/* Explicando Energía · mismos tonos que los reels: negro profundo, oro y texto marfil */
:root {
  --fondo: #07080B;
  --fondo2: #0E1015;
  --tarjeta: #14161B;
  --borde: rgba(255, 255, 255, .1);
  --oro: #F2B544;
  --oro2: #FFD27A;
  --tinta: #14100a;
  --texto: #F4F2EE;
  --mute: #A39F98;
  --rojo: #FF5A4A;
  --verde: #25D366;
  --radio: 18px;
  --ancho: 1120px;
  --fuente: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 500 17px/1.55 var(--fuente); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--oro); }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.03em; margin: 0 0 .5em; }
h1 { font-weight: 900; font-size: clamp(38px, 6.4vw, 68px); }
h2 { font-weight: 800; font-size: clamp(28px, 4.2vw, 44px); }
h3 { font-weight: 800; font-size: 20px; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.oro { color: var(--oro); }
.eti { font-weight: 800; font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--mute); margin-bottom: 14px; }
.eti--a { color: var(--oro); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 800; font-size: 16px; text-decoration: none; border: 0; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid var(--oro2); outline-offset: 3px; }
.btn svg { width: 20px; height: 20px; fill: currentColor; }
.btn--oro { background: var(--oro); color: var(--tinta); box-shadow: 0 0 40px rgba(242, 181, 68, .35); }
.btn--oro:hover { box-shadow: 0 0 60px rgba(242, 181, 68, .55); }
.btn--wa { background: var(--verde); color: #04210f; }
.btn--linea { background: transparent; color: var(--oro); border: 2px solid var(--oro); }
.btn--peq { min-height: 42px; padding: 0 18px; font-size: 15px; }
.btn--ancho { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; }

.cab { position: sticky; top: 0; z-index: 20; background: rgba(7, 8, 11, .82); backdrop-filter: blur(12px); border-bottom: 1px solid var(--borde); }
.cab__in { max-width: var(--ancho); margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; gap: 24px; }
.marca { display: inline-flex; align-items: center; gap: 8px; color: var(--texto); text-decoration: none; font-weight: 600; font-size: 19px; letter-spacing: -.02em; }
.marca b { font-weight: 900; color: var(--oro); }
.marca__rayo { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: var(--oro); color: var(--tinta); font-size: 18px; }
.cab__nav { display: flex; gap: 22px; margin-left: auto; }
.cab__nav a { color: var(--mute); text-decoration: none; font-weight: 600; font-size: 15px; }
.cab__nav a:hover { color: var(--texto); }

.heroe { position: relative; max-width: var(--ancho); margin: 0 auto; padding: 72px 16px 80px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center; }
.heroe::before { content: ""; position: absolute; inset: -80px 0 auto; height: 520px; z-index: -1; background: radial-gradient(600px 300px at 30% 30%, rgba(242, 181, 68, .16), transparent 70%); }
.heroe__sub { font-size: 19px; color: #d8d4cd; max-width: 34em; }
.heroe__cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 22px; }
.heroe__pros { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--mute); font-weight: 600; font-size: 15px; }
.heroe__pros li::before { content: "✓ "; color: var(--oro); font-weight: 900; }

.heroe__papel { position: relative; }
.papel { border-radius: 20px; background: linear-gradient(170deg, #fbfaf6, #e2ded4); color: #1c1c1c; padding: 0 0 18px; transform: rotate(3deg); box-shadow: 0 40px 100px rgba(0, 0, 0, .7), 0 0 80px rgba(242, 181, 68, .14); overflow: hidden; }
.papel__cab { height: 64px; background: #10161d; margin-bottom: 14px; position: relative; }
.papel__cab i { position: absolute; left: 22px; top: 23px; width: 110px; height: 18px; border-radius: 9px; background: var(--oro); }
.papel__fila { display: flex; justify-content: space-between; padding: 12px 22px; border-bottom: 1px solid #d3cec4; font-weight: 700; font-size: 15px; }
.papel__fila .mal { color: #d8262a; }
.papel__tot { display: flex; justify-content: space-between; margin: 16px 18px 0; padding: 14px 16px; border-radius: 12px; background: #d8262a; color: #fff; font-weight: 900; font-size: 18px; }
.sello { position: absolute; right: -14px; bottom: -104px; padding: 14px 20px; border-radius: 18px; background: var(--fondo2); border: 2px solid var(--oro); font-weight: 700; font-size: 13px; color: var(--mute); text-transform: uppercase; letter-spacing: .1em; box-shadow: 0 0 50px rgba(242, 181, 68, .3); }
.sello b { display: block; font-size: 34px; letter-spacing: -.03em; color: var(--oro); text-transform: none; }

.sec { padding: 80px 0; border-top: 1px solid var(--borde); }
.sec--dos { background: var(--fondo2); }
.sec__in { max-width: var(--ancho); margin: 0 auto; padding: 0 16px; }
.sec__sub { color: var(--mute); font-size: 18px; max-width: 40em; }
.estrecho { max-width: 780px; }

.pasos { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pasos li { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: var(--radio); padding: 26px; }
.pasos b { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--oro); color: var(--tinta); font-weight: 900; font-size: 20px; margin-bottom: 16px; }
.pasos p { color: var(--mute); margin: 0; }

.rejilla2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 24px; padding: 32px; display: flex; flex-direction: column; align-items: flex-start; }
.lista { list-style: none; padding: 0; margin: 0 0 26px; flex: 1; }
.lista li { padding: 10px 0 10px 30px; position: relative; border-bottom: 1px solid var(--borde); color: #d8d4cd; }
.lista li::before { content: "⚡"; position: absolute; left: 0; top: 9px; }

.reels { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 30px; }
.reel { position: relative; display: flex; flex-direction: column; gap: 12px; min-height: 210px; padding: 20px; border-radius: 18px; border: 1px solid var(--borde); background: linear-gradient(160deg, #1a1c22, var(--tarjeta)); color: var(--texto); text-decoration: none; transition: transform .2s, border-color .2s; }
.reel:hover { transform: translateY(-3px); border-color: rgba(242, 181, 68, .5); }
.reel i { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: rgba(242, 181, 68, .12); font-style: normal; font-size: 26px; }
.reel span { flex: 1; font-weight: 800; font-size: 18px; line-height: 1.25; letter-spacing: -.01em; }
.reel em { font-style: normal; font-weight: 700; font-size: 14px; color: var(--oro); }
.redes { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.redes a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--borde); color: var(--texto); text-decoration: none; font-weight: 700; font-size: 15px; }
.redes a:hover { border-color: var(--oro); }

.sec--contacto { background: radial-gradient(700px 400px at 80% 0, rgba(242, 181, 68, .1), transparent 70%), var(--fondo2); }
.contacto { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.contacto__txt p { color: #d8d4cd; font-size: 18px; }
.contacto__wa a { font-weight: 800; }
.form { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 24px; padding: 26px; display: grid; gap: 16px; }
.pestanas { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 6px; border-radius: 999px; background: var(--fondo); }
.pestanas button { min-height: 44px; border: 0; border-radius: 999px; background: transparent; color: var(--mute); font: 800 15px var(--fuente); cursor: pointer; }
.pestanas button[aria-selected="true"] { background: var(--oro); color: var(--tinta); }
.tipo { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tipo legend { font-weight: 700; font-size: 14px; color: var(--mute); margin-bottom: 8px; }
.tipo label { flex: 1; display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--borde); border-radius: 14px; font-weight: 700; cursor: pointer; }
.tipo label:has(input:checked) { border-color: var(--oro); background: rgba(242, 181, 68, .08); }
.tipo input, .acepto input { accent-color: var(--oro); width: 18px; height: 18px; }
.campo { display: grid; gap: 6px; }
.campo span { font-weight: 700; font-size: 14px; color: var(--mute); }
.campo i { font-style: normal; font-weight: 500; }
.campo input, .campo select, .campo textarea { width: 100%; min-height: 48px; padding: 12px 14px; border-radius: 12px; border: 1px solid rgba(255, 255, 255, .16); background: var(--fondo); color: var(--texto); font: 500 16px var(--fuente); }
.campo textarea { resize: vertical; }
.campo input[aria-invalid="true"] { border-color: var(--rojo); }
.subida__zona { display: grid; gap: 4px; place-items: center; text-align: center; padding: 26px 16px; border: 2px dashed rgba(242, 181, 68, .5); border-radius: 16px; background: rgba(242, 181, 68, .05); cursor: pointer; }
.subida__zona b { font-size: 17px; }
.subida__zona span { color: var(--mute); font-size: 14px; word-break: break-word; }
.subida__zona.lleno { border-style: solid; border-color: var(--oro); }
.subida__zona.arrastre { background: rgba(242, 181, 68, .14); }
.acepto { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--mute); }
.acepto input { flex: none; margin-top: 2px; }
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__estado { margin: 0; min-height: 1.4em; font-weight: 700; font-size: 15px; }
.form__estado.error { color: var(--rojo); }
.form__estado.ok { color: var(--verde); }
.gracias { text-align: center; padding: 30px 10px; }
.gracias b { display: block; font-size: 46px; margin-bottom: 10px; }
.gracias h3 { font-size: 26px; }
.gracias p { color: #d8d4cd; }

details { border-bottom: 1px solid var(--borde); }
summary { cursor: pointer; padding: 20px 36px 20px 0; font-weight: 800; font-size: 18px; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font-size: 26px; color: var(--oro); }
details[open] summary::after { content: "−"; }
details p { color: #d8d4cd; padding-bottom: 12px; }

.pie { border-top: 1px solid var(--borde); padding: 48px 0 110px; }
.pie__in { max-width: var(--ancho); margin: 0 auto; padding: 0 16px; }
.pie p { color: var(--mute); margin-top: 14px; }
.pie__nav { display: flex; flex-wrap: wrap; gap: 20px; }
.pie__nav a { color: var(--mute); }

.wa-flota { position: fixed; right: 18px; bottom: 18px; z-index: 30; display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; background: var(--verde); box-shadow: 0 10px 30px rgba(0, 0, 0, .5); }
.wa-flota svg { width: 32px; height: 32px; fill: #04210f; }

.legal { max-width: 780px; margin: 0 auto; padding: 56px 16px 80px; }
.legal h1 { font-size: clamp(32px, 5vw, 44px); }
.legal h2 { font-size: 22px; margin-top: 1.6em; }
.legal p, .legal li { color: #d8d4cd; }
.pendiente { background: rgba(255, 90, 74, .15); color: var(--rojo); padding: 0 4px; border-radius: 4px; }
.empuja { margin-left: auto; }

@media (max-width: 900px) {
  .heroe { grid-template-columns: 1fr; padding-top: 40px; }
  .heroe__papel { max-width: 360px; margin: 10px auto 30px; }
  .pasos, .rejilla2, .contacto { grid-template-columns: 1fr; }
  .reels { grid-template-columns: repeat(2, 1fr); }
  .cab__nav { display: none; }
  .cab .btn--peq { margin-left: auto; }
}
@media (max-width: 480px) {
  .reels { grid-template-columns: 1fr; gap: 10px; }
  .reel { min-height: 0; flex-direction: row; align-items: center; padding: 14px; }
  .reel span { font-size: 16px; }
  .reel em { display: none; }
  body { font-size: 16px; }
  .heroe__cta .btn { width: 100%; }
  .sec { padding: 60px 0; }
  .tarjeta, .form { padding: 20px; }
  .cab .btn--peq span { display: none; }
  .cab .btn--peq { padding: 0 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .reel { transition: none; }
}

/* artículos (contenido/*.md → scripts/md-a-pagina.py) */
.articulo { max-width: 780px; margin: 0 auto; padding: 48px 16px 80px; }
.articulo h1 { font-size: clamp(32px, 5.4vw, 52px); margin-bottom: .6em; text-wrap: balance; }
.articulo h2 { font-size: clamp(24px, 3.4vw, 32px); margin-top: 1.4em; text-wrap: balance; }
.articulo h3 { margin-top: 1.4em; }
.articulo p, .articulo li { color: #d8d4cd; }
.articulo strong { color: var(--texto); }
.articulo h2 + p, .articulo h1 + p { font-size: 18px; color: var(--texto); border-left: 3px solid var(--oro); padding-left: 16px; }
.articulo ul, .articulo ol { padding-left: 22px; display: grid; gap: 8px; margin: 0 0 1em; }
.articulo li::marker { color: var(--oro); }
.articulo hr { border: 0; border-top: 1px solid var(--borde); margin: 40px 0; }
.articulo em { color: var(--mute); font-size: 14px; }
.tabla { overflow-x: auto; margin: 0 0 1.2em; border: 1px solid var(--borde); border-radius: 14px; }
.tabla table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 15px; }
.tabla th, .tabla td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--borde); vertical-align: top; }
.tabla th { background: var(--tarjeta); color: var(--oro); font-weight: 800; font-size: 13px; letter-spacing: .04em; }
.tabla tr:last-child td { border-bottom: 0; }