/* ZONACARS Sound Lab — hoja de estilos
   Tokens: negro de la marca, blanco del bloque "CARS" y el azul de "SOUND LAB." */
:root {
  --bg: #000;
  --surface: #121315;
  --surface-2: #1c1d20;
  --line: rgba(255, 255, 255, .12);
  --text: #f5f5f7;
  --muted: #a1a1a6;          /* 8.1:1 sobre #000 */
  --accent: #1ea7e1;         /* azul del logo — 7.6:1 sobre #000 */
  --accent-hi: #4fc0f0;
  --on-accent: #001018;
  --light-bg: #f5f5f7;
  --light-text: #1d1d1f;
  --light-muted: #56565b;    /* 6.6:1 sobre #f5f5f7 */
  --accent-ink: #0a6c9c;     /* 5.4:1 sobre #f5f5f7 */
  --wa: #25d366;

  --radius: 22px;
  --radius-sm: 14px;
  --maxw: 1120px;
  --gutter: clamp(16px, 5vw, 40px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;   /* 17 px */
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid var(--accent-hi); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--on-accent); padding: 10px 16px; border-radius: 10px; font-weight: 600;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Tipografía ---------- */
h1, h2, h3 { margin: 0; letter-spacing: -.022em; line-height: 1.07; font-weight: 700; }
.display { font-size: clamp(2.75rem, 8vw, 5.5rem); letter-spacing: -.035em; line-height: 1.02; }
.h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
.h3 { font-size: 1.375rem; line-height: 1.2; letter-spacing: -.012em; }
.lead { font-size: clamp(1.1875rem, 2.2vw, 1.5rem); line-height: 1.4; color: var(--muted); font-weight: 500; max-width: 38ch; }
.eyebrow { font-size: .9375rem; font-weight: 600; color: var(--accent); letter-spacing: .01em; margin: 0 0 12px; }
.muted { color: var(--muted); }

/* ---------- Botones (mín. 44 px de alto) ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 24px; border-radius: 999px;
  font: 600 1.0625rem/1 var(--font); border: 0; cursor: pointer;
  transition: transform .15s ease, background-color .2s ease, color .2s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hi); }
.btn-ghost { color: var(--accent); background: transparent; box-shadow: inset 0 0 0 1.5px currentColor; }
.btn-ghost:hover { background: rgba(30, 167, 225, .1); }
.btn svg { width: 20px; height: 20px; flex: none; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  transition: background-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled,
.nav-open .site-header {
  background: rgba(0, 0, 0, .72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 1px 0 var(--line);
}
@media (prefers-reduced-transparency: reduce) {
  .site-header.scrolled, .nav-open .site-header { background: #000; -webkit-backdrop-filter: none; backdrop-filter: none; }
}
.header-row { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: flex; align-items: center; }
.brand img { height: 34px; width: auto; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; align-items: center; }
.site-nav a:not(.btn) {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px;
  color: var(--text); font-size: .9375rem; opacity: .85;
}
.site-nav a:not(.btn):hover { opacity: 1; text-decoration: none; }
.site-nav .btn { min-height: 40px; padding: 8px 18px; font-size: .9375rem; margin-left: 8px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--text); cursor: pointer; border-radius: 10px;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: currentColor; border-radius: 2px; position: relative; margin: 0 auto; transition: transform .25s ease;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed; inset: 60px 0 auto 0; background: #000; border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 24px; display: none;
  }
  .nav-open .site-nav { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav a:not(.btn) { font-size: 1.25rem; font-weight: 600; min-height: 52px; border-bottom: 1px solid var(--line); padding: 0; opacity: 1; }
  .site-nav .btn { margin: 20px 0 0; width: 100%; min-height: 50px; font-size: 1.0625rem; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(48px, 9vw, 112px) 0 clamp(56px, 8vw, 96px); overflow: hidden; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; z-index: -1; inset: -20% -30% auto auto; width: 80vw; height: 80vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(30, 167, 225, .32), transparent 70%);
}
.hero-logo { width: min(420px, 82vw); height: auto; margin-bottom: 36px; }
.hero h1 { max-width: 12ch; }
.hero .lead { margin: 20px 0 32px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 18px; font-size: .9375rem; color: var(--muted); }

/* Firma: el ecualizador entre los paréntesis ((( ))) del logo */
.eq {
  margin-top: clamp(48px, 7vw, 80px);
  display: flex; align-items: center; justify-content: center; gap: clamp(10px, 2vw, 22px);
  color: var(--accent);
}
.eq-arc { font-size: clamp(3rem, 9vw, 6rem); font-weight: 300; line-height: 1; letter-spacing: -.12em; opacity: .9; }
.eq-arc:last-child { letter-spacing: -.12em; padding-right: .12em; }
.eq-bars { display: flex; align-items: center; gap: clamp(3px, .7vw, 6px); height: clamp(90px, 16vw, 160px); }
.eq-bars i {
  display: block; width: clamp(4px, .8vw, 8px); height: var(--h, 50%); border-radius: 99px;
  background: linear-gradient(180deg, var(--accent-hi), var(--accent));
  animation: eq 1.4s ease-in-out infinite alternate; animation-delay: var(--d, 0s); transform-origin: center;
}
.eq-bars i:nth-child(5n) { background: #f5f5f7; }
@keyframes eq { from { transform: scaleY(.35); } to { transform: scaleY(1); } }
@media (prefers-reduced-motion: reduce) { .eq-bars i { animation: none; } }
@media (max-width: 520px) { .eq-bars i:nth-child(n+19) { display: none; } }

/* ---------- Secciones ---------- */
.section { padding: clamp(72px, 11vw, 140px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 64px); }
.section-head p { margin: 16px 0 0; }
.light { background: var(--light-bg); color: var(--light-text); color-scheme: light; }
.light .eyebrow { color: var(--accent-ink); }
.light .lead, .light .muted { color: var(--light-muted); }
.light a { color: var(--accent-ink); }

/* Servicios: mosaico */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.tile {
  grid-column: span 2; background: #fff; border-radius: var(--radius); padding: 28px;
  display: flex; flex-direction: column; gap: 10px; min-height: 260px; position: relative; overflow: hidden;
}
.tile.wide { grid-column: span 3; }
.tile.hero-tile { grid-column: span 6; min-height: 320px; background: #000; color: var(--text); }
.tile.hero-tile .muted { color: var(--muted); }
.tile.hero-tile .tile-cta { color: var(--accent); }
.tile-icon { width: 44px; height: 44px; color: var(--accent-ink); margin-bottom: 6px; }
.hero-tile .tile-icon { color: var(--accent); }
.tile p { margin: 0; }
.tile ul { margin: 4px 0 0; padding-left: 1.1em; color: var(--light-muted); }
.hero-tile ul { color: var(--muted); }
.tile-cta { margin-top: auto; padding-top: 12px; font-weight: 600; display: inline-flex; align-items: center; min-height: 44px; align-self: flex-start; }
.tile-cta::after { content: " ›"; margin-left: 4px; }
.tile .tag { position: absolute; top: 24px; right: 24px; font-size: .8125rem; font-weight: 600; color: var(--accent-ink); background: rgba(10, 108, 156, .1); padding: 4px 10px; border-radius: 99px; }
.hero-tile-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; height: 100%; }
.speaker { width: min(280px, 100%); margin: 0 auto; aspect-ratio: 1; border-radius: 50%; overflow: hidden; box-shadow: 0 0 0 1px var(--line), 0 0 80px rgba(30, 167, 225, .35); }
.speaker img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) {
  .tile, .tile.wide { grid-column: span 3; }
  .tile.hero-tile { grid-column: span 6; }
}
@media (max-width: 620px) {
  .bento { grid-template-columns: 1fr; }
  .tile, .tile.wide, .tile.hero-tile { grid-column: auto; min-height: 0; }
  .hero-tile-grid { grid-template-columns: 1fr; }
  .speaker { width: 180px; }
}

/* Por qué */
.why { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.why-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.why-card svg { width: 32px; height: 32px; color: var(--accent); margin-bottom: 16px; }
.why-card p { margin: 8px 0 0; color: var(--muted); }

/* Proceso (secuencia real: los números informan el orden) */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.steps li { counter-increment: step; padding-top: 20px; border-top: 2px solid var(--line); }
.steps li::before { content: "Paso " counter(step); display: block; font-size: .875rem; font-weight: 600; color: var(--accent); margin-bottom: 8px; }
.steps p { margin: 8px 0 0; color: var(--muted); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* Instagram */
.ig {
  border-radius: var(--radius); padding: clamp(32px, 6vw, 64px);
  background: radial-gradient(120% 140% at 100% 0%, rgba(30, 167, 225, .35), transparent 55%), var(--surface);
  border: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center;
}
.ig p { margin: 12px 0 0; color: var(--muted); }
@media (max-width: 720px) { .ig { grid-template-columns: 1fr; } }

/* Formulario */
.quote-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
@media (max-width: 860px) { .quote-grid { grid-template-columns: 1fr; } }
.contact-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 4px; }
.contact-list a { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; font-weight: 600; }
.contact-list svg { width: 22px; height: 22px; }
form { background: #fff; border-radius: var(--radius); padding: clamp(22px, 4vw, 36px); display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
label, legend { font-weight: 600; font-size: .9375rem; }
.hint { font-weight: 400; color: var(--light-muted); }
input[type=text], input[type=tel], textarea, select {
  width: 100%; font: 400 1.0625rem/1.4 var(--font); color: var(--light-text);
  background: #f5f5f7; border: 1px solid #d2d2d7; border-radius: 12px; padding: 13px 14px; min-height: 50px;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent-ink); box-shadow: 0 0 0 4px rgba(10, 108, 156, .18); }
textarea { min-height: 110px; resize: vertical; }
fieldset { border: 0; padding: 0; margin: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-flex; align-items: center; min-height: 40px; padding: 8px 14px; border-radius: 99px;
  border: 1px solid #d2d2d7; background: #f5f5f7; font-size: .9375rem; cursor: pointer; user-select: none;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.chip input:checked + span { background: var(--light-text); color: #fff; border-color: var(--light-text); }
.chip input:checked + span::before { content: "✓"; margin-right: 6px; }
.chip input:focus-visible + span { outline: 3px solid var(--accent-ink); outline-offset: 2px; }
.check { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; font-weight: 400; font-size: .9375rem; color: var(--light-muted); }
.check input { width: 22px; height: 22px; margin: 1px 0 0; accent-color: var(--accent-ink); }
#form-status { min-height: 1.5em; margin: 0; font-size: .9375rem; color: var(--accent-ink); }
form .btn { width: 100%; }
.btn-wa { background: var(--light-text); color: #fff; }
.btn-wa:hover { background: #000; }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  min-height: 64px; padding: 16px 0; font-size: 1.1875rem; font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.75rem; font-weight: 300; color: var(--accent); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 20px; color: var(--muted); max-width: 64ch; }

/* CTA final */
.final { text-align: center; }
.final .lead { margin: 16px auto 32px; }
.final .hero-ctas { justify-content: center; }

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 calc(40px + env(safe-area-inset-bottom)); font-size: .875rem; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-footer h2 { font-size: .875rem; color: var(--text); margin-bottom: 12px; letter-spacing: 0; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.site-footer a { color: var(--muted); display: inline-flex; min-height: 36px; align-items: center; }
.site-footer a:hover { color: var(--text); }
.site-footer button.linklike { background: none; border: 0; padding: 0; font: inherit; color: var(--muted); cursor: pointer; min-height: 36px; }
.site-footer button.linklike:hover { color: var(--text); text-decoration: underline; }
.footer-legal { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- WhatsApp flotante ---------- */
.wa-float {
  position: fixed; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); z-index: 60;
  width: 60px; height: 60px; border-radius: 50%; background: var(--wa); color: #fff;
  display: grid; place-items: center; box-shadow: 0 10px 30px rgba(0, 0, 0, .45); transition: transform .2s ease;
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 32px; height: 32px; }

/* ---------- Banner de cookies ---------- */
.cookie {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 80; max-width: 560px; margin-left: auto; margin-right: auto;
  background: rgba(28, 29, 32, .94); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
  font-size: .9375rem;
}
.cookie[hidden] { display: none; }
.cookie p { margin: 0 0 14px; color: var(--muted); }
.cookie strong { color: var(--text); }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cookie .btn { min-height: 44px; padding: 10px 18px; font-size: .9375rem; flex: 1 1 auto; }
.cookie details { margin: 0 0 14px; }
.cookie summary { cursor: pointer; color: var(--accent); min-height: 32px; }
.cookie label { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin-top: 10px; color: var(--muted); }
.cookie label input { width: 20px; height: 20px; margin-top: 1px; accent-color: var(--accent); flex: none; }
@media (prefers-reduced-transparency: reduce) { .cookie { background: var(--surface-2); } }

/* ---------- Aparición ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Páginas legales ---------- */
.legal { padding: clamp(40px, 7vw, 80px) 0 96px; }
.legal article { max-width: 760px; }
.legal h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 8px; }
.legal h2 { font-size: 1.375rem; margin: 40px 0 12px; letter-spacing: -.01em; }
.legal p, .legal li { color: #d2d2d7; }
.legal ul { padding-left: 1.2em; }
.legal .updated { color: var(--muted); margin-bottom: 32px; }
.legal .notice { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; color: var(--muted); }
.legal table { width: 100%; border-collapse: collapse; font-size: .9375rem; margin: 12px 0; }
.legal th, .legal td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; color: #d2d2d7; }
.legal th { color: var(--text); }
.table-scroll { overflow-x: auto; }
.legal mark { background: #ffd60a; color: #000; padding: 0 4px; border-radius: 4px; font-weight: 600; }
.legal code { font-size: .875em; }
/* En inicio el logo grande del hero ya identifica la marca: el de la cabecera aparece al hacer scroll */
.home .brand { transition: opacity .3s ease; }
.home .site-header:not(.scrolled) .brand { opacity: 0; pointer-events: none; }
.home.nav-open .site-header .brand { opacity: 1; pointer-events: auto; }

/* ---------- Escáner ---------- */
.scanner { background: linear-gradient(180deg, #000 0%, #06141c 100%); }
.scanner-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
@media (max-width: 860px) { .scanner-grid { grid-template-columns: 1fr; } }
.scanner .lead { margin: 16px 0 24px; }
.badge-new { display: inline-block; background: var(--accent); color: var(--on-accent); font-size: .75rem; font-weight: 700; padding: 3px 9px; border-radius: 99px; margin-right: 8px; vertical-align: 1px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 30px; color: #d2d2d7; }
.checks li::before { content: ""; position: absolute; left: 0; top: .3em; width: 18px; height: 18px; border-radius: 50%; background: rgba(30, 167, 225, .18); }
.checks li::after { content: ""; position: absolute; left: 6px; top: calc(.3em + 4px); width: 5px; height: 9px; border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg); }

.scan-screen {
  margin: 0; background: #0b0f12; border: 1px solid rgba(30, 167, 225, .35); border-radius: 26px; padding: 22px;
  box-shadow: 0 0 0 8px #15191d, 0 30px 80px rgba(30, 167, 225, .18);
  font-variant-numeric: tabular-nums;
}
.scan-top { display: flex; align-items: center; gap: 10px; font-size: .875rem; color: var(--muted); padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.scan-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--wa); box-shadow: 0 0 10px var(--wa); }
.scan-ok { margin-left: auto; color: var(--wa); font-weight: 600; }
.scan-row { display: flex; gap: 14px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: .9375rem; }
.scan-code { font-family: "SF Mono", ui-monospace, Menlo, monospace; font-weight: 600; font-size: .875rem; padding: 4px 8px; border-radius: 8px; min-width: 64px; text-align: center; }
.scan-code.warn { background: rgba(255, 159, 10, .16); color: #ffb340; }
.scan-code.ok { background: rgba(37, 211, 102, .14); color: #4ade80; }
.scan-live { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.scan-live div { background: #12181d; border-radius: 14px; padding: 12px; }
.scan-live small { display: block; color: var(--muted); font-size: .75rem; }
.scan-live strong { font-size: 1.25rem; color: var(--accent-hi); }
.scan-screen figcaption { margin-top: 12px; font-size: .75rem; color: var(--muted); text-align: right; }

.brands { margin-top: clamp(56px, 8vw, 96px); text-align: center; }
.brands p { margin: 8px 0 28px; }
.brand-list { list-style: none; padding: 0; margin: 0 auto; max-width: 1040px; display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 12px; }
.brand-list li {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  aspect-ratio: 1.15; padding: 14px 10px; border-radius: 18px; min-width: 0;
  background: rgba(255, 255, 255, .035); border: 1px solid var(--line);
  transition: background-color .25s ease, border-color .25s ease, transform .25s ease;
}
.brand-list img { width: 78%; height: 40px; object-fit: contain; filter: brightness(0) invert(1); opacity: .82; transition: opacity .25s ease; }
.brand-list span { font-size: .75rem; color: var(--muted); }
.brand-list li:hover { background: rgba(30, 167, 225, .1); border-color: rgba(30, 167, 225, .45); transform: translateY(-2px); }
.brand-list li:hover img { opacity: 1; }
@media (prefers-reduced-motion: reduce) { .brand-list li:hover { transform: none; } }
@media (max-width: 520px) { .brand-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; } .brand-list img { height: 32px; } }
.brand-note { margin: 20px auto 0 !important; font-size: .75rem; color: var(--muted); max-width: 60ch; }

/* ---------- Reseña ---------- */
.review { text-align: center; border-radius: var(--radius); padding: clamp(36px, 6vw, 64px) var(--gutter); background: var(--surface); border: 1px solid var(--line); }
.review .lead { margin: 14px auto 28px; }
.stars { color: #ffcc00; font-size: 1.75rem; letter-spacing: .15em; margin-bottom: 12px; }