.receipt-intro { padding-top: 185px; padding-bottom: 75px; }
.receipt-intro h1 { font-size: clamp(58px, 7.7vw, 126px); }
.receipt-intro-bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; margin-top: 46px; }
.receipt-intro-bottom p { max-width: 650px; color: var(--muted); font-size: 21px; }
.receipt-down { display: flex; align-items: center; gap: 40px; white-space: nowrap; font-size: 15px; }
.receipt-down span { font-size: 32px; color: var(--gold); }
.receipt-guide { border-top: 1px solid var(--line); }
.receipt-guide-heading { display: grid; grid-template-columns: .8fr 1.1fr 1fr; align-items: start; gap: 30px; margin-bottom: 65px; }
.receipt-guide-heading .eyebrow { margin-top: 9px; }
.receipt-guide-heading h2 { font-size: clamp(42px, 4.3vw, 64px); }
.receipt-guide-heading > p:last-child { color: var(--muted); font-size: 17px; padding-top: 8px; }
.receipt-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); align-items: start; gap: clamp(40px, 7vw, 100px); }
.receipt-stage { position: relative; margin: 0; }
.receipt-stage > img { width: 100%; height: auto; }
.receipt-stage figcaption { margin-top: 22px; font-size: 13px; line-height: 1.6; color: var(--muted); max-width: 600px; }
.receipt-hotspots { position: absolute; top: 0; left: 0; width: 100%; aspect-ratio: 760 / 1040; }
.receipt-hotspots[hidden], .receipt-detail[hidden], .receipt-picker[hidden], .receipt-step-controls[hidden] { display: none; }
.receipt-spot { position: absolute; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--ink); background: var(--paper); color: var(--ink); transform: translate(-50%, -50%); font-family: var(--display); font-weight: 600; font-size: 16px; transition: background .2s, transform .2s; }
.receipt-spot::after { content: ''; position: absolute; inset: -5px; border: 1px solid var(--ink); border-radius: 50%; opacity: 0; transition: opacity .2s; }
.receipt-spot:hover, .receipt-spot[aria-pressed="true"] { background: var(--gold); transform: translate(-50%, -50%) scale(1.08); }
.receipt-spot[aria-pressed="true"]::after { opacity: .5; }
.receipt-spot:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
.receipt-spot--servicio { left: 53%; top: 20%; }
.receipt-spot--tarifa { left: 35%; top: 33%; }
.receipt-spot--periodo { left: 91%; top: 33%; }
.receipt-spot--consumo { left: 91%; top: 54.7%; }
.receipt-spot--historial { left: 91%; top: 73%; }
.receipt-spot--importe { left: 89%; top: 22%; }
.receipt-spot--apoyo { left: 91%; top: 89.2%; }
.receipt-explainer { position: sticky; top: 118px; scroll-margin-top: 120px; }
.receipt-picker { margin-bottom: 36px; }
.receipt-picker label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.receipt-picker select { width: 100%; border: 1px solid var(--line); border-radius: 0; background: var(--ink); color: var(--paper); padding: 15px 42px 15px 17px; font-size: 16px; min-height: 54px; }
.receipt-detail-label { display: flex; align-items: center; gap: 17px; font-size: 14px; color: var(--gold); margin-bottom: 26px; }
.receipt-detail-label span { display: inline-flex; width: 35px; height: 35px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 50%; }
.receipt-detail h3 { font-size: clamp(35px, 3.8vw, 58px); margin-bottom: 25px; }
.receipt-detail-value { color: var(--gold); font-family: var(--serif); font-size: clamp(30px, 3vw, 46px); font-style: italic; margin-bottom: 24px; }
.receipt-detail > p:not([class]) { color: var(--paper); font-size: 18px; }
.receipt-detail-note { margin-top: 28px; padding-left: 20px; border-left: 2px solid var(--gold); color: var(--muted); font-size: 15px; }
.receipt-source { display: flex; align-items: center; justify-content: space-between; gap: 15px; font-size: 13px; margin-top: 28px; padding-block: 14px; border-bottom: 1px solid var(--line); }
.receipt-source:hover { color: var(--gold); }
.receipt-source span { flex-shrink: 0; font-size: 22px; }
.receipt-details > .receipt-detail + .receipt-detail { margin-top: 55px; }
.receipt-ready .receipt-details > .receipt-detail + .receipt-detail { margin-top: 0; }
.receipt-step-controls { display: grid; grid-template-columns: 46px 1fr 46px; align-items: center; gap: 14px; margin-top: 30px; }
.receipt-step-controls button { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--paper); font-size: 21px; }
.receipt-step-controls button:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.receipt-step-status { color: var(--muted); text-align: center; font-size: 13px; }
.receipt-next { background: var(--gold); color: var(--ink); padding-block: 95px; }
.receipt-next-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.receipt-next .eyebrow { color: var(--ink); }
.receipt-next-grid > div:last-child > p:first-child { font-size: 21px; margin-bottom: 30px; max-width: 570px; }
.receipt-next .arrow-link { font-size: 17px; }
.receipt-sharing-note { font-size: 14px; margin-top: 30px; opacity: .8; }
.receipt-sharing-note a { text-decoration: underline; text-underline-offset: 4px; }
.receipt-sources { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.receipt-sources h2 { font-size: clamp(40px, 4.4vw, 65px); }
.receipt-sources p:last-child { color: var(--muted); font-size: 14px; margin-top: 26px; max-width: 310px; }
.receipt-sources ul { padding: 0; margin: 0; list-style: none; }
.receipt-sources li { border-bottom: 1px solid var(--line); }
.receipt-sources li:first-child { border-top: 1px solid var(--line); }
.receipt-sources li a { display: grid; grid-template-columns: 1fr 25px; column-gap: 20px; padding-block: 23px; }
.receipt-sources li a > span { font-size: 18px; }
.receipt-sources li a > small { grid-column: 1; font-size: 13px; color: var(--muted); margin-top: 5px; }
.receipt-sources li a > svg { width: 25px; grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--gold); }
.receipt-sources li a:hover > span { color: var(--gold); }
.receipt-teaser { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 80px; }
.receipt-teaser-copy h2 { font-size: clamp(42px, 4.3vw, 68px); }
.receipt-teaser-copy > p:not(.eyebrow) { max-width: 510px; color: var(--muted); margin-block: 28px 32px; }
.receipt-teaser-visual { display: block; padding: 44px 35px 22px; background: var(--ink-light); }
.receipt-teaser-paper { background: var(--paper); color: var(--ink); border-top: 6px solid var(--gold); padding: 36px 28px; transform: rotate(-4deg); transition: transform .45s ease; }
.receipt-teaser-visual:hover .receipt-teaser-paper { transform: rotate(0); }
.receipt-teaser-kicker { display: block; letter-spacing: .12em; font-size: 11px; }
.receipt-teaser-equation { display: block; border-bottom: 1px solid #a9b1ac; font-family: var(--display); font-size: clamp(24px, 2.2vw, 36px); padding-block: 35px 20px; white-space: nowrap; }
.receipt-teaser-equation small { margin-inline: 8px; font-size: 22px; }
.receipt-teaser-paper > strong { display: block; font-family: var(--display); font-size: clamp(60px, 7vw, 104px); line-height: 1.25; font-weight: 400; letter-spacing: -.065em; }
.receipt-teaser-paper > strong span { font-family: var(--serif); font-size: .42em; letter-spacing: 0; font-style: italic; }
.receipt-teaser-foot { display: block; font-size: 12px; margin-top: 25px; }
.receipt-teaser-caption { display: block; text-align: center; margin-top: 32px; font-size: 12px; color: var(--muted); }
@media (min-width: 1500px) { .receipt-spot { width: 48px; height: 48px; font-size: 18px; } }
@media (max-width: 1100px) { .receipt-guide-heading { grid-template-columns: 1fr 1fr; } .receipt-guide-heading .eyebrow { grid-column: 1 / -1; margin-bottom: 0; } .receipt-layout { gap: 40px; } .receipt-next-grid, .receipt-sources, .receipt-teaser { gap: 45px; } .receipt-detail h3 { font-size: 37px; } }
@media (max-width: 860px) {
  .receipt-intro { padding-top: 145px; padding-bottom: 58px; }
  .receipt-intro h1 { font-size: clamp(49px, 9vw, 78px); }
  .receipt-intro-bottom { display: block; margin-top: 30px; }
  .receipt-intro-bottom p { font-size: 19px; }
  .receipt-down { margin-top: 28px; justify-content: space-between; }
  .receipt-guide-heading { grid-template-columns: 1fr; gap: 20px; margin-bottom: 40px; }
  .receipt-guide-heading h2 br { display: none; }
  .receipt-guide-heading > p:last-child { max-width: 500px; padding: 0; }
  .receipt-layout { grid-template-columns: 1fr; gap: 38px; }
  .receipt-stage { max-width: 620px; margin-inline: auto; }
  .receipt-explainer { position: static; border-top: 1px solid var(--line); padding-top: 34px; }
  .receipt-detail h3 { font-size: 42px; max-width: 570px; }
  .receipt-detail-value { font-size: 38px; }
  .receipt-next { padding-block: 65px; }
  .receipt-next-grid, .receipt-sources, .receipt-teaser { grid-template-columns: 1fr; gap: 38px; }
  .receipt-next-grid > div:last-child > p:first-child { font-size: 19px; }
  .receipt-teaser-visual { max-width: 520px; width: 100%; justify-self: center; }
  .receipt-teaser-equation { font-size: 32px; }
  .receipt-teaser-paper > strong { font-size: 88px; }
}
@media (max-width: 480px) {
  .receipt-intro h1 { font-size: 50px; }
  .receipt-guide-heading h2, .receipt-detail h3 { font-size: 37px; }
  .receipt-spot { width: 44px; height: 44px; font-size: 14px; border-width: 1.5px; }
  .receipt-spot::after { inset: -4px; }
  .receipt-detail > p:not([class]) { font-size: 17px; }
  .receipt-picker { margin-bottom: 26px; }
  .receipt-teaser-visual { padding: 35px 23px 18px; }
  .receipt-teaser-paper { padding: 28px 22px; }
  .receipt-teaser-equation { font-size: 27px; }
  .receipt-next .arrow-link { font-size: 16px; }
  .receipt-sources li a > span { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { .receipt-spot, .receipt-spot::after, .receipt-teaser-paper { transition: none; } }
/* A compact entry point on the homepage; the full guide has its own page. */
.receipt-teaser { padding-block: 64px; grid-template-columns: 1.35fr .65fr; }
.receipt-teaser-copy h2 { font-size: clamp(36px, 3.5vw, 54px); }
.receipt-teaser-copy > p:not(.eyebrow) { font-size: 17px; margin-block: 20px; }
.receipt-teaser-visual { padding: 25px 24px 18px; }
.receipt-teaser-paper { padding: 23px; }
.receipt-teaser-equation { font-size: 24px; padding-block: 22px 15px; }
.receipt-teaser-paper > strong { font-size: 68px; }
.receipt-teaser-foot { margin-top: 12px; }
.receipt-teaser-caption { margin-top: 20px; }
@media (max-width:860px) { .receipt-teaser { grid-template-columns: 1.15fr .85fr; gap: 35px; } .receipt-teaser-equation { font-size: 19px; } .receipt-teaser-equation small { margin-inline: 3px; } }
@media (max-width:600px) { .receipt-teaser { display: block; padding-block: 55px; } .receipt-teaser-visual { display: none; } }