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



body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: url("imagenes/fondoinicio.png");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;

    color: aliceblue;
    font-family: Arial, Helvetica, sans-serif;
}
/* =====================================
   CABECERA
===================================== */

.cabecera {
    min-height: 75px;
    background: #0d0d0d;
    border-bottom: 2px solid #a00000;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    padding: 15px 7%;
}

.logo {
    color: white;
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 2px;
    text-decoration: none;
    white-space: nowrap;
}

.logo span {
    color: #c00000;
}

.navegacion-principal {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.navegacion-principal a {
    color: #ddd;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    transition: color 0.3s;
}

.navegacion-principal a:hover,
.navegacion-principal .activo {
    color: #d00000;
}
/* =====================================
   FOOTER
===================================== */

.pie-pagina {
    width: 100%;
    margin-top: auto;

    padding: 35px 20px;

    text-align: center;

    background: #030303;
    border-top: 2px solid #a00000;
}

.pie-pagina p {
    margin-top: 12px;

    color: #777;
    font-size: 13px;
    line-height: 1.6;
}