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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #172033;
    background: #ffffff;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1150px;
    margin: auto;
}

.header {
    background: #102a43;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    min-height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    color: white;
    text-decoration: none;
    font-size: 30px;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo span {
    color: #d9a441;
    font-size: 17px;
}

nav {
    display: flex;
    gap: 28px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 600;
}

nav a:hover {
    color: #d9a441;
}

.hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    background:
        linear-gradient(
            rgba(16,42,67,.92),
            rgba(16,42,67,.85)
        ),
        url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1800&q=80")
        center/cover;
}

.hero-content {
    color: white;
    max-width: 800px;
}

.tag,
.section-tag {
    color: #d9a441;
    font-weight: bold;
    letter-spacing: 3px;
    font-size: 13px;
    margin-bottom: 15px;
}

.hero h1 {
    font-size: clamp(42px, 6vw, 70px);
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero p {
    color: #e6edf4;
    font-size: 20px;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    background: #d9a441;
    color: #102a43;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    cursor: pointer;
}

.btn:hover {
    opacity: .9;
}

.section {
    padding: 90px 0;
}

.section-light {
    background: #f4f7fa;
}

h2 {
    color: #102a43;
    font-size: 40px;
    margin-bottom: 25px;
}

.intro {
    max-width: 850px;
    color: #667085;
    font-size: 18px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,.07);
}

.icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.card h3 {
    color: #102a43;
    margin-bottom: 12px;
}

.card p {
    color: #667085;
}

.cta {
    padding: 75px 0;
    text-align: center;
    background: #102a43;
    color: white;
}

.cta h2 {
    color: white;
}

.cta p {
    margin-bottom: 25px;
}

.btn-light {
    background: white;
    color: #102a43;
}

.formulario {
    max-width: 850px;
    margin-top: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.campo {
    margin-bottom: 20px;
}

.campo label {
    display: block;
    margin-bottom: 7px;
    font-weight: bold;
}

.campo input,
.campo select,
.campo textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #d0d5dd;
    border-radius: 7px;
    font-size: 16px;
    font-family: inherit;
}

.campo textarea {
    resize: vertical;
}

footer {
    background: #081c2d;
    color: white;
    text-align: center;
    padding: 45px 0;
}

footer p {
    color: #b9c3cf;
    margin-top: 10px;
}

.copyright {
    font-size: 13px;
}

@media (max-width: 900px) {

    .cards {
        grid-template-columns: 1fr 1fr;
    }

}

@media (max-width: 650px) {

    .nav {
        flex-direction: column;
        padding: 18px 0;
        gap: 15px;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero {
        min-height: 520px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero p {
        font-size: 17px;
    }

    .section {
        padding: 65px 0;
    }

    h2 {
        font-size: 32px;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

}