/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eaeaea;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: #0a3d62;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #1a1a2e;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #0a3d62;
}

.btn-nav {
    background: #0a3d62;
    color: #fff !important;
    padding: 10px 24px;
    border-radius: 6px;
    transition: background 0.2s;
}

.btn-nav:hover {
    background: #0d4f7c;
}

/* Hero */
.hero {
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 180px 0 120px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 720px;
    margin: 0 auto 40px;
    opacity: 0.95;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background: #f5b041;
    color: #0a3d62;
}

.btn-primary:hover {
    background: #f7c566;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* Sections */
.section {
    padding: 96px 0;
}

.section-alt {
    background: #f8fafc;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 56px;
    color: #0a3d62;
    letter-spacing: -0.5px;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: #4a4a5a;
}

.about-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 12px 32px rgba(10, 61, 98, 0.1);
}

/* Products */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.product-card {
    background: #fff;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}

.product-card:hover {
    box-shadow: 0 12px 32px rgba(10, 61, 98, 0.1);
    transform: translateY(-4px);
    border-color: #0a3d62;
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: #0a3d62;
}

.product-card p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-item {
    text-align: center;
    padding: 40px 24px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: #0a3d62;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 20px;
}

.feature-item h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: #0a3d62;
}

.feature-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* Certificates */
.cert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.cert-grid img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.cert-text p {
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: #4a4a5a;
}

.cert-badge {
    width: auto !important;
    max-width: 240px;
    margin-top: 24px;
}

/* Footer */
.footer {
    background: #0a3d62;
    color: #fff;
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    padding-bottom: 56px;
}

.footer-info h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.footer-info p {
    opacity: 0.8;
    font-size: 1.05rem;
}

.footer-contact p {
    margin-bottom: 12px;
    font-size: 1rem;
    opacity: 0.9;
}

.footer-contact strong {
    color: #f5b041;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .about-grid,
    .footer-content,
    .cert-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-links a {
        font-size: 0.85rem;
    }

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 1.7rem;
    }
}