:root {
    --primary: #0052cc;
    --secondary: #2ecc71;
    --dark: #2c3e50;
    --light: #f8f9fa;
    --text: #333;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
    color: var(--text);
    background-color: var(--white);
}

/* Header & Nav */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: auto;
}

.logo img {
    height: 50px;
}

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

.nav-links li a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    margin-left: 2rem;
    transition: color 0.3s;
}

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

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,82,204,0.8), rgba(0,82,204,0.8)), url('https://images.unsplash.com/photo-1449965408869-eaa3f722e40d?auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    color: var(--white);
    padding: 100px 5%;
    text-align: center;
}

.hero h1 { font-size: 3rem; margin-bottom: 1rem; }

.cta-btn {
    display: inline-block;
    background: var(--secondary);
    color: var(--white);
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.2rem;
    margin-top: 20px;
    transition: transform 0.3s;
    border: none;
    cursor: pointer;
}

.cta-btn:hover { transform: scale(1.05); }

/* Grid Layout */
.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 5%;
}

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

.card {
    padding: 2rem;
    border-radius: 10px;
    background: var(--light);
    text-align: center;
    transition: 0.3s;
}

.card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 40px 5% 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: auto;
}

.disclaimer {
    font-size: 0.8rem;
    color: #bdc3c7;
    margin-top: 20px;
    border-top: 1px solid #444;
    padding-top: 20px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 70px;
        left: 0;
        background: var(--white);
        padding: 20px;
    }
    .nav-links.active { display: flex; }
    .nav-links li { margin: 10px 0; }
    .hamburger { display: block; }
}