/* Variables for easy branding updates */
:root {
    --primary: #004a99;
    --dark: #333;
    --light: #f4f4f4;
    --white: #ffffff;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

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

.container {
    max-width: 1100px;
    margin: auto;
    padding: 0 2rem;
    overflow: hidden;
}

/* Header & Nav */
header {
    background: var(--white);
    padding: 1.5rem 0;
    border-bottom: 1px solid #ddd;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links li {
    padding-left: 20px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: bold;
}

/* Hero Section */
.hero {
    background: var(--primary);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    background: var(--white);
    color: var(--primary);
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1rem;
    font-weight: bold;
}

/* Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 3rem 0;
}

.card {
    background: var(--light);
    padding: 1.5rem;
    border-radius: 8px;
    border-top: 5px solid var(--primary);
}

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