:root {
    --primary: #2c3e50;
    --accent: #3498db;
    --light: #f4f7f6;
    --text: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    margin: 0;
    background-color: #fff;
}

.container {
    width: 85%;
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
}

/* Navigation */
header {
    background: #fff;
    padding: 1.5rem 0;
    border-bottom: 1px solid #eee;
}

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

nav ul {
    display: flex;
    list-style: none;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary);
    padding: 0 15px;
    font-weight: 500;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--primary);
}

.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding-bottom: 50px;
}

.card {
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: 0.3s;
}

.card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

footer {
    text-align: center;
    padding: 40px 0;
    background: var(--light);
    color: #777;
    font-size: 0.9rem;
}