/* =========================================================
   GUÍA VTC — Diseño editorial, cristal y verde metálico
   ========================================================= */
.page-guia {
    background-image: linear-gradient(110deg, rgba(5, 16, 12, .88), rgba(5, 16, 12, .64)), url('../images/home.webp');
}

/* Composición principal: cabecera ligera y seis módulos. */
.guia-main {
    display: grid;
    align-content: center;
    gap: clamp(22px, 3vw, 40px);
    padding-block: clamp(28px, 4vw, 52px);
}

.guia-intro {
    max-width: 760px;
}

.guia-intro h1 {
    margin: 12px 0;
    font-size: clamp(2.4rem, 5vw, 4.6rem);
    font-weight: 300;
    letter-spacing: -.045em;
    line-height: 1.08;
}

.guia-intro h1 span {
    color: #a3f86e;
}

.guia-intro > p:not(.interior-kicker) {
    color: #e1e9e1;
    line-height: 1.7;
    max-width: 65ch;
}

.guia-intro .interior-actions {
    margin-top: 22px;
}

/* Módulos desplegables: el texto permanece en el HTML. */
.guia-paneles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 14px;
}

.guia-card {
    min-width: 0;
    border: 1px solid rgba(197, 255, 145, .28);
    border-radius: 18px;
    background: rgba(16, 34, 23, .63);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: border-color .2s ease, background-color .2s ease;
}

.guia-card:hover,
.guia-card[open] {
    border-color: rgba(163, 248, 110, .75);
    background-color: rgba(16, 34, 23, .87);
}

.guia-card summary {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    min-height: 108px;
    padding: 20px;
    cursor: pointer;
    list-style: none;
    border-radius: 18px;
}

.guia-card summary::-webkit-details-marker {
    display: none;
}

/* Indicador de apertura sin imágenes externas. */
.guia-card summary::after {
    content: '+';
    color: #a3f86e;
    font-size: 1.6rem;
    font-weight: 300;
}

.guia-card[open] summary::after {
    content: '−';
}

.guia-numero {
    color: #c5ff91;
    font-size: .78rem;
    letter-spacing: .12em;
}

.guia-tema {
    display: grid;
    gap: 6px;
    font-size: 1.05rem;
    font-weight: 500;
}

.guia-tema small {
    color: #bbcbbb;
    font-size: .82rem;
    font-weight: 400;
}

/* Información ampliada: lectura cómoda y enlaces oficiales. */
.guia-texto {
    padding: 0 20px 24px;
    color: #e1e9e1;
    overflow-wrap: anywhere;
    line-height: 1.65;
}

.guia-texto h2 {
    padding-top: 15px;
    border-top: 1px solid rgba(197, 255, 145, .2);
    font-size: 1.1rem;
    font-weight: 500;
    color: #fff;
}

.guia-texto h3 {
    margin-top: 15px;
    font-size: 1rem;
    font-weight: 500;
}

.guia-texto p {
    margin: 12px 0;
    font-size: .92rem;
}

.guia-texto a,
.guia-nota a {
    color: #c5ff91;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.guia-nota {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px 24px;
    color: #d2dfd2;
    font-size: .8rem;
    line-height: 1.6;
}

.guia-card summary:focus-visible {
    outline: 2px solid #c5ff91;
    outline-offset: 3px;
}

/* Tablet y móvil: sin alturas fijas ni recortes al desplegar. */
@media (max-width: 1024px) {
    .guia-paneles {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .guia-paneles {
        grid-template-columns: 1fr;
    }

    .guia-card summary {
        min-height: 84px;
        padding: 16px;
    }

    .guia-texto {
        padding-inline: 16px;
    }

    .guia-intro h1 {
        font-size: clamp(2.2rem, 10vw, 3.5rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .guia-card {
        transition: none;
    }
}