/* =====================================================
   PÁGINAS DE GAS — AMI Estable / AMI Justa
   ===================================================== */

body {
    background: var(--indigo-dye);
    color: var(--white);
}

.gas { overflow-x: hidden; }

.gas__container {
    width: 100%;
    max-width: 1180px;
    margin-inline: auto;
    padding-inline: 16px;
}
@media (min-width: 768px) { .gas__container { padding-inline: 24px; } }

/* ---------- Cabecera de la tarifa ---------- */
.gas-hero {
    background: var(--indigo-dye);
    text-align: center;
    padding: 56px 0 40px;
}
.gas-hero__icon { width: 84px; height: auto; margin: 0 auto 18px; display: block; }
.gas-hero__title {
    color: var(--aquamarine);
    font-size: clamp(2.2rem, 6vw, 3.4rem);
    margin: 0 0 8px;
}
.gas-hero__claim {
    color: var(--aquamarine);
    font-family: var(--font-body);
    font-size: clamp(1.05rem, 2.6vw, 1.45rem);
    font-weight: 400;
    margin: 0;
    opacity: 0.9;
}

/* ---------- Descripción + precios ---------- */
.gas-intro { padding: 20px 0 70px; }

.gas-intro__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: stretch;
}

.gas-card {
    background: var(--aquamarine);
    color: var(--indigo-dye);
    border-radius: 40px 0 40px 0;
    padding: 32px 28px;
}
.gas-card h2 {
    font-size: clamp(1.4rem, 3.4vw, 1.75rem);
    margin: 0 0 18px;
    color: var(--indigo-dye);
}
.gas-card p { margin: 0 0 16px; font-size: 1rem; line-height: 1.65; }
.gas-card p:last-child { margin-bottom: 0; }
.gas-card strong { font-weight: 800; }

.gas-precios {
    position: relative;
    background: var(--indigo-dye);
    border: 2px solid var(--flame);
    border-radius: 0 40px 0 40px;
    padding: 32px 28px 78px;
}
.gas-precios__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.gas-precios__item { display: grid; grid-template-columns: 30px 1fr; gap: 12px; }
.gas-precios__flame { width: 24px; height: auto; margin-top: 4px; }
.gas-precios__ref {
    display: block;
    color: var(--flame);
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
}
.gas-precios__linea { display: block; color: var(--white); font-size: 0.98rem; line-height: 1.5; }

.gas-precios__nota { margin-top: 24px; }
.gas-precios__nota-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: none;
    border: none;
    padding: 6px 0;
    min-height: 44px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    text-align: left;
}
.gas-precios__nota-btn::before {
    content: "+";
    font-family: var(--font-head);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--flame);
    line-height: 1;
}
.gas-precios__nota-btn[aria-expanded="true"]::before { content: "–"; }
.gas-precios__nota-texto {
    margin: 10px 0 0;
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
}

.gas-btn {
    display: inline-block;
    background: var(--flame);
    color: var(--white);
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 16px 42px;
    min-height: 56px;
    border: none;
    border-radius: 16px 0 16px 0;
    transition: all 0.25s ease;
    box-shadow: 0 6px 18px rgba(255, 102, 0, 0.3);
    cursor: pointer;
}
.gas-btn:hover { background: var(--flame-dark); transform: translateY(-2px); color: var(--white); }

.gas-precios__cta {
    position: absolute;
    right: 24px;
    bottom: -22px;
}

/* ---------- Por qué esta tarifa ---------- */
.gas-why { padding: 30px 0 70px; }
.gas-why__grid { display: grid; grid-template-columns: 1fr; gap: 40px; }

.gas-why__intro { display: grid; grid-template-columns: 74px 1fr; gap: 18px; align-items: start; }
.gas-why__icon { width: 74px; height: auto; }
.gas-why__title {
    font-size: clamp(1.4rem, 3.6vw, 1.9rem);
    color: var(--aquamarine);
    margin: 0 0 14px;
}
.gas-why__title span { color: var(--flame); }
.gas-why__text { margin: 0; color: var(--white); font-size: 1rem; line-height: 1.65; }

.gas-why__blocks { display: grid; gap: 26px; }
.gas-why__block h3 {
    color: var(--aquamarine);
    font-size: 1.25rem;
    margin: 0 0 8px;
}
.gas-why__block p { margin: 0; font-size: 0.95rem; line-height: 1.6; color: var(--white); }

/* ---------- Ventajas sobre foto ---------- */
.gas-ventajas {
    position: relative;
    padding: 60px 0 80px;
    background-color: var(--indigo-dye-dark);
    background-image: linear-gradient(rgba(13, 42, 58, 0.55), rgba(13, 42, 58, 0.55)), url('/assets/img/gas-calefaccion.jpg');
    background-size: cover;
    background-position: center;
}

.gas-ventajas__box {
    position: relative;
    background: var(--aquamarine);
    border: 2px solid var(--flame);
    border-radius: 30px 0 30px 0;
    padding: 34px 28px 60px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: center;
}
.gas-ventajas__title {
    color: var(--indigo-dye);
    font-size: clamp(1.5rem, 4vw, 2.1rem);
    margin: 0;
}
.gas-ventajas__title span { color: var(--flame); }

.gas-ventajas__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.gas-ventajas__list li {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--indigo-dye);
    font-size: 1.02rem;
}
.gas-ventajas__list svg {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    fill: none;
    stroke: var(--indigo-dye);
    stroke-width: 2;
}
.gas-ventajas__cta {
    position: absolute;
    left: 50%;
    bottom: -26px;
    transform: translateX(-50%);
}

/* ---------- FAQS ---------- */
.gas-faq { background: var(--aquamarine); padding: 70px 0 80px; }
.gas-faq__title {
    color: var(--indigo-dye);
    font-size: clamp(1.8rem, 4.6vw, 2.6rem);
    margin: 0 0 30px;
    line-height: 1.1;
}
.gas-faq__title span { display: block; color: var(--flame); }

.gas-faq .faq-item {
    border-bottom: 1px solid rgba(21, 59, 80, 0.25);
}
.gas-faq .faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    background: none;
    border: none;
    padding: 20px 0;
    min-height: 56px;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    color: var(--indigo-dye);
}
.gas-faq .faq-question-text { flex: 1; }
.gas-faq .faq-icon {
    font-size: 1.6rem;
    line-height: 1;
    color: var(--flame);
    transition: transform 0.25s ease;
}
.gas-faq .faq-item.active .faq-icon { transform: rotate(45deg); }
.gas-faq .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.gas-faq .faq-answer-content {
    padding: 0 0 22px;
    color: var(--indigo-dye);
    font-size: 0.98rem;
    line-height: 1.7;
}
.gas-faq .faq-answer-content p { margin: 0 0 12px; }
.gas-faq .faq-answer-content p:last-child { margin-bottom: 0; }

/* ---------- Aviso de precios provisionales (solo interno) ---------- */
.gas-aviso {
    background: var(--canary);
    color: var(--indigo-dye);
    text-align: center;
    font-weight: 700;
    padding: 12px 16px;
    font-size: 0.9rem;
}

/* ---------- Escritorio ---------- */
@media (min-width: 900px) {
    .gas-hero { padding: 70px 0 46px; }
    .gas-hero__icon { width: 104px; }

    .gas-intro__grid { grid-template-columns: 1fr 1fr; gap: 0; }
    .gas-card { padding: 44px 40px; border-radius: 60px 0 0 0; }
    .gas-precios { padding: 44px 40px 92px; border-radius: 0 60px 0 60px; }

    .gas-why__grid { grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: start; }
    .gas-why__blocks { gap: 30px; }

    .gas-ventajas { padding: 90px 0 110px; }
    .gas-ventajas__box { grid-template-columns: 1fr 1fr; padding: 46px 48px 62px; gap: 40px; }
    .gas-ventajas__cta { left: auto; right: 60px; transform: none; }

    .gas-faq__title span { display: inline; }
    .gas-faq__title { margin-bottom: 36px; }
}

.gas-card a { color: var(--indigo-dye); font-weight: 700; text-decoration: underline; }
.gas-card a:hover { color: var(--flame-on-light); }