1;
    --ch-bg: #0e2038;
    position: relative;
    background: var(--ch-bg);
    color: var(--ch-ink);
    overflow: hidden;
}

.ch-learn-stage { position: relative; }
.ch-learn .ch-accent { color: var(--ch-gold); }

/* ---------- Mobile / tablet (default) ---------- */
.ch-learn-art { position: relative; }
.ch-learn-art img { display: block; width: 100%; height: auto; }

.ch-learn-art-fade {
    position: absolute;
    inset: auto 0 0 0;
    height: 40%;
    background: linear-gradient(0deg, var(--ch-bg) 4%, transparent);
}

.ch-learn-copy,
.ch-learn-cards {
    position: relative;
    width: min(100% - 40px, 760px);
    margin-inline: auto;
}

.ch-learn-copy { margin-top: -8px; }

.ch-learn-eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
    color: var(--ch-gold);
    font-size: 12px;
    line-height: 1;
    letter-spacing: .26em;
}

.ch-learn-eyebrow-line { flex: 0 0 30px; height: 1px; background: rgba(238, 181, 146, .85); }

.ch-learn-title {
    margin: 0 0 14px;
    font-size: clamp(25px, 6.8vw, 40px);
    line-height: 1.14;
    letter-spacing: -.02em;
    color: var(--ch-ink);
}

.ch-learn-desc {
    margin: 0 0 26px;
    color: rgba(251, 247, 241, .9);
    font-size: 14px;
    line-height: 1.65;
}

.ch-learn-cards {
    display: grid;
    gap: 14px;
    padding-bottom: 56px;
}

.ch-learn-card {
    padding: 22px 20px 20px;
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .05));
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 12px 34px rgba(0, 0, 0, .25), inset 0 1px 0 rgba(255, 255, 255, .18);
}

.ch-learn-card-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 14px;
    border: 1px solid rgba(238, 181, 146, .6);
    border-radius: 50%;
    color: var(--ch-gold);
}

.ch-learn-card h3 {
    margin: 0 0 4px;
    font-size: 17px;
    line-height: 1.2;
    letter-spacing: .02em;
    color: var(--ch-ink);
}

.ch-learn-card-sub {
    margin: 0 0 10px;
    color: var(--ch-gold);
    font-size: 14px;
    line-height: 1.4;
}

.ch-learn-card-desc {
    margin: 0 0 16px;
    color: rgba(251, 247, 241, .88);
    font-size: 13.5px;
    line-height: 1.6;
}

.ch-learn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--ch-gold);
    color: var(--ch-ink);
    font-size: 14px;
    line-height: 1.2;
    text-decoration: none;
    transition: gap .25s ease, color .25s ease;
}

.ch-learn-link svg { color: var(--ch-gold); }
.ch-learn-link:hover,
.ch-learn-link:focus-visible { gap: 12px; color: var(--ch-gold); }

@media (min-width: 700px) and (max-width: 1099px) {
    .ch-learn-cards { grid-template-columns: 1fr 1fr; width: min(100% - 40px, 900px); }
}

/* ---------- Desktop: overlay di atas gambar ---------- */
@media (min-width: 1100px) {
    .ch-learn-stage { container-type: inline-size; }
    .ch-learn-art-fade { display: none; }

    .ch-learn-copy,
    .ch-learn-cards { position: absolute; margin: 0; width: auto; }

    .ch-learn-copy { left: 4.9%; top: 9%; width: 46%; }

    .ch-learn-eyebrow { gap: 1.5cqw; margin-bottom: 1.4cqw; font-size: max(11px, .85cqw); }
    .ch-learn-eyebrow-line { flex-basis: 3.2cqw; }
    .ch-learn-title { margin-bottom: 1.5cqw; font-size: 2.3cqw; }
    .ch-learn-desc { margin: 0; max-width: 36cqw; font-size: max(12px, .98cqw); line-height: 1.6; }

    /* dua kartu kaca (referensi: x 4.7-71%, y 61-94.5%) */
    .ch-learn-cards {
        left: 4.7%;
        top: 60.5%;
        width: 66.5%;
        height: 34%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.2%;
        padding: 0;
    }

    .ch-learn-card {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        padding: 2.3cqw 2.4cqw 0;
        border-radius: 1.7cqw;
        background: linear-gradient(135deg, rgba(20, 36, 66, .5), rgba(20, 36, 66, .28));
    }

    .ch-learn-card-icon { width: 3.1cqw; height: 3.1cqw; margin-bottom: 1.1cqw; }
    .ch-learn-card-icon svg { width: 50%; height: 50%; }
    .ch-learn-card h3 { margin-bottom: .3cqw; font-size: 1.4cqw; }
    .ch-learn-card-sub { margin-bottom: .6cqw; font-size: max(12px, 1cqw); }
    .ch-learn-card-desc { margin-bottom: 1cqw; font-size: max(11.5px, .86cqw); line-height: 1.55; }
    .ch-learn-link { align-self: flex-start; font-size: max(12px, .9cqw); padding-bottom: .35cqw; }
}

@media (prefers-reduced-motion: reduce) {
    .ch-learn-link { transition: none; }
}