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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: #00047a;
    background: #ffffff;
    line-height: 1.6;
}

/* CONTACT BAR */
.contact-bar {
    background: #0F172A;
    color: white;
    display: flex;
    justify-content: space-between;
    padding: 12px 8%;
    font-size: 14px;
    flex-wrap: wrap;
}

.contact-bar a {
    color: white !important;
    text-decoration: none;
}

.contact-bar a:hover {
    color: #efffcd;
}

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

.iso-logo {
    width: 85px;
    height: 85px;
    object-fit: contain;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: #2563EB;
}

.top-whatsapp {
    width: 28px;
    height: 28px;
    object-fit: contain;
    vertical-align: middle;
}

/* NAVBAR */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    background: white;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 8%;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: #0F172A;
    font-weight: 600;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #2563EB;
}

.nav-links a.active {
    color: #2563EB;
    font-weight: 700;
}

.tagline {
    font-size: 11px;
    font-family: 'Inter', sans-serif;
    color: #475569;
    letter-spacing: 1px;
    margin-top: -8px;
}

/* HERO */
.hero {
    position: relative;
    height: 90vh;
    background-image: url("assets/hero.png");
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
}

.hero-content {
    position: relative;
    color: white;
    text-align: center;
    width: 90%;
    max-width: 1000px;
    z-index: 2;
}

.hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.primary-btn,
.secondary-btn {
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
}

.primary-btn {
    background: #2563EB;
    color: white;
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37,99,235,0.35);
}

.secondary-btn {
    border: 2px solid white;
    color: white;
}

.secondary-btn:hover {
    background: white;
    color: #0F172A;
}
/* SECTION */
.section {
    padding: 90px 8%;
}

.section h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 42px;
    margin-bottom: 40px;
    color: #ffffff;
}

/* CERTIFICATIONS */
.certifications {
    background: #003273;
    padding: 100px 8%;
}

.certifications h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 42px;
    margin-bottom: 50px;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    align-items: start;
}

.certificate-card {
    background: white;
    padding: 20px;
    border-radius: 18px;
    box-shadow: 0 8px 28px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 35px rgba(0,0,0,0.14);
}

.certificate-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

/* PRODUCTS */
.products {
    background: #ffffff;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* fixed horizontal layout */
    gap: 32px;
    align-items: stretch;
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card {
    background: #b3d1ee;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 6px 24px rgba(0,0,0,0.08);
    transition: 0.35s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 14px 40px rgba(0,0,0,0.14);
}

.image-wrapper {
    height: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: white;
}

.image-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.card-content {
    padding: 28px;
    flex-grow: 1;
}

.card h3 {
    margin-bottom: 16px;
    font-size: 24px;
}

.card p {
    color: #475569;
    margin-bottom: 12px;
}

/* SERVICES */
.services {
    position: relative;
    background-image: url("assets/service.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 90px 8%;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.service-box {
    background: #ffffff;
    color: rgb(0, 14, 169);
    padding: 40px;
    border-radius: 14px;
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    transition: 0.3s;
}

.service-box:hover {
    transform: translateY(-6px);
}

/* FOOTER */
footer {
    background: #0F172A;
    color: white;
    padding: 60px 8% 20px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 80px;
    margin-bottom: 40px;
}

.footer-left,
.footer-right {
    flex: 1;
}

.footer-left h3,
.footer-right h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #93C5FD;
}

.footer-left p,
.footer-right p {
    margin-bottom: 14px;
    line-height: 1.7;
}

footer a {
    color: #ffffff;
    text-decoration: none;
    transition: 0.3s;
}

footer a:hover {
    color: #93C5FD;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 20px;
    text-align: center;
    color: #cbd5e1;
}

/* MOBILE */
@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 42px;
    }

    .hero p {
        font-size: 18px;
    }

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

@media (max-width: 768px) {
    .contact-bar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .navbar {
        flex-direction: column;
        gap: 20px;
    }

    .nav-links {
        gap: 18px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 34px;
    }

    .section h2 {
        font-size: 34px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

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