/* ==========================================================================
   DESIGN SYSTEM & VARIABLES - PURE WHITE GLASS THEME
   ========================================================================== */
:root {
    /* Brand Colors (Pure White Theme & Wood Accent) */
    --bg-primary: #FFFFFF;          /* Pure White for seamless logo/image blending */
    --bg-secondary: #F8F9FA;        /* Very light clean grey/white for sections */
    --bg-glass: rgba(255, 255, 255, 0.75); /* Frosted Glass */
    --bg-glass-hover: rgba(255, 255, 255, 0.92);
    --border-glass: rgba(0, 0, 0, 0.05);   /* Very soft dark tint to define glass border on white */
    --border-glass-hover: rgba(164, 125, 60, 0.35); /* Soft gold rim on hover */
    
    --brand-color: #a47d3c;         /* Deeper golden oak for contrast */
    --brand-color-rgb: 164, 125, 60;
    --brand-light: #c5a059;
    --brand-glow: rgba(164, 125, 60, 0.12);
    --brand-glow-strong: rgba(164, 125, 60, 0.3);
    
    --text-primary: #1A1D20;        /* High-contrast dark grey text */
    --text-secondary: #4F545C;      /* Soft charcoal for body copy */
    --text-muted: #828892;
    
    /* Layout & Spacing Constraints */
    --max-width: 1200px;
    --header-height: 80px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2 {
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
    font-weight: 300;
    line-height: 1.25;
}

h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
    font-weight: 400;
    line-height: 1.25;
}

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

a:hover {
    color: var(--brand-light);
}

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

/* ==========================================================================
   REUSABLE UTILITIES & LAYOUTS
   ========================================================================== */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: clamp(3rem, 8vw, 6rem) 1.5rem;
}

/* Grid & Flexbox configurations */
.section-header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-tag {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--brand-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    letter-spacing: 1px;
}

.section-line {
    width: 60px;
    height: 3px;
    background-color: var(--brand-color);
    margin-top: 1rem;
    box-shadow: 0 0 10px var(--brand-glow);
}

/* Glassmorphism utility card */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.03);
    transition: var(--transition-smooth);
}

/* ==========================================================================
   HEADER NAVIGATION
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.88); /* Pure White translucent */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    height: 70px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.header-container {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-logo {
    height: 40px;
    width: auto;
    transition: var(--transition-smooth);
}

.main-header.scrolled .nav-logo {
    height: 32px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0.2rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-color);
    box-shadow: 0 0 8px var(--brand-glow-strong);
    transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

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

.nav-btn {
    border: 1px solid var(--brand-color);
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    box-shadow: 0 0 8px var(--brand-glow);
    color: var(--brand-color) !important;
}

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

.nav-btn:hover {
    background: var(--brand-color);
    color: var(--bg-primary) !important;
    box-shadow: 0 0 15px var(--brand-glow-strong);
}

/* Mobile Menu Toggle button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 2.5px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* ==========================================================================
   HERO BANNER SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 500px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: flex-end; /* Lower the text block to the bottom of the banner */
    padding-bottom: clamp(4rem, 10vh, 8rem); /* Spacing from the bottom edge */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* original colors preserved - only a very subtle fade at the very bottom to merge sections */
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 80%, rgba(255, 255, 255, 1) 100%);
    z-index: 1;
}

.hero-content-wrapper {
    position: relative;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    z-index: 2;
}

.hero-text-area {
    max-width: 600px;
    /* Clean transparent background - text is placed directly on the white studio background of the image */
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 300;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.6rem);
    color: var(--brand-color);
    letter-spacing: 5px;
    font-weight: 400;
    margin-bottom: 2.5rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: var(--brand-color);
    color: var(--bg-primary);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    padding: 1rem 2.2rem;
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--brand-glow), 0 2px 5px rgba(0, 0, 0, 0.05);
    transform: translateY(0);
    transition: var(--transition-smooth);
}

.cta-button i {
    transition: var(--transition-smooth);
}

.cta-button:hover {
    color: var(--bg-primary);
    background: var(--brand-light);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 6px 18px var(--brand-glow-strong);
}

.cta-button:hover i {
    transform: translateY(4px);
}

.cta-button.outline {
    background: transparent;
    border: 1px solid var(--brand-color);
    color: var(--brand-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.cta-button.outline:hover {
    background: var(--brand-color);
    color: var(--bg-primary);
    box-shadow: 0 6px 18px var(--brand-glow-strong);
}

.cta-button.outline:hover i {
    transform: translateX(4px);
}

/* ==========================================================================
   ABOUT US SECTION
   ========================================================================== */
.about-section {
    position: relative;
    padding: 5rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-glass);
}

.about-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.about-icon {
    width: 64px;
    height: auto;
    filter: drop-shadow(0 2px 6px rgba(164, 125, 60, 0.15));
}

.about-text-lead {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.1rem, 2.5vw, 1.45rem);
    font-weight: 350;
    color: var(--text-primary);
    line-height: 1.8;
}

.about-text-lead strong {
    color: var(--brand-color);
    font-weight: 600;
}

/* About Details Grid */
.about-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3.5rem;
    width: 100%;
    max-width: var(--max-width);
}

.about-detail-card {
    padding: clamp(1.5rem, 3vw, 2.2rem);
    border-radius: 10px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.about-detail-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-glass-hover);
    box-shadow: 0 10px 25px rgba(164, 125, 60, 0.08), 0 0 12px var(--brand-glow);
}

.about-detail-card h3 {
    font-size: 1.25rem;
    color: var(--brand-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.about-detail-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .about-details-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2.5rem;
    }
}

/* ==========================================================================
   FEATURES GRID SECTION
   ========================================================================== */
.features-section {
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.5rem, 4vw, 3rem);
}

.feature-card {
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
    transform: translateY(0);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: var(--border-glass-hover);
    box-shadow: 0 12px 30px rgba(164, 125, 60, 0.1), 0 0 15px var(--brand-glow);
}

.feature-img-wrapper {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.feature-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-image {
    transform: scale(1.05);
}

.feature-info-glass {
    padding: clamp(1.5rem, 3vw, 2.2rem);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    flex-grow: 1;
}

.feature-card-title {
    font-size: 1.4rem;
    color: var(--brand-color);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-card-title {
    color: var(--brand-light);
}

.feature-card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   PARALLAX SECTION
   ========================================================================== */
.parallax-section {
    position: relative;
    height: 60vh;
    min-height: 400px;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
}

/* Fallback for iOS devices since iOS disables background-attachment: fixed */
@supports (-webkit-overflow-scrolling: touch) {
    .parallax-section {
        background-attachment: scroll;
    }
}

.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.78); /* Soft white overlay over image background */
    z-index: 1;
}

.parallax-content {
    position: relative;
    max-width: 800px;
    padding: 0 1.5rem;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.parallax-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--brand-color);
    letter-spacing: 1px;
}

.parallax-desc {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-primary);
    line-height: 1.7;
    font-weight: 400;
}

.parallax-cta {
    margin-top: 1rem;
}

/* ==========================================================================
   SPECIFICATIONS SECTION (DIMENSIONS & COLORS)
   ========================================================================== */
.specs-section {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-glass);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.5rem, 4vw, 3rem);
}

.spec-card {
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
    transform: translateY(0);
    transition: var(--transition-smooth);
}

.spec-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: var(--border-glass-hover);
    box-shadow: 0 12px 30px rgba(164, 125, 60, 0.1), 0 0 15px var(--brand-glow);
}

.spec-card-header {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.45);
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.spec-card-header i {
    font-size: 1.5rem;
    color: var(--brand-color);
}

.spec-card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.spec-img-wrapper {
    position: relative;
    flex-grow: 1;
    overflow: hidden;
    background: #ffffff; /* pure white canvas background for specs drawings to blend */
}

.spec-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    transition: var(--transition-smooth);
}

.spec-card:hover .spec-image {
    transform: scale(1.03);
}

.spec-card-footer-glass {
    padding: 1.2rem 1.5rem;
    background: rgba(255, 255, 255, 0.7);
    border-top: 1px solid var(--border-glass);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   GALLERY SECTION
   ========================================================================== */
.gallery-section {
    background: var(--bg-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
}

.gallery-item {
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    border: 1px solid var(--border-glass);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transform: translateY(0);
    transition: var(--transition-smooth);
}

.gallery-item:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--border-glass-hover);
    box-shadow: 0 10px 25px rgba(164, 125, 60, 0.1), 0 0 15px var(--brand-glow);
}

.gallery-img-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.06);
}

.gallery-hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0;
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-hover-overlay {
    opacity: 1;
}

.gallery-hover-overlay i {
    font-size: 1.8rem;
    color: var(--brand-color);
    transform: scale(0.7);
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-hover-overlay i {
    transform: scale(1);
}

.gallery-hover-overlay span {
    font-size: 0.85rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* ==========================================================================
   FAQ SECTION
   ========================================================================== */
.faq-section {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-glass);
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.faq-item {
    padding: clamp(1.5rem, 3vw, 2.2rem);
    border-radius: 10px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: var(--border-glass-hover);
    box-shadow: 0 10px 25px rgba(164, 125, 60, 0.08), 0 0 12px var(--brand-glow);
    transform: translateY(-3px);
}

.faq-question {
    font-size: 1.15rem;
    color: var(--brand-color);
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-glass);
}

.contact-grid {
    display: grid;
    grid-template-columns: 4fr 5fr;
    gap: clamp(1.5rem, 4vw, 3rem);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card-glass {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border-radius: 8px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.info-card-glass:hover {
    border-color: var(--border-glass-hover);
    box-shadow: 0 8px 25px rgba(164, 125, 60, 0.1), 0 0 12px var(--brand-glow);
    transform: translateX(4px);
}

.info-icon {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    background: rgba(164, 125, 60, 0.08);
    border: 1px solid rgba(164, 125, 60, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon i {
    font-size: 1.3rem;
    color: var(--brand-color);
}

.info-details {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.info-details span {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-link {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-primary);
}

.info-link:hover {
    color: var(--brand-color);
}

.info-text {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Simplified Inquiry Card */
.action-card-glass {
    padding: 2.5rem;
    border-radius: 10px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    height: 100%;
    justify-content: center;
}

.action-card-glass h3 {
    font-size: 1.6rem;
    color: var(--brand-color);
    font-weight: 600;
}

.action-card-glass p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.action-card-glass .cta-button {
    align-self: flex-start;
    margin-top: 1rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-glass);
    padding: 4rem 0 2rem 0;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 5fr 4fr 3fr;
    gap: clamp(2rem, 5vw, 4rem);
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.footer-logo {
    height: 42px;
    width: auto;
    align-self: flex-start;
}

.footer-brand-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--brand-color);
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.partner-logo-wrapper {
    background: #ffffff;
    padding: 0.8rem;
    border-radius: 6px;
    display: inline-block;
    border: 1px solid rgba(0, 0, 0, 0.05); /* very soft light border */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.partner-logo-wrapper:hover {
    box-shadow: 0 8px 25px rgba(164, 125, 60, 0.15);
    transform: translateY(-3px);
}

.partner-logo {
    height: 65px;
    width: auto;
    display: block;
}

.footer-links {
    display: flex;
    flex-direction: column;
}

.footer-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-nav-list a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-nav-list a:hover {
    color: var(--brand-color);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-glass);
    text-align: center;
}

.copyright-notice {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==========================================================================
   LIGHTBOX MODAL FOR GALLERY - KEPT DARK FOR PRODUCT FOCUS
   ========================================================================== */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(8, 10, 15, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-modal.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

.lightbox-caption {
    margin-top: 1rem;
    color: #f5f6f8;
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: transparent;
    border: none;
    color: #f5f6f8;
    font-size: 3rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 2100;
}

.lightbox-close:hover {
    color: var(--brand-color);
    transform: rotate(90deg);
}

.lightbox-prev, .lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #f5f6f8;
    font-size: 2rem;
    padding: 1rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 2100;
}

.lightbox-prev:hover, .lightbox-next:hover {
    background: var(--brand-color);
    color: var(--bg-primary);
    box-shadow: 0 0 15px var(--brand-glow-strong);
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

/* ==========================================================================
   SCROLL ANIMATION CLASSES (scroll-reveal / animate-up)
   ========================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Hero animations on load */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.animate-up-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s cubic-bezier(0.25, 0.8, 0.25, 1) 0.3s forwards;
}

.animate-up-delay-more {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s cubic-bezier(0.25, 0.8, 0.25, 1) 0.6s forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */

/* Tablet Viewport (< 992px) */
@media (max-width: 991px) {
    :root {
        --header-height: 70px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-glass);
        padding: 3rem 1.5rem;
        display: block;
        transform: translateX(-100%);
        transition: transform 0.4s ease-in-out;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 2rem;
    }
    
    .nav-link {
        display: block;
        font-size: 1.2rem;
        padding: 0.8rem 0;
        border-bottom: 1px solid var(--border-glass);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-btn {
        text-align: center;
        margin-top: 1rem;
        padding: 1rem;
    }
    
    /* Toggle active class bars */
    .mobile-menu-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    /* Layout adjustments */
    .features-grid, .specs-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    
    .footer-brand, .footer-partner {
        align-items: center;
    }
    
    .footer-logo {
        align-self: center;
    }
    
    .lightbox-prev, .lightbox-next {
        padding: 0.8rem 1rem;
        font-size: 1.5rem;
    }
}

/* Compact Mobile Viewport (< 576px) */
@media (max-width: 575px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .lightbox-prev {
        left: 0.5rem;
    }
    
    .lightbox-next {
        right: 0.5rem;
    }
    
    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }
}

/* Screen Reader Only Utility for SEO Link text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}