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

/* BASE */
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #f2f4f8;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

/* HEADER */
header {
    background: linear-gradient(90deg, #0a1f44, #122f6a);
    color: white;
    padding: 20px 0;
}

header h1 {
    font-size: 26px;
    font-weight: 700;
}

nav {
    margin-top: 10px;
}

nav a {
    color: #fff;
    margin-right: 20px;
    text-decoration: none;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

/* MAIN */
main {
    background: white;
    padding: 40px;
    margin-top: -20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

/* HERO */
.hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero h2 {
    font-size: 32px;
    color: #0a1f44;
}

.hero p {
    font-size: 18px;
    margin-top: 10px;
}

/* BUTTON */
.btn {
    display: inline-block;
    margin-top: 20px;
    background: #0a1f44;
    color: white;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
}

.btn:hover {
    background: #122f6a;
}

/* CARDS */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: #f9fafc;
    border-radius: 8px;
    padding: 25px;
    border-left: 5px solid #0a1f44;
}

.card h3 {
    margin-bottom: 10px;
    color: #0a1f44;
}

/* LISTAS */
ul {
    margin-top: 10px;
    padding-left: 20px;
}

/* FOOTER */
footer {
    background: #0a1f44;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 30px;
    font-size: 14px;
}

/* WHATSAPP */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    line-height: 60px;
    box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    text-decoration: none;
    z-index: 999;
}

.whatsapp-float:hover {
    background-color: #1ebc5a;
}

.whatsapp-float i {
    font-size: 32px;
}

/* RESPONSIVO */
@media (max-width: 768px) {
    main {
        padding: 25px;
    }

    header h1 {
        font-size: 22px;
    }

    .hero h2 {
        font-size: 26px;
    }
}