/* ===== Base ===== */
:root {
    --nbk-bg: white;
    --nbk-ink: #2a2730;
    --nbk-muted: #6a6a74;
    --nbk-card: #ffffff;
    --nbk-accent: #7b58e6; /* purple button */
    --nbk-date: #f2f2f4; /* date box bg */
    --nbk-border: #e9e6e2;
    --nbk-radius: 22px;
    --nbk-max: 1160px;
}

.nbk-page {
    font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial,
        sans-serif;
    color: var(--nbk-ink);
}

/* top motif strip */
.nbk-motif {
    height: 36px;
    background-image: linear-gradient(
            45deg,
            rgba(0, 0, 0, 0.06) 25%,
            transparent 25%
        ),
        linear-gradient(-45deg, rgba(0, 0, 0, 0.06) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.06) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(0, 0, 0, 0.06) 75%);
    background-size: 24px 24px;
    background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
    border-bottom: 1px solid var(--nbk-border);
}

/* ===== Hero ===== */
.nbk-hero {
    position: relative;
    max-width: var(--nbk-max);
    margin: 28px auto 36px;
    min-height: 360px;
}

.nbk-hero-media {
    border-radius: 4px;
    overflow: hidden;
}
.nbk-hero-media img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
    filter: saturate(92%);
}

/* white card overlay on left */
.nbk-hero-card {
    position: absolute;
    top: 28px;
    left: 24px;
    max-width: 420px;
    background: var(--nbk-card);
    border-radius: 6px;
    box-shadow: 0 10px 28px rgba(27, 23, 20, 0.14);
    padding: 28px 28px 30px;
}

.nbk-eyebrow {
    font-size: 12px;
    letter-spacing: 0.08em;
    color: #6b6ea0;
    font-weight: 700;
    text-transform: uppercase;
    display: block;
    margin-bottom: 10px;
}

.nbk-hero-title {
    font-size: 32px;
    line-height: 1.2;
    margin: 0 0 10px 0;
    font-weight: 700;
}

.nbk-hero-text {
    color: var(--nbk-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0 0 18px 0;
}

.nbk-btn {
    display: inline-block;
    padding: 11px 18px;
    border-radius: 22px;
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    background: var(--nbk-accent);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
    box-shadow: 0 6px 14px rgba(123, 88, 230, 0.28);
}
.nbk-btn:hover {
    transform: translateY(-1px);
}

/* ===== Main Grid ===== */
.nbk-main {
    max-width: var(--nbk-max);
    margin: 0 auto 70px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 34px;
}

.nbk-stream-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 18px;
}
.nbk-stream-item {
    margin: 0;
    border-radius: 6px;
    overflow: hidden;
    background: #ddd;
}
.nbk-stream-item img {
    width: 100%;
    height: 180px;
    display: block;
    object-fit: cover;
}

.nbk-section-label {
    font-size: 12px;
    letter-spacing: 0.08em;
    color: #6b6ea0;
    font-weight: 800;
    text-transform: uppercase;
    margin: 8px 0 6px;
}

.nbk-article-title {
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 6px;
}

/* ===== Sidebar ===== */
.nbk-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0 6px;
}
.nbk-sidebar-head span {
    font-weight: 800;
    font-size: 14px;
    letter-spacing: 0.06em;
    color: #6b6ea0;
}
.nbk-sidebar-motif {
    height: 12px;
    width: 120px;
    background-image: linear-gradient(
            45deg,
            rgba(0, 0, 0, 0.06) 25%,
            transparent 25%
        ),
        linear-gradient(-45deg, rgba(0, 0, 0, 0.06) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.06) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(0, 0, 0, 0.06) 75%);
    background-size: 16px 16px;
    border-radius: 2px;
}

.nbk-event {
    display: flex;
    gap: 14px;
    background: #fff;
    border: 1px solid var(--nbk-border);
    border-radius: 6px;
    padding: 14px;
    margin-bottom: 12px;
    align-items: flex-start;
}

.nbk-event-date {
    min-width: 66px;
    text-align: center;
    background: var(--nbk-date);
    border-radius: 4px;
    padding: 10px 8px 8px;
    line-height: 1;
    border: 1px solid #dcdbe0;
}
.nbk-event-date strong {
    font-size: 24px;
    display: block;
}
.nbk-event-date span {
    display: block;
    font-size: 11px;
    color: #6f6f7a;
    margin-top: 2px;
}

.nbk-event-body h4 {
    font-size: 14px;
    margin: 2px 0 6px;
    line-height: 1.4;
}
.nbk-event-body p {
    font-size: 12px;
    color: var(--nbk-muted);
    margin: 0;
    line-height: 1.6;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .nbk-hero-card {
        max-width: 56%;
    }
}
@media (max-width: 860px) {
    .nbk-hero {
        min-height: auto;
    }
    .nbk-hero-media img {
        height: 360px;
    }
    .nbk-hero-card {
        position: static;
        margin: -80px 18px 16px;
    }
    .nbk-main {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 520px) {
    .nbk-hero-card {
        margin: -70px 14px 16px;
        padding: 22px;
    }
    .nbk-hero-title {
        font-size: 26px;
    }
    .nbk-stream-row {
        grid-template-columns: 1fr;
    }
}