/* Google Fonts: Outfit */
:root {
    --bg-color: #0d0d0d;
    --bg-darker: #050505;
    --text-main: #f0f0f0;
    --text-muted: #a0a0a0;
    --accent-color: #cba36b; /* Metallic Bronze/Gold */
    --accent-hover: #b08a55;
    --border-color: #222;
    --glass-bg: rgba(13, 13, 13, 0.85);
    
    --font-primary: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-accent {
    color: var(--accent-color);
}

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

.section {
    padding: 6rem 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.lead {
    font-size: 1.25rem;
    color: var(--text-main);
    font-weight: 300;
    margin-bottom: 1.5rem;
}

.section-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    background-color: rgba(203, 163, 107, 0.1);
    color: var(--accent-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.section-desc {
    font-size: 1.1rem;
    max-width: 700px;
}

.text-center {
    text-align: center;
}
.text-center .section-desc {
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--text-main);
}

.btn-secondary:hover {
    background-color: var(--text-main);
    color: #000;
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: #000;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: 1rem 0;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
    transform: scale(4);
    transform-origin: left center;
    transition: var(--transition);
    filter: brightness(1.15);
}

.nav-list {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

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

.btn-contact {
    border: 1px solid var(--accent-color);
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    color: var(--accent-color);
}

.btn-contact::after {
    display: none;
}

.btn-contact:hover {
    background-color: var(--accent-color);
    color: #000;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 90px;
    left: 0;
    width: 100%;
    height: calc(100% - 90px);
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: left top;
    opacity: 0;
    transition: opacity 1s ease-in-out, transform 8s ease-out;
    transform: scale(1.05);
}

.slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 35%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    height: 100%;
    max-width: 100%;
    padding-bottom: 4rem;
}

.hero-subtitle {
    color: var(--accent-color);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.25rem;
    color: #ddd;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.slide-tag {
    display: inline-block;
    padding: 0.3rem 1.2rem;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

.center-tag {
    margin: 0 auto 1.5rem auto;
}

.display-xl {
    font-size: 5rem;
    line-height: 1;
}

.font-light {
    font-weight: 300;
}

.text-italic {
    font-style: italic;
    font-family: 'Times New Roman', Times, serif;
}

.text-outline {
    color: transparent;
    -webkit-text-stroke: 1px #fff;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.slide-description-box {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-left: 2px solid var(--accent-color);
    background: linear-gradient(to right, rgba(203, 163, 107, 0.1) 0%, transparent 100%);
}

.sleek-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sleek-list li {
    font-size: 1.1rem;
    color: #eee;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sleek-list li i {
    color: var(--accent-color);
    font-size: 1rem;
    width: 20px;
}

.mt-2 { margin-top: 2rem; }

.slide-lead {
    font-size: 1.25rem;
    color: #ccc;
    font-weight: 300;
    line-height: 1.6;
    margin-top: 1rem;
}

.max-w-800 { max-width: 800px; margin-left: auto; margin-right: auto; }

/* Split Layout for Slide 4 */
.split-slide {
    display: flex;
    width: 100%;
    height: 100%;
}

.split-image {
    width: 50%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.split-content {
    width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 5rem;
    background-color: var(--bg-darker);
    position: relative;
    z-index: 3;
}

.tech-specs {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.tech-item {
    padding: 0.5rem 1.5rem;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #fff;
    background: #111;
}

.slide-logo-center {
    height: 80px;
    margin: 0 auto 2rem auto;
    filter: brightness(0) invert(1); /* Makes logo white if it was dark */
}

.badge-text {
    display: flex;
    flex-direction: column;
    font-size: 0.8rem;
    line-height: 1.1;
}

.winner-badge {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.winner-badge strong {
    border: 1px solid var(--accent-color);
    padding: 0.25rem 0.5rem;
    color: var(--accent-color);
    font-size: 0.8rem;
}

.slide-description p {
    font-size: 1.2rem;
    color: #fff;
    margin: 0;
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 10;
    pointer-events: none;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: var(--transition);
    pointer-events: auto;
}

.slider-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #000;
}

.hero-global-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    padding: 3rem 0 2rem;
}

.hero-global-actions .container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.hero-desc {
    max-width: 500px;
    margin: 0;
    color: #ddd;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Intro Section */
.intro-section {
    padding: 6rem 0;
    background-color: #fff;
    color: #333;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.text-dark {
    color: #111 !important;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #444;
    text-align: justify;
    margin-bottom: 1.5rem;
}

.intro-highlights {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
    border-left: 3px solid var(--accent-color);
    padding-left: 1.5rem;
}

.intro-highlights li {
    font-size: 1.05rem;
    color: #333;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.intro-highlights li i {
    font-size: 1.2rem;
}

.premium-partner-card {
    background: #fff;
    padding: 1.5rem 1.5rem;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.4s ease;
    position: relative;
    overflow: hidden;
    max-width: 300px;
    margin: 0 auto;
}

.premium-partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-color);
}

.premium-partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.official-logo-img {
    width: 100%;
    max-width: 240px;
    height: auto;
    display: block;
    margin: -1rem auto 1rem auto;
}

.partner-status {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(203, 163, 107, 0.05);
    color: var(--accent-color);
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid rgba(203, 163, 107, 0.4);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.partner-status i {
    margin-right: 0.4rem;
    font-size: 0.8rem;
}

.partner-desc {
    color: #555;
    font-size: 0.8rem;
    line-height: 1.5;
    margin: 0;
    font-weight: 400;
}

.link-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.link-read-more:hover {
    color: #b58d55;
    gap: 0.75rem;
}

/* Brand Pillars */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.pillar-card {
    background-color: var(--bg-color);
    padding: 3rem 2rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.pillar-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.pillar-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.pillar-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.pillar-link {
    color: #fff;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--accent-color);
    padding-bottom: 0.2rem;
    transition: var(--transition);
}

.pillar-link:hover {
    color: var(--accent-color);
}

/* Services Section */
.services-section {
    background: linear-gradient(135deg, #2f2f35 0%, #222226 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    background: linear-gradient(145deg, #3d3d44 0%, #2c2c31 100%);
    border: 1px solid #4d4d55;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    padding: 3rem 2rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, transparent 100%);
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(203, 163, 107, 0.15);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem auto;
    background: rgba(203, 163, 107, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 50%;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--accent-color);
    color: #000;
}

.service-title {
    font-size: 1.25rem;
    color: #fff;
    margin-bottom: 1rem;
}

.service-desc {
    font-size: 0.95rem;
    color: #aaa;
    line-height: 1.6;
}

/* Products Grid Override */
.tostem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background-color: var(--bg-darker);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(203, 163, 107, 0.15);
    border-color: rgba(203, 163, 107, 0.3);
}

.product-img-wrapper {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.product-img-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--bg-darker) 0%, transparent 100%);
    z-index: 1;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.product-card:hover .product-img {
    transform: scale(1.1);
}

.product-info {
    padding: 0 2rem 2rem 2rem;
    position: relative;
    z-index: 2;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-info h3 {
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-info p {
    font-size: 0.95rem;
    color: #aaa;
    line-height: 1.6;
    margin-bottom: 2rem;
    flex-grow: 1;
}

/* Split Section (Testimonials & Gallery) */
.split-section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.testimonial-box {
    background: rgba(255,255,255,0.03);
    border-left: 3px solid var(--accent-color);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.quote {
    font-style: italic;
    font-size: 1.1rem;
    color: #ddd;
    margin-bottom: 1rem;
}

.author {
    font-weight: 600;
    color: var(--accent-color);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.gallery-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.gallery-img-sm {
    height: 120px;
    background-size: cover;
    background-position: center;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
}

.gallery-img-sm:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

/* Knowledge Centre (Blogs) */
.blogs-section {
    background-color: #f4f6f8;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.blogs-section .section-title {
    color: #111;
}

.blogs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.blog-card {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.blog-img-wrapper {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

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

.blog-card:hover .blog-img {
    transform: scale(1.05);
}

.blog-content {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #e25822; /* LIXIL Orange */
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    border-color: rgba(226, 88, 34, 0.2);
}

.blog-card:hover::before {
    transform: scaleX(1);
}

.blog-meta {
    font-size: 0.85rem;
    color: #e25822; /* LIXIL Orange */
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.blog-title {
    font-size: 1.4rem;
    color: #111;
    margin-bottom: 2rem;
    line-height: 1.4;
    font-weight: 700;
}

.blog-card .link-read-more {
    color: #555;
}

.blog-card:hover .link-read-more {
    color: #e25822;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-details {
    margin-top: 2.5rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.icon-box {
    width: 50px;
    height: 50px;
    background-color: rgba(203, 163, 107, 0.1);
    color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.contact-item a:hover {
    color: var(--accent-color);
}

.contact-form-wrapper {
    background-color: var(--bg-color);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.contact-form h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

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

.form-control {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-main);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* ARCHEN Logo Dark Pattern Background */
.archen-pattern {
    background-color: #080808;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 200 200'%3E%3Crect width='200' height='200' fill='%23080808'/%3E%3Crect x='3' y='3' width='94' height='94' fill='%23141414'/%3E%3Crect x='103' y='3' width='94' height='94' fill='%23141414'/%3E%3Crect x='3' y='103' width='94' height='94' fill='%23141414'/%3E%3Crect x='103' y='103' width='94' height='94' fill='%23141414'/%3E%3Cg fill='%23080808'%3E%3Cpath d='M 15,97 L 43,20 L 57,20 L 85,97 L 71,97 L 50,40 L 29,97 Z M 43,60 L 57,60 L 57,97 L 43,97 Z'/%3E%3C/g%3E%3Cg transform='translate(100,100)' fill='%23080808'%3E%3Cpath d='M 15,97 L 43,20 L 57,20 L 85,97 L 71,97 L 50,40 L 29,97 Z M 43,60 L 57,60 L 57,97 L 43,97 Z'/%3E%3C/g%3E%3C/svg%3E");
    background-repeat: repeat;
}

/* Footer */
.footer {
    background-color: transparent;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 2rem 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background-color: var(--accent-color);
    color: #000;
    border-color: var(--accent-color);
}

/* Animations & Utilities */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.appear, .fade-up.appear {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 35px;
    box-shadow: 2px 2px 15px rgba(0,0,0,0.4);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: #1ebe57;
    color: #FFF;
    transform: scale(1.1) translateY(-5px);
    box-shadow: 2px 2px 20px rgba(37, 211, 102, 0.6);
}

/* Responsive */
@media (max-width: 992px) {
    .about-grid, .contact-grid, .intro-grid {
        grid-template-columns: 1fr;
    }
    
    .pillars-grid, .tostem-grid, .blogs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .split-section-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .experience-badge {
        bottom: 0;
        left: 0;
    }
    
    .slide-title {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-darker);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }
    
    .nav-list.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    
    .menu-toggle {
        display: block;
    }
    
    .display-xl {
        font-size: 3.5rem;
    }
    
    .slide-title {
        font-size: 2.2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .tostem-logo-text {
        font-size: 2rem;
    }
    
    .tostem-tagline {
        font-size: 0.8rem;
    }
    
    .tostem-brand-overlay {
        top: 80px;
    }
    
    .slide-bottom-row {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 1rem;
    }
    
    .hero-global-actions .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .split-slide {
        flex-direction: column;
    }
    
    .split-image, .split-content {
        width: 100%;
    }
    
    .split-image {
        height: 40%;
    }
    
    .split-content {
        height: 60%;
        padding: 2rem;
    }
    
    .services-grid, .products-grid, .pillars-grid, .tostem-grid, .blogs-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-preview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}