/* Variables de color */
:root {
    --primary: #007bff;
    --dark: #333;
    --light: #fff;
}

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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--dark);
    color: var(--light);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.container {
    width: 90%;
    margin: auto;
}

.logo {
    font-size: 1.8rem;
}

.nav a {
    color: var(--light);
    margin-left: 20px;
    text-decoration: none;
    font-weight: bold;
}

/* Hero */
.hero {
    background: url('https://via.placeholder.com/1920x600') center/cover no-repeat;
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--light);
    padding: 20px;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.hero button {
    background: var(--primary);
    border: none;
    color: var(--light);
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 5px;
}

/* Features */
.features {
    padding: 40px 0;
    background: #f7f7f7;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.card {
    background: var(--light);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    text-align: center;
}

/* Benefits */
.benefits {
    padding: 30px 0;
    text-align: center;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--light);
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
}