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

body {
    min-height: 100vh;
    background: radial-gradient(circle at top, #1f2f4a, #0e1a2f 70%);
    font-family: "Georgia", "Times New Roman", serif;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
}

.contenedor {
    width: 100%;
    display: flex;
    justify-content: center;
}

.tarjeta {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.18);
    backdrop-filter: blur(6px);

    padding: 42px 56px;
    width: 360px;
    text-align: center;

    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}

.logo {
    font-size: 42px;
    letter-spacing: 0.3em;
    margin-bottom: 24px;
}

h1 {
    font-size: 22px;
    margin-bottom: 6px;
}

h2 {
    font-size: 13px;
    letter-spacing: 0.25em;
    opacity: 0.85;
    margin-bottom: 32px;
}

/* =========================
   WHATSAPP
   ========================= */
.contacto a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

/* ICONO */
.icon-whatsapp {
    width: 18px;
    height: 18px;
    fill: rgba(255,255,255,0.85);
    flex-shrink: 0;
}

/* TELÉFONO */
.telefono-texto {
    font-size: 14px;
    letter-spacing: 0.15em;
    color: #ffffff;

    background: rgba(255,255,255,0.18);
    padding: 6px 14px;
    border-radius: 6px;
}

.contacto a:hover .telefono-texto {
    background: rgba(255,255,255,0.28);
}

.contacto a:hover .icon-whatsapp {
    fill: #ffffff;
}

/* =========================
   LINK CONTACTO (FORMULARIO)
   ========================= */
.contacto-secundario {
    margin-top: 18px;
}

.link-contacto {
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.75);
    transition: color 0.3s ease;
}

.link-contacto:hover {
    color: #ffffff;
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 480px) {
    .tarjeta {
        width: 90%;
        padding: 32px 24px;
    }
}