* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", Arial, sans-serif;
}

body {
    background-color: #f2f4f7;
    color: #333;
}

/* ===== ENCABEZADO ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 50px;
    background-color: #0b2a45;
    border-bottom: 4px solid #c9a227;
}

.logo {
    width: 90px;
}

.header-texto {
    text-align: center;
    color: white;
    max-width: 900px;
}

.header-texto h1 {
    font-size: 24px;
    margin-bottom: 6px;
}

.header-texto h2 {
    font-size: 16px;
    font-weight: normal;
    margin-bottom: 4px;
}

.header-texto h3 {
    font-size: 15px;
    font-weight: normal;
}

/* ===== CONTENIDO ===== */
.contenedor {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
}

.titulo-seccion {
    text-align: center;
    font-size: 26px;
    color: #0b2a45;
    margin-bottom: 40px;
}

/* FILA CENTRAL */
.fila-centro {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

/* GRID */
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* TARJETAS */
.card {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    text-align: center;
    box-shadow: 0 6px 14px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-top: 6px solid #0b2a45;
}

.card h3 {
    margin: 10px 0 6px;
    color: #0b2a45;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 22px rgba(0,0,0,0.2);
    border-top: 6px solid #c9a227;
}

/* TARJETA PRINCIPAL */
.card-principal {
    width: 360px;
    border-top: 8px solid #c9a227;
}

/* ===== IMÁGENES EN TARJETAS ===== */
.card-img {
    width: 100%;
    height: 150px;
    overflow: hidden;
    border-radius: 8px;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== PIE DE PÁGINA ===== */
.footer {
    background-color: #0b2a45;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 60px;
}

.footer p {
    margin: 4px 0;
    font-size: 14px;
}