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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #222;
}

/* BARRA SUPERIOR */

header {
    background:  #3f4f5f;
    color: white;
    padding: 18px 6%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 3px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 25px;
    font-size: 15px;
}

nav a:hover {
    opacity: 0.7;
}

/* PORTADA */

.hero {
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;

    background:
    linear-gradient(
        rgba(55, 75, 90, 0.82),
        rgba(90, 170, 200, 0.82)
    ),
    linear-gradient(135deg, #526574, #73c6df);
    
    color: white;
}

.hero-contenido {
    max-width: 800px;
}

.hero h1 {
    font-size: 58px;
    letter-spacing: 8px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 21px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.boton {
    display: inline-block;
    padding: 14px 28px;
    margin: 5px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.2s;
}

.boton-principal {
    background: white;
    color: #111;
}

.boton-secundario {
    border: 1px solid white;
    color: white;
}

.boton:hover {
    transform: translateY(-2px);
}

/* SECCIONES */

.seccion {
    padding: 70px 7%;
    text-align: center;
}

.seccion h2 {
    font-size: 34px;
    margin-bottom: 15px;
}

.seccion-intro {
    max-width: 700px;
    margin: auto;
    color: #666;
    line-height: 1.6;
}

/* TARJETAS */

.tarjetas {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.tarjeta {
    background: white;
    padding: 35px 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.tarjeta h3 {
    margin-bottom: 12px;
}

.tarjeta p {
    color: #666;
    line-height: 1.5;
}

/* IDENTIFICACIÓN MÉDICA */

.medico {
    background: #3099C9;
    color: white;
}

.medico p {
    color: #ccc;
}

/* PIE */

footer {
    background: #34434f;
    color: #aaa;
    text-align: center;
    padding: 30px 20px;
    font-size: 14px;
}

/* CELULARES */

@media (max-width: 700px) {

    header {
        flex-direction: column;
        gap: 15px;
    }

    nav a {
        margin: 0 7px;
        font-size: 13px;
    }

    .hero h1 {
        font-size: 40px;
        letter-spacing: 5px;
    }

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

    .seccion {
        padding: 50px 20px;
    }
.logo img {
    height: 45px;
    width: auto;
    display: block;
.boton {
    display: inline-block;
    padding: 10px 18px;
    margin: 4px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
}

.boton-principal {
    background-color: #526b7a;
    color: white !important;
}

.boton-secundario {
    background-color: #d9e3e8;
    color: #263746 !important;
    border: 1px solid #9aaeb9;
}

.boton-secundario:hover {
    background-color: #c5d4dc;
    color: #1d2b35 !important;
}
}