/* =========================================================
   Compensa Eléctrico — hoja de estilos
   ========================================================= */

:root {
  --bg: #f5f6f1;
  --surface: #ffffff;
  --surface-2: #eceee6;
  --ink: #12201a;
  --ink-2: #44524b;
  --ink-3: #6b776f;
  --line: #d9ddd2;
  --ev: #0b8a5f;
  --ev-soft: #d7f0e4;
  --ice: #c8641e;
  --ice-soft: #f8e3d3;
  --accent: #c9f03c;
  --focus: #0b6bd3;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(18, 32, 26, .05), 0 8px 24px -12px rgba(18, 32, 26, .18);
  --font-head: "Bricolage Grotesque", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1180px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1512;
    --surface: #151f1a;
    --surface-2: #1c2822;
    --ink: #e9efe9;
    --ink-2: #b4c0b8;
    --ink-3: #8a978f;
    --line: #2a3832;
    --ev: #3fd09a;
    --ev-soft: #173a2c;
    --ice: #f0954f;
    --ice-soft: #3d2618;
    --accent: #c9f03c;
    --focus: #6aaefc;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: var(--ev); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 1.3rem + 3vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem); font-weight: 650; margin-top: 0; }
h3 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1em; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.prose { max-width: 70ch; }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }

.skip-link {
  position: absolute; left: 16px; top: -60px;
  background: var(--ink); color: var(--bg);
  padding: 10px 14px; border-radius: 8px; z-index: 100;
}
.skip-link:focus { top: 12px; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
@supports not (backdrop-filter: blur(1px)) { .site-header { background: var(--bg); } }

.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; letter-spacing: -.02em; }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--ink); display: grid; place-items: center; flex: none; }
.brand-mark svg { width: 18px; height: 18px; }
.brand span em { font-style: normal; color: var(--ev); }

.nav { display: flex; gap: 4px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: .95rem; padding: 8px 12px; border-radius: 8px; }
.nav a:hover { background: var(--surface-2); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--surface-2); font-weight: 600; }


.nav-extra { display: none; }

/* Móvil: índice en carrusel horizontal bajo el logo */
@media (max-width: 860px) {
  .site-header .wrap { flex-wrap: wrap; gap: 0; min-height: 0; padding-top: 10px; }
  .nav {
    order: 2; width: calc(100% + 32px); margin: 8px -16px 0; padding: 0 16px 10px;
    overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x proximity;
    scrollbar-width: none; -webkit-overflow-scrolling: touch; gap: 8px;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 16px, #000 calc(100% - 28px), transparent 100%);
            mask-image: linear-gradient(90deg, transparent 0, #000 16px, #000 calc(100% - 28px), transparent 100%);
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a, .nav .nav-extra {
    display: inline-flex; flex: none; white-space: nowrap; scroll-snap-align: start;
    padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
    background: var(--surface); font-size: .9rem; min-height: 38px; align-items: center;
  }
  .nav a[aria-current="page"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
  #res-tco { scroll-margin-top: 130px; }
}

/* ---------- Hero ---------- */
.hero { padding: 44px 0 20px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; font-weight: 600; color: var(--ink-2); background: var(--surface); border: 1px solid var(--line); padding: 5px 12px 5px 8px; border-radius: 999px; margin-bottom: 18px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ev); box-shadow: 0 0 0 4px var(--ev-soft); }
.hero h1 { max-width: 18ch; }
.hero h1 .hl { background: linear-gradient(transparent 62%, var(--accent) 62%, var(--accent) 92%, transparent 92%); padding: 0 .08em; color: inherit; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero h1 .hl { color: var(--ink); background: none; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: .12em; text-underline-offset: .12em; } }
.lede { font-size: clamp(1.05rem, 1rem + .3vw, 1.2rem); color: var(--ink-2); max-width: 62ch; }

/* ---------- Calculadora ---------- */
.calc { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 24px; align-items: start; margin: 28px 0 12px; }
@media (max-width: 960px) { .calc { grid-template-columns: 1fr; } }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.calc-form { padding: 8px 22px 22px; }
.calc-form fieldset { border: 0; padding: 0; margin: 18px 0 0; }
.calc-form legend { font-family: var(--font-head); font-weight: 650; font-size: 1.05rem; padding: 0; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.legend-num { width: 24px; height: 24px; border-radius: 50%; background: var(--ink); color: var(--bg); font-size: .8rem; display: inline-grid; place-items: center; font-family: var(--font-body); font-weight: 700; flex: none; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
@media (max-width: 520px) { .grid-2 { grid-template-columns: 1fr; } }

.field { display: grid; gap: 5px; align-content: start; }
.field label { font-size: .9rem; font-weight: 600; color: var(--ink); }
.field .hint { font-size: .8rem; color: var(--ink-3); line-height: 1.4; }
.input { position: relative; display: flex; align-items: center; }
.input input, .input select {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 10px 12px; min-height: 44px; appearance: none; -webkit-appearance: none;
  transition: border-color .15s, background .15s;
}
.input select { padding-right: 34px; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.input input:hover, .input select:hover { border-color: var(--ink-3); }
.input input:focus, .input select:focus { border-color: var(--ev); background: var(--surface); outline: none; box-shadow: 0 0 0 3px var(--ev-soft); }
.input .unit { position: absolute; right: 12px; font-size: .85rem; color: var(--ink-3); pointer-events: none; }
.input input.has-unit { padding-right: 64px; }
.input input::-webkit-outer-spin-button, .input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.input input[type=number] { -moz-appearance: textfield; }

.tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; }
.tag-ev { background: var(--ev-soft); color: var(--ev); }
.tag-ice { background: var(--ice-soft); color: var(--ice); }

.range-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; }
input[type=range] { width: 100%; accent-color: var(--ev); min-height: 32px; }
.range-out { font-variant-numeric: tabular-nums; font-weight: 700; min-width: 4.5ch; text-align: right; }

.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; cursor: pointer; padding: 10px 12px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.check input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--ev); flex: none; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: inherit; font-size: .88rem; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer; min-height: 38px; }
.chip:hover { border-color: var(--ink-3); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

details.advanced { margin-top: 18px; border-top: 1px dashed var(--line); padding-top: 14px; }
details.advanced summary { cursor: pointer; font-weight: 600; color: var(--ink-2); font-size: .95rem; }
details.advanced[open] summary { margin-bottom: 6px; }

/* ---------- Resultados ---------- */
.results { padding: 22px; position: sticky; top: 84px; }
@media (max-width: 960px) { .results { position: static; } }
.results-label { font-size: .85rem; font-weight: 600; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.verdict { font-family: var(--font-head); font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem); line-height: 1.15; font-weight: 700; letter-spacing: -.02em; margin-bottom: 8px; }
.verdict .num { color: var(--ev); font-variant-numeric: tabular-nums; }
.verdict.is-ice .num { color: var(--ice); }
.verdict-sub { color: var(--ink-2); margin-bottom: 18px; }

.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 18px; }
@media (max-width: 520px) { .kpis { grid-template-columns: 1fr 1fr; } .kpis .kpi:last-child { grid-column: span 2; } }
.kpi { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px; }
.kpi-v { font-family: var(--font-head); font-size: 1.3rem; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.kpi-l { font-size: .8rem; color: var(--ink-3); line-height: 1.35; }

.chart { margin: 4px 0 14px; }
.chart svg { width: 100%; height: auto; overflow: visible; }
.chart .axis { stroke: var(--line); stroke-width: 1; }
.chart .grid { stroke: var(--line); stroke-width: 1; stroke-dasharray: 2 4; }
.chart .tick { fill: var(--ink-3); font-size: 11px; font-family: var(--font-body); }
.chart .line-ev { fill: none; stroke: var(--ev); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart .line-ice { fill: none; stroke: var(--ice); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart .cross { fill: var(--surface); stroke: var(--ink); stroke-width: 2; }
.chart .cross-label { fill: var(--ink); font-size: 12px; font-weight: 700; font-family: var(--font-body); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: .85rem; color: var(--ink-2); margin-bottom: 6px; }
.legend i { display: inline-block; width: 14px; height: 4px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.legend .l-ev i { background: var(--ev); }
.legend .l-ice i { background: var(--ice); }

table { width: 100%; border-collapse: collapse; font-size: .92rem; font-variant-numeric: tabular-nums; }
th, td { padding: 9px 8px; text-align: right; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); font-weight: 600; }
tfoot td { font-weight: 700; border-bottom: 0; border-top: 2px solid var(--ink); }
.t-ev { color: var(--ev); }
.t-ice { color: var(--ice); }
.table-wrap { overflow-x: auto; }

.note { font-size: .85rem; color: var(--ink-3); margin: 12px 0 0; }

/* ---------- Secciones ---------- */
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { max-width: 62ch; margin-bottom: 26px; }
.section-head p { color: var(--ink-2); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.link-card { display: block; padding: 20px; text-decoration: none; color: var(--ink); transition: transform .18s, border-color .18s; }
.link-card:hover { transform: translateY(-2px); border-color: var(--ink-3); }
.link-card h3 { margin-bottom: .3em; }
.link-card p { color: var(--ink-2); font-size: .95rem; margin: 0; }
.link-card .arrow { display: inline-block; margin-top: 12px; color: var(--ev); font-weight: 600; font-size: .92rem; }
.link-card .ico { width: 40px; height: 40px; border-radius: 10px; background: var(--ev-soft); color: var(--ev); display: grid; place-items: center; margin-bottom: 14px; }
.link-card .ico svg { width: 22px; height: 22px; }

.steps { counter-reset: s; display: grid; gap: 14px; padding: 0; list-style: none; }
.steps li { counter-increment: s; position: relative; padding: 16px 16px 16px 58px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #12201a; font-weight: 700; display: grid; place-items: center; font-size: .9rem; }

.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 16px 28px 16px 0; font-weight: 650; list-style: none; position: relative; font-family: var(--font-head); font-size: 1.05rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 1.5rem; color: var(--ink-3); font-weight: 400; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding-bottom: 16px; color: var(--ink-2); }

.callout { border-left: 4px solid var(--accent); background: var(--surface); padding: 14px 18px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.4em 0; }
.callout.warn { border-left-color: var(--ice); }
.callout p:last-child { margin-bottom: 0; }

.updated { display: inline-flex; gap: 6px; align-items: center; font-size: .85rem; color: var(--ink-3); }

.breadcrumbs { font-size: .85rem; color: var(--ink-3); margin-bottom: 14px; }
.breadcrumbs a { color: var(--ink-3); }

/* Hueco para anuncios: vacío hasta que AdSense lo rellene */
.ad-slot { margin: 28px auto; text-align: center; min-height: 0; }
.ad-slot:empty { display: none; }

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 32px; margin-top: 40px; font-size: .92rem; color: var(--ink-2); background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--font-head); color: var(--ink); margin: 0 0 10px; font-size: 1rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }
.footer-legal { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 18px; font-size: .82rem; color: var(--ink-3); }

/* ---------- Animación suave de entrada ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.hero > .wrap > * { animation: rise .5s both cubic-bezier(.2, .7, .2, 1); }
.hero > .wrap > *:nth-child(2) { animation-delay: .05s; }
.hero > .wrap > *:nth-child(3) { animation-delay: .1s; }
.flash { animation: flash .5s ease; }
@keyframes flash { 0% { opacity: .35; } 100% { opacity: 1; } }

@media print {
  .site-header, .site-footer, .ad-slot, .calc-form { display: none; }
  .calc { grid-template-columns: 1fr; }
}

/* Datos pendientes de rellenar (aviso legal, contacto…) */
.todo { background: var(--accent); color: #12201a; padding: 0 .3em; border-radius: 4px; font-weight: 600; }

/* Atajo al resultado en móvil */
.jump { display: none; }
@media (max-width: 960px) {
  .jump { display: block; position: fixed; left: 16px; right: 16px; bottom: 14px; z-index: 40; text-align: center; background: var(--ink); color: var(--bg); text-decoration: none; padding: 13px 16px; border-radius: 999px; box-shadow: var(--shadow); font-size: .95rem; transition: opacity .2s, transform .2s; }
  .jump strong { color: inherit; font-weight: 800; }
  .jump.is-hidden { opacity: 0; transform: translateY(20px); pointer-events: none; }
}