:root {
    --primary-color: #0056b3;
    --secondary-color: #00a8e8;
    --text-color: #333333;
    --bg-color: #ffffff;
    --light-bg: #f4f7f6;
    --white: #ffffff;
    --dark-overlay: rgba(0, 0, 0, 0.6);
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list a {
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-list a:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background-image: url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 80px; /* Offset for fixed header */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-overlay);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

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

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

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

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

/* Services Section */
.services {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    object-fit: contain;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* About Section */
.about {
    padding: 80px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
}

.contact .section-title {
    color: var(--white);
}

.contact-intro {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.contact-link {
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 2px solid rgba(255,255,255,0.5);
    padding-bottom: 5px;
}

.contact-link:hover {
    border-bottom-color: var(--white);
}

/* Footer */
.footer {
    background-color: #222;
    color: #aaa;
    padding: 30px 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .nav {
        display: none; /* Simple hide for now, JS will toggle */
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }

    .nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
    }

    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-menu-btn span {
        display: block;
        width: 25px;
        height: 3px;
        background-color: var(--text-color);
        margin: 5px 0;
    }
}