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

html {
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation - unified header/dropdown (improved visuals + accessibility) */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    box-shadow: 0 6px 20px rgba(16,24,40,0.06);
    border-bottom: 1px solid rgba(16,24,40,0.04);
    z-index: 1000;
    padding: 0.6rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo h2 {
    color: #0f172a;
    color: #1e88e5; /* brand blue */
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 0.3px;
}

.logo img {
    height: 45px;
    width: auto;
}

.footer-section img {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.25rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: #0f172a;
    font-weight: 600;
    padding: 0.45rem 0.6rem;
    border-radius: 8px;
    transition: background-color 180ms ease, color 180ms ease, transform 120ms ease;
}

.nav-menu a:hover,
.nav-menu a:focus {
    background: linear-gradient(90deg,#06b6d4,#3b82f6);
    color: #fff;
    transform: translateY(-1px);
    outline: none;
    box-shadow: 0 8px 24px rgba(59,130,246,0.12);
}

.nav-menu a.active {
    background: linear-gradient(90deg,#06b6d4,#3b82f6);
    color: #fff;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown > a::after {
    content: '▾';
    display: inline-block;
    margin-left: 8px;
    font-size: 0.72rem;
    transition: transform 220ms ease;
    vertical-align: middle;
    color: rgba(15,23,42,0.7);
}

.dropdown:focus-within > a::after,
.dropdown:hover > a::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #fff;
    min-width: 220px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(2,6,23,0.08);
    padding: 6px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px) scale(0.98);
    transform-origin: top left;
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
    z-index: 1100;
    list-style: none;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-menu li { margin: 0; }

.dropdown-menu a {
    display: block;
    padding: 0.6rem 1rem;
    color: #0f172a;
    text-decoration: none;
    transition: background 120ms ease, color 120ms ease, border-left-color 120ms ease;
    border-left: 4px solid transparent;
}

.dropdown-menu a:hover,
.dropdown-menu a:focus {
    background: linear-gradient(90deg, rgba(6,182,212,0.06), rgba(59,130,246,0.06));
    color: #0369a1;
    border-left-color: #06b6d4;
    outline: none;
}

/* Focus outlines for keyboard users */
.nav-menu a:focus,
.dropdown-menu a:focus {
    box-shadow: 0 0 0 4px rgba(59,130,246,0.12);
}

/* Mobile toggle button */
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    width: 24px;
    height: 3px;
    background: #1e293b;
    position: relative;
    transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 3px;
    background: #1e293b;
    transition: all 0.3s ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Responsive tweaks */
@media (max-width: 920px) {
    .nav-menu { gap: 0.6rem; }
    .logo h2 { font-size: 1.05rem; }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 12px 16px;
        text-align: left;
    }
    
    .dropdown-menu {
        position: static;
        background: rgba(248, 250, 252, 0.9);
        box-shadow: none;
        border-radius: 8px;
        margin-top: 8px;
        transform: none;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease;
    }
    
    .dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 300px;
    }
    
    .dropdown > a::after {
        float: right;
    }
}

/* Extra small screen tweaks (keep header responsive without changing layout elsewhere) */
@media (max-width: 520px) {
    .nav-container {
        padding: 0 12px;
        gap: 0.6rem;
    }

    /* slightly smaller logo to save horizontal space */
    .logo img {
        height: 38px;
    }

    /* ensure the mobile menu doesn't overflow the viewport and becomes scrollable */
    .nav-menu {
        top: 64px; /* align with the (smaller) navbar height on very small screens */
        padding: 14px;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* slightly reduce touch target padding so items fit comfortably */
    .nav-menu a {
        padding: 10px 12px;
        font-size: 0.95rem;
    }

    /* arrow for dropdown should float to the right on mobile */
    .dropdown > a::after {
        margin-left: 0;
        float: right;
    }

    /* ensure toggle button remains tappable */
    .nav-toggle {
        width: 44px;
        height: 44px;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding: 100px 0 60px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

@media (max-width: 992px) {
    .hero {
        padding: 120px 0 60px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 40px;
    }
}

.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.carousel-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-image.active {
    opacity: 1;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(83, 184, 228, 0.2);
    z-index: 2;
}

@keyframes horizontalSlide {
    0% { transform: translateX(0); }
    20% { transform: translateX(-20%); }
    40% { transform: translateX(-40%); }
    60% { transform: translateX(-60%); }
    80% { transform: translateX(-80%); }
    100% { transform: translateX(0); }
}

.bubble-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
}

.bubble {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.bubble:nth-child(1) {
    width: 80px;
    height: 80px;
    left: 10%;
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    width: 60px;
    height: 60px;
    left: 20%;
    animation-delay: 2s;
}

.bubble:nth-child(3) {
    width: 100px;
    height: 100px;
    left: 70%;
    animation-delay: 4s;
}

.bubble:nth-child(4) {
    width: 40px;
    height: 40px;
    left: 80%;
    animation-delay: 1s;
}

.bubble:nth-child(5) {
    width: 120px;
    height: 120px;
    left: 50%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

@media (max-width: 768px) {
    .hero-content {
        width: 95%;
        padding: 1rem;
    }
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 2rem auto 0;
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        text-align: center;
        padding: 0.8rem 1.5rem;
    }
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: #10b981;
    color: white;
}

.btn-primary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
}

.btn-secondary {
    background: rgb(23, 44, 159);
    color: rgb(218, 220, 229);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* About Section */
.about {
    padding: 100px 0;
    background: linear-gradient(rgba(248, 250, 252, 0.9), rgba(226, 232, 240, 0.9)), url('images/background3.jpg');
    background-size: cover;
    background-position: center;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-text h2 {
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 1rem;
}

/* Industries Section */
.industries {
    padding: 100px 0;
    background: linear-gradient(rgba(219, 234, 254, 0.9), rgba(255, 255, 255, 0.9)), url('images/background3.jpg');
    background-size: cover;
    background-position: center;
}

.industries h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 3rem;
}

.industry-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .industry-cards {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 2rem auto 0;
    }
}

.industry-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.industry-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.2);
}

.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.5s;
}

.industry-card:hover::before {
    left: 100%;
}

.card-image {
    margin-bottom: 1.5rem;
    border-radius: 15px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.industry-card h3 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.industry-card p {
    color: #64748b;
    margin-bottom: 1rem;
}

.card-cta {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
    margin-top: auto;
}

.card-cta:hover {
    color: #1d4ed8;
}

/* Gases Section */
.gases {
    padding: 100px 0;
    background: linear-gradient(rgba(248, 250, 252, 0.9), rgba(248, 250, 252, 0.9)), url('images/hospital4.jpg');
    background-size: cover;
    background-position: center;
}

.gases h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.gas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .gas-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 2rem auto 0;
    }
}

.gas-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.gas-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.gas-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.gas-card:hover::after {
    transform: scaleX(1);
}

.gas-image {
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
}

.gas-image img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.gas-card h3 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.gas-card p {
    color: #64748b;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.gas-specs {
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.gas-specs p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.gas-cta {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: auto;
}

/* Why Choose Us */
.why-choose {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: white;
}

.why-choose h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.feature:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feature p {
    color: #cbd5e1;
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    background: linear-gradient(rgba(219, 234, 254, 0.9), rgba(240, 249, 255, 0.9)), url('images/background4.jpg');
    background-size: cover;
    background-position: center;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 3rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.video-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.video-item video {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 10s ease-in-out infinite;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn-cta {
    padding: 15px 30px;
    background: #10b981;
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: #059669;
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(16, 185, 129, 0.4);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: #f8fafc;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.contact-item .icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.contact-item h3 {
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: #64748b;
}

.contact-map {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 100%;
}

.contact-map iframe {
    width: 100%;
    max-width: 100%;
    height: 300px;
    border: 0;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 50px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #2563eb);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-section h3 {
    color: #3b82f6;
    margin-bottom: 1rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #3b82f6;
}

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

.social-links a {
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 25px;
    transition: all 0.3s;
}

.social-links a:hover {
    background: #3b82f6;
    transform: translateY(-2px);
}

.quote-contact {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quote-contact p {
    color: #cbd5e1;
    margin: 0;
}

.whatsapp-btn {
    background: #25d366;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    text-align: center;
}

.whatsapp-btn:hover {
    background: #128c7e;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

.email-btn {
    background: #ea4335;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    text-align: center;
    margin-top: 0.5rem;
    display: block;
}

.email-btn:hover {
    background: #d33b2c;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(234, 67, 53, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-map {
        width: 100%;
        margin: 0;
    }
    
    .contact-map iframe {
        width: 100%;
        height: 250px;
    }
    
    .industry-cards,
    .gas-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    /*.video-grid {*/
    /*    grid-template-columns: 1fr;*/
    /*    gap: 15px;*/
    /*    padding: 0 15px;*/
    /*}*/

    .video-item video {
        height: auto;
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact-content {
        gap: 1.5rem;
    }
    
    .contact-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .contact-map {
        width: 100%;
        max-width: 100%;
        margin: 0;
    }
    
    .contact-map iframe {
        width: 100%;
        max-width: 100%;
        height: 200px;
        border: 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
}