:root {
    --mbu-primary: #3b82f6;
    --mbu-primary-hover: #2563eb;
    --mbu-bg: #f9fafb;
    --mbu-card-bg: #ffffff;
    --mbu-text: #1f2937;
    --mbu-text-muted: #6b7280;
    --mbu-border: #e5e7eb;
    --mbu-radius: 12px;
    --mbu-radius-sm: 8px;
    --mbu-font: 'Inter', system-ui, -apple-system, sans-serif;
    --mbu-transition: 0.3s ease;
}

/* ── Reset & Base ───────────────────────────────────────────────────── */
.mbu-wrapper {
    background: var(--mbu-bg);
    font-family: var(--mbu-font);
    color: var(--mbu-text);
    padding: 32px 0;
    min-height: 100vh;
}

.mbu-wrapper * { box-sizing: border-box; }

.mbu-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 32px;
}

/* ── Sidebar ────────────────────────────────────────────────────────── */
.mbu-sidebar {
    width: 280px;
    flex-shrink: 0;
    background: #fff;
    border-radius: var(--mbu-radius);
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    height: fit-content;
    position: sticky;
    top: 32px;
}

.mbu-sidebar__header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    font-weight: 700;
    color: var(--mbu-text);
    font-size: 1.1rem;
}

.mbu-sidebar__header svg { color: var(--mbu-primary); }

.mbu-sidebar__list { list-style: none; padding: 0; margin: 0; }
.mbu-sidebar__list li { margin-bottom: 8px; }

.mbu-cat-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: var(--mbu-radius-sm);
    color: var(--mbu-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--mbu-transition);
    text-align: left;
}

.mbu-cat-btn:hover { background: #f3f4f6; color: var(--mbu-text); }
.mbu-cat-btn.active { background: var(--mbu-primary); color: #fff; }
.mbu-cat-btn.active svg { color: #fff; }

.mbu-cat-icon { width: 20px; display: flex; justify-content: center; opacity: 0.8; }
.mbu-cat-name { flex: 1; font-weight: 600; }

.mbu-cat-count {
    background: #f3f4f6;
    color: var(--mbu-text-muted);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

.mbu-cat-btn.active .mbu-cat-count { background: rgba(255,255,255,0.2); color: #fff; }

/* ── Main Content ───────────────────────────────────────────────────── */
.mbu-main { flex: 1; min-width: 0; }

.mbu-section { margin-bottom: 48px; }
.mbu-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    border-left: 4px solid var(--mbu-primary);
    padding-left: 16px;
}

.mbu-section__title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.mbu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* ── Card Styling (Image 2 Design) ──────────────────────────────────── */
.mbu-card {
    background: var(--mbu-card-bg);
    border-radius: var(--mbu-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid var(--mbu-border);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mbu-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.mbu-card__media {
    position: relative;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    background: #eee;
}

.mbu-card__image-link {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
}

.mbu-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.mbu-card:hover .mbu-card__img { transform: scale(1.05); }

/* Overlays */
.mbu-card__image-overlays {
    position: absolute;
    top: 0; left: 0; width: 100%;
    padding: 12px;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
}

.mbu-card__brand-logo {
    width: 32px; height: 32px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mbu-primary);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.mbu-card__day-badge {
    background: var(--mbu-primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Cat Badge below image */
.mbu-card__cat-badge-box {
    position: absolute;
    bottom: 12px; left: 12px;
}

.mbu-card__cat-badge {
    background: var(--mbu-primary);
    color: #fff;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Card Body */
.mbu-card__content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.mbu-card__title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 12px 0;
}

.mbu-card__title a {
    color: var(--mbu-text);
    text-decoration: none;
    transition: color 0.3s;
}

.mbu-card__title a:hover { color: var(--mbu-primary); }

.mbu-card__excerpt {
    font-size: 0.875rem;
    color: var(--mbu-text-muted);
    line-height: 1.6;
    margin: 0 0 20px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-clamp: 3;
    overflow: hidden;
}

.mbu-card__footer-meta {
    margin-top: auto;
    border-top: 1px solid var(--mbu-border);
    padding-top: 16px;
    margin-bottom: 20px;
}

.mbu-meta-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.mbu-meta-row:last-child { margin-bottom: 0; }

.mbu-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--mbu-text-muted);
    font-size: 0.75rem;
    font-weight: 500;
}

.mbu-meta-item svg { opacity: 0.7; }

/* View Button */
.mbu-card__cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px;
    background: var(--mbu-primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--mbu-radius-sm);
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--mbu-transition);
}

.mbu-card__cta-btn:hover {
    background: var(--mbu-primary-hover);
    transform: scale(1.02);
}

.mbu-card__cta-btn svg {
    transition: transform 0.3s ease;
}

.mbu-card__cta-btn:hover svg {
    transform: translateX(4px);
}

/* ── Search Bar ─────────────────────────────────────────────────────── */
.mbu-search {
    max-width: 600px;
    margin: 0 auto 40px;
    position: relative;
}

.mbu-search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.mbu-search-icon {
    position: absolute;
    left: 16px;
    color: var(--mbu-text-muted);
}

.mbu-search-input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid var(--mbu-border);
    border-radius: 50px;
    font-size: 1rem;
    background: #fff;
    transition: border-color var(--mbu-transition);
}

.mbu-search-input:focus {
    outline: none;
    border-color: var(--mbu-primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.mbu-search-kbd {
    position: absolute;
    right: 16px;
    background: #f3f4f6;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--mbu-text-muted);
    border: 1px solid var(--mbu-border);
}

/* ── Utilities ──────────────────────────────────────────────────────── */
.mbu-wrapper .mbu-load-more {
    display: block;
    margin: 40px auto 0;
    padding: 14px 40px;
    background: #fff;
    border: 2px solid var(--mbu-primary);
    color: var(--mbu-primary);
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--mbu-transition);
}

.mbu-wrapper .mbu-load-more:hover {
    background: var(--mbu-primary);
    color: #fff;
}

@media (max-width: 1024px) {
    .mbu-container { flex-direction: column; }
    .mbu-sidebar { width: 100%; position: static; }
}

@media (max-width: 640px) {
    .mbu-grid { grid-template-columns: 1fr; }
}