:root {
    --primary-color: #2c3e50;
    --secondary-color: #c0392b;
    --light-bg: #ecf0f1;
    --text-color: #333;
}

* {
    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-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center {
    text-align: center;
}

.py-2 {
    padding: 3rem 0;
}

.bg-light {
    background: var(--light-bg);
}

.bg-dark {
    background: var(--primary-color);
    color: #fff;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)), url('https://images.unsplash.com/photo-1589829085413-56de8ae18c73?auto=format&fit=crop&q=80') center/cover;
    height: 60vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: #fff;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 30px;
    background: var(--secondary-color);
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background: #e74c3c;
}

/* Grid layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    border-top: 4px solid var(--primary-color);
}

.card h4 {
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 1.2rem;
}