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

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #222;
    background: #f5f5f5;
}

:root {
    --primary: #0b2e4f;
    --accent: #1e73be;
    --light: #ffffff;
    --dark: #111111;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

header {
    background: var(--primary);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.3rem;
}

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

.hero {
    position: relative;
    background: url('../images/hero.jpg') center/cover no-repeat;
    min-height: 80vh;
    display: flex;
    align-items: center;
    color: white;
}

.overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.9rem 1.5rem;
    text-decoration: none;
    border-radius: 4px;
    transition: 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.about-preview {
    padding: 4rem 0;
    background: white;
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.split-layout img {
    width: 100%;
    border-radius: 8px;
}

.page-header {
    background: var(--primary);
    color: white;
    padding: 4rem 0;
}

.page-content {
    padding: 4rem 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

footer {
    background: var(--dark);
    color: white;
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

@media (max-width: 768px) {

    .menu-btn {
        display: block;
    }

    .nav {
        position: absolute;
        top: 70px;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        width: 220px;
        padding: 1rem;
        display: none;
    }

    .nav.active {
        display: flex;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .split-layout {
        grid-template-columns: 1fr;
    }
}