/* =============================================================
   Mi Ahorro Solar. Revista multipágina.
   1. Tokens
   ============================================================= */
@font-face { font-family: "Bodoni Moda"; src: url("assets/fonts/bodoni-moda-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Bodoni Moda"; src: url("assets/fonts/bodoni-moda-latin-500-italic.woff2") format("woff2"); font-weight: 500; font-style: italic; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("assets/fonts/source-serif-4-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("assets/fonts/source-serif-4-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("assets/fonts/source-serif-4-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("assets/fonts/inter-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("assets/fonts/inter-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }

:root {
  --bg: #f8f4ea;
  --bg-2: #efe7d6;
  --paper: #fffdf8;
  --ink: #1b1a16;
  --ink-soft: #3b3830;
  --ink-mute: #635c4c;
  --accent: #a23f0c;
  --sun: #e9a43a;
  --pine: #173b36;
  --pine-2: #22524b;
  --on-pine: #f4eddd;
  --line: #1b1a16;
  --line-soft: rgba(27, 26, 22, .18);
  --display: "Bodoni Moda", "Times New Roman", Georgia, serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --wrap: 1320px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =============================================================
   2. Base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: 1.5rem; }
body {
  background: var(--bg); color: var(--ink);
  font-family: var(--serif); font-size: 1.125rem; line-height: 1.7;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
ul, ol { padding: 0; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.1; letter-spacing: -0.01em; text-wrap: balance; }
p { text-wrap: pretty; }
em { font-style: italic; }
::selection { background: var(--sun); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 999; padding: .6rem 1rem; background: var(--ink); color: var(--bg); font-family: var(--sans); font-size: .9rem; }
.skip-link:focus { top: 1rem; }
.kicker { font-family: var(--sans); font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.verify { background: #fbe2a8; color: var(--ink); font-family: var(--sans); font-size: .68em; font-weight: 600; padding: .05em .35em; border-radius: 2px; white-space: nowrap; }

/* =============================================================
   3. Cabecera
   ============================================================= */
.masthead { padding: 0 var(--gutter); max-width: var(--wrap); margin-inline: auto; text-align: center; }
.masthead-bar { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px solid var(--line-soft); font-family: var(--sans); font-size: .72rem; font-weight: 500; color: var(--ink-mute); text-align: left; }
.masthead-bar span:last-child { white-space: nowrap; }
.brand { display: inline-block; padding: clamp(.8rem, 2.4vw, 1.5rem) 0; font-family: var(--display); font-weight: 600; font-size: clamp(2.1rem, 7vw, 4.4rem); line-height: 1; letter-spacing: -0.02em; text-decoration: none; }
.brand em { font-weight: 500; color: var(--accent); }
.brand--small { font-size: 1.7rem; padding: 0 0 .6rem; }
.nav { display: none; border-block: 1px solid var(--line); }
.nav ul, .nav-mobile ul { list-style: none; }
.nav ul { display: flex; justify-content: center; flex-wrap: wrap; gap: 0 clamp(1rem, 2.4vw, 2.4rem); }
.nav a { display: inline-block; padding: .75rem 0; font-family: var(--sans); font-size: .86rem; font-weight: 500; text-decoration: none; background: linear-gradient(var(--accent), var(--accent)) 0 calc(100% - .55rem) / 0 1.5px no-repeat; transition: background-size .35s var(--ease-out); }
.nav a[aria-current] { color: var(--accent); }
@media (hover: hover) { .nav a:hover { background-size: 100% 1.5px; } }
.nav-mobile { border-block: 1px solid var(--line); font-family: var(--sans); text-align: left; }
.nav-mobile summary { padding: .85rem 0; font-size: .95rem; font-weight: 600; cursor: pointer; list-style-position: inside; }
.nav-mobile a { display: block; padding: .8rem 0; border-top: 1px solid var(--line-soft); font-size: 1rem; font-weight: 500; text-decoration: none; }
.nav-mobile a[aria-current] { color: var(--accent); }
.progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 50; pointer-events: none; }
.progress span { display: block; height: 100%; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; }

/* =============================================================
   4. Marcadores de imagen y anuncios
   ============================================================= */
.ph { --a: #f3c56f; --b: #cfe0d6; width: 100%; position: relative; overflow: hidden;
  background:
    radial-gradient(38% 62% at 72% 88%, rgba(255, 244, 214, .95) 0 16%, rgba(233, 164, 58, .55) 34%, transparent 70%),
    linear-gradient(178deg, var(--b) 0%, #f6e7c6 58%, var(--a) 100%); }
.ph::after { content: ""; position: absolute; inset: auto 0 0; height: 34%;
  background: linear-gradient(0deg, rgba(23, 59, 54, .9), rgba(23, 59, 54, .82));
  clip-path: polygon(0 62%, 18% 30%, 30% 52%, 46% 12%, 62% 58%, 78% 26%, 100% 66%, 100% 100%, 0 100%); }
.ph--precios { --a: #e9a43a; --b: #f4dcae; }
.ph--ayudas { --a: #d98b52; --b: #dfe6cf; }
.ph--equipos { --a: #e2b866; --b: #b7cfd2; }
.ph--tramites { --a: #cda06a; --b: #e9e0cc; }
.ph--viviendas { --a: #e0894a; --b: #f2d9b3; }
.ph--mantenimiento { --a: #d6b37a; --b: #c5d8d3; }
.ph-img { width: 100%; object-fit: cover; }

.ad-slot { position: relative; display: flex; align-items: center; justify-content: center; margin-block: 2.75rem; background: transparent; border-block: 1px solid var(--line-soft); text-align: center; contain: layout; }
.ad-slot > span { font-family: var(--sans); font-size: .68rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); }
.ad-slot--rect { min-height: 280px; }
.ad-slot--tall { min-height: 600px; margin: 0; }
.ad-slot--band { min-height: 250px; }
.ad-slot.is-live { border: 0; display: block; }
.ad-slot.is-live > span { display: block; padding-bottom: .25rem; }
.ad-slot.is-off, .no-ad-slots .ad-slot { display: none; }

/* =============================================================
   5. Portada
   ============================================================= */
.hero { padding: clamp(2rem, 6vw, 4.5rem) var(--gutter) 0; max-width: var(--wrap); margin-inline: auto; }
.hero h1 { font-size: clamp(2.7rem, 8.6vw, 7rem); line-height: .98; letter-spacing: -0.025em; max-width: 13.5ch; margin-top: .9rem; }
.hero h1 em { font-weight: 500; color: var(--accent); }
.hero-foot { display: grid; gap: 1.5rem; margin-top: clamp(1.25rem, 3vw, 2rem); }
.hero-deck { max-width: 36rem; font-size: clamp(1.15rem, 2vw, 1.4rem); line-height: 1.45; color: var(--ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: center; font-family: var(--sans); }
.btn { display: inline-block; padding: .9rem 1.5rem; background: var(--pine); color: var(--on-pine); font-family: var(--sans); font-size: .95rem; font-weight: 600; text-decoration: none; border-radius: 2px; transition: background .25s, transform .35s var(--ease-out); }
.link-arrow { font-family: var(--sans); font-size: .95rem; font-weight: 600; text-underline-offset: .25em; }
@media (hover: hover) { .btn:hover { background: var(--pine-2); transform: translateY(-2px); } }

.solar-day { margin-top: clamp(1.5rem, 4vw, 2.5rem); border-top: 1px solid var(--line); }
.solar-day svg { width: 100%; height: auto; overflow: visible; }
.solar-day-controls { display: grid; gap: .75rem 2rem; padding: .9rem 0 1.1rem; border-block: 1px solid var(--line); font-family: var(--sans); }
.solar-day-read { display: flex; gap: 2rem; align-items: baseline; }
.solar-day-read b { font-family: var(--display); font-weight: 600; font-size: 2.1rem; line-height: 1; font-variant-numeric: tabular-nums; }
.solar-day-read small { display: block; margin-top: .25rem; color: var(--ink-mute); font-size: .75rem; font-weight: 500; }
.solar-day label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .35rem; }
.solar-day input[type="range"] { width: 100%; height: 44px; accent-color: var(--accent); cursor: ew-resize; margin: 0; }
.solar-day-note { font-size: .78rem; font-weight: 500; color: var(--ink-mute); }

.stats { max-width: var(--wrap); margin: clamp(2.5rem, 6vw, 4.5rem) auto 0; padding: 0 var(--gutter); display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem 1.5rem; }
.stat { border-top: 1px solid var(--line); padding-top: .7rem; }
.stat b { display: block; font-family: var(--display); font-weight: 600; font-size: clamp(2.2rem, 5.2vw, 3.6rem); line-height: 1.05; font-variant-numeric: tabular-nums; }
.stat span { display: block; margin-top: .25rem; font-family: var(--sans); font-size: .82rem; font-weight: 500; line-height: 1.4; color: var(--ink-mute); }

.section { max-width: var(--wrap); margin: clamp(3.5rem, 8vw, 6.5rem) auto 0; padding: 0 var(--gutter); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; border-top: 3px solid var(--line); padding-top: .6rem; margin-bottom: 1.75rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
.section-head a { font-family: var(--sans); font-size: .85rem; font-weight: 600; white-space: nowrap; text-underline-offset: .25em; }

.lead { display: grid; gap: 1.25rem; text-decoration: none; }
.lead-media { overflow: hidden; }
.lead h3 { font-size: clamp(2rem, 4.2vw, 3.3rem); margin: .5rem 0 .8rem; }
.lead p:not(.kicker) { color: var(--ink-soft); }
.more { display: inline-block; margin-top: 1rem; font-family: var(--sans); font-size: .9rem; font-weight: 600; border-bottom: 1.5px solid var(--accent); }
.cards { display: grid; gap: 1.75rem; }
.card { display: block; text-decoration: none; border-top: 1px solid var(--line); padding-top: .75rem; }
.card-media { margin: -.75rem 0 .85rem; overflow: hidden; }
.card h3 { font-size: 1.55rem; margin: .35rem 0 .5rem; transition: color .25s; }
.card p:not(.kicker) { font-size: 1rem; line-height: 1.5; color: var(--ink-soft); }
@media (hover: hover) { .card:hover h3, .lead:hover h3 { color: var(--accent); } }
.home-cards { margin-top: 2.5rem; }

.rows { list-style: none; border-top: 1px solid var(--line); }
.rows li { border-bottom: 1px solid var(--line-soft); }
.rows a { display: flex; justify-content: space-between; gap: 1.25rem; align-items: baseline; min-height: 44px; padding: .8rem 0; text-decoration: none; }
.row-title { font-size: 1.15rem; line-height: 1.3; font-weight: 600; }
.row-meta { flex: none; font-family: var(--sans); font-size: .75rem; font-weight: 500; color: var(--ink-mute); }
@media (hover: hover) { .rows a:hover .row-title { color: var(--accent); } }

.departments { list-style: none; border-top: 1px solid var(--line); }
.departments li { border-bottom: 1px solid var(--line); }
.departments a { display: grid; grid-template-columns: 2.6rem 1fr; gap: .1rem .5rem; padding: 1rem 0; text-decoration: none; transition: padding-left .4s var(--ease-out), background .3s; }
.dep-n { font-family: var(--sans); font-size: .78rem; font-weight: 600; color: var(--accent); padding-top: .55rem; }
.dep-name { font-family: var(--display); font-weight: 600; font-size: clamp(1.9rem, 4.6vw, 3.1rem); line-height: 1.1; }
.dep-sum { grid-column: 2; font-size: 1.02rem; line-height: 1.4; color: var(--ink-soft); }
@media (hover: hover) { .departments a:hover { padding-left: .9rem; background: var(--bg-2); } }

.band { margin-top: clamp(3.5rem, 8vw, 6.5rem); background: var(--pine); color: var(--on-pine); }
.band-inner { max-width: var(--wrap); margin-inline: auto; padding: clamp(2.75rem, 7vw, 5rem) var(--gutter); display: grid; gap: 2rem; }
.band h2 { font-size: clamp(2.1rem, 5vw, 3.8rem); max-width: 14ch; }
.band h2 em { font-weight: 500; color: var(--sun); }
.band p { color: #d9dfd2; max-width: 34rem; margin-top: .9rem; }
.band-links { display: grid; gap: 0; align-content: start; border-top: 1px solid rgba(244, 237, 221, .4); }
.band-links a { display: block; padding: 1.1rem 0; border-bottom: 1px solid rgba(244, 237, 221, .4); text-decoration: none; transition: padding-left .4s var(--ease-out); }
.band-links b { display: block; font-family: var(--display); font-weight: 600; font-size: 1.65rem; line-height: 1.15; }
.band-links span { display: block; margin-top: .2rem; font-size: 1rem; line-height: 1.4; color: #d9dfd2; }
@media (hover: hover) { .band-links a:hover { padding-left: .9rem; } }

.method { display: grid; gap: 1.75rem; }
.method div { border-top: 1px solid var(--line); padding-top: .7rem; }
.method h3 { font-size: 1.5rem; margin-bottom: .45rem; }
.method p { font-size: 1.02rem; line-height: 1.55; color: var(--ink-soft); }

/* =============================================================
   6. Artículo
   ============================================================= */
.art-head { max-width: 62rem; margin: clamp(1.5rem, 4vw, 3rem) auto 0; padding: 0 var(--gutter); }
.crumbs { display: flex; flex-wrap: wrap; gap: .1rem .45rem; margin-bottom: 1.1rem; font-family: var(--sans); font-size: .78rem; font-weight: 500; color: var(--ink-mute); }
.crumbs a { text-underline-offset: .2em; }
.art-head h1 { font-size: clamp(2.2rem, 6vw, 4.3rem); margin: .55rem 0 .9rem; }
.art--pillar .art-head h1 { font-size: clamp(2.5rem, 7.2vw, 5.4rem); line-height: 1.02; }
.art-meta { font-family: var(--sans); font-size: .8rem; font-weight: 500; line-height: 1.5; color: var(--ink-mute); }
.art-hero { max-width: 62rem; margin: 1.5rem auto 0; padding: 0 var(--gutter); overflow: clip; }
.art--pillar .art-hero { max-width: var(--wrap); }
.art-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 3rem; max-width: var(--wrap); margin: 2rem auto 0; padding: 0 var(--gutter); }
.art-main, .art-toc { width: 100%; max-width: 44rem; margin-inline: auto; }
.art-rail { display: none; }
.lede { font-size: 1.28rem; line-height: 1.55; margin-bottom: 1.75rem; }
.lede::first-letter { float: left; font-family: var(--display); font-weight: 600; font-size: 4.1em; line-height: .78; padding: .1em .1em 0 0; color: var(--accent); }
.prose > p, .prose li, .conclusion p { margin-bottom: 1.05rem; }
.prose ul, .prose ol, .conclusion ul { padding-left: 1.3rem; margin-bottom: 1.25rem; }
.prose li { margin-bottom: .45rem; }
.prose h2, .faq h2, .conclusion h2, .cluster-index h2 { font-size: clamp(1.75rem, 3.6vw, 2.35rem); margin: 2.75rem 0 .9rem; }
.prose h3 { font-size: 1.4rem; margin: 1.9rem 0 .55rem; }
.prose a, .conclusion a, .faq a, .lede a, .plain a, .art-note a { color: var(--accent); text-underline-offset: .18em; }
.prose strong, .conclusion strong { font-weight: 600; }
.table-wrap { overflow-x: auto; margin: 1.4rem 0 1.75rem; }
table { width: 100%; min-width: 30rem; border-collapse: collapse; font-family: var(--sans); font-size: .9rem; line-height: 1.45; font-weight: 500; }
caption { text-align: left; padding-bottom: .5rem; font-weight: 600; }
th { text-align: left; font-weight: 600; border-bottom: 2px solid var(--line); padding: .55rem .75rem .55rem 0; vertical-align: bottom; }
td { border-bottom: 1px solid var(--line-soft); padding: .6rem .75rem .6rem 0; vertical-align: top; }
.callout { margin: 1.75rem 0; padding: 1.1rem 1.25rem; background: var(--bg-2); border-left: 3px solid var(--accent); font-size: 1.04rem; line-height: 1.55; }
.callout-link { display: block; margin: 1.75rem 0; padding: 1.15rem 1.25rem; background: var(--pine); color: var(--on-pine) !important; text-decoration: none; }
.callout-link b { display: block; font-family: var(--display); font-weight: 600; font-size: 1.45rem; line-height: 1.2; }
.callout-link span { font-size: 1rem; line-height: 1.4; display: block; margin-top: .25rem; color: #d9dfd2; }
.toc { border-block: 1px solid var(--line); margin-bottom: 1.75rem; font-family: var(--sans); font-size: .9rem; font-weight: 500; }
.toc summary { padding: .8rem 0; font-weight: 600; cursor: pointer; }
.toc ol { list-style: none; padding-bottom: .7rem; }
.toc a { display: block; padding: .42rem 0 .42rem .75rem; line-height: 1.35; text-decoration: none; border-left: 2px solid var(--line-soft); transition: border-color .2s, color .2s; }
.toc a.is-active { border-left-color: var(--accent); color: var(--accent); }
.faq-item { border-top: 1px solid var(--line-soft); }
.faq-item:last-child { border-bottom: 1px solid var(--line-soft); }
.faq-item summary { padding: .9rem 0; font-weight: 600; line-height: 1.35; cursor: pointer; }
.faq-item div { padding-bottom: 1rem; }
.art-note { margin-top: 2rem; padding-top: .8rem; border-top: 1px solid var(--line-soft); font-family: var(--sans); font-size: .8rem; line-height: 1.5; font-weight: 500; color: var(--ink-mute); }
.related { max-width: var(--wrap); margin: 3.5rem auto 0; padding: 0 var(--gutter); }
.related h2 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); border-top: 3px solid var(--line); padding-top: .6rem; margin-bottom: 1.5rem; }
.cluster-index { margin-top: 1rem; }

/* Calculadoras */
.calc { margin: 1.25rem 0 2rem; padding: clamp(1.1rem, 3vw, 1.75rem); background: var(--paper); border: 1px solid var(--line); font-family: var(--sans); }
.calc-fields { display: grid; gap: 1rem 1.25rem; }
.calc label { display: block; font-size: .88rem; font-weight: 600; line-height: 1.3; margin-bottom: .3rem; }
.calc input, .calc select { width: 100%; min-height: 46px; padding: .55rem .65rem; font: 500 1rem var(--sans); color: var(--ink); background: #fff; border: 1px solid #857c69; border-radius: 2px; }
.calc small { display: block; margin-top: .25rem; font-size: .76rem; line-height: 1.35; font-weight: 500; color: var(--ink-mute); }
.calc-out { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem 1.25rem; margin-top: 1.5rem; padding-top: 1.1rem; border-top: 3px solid var(--line); min-height: 11rem; }
.calc-out div b { display: block; font-family: var(--display); font-weight: 600; font-size: clamp(1.45rem, 2.4vw, 2rem); line-height: 1.1; white-space: nowrap; font-variant-numeric: tabular-nums; }
.calc-out div span { display: block; font-size: .78rem; font-weight: 500; line-height: 1.35; color: var(--ink-mute); margin-top: .2rem; }
.calc-msg { min-height: 2.6rem; margin-top: 1rem; font-size: .88rem; line-height: 1.45; font-weight: 500; color: var(--ink-soft); }

/* Páginas simples */
.plain { max-width: 44rem; margin: clamp(2rem, 5vw, 3.5rem) auto 0; padding: 0 var(--gutter); }
.plain h1 { font-size: clamp(2.3rem, 6vw, 3.9rem); margin-bottom: 1.25rem; }
.plain h2 { font-size: 1.7rem; margin: 2.25rem 0 .7rem; }
.plain p, .plain li { margin-bottom: .9rem; }
.plain ul { padding-left: 1.3rem; }
.index-group { margin-top: 2.25rem; }
.index-group h2 { margin-top: 0; }
.index-group h2 a { color: inherit; text-decoration: none; }
.index-group > p { color: var(--ink-soft); margin-bottom: .75rem; }

/* Pie */
.footer { margin-top: clamp(4rem, 9vw, 7rem); background: var(--ink); color: #e8e1d2; font-family: var(--sans); font-size: .9rem; font-weight: 500; }
.footer-inner { max-width: var(--wrap); margin-inline: auto; padding: 3rem var(--gutter) 2rem; display: grid; gap: 2rem; }
.footer h2 { font-family: var(--sans); font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #bdb5a3; margin-bottom: .6rem; }
.footer ul { list-style: none; }
.footer li a { display: inline-block; padding: .3rem 0; text-decoration: none; }
.footer li a:hover { text-decoration: underline; }
.footer .brand em { color: var(--sun); }
.footer-brand p:last-child { max-width: 24rem; line-height: 1.5; }
.footer-legal { max-width: var(--wrap); margin-inline: auto; padding: 1rem var(--gutter) 1.5rem; border-top: 1px solid rgba(232, 225, 210, .2); font-size: .78rem; color: #bdb5a3; }

/* =============================================================
   7. Efectos: solo portada y pilares
   ============================================================= */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }
[data-parallax] > * { will-change: transform; }
.solar-arc { stroke-dasharray: 4 9; }
.js .solar-arc-draw { stroke-dasharray: 1700; stroke-dashoffset: 1700; animation: arcDraw 1.8s var(--ease-out) .15s forwards; }
@keyframes arcDraw { to { stroke-dashoffset: 0; } }
.sun-glow { animation: sunBreath 5s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
@keyframes sunBreath { 50% { transform: scale(1.14); opacity: .75; } }

/* =============================================================
   8. Pantallas mayores
   ============================================================= */
@media (min-width: 540px) {
  .cards, .calc-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .solar-day-controls { grid-template-columns: auto 1fr; align-items: center; }
  .solar-day-note { grid-column: 1 / -1; }
  .calc-out { grid-template-columns: repeat(4, 1fr); min-height: 7rem; }
}
@media (min-width: 720px) {
  .hero-foot { grid-template-columns: 1.3fr 1fr; align-items: end; }
  .hero-actions { justify-content: flex-end; }
  .method { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
  .footer-inner { grid-template-columns: 1.6fr 1fr 1fr 1fr; }
  .departments a { grid-template-columns: 3.5rem minmax(14rem, 1fr) 1.3fr; align-items: baseline; }
  .dep-sum { grid-column: auto; text-align: right; }
}
@media (min-width: 960px) {
  .nav { display: block; }
  .nav-mobile { display: none; }
  .hero { padding-top: clamp(1.5rem, 3vw, 2.5rem); }
  .hero h1 { font-size: clamp(3.6rem, 5.9vw, 6rem); max-width: 19ch; }
  .solar-day svg { max-height: 46vh; margin-inline: auto; }
  .lead { grid-template-columns: 1.45fr 1fr; gap: 2.5rem; align-items: center; }
  .cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .band-inner { grid-template-columns: 1.1fr 1fr; gap: 4rem; }
  .art-grid { grid-template-columns: minmax(0, 1fr) 300px; }
  .art-toc { grid-column: 1; }
  .art-main { grid-column: 1; }
  .art-rail { display: block; grid-column: 2; grid-row: 1 / span 2; }
  .art-rail .ad-slot { position: sticky; top: 1.5rem; }
}
@media (min-width: 1280px) {
  .art-grid { grid-template-columns: 200px minmax(0, 44rem) 300px; justify-content: space-between; }
  .art-toc { grid-column: 1; grid-row: 1 / span 2; margin: 0; }
  .art-toc .toc { position: sticky; top: 1.5rem; border: 0; max-height: calc(100vh - 3rem); overflow-y: auto; }
  .art-toc .toc summary { pointer-events: none; list-style: none; padding-top: 0; }
  .art-toc .toc summary::-webkit-details-marker { display: none; }
  .art-main { grid-column: 2; }
  .art-rail { grid-column: 3; grid-row: 1 / span 2; }
}

/* Sin anuncios activos: la columna lateral no reserva espacio */
.no-ad-slots .art-rail { display: none; }
@media (min-width: 960px) { .no-ad-slots .art-grid { grid-template-columns: minmax(0, 1fr); } }
@media (min-width: 1280px) { .no-ad-slots .art-grid { grid-template-columns: 200px minmax(0, 44rem); justify-content: center; gap: 0 4rem; } }

/* =============================================================
   9. Movimiento reducido: solo lo intrusivo
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sun-glow { animation: none; }
}