/* ==========================================================================
   INDIGITAL XR - MODERNIZED STYLESHEET
   ========================================================================== */

/* ==========================================================================
   1. ROOT VARIABLES & DESIGN TOKENS
   ========================================================================== */

:root {
    /* Primary Colors */
    --moss-green: #3c5e3ddb;
    --warm-ochre: #C29F0F;
    --terracotta: #cb6d51c9;
    --deep-tech-blue: #2A5A9C;
    --mid-tone-sky-blue: #5998C5;
    --light-teal-aqua: #87CEBB;

    /* Neutral Colors */
    --deep-charcoal-grey: #0a0a0a;
    --off-white: #F0F0F0;
    --mid-grey: #A0A0A0;
    --light-grey: #E5E5E5;

    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #C29F0F 0%, #DA70D6 50%, #00BFFF 100%);
    --gradient-secondary: linear-gradient(135deg, #2A5A9C 0%, #5998C5 100%);
    --gradient-accent: linear-gradient(135deg, #8A2BE2 0%, #DA70D6 100%);

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Font display swap for better CLS */
@font-face {
  font-family: 'Poppins Fallback';
  font-display: swap;
  src: local('Arial'), local('Helvetica');
  ascent-override: 105%;
  descent-override: 35%;
  line-gap-override: 0%;
  size-adjust: 95%;
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */

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

body, html {
    font-family: 'Poppins', 'Poppins Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    color: var(--off-white);
    background-color: var(--deep-charcoal-grey);
    overflow-x: hidden;
    overflow-y: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body::-webkit-scrollbar {
    display: none;
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--light-grey);
}

/* Gradient Text Effect */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* ==========================================================================
   4. REUSABLE COMPONENTS
   ========================================================================== */

/* Background Image Utility - Converts CSS backgrounds to HTML images */
.background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
    pointer-events: none;
}

.model-background-image,
.service-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
    border-radius: inherit;
}

/* Section Labels */
.section-label {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
    backdrop-filter: blur(10px);
}

/* Glass Card Effect */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--deep-charcoal-grey);
    box-shadow: 0 4px 15px rgba(194, 159, 15, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(194, 159, 15, 0.6);
}

.btn-primary i {
    transition: transform var(--transition-fast);
}

.btn-primary:hover i {
    transform: translateX(5px);
}

.btn-secondary {
    background: transparent;
    color: var(--off-white);
    border: 2px solid var(--off-white);
}

.btn-secondary:hover {
    background: var(--off-white);
    color: var(--deep-charcoal-grey);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* Section Containers */
.fullscreen-section {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--spacing-lg) 5%;
}

/* ==========================================================================
   5. HEADER & NAVIGATION
   ========================================================================== */

header {
    width: 100%;
    position: relative;
    z-index: 100;
    animation: fadeInDown 1s ease-out;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 0;
    padding: 1rem 5%;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    height: 60px;
    width: 200px;
    max-width: 200px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--off-white);
}

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

.nav-menu a {
    color: var(--off-white);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--warm-ochre);
}

.cta-nav {
    background: var(--gradient-primary);
    color: var(--deep-charcoal-grey) !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: 50px;
}

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

.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(194, 159, 15, 0.4);
}

/* Mobile Menu */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    color: var(--off-white);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: right var(--transition-slow);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-left: 1px solid var(--glass-border);
}

.mobile-nav.is-open {
    right: 0;
}

.mobile-nav .close-menu {
    display: block;
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    background: none;
    border: none;
    color: var(--off-white);
    cursor: pointer;
}

.mobile-nav ul {
    list-style: none;
    padding: 0;
}

.mobile-nav ul li {
    margin: 2rem 0;
    text-align: center;
}

.mobile-nav ul li a {
    color: var(--off-white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.mobile-nav ul li a:hover {
    color: var(--warm-ochre);
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */

#hero {
    min-height: 100vh;
    justify-content: flex-start;
    padding: 0;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 1;
}

.hero-overlay.light {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.3) 100%);
}

.video-background-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.video-background-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: absolute;
    bottom: 8rem;
    left: 5%;
    z-index: 2;
    max-width: 700px;
    text-align: left;
    contain: layout;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
}

.hero-badge i {
    color: var(--warm-ochre);
}

.hero-content h1 {
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--light-grey);
    line-height: 1.6;
}

.hero-cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   7. STATS SECTION
   ========================================================================== */

.stats-section {
    padding: var(--spacing-xl) 5%;
    background: linear-gradient(180deg, var(--deep-charcoal-grey) 0%, #1a1a1a 100%);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    width: 100%;
    max-width: 1200px;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--warm-ochre);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--mid-grey);
    font-weight: 500;
}

/* ==========================================================================
   8. ABOUT SECTION
   ========================================================================== */

#about {
    padding: var(--spacing-xl) 5%;
}

.about-content {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 2;
}

.about-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.about-header h2 {
    max-width: 800px;
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--light-grey);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
}

.feature-item i {
    color: var(--warm-ochre);
    font-size: 1.25rem;
}

.about-team-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.team-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.team-card:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.team-card i {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.team-card h4 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.team-card p {
    color: var(--mid-grey);
    margin: 0;
}

/* ==========================================================================
   9. SERVICES SECTION
   ========================================================================== */

.services-section {
    padding: var(--spacing-xl) 5%;
    background: var(--deep-charcoal-grey);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-description {
    font-size: 1.125rem;
    color: var(--mid-grey);
    margin-top: var(--spacing-sm);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.service-card {
    position: relative;
    padding: var(--spacing-md);
    overflow: hidden;
    background-color: var(--glass-bg);
    border-radius: 15px;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: rgba(63, 61, 61, 0.5);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
    color: var(--deep-charcoal-grey);
    transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.service-card > p {
    color: var(--light-grey);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--mid-grey);
    font-size: 0.95rem;
}

.service-features i {
    color: var(--warm-ochre);
    font-size: 0.875rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--warm-ochre);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.service-link:hover {
    gap: 1rem;
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-link:hover i {
    transform: translateX(5px);
}



/* ==========================================================================
   10. DEMO SECTION
   ========================================================================== */

.demo-section {
    padding: var(--spacing-xl) 5%;
    background: linear-gradient(180deg, var(--deep-charcoal-grey) 0%, #1a1a1a 100%);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.demo-text h2 {
    margin-bottom: var(--spacing-md);
}

.demo-text p {
    font-size: 1.125rem;
    color: var(--light-grey);
    margin-bottom: var(--spacing-md);
}

.demo-features {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.demo-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    min-width: 120px;
}

.demo-feature i {
    font-size: 1.5rem;
    color: var(--warm-ochre);
}

.demo-feature span {
    font-size: 0.875rem;
    color: var(--mid-grey);
}

.model-container {
    width: 100%;
    height: 500px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    overflow: hidden;
    min-height: 500px;
    aspect-ratio: 16/9;
}

.model-container model-viewer {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   11. TESTIMONIALS SECTION
   ========================================================================== */

.testimonials-section {
    padding: var(--spacing-xl) 5%;
    background: var(--deep-charcoal-grey);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.testimonial-card {
    padding: var(--spacing-md);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--warm-ochre);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--light-grey);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--deep-charcoal-grey);
}

.author-info h4 {
    margin: 0;
    font-size: 1rem;
}

.author-info p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--mid-grey);
}

/* ==========================================================================
   12. CTA SECTION
   ========================================================================== */

.cta-section {
    padding: var(--spacing-xl) 5%;
    background: linear-gradient(135deg, #1a1a1a 0%, var(--deep-charcoal-grey) 100%);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--light-grey);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   13. FOOTER
   ========================================================================== */

footer {
    background: #0a0a0a;
    padding: var(--spacing-xl) 5% var(--spacing-md);
    border-top: 1px solid var(--glass-border);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto var(--spacing-lg);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: var(--spacing-sm);
}

.footer-logo img {
    height: 50px;
    width: 167px;
    max-width: 167px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--off-white);
}

.footer-tagline {
    color: var(--mid-grey);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--off-white);
    font-size: 1.125rem;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: var(--deep-charcoal-grey);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--off-white);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a,
.footer-column ul li span {
    color: var(--mid-grey);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--warm-ochre);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact i {
    color: var(--warm-ochre);
    width: 20px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
    color: var(--mid-grey);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.footer-legal a {
    color: var(--mid-grey);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--warm-ochre);
}

/* ==========================================================================
   14. ANIMATIONS
   ========================================================================== */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   15. RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .about-grid,
    .demo-content {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .footer-main {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    .nav-menu {
        display: none;
    }

    .hamburger-menu {
        display: block;
    }

    .hero-content {
        bottom: 4rem;
        left: 5%;
        right: 5%;
        max-width: none;
    }

    .hero-cta-buttons {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .demo-text,
    .model-container {
        width: 100%;
    }

    .model-container {
        height: 400px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }

    .demo-features {
        justify-content: center;
    }
}