/* ===============================================
    ESTILOS COMUNES A TODAS LAS PÁGINAS
   =============================================== */

/* ==== BASE GENERAL ==== */

body {
    margin: 0;
    font-family: "Segoe UI", sans-serif;
    background: linear-gradient(135deg, #2a5665, #85a3ba, #af7d55);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Contenedor principal centrado con ancho máximo */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

/* Título de la página */
.titulo {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem; /*0.5rem;*/
}


/* ==== TARJETA EXPLICATIVA ==== */

.card {
    text-align: left;
    background-color: #fefaf6;
    color: #1d3d4a;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 5px 5px 0 #ddd;
    margin-bottom: 1.5rem;
    overflow-y: auto;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    /*max-height: 30vh;*/
}

.card::-webkit-scrollbar {
    width: 6px;
}
.card::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}


/* ==== BOTONES GENERALES ==== */

.botones {
    margin-top: 1rem;
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn,
button.btn {
    display: inline-block;
    text-decoration: none;
    font-weight: normal;
    font-size: 0.95rem;
    padding: 1rem 0;
    width: 150px;   /* Ancho uniforme fijo */
    text-align: center;
    border-radius: 8px;
    border: none;
    color: #fff;
    box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    line-height: 1.2;
}

.btn-azul { background-color: #5a94c0; }
.btn-azul:hover { background-color: #4484b6; }

.btn-verde { background-color: #2a5665; }
.btn-verde:hover { background-color: #2d6a5f; }

.btn-naranja { background-color: #e6a33d; }
.btn-naranja:hover { background-color: #d38d1f; }

.btn-verde-oscuro { background-color: #2a5665; }
.btn-verde-oscuro:hover { background-color: #1d3d4a; }


/* ==== ELEMENTOS VARIOS ==== */

.enlace-youtube {
    margin-top: 1rem;
    text-align: center;
    color: #fff;
    font-size: 1rem;
}

.enlace-youtube a {
    color: #fff;
    text-decoration: underline;
}
.enlace-youtube a:hover {
    color: #0919f3;
}

.error-box {
    background-color: #fdecea;
    color: #b30000;
    border: 1px solid #f5c6cb;
    padding: 12px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    box-shadow: 0px 0px 5px rgba(255, 0, 0, 0.2);
    max-width: 600px;
    margin: 0 auto;
}

.error-contenedor {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}

.oculto { display: none; }
.visible { display: block; }

.input-error {
    border: 2px solid #b00020 !important;
    background-color: #fff2f2 !important;
}

input[readonly] {
    background-color: #fff !important;
    color: #000 !important;
    border: none;
    border-radius: 5px;
    font-size: 1.2rem;
    padding: 0.4rem;
    text-align: center;
}


/* ===============================================
        RESPONSIVE COMÚN
   =============================================== */

@media (max-width: 600px) {
    
    /* Asegura que padding y borders no desborden los elementos */
  * {
        box-sizing: border-box;
    }

    body {
        display: block;
        padding: 1rem;
        height: auto;
        background: linear-gradient(135deg, #2a5665, #85a3ba, #af7d55);
    }

    /* Contenedor principal con espaciado */
    .container {
        margin-top: 0.5rem;
        padding: 1rem;
    }

    /* Título adaptado al móvil */
    .titulo {
        font-size: 2rem;
        text-align: center;
        margin-bottom: 1rem;
        padding: 0 1rem;
    }

    .card {
        max-width: 340px;
        margin: 0 auto 1.5rem auto;
        padding: 1rem;
        font-size: 0.90rem;
        line-height: 1.5;
    }

    /* Estilo de scroll para navegadores WebKit */
    .card::-webkit-scrollbar {
        width: 6px;
    }

    .card::-webkit-scrollbar-thumb {
        background-color: rgba(0, 0, 0, 0.2);
        border-radius: 3px;
    }

    /* Asegura uniformidad para botones en móviles */
    .btn,
    .botones button {
        display: block;
        width: 100%;
        max-width: 250px;
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
        margin: 0 auto;
        line-height: 1.2;
        border-radius: 6px;
    }

    .botones {
        /*flex-direction: column;
        gap: 0.8rem;
        align-items: center;*/
        margin-top: 1rem;
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
    }
}