/* =============================================================
   ElectroBici.es — hoja de estilos única
   1. Tokens  2. Reset  3. Utilidades  4. Tipografía  5. Componentes
   6. Secciones  7. Efectos  8. Responsive  9. Reduced-motion
   ============================================================= */

/* 1. Tokens ---------------------------------------------------- */
:root {
  --bg: #f7f8f4;
  --bg-alt: #ffffff;
  --ink: #12160f;
  --ink-soft: #4b5245;
  --line: #e2e5da;
  --accent: #7ac142;
  --accent-strong: #5da22b;
  --accent-ink: #0c1608;
  --amber: #e8912b;
  --red: #d3452f;
  --card: #ffffff;
  --card-shadow: 0 1px 2px rgba(18,22,15,.06), 0 12px 32px -16px rgba(18,22,15,.18);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1240px;
  --serif: "Fraunces", ui-serif, Georgia, serif;
  --sans: "Manrope", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --bg: #10130d;
  --bg-alt: #171b12;
  --ink: #f1f4ea;
  --ink-soft: #aab2a0;
  --line: #262c1e;
  --card: #171b12;
  --card-shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px -16px rgba(0,0,0,.6);
  --accent-ink: #0c1608;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10130d;
    --bg-alt: #171b12;
    --ink: #f1f4ea;
    --ink-soft: #aab2a0;
    --line: #262c1e;
    --card: #171b12;
    --card-shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px -16px rgba(0,0,0,.6);
  }
}

/* 2. Reset ------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; overflow-x: clip; scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip; overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; letter-spacing: -0.01em; font-family: var(--serif); font-weight: 600; }
ul, ol { padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 3px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* 3. Utilidades --------------------------------------------------*/
.container { max-width: var(--maxw); margin-inline: auto; padding-inline: 1.25rem; }
.skip-link {
  position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem;
  background: var(--ink); color: var(--bg); z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.section { padding-block: clamp(3rem, 6vw, 6rem); }
.section-head { max-width: 60ch; margin-bottom: 2.5rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .4rem; font-family: var(--mono);
  font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-strong);
  margin-bottom: .75rem;
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.muted { color: var(--ink-soft); }
.hidden { display: none !important; }
.pill {
  display: inline-flex; align-items: center; gap: .35rem; padding: .3rem .7rem;
  border-radius: 999px; background: var(--bg-alt); border: 1px solid var(--line);
  font-size: .78rem; font-weight: 600; color: var(--ink-soft);
}

/* 4. Tipografía ---------------------------------------------------*/
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--ink-soft); max-width: 62ch; }

/* 5. Componentes ---------------------------------------------------*/
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.5rem; border-radius: 999px; font-weight: 700; font-size: .95rem;
  transition: transform .25s var(--ease-out), background .25s var(--ease-out), box-shadow .25s var(--ease-out);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 20px -8px rgba(122,193,66,.55); }
.btn-primary:hover { background: var(--accent-strong); transform: translateY(-2px); }
.btn-ghost { background: transparent; border: 1.5px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent-strong); color: var(--accent-strong); }
.btn-sm { padding: .55rem 1.05rem; font-size: .83rem; }
.btn-block { width: 100%; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--card-shadow); overflow: hidden;
}

/* Header / nav */
.site-header {
  position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding-block: .9rem; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .55rem; font-family: var(--serif); font-weight: 700; font-size: 1.2rem; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; background: var(--accent);
  display: grid; place-items: center; color: var(--accent-ink); flex: none;
}
.nav-links { display: none; align-items: center; gap: 1.6rem; font-weight: 600; font-size: .93rem; }
.nav-links a { color: var(--ink-soft); transition: color .2s var(--ease-out); }
.nav-links a:hover, .nav-links a.is-active { color: var(--ink); }
.nav-links a.nav-cta, .nav-links a.nav-cta:hover {
  color: var(--accent-ink); background: var(--accent); padding: .55rem 1.1rem; border-radius: 999px;
}
.nav-toggle { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); }
.nav-toggle svg { width: 20px; height: 20px; }
.mobile-menu {
  display: none; flex-direction: column; gap: .2rem; padding: .5rem 1.25rem 1.25rem; border-top: 1px solid var(--line);
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a { padding: .7rem 0; font-weight: 600; border-bottom: 1px solid var(--line); }
.mobile-menu a:last-child { border-bottom: none; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 3rem 2rem; background: var(--bg-alt); }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1.3fr 1fr 1fr; margin-bottom: 2rem; }
.footer-grid h4 { font-family: var(--sans); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: .8rem; color: var(--ink-soft); }
.footer-grid a { display: block; padding-block: .35rem; color: var(--ink-soft); font-size: .92rem; }
.footer-grid a:hover { color: var(--accent-strong); }
.footer-disclosure {
  font-size: .82rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 1.5rem; line-height: 1.7;
}
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; font-size: .82rem; color: var(--ink-soft); }

/* Hero */
.hero { padding-block: clamp(3rem, 8vw, 6.5rem) clamp(2.5rem, 6vw, 4rem); position: relative; overflow: hidden; }
.hero-halo {
  position: absolute; inset: -40% -10% -60% -10%; z-index: -1;
  background: radial-gradient(45% 45% at 70% 20%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 70%);
  filter: blur(60px); pointer-events: none;
}
.hero-grid { display: grid; gap: 2.5rem; align-items: center; }
.hero-title { max-width: 16ch; margin-bottom: 1.1rem; }
.hero-title em { color: var(--accent-strong); font-style: normal; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.hero-stats { display: flex; gap: 2rem; margin-top: 2.2rem; flex-wrap: wrap; }
.hero-stat b { display: block; font-family: var(--serif); font-size: 1.6rem; }
.hero-stat span { font-size: .8rem; color: var(--ink-soft); }
.hero-visual { position: relative; }
.hero-visual .card { padding: 1.4rem; }

/* Product grid + card */
.grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); }
.product-card { display: flex; flex-direction: column; transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out); }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -20px rgba(18,22,15,.28); }
.pc-media { position: relative; aspect-ratio: 4/3; background: var(--bg-alt); overflow: hidden; }
.pc-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease-out); }
.product-card:hover .pc-media img { transform: scale(1.06); }
.pc-badge {
  position: absolute; top: .7rem; left: .7rem; background: var(--accent); color: var(--accent-ink);
  font-size: .72rem; font-weight: 700; padding: .3rem .6rem; border-radius: 999px;
}
.pc-badge.offer { background: var(--red); color: #fff; }
.pc-compare {
  position: absolute; top: .7rem; right: .7rem; width: 34px; height: 34px; border-radius: 50%;
  background: var(--card); border: 1px solid var(--line); display: grid; place-items: center;
  transition: background .2s, border-color .2s, transform .2s;
}
.pc-compare svg { width: 16px; height: 16px; flex: none; }
.pc-compare.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.pc-body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.pc-cat { font-size: .74rem; color: var(--accent-strong); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.pc-title { font-size: 1.05rem; line-height: 1.25; }
.pc-title a { color: var(--ink); }
.pc-rating { display: flex; align-items: center; gap: .4rem; font-size: .84rem; color: var(--ink-soft); }
.pc-rating .stars { color: var(--amber); font-family: var(--mono); letter-spacing: 1px; }
.pc-specs { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .2rem; }
.pc-specs span {
  font-size: .72rem; background: var(--bg-alt); border: 1px solid var(--line); padding: .25rem .55rem; border-radius: 999px; color: var(--ink-soft);
}
.pc-price { margin-top: auto; padding-top: .6rem; display: flex; align-items: baseline; gap: .5rem; }
.pc-price .now { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; }
.pc-price .was { font-size: .85rem; color: var(--ink-soft); text-decoration: line-through; }
.pc-cta { margin-top: .8rem; }

/* Section: cómo elegimos */
.trust-grid { display: grid; gap: 1.4rem; grid-template-columns: repeat(auto-fit, minmax(210px,1fr)); }
.trust-card { padding: 1.4rem; }
.trust-card .ico { width: 42px; height: 42px; border-radius: 12px; background: color-mix(in srgb, var(--accent) 18%, transparent); display: grid; place-items: center; margin-bottom: .9rem; color: var(--accent-strong); }
.trust-card .ico svg { width: 22px; height: 22px; }
.trust-card h3 { font-size: 1.05rem; margin-bottom: .4rem; }
.trust-card p { font-size: .9rem; color: var(--ink-soft); }

/* Category entry cards */
.cat-grid { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); }
.cat-card {
  position: relative; padding: 1.6rem; min-height: 140px; display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, var(--bg-alt)), var(--bg-alt));
}
.cat-card h3 { font-size: 1.15rem; }
.cat-card span { font-size: .82rem; color: var(--ink-soft); }
.cat-card .arrow { position: absolute; top: 1.2rem; right: 1.2rem; opacity: .5; transition: transform .25s var(--ease-out), opacity .25s; }
.cat-card:hover .arrow { transform: translate(3px,-3px); opacity: 1; }

/* Ficha (product page) */
.ficha-top { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
.gallery-main { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; background: var(--bg-alt); border: 1px solid var(--line); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: .6rem; margin-top: .7rem; overflow-x: auto; overflow-y: visible; padding-bottom: .3rem; }
.gallery-thumbs button { flex: none; width: 68px; height: 68px; border-radius: 10px; overflow: hidden; border: 2px solid transparent; opacity: .65; transition: opacity .2s, border-color .2s; }
.gallery-thumbs button.is-active { opacity: 1; border-color: var(--accent-strong); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.ficha-info .brand-line { font-size: .85rem; color: var(--accent-strong); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .4rem; }
.ficha-info h1 { margin-bottom: .6rem; }
.ficha-rating { display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem; font-size: .92rem; }
.ficha-rating .stars { color: var(--amber); font-family: var(--mono); }
.ficha-price-box { display: flex; align-items: baseline; gap: .7rem; margin-bottom: .3rem; }
.ficha-price-box .now { font-family: var(--serif); font-size: 2.1rem; font-weight: 700; }
.ficha-price-box .was { color: var(--ink-soft); text-decoration: line-through; font-size: 1.05rem; }
.ficha-price-note { font-size: .78rem; color: var(--ink-soft); margin-bottom: 1.3rem; }
.ficha-ideal { background: color-mix(in srgb, var(--accent) 12%, var(--bg-alt)); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .9rem 1.1rem; font-size: .9rem; margin: 1.2rem 0; }
.ficha-ideal b { color: var(--accent-strong); }
.ficha-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.2rem; }

/* Radar chart */
.radar-wrap { display: flex; flex-direction: column; align-items: center; gap: .8rem; }
.radar-wrap canvas { width: 100%; max-width: 380px; height: auto; }
.radar-legend { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; font-size: .78rem; color: var(--ink-soft); }
.radar-legend .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: .3rem; }

/* Spec table */
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th { text-align: left; padding: .9rem 1rem .4rem; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--accent-strong); }
.spec-table td { padding: .65rem 1rem; border-top: 1px solid var(--line); font-size: .92rem; }
.spec-table td:first-child { color: var(--ink-soft); width: 45%; }
.spec-table td:last-child { font-weight: 600; }

/* pros/cons */
.pc-columns { display: grid; gap: 1.2rem; grid-template-columns: 1fr 1fr; }
.pc-col { padding: 1.2rem; }
.pc-col h3 { display: flex; align-items: center; gap: .5rem; font-size: 1rem; margin-bottom: .7rem; }
.pc-col h3 svg { width: 1.15em; height: 1.15em; flex: none; }
.pc-col.pros h3 { color: var(--accent-strong); }
.pc-col.cons h3 { color: var(--red); }
.pc-col li { padding: .35rem 0; font-size: .9rem; display: flex; gap: .5rem; }
.pc-col li::before { content: "—"; color: var(--ink-soft); }

.editorial-body { max-width: 72ch; }
.editorial-body p { margin-bottom: 1rem; color: var(--ink-soft); }
.editorial-body p:first-child { font-size: 1.05rem; color: var(--ink); }

.review-summary { padding: 1.3rem; }
.review-summary .stars-big { font-size: 1.6rem; color: var(--amber); font-family: var(--mono); }

.similar-strip { display: flex; gap: 1.2rem; overflow-x: auto; overflow-y: visible; padding-block: .3rem 1rem; }
.similar-strip .product-card { flex: none; width: 260px; }

.disclosure-box {
  font-size: .85rem; color: var(--ink-soft); background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 1rem 1.2rem; line-height: 1.7;
}

/* Comparador */
.compare-picker { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; margin-bottom: 2rem; }
.compare-search { position: relative; flex: 1; min-width: 220px; }
.compare-search input {
  width: 100%; padding: .8rem 1.1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit;
}
.compare-results { position: absolute; top: calc(100% + .5rem); left: 0; right: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--card-shadow); max-height: 280px; overflow-y: auto; z-index: 20; }
.compare-results button { display: flex; align-items: center; gap: .7rem; width: 100%; padding: .6rem .9rem; text-align: left; }
.compare-results button:hover { background: var(--bg-alt); }
.compare-results img { width: 36px; height: 36px; border-radius: 6px; object-fit: cover; flex: none; }
.compare-slots { display: flex; gap: .7rem; flex-wrap: wrap; }
.compare-slot {
  display: flex; align-items: center; gap: .5rem; padding: .4rem .5rem .4rem .4rem; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line); font-size: .85rem; font-weight: 600;
}
.compare-slot img { width: 30px; height: 30px; border-radius: 50%; object-fit: cover; }
.compare-slot button { width: 20px; height: 20px; border-radius: 50%; background: var(--bg-alt); display: grid; place-items: center; font-size: .7rem; }

.compare-empty { text-align: center; padding: 4rem 1rem; color: var(--ink-soft); }
.compare-table-wrap { overflow-x: auto; }
.compare-table { min-width: 640px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: .75rem 1.1rem; border-top: 1px solid var(--line); font-size: .88rem; white-space: nowrap; }
.compare-table thead th { position: sticky; top: 0; background: var(--bg); text-align: center; white-space: normal; }
.compare-table td:first-child, .compare-table th:first-child { text-align: left; position: sticky; left: 0; background: var(--bg); color: var(--ink-soft); white-space: normal; min-width: 160px; }
.compare-table td { text-align: center; }
.compare-table td.best { background: color-mix(in srgb, var(--accent) 16%, transparent); font-weight: 700; color: var(--accent-strong); }
.compare-col-head { text-align: center; padding-top: 1.2rem !important; }
.compare-col-head img { width: 80px; height: 80px; object-fit: cover; border-radius: 10px; margin: 0 auto .5rem; }
.compare-col-head .name { font-weight: 700; font-size: .88rem; display: block; margin-bottom: .5rem; }
.compare-radar-overlay { display: flex; justify-content: center; margin-bottom: 2.5rem; }

/* Filtros */
.filter-bar { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }
.filter-bar select, .filter-bar button {
  padding: .6rem 1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--card); font: inherit; font-size: .85rem;
}
.filter-bar button.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }

/* Guide / blog */
.guide-body { max-width: 74ch; margin-inline: auto; }
.guide-body h2 { margin-top: 2.2rem; margin-bottom: .8rem; }
.guide-body p { color: var(--ink-soft); margin-bottom: 1rem; }
.guide-toc { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1.2rem 1.4rem; margin-bottom: 2rem; }
.guide-toc a { display: block; padding: .3rem 0; color: var(--accent-strong); font-weight: 600; font-size: .9rem; }
.guide-pick { display: flex; gap: 1rem; padding: 1.2rem; align-items: center; margin-bottom: 1.4rem; }
.guide-pick img { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; flex: none; }
.guide-pick .rank { font-family: var(--serif); font-size: 1.4rem; color: var(--accent-strong); flex: none; width: 2.4rem; }

/* Legal pages */
.legal-body { max-width: 72ch; margin-inline: auto; }
.legal-body h2 { margin-top: 2rem; margin-bottom: .6rem; font-size: 1.25rem; }
.legal-body p, .legal-body li { color: var(--ink-soft); margin-bottom: .7rem; }
.legal-body li { padding-left: 1rem; position: relative; }
.legal-body li::before { content: "•"; position: absolute; left: 0; color: var(--accent-strong); }

/* Ofertas badge banner */
.offer-strip { background: linear-gradient(90deg, var(--accent), var(--accent-strong)); color: var(--accent-ink); padding: .6rem 0; text-align: center; font-size: .85rem; font-weight: 700; }

/* Empty state */
.empty-state { text-align: center; padding: 3.5rem 1rem; color: var(--ink-soft); }

/* 8. Responsive ---------------------------------------------------*/
@media (min-width: 540px) {
  .pc-columns { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .hero-stats { gap: 3rem; }
}
@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
  .hero-grid { grid-template-columns: 1.1fr .9fr; }
  .ficha-top { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1280px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
}

/* 9. Reduced-motion (solo lo intrusivo) ----------------------------*/
@media (prefers-reduced-motion: reduce) {
  .hero-halo { animation: none; }
}