/**
 * Branding Block Kit - Block Styles
 * 
 * Modern, clean design system inspired by 21st Century Lending brand guide.
 * Supports both dark and light modes with glassmorphic cards.
 *
 * @package Branding_Block_Kit
 * @since 1.0.0
 */

/* ==========================================================================
   CSS Custom Properties (Theme Variables)
   ========================================================================== */

/* Light mode is default */
.bbk-brand-block {
    --bbk-bg-card: #ffffff;
    --bbk-bg-card-hover: #ffffff;
    --bbk-bg-subtle: #f8f9fa;
    --bbk-border-color: rgba(0, 0, 0, 0.1);
    --bbk-border-color-hover: rgba(0, 0, 0, 0.2);
    --bbk-text-primary: #171A1F;
    --bbk-text-secondary: #374151;
    --bbk-text-tertiary: #6B7280;
    --bbk-accent: #2563EB;
    --bbk-font-mono: ui-monospace, 'SF Mono', Monaco, 'Cascadia Code', monospace;
    --bbk-radius-sm: 8px;
    --bbk-radius-md: 12px;
    --bbk-radius-lg: 16px;
    --bbk-radius-xl: 20px;
    --bbk-radius-2xl: 24px;
    --bbk-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --bbk-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --bbk-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --bbk-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* Dark mode overrides */
[data-theme="dark"] .bbk-brand-block,
.is-dark-theme .bbk-brand-block {
    --bbk-bg-card: rgba(255, 255, 255, 0.05);
    --bbk-bg-card-hover: rgba(255, 255, 255, 0.08);
    --bbk-bg-subtle: rgba(255, 255, 255, 0.02);
    --bbk-border-color: rgba(255, 255, 255, 0.1);
    --bbk-border-color-hover: rgba(255, 255, 255, 0.2);
    --bbk-text-primary: #ffffff;
    --bbk-text-secondary: #B6C7D9;
    --bbk-text-tertiary: #8899A8;
    --bbk-accent: #20D4DA;
    --bbk-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --bbk-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --bbk-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Base Block Styles
   ========================================================================== */

.bbk-brand-block {
    margin: 2rem 0;
    font-family: inherit;
    background: transparent;
}

.bbk-brand-block__title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--bbk-text-primary);
    margin: 0 0 1rem 0;
    line-height: 1.2;
}

.bbk-brand-color-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--bbk-text-tertiary);
    margin-bottom: 16px;
}

.bbk-brand-empty {
    padding: 2rem;
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-lg);
    text-align: center;
    color: var(--bbk-text-secondary);
    font-style: italic;
}

/* ==========================================================================
   Color Palette Block - Grid Layouts
   ========================================================================== */

.bbk-brand-color-grid {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 4), 1fr);
    gap: 1.25rem;
    background: transparent;
}

.bbk-brand-color-grid--layout-list {
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.bbk-brand-color-grid--layout-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.bbk-brand-color-grid--layout-row {
    display: flex;
    gap: 2px;
    border-radius: var(--bbk-radius-lg);
    overflow: hidden;
}

@media (max-width: 900px) {
    .bbk-brand-color-grid:not(.bbk-brand-color-grid--layout-list):not(.bbk-brand-color-grid--layout-inline):not(.bbk-brand-color-grid--layout-row) {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .bbk-brand-color-grid:not(.bbk-brand-color-grid--layout-list):not(.bbk-brand-color-grid--layout-inline):not(.bbk-brand-color-grid--layout-row) {
        grid-template-columns: repeat(2, 1fr);
    }
    .bbk-brand-color-grid--layout-row {
        flex-direction: column;
    }
}

/* ==========================================================================
   Color Swatch Styles
   ========================================================================== */

/* --- Common Swatch Styles --- */
.bbk-brand-color-swatch__name {
    display: block;
    font-weight: 600;
    font-size: 13px;
    color: inherit;
}

.bbk-brand-color-swatch__hex,
.bbk-brand-color-swatch__hex-below {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
}

.bbk-brand-color-swatch__slug {
    display: block;
    font-family: var(--bbk-font-mono);
    font-size: 10px;
    opacity: 0.6;
    word-break: break-all;
}

/* --- Card Style --- */
.bbk-brand-color-swatch--card {
    background: var(--bbk-bg-card);
    border-radius: var(--bbk-radius-xl);
    overflow: hidden;
    border: 1px solid var(--bbk-border-color);
    box-shadow: var(--bbk-shadow-sm);
    transition: all var(--bbk-transition);
}

.bbk-brand-color-swatch--card:hover {
    background: var(--bbk-bg-card-hover);
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--bbk-shadow-lg);
}

.bbk-brand-color-swatch--card .bbk-brand-color-swatch__color {
    height: 100px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 12px;
}

.bbk-brand-color-swatch--card.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color { height: 60px; }
.bbk-brand-color-swatch--card.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color { height: 140px; }

.bbk-brand-color-swatch--card .bbk-brand-color-swatch__hex {
    font-weight: 600;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 4px;
    backdrop-filter: blur(4px);
    color: #333;
}

.bbk-brand-color-swatch--card .bbk-brand-color-swatch__info {
    padding: 16px 20px;
}

.bbk-brand-color-swatch--card .bbk-brand-color-swatch__name {
    color: var(--bbk-text-primary);
    margin-bottom: 2px;
}

.bbk-brand-color-swatch--card .bbk-brand-color-swatch__hex-below {
    color: var(--bbk-text-tertiary);
}

/* --- Large Card Style --- */
.bbk-brand-color-swatch--large-card {
    background: var(--bbk-bg-card);
    border-radius: var(--bbk-radius-2xl);
    overflow: hidden;
    border: 1px solid var(--bbk-border-color);
    box-shadow: var(--bbk-shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-color-swatch--large-card:hover {
    background: var(--bbk-bg-card-hover);
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-6px);
    box-shadow: var(--bbk-shadow-lg);
}

.bbk-brand-color-swatch--large-card .bbk-brand-color-swatch__color {
    height: 180px;
    display: flex;
    align-items: flex-end;
    padding: 24px;
}

.bbk-brand-color-swatch--large-card .bbk-brand-color-swatch__hex {
    font-size: 13px;
    font-weight: 700;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--bbk-radius-sm);
    color: #333;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.bbk-brand-color-swatch--large-card .bbk-brand-color-swatch__info {
    padding: 24px;
}

.bbk-brand-color-swatch--large-card .bbk-brand-color-swatch__name {
    font-size: 18px;
    font-weight: 700;
    color: var(--bbk-text-primary);
}

/* --- Chip Style (Horizontal Expandable) --- */
.bbk-brand-color-swatch--chip,
.bbk-brand-color-swatch--row {
    flex: 1;
    position: relative;
    cursor: pointer;
    transition: flex 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-color-swatch--chip:hover,
.bbk-brand-color-swatch--row:hover {
    flex: 2;
}

.bbk-brand-color-swatch--chip .bbk-brand-color-swatch__color,
.bbk-brand-color-swatch--row .bbk-brand-color-swatch__color {
    height: 140px;
    position: relative;
}

.bbk-brand-color-swatch--chip.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color,
.bbk-brand-color-swatch--row.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    height: 80px;
}

.bbk-brand-color-swatch--chip.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color,
.bbk-brand-color-swatch--row.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    height: 200px;
}

.bbk-brand-color-swatch--chip .bbk-brand-color-swatch__overlay,
.bbk-brand-color-swatch--row .bbk-brand-color-swatch__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.3s ease;
}

.bbk-brand-color-swatch--chip:hover .bbk-brand-color-swatch__overlay,
.bbk-brand-color-swatch--row:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
    transform: translateY(0);
}

.bbk-brand-color-swatch--chip .bbk-brand-color-swatch__name,
.bbk-brand-color-swatch--row .bbk-brand-color-swatch__name {
    color: white;
    margin-bottom: 2px;
}

.bbk-brand-color-swatch--chip .bbk-brand-color-swatch__hex,
.bbk-brand-color-swatch--row .bbk-brand-color-swatch__hex {
    color: rgba(255, 255, 255, 0.7);
    background: none;
    padding: 0;
}

@media (max-width: 600px) {
    .bbk-brand-color-swatch--chip .bbk-brand-color-swatch__color,
    .bbk-brand-color-swatch--row .bbk-brand-color-swatch__color {
        height: 80px;
    }
}

/* --- Circle Style --- */
.bbk-brand-color-swatch--circle {
    text-align: center;
    background: transparent;
}

.bbk-brand-color-swatch--circle .bbk-brand-color-swatch__color {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: transform var(--bbk-transition);
}

.bbk-brand-color-swatch--circle.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    width: 48px;
    height: 48px;
}

.bbk-brand-color-swatch--circle.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    width: 120px;
    height: 120px;
}

.bbk-brand-color-swatch--circle:hover .bbk-brand-color-swatch__color {
    transform: scale(1.15);
}

.bbk-brand-color-swatch--circle .bbk-brand-color-swatch__name {
    color: var(--bbk-text-primary);
}

.bbk-brand-color-swatch--circle .bbk-brand-color-swatch__hex-below {
    color: var(--bbk-text-tertiary);
}

/* --- Square Style --- */
.bbk-brand-color-swatch--square {
    background: transparent;
}

.bbk-brand-color-swatch--square .bbk-brand-color-swatch__color {
    aspect-ratio: 1;
    border-radius: var(--bbk-radius-md);
    margin-bottom: 12px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    transition: all var(--bbk-transition);
}

.bbk-brand-color-swatch--square:hover .bbk-brand-color-swatch__color {
    transform: scale(1.05);
    border-radius: var(--bbk-radius-lg);
}

.bbk-brand-color-swatch--square .bbk-brand-color-swatch__name {
    color: var(--bbk-text-primary);
}

/* --- Pill Style --- */
.bbk-brand-color-swatch--pill {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bbk-bg-card);
    backdrop-filter: blur(20px);
    border-radius: 100px;
    padding: 8px 20px 8px 8px;
    border: 1px solid var(--bbk-border-color);
    transition: all var(--bbk-transition);
}

.bbk-brand-color-swatch--pill:hover {
    transform: translateX(4px);
    border-color: var(--bbk-border-color-hover);
}

.bbk-brand-color-swatch--pill .bbk-brand-color-swatch__color {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.bbk-brand-color-swatch--pill.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    width: 28px;
    height: 28px;
}

.bbk-brand-color-swatch--pill.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    width: 56px;
    height: 56px;
}

.bbk-brand-color-swatch--pill .bbk-brand-color-swatch__info {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.bbk-brand-color-swatch--pill .bbk-brand-color-swatch__name {
    color: var(--bbk-text-primary);
}

.bbk-brand-color-swatch--pill .bbk-brand-color-swatch__hex-below {
    color: var(--bbk-text-tertiary);
}

/* --- Stripe Style --- */
.bbk-brand-color-grid--stripe {
    gap: 0;
}

.bbk-brand-color-swatch--stripe {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--bbk-border-color);
    transition: background var(--bbk-transition);
}

.bbk-brand-color-swatch--stripe:hover {
    background: var(--bbk-bg-card);
}

.bbk-brand-color-swatch--stripe:last-child {
    border-bottom: none;
}

.bbk-brand-color-swatch--stripe .bbk-brand-color-swatch__color {
    width: 120px;
    height: 48px;
    flex-shrink: 0;
}

.bbk-brand-color-swatch--stripe.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    width: 80px;
    height: 32px;
}

.bbk-brand-color-swatch--stripe.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    width: 180px;
    height: 72px;
}

.bbk-brand-color-swatch--stripe .bbk-brand-color-swatch__info {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.bbk-brand-color-swatch--stripe .bbk-brand-color-swatch__name {
    color: var(--bbk-text-primary);
}

.bbk-brand-color-swatch--stripe .bbk-brand-color-swatch__hex-below {
    color: var(--bbk-text-tertiary);
}

/* --- Minimal Style --- */
.bbk-brand-color-swatch--minimal {
    background: transparent;
    text-align: center;
}

.bbk-brand-color-swatch--minimal .bbk-brand-color-swatch__color {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.bbk-brand-color-swatch--minimal.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    height: 16px;
    border-radius: 8px;
}

.bbk-brand-color-swatch--minimal .bbk-brand-color-swatch__name {
    font-size: 11px;
    font-weight: 500;
    color: var(--bbk-text-secondary);
}

/* ==========================================================================
   21st Century Brand Styles (Light Background)
   Based on brand-guide.html - All feature hover-based text reveal
   ========================================================================== */

/* --- Brand Chips Style (Horizontal Expandable - from brand-guide.html) --- */
.bbk-brand-color-grid--layout-brand-chips {
    display: flex;
    gap: 2px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.bbk-brand-color-swatch--brand-chips {
    flex: 1;
    position: relative;
    cursor: pointer;
    transition: flex 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-color-swatch--brand-chips:hover {
    flex: 2;
}

.bbk-brand-color-swatch--brand-chips .bbk-brand-color-swatch__color {
    height: 140px;
    position: relative;
}

.bbk-brand-color-swatch--brand-chips.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    height: 80px;
}

.bbk-brand-color-swatch--brand-chips.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    height: 200px;
}

.bbk-brand-color-swatch--brand-chips .bbk-brand-color-swatch__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.3s ease;
}

.bbk-brand-color-swatch--brand-chips:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
    transform: translateY(0);
}

.bbk-brand-color-swatch--brand-chips .bbk-brand-color-swatch__name {
    font-size: 13px;
    font-weight: 600;
    color: white;
    margin-bottom: 2px;
}

.bbk-brand-color-swatch--brand-chips .bbk-brand-color-swatch__hex {
    font-size: 11px;
    font-family: ui-monospace, 'SF Mono', Monaco, monospace;
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 600px) {
    .bbk-brand-color-grid--layout-brand-chips {
        flex-direction: column;
        border-radius: 12px;
    }
    .bbk-brand-color-swatch--brand-chips .bbk-brand-color-swatch__color {
        height: 80px;
    }
}

/* --- Brand Squares Style (Grid with gaps, sharp corners, hover reveal) --- */
.bbk-brand-color-grid--layout-brand-squares {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 4), 1fr);
    gap: 12px;
}

.bbk-brand-color-swatch--brand-squares {
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bbk-brand-color-swatch--brand-squares:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.bbk-brand-color-swatch--brand-squares .bbk-brand-color-swatch__color {
    aspect-ratio: 1;
    position: relative;
    border-radius: 0; /* Sharp corners */
}

.bbk-brand-color-swatch--brand-squares .bbk-brand-color-swatch__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent 80%);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.3s ease;
}

.bbk-brand-color-swatch--brand-squares:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
    transform: translateY(0);
}

.bbk-brand-color-swatch--brand-squares .bbk-brand-color-swatch__name {
    font-size: 12px;
    font-weight: 600;
    color: white;
    margin-bottom: 2px;
}

.bbk-brand-color-swatch--brand-squares .bbk-brand-color-swatch__hex {
    font-size: 10px;
    font-family: ui-monospace, 'SF Mono', Monaco, monospace;
    color: rgba(255, 255, 255, 0.8);
}

@media (max-width: 600px) {
    .bbk-brand-color-grid--layout-brand-squares {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Brand Bars Style (Full-width horizontal bars, stacked vertically) --- */
.bbk-brand-color-grid--layout-brand-bars {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.bbk-brand-color-swatch--brand-bars {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.bbk-brand-color-swatch--brand-bars:hover {
    z-index: 1;
}

.bbk-brand-color-swatch--brand-bars .bbk-brand-color-swatch__color {
    height: 56px;
    position: relative;
    transition: height 0.3s ease;
}

.bbk-brand-color-swatch--brand-bars:hover .bbk-brand-color-swatch__color {
    height: 72px;
}

.bbk-brand-color-swatch--brand-bars.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    height: 40px;
}

.bbk-brand-color-swatch--brand-bars.bbk-brand-color-swatch--size-small:hover .bbk-brand-color-swatch__color {
    height: 52px;
}

.bbk-brand-color-swatch--brand-bars.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    height: 80px;
}

.bbk-brand-color-swatch--brand-bars.bbk-brand-color-swatch--size-large:hover .bbk-brand-color-swatch__color {
    height: 100px;
}

.bbk-brand-color-swatch--brand-bars .bbk-brand-color-swatch__overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.4) 0%, transparent 50%, rgba(0, 0, 0, 0.4) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-color-swatch--brand-bars:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
}

.bbk-brand-color-swatch--brand-bars .bbk-brand-color-swatch__name {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

.bbk-brand-color-swatch--brand-bars .bbk-brand-color-swatch__hex {
    font-size: 12px;
    font-family: ui-monospace, 'SF Mono', Monaco, monospace;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.2);
    padding: 4px 10px;
    border-radius: 4px;
}

/* --- Brand Cards Style (Glassmorphic cards with hover lift) --- */
.bbk-brand-color-grid--layout-brand-cards {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 4), 1fr);
    gap: 20px;
}

.bbk-brand-color-swatch--brand-cards {
    position: relative;
    cursor: pointer;
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-color-swatch--brand-cards:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 0, 0, 0.08);
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__color {
    height: 120px;
    position: relative;
}

.bbk-brand-color-swatch--brand-cards.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    height: 80px;
}

.bbk-brand-color-swatch--brand-cards.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    height: 160px;
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent);
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.3s ease;
}

.bbk-brand-color-swatch--brand-cards:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
    transform: translateY(0);
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__overlay .bbk-brand-color-swatch__name {
    font-size: 13px;
    font-weight: 600;
    color: white;
    margin-bottom: 2px;
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__overlay .bbk-brand-color-swatch__hex {
    font-size: 11px;
    font-family: ui-monospace, 'SF Mono', Monaco, monospace;
    color: rgba(255, 255, 255, 0.8);
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__info {
    padding: 20px;
    background: #ffffff;
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__info .bbk-brand-color-swatch__name {
    font-size: 15px;
    font-weight: 600;
    color: #171A1F;
    margin-bottom: 4px;
}

.bbk-brand-color-swatch--brand-cards .bbk-brand-color-swatch__info .bbk-brand-color-swatch__hex {
    font-size: 12px;
    font-family: ui-monospace, 'SF Mono', Monaco, monospace;
    color: #444B57;
}

@media (max-width: 900px) {
    .bbk-brand-color-grid--layout-brand-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .bbk-brand-color-grid--layout-brand-cards {
        grid-template-columns: 1fr;
    }
}

/* --- Grid Expand Style (Touching grid, expand on hover) --- */
.bbk-brand-color-grid--layout-grid-expand,
.bbk-brand-color-grid--grid-expand {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 4), 1fr);
    gap: 0;
    border-radius: var(--bbk-radius-xl);
    overflow: hidden;
    box-shadow: var(--bbk-shadow-md);
}

.bbk-brand-color-swatch--grid-expand {
    position: relative;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.bbk-brand-color-swatch--grid-expand:hover {
    transform: scale(1.15);
    z-index: 10;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    border-radius: var(--bbk-radius-md);
}

.bbk-brand-color-swatch--grid-expand .bbk-brand-color-swatch__color {
    aspect-ratio: 1;
    position: relative;
    border-radius: 0;
}

.bbk-brand-color-swatch--grid-expand .bbk-brand-color-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 8px;
    text-align: center;
}

.bbk-brand-color-swatch--grid-expand:hover .bbk-brand-color-swatch__overlay {
    opacity: 1;
}

.bbk-brand-color-swatch--grid-expand .bbk-brand-color-swatch__overlay .bbk-brand-color-swatch__name {
    font-size: 11px;
    font-weight: 600;
    color: white;
    margin-bottom: 2px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.bbk-brand-color-swatch--grid-expand .bbk-brand-color-swatch__overlay .bbk-brand-color-swatch__hex {
    font-size: 10px;
    font-family: var(--bbk-font-mono);
    color: rgba(255, 255, 255, 0.9);
}

/* Size variations for grid-expand */
.bbk-brand-color-swatch--grid-expand.bbk-brand-color-swatch--size-small .bbk-brand-color-swatch__color {
    min-height: 60px;
}
.bbk-brand-color-swatch--grid-expand.bbk-brand-color-swatch--size-medium .bbk-brand-color-swatch__color {
    min-height: 80px;
}
.bbk-brand-color-swatch--grid-expand.bbk-brand-color-swatch--size-large .bbk-brand-color-swatch__color {
    min-height: 120px;
}

@media (max-width: 768px) {
    .bbk-brand-color-grid--layout-grid-expand,
    .bbk-brand-color-grid--grid-expand {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .bbk-brand-color-grid--layout-grid-expand,
    .bbk-brand-color-grid--grid-expand {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================================
   Gradient Showcase Block
   ========================================================================== */

.bbk-brand-gradient-list {
    background: transparent;
}

.bbk-brand-gradient-list--stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.bbk-brand-gradient-list--grid {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 2), 1fr);
    gap: 16px;
}

.bbk-brand-gradient-list--cards {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 2), 1fr);
    gap: 16px;
}

@media (max-width: 768px) {
    .bbk-brand-gradient-list--grid,
    .bbk-brand-gradient-list--cards {
        grid-template-columns: 1fr;
    }
}

/* Gradient Item Base */
.bbk-brand-gradient-item {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-xl);
    padding: 24px;
    box-shadow: var(--bbk-shadow-sm);
    transition: all 0.4s ease;
}

.bbk-brand-gradient-item:hover {
    background: var(--bbk-bg-card-hover);
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--bbk-shadow-lg);
}

.bbk-brand-gradient-item__preview {
    height: 100px;
    border-radius: var(--bbk-radius-md);
    margin-bottom: 20px;
}

.bbk-brand-gradient-item__name {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--bbk-text-primary);
    margin-bottom: 4px;
}

.bbk-brand-gradient-item__code {
    display: block;
    font-family: var(--bbk-font-mono);
    font-size: 12px;
    color: var(--bbk-text-tertiary);
}

/* Gradient Circle Style */
.bbk-brand-gradient-item--circle {
    text-align: center;
    background: transparent;
    border: none;
    padding: 12px;
}

.bbk-brand-gradient-item--circle:hover {
    transform: none;
    background: transparent;
}

.bbk-brand-gradient-item--circle .bbk-brand-gradient-item__preview {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.bbk-brand-gradient-item--circle:hover .bbk-brand-gradient-item__preview {
    transform: scale(1.1);
}

/* Gradient Square Style */
.bbk-brand-gradient-item--square .bbk-brand-gradient-item__preview {
    aspect-ratio: 1;
    height: auto;
    border-radius: var(--bbk-radius-lg);
}

/* Gradient Card Style */
.bbk-brand-gradient-item--card {
    padding: 0;
    overflow: hidden;
}

.bbk-brand-gradient-item--card .bbk-brand-gradient-item__preview {
    height: 140px;
    border-radius: 0;
    margin-bottom: 0;
}

.bbk-brand-gradient-item--card .bbk-brand-gradient-item__info {
    padding: 20px 24px;
}

/* ==========================================================================
   Gradient Showcase Block - NEW Layout System (matching Color Palette)
   ========================================================================== */

/* Gradient Grid Base */
.bbk-brand-gradient-grid {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 3), 1fr);
    gap: 1.25rem;
    background: transparent;
}

/* Layout Variations */
.bbk-brand-gradient-grid--layout-grid {
    grid-template-columns: repeat(var(--bbk-columns, 3), 1fr);
}

.bbk-brand-gradient-grid--layout-row {
    display: flex;
    flex-wrap: nowrap;
    gap: 0;
    overflow: hidden;
    border-radius: var(--bbk-radius-xl);
}

.bbk-brand-gradient-grid--layout-stack {
    grid-template-columns: 1fr;
    gap: 1rem;
}

.bbk-brand-gradient-grid--layout-list {
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.bbk-brand-gradient-grid--layout-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Gradient Swatch Base */
.bbk-brand-gradient-swatch {
    position: relative;
    cursor: pointer;
    transition: all var(--bbk-transition);
}

.bbk-brand-gradient-swatch__preview {
    width: 100%;
    height: 100%;
    min-height: 80px;
    border-radius: var(--bbk-radius-lg);
    transition: all var(--bbk-transition);
}

.bbk-brand-gradient-swatch__info {
    padding: 12px 0 0;
}

.bbk-brand-gradient-swatch__name {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--bbk-text-primary);
    margin-bottom: 4px;
}

.bbk-brand-gradient-swatch__code {
    display: block;
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
    word-break: break-all;
}

/* Size Variations */
.bbk-brand-gradient-swatch--size-small .bbk-brand-gradient-swatch__preview {
    min-height: 60px;
}

.bbk-brand-gradient-swatch--size-medium .bbk-brand-gradient-swatch__preview {
    min-height: 100px;
}

.bbk-brand-gradient-swatch--size-large .bbk-brand-gradient-swatch__preview {
    min-height: 160px;
}

/* Style: Card */
.bbk-brand-gradient-swatch--card {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-xl);
    overflow: hidden;
    box-shadow: var(--bbk-shadow-sm);
}

.bbk-brand-gradient-swatch--card:hover {
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--bbk-shadow-lg);
}

.bbk-brand-gradient-swatch--card .bbk-brand-gradient-swatch__preview {
    border-radius: 0;
}

.bbk-brand-gradient-swatch--card .bbk-brand-gradient-swatch__info {
    padding: 16px 20px 20px;
}

.bbk-brand-gradient-swatch--card .bbk-brand-gradient-swatch__preview {
    position: relative;
}

.bbk-brand-gradient-swatch--card .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--card:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--card .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 13px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Large Card */
.bbk-brand-gradient-swatch--large-card {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-2xl);
    overflow: hidden;
    box-shadow: var(--bbk-shadow-sm);
}

.bbk-brand-gradient-swatch--large-card:hover {
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-6px);
    box-shadow: var(--bbk-shadow-lg);
}

.bbk-brand-gradient-swatch--large-card .bbk-brand-gradient-swatch__preview {
    min-height: 180px;
    border-radius: 0;
}

.bbk-brand-gradient-swatch--large-card .bbk-brand-gradient-swatch__info {
    padding: 24px;
}

.bbk-brand-gradient-swatch--large-card .bbk-brand-gradient-swatch__preview {
    position: relative;
}

.bbk-brand-gradient-swatch--large-card .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--large-card:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--large-card .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 14px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Bar */
.bbk-brand-gradient-swatch--bar .bbk-brand-gradient-swatch__preview {
    height: 48px;
    min-height: 48px;
    border-radius: var(--bbk-radius-md);
    position: relative;
}

.bbk-brand-gradient-swatch--bar .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--bbk-radius-md);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--bar:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--bar .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 12px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Square */
.bbk-brand-gradient-swatch--square .bbk-brand-gradient-swatch__preview {
    aspect-ratio: 1;
    min-height: unset;
    position: relative;
    border-radius: var(--bbk-radius-lg);
}

.bbk-brand-gradient-swatch--square .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--bbk-radius-lg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--square:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--square .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 12px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Circle */
.bbk-brand-gradient-swatch--circle {
    text-align: center;
}

.bbk-brand-gradient-swatch--circle .bbk-brand-gradient-swatch__preview {
    width: 100px;
    height: 100px;
    min-height: unset;
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.bbk-brand-gradient-swatch--circle:hover .bbk-brand-gradient-swatch__preview {
    transform: scale(1.1);
}

.bbk-brand-gradient-swatch--circle .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--circle:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--circle .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 10px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    padding: 4px;
    text-align: center;
}

/* Style: Pill */
.bbk-brand-gradient-swatch--pill .bbk-brand-gradient-swatch__preview {
    border-radius: 9999px;
    height: 40px;
    min-height: 40px;
    position: relative;
    overflow: hidden;
}

.bbk-brand-gradient-swatch--pill .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 9999px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--pill:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--pill .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 11px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Minimal */
.bbk-brand-gradient-swatch--minimal .bbk-brand-gradient-swatch__preview {
    border-radius: var(--bbk-radius-sm);
    position: relative;
}

.bbk-brand-gradient-swatch--minimal .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--bbk-radius-sm);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--minimal:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--minimal .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 11px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Style: Chip (Expandable) */
.bbk-brand-gradient-swatch--chip {
    flex: 1 1 auto;
    min-width: 60px;
    transition: flex 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-gradient-grid--layout-row .bbk-brand-gradient-swatch--chip {
    border-radius: 0;
}

.bbk-brand-gradient-grid--layout-row .bbk-brand-gradient-swatch--chip:first-child {
    border-radius: var(--bbk-radius-xl) 0 0 var(--bbk-radius-xl);
}

.bbk-brand-gradient-grid--layout-row .bbk-brand-gradient-swatch--chip:last-child {
    border-radius: 0 var(--bbk-radius-xl) var(--bbk-radius-xl) 0;
}

.bbk-brand-gradient-swatch--chip:hover {
    flex: 2 1 auto;
}

.bbk-brand-gradient-swatch--chip .bbk-brand-gradient-swatch__preview {
    border-radius: 0;
    min-height: 80px;
}

.bbk-brand-gradient-swatch--chip .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--chip:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--chip .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    color: white;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* Style: Minimal */
.bbk-brand-gradient-swatch--minimal .bbk-brand-gradient-swatch__preview {
    border-radius: var(--bbk-radius-sm);
}

.bbk-brand-gradient-swatch--minimal .bbk-brand-gradient-swatch__info {
    padding: 8px 0 0;
}

/* Brand Styles for Gradients */

/* Brand Chips (21C) */
.bbk-brand-gradient-grid--layout-brand-chips {
    display: flex;
    flex-wrap: nowrap;
    gap: 0;
    border-radius: var(--bbk-radius-2xl);
    overflow: hidden;
}

.bbk-brand-gradient-swatch--brand-chips {
    flex: 1 1 auto;
    min-width: 50px;
    transition: flex 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bbk-brand-gradient-swatch--brand-chips:hover {
    flex: 2.5 1 auto;
}

.bbk-brand-gradient-swatch--brand-chips .bbk-brand-gradient-swatch__preview {
    min-height: 100px;
    border-radius: 0;
    position: relative;
}

.bbk-brand-gradient-swatch--brand-chips .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 12px;
    text-align: center;
}

.bbk-brand-gradient-swatch--brand-chips:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--brand-chips .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 12px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* Brand Squares (21C) */
.bbk-brand-gradient-grid--layout-brand-squares {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.bbk-brand-gradient-swatch--brand-squares .bbk-brand-gradient-swatch__preview {
    aspect-ratio: 1;
    min-height: unset;
    border-radius: 0;
    position: relative;
}

.bbk-brand-gradient-swatch--brand-squares .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 12px;
}

.bbk-brand-gradient-swatch--brand-squares:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--brand-squares .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 13px;
    font-weight: 600;
    color: white;
}

/* Brand Bars (21C) */
.bbk-brand-gradient-grid--layout-brand-bars {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: var(--bbk-radius-lg);
    overflow: hidden;
}

.bbk-brand-gradient-swatch--brand-bars .bbk-brand-gradient-swatch__preview {
    min-height: 56px;
    border-radius: 0;
    position: relative;
}

.bbk-brand-gradient-swatch--brand-bars .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: linear-gradient(to right, rgba(0,0,0,0.5) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--brand-bars:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--brand-bars .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

/* Brand Cards (21C) */
.bbk-brand-gradient-grid--layout-brand-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.bbk-brand-gradient-swatch--brand-cards {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--bbk-radius-xl);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.bbk-brand-gradient-swatch--brand-cards:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__preview {
    min-height: 120px;
    border-radius: 0;
    position: relative;
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bbk-brand-gradient-swatch--brand-cards:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 13px;
    font-weight: 600;
    color: white;
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__info {
    padding: 20px;
    background: #ffffff;
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__info .bbk-brand-gradient-swatch__name {
    font-size: 15px;
    font-weight: 600;
    color: #171A1F;
    margin-bottom: 4px;
}

.bbk-brand-gradient-swatch--brand-cards .bbk-brand-gradient-swatch__info .bbk-brand-gradient-swatch__code {
    font-size: 11px;
    color: #444B57;
}

/* --- Grid Expand Style for Gradients (Touching grid, expand on hover) --- */
.bbk-brand-gradient-grid--layout-grid-expand,
.bbk-brand-gradient-grid--grid-expand {
    display: grid;
    grid-template-columns: repeat(var(--bbk-columns, 3), 1fr);
    gap: 0;
    border-radius: var(--bbk-radius-xl);
    overflow: hidden;
    box-shadow: var(--bbk-shadow-md);
}

.bbk-brand-gradient-swatch--grid-expand {
    position: relative;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.bbk-brand-gradient-swatch--grid-expand:hover {
    transform: scale(1.15);
    z-index: 10;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    border-radius: var(--bbk-radius-md);
}

.bbk-brand-gradient-swatch--grid-expand .bbk-brand-gradient-swatch__preview {
    aspect-ratio: 1;
    min-height: unset;
    border-radius: 0;
    position: relative;
}

.bbk-brand-gradient-swatch--grid-expand .bbk-brand-gradient-swatch__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 8px;
    text-align: center;
}

.bbk-brand-gradient-swatch--grid-expand:hover .bbk-brand-gradient-swatch__overlay {
    opacity: 1;
}

.bbk-brand-gradient-swatch--grid-expand .bbk-brand-gradient-swatch__overlay .bbk-brand-gradient-swatch__name {
    font-size: 11px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Size variations for grid-expand gradients */
.bbk-brand-gradient-swatch--grid-expand.bbk-brand-gradient-swatch--size-small .bbk-brand-gradient-swatch__preview {
    min-height: 60px;
}
.bbk-brand-gradient-swatch--grid-expand.bbk-brand-gradient-swatch--size-medium .bbk-brand-gradient-swatch__preview {
    min-height: 80px;
}
.bbk-brand-gradient-swatch--grid-expand.bbk-brand-gradient-swatch--size-large .bbk-brand-gradient-swatch__preview {
    min-height: 120px;
}

@media (max-width: 768px) {
    .bbk-brand-gradient-grid--layout-grid-expand,
    .bbk-brand-gradient-grid--grid-expand {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive for gradient layouts */
@media (max-width: 768px) {
    .bbk-brand-gradient-grid--layout-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bbk-brand-gradient-grid--layout-row,
    .bbk-brand-gradient-grid--layout-brand-chips {
        flex-direction: column;
        border-radius: var(--bbk-radius-lg);
    }
    
    .bbk-brand-gradient-grid--layout-row .bbk-brand-gradient-swatch--chip:first-child,
    .bbk-brand-gradient-grid--layout-row .bbk-brand-gradient-swatch--chip:last-child {
        border-radius: 0;
    }
}

/* ==========================================================================
   Typography Samples Block - NEW Layout System
   ========================================================================== */

/* Typography Grid */
.bbk-brand-typography-grid {
    display: grid;
    gap: 1rem;
}

/* Layout: Stack */
.bbk-brand-typography-samples--layout-stack .bbk-brand-typography-grid {
    grid-template-columns: 1fr;
}

/* Layout: Grid */
.bbk-brand-typography-samples--layout-grid .bbk-brand-typography-grid {
    grid-template-columns: repeat(var(--bbk-columns, 2), 1fr);
}

/* Layout: List */
.bbk-brand-typography-samples--layout-list .bbk-brand-typography-grid {
    grid-template-columns: 1fr;
    gap: 0;
}

.bbk-brand-typography-samples--layout-list .bbk-brand-font-family,
.bbk-brand-typography-samples--layout-list .bbk-brand-font-size {
    border-radius: 0;
    border-bottom: 1px solid var(--bbk-border-color);
    margin-bottom: 0;
}

.bbk-brand-typography-samples--layout-list .bbk-brand-font-family:first-child,
.bbk-brand-typography-samples--layout-list .bbk-brand-font-size:first-child {
    border-radius: var(--bbk-radius-lg) var(--bbk-radius-lg) 0 0;
}

.bbk-brand-typography-samples--layout-list .bbk-brand-font-family:last-child,
.bbk-brand-typography-samples--layout-list .bbk-brand-font-size:last-child {
    border-radius: 0 0 var(--bbk-radius-lg) var(--bbk-radius-lg);
    border-bottom: none;
}

/* Layout: Cards */
.bbk-brand-typography-samples--layout-cards .bbk-brand-typography-grid {
    grid-template-columns: repeat(var(--bbk-columns, 2), 1fr);
    gap: 1.25rem;
}

/* Card Style: Card */
.bbk-brand-font-family--card,
.bbk-brand-font-size--card {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-lg);
    padding: 32px;
    box-shadow: var(--bbk-shadow-sm);
    transition: all var(--bbk-transition);
}

.bbk-brand-font-family--card:hover,
.bbk-brand-font-size--card:hover {
    border-color: var(--bbk-border-color-hover);
    transform: translateY(-2px);
    box-shadow: var(--bbk-shadow-md);
}

/* Card Style: Minimal */
.bbk-brand-font-family--minimal,
.bbk-brand-font-size--minimal {
    background: transparent;
    border: none;
    padding: 16px 0;
    border-bottom: 1px solid var(--bbk-border-color);
}

.bbk-brand-font-family--minimal:last-child,
.bbk-brand-font-size--minimal:last-child {
    border-bottom: none;
}

/* Card Style: Bordered */
.bbk-brand-font-family--bordered,
.bbk-brand-font-size--bordered {
    background: transparent;
    border: 2px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-lg);
    padding: 32px;
    transition: all var(--bbk-transition);
}

.bbk-brand-font-family--bordered:hover,
.bbk-brand-font-size--bordered:hover {
    border-color: var(--bbk-accent);
}

/* Brand Card Style (21C) */
.bbk-brand-font-family--brand-card,
.bbk-brand-font-size--brand-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--bbk-radius-xl);
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.bbk-brand-font-family--brand-card:hover,
.bbk-brand-font-size--brand-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.bbk-brand-font-family--brand-card .bbk-brand-font-family__name,
.bbk-brand-font-size--brand-card .bbk-brand-font-size__name {
    color: #171A1F;
}

.bbk-brand-font-family--brand-card .bbk-brand-font-family__sample,
.bbk-brand-font-size--brand-card .bbk-brand-font-size__sample {
    color: #171A1F;
}

/* Brand Minimal Style (21C) */
.bbk-brand-font-family--brand-minimal,
.bbk-brand-font-size--brand-minimal {
    background: transparent;
    padding: 20px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.bbk-brand-font-family--brand-minimal:last-child,
.bbk-brand-font-size--brand-minimal:last-child {
    border-bottom: none;
}

.bbk-brand-font-family--brand-minimal .bbk-brand-font-family__name,
.bbk-brand-font-size--brand-minimal .bbk-brand-font-size__name {
    color: #171A1F;
}

/* Responsive for typography layouts */
@media (max-width: 768px) {
    .bbk-brand-typography-samples--layout-grid .bbk-brand-typography-grid,
    .bbk-brand-typography-samples--layout-cards .bbk-brand-typography-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Typography Samples Block
   ========================================================================== */

.bbk-brand-typography-section {
    margin-bottom: 2.5rem;
}

.bbk-brand-typography-section:last-child {
    margin-bottom: 0;
}

.bbk-brand-typography-section__title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--bbk-text-tertiary);
    margin: 0 0 1.25rem 0;
}

/* Type Specimen Card */
.bbk-brand-type-specimen {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-2xl);
    padding: 48px;
    margin-bottom: 24px;
    box-shadow: var(--bbk-shadow-sm);
}

/* Font Family Items */
.bbk-brand-font-family {
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-lg);
    padding: 24px;
    margin-bottom: 1rem;
    box-shadow: var(--bbk-shadow-sm);
}

.bbk-brand-font-family__sample {
    font-size: 1.5rem;
    margin-bottom: 16px;
    line-height: 1.4;
    color: var(--bbk-text-primary);
}

.bbk-brand-font-family__info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.bbk-brand-font-family__name {
    font-weight: 600;
    font-size: 14px;
    color: var(--bbk-text-primary);
}

.bbk-brand-font-family__value {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
    background: var(--bbk-bg-card);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Font Size Items */
.bbk-brand-font-size {
    padding: 24px 0;
    border-bottom: 1px solid var(--bbk-border-color);
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
}

.bbk-brand-font-size:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.bbk-brand-font-size:first-child {
    padding-top: 0;
}

.bbk-brand-font-size__sample {
    line-height: 1.2;
    color: var(--bbk-text-primary);
    flex: 1;
    text-align: left;
    order: 1;
}

.bbk-brand-font-size__info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 140px;
    justify-content: flex-end;
    order: 2;
}

.bbk-brand-font-size__name {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--bbk-text-tertiary);
}

.bbk-brand-font-size__value {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
    background: var(--bbk-bg-subtle);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--bbk-border-color);
}

/* Text alignment variations */
.bbk-brand-typography-samples--align-left .bbk-brand-font-size__sample {
    text-align: left;
    order: 1;
}
.bbk-brand-typography-samples--align-left .bbk-brand-font-size__info {
    order: 2;
    justify-content: flex-end;
}

.bbk-brand-typography-samples--align-right .bbk-brand-font-size__sample {
    text-align: right;
    order: 2;
}
.bbk-brand-typography-samples--align-right .bbk-brand-font-size__info {
    order: 1;
    justify-content: flex-start;
}

@media (max-width: 768px) {
    .bbk-brand-font-size {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .bbk-brand-font-size__sample {
        text-align: left;
        order: 1;
    }
    .bbk-brand-font-size__info {
        order: 2;
        justify-content: flex-start;
    }
}

/* ==========================================================================
   Spacing Scale Block
   ========================================================================== */

.bbk-brand-spacing-list--horizontal {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bbk-brand-spacing-list--vertical {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-end;
}

.bbk-brand-spacing-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.bbk-brand-spacing-list--vertical .bbk-brand-spacing-item {
    flex-direction: column;
    align-items: center;
}

.bbk-brand-spacing-item__visual {
    background: var(--bbk-bg-card);
    border-radius: 4px;
    overflow: hidden;
}

.bbk-brand-spacing-list--horizontal .bbk-brand-spacing-item__visual {
    width: 200px;
    height: 24px;
}

.bbk-brand-spacing-list--vertical .bbk-brand-spacing-item__visual {
    width: 40px;
    min-height: 20px;
}

.bbk-brand-spacing-item__bar {
    background: linear-gradient(135deg, #2563EB 0%, #20D4DA 100%);
    height: 100%;
    min-width: 4px;
    min-height: 4px;
    border-radius: 2px;
}

.bbk-brand-spacing-item__info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.bbk-brand-spacing-list--vertical .bbk-brand-spacing-item__info {
    flex-direction: column;
    text-align: center;
}

.bbk-brand-spacing-item__name {
    font-weight: 600;
    font-size: 13px;
    color: var(--bbk-text-primary);
}

.bbk-brand-spacing-item__value {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
    background: var(--bbk-bg-card);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ==========================================================================
   Shadow Showcase Block
   ========================================================================== */

.bbk-brand-shadow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.bbk-brand-shadow-item {
    text-align: center;
}

.bbk-brand-shadow-item__preview {
    width: 100%;
    height: 80px;
    background: var(--bbk-bg-card);
    border-radius: var(--bbk-radius-lg);
    margin-bottom: 12px;
    transition: transform var(--bbk-transition);
}

.bbk-brand-shadow-item:hover .bbk-brand-shadow-item__preview {
    transform: translateY(-4px);
}

.bbk-brand-shadow-item__name {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--bbk-text-primary);
    margin-bottom: 4px;
}

.bbk-brand-shadow-item__code {
    display: block;
    font-family: var(--bbk-font-mono);
    font-size: 10px;
    color: var(--bbk-text-tertiary);
    word-break: break-all;
}

/* ==========================================================================
   Border Radius Block
   ========================================================================== */

.bbk-brand-radius-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.bbk-brand-radius-item {
    text-align: center;
}

.bbk-brand-radius-item__preview {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563EB 0%, #20D4DA 100%);
    margin: 0 auto 12px;
    transition: transform var(--bbk-transition);
}

.bbk-brand-radius-item:hover .bbk-brand-radius-item__preview {
    transform: scale(1.1);
}

.bbk-brand-radius-item__name {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--bbk-text-primary);
    margin-bottom: 4px;
}

.bbk-brand-radius-item__value {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
}

/* ==========================================================================
   Custom Properties Block
   ========================================================================== */

.bbk-brand-custom-section {
    margin-bottom: 2rem;
    background: var(--bbk-bg-card);
    border: 1px solid var(--bbk-border-color);
    border-radius: var(--bbk-radius-lg);
    padding: 24px;
    box-shadow: var(--bbk-shadow-sm);
}

.bbk-brand-custom-section:last-child {
    margin-bottom: 0;
}

.bbk-brand-custom-section__title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--bbk-accent);
    margin: 0 0 1rem 0;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--bbk-border-color);
}

.bbk-brand-custom-section__items {
    display: grid;
    gap: 0.5rem;
}

.bbk-brand-custom-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--bbk-border-color);
}

.bbk-brand-custom-item:last-child {
    border-bottom: none;
}

.bbk-brand-custom-item__name {
    font-weight: 500;
    font-size: 13px;
    color: var(--bbk-text-primary);
}

.bbk-brand-custom-item__value {
    font-family: var(--bbk-font-mono);
    font-size: 11px;
    color: var(--bbk-text-tertiary);
    background: var(--bbk-bg-card);
    padding: 4px 8px;
    border-radius: 4px;
    max-width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ==========================================================================
   Full Style Guide Block
   ========================================================================== */

.bbk-brand-style-guide {
    padding: 2rem;
}

.bbk-brand-style-guide__title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0 0 2.5rem 0;
    background: linear-gradient(135deg, var(--bbk-text-primary) 0%, var(--bbk-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bbk-brand-style-guide .bbk-brand-block {
    margin-bottom: 3rem;
}

.bbk-brand-style-guide .bbk-brand-block:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .bbk-brand-block {
        break-inside: avoid;
    }

    .bbk-brand-color-swatch--card,
    .bbk-brand-gradient-item,
    .bbk-brand-font-family,
    .bbk-brand-custom-section {
        box-shadow: none;
        border: 1px solid #ddd;
        backdrop-filter: none;
        background: #fff;
    }
}

/* ==========================================================================
   Click-to-Copy Feedback
   ========================================================================== */

.bbk-brand-color-swatch[data-color],
.bbk-brand-gradient-swatch[data-gradient] {
    cursor: pointer;
    position: relative;
}

.bbk-copy-feedback {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.bbk-copy-feedback--visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Light feedback for dark swatches */
.bbk-brand-color-swatch[data-color] .bbk-copy-feedback {
    backdrop-filter: blur(8px);
}