/* ═══════════════════════════════════════════════════════════
   Body 1 – 3 Premium Styles
   Màu = CSS vars, thay đổi qua Customizer
   ═══════════════════════════════════════════════════════════ */

/* Global: tắt text-decoration khi hover toàn bộ link trong body-1 */
.b1-hero a:hover,
.b1-hpost:hover,
.b1-glass__card:hover,
.b1-minimal__card:hover,
.b1-split__card:hover,
.b1-bl-item:hover,
.b1-mosaic__big:hover,
.b1-mosaic__small:hover,
.b1-ticker-sec__featured:hover,
.b1-ticker-sec__item:hover {
    text-decoration: none;
}

.b1-badge {
    display: inline-block; padding: 3px 10px;
    background: var(--color-primary); color: var(--color-btn-text);
    font-size: .62rem; font-weight: 800; text-transform: uppercase;
    letter-spacing: .1em; border-radius: 2px; text-decoration: none;
    margin-bottom: 10px; align-self: flex-start; width: fit-content;
}
.b1-sep { color: rgba(255,255,255,.4); margin: 0 4px; }

/* ── Hero – Panoramic với assets + 4 posts overlay ── */
.b1-hero {
    position: relative; min-height: 520px;
    display: flex; flex-direction: column; justify-content: center;
    overflow: hidden; background: var(--color-secondary);
}

/* Background image */
.b1-hero__bg {
    position: absolute; inset: 0;
    background: center/cover no-repeat;
    transform: scale(1.02);
}

/* Gradient overlay: tối trái, trong suốt phải */
.b1-hero__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(
        105deg,
        rgba(0,0,0,.92) 0%,
        rgba(0,0,0,.7) 35%,
        rgba(0,0,0,.3) 60%,
        rgba(0,0,0,.05) 100%
    );
}

/* Decorative figure bên phải */
.b1-hero__figure {
    position: absolute; right: 0; bottom: 0;
    height: 95%; width: auto; object-fit: contain; object-position: bottom right;
    pointer-events: none; z-index: 2;
    filter: drop-shadow(-12px 0 32px rgba(0,0,0,.5));
}

/* Decorative vertical text */
.b1-hero__deco-text {
    position: absolute; right: 28px; top: 50%;
    transform: translateY(-50%) rotate(90deg);
    font-size: 4.5rem; font-weight: 900; letter-spacing: .2em;
    color: rgba(255,255,255,.05); pointer-events: none; white-space: nowrap;
    z-index: 1;
}

/* Main content */
.b1-hero__inner {
    position: relative; z-index: 3;
    padding: 52px 6% 24px; max-width: 800px;
}

.b1-hero__eyebrow {
    display: flex; align-items: center; gap: 8px; margin-bottom: 14px;
}
.b1-hero__eyebrow-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--color-primary); flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(255,255,255,.15);
    animation: b1-pulse 2s ease-in-out infinite;
}
@keyframes b1-pulse { 0%,100%{box-shadow:0 0 0 3px rgba(255,255,255,.15)} 50%{box-shadow:0 0 0 6px rgba(255,255,255,.05)} }
.b1-hero__eyebrow span:last-child {
    font-size: .68rem; font-weight: 800; letter-spacing: .14em;
    text-transform: uppercase; color: var(--color-primary);
}

.b1-hero__title {
    font-size: clamp(1.6rem, 3.5vw, 2.8rem); font-weight: 900; line-height: 1.1;
    text-transform: uppercase; margin-bottom: 14px; color: #fff; letter-spacing: -.01em;
}
.b1-hero__title a { color: inherit; text-decoration: none; }
.b1-hero__title a:hover { color: var(--color-primary); }
.b1-hero__desc { font-size: .88rem; color: rgba(255,255,255,.68); line-height: 1.65; margin-bottom: 28px; }

.b1-hero__btn {
    display: inline-flex; align-items: center; gap: 0;
    background: var(--color-primary); color: var(--color-btn-text);
    font-weight: 700; font-size: .82rem; border-radius: 5px;
    text-decoration: none; letter-spacing: .04em; overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.b1-hero__btn span:first-child { padding: 12px 22px; }
.b1-hero__btn-icon {
    display: flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; background: rgba(0,0,0,.2);
    transition: background .2s, transform .2s;
}
.b1-hero__btn:hover .b1-hero__btn-icon { background: rgba(0,0,0,.35); transform: translateX(2px); }
.b1-hero__btn:hover { text-decoration: none; }

/* ── 4 posts nằm trên hero (bottom) ── */
.b1-hero__posts {
    position: relative; z-index: 3;
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 12px; padding: 0 4% 32px;
}

.b1-hpost {
    position: relative; height: 200px; border-radius: 16px; overflow: hidden;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; cursor: pointer;
    transition: transform .35s cubic-bezier(.175,.885,.32,1.275), box-shadow .35s;
    box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
.b1-hpost:hover { transform: translateY(-8px) scale(1.02); box-shadow: 0 16px 40px rgba(0,0,0,.5); }

/* Background image */
.b1-hpost__bg {
    position: absolute; inset: 0;
    background: var(--color-secondary) center/cover no-repeat;
    transition: transform .5s ease;
}
.b1-hpost:hover .b1-hpost__bg { transform: scale(1.08); }

/* Gradient overlay */
.b1-hpost__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.92) 0%, rgba(0,0,0,.4) 50%, rgba(0,0,0,.05) 100%);
    transition: opacity .3s;
}
.b1-hpost:hover .b1-hpost__overlay { opacity: .85; }

/* Number badge top-left */
.b1-hpost__num {
    position: absolute; top: 14px; left: 14px; z-index: 2;
    font-size: .65rem; font-weight: 900; letter-spacing: .1em;
    color: var(--color-primary); background: rgba(0,0,0,.5);
    padding: 3px 8px; border-radius: 3px;
    backdrop-filter: blur(4px);
}

/* Arrow top-right (hidden, shows on hover) */
.b1-hpost__arrow {
    position: absolute; top: 14px; right: 14px; z-index: 2;
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--color-primary); color: var(--color-btn-text);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transform: translateY(-6px);
    transition: opacity .3s, transform .3s;
}
.b1-hpost:hover .b1-hpost__arrow { opacity: 1; transform: translateY(0); }

/* Content */
.b1-hpost__body { position: relative; z-index: 2; padding: 14px 16px; }
.b1-hpost__cat {
    display: inline-block; font-size: .65rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: .1em;
    color: var(--color-primary); margin-bottom: 6px;
}
.b1-hpost__title {
    font-size: .88rem; font-weight: 700; line-height: 1.35; color: #fff;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    margin-bottom: 8px;
}
.b1-hpost__meta {
    display: flex; align-items: center; gap: 3px;
    font-size: .68rem; color: rgba(255,255,255,.5);
}

/* ══════════════════════════════════════════════════════════
   STYLE 1: GLASSMORPHISM
   Sidebar cam bo góc + glass cards trên nền gradient tối
   ══════════════════════════════════════════════════════════ */
.b1-glass {
    display: flex; width: 100%; min-height: 580px;
    background: radial-gradient(circle at top right, color-mix(in srgb, var(--color-secondary) 70%, var(--color-primary)), #000);
    align-items: center; padding: 48px 0;
    margin-top: 8px;
}
.b1-glass__sidebar {
    flex: 0 0 22%; background: var(--color-primary);
    margin: 0 36px; padding: 48px 40px;
    border-radius: 28px;
    box-shadow: 0 24px 64px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.08);
    flex-shrink: 0; position: relative; overflow: hidden;
}
/* Bóng tròn decorative */
.b1-glass__sidebar::before {
    content: ''; position: absolute;
    width: 200px; height: 200px; border-radius: 50%;
    background: rgba(255,255,255,.07);
    top: -60px; right: -60px; pointer-events: none;
}
.b1-glass__sidebar::after {
    content: ''; position: absolute;
    width: 130px; height: 130px; border-radius: 50%;
    background: rgba(255,255,255,.05);
    bottom: -40px; left: -30px; pointer-events: none;
}
/* Accent line trên title */
.b1-glass__title {
    font-size: clamp(1.4rem, 2.2vw, 2rem); font-weight: 900; line-height: 1.05;
    text-transform: uppercase; color: #fff; margin-bottom: 6px; letter-spacing: -.02em;
    position: relative; z-index: 1;
}
.b1-glass__title::before {
    content: ''; display: block;
    width: 36px; height: 3px; border-radius: 2px;
    background: rgba(255,255,255,.5); margin-bottom: 14px;
}
.b1-glass__desc {
    font-size: .82rem; color: rgba(255,255,255,.72); line-height: 1.65;
    margin-bottom: 28px; position: relative; z-index: 1;
}
.b1-glass__btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 22px;
    border: 1.5px solid rgba(255,255,255,.6); border-radius: 50px;
    color: #fff; font-size: .72rem; font-weight: 800; letter-spacing: .08em;
    text-decoration: none; transition: background .2s, color .2s;
    position: relative; z-index: 1; align-self: flex-start;
}
.b1-glass__btn:hover { background: #fff; color: var(--color-primary); text-decoration: none; }

.b1-glass__grid {
    flex: 1; display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 20px; padding-right: 40px;
}
.b1-glass__card {
    background: rgba(255,255,255,.05); backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,.1); border-radius: 24px;
    padding: 14px; text-decoration: none; color: #fff;
    display: flex; flex-direction: column;
    transition: transform .4s cubic-bezier(.175,.885,.32,1.275), border-color .3s;
}
.b1-glass__card:hover { transform: translateY(-12px); border-color: var(--color-primary); }
.b1-glass__img {
    width: 100%; aspect-ratio: 4/3;
    background: rgba(255,255,255,.08) center/cover no-repeat;
    border-radius: 16px; margin-bottom: 14px;
    position: relative; overflow: hidden;
}
.b1-glass__img-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.5), transparent);
    opacity: .7; transition: opacity .3s;
}
.b1-glass__card:hover .b1-glass__img-overlay { opacity: .4; }
.b1-glass__card-body { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.b1-glass__card-body h3 { font-size: .95rem; font-weight: 700; line-height: 1.4; color: #fff; }
.b1-glass__card-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-size: .68rem; color: rgba(255,255,255,.5);
    border-top: 1px solid rgba(255,255,255,.08); padding-top: 12px; margin-top: auto;
}
.b1-glass__card-meta strong { color: var(--color-primary); }

/* ══════════════════════════════════════════════════════════
   STYLE 2: MINIMALIST EDITORIAL
   Nền trắng/surface, sidebar trái, ảnh tròn, border phân cách
   ══════════════════════════════════════════════════════════ */
.b1-minimal {
    display: grid; grid-template-columns: 240px repeat(4, 1fr);
    width: 100%; background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
}
.b1-minimal__sidebar {
    padding: 36px 28px; border-right: 1px solid var(--color-border);
    background: var(--color-bg); display: flex; flex-direction: column; justify-content: center;
}
.b1-minimal__title {
    font-size: clamp(1.4rem, 2.2vw, 2rem); font-weight: 900; line-height: 1.1;
    color: var(--color-primary); text-transform: uppercase; margin-bottom: 10px;
    letter-spacing: -.02em;
}
.b1-minimal__title span { color: var(--color-text); }
.b1-minimal__desc { font-size: .82rem; color: var(--color-muted); line-height: 1.6; margin-bottom: 20px; }
.b1-minimal__btn {
    display: inline-block; font-size: .72rem; font-weight: 800;
    color: var(--color-primary); text-decoration: none; letter-spacing: .06em;
    border-bottom: 2px solid var(--color-primary); padding-bottom: 2px;
    transition: opacity .2s; align-self: flex-start;
}
.b1-minimal__btn:hover { opacity: .7; text-decoration: none; }

.b1-minimal__card {
    padding: 24px 18px; border-right: 1px solid var(--color-border);
    text-decoration: none; color: var(--color-text);
    display: flex; flex-direction: column; transition: background .3s;
}
.b1-minimal__card:hover { background: color-mix(in srgb, var(--color-surface) 90%, var(--color-primary)); }
.b1-minimal__img {
    width: 72%; aspect-ratio: 1/1; margin: 0 auto 16px;
    background: var(--color-border) center/cover no-repeat;
    border-radius: 50%;
    border: 3px solid var(--color-primary);
    transition: transform .3s;
}
.b1-minimal__card:hover .b1-minimal__img { transform: scale(1.04); }
.b1-minimal__card-body { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.b1-minimal__card-body h3 { font-size: .88rem; font-weight: 800; line-height: 1.4; color: var(--color-text); }
.b1-minimal__card:hover h3 { color: var(--color-primary); }
.b1-minimal__card-meta {
    display: flex; flex-direction: row; align-items: center; flex-wrap: wrap; gap: 6px;
    font-size: .68rem; color: var(--color-muted);
    border-top: 1px solid var(--color-border); padding-top: 10px; margin-top: auto;
}
.b1-minimal__card-meta strong { color: var(--color-secondary); }

/* ══════════════════════════════════════════════════════════
   STYLE 3: DARK EMERALD SPLIT
   Sidebar lớn bo góc phải + portrait cards dọc
   ══════════════════════════════════════════════════════════ */
.b1-split {
    display: flex; width: 100%; min-height: 480px;
    background: var(--color-secondary); overflow: hidden;
    margin-top: 8px;
}
.b1-split__sidebar {
    flex: 0 0 18%; background: var(--color-primary);
    padding: 40px 28px;
    border-top-right-radius: 64px;
    border-bottom-right-radius: 64px;
    display: flex; flex-direction: column; justify-content: center;
    box-shadow: 16px 0 48px rgba(0,0,0,.3);
    position: relative; z-index: 2; overflow: hidden;
}
/* Decorative circles – 5 bóng */
.b1-split__sidebar::before {
    content: ''; position: absolute;
    width: 180px; height: 180px; border-radius: 50%;
    background: rgba(255,255,255,.08);
    top: -50px; right: -70px; pointer-events: none;
}
.b1-split__sidebar::after {
    content: ''; position: absolute;
    width: 120px; height: 120px; border-radius: 50%;
    background: rgba(255,255,255,.05);
    bottom: -40px; left: -30px; pointer-events: none;
}
/* Extra circles via box-shadow on a pseudo span – dùng span.b1-split__circles */
.b1-split__circles {
    position: absolute; inset: 0; pointer-events: none; z-index: 0;
}
.b1-split__circles::before {
    content: ''; position: absolute;
    width: 90px; height: 90px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,.12);
    top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.b1-split__circles::after {
    content: ''; position: absolute;
    width: 140px; height: 140px; border-radius: 50%;
    border: 1.5px solid rgba(255,255,255,.07);
    top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.b1-split__title {
    font-size: clamp(1.4rem, 2.2vw, 2rem); font-weight: 900; line-height: 1.1;
    text-transform: uppercase; color: #fff; margin-bottom: 12px; letter-spacing: -.02em;
    position: relative; z-index: 1;
}
.b1-split__line { width: 32px; height: 3px; background: rgba(255,255,255,.5); margin-bottom: 12px; border-radius: 3px; position: relative; z-index: 1; }
.b1-split__desc { font-size: .82rem; color: rgba(255,255,255,.7); line-height: 1.6; margin-bottom: 18px; position: relative; z-index: 1; }
.b1-split__btn {
    display: inline-block; padding: 7px 16px;
    border: 1.5px solid rgba(255,255,255,.6); border-radius: 50px;
    color: #fff; font-size: .68rem; font-weight: 800; letter-spacing: .07em;
    text-decoration: none; transition: background .2s, color .2s; align-self: flex-start;
    position: relative; z-index: 1;
}
.b1-split__btn:hover { background: #fff; color: var(--color-primary); text-decoration: none; }

.b1-split__grid {
    flex: 1; display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 14px; padding: 32px 32px 32px 44px; align-items: center;
}
.b1-split__card {
    text-decoration: none; color: #fff; display: flex; flex-direction: column;
    transition: transform .4s cubic-bezier(.175,.885,.32,1.275);
}
.b1-split__card:hover { transform: translateY(-14px) scale(1.02); }
.b1-split__img {
    width: 100%; aspect-ratio: 4/3;
    background: rgba(255,255,255,.08) center/cover no-repeat;
    border-radius: 14px; margin-bottom: 12px;
    position: relative; overflow: hidden;
    border: 1px solid rgba(255,255,255,.1);
}
.b1-split__img-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,.6));
    opacity: 0; transition: opacity .3s;
}
.b1-split__card:hover .b1-split__img-overlay { opacity: 1; }
.b1-split__card-body { display: flex; flex-direction: column; gap: 6px; }
.b1-split__card-body .b1-badge { align-self: flex-start; margin-bottom: 0; }
.b1-split__card-body h3 { font-size: .95rem; font-weight: 700; line-height: 1.4; color: #fff; }
.b1-split__card-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-size: .68rem; color: rgba(255,255,255,.5);
    border-top: 1px solid rgba(255,255,255,.08); padding-top: 12px; margin-top: 4px;
}
.b1-split__card-meta strong { color: var(--color-primary); }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE – Tablet (max 1200px) + Mobile (max 768px, 480px)
   ═══════════════════════════════════════════════════════════ */

/* ── Tablet 1200px ── */
@media (max-width: 1200px) {
    /* Hero */
    .b1-hero__figure { height: 78%; }
    .b1-hero__posts { gap: 10px; padding: 0 3% 28px; }
    .b1-hpost { height: 185px; }

    /* Glass */
    .b1-glass__grid { grid-template-columns: repeat(2, 1fr); }
    .b1-glass__sidebar { flex: 0 0 26%; }

    /* Minimal */
    .b1-minimal { grid-template-columns: 200px repeat(2, 1fr); }
    .b1-minimal__sidebar { padding: 28px 20px; }
    .b1-minimal__card { padding: 20px 14px; }

    /* Split */
    .b1-split__grid { grid-template-columns: repeat(2, 1fr); }
    .b1-split__sidebar { flex: 0 0 22%; padding: 40px 28px; }

    /* Boldlist */
    .b1-bl-item__title { font-size: .95rem; }
}

/* ── Tablet 900px ── */
@media (max-width: 900px) {
    /* Hero */
    .b1-hero { min-height: 400px; }
    .b1-hero__figure { display: none; }
    .b1-hero__deco-text { display: none; }
    .b1-hero__inner { padding: 40px 5% 20px; }
    .b1-hero__title { font-size: clamp(1.4rem, 4vw, 2.2rem); }
    .b1-hero__posts { grid-template-columns: repeat(2, 1fr); gap: 8px; padding: 0 3% 20px; }
    .b1-hpost { height: 170px; }

    /* Glass */
    .b1-glass { flex-direction: column; padding: 0; }
    .b1-glass__sidebar { margin: 0; border-radius: 0 0 48px 48px; width: 100%; flex: none; }
    .b1-glass__sidebar .b1-glass__title { font-size: 2.2rem; }
    .b1-glass__grid { padding: 28px 4%; grid-template-columns: repeat(2, 1fr); gap: 16px; }

    /* Minimal */
    .b1-minimal { grid-template-columns: 1fr 1fr; }
    .b1-minimal__sidebar { grid-column: 1 / -1; border-right: none; border-bottom: 1px solid var(--color-border); padding: 32px 5%; }
    .b1-minimal__card { border-right: none; border-bottom: 1px solid var(--color-border); }
    .b1-minimal__img { aspect-ratio: 4/3; border-radius: 12px; }

    /* Split */
    .b1-split { flex-direction: column; }
    .b1-split__sidebar { border-radius: 0 0 72px 72px; flex: none; padding: 48px 6%; }
    .b1-split__grid { padding: 28px 4%; grid-template-columns: repeat(2, 1fr); gap: 16px; }

    /* Boldlist */
    .b1-boldlist__cols { grid-template-columns: 1fr; }
    .b1-boldlist__col:first-child { border-right: none; border-bottom: 2px solid var(--color-border); }
    .b1-bl-item { grid-template-columns: 48px 90px 1fr auto; }
    .b1-bl-item__cta { margin: 0 12px; padding: 7px 12px; font-size: .68rem; }

    /* Mosaic */
    .b1-mosaic__grid { grid-template-columns: 1fr; }
    .b1-mosaic__big { min-height: 280px; }
    .b1-mosaic__smalls { grid-template-rows: auto; grid-template-columns: repeat(2, 1fr); }
    .b1-mosaic__small { min-height: 150px; }

    /* Ticker */
    .b1-ticker-sec__body { grid-template-columns: 1fr; }
    .b1-ticker-sec__featured { min-height: 260px; }
    .b1-ticker-sec__list { display: grid; grid-template-columns: repeat(2, 1fr); }
    .b1-ticker-sec__item { border-right: 1px solid var(--color-border); }
}

/* ── Mobile 600px ── */
@media (max-width: 600px) {
    /* Hero */
    .b1-hero { min-height: 320px; }
    .b1-hero__title { font-size: 1.4rem; }
    .b1-hero__desc { display: none; }
    .b1-hero__posts { grid-template-columns: 1fr 1fr; gap: 6px; padding: 0 3% 16px; }
    .b1-hpost { height: 150px; }
    .b1-hpost__body { padding: 10px 12px; }
    .b1-hpost__title { font-size: .82rem; -webkit-line-clamp: 2; }

    /* Glass */
    .b1-glass__grid { grid-template-columns: 1fr; gap: 12px; padding: 20px 4%; }
    .b1-glass__img { aspect-ratio: 16/9; }

    /* Minimal */
    .b1-minimal { grid-template-columns: 1fr; }
    .b1-minimal__img { aspect-ratio: 16/9; }

    /* Split */
    .b1-split__grid { grid-template-columns: 1fr; gap: 12px; padding: 20px 4%; }
    .b1-split__img { aspect-ratio: 4/3; }

    /* Boldlist */
    .b1-boldlist__header { padding: 18px 4% 14px; gap: 10px; }
    .b1-boldlist__subdesc { display: none; }
    .b1-bl-item { grid-template-columns: 36px 72px 1fr; }
    .b1-bl-item__cta { display: none; }
    .b1-bl-item__img { height: 64px; }
    .b1-bl-item__num { font-size: 1.2rem; padding: 0 8px; }
    .b1-bl-item__body { padding: 10px 14px; }
    .b1-bl-item__title { font-size: .82rem; }

    /* Mosaic */
    .b1-mosaic__smalls { grid-template-columns: 1fr; }
    .b1-mosaic__small { min-height: 130px; }
    .b1-mosaic__header { padding: 18px 4% 14px; }

    /* Ticker */
    .b1-ticker-sec__list { grid-template-columns: 1fr; }
    .b1-ticker-sec__item-img { flex: 0 0 90px; }
    .b1-ticker-sec__item-body { padding: 12px 14px; }
    .b1-ticker-sec__bar { padding: 14px 4%; }
}

/* ── Mobile nhỏ 400px ── */
@media (max-width: 400px) {
    .b1-hero__posts { grid-template-columns: 1fr; }
    .b1-hpost { height: 140px; }
    .b1-hero__btn span:first-child { padding: 10px 16px; font-size: .78rem; }
    .b1-glass__sidebar .b1-glass__title { font-size: 1.8rem; }
    .b1-split__sidebar { padding: 36px 5%; }
    .b1-split__title { font-size: 2rem; }
}

/* ══════════════════════════════════════════════════════════
   STYLE 4: BOLD LIST (như ảnh mẫu)
   ══════════════════════════════════════════════════════════ */
.b1-boldlist {
    background: var(--color-bg); margin-top: 8px;
}

/* Header bar */
.b1-boldlist__header {
    display: flex; align-items: center; gap: 16px;
    padding: 24px 5% 20px;
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}
.b1-boldlist__accent-bar {
    display: block; width: 4px; height: 32px;
    background: var(--color-primary); border-radius: 2px; flex-shrink: 0;
}
.b1-boldlist__title {
    font-size: 1rem; font-weight: 900; text-transform: uppercase;
    color: var(--color-text); letter-spacing: .04em;
}
.b1-boldlist__subdesc {
    font-size: .82rem; color: var(--color-muted); flex: 1;
}
.b1-boldlist__viewall {
    font-size: .78rem; font-weight: 800; color: var(--color-text);
    text-decoration: none; letter-spacing: .04em;
    padding: 9px 20px; border: 1.5px solid var(--color-border);
    border-radius: 3px; transition: border-color .2s, color .2s;
    white-space: nowrap;
}
.b1-boldlist__viewall:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }

/* List items – 2 cột */
.b1-boldlist__cols {
    display: grid; grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--color-border);
}
.b1-boldlist__col {
    display: flex; flex-direction: column;
}
.b1-boldlist__col:first-child {
    border-right: 2px solid var(--color-border);
}

.b1-bl-item {
    display: grid;
    grid-template-columns: 56px 100px 1fr auto;
    align-items: center; gap: 0;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    background: var(--color-surface);
    transition: background .2s;
    overflow: hidden;
}
.b1-bl-item:nth-child(even) { background: var(--color-bg); }
.b1-bl-item:hover { background: var(--color-primary-subtle); }

/* Number */
.b1-bl-item__num {
    font-size: 1.6rem; font-weight: 900; color: var(--color-primary);
    text-align: center; padding: 0 12px; line-height: 1;
    opacity: .8; flex-shrink: 0;
}

/* Thumbnail */
.b1-bl-item__img {
    height: 80px; overflow: hidden; flex-shrink: 0;
}
.b1-bl-item__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.b1-bl-item:hover .b1-bl-item__img img { transform: scale(1.06); }

/* Body */
.b1-bl-item__body {
    padding: 14px 20px; display: flex; flex-direction: column; gap: 4px; min-width: 0;
}

/* Category bar – full width màu primary */
.b1-bl-item__cat-bar {
    display: inline-block; padding: 3px 10px;
    background: var(--color-primary); color: var(--color-btn-text);
    font-size: .62rem; font-weight: 800; text-transform: uppercase;
    letter-spacing: .08em; border-radius: 2px; align-self: flex-start;
    margin-bottom: 4px;
}

.b1-bl-item__title {
    font-size: .88rem;
    color: var(--color-text); line-height: 1.3;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.b1-bl-item:hover .b1-bl-item__title { color: var(--color-primary); }

.b1-bl-item__meta {
    font-size: .68rem; color: var(--color-muted);
    display: flex; align-items: center; gap: 4px;
}

/* READ+ button */
.b1-bl-item__cta {
    flex-shrink: 0; margin: 0 20px;
    font-size: .72rem; font-weight: 900; color: var(--color-btn-text);
    letter-spacing: .06em; white-space: nowrap;
    padding: 8px 16px; background: var(--color-primary); border-radius: 3px;
    transition: background .2s;
}
.b1-bl-item:hover .b1-bl-item__cta { background: var(--color-primary-dark); }

/* ══════════════════════════════════════════════════════════
   STYLE 5: MOSAIC
   ══════════════════════════════════════════════════════════ */
.b1-mosaic { background: var(--color-secondary); margin-top: 8px; }
.b1-mosaic__header {
    display: flex; align-items: center; gap: 14px; padding: 20px 5% 16px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.b1-mosaic__accent-bar { display: block; width: 4px; height: 22px; background: var(--color-primary); border-radius: 2px; flex-shrink: 0; }
.b1-mosaic__header h2 { font-size: 1rem; font-weight: 900; text-transform: uppercase; color: #fff; letter-spacing: .06em; flex: 1; }
.b1-mosaic__header a { font-size: .68rem; font-weight: 800; color: var(--color-primary); text-decoration: none; letter-spacing: .06em; white-space: nowrap; }
.b1-mosaic__header a:hover { text-decoration: underline; }

/* Grid: big left + 2x2 right */
.b1-mosaic__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    grid-template-rows: 1fr 1fr;
    min-height: 440px;
}
.b1-mosaic__big {
    position: relative; background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden;
    grid-row: 1 / 3; /* span 2 rows */
    transition: filter .35s;
}
.b1-mosaic__big:hover { filter: brightness(1.08); }
.b1-mosaic__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.88) 0%, rgba(0,0,0,.25) 55%, transparent 100%);
}
.b1-mosaic__overlay--sm {
    background: linear-gradient(to top, rgba(0,0,0,.82) 0%, rgba(0,0,0,.15) 60%, transparent 100%);
}
.b1-mosaic__big-body { position: relative; z-index: 1; padding: 24px 28px; color: #fff; }
.b1-mosaic__big-body h2 {
    font-size: clamp(1.1rem, 1.8vw, 1.6rem); font-weight: 900; line-height: 1.25;
    margin-bottom: 6px; color: #fff;
}
.b1-mosaic__big-body p { font-size: .82rem; color: rgba(255,255,255,.68); margin-bottom: 8px; line-height: 1.5; }
.b1-mosaic__meta { display: flex; gap: 4px; font-size: .68rem; color: rgba(255,255,255,.5); align-items: center; }

/* 4 smalls: 2x2 grid on the right */
.b1-mosaic__smalls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    border-left: 1px solid rgba(255,255,255,.08);
    grid-row: 1 / 3;
}
.b1-mosaic__small {
    position: relative; background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,.08);
    border-right: 1px solid rgba(255,255,255,.08);
    transition: filter .3s;
}
.b1-mosaic__small:nth-child(even) { border-right: none; }
.b1-mosaic__small:nth-child(3),
.b1-mosaic__small:nth-child(4) { border-bottom: none; }
/* Border radius cho 4 góc của khối smalls */
.b1-mosaic__small:nth-child(1) { border-top-right-radius: 0; }
.b1-mosaic__small:nth-child(2) { border-top-right-radius: 12px; }
.b1-mosaic__small:nth-child(3) { border-bottom-right-radius: 0; }
.b1-mosaic__small:nth-child(4) { border-bottom-right-radius: 12px; }
.b1-mosaic__small:hover { filter: brightness(1.12); }
.b1-mosaic__small-body { position: relative; z-index: 1; padding: 10px 14px; color: #fff; }
.b1-mosaic__small-body h4 { font-size: .82rem; font-weight: 700; line-height: 1.3; margin-bottom: 2px; color: #fff; }
.b1-mosaic__small-body span { font-size: .65rem; color: rgba(255,255,255,.5); }

/* ══════════════════════════════════════════════════════════
   STYLE 6: TICKER + GRID
   ══════════════════════════════════════════════════════════ */
.b1-ticker-sec {
    background: var(--color-bg); margin-top: 8px;
    border-top: 3px solid var(--color-primary);
}
.b1-ticker-sec__bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 5%; background: var(--color-secondary);
}
.b1-ticker-sec__bar-left { display: flex; align-items: center; gap: 12px; }
.b1-ticker-sec__live {
    display: inline-block; padding: 3px 8px; background: var(--color-primary);
    color: var(--color-btn-text); font-size: .65rem; font-weight: 900;
    letter-spacing: .1em; border-radius: 2px;
    animation: b1-pulse 2s ease-in-out infinite;
}
.b1-ticker-sec__bar-left h2 {
    font-size: 1rem; font-weight: 900; text-transform: uppercase;
    color: #fff; letter-spacing: .04em;
}
.b1-ticker-sec__viewall {
    font-size: .68rem; font-weight: 800; color: var(--color-primary);
    text-decoration: none; letter-spacing: .05em;
}
.b1-ticker-sec__viewall:hover { text-decoration: underline; }

/* Body: featured image left + list right */
.b1-ticker-sec__body {
    display: grid; grid-template-columns: 1.3fr 1fr;
    min-height: 400px;
}
.b1-ticker-sec__featured {
    position: relative; background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden; transition: filter .35s;
}
.b1-ticker-sec__featured:hover { filter: brightness(1.07); }
/* reuse mosaic overlay */
.b1-ticker-sec__featured .b1-mosaic__overlay {
    background: linear-gradient(to top, rgba(0,0,0,.88) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.b1-ticker-sec__featured-body {
    position: relative; z-index: 1; padding: 24px 28px; color: #fff;
}
.b1-ticker-sec__featured-body h3 {
    font-size: clamp(1.1rem, 1.8vw, 1.6rem); font-weight: 900; line-height: 1.25;
    margin-bottom: 6px; color: #fff;
}
.b1-ticker-sec__featured-body p {
    font-size: .82rem; color: rgba(255,255,255,.68); margin-bottom: 8px; line-height: 1.5;
}
.b1-ticker-sec__featured-body .b1-mosaic__meta {
    font-size: .68rem; color: rgba(255,255,255,.5);
}

/* List: 3 items stacked */
.b1-ticker-sec__list {
    display: flex; flex-direction: column;
    background: var(--color-surface);
    border-left: 2px solid var(--color-primary);
}
.b1-ticker-sec__item {
    flex: 1; display: flex; align-items: stretch; text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    overflow: hidden; transition: background .2s;
}
.b1-ticker-sec__item:last-child { border-bottom: none; }
.b1-ticker-sec__item:hover { background: color-mix(in srgb, var(--color-surface) 80%, var(--color-primary)); }
.b1-ticker-sec__item-img { flex: 0 0 110px; overflow: hidden; }
.b1-ticker-sec__item-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; display: block; }
.b1-ticker-sec__item:hover .b1-ticker-sec__item-img img { transform: scale(1.07); }
.b1-ticker-sec__item-body {
    flex: 1; padding: 14px 16px;
    display: flex; flex-direction: column; justify-content: center; gap: 4px;
    border-left: 1px solid var(--color-border);
}
.b1-ticker-sec__item-body .b1-badge {
    align-self: flex-start; margin-bottom: 2px;
}
.b1-ticker-sec__item-body h4 {
    font-size: .82rem; font-weight: 800; line-height: 1.35; color: var(--color-text);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.b1-ticker-sec__item:hover h4 { color: var(--color-primary); }
.b1-ticker-sec__item-meta { font-size: .65rem; color: var(--color-muted); display: flex; gap: 4px; align-items: center; }


/* ══════════════════════════════════════════════════════════
   GLOBAL – tắt text-decoration tất cả link trong body-1
   ══════════════════════════════════════════════════════════ */
.b1-mag a, .b1-deck a, .b1-numlist a,
.b1-glass a, .b1-minimal a, .b1-split a,
.b1-boldlist a, .b1-hero a, .b1-hpost,
.b1-mosaic a, .b1-ticker-sec a {
    text-decoration: none;
}
.b1-mag a:hover, .b1-deck a:hover, .b1-numlist a:hover,
.b1-glass a:hover, .b1-minimal a:hover, .b1-split a:hover,
.b1-boldlist a:hover, .b1-hero a:hover, .b1-hpost:hover,
.b1-mosaic a:hover, .b1-ticker-sec a:hover {
    text-decoration: none;
}

/* ══════════════════════════════════════════════════════════
   STYLE 5: SPOTLIGHT
   Nền tối, featured 60% trái + sidebar list 40% phải
   ══════════════════════════════════════════════════════════ */
.b1-mag { background: var(--color-secondary); margin-top: 8px; }
.b1-mag__inner { display: flex; min-height: 480px; }

.b1-mag__featured {
    flex: 0 0 60%; position: relative;
    background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden; transition: filter .35s;
}
.b1-mag__featured:hover { filter: brightness(1.07); }
.b1-mag__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.92) 0%, rgba(0,0,0,.45) 45%, rgba(0,0,0,.08) 100%);
}
.b1-mag__featured-body {
    position: relative; z-index: 1; padding: 32px 36px; color: #fff;
    display: flex; flex-direction: column; gap: 10px;
}
.b1-mag__featured-body .b1-badge { align-self: flex-start; margin-bottom: 0; }
.b1-mag__featured-body h2 {
    font-size: clamp(1.4rem, 2.2vw, 2rem); font-weight: 900; line-height: 1.2; color: #fff; margin: 0;
}
.b1-mag__featured-body p { font-size: .82rem; color: rgba(255,255,255,.68); line-height: 1.6; margin: 0; }
.b1-mag__meta { display: flex; align-items: center; gap: 4px; font-size: .68rem; color: rgba(255,255,255,.45); }

.b1-mag__sidebar {
    flex: 0 0 40%; display: flex; flex-direction: column;
    border-left: 1px solid rgba(255,255,255,.08);
}
.b1-mag__sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 24px; border-bottom: 1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.03);
}
.b1-mag__sidebar-header h3 {
    font-size: .68rem; font-weight: 900; letter-spacing: .14em;
    color: var(--color-primary); text-transform: uppercase; margin: 0;
}
.b1-mag__sidebar-header a {
    font-size: .68rem; font-weight: 800; color: rgba(255,255,255,.5);
    text-decoration: none; letter-spacing: .06em; transition: color .2s;
}
.b1-mag__sidebar-header a:hover { color: var(--color-primary); }
.b1-mag__sidebar-list { display: flex; flex-direction: column; flex: 1; }
.b1-mag__item {
    display: flex; align-items: center; gap: 14px; padding: 16px 24px;
    border-bottom: 1px solid rgba(255,255,255,.06);
    text-decoration: none; color: #fff; transition: background .2s;
}
.b1-mag__item:last-child { border-bottom: none; }
.b1-mag__item:hover { background: rgba(255,255,255,.05); }
.b1-mag__item-img {
    flex: 0 0 72px; width: 72px; height: 72px; border-radius: 50%;
    background: rgba(255,255,255,.1) center/cover no-repeat; flex-shrink: 0;
    border: 2px solid rgba(255,255,255,.1); transition: border-color .2s;
}
.b1-mag__item:hover .b1-mag__item-img { border-color: var(--color-primary); }
.b1-mag__item-body { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.b1-mag__item-body h4 {
    font-size: .82rem; font-weight: 700; line-height: 1.35; color: #fff;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    margin: 0; transition: color .2s;
}
.b1-mag__item:hover h4 { color: var(--color-primary); }
.b1-mag__item-meta { display: flex; align-items: center; gap: 4px; font-size: .65rem; color: rgba(255,255,255,.4); }

/* ══════════════════════════════════════════════════════════
   STYLE 6: CINEMATIC DECK
   Nền tối, featured lớn trái + 4 cards 2×2 phải
   ══════════════════════════════════════════════════════════ */
.b1-deck { background: var(--color-secondary); margin-top: 8px; }

.b1-deck__header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 5%;
    background: rgba(255,255,255,.03);
    border-bottom: 1px solid rgba(255,255,255,.07);
}
.b1-deck__header-left { display: flex; align-items: center; gap: 12px; }
.b1-deck__accent {
    display: block; width: 3px; height: 22px;
    background: var(--color-primary); border-radius: 2px; flex-shrink: 0;
}
.b1-deck__title {
    font-size: 1rem; font-weight: 900; text-transform: uppercase;
    color: #fff; letter-spacing: .08em; margin: 0;
}
.b1-deck__viewall {
    font-size: .68rem; font-weight: 800; color: var(--color-primary);
    text-decoration: none; letter-spacing: .06em;
    border: 1px solid rgba(255,255,255,.15); padding: 6px 16px; border-radius: 3px;
    transition: background .2s, border-color .2s, color .2s;
}
.b1-deck__viewall:hover { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-btn-text); }

.b1-deck__body { display: grid; grid-template-columns: 1.1fr 1fr; min-height: 480px; }

.b1-deck__featured {
    position: relative; background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden; transition: filter .35s;
    border-right: 1px solid rgba(255,255,255,.07);
}
.b1-deck__featured:hover { filter: brightness(1.07); }
.b1-deck__featured-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.92) 0%, rgba(0,0,0,.35) 50%, rgba(0,0,0,.05) 100%);
}
.b1-deck__featured-body {
    position: relative; z-index: 1; padding: 28px 32px; color: #fff;
    display: flex; flex-direction: column; gap: 10px;
}
.b1-deck__featured-body .b1-badge { align-self: flex-start; margin-bottom: 0; }
.b1-deck__featured-body h3 {
    font-size: clamp(1.1rem, 1.8vw, 1.6rem); font-weight: 900; line-height: 1.25; color: #fff; margin: 0;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.b1-deck__featured-body p { font-size: .82rem; color: rgba(255,255,255,.65); line-height: 1.55; margin: 0; }
.b1-deck__meta { display: flex; align-items: center; gap: 4px; font-size: .68rem; color: rgba(255,255,255,.45); }

.b1-deck__grid {
    display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
}
.b1-deck__card {
    position: relative; background: var(--color-secondary) center/cover no-repeat;
    display: flex; flex-direction: column; justify-content: flex-end;
    text-decoration: none; overflow: hidden;
    border-bottom: 1px solid rgba(255,255,255,.07);
    border-left: 1px solid rgba(255,255,255,.07);
    transition: filter .3s;
}
.b1-deck__card:nth-child(3),
.b1-deck__card:nth-child(4) { border-bottom: none; }
.b1-deck__card:hover { filter: brightness(1.1); }
.b1-deck__card-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.85) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.b1-deck__card-body {
    position: relative; z-index: 1; padding: 14px 16px; color: #fff;
    display: flex; flex-direction: column; gap: 5px;
}
.b1-deck__card-body .b1-badge { align-self: flex-start; margin-bottom: 0; }
.b1-deck__card-body h4 {
    font-size: .82rem; font-weight: 800; line-height: 1.3; color: #fff; margin: 0;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    transition: color .2s;
}
.b1-deck__card:hover h4 { color: var(--color-primary); }
.b1-deck__card-meta { font-size: .65rem; color: rgba(255,255,255,.45); display: flex; gap: 4px; align-items: center; }

/* ══════════════════════════════════════════════════════════
   STYLE 7: NEON ACCENT
   Header bar primary + 4 cards ngang trên nền tối
   ══════════════════════════════════════════════════════════ */
.b1-numlist { background: var(--color-secondary); margin-top: 8px; }
.b1-numlist__bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 5%; background: var(--color-primary);
}
.b1-numlist__bar h2 {
    font-size: 1rem; font-weight: 900; text-transform: uppercase;
    color: var(--color-btn-text); letter-spacing: .07em; margin: 0;
}
.b1-numlist__bar a {
    font-size: .68rem; font-weight: 800; color: var(--color-btn-text);
    text-decoration: none; letter-spacing: .06em; opacity: .8; transition: opacity .2s;
}
.b1-numlist__bar a:hover { opacity: 1; }
.b1-numlist__grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 14px; padding: 18px 5%;
}
.b1-numlist__card {
    display: flex; flex-direction: column; text-decoration: none; color: #fff;
    border: 1px solid rgba(255,255,255,.08); border-radius: 10px; overflow: hidden;
    background: rgba(255,255,255,.03);
    transition: border-color .3s, transform .3s, box-shadow .3s;
}
.b1-numlist__card:hover {
    border-color: var(--color-primary); transform: translateY(-5px);
    box-shadow: 0 8px 28px rgba(0,0,0,.45);
}
.b1-numlist__card-img {
    width: 100%; aspect-ratio: 16/9;
    background: rgba(255,255,255,.08) center/cover no-repeat;
    position: relative; overflow: hidden; flex-shrink: 0;
}
.b1-numlist__card-num {
    position: absolute; top: 10px; left: 12px; z-index: 1;
    font-size: .62rem; font-weight: 900; letter-spacing: .08em;
    color: #fff; background: rgba(0,0,0,.55);
    padding: 3px 8px; border-radius: 3px; backdrop-filter: blur(4px);
}
.b1-numlist__card-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.b1-numlist__card-body .b1-badge { align-self: flex-start; margin-bottom: 0; }
.b1-numlist__card-body h3 {
    font-size: .88rem; font-weight: 800; line-height: 1.4; color: #fff; margin: 0;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    transition: color .2s;
}
.b1-numlist__card:hover h3 { color: var(--color-primary); }
.b1-numlist__card-meta {
    display: flex; align-items: center; gap: 4px;
    font-size: .65rem; color: rgba(255,255,255,.4); margin-top: auto;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – Tablet 1200px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 1200px) {
    .b1-hero__figure { height: 78%; }
    .b1-hero__posts { gap: 10px; padding: 0 3% 28px; }
    .b1-hpost { height: 185px; }
    .b1-glass__grid { grid-template-columns: repeat(2, 1fr); }
    .b1-glass__sidebar { flex: 0 0 26%; }
    .b1-minimal { grid-template-columns: 200px repeat(2, 1fr); }
    .b1-minimal__sidebar { padding: 28px 20px; }
    .b1-minimal__card { padding: 20px 14px; }
    .b1-split__grid { grid-template-columns: repeat(2, 1fr); }
    .b1-split__sidebar { flex: 0 0 22%; padding: 40px 28px; }
    .b1-bl-item__title { font-size: .95rem; }
    .b1-deck__body { grid-template-columns: 1fr 1fr; }
    .b1-numlist__grid { gap: 12px; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – Tablet 900px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
    /* Hero */
    .b1-hero { min-height: 400px; }
    .b1-hero__figure { display: none; }
    .b1-hero__deco-text { display: none; }
    .b1-hero__inner { padding: 40px 5% 20px; }
    .b1-hero__title { font-size: clamp(1.4rem, 4vw, 2.2rem); }
    .b1-hero__posts { grid-template-columns: repeat(2, 1fr); gap: 8px; padding: 0 3% 20px; }
    .b1-hpost { height: 170px; }
    /* Glass */
    .b1-glass { flex-direction: column; padding: 0; }
    .b1-glass__sidebar { margin: 0; border-radius: 0 0 48px 48px; width: 100%; flex: none; }
    .b1-glass__sidebar .b1-glass__title { font-size: 2.2rem; }
    .b1-glass__grid { padding: 28px 4%; grid-template-columns: repeat(2, 1fr); gap: 16px; }
    /* Minimal */
    .b1-minimal { grid-template-columns: 1fr 1fr; }
    .b1-minimal__sidebar { grid-column: 1 / -1; border-right: none; border-bottom: 1px solid var(--color-border); padding: 32px 5%; }
    .b1-minimal__card { border-right: none; border-bottom: 1px solid var(--color-border); }
    .b1-minimal__img { aspect-ratio: 4/3; border-radius: 12px; }
    /* Split */
    .b1-split { flex-direction: column; }
    .b1-split__sidebar { border-radius: 0 0 48px 48px; flex: none; padding: 36px 6%; }
    .b1-split__grid { padding: 24px 4%; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    /* Boldlist */
    .b1-boldlist__cols { grid-template-columns: 1fr; }
    .b1-boldlist__col:first-child { border-right: none; border-bottom: 2px solid var(--color-border); }
    .b1-bl-item { grid-template-columns: 44px 90px 1fr auto; }
    .b1-bl-item__cta { margin: 0 12px; padding: 7px 12px; font-size: .68rem; }
    /* Mosaic */
    .b1-mosaic__grid { grid-template-columns: 1fr; grid-template-rows: auto; }
    .b1-mosaic__big { grid-row: auto; min-height: 260px; }
    .b1-mosaic__smalls { grid-row: auto; grid-template-columns: repeat(2, 1fr); grid-template-rows: auto; border-left: none; border-top: 1px solid rgba(255,255,255,.08); }
    .b1-mosaic__small { min-height: 140px; }
    /* Ticker */
    .b1-ticker-sec__body { grid-template-columns: 1fr; }
    .b1-ticker-sec__featured { min-height: 240px; }
    .b1-ticker-sec__list { border-left: none; border-top: 2px solid var(--color-primary); display: grid; grid-template-columns: repeat(3, 1fr); }
    .b1-ticker-sec__item { border-right: 1px solid var(--color-border); }
    .b1-ticker-sec__item:last-child { border-right: none; }
    /* Spotlight */
    .b1-mag__inner { flex-direction: column; }
    .b1-mag__featured { flex: none; min-height: 300px; }
    .b1-mag__sidebar { flex: none; border-left: none; border-top: 1px solid rgba(255,255,255,.08); }
    .b1-mag__sidebar-list { display: grid; grid-template-columns: repeat(2, 1fr); }
    .b1-mag__item:nth-child(even) { border-right: none; }
    .b1-mag__item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.06); }
    /* Deck */
    .b1-deck__body { grid-template-columns: 1fr; }
    .b1-deck__featured { min-height: 280px; border-right: none; border-bottom: 1px solid rgba(255,255,255,.07); }
    .b1-deck__grid { grid-template-columns: repeat(4, 1fr); grid-template-rows: 1fr; min-height: 180px; }
    .b1-deck__card { border-bottom: none; border-left: none; border-right: 1px solid rgba(255,255,255,.07); }
    .b1-deck__card:last-child { border-right: none; }
    /* Numlist */
    .b1-numlist__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 16px 4%; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – Mobile 600px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
    /* Hero */
    .b1-hero { min-height: 320px; }
    .b1-hero__title { font-size: 1.4rem; }
    .b1-hero__desc { display: none; }
    .b1-hero__posts { grid-template-columns: 1fr; gap: 6px; padding: 0 3% 16px; }
    .b1-hpost { height: 150px; }
    .b1-hpost__body { padding: 10px 12px; }
    .b1-hpost__title { font-size: .82rem; }
    /* Glass */
    .b1-glass__grid { grid-template-columns: 1fr; gap: 12px; padding: 20px 4%; }
    .b1-glass__img { aspect-ratio: 16/9; }
    /* Minimal */
    .b1-minimal { grid-template-columns: 1fr; }
    .b1-minimal__img { aspect-ratio: 16/9; }
    /* Split */
    .b1-split__grid { grid-template-columns: 1fr; gap: 12px; padding: 20px 4%; }
    .b1-split__img { aspect-ratio: 16/9; }
    /* Boldlist */
    .b1-boldlist__header { padding: 18px 4% 14px; gap: 10px; }
    .b1-boldlist__subdesc { display: none; }
    .b1-bl-item { grid-template-columns: 36px 72px 1fr; }
    .b1-bl-item__cta { display: none; }
    .b1-bl-item__img { height: 64px; }
    .b1-bl-item__num { font-size: 1.2rem; padding: 0 8px; }
    .b1-bl-item__body { padding: 10px 14px; }
    .b1-bl-item__title { font-size: .82rem; }
    /* Mosaic */
    .b1-mosaic__grid { grid-template-columns: 1fr; grid-template-rows: auto; }
    .b1-mosaic__big { grid-row: auto; min-height: 220px; }
    .b1-mosaic__smalls { grid-row: auto; grid-template-columns: 1fr; grid-template-rows: auto; border-left: none; border-top: 1px solid rgba(255,255,255,.08); }
    .b1-mosaic__small { min-height: 120px; }
    .b1-mosaic__header { padding: 18px 4% 14px; }
    /* Ticker */
    .b1-ticker-sec__body { grid-template-columns: 1fr; }
    .b1-ticker-sec__featured { min-height: 220px; }
    .b1-ticker-sec__list { border-left: none; border-top: 2px solid var(--color-primary); display: flex; flex-direction: column; }
    .b1-ticker-sec__item-img { flex: 0 0 80px; }
    .b1-ticker-sec__item-body { padding: 12px 14px; }
    .b1-ticker-sec__bar { padding: 14px 4%; }
    /* Spotlight */
    .b1-mag__inner { flex-direction: column; }
    .b1-mag__featured { flex: none; min-height: 240px; }
    .b1-mag__sidebar { flex: none; border-left: none; border-top: 1px solid rgba(255,255,255,.08); }
    .b1-mag__sidebar-list { grid-template-columns: 1fr; }
    .b1-mag__item { border-right: none !important; }
    .b1-mag__item-img { width: 60px; height: 60px; flex: 0 0 60px; }
    /* Deck */
    .b1-deck__body { grid-template-columns: 1fr; }
    .b1-deck__featured { min-height: 240px; border-right: none; border-bottom: 1px solid rgba(255,255,255,.07); }
    .b1-deck__grid { grid-template-columns: 1fr; grid-template-rows: auto; min-height: unset; }
    .b1-deck__card { border-left: none; border-right: none; border-bottom: 1px solid rgba(255,255,255,.07); min-height: 140px; }
    .b1-deck__card:nth-child(3),
    .b1-deck__card:nth-child(4) { border-bottom: 1px solid rgba(255,255,255,.07); }
    .b1-deck__card:last-child { border-bottom: none; }
    /* Numlist */
    .b1-numlist__grid { grid-template-columns: 1fr; gap: 10px; padding: 14px 4%; }
    .b1-numlist__card-body h3 { font-size: .82rem; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – Mobile nhỏ 400px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 400px) {
    .b1-hero__posts { grid-template-columns: 1fr; }
    .b1-hpost { height: 140px; }
    .b1-hero__btn span:first-child { padding: 10px 16px; font-size: .78rem; }
    .b1-glass__sidebar .b1-glass__title { font-size: 1.8rem; }
    .b1-split__sidebar { padding: 36px 5%; }
    .b1-split__title { font-size: 2rem; }
    .b1-mag__featured { min-height: 200px; }
    .b1-deck__grid { grid-template-columns: 1fr; grid-template-rows: repeat(4, 160px); }
    .b1-deck__card { border-right: none; border-left: none; border-bottom: 1px solid rgba(255,255,255,.07); }
    .b1-numlist__grid { grid-template-columns: 1fr; }
}