:root {
    --primary: #1a365d; /* Deep Navy */
    --secondary: #2b6cb0; /* Steel Blue */
    --accent: #ed8936; /* Safety Orange */
    --bg-light: #f7fafc;
    --text-dark: #2d3748;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

nav {
    background: var(--white);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.hero {
    height: 80vh;
    background: linear-gradient(rgba(26, 54, 93, 0.7), rgba(26, 54, 93, 0.7)), url('/static/images/hero.png');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
    padding: 0 1rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInDown 1s ease-out;
}

.hero p {
    font-size: 1.25rem;
    max-width: 800px;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--secondary);
    color: var(--white);
}

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

.section {
    padding: 5rem 10%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 3rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border-top: 5px solid var(--secondary);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-item {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.contact-item span {
    font-weight: bold;
    margin-right: 1rem;
    color: var(--secondary);
}

footer {
    background: var(--primary);
    color: var(--white);
    text-align: center;
    padding: 2rem;
    margin-top: 5rem;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .section { padding: 3rem 5%; }
}