/* ==========================================================================
   OSLO CREATION - ELEGANT LIGHT THEME DESIGN SYSTEM & ANIMATIONS
   Inspired by Minimalist Architectural & Surface Design Aesthetics
   ========================================================================== */

:root {
    --bg-body: #FAF9F6;
    --bg-card: #FFFFFF;
    --bg-alt: #F4F1EA;
    --bg-accent: #EAE5DC;

    --text-title: #1A1A1A;
    --text-body: #4A4A4D;
    --text-muted: #7A7A7E;
    --text-light: #9E9E9E;

    --accent-primary: #8C6D46;
    --accent-dark: #2C2C2C;
    --accent-light: #C4A47C;
    --accent-soft: rgba(140, 109, 70, 0.12);

    --border-color: #E2DDD5;
    --border-light: rgba(0, 0, 0, 0.08);

    /* Typography: Apple San Francisco Design System */
    --font-heading: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'San Francisco', 'SF Pro Text', 'SF Pro', system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'San Francisco', 'SF Pro Text', 'SF Pro', system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-sans: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'San Francisco', 'SF Pro Text', 'SF Pro', system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    --shadow-subtle: 0 10px 30px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 20px 45px rgba(140, 109, 70, 0.15);

    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Strict Overflow Prevention */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-body);
    color: var(--text-body);
    font-family: var(--font-sans);
    overflow-x: hidden;
    width: 100%;
}

body {
    line-height: 1.7;
    overflow-x: hidden;
    width: 100%;
    background-color: var(--bg-body);
    word-wrap: break-word;
    hyphens: auto;
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: #FFFFFF;
}

/* Typography with Fluid Scaling */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-serif);
    color: var(--text-title);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.01em;
    word-break: break-word;
}

p {
    color: var(--text-body);
    font-weight: 300;
    word-break: break-word;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   SCROLL REVEAL CONTENT ANIMATIONS
   ========================================================================== */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal-fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal-fade-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.revealed {
    opacity: 1 !important;
    transform: translate(0, 0) scale(1) !important;
}

/* Header Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 6%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(250, 249, 246, 0.92);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    padding: 0.8rem 6%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.96);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-area img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
    color: var(--text-title);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.social-header-links {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-header-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-title);
    transition: var(--transition);
}

.social-header-icon:hover {
    background: var(--accent-dark);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-title);
    cursor: pointer;
    padding: 6px;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-card);
    z-index: 1001;
    padding: 3rem 2rem;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
    transition: right 0.4s ease;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu-overlay.active {
    right: 0;
}

.mobile-close-btn {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--text-title);
    padding: 4px;
}

.mobile-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-nav-list a {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--text-title);
    display: block;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 9rem 6% 5rem 6%;
    background: linear-gradient(rgba(20, 20, 20, 0.5), rgba(20, 20, 20, 0.65)),
        url('../images/hero_bg.jpg') center/cover no-repeat;
    color: #FFFFFF;
    width: 100%;
}

.hero-content {
    max-width: 900px;
    z-index: 2;
    width: 100%;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 300;
    line-height: 1.1;
    color: #FFFFFF;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 300;
    max-width: 720px;
    margin: 0 auto 3rem auto;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero-btn-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn-hero-primary {
    padding: 1.1rem 2.8rem;
    background: rgba(140, 109, 70, 0.85);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    display: inline-block;
    border-radius: 2px;
}

.btn-hero-primary:hover {
    background: #FFFFFF;
    color: var(--text-title);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.btn-hero-secondary {
    padding: 1.1rem 2.8rem;
    background: #FFFFFF;
    color: var(--text-title);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    border: 1px solid #FFFFFF;
    transition: var(--transition);
    display: inline-block;
    border-radius: 2px;
}

.btn-hero-secondary:hover {
    background: var(--accent-dark);
    color: #FFFFFF;
    border-color: var(--accent-dark);
    transform: translateY(-3px);
}

/* Page Header Banner for Multipage */
.page-banner {
    position: relative;
    padding: clamp(7rem, 12vw, 9rem) 6% 4rem 6%;
    background-color: #1A1A1A;
    background-image: linear-gradient(rgba(26, 26, 26, 0.65), rgba(26, 26, 26, 0.75)),
        url('../images/opt/banner_bg.jpg');
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    color: #FFFFFF;
    text-align: center;
    width: 100%;
}

.page-banner-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    color: #FFFFFF;
    margin-bottom: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.page-banner-breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.8);
    flex-wrap: wrap;
}

.page-banner-breadcrumb a {
    color: var(--accent-light);
}

.page-banner-breadcrumb a:hover {
    color: #FFFFFF;
}

/* Floating WhatsApp Button */
.floating-action-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: #25D366;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.floating-action-btn:hover {
    transform: scale(1.1);
}

/* Section Layouts */
.section {
    padding: clamp(4rem, 8vw, 7rem) 6%;
    width: 100%;
}

.section-alt {
    background-color: var(--bg-alt);
}

.section-header {
    margin-bottom: 3.5rem;
    width: 100%;
}

.section-header.text-center {
    text-align: center;
}

.section-tag {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 0.8rem;
}

.section-heading-large {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 400;
    color: var(--text-title);
}

/* Design Philosophy Section */
.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3.5rem;
    align-items: center;
    width: 100%;
}

.philosophy-content h2 {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    margin-bottom: 1.8rem;
    font-weight: 400;
}

.philosophy-subheading {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.3rem;
    color: var(--accent-primary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.philosophy-block {
    margin-bottom: 2rem;
}

.philosophy-block h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    margin-bottom: 0.4rem;
    color: var(--text-title);
}

.philosophy-block p {
    font-size: 0.98rem;
    color: var(--text-body);
    line-height: 1.7;
}

.philosophy-graphic {
    position: relative;
    background: var(--bg-accent);
    padding: 1.2rem;
    border-radius: 4px;
    width: 100%;
}

.philosophy-graphic img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: 2px;
}

/* ==========================================================================
   WHO WE ARE SECTION (MASTERPIECE STAGGERED ARCHITECTURAL SHOWCASE)
   ========================================================================== */
.who-we-are-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.who-we-are-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3.2rem 2.8rem;
    border-radius: 6px;
    box-shadow: var(--shadow-subtle);
}

.who-we-are-card h2 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    margin-bottom: 1.2rem;
}

.who-we-are-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
    border-left: 3px solid var(--accent-primary);
    padding-left: 1.2rem;
}

.who-we-are-card p {
    font-size: 1rem;
    color: var(--text-body);
    line-height: 1.75;
    margin-bottom: 1.2rem;
}

.who-we-are-badges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.who-we-are-badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--bg-alt);
    padding: 1rem 0.6rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.who-we-are-badge-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    background: #FFFFFF;
}

.who-we-are-badge-item i {
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 0.4rem;
}

.who-we-are-badge-item strong {
    font-size: 0.8rem;
    color: var(--text-title);
    font-family: var(--font-sans);
    font-weight: 600;
}

.who-we-are-gallery-staggered {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
}

.who-we-are-gallery-staggered .img-main {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
}

.who-we-are-gallery-staggered .img-sub {
    width: 85%;
    height: 220px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-hover);
    margin-top: -3.5rem;
    margin-left: auto;
    transition: var(--transition);
    z-index: 2;
}

.who-we-are-gallery-staggered img:hover {
    transform: scale(1.03);
    border-color: var(--accent-primary);
}

/* ==========================================================================
   ZIG-ZAG ALTERNATING SPLIT WORKFLOW SHOWCASE (`about.php`)
   ========================================================================== */
.process-zigzag-wrapper {
    display: flex;
    flex-direction: column;
    gap: 5rem;
    margin-top: 4rem;
    width: 100%;
}

.process-zigzag-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.process-zigzag-row.reverse .zigzag-content {
    order: 2;
}

.process-zigzag-row.reverse .zigzag-graphic {
    order: 1;
}

.zigzag-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.zigzag-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.zigzag-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 400;
    color: var(--text-title);
    margin-bottom: 1.2rem;
    line-height: 1.25;
}

.zigzag-desc {
    font-size: 1.05rem;
    color: var(--text-body);
    line-height: 1.75;
    margin-bottom: 1.8rem;
}

.zigzag-highlights {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.2rem;
}

.zigzag-highlights li {
    font-size: 0.92rem;
    color: var(--text-title);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.zigzag-highlights li i {
    color: var(--accent-primary);
    font-size: 0.85rem;
}

.zigzag-graphic {
    position: relative;
    background: var(--bg-card);
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    overflow: hidden;
}

.zigzag-graphic:hover {
    box-shadow: var(--shadow-hover);
    transform: scale(1.02);
    border-color: var(--accent-primary);
}

.zigzag-graphic img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 4px;
    transition: transform 0.8s ease;
}

.zigzag-graphic:hover img {
    transform: scale(1.06);
}

/* ==========================================================================
   SERVICES SHOWCASE ("WHAT WE PROVIDE")
   ========================================================================== */
.services-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.2rem;
    width: 100%;
}

.service-media-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-subtle);
}

.service-media-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
    border-color: var(--accent-primary);
}

.service-media-preview {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: #0D0D0D;
    width: 100%;
}

.service-media-preview img,
.service-media-preview video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
    filter: brightness(0.92);
}

.service-media-card:hover .service-media-preview img,
.service-media-card:hover .service-media-preview video {
    transform: scale(1.1);
    filter: brightness(1.02);
}

.service-media-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(26, 26, 26, 0.85);
    color: var(--accent-light);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 6px 14px;
    border-radius: 20px;
    backdrop-filter: blur(12px);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(140, 109, 70, 0.4);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}


.service-media-content {
    padding: 2rem 1.8rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-number {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--accent-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.service-media-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
}

.service-media-content p {
    font-size: 0.92rem;
    color: var(--text-body);
    line-height: 1.65;
    margin-bottom: 1.5rem;
}

.service-features-list {
    list-style: none;
    margin-bottom: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.service-features-list li {
    font-size: 0.88rem;
    color: var(--text-title);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-features-list li i {
    color: var(--accent-primary);
    font-size: 0.8rem;
}

.btn-service-action {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    color: var(--accent-primary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-service-action:hover {
    color: var(--accent-dark);
    transform: translateX(5px);
}

/* ==========================================================================
   REDESIGNED MASTER MOLD & SLAB SHOWCASE
   ========================================================================== */
.master-slab-showcase {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3.5rem 3rem;
    border-radius: 6px;
    box-shadow: var(--shadow-subtle);
    width: 100%;
}

.master-slab-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 3.5rem;
    align-items: center;
}

.master-slab-info h3 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    margin-bottom: 1rem;
}

.master-slab-info p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-body);
}

.master-slab-specs-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.slab-spec-card {
    background: var(--bg-alt);
    padding: 1rem 1.2rem;
    border-left: 3px solid var(--accent-primary);
    border-radius: 2px;
}

.slab-spec-card strong {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.slab-spec-card span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-title);
}

.master-slab-gallery {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.slab-gallery-card {
    position: relative;
    height: 240px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    cursor: pointer;
}

.slab-gallery-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-primary);
}

.slab-gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.slab-gallery-card:hover img {
    transform: scale(1.08);
}

.slab-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
    padding: 1.2rem 1rem 0.8rem 1rem;
    color: #FFFFFF;
    transition: var(--transition);
}

.slab-card-overlay h5 {
    font-size: 1rem;
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-weight: 600;
}

.slab-card-overlay span {
    font-size: 0.75rem;
    color: var(--accent-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   PORTFOLIO GRID (3-COLUMN LAYOUT)
   ========================================================================== */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.8rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-title);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--accent-dark);
    color: #FFFFFF;
    border-color: var(--accent-dark);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.2rem;
    width: 100%;
}

.portfolio-item {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    border-radius: 4px;
}

.portfolio-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.portfolio-img {
    height: 320px;
    overflow: hidden;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.08);
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 0.4rem;
}

.portfolio-title {
    font-size: 1.3rem;
    color: var(--text-title);
}

/* Lightbox Modal */
.lightbox-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    background: var(--bg-card);
    max-width: 850px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.lightbox-content.single-col {
    grid-template-columns: 1fr;
    max-width: 700px;
}

.lightbox-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.85);
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-title);
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-img-box img,
.lightbox-img-box video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lightbox-details {
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.btn-lightbox-quote {
    margin-top: 1.5rem;
    padding: 0.9rem 1.8rem;
    background: var(--accent-primary);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-lightbox-quote:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

/* ==========================================================================
   INTERACTIVE FAQ ACCORDION
   ========================================================================== */
.faq-accordion-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    width: 100%;
}

.faq-accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-accordion-item:hover {
    border-color: var(--accent-primary);
}

.faq-accordion-header {
    padding: 1.4rem 1.8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.faq-accordion-header h4 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-title);
    margin: 0;
}

.faq-icon-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 0.9rem;
    transition: transform 0.4s ease, background 0.3s ease;
    flex-shrink: 0;
}

.faq-accordion-item.active .faq-icon-toggle {
    transform: rotate(180deg);
    background: var(--accent-primary);
    color: #FFFFFF;
}

.faq-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0, 1, 0, 1);
    background: var(--bg-body);
}

.faq-accordion-item.active .faq-accordion-body {
    max-height: 600px;
    transition: max-height 0.5s ease-in-out;
}

.faq-content-inner {
    padding: 1.2rem 1.8rem 1.8rem 1.8rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.7;
}

/* ==========================================================================
   HOMEPAGE GLOBAL SURFACE CONSULTATION HUB
   ========================================================================== */
.consultation-hub-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 4rem 3.5rem;
    border-radius: 6px;
    box-shadow: var(--shadow-subtle);
    width: 100%;
}

.consultation-hub-header {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 3rem auto;
}

.consultation-hub-header h3 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 1rem;
}

.consultation-hub-header p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-body);
}

.consultation-action-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
    margin-bottom: 3rem;
}

.consultation-card {
    background: var(--bg-alt);
    padding: 2rem 1.5rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 220px;
}

.consultation-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-primary);
    background: #FFFFFF;
}

.consultation-card i {
    font-size: 2.2rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.consultation-card h5 {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-title);
}

.consultation-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.consultation-hub-footer-cta {
    text-align: center;
}

/* Contact Page Grid */
.contact-grid-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    width: 100%;
}

.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
    border-radius: 4px;
}

.contact-info-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.contact-detail-item {
    margin-bottom: 1.2rem;
}

.contact-detail-item strong {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.wechat-scanner-box {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.wechat-qr-wrapper {
    width: 110px;
    height: 110px;
    background: #FFFFFF;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    flex-shrink: 0;
}

.wechat-qr-wrapper:hover {
    transform: scale(1.05);
    border-color: var(--accent-primary);
}

.wechat-qr-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.wechat-info {
    flex-grow: 1;
}

.wechat-info h5 {
    font-size: 1.1rem;
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.wechat-info h5 i {
    color: #07C160;
    font-size: 1.2rem;
}

.wechat-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.wechat-id-badge {
    display: inline-block;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 4px 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-dark);
    border-radius: 2px;
}

.email-highlight-box {
    margin-top: 1rem;
    padding: 1rem 1.2rem;
    background: var(--accent-soft);
    border-left: 3px solid var(--accent-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.email-highlight-box i {
    font-size: 1.3rem;
    color: var(--accent-primary);
}

.email-highlight-box a {
    font-weight: 600;
    color: var(--text-title);
    font-size: 0.95rem;
}

.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem;
    width: 100%;
    border-radius: 4px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-title);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1rem;
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    color: var(--text-title);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--accent-dark);
    background: #FFFFFF;
}

/* Embedded Map Section */
.map-embed-wrapper {
    width: 100%;
    margin-top: 4rem;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 1rem;
    box-shadow: var(--shadow-subtle);
    border-radius: 4px;
}

.map-embed-container {
    position: relative;
    width: 100%;
    height: 420px;
    overflow: hidden;
}

.map-embed-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* ==========================================================================
   CLEAN 3-COLUMN FOOTER LAYOUT
   ========================================================================== */
.site-footer {
    background: #F4F1EA;
    border-top: 1px solid var(--border-color);
    padding: 5rem 6% 2rem 6%;
    width: 100%;
}

.footer-top-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid var(--border-color);
    width: 100%;
    align-items: start;
}

.footer-col-title {
    font-family: var(--font-sans);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-title);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-social-icons {
    display: flex;
    gap: 10px;
}

.footer-social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-title);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-social-icon:hover {
    background: var(--accent-dark);
    color: #FFFFFF;
}

.footer-bottom-bar {
    padding-top: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-brand-logo img {
    height: 55px;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {

    .services-showcase-grid,
    .portfolio-grid,
    .consultation-action-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.8rem;
    }

    .process-zigzag-row,
    .who-we-are-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .process-zigzag-row.reverse .zigzag-content {
        order: 1;
    }

    .process-zigzag-row.reverse .zigzag-graphic {
        order: 2;
    }

    .philosophy-grid,
    .master-slab-grid,
    .contact-grid-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .site-footer {
        text-align: center;
    }

    .footer-top-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
        text-align: center;
    }

    .footer-top-grid > div {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-social-icons {
        justify-content: center;
    }

    .footer-bottom-bar {
        justify-content: center;
        text-align: center;
        flex-direction: column;
        gap: 0.8rem;
    }

    .footer-brand-logo {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 768px) {

    .services-showcase-grid,
    .portfolio-grid,
    .consultation-action-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .nav-links,
    .social-header-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .footer-top-grid {
        grid-template-columns: 1fr;
        gap: 2.2rem;
        text-align: center;
    }

    .lightbox-content {
        grid-template-columns: 1fr;
    }

    .master-slab-gallery,
    .master-slab-specs-list,
    .who-we-are-badges {
        grid-template-columns: 1fr;
    }

    .contact-info-card,
    .contact-form-card,
    .consultation-hub-wrapper,
    .master-slab-showcase,
    .who-we-are-card {
        padding: 2rem 1.5rem;
    }

    .wechat-scanner-box {
        flex-direction: column;
        text-align: center;
    }

    .floating-action-btn {
        bottom: 20px;
        left: 20px;
        width: 48px;
        height: 48px;
        font-size: 1.3rem;
    }

    .who-we-are-gallery-staggered .img-sub {
        width: 100%;
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 3.5rem 5%;
    }

    .hero-btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        text-align: center;
    }

    .faq-accordion-header {
        padding: 1.2rem 1.2rem;
    }

    .faq-content-inner {
        padding: 1rem 1.2rem 1.4rem 1.2rem;
    }

    .lightbox-details {
        padding: 1.8rem 1.2rem;
    }

    .zigzag-graphic img {
        height: 260px;
    }
}

/* ==========================================================================
   OUR CLIENTS ANIMATED MARQUEE SECTION
   ========================================================================== */
.clients-marquee-section {
    position: relative;
    overflow: hidden;
    padding: 4.5rem 0;
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.clients-marquee-container {
    display: flex;
    width: 100%;
    overflow: hidden;
    user-select: none;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    padding: 1rem 0;
}

.clients-marquee-track {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-shrink: 0;
    white-space: nowrap;
    animation: clientMarquee 35s linear infinite;
    will-change: transform;
}

.clients-marquee-container:hover .clients-marquee-track {
    animation-play-state: paused;
}

@keyframes clientMarquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.client-badge-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1rem 1.8rem;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    transition: var(--transition);
    cursor: default;
    min-width: 200px;
}

.client-badge-card.logo-card {
    padding: 0.6rem;
    width: 130px;
    height: 130px;
    min-width: 130px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.client-logo-img {
    max-height: 95px;
    max-width: 115px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(10%);
    transition: var(--transition);
}

.client-badge-card.logo-card:hover .client-logo-img {
    filter: grayscale(0%);
    transform: scale(1.08);
}

.client-badge-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.client-icon-box {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.client-badge-info h5 {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-title);
    margin: 0;
    line-height: 1.2;
}

.client-badge-info span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.clients-metrics-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
    padding: 0 5%;
}

.client-metric-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.client-metric-number {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
}

.client-metric-label {
    font-size: 0.85rem;
    color: var(--text-body);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   EXPO & EXHIBITIONS SECTION (INDEX PREVIEW & EXPO PAGE)
   ========================================================================== */
.expo-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3.5rem;
}

.expo-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-subtle);
}

.expo-stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.expo-stat-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 0.8rem;
}

.expo-stat-number {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-title);
    line-height: 1;
    margin-bottom: 0.4rem;
}

.expo-stat-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

.expo-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.expo-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-subtle);
    display: flex;
    flex-direction: column;
}

.expo-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-hover);
}

.expo-card-banner {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.expo-card-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.expo-card:hover .expo-card-banner img {
    transform: scale(1.08);
}

.expo-badge-status {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(26, 26, 26, 0.85);
    backdrop-filter: blur(8px);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 14px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.expo-badge-status.upcoming {
    background: rgba(140, 109, 70, 0.9);
    border-color: var(--accent-light);
}

.expo-location-tag {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-title);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.expo-card-body {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.expo-date-meta {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.expo-card-title {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--text-title);
}

.expo-card-excerpt {
    font-size: 0.92rem;
    color: var(--text-body);
    margin-bottom: 1.2rem;
    flex-grow: 1;
}

.expo-card-highlights {
    border-top: 1px dashed var(--border-color);
    padding-top: 1rem;
    margin-top: auto;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.expo-card-highlights strong {
    color: var(--text-title);
}

.expo-card-footer {
    padding: 1.2rem 1.8rem;
    background: var(--bg-body);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.btn-expo-details {
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    background: none;
    border: none;
    cursor: pointer;
}

.btn-expo-details:hover {
    color: var(--accent-dark);
    transform: translateX(4px);
}

/* Expo Dedicated Page Hero & Filters */
.expo-hero {
    background: linear-gradient(rgba(26, 26, 26, 0.7), rgba(26, 26, 26, 0.7)), url('../images/opt/expo_bg.jpg') center/cover no-repeat;
    padding: 8rem 5% 5rem 5%;
    text-align: center;
    color: #FFFFFF;
}

/* Custom H3 Detail Title Typography */
h3#lb-title,
.collection-detail-title,
.expo-detail-title,
.detail-heading-h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-title);
}

.expo-hero h1 {
    color: #FFFFFF;
    font-size: 3.2rem;
    margin-bottom: 1rem;
}

.expo-hero p {
    color: #E2DDD5;
    max-width: 760px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.expo-filter-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.expo-filter-btn {
    padding: 0.6rem 1.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-body);
    cursor: pointer;
    transition: var(--transition);
}

.expo-filter-btn:hover,
.expo-filter-btn.active {
    background: var(--accent-primary);
    color: #FFFFFF;
    border-color: var(--accent-primary);
    box-shadow: 0 4px 15px rgba(140, 109, 70, 0.25);
}

/* Booth Booking Banner CTA */
.booth-booking-banner {
    background: linear-gradient(135deg, var(--accent-dark) 0%, #111111 100%);
    color: #FFFFFF;
    padding: 4rem 8%;
    border-radius: 12px;
    margin-top: 5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.booth-booking-content h3 {
    color: #FFFFFF;
    font-size: 2.2rem;
    margin-bottom: 0.8rem;
}

.booth-booking-content p {
    color: #CCCCCC;
    max-width: 600px;
    font-size: 0.98rem;
}

@media (max-width: 768px) {
    .clients-marquee-track {
        gap: 1rem;
        animation-duration: 25s;
    }

    .client-badge-card {
        padding: 0.8rem 1.2rem;
        min-width: 180px;
    }

    .clients-metrics-bar {
        gap: 1.5rem;
    }

    .expo-hero h1 {
        font-size: 2.4rem;
    }

    .booth-booking-banner {
        padding: 2.5rem 6%;
        text-align: center;
        justify-content: center;
    }
}