:root {
    --diamond-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><path d='M50 4 L96 50 L50 96 L4 50 Z' fill='white'/></svg>");

    --bg: #ffffff;
    --bg-2: #f4f5f7;
    --ink: #0b0d12;
    --ink-soft: #5a6072;
    --accent: #1ec8ff;
    --accent-2: #b794f4;
    --accent-3: #6ee7a8;
    --line: rgba(11,13,18,0.10);
    --card: #ffffff;
    --shadow-soft: 0 12px 40px rgba(11,13,18,.06), 0 2px 6px rgba(11,13,18,.04);
  }
  * { box-sizing: border-box; }
  html {
    scroll-behavior: smooth;
  }
  html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Inter Tight", "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  body { overflow-x: hidden; }

  /* ========= FAQ Hero ========= */
  .faq-hero {
    padding: 140px 5vw 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
  }
  .faq-hero::before {
    content: "";
    position: absolute; inset: 0;
    background:
      radial-gradient(ellipse 60% 50% at 30% 80%, rgba(30,200,255,.06), transparent),
      radial-gradient(ellipse 50% 40% at 70% 20%, rgba(183,148,244,.06), transparent);
    pointer-events: none;
  }
  .faq-hero .badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--accent);
    background: rgba(30,200,255,.08);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
    position: relative;
  }
  .faq-hero h1 {
    font-family: "Inter Tight", sans-serif;
    font-weight: 900;
    font-size: clamp(28px, 5vw, 46px);
    letter-spacing: -.03em;
    line-height: 1.1;
    margin: 0 auto 24px;
    max-width: 750px;
    position: relative;
  }
  .faq-hero .lead {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--ink-soft);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    position: relative;
    font-style: italic;
    font-family: "Playfair Display", serif;
  }
  .faq-hero .divider {
    width: 60px; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 2px;
    margin: 48px auto 0;
  }

  /* ========= Jump nav ========= */
  .faq-jump-nav {
    max-width: 800px;
    margin: 48px auto 0;
    padding: 0 5vw;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
  }
  .faq-jump-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--ink);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: border-color .2s, color .2s, transform .2s, box-shadow .2s;
    white-space: nowrap;
  }
  .faq-jump-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30,200,255,.08);
  }
  .faq-jump-link .jump-diamond {
    width: 10px; height: 10px;
    background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
    -webkit-mask-image: var(--diamond-mask);
            mask-image: var(--diamond-mask);
    -webkit-mask-size: 100% 100%;
            mask-size: 100% 100%;
    opacity: .5;
  }
  @media (max-width: 600px) {
    .faq-jump-nav { gap: 8px; margin-top: 36px; }
    .faq-jump-link { font-size: 12px; padding: 7px 14px; }
  }

  /* ========= Stats ribbon ========= */
  .faq-stats {
    max-width: 800px;
    margin: 56px auto 0;
    padding: 0 5vw;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .faq-stat {
    text-align: center;
    padding: 24px 16px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: var(--card);
    box-shadow: 0 4px 16px rgba(11,13,18,.03);
  }
  .faq-stat .num {
    font-family: "Playfair Display", serif;
    font-style: italic;
    font-weight: 500;
    font-size: clamp(28px, 4vw, 38px);
    color: var(--accent);
    line-height: 1;
    margin-bottom: 6px;
  }
  .faq-stat .label {
    font-size: 13px;
    color: var(--ink-soft);
    font-weight: 500;
    line-height: 1.35;
  }
  @media (max-width: 600px) {
    .faq-stats { grid-template-columns: 1fr; gap: 12px; }
    .faq-stat { padding: 20px 16px; }
  }

  /* ========= FAQ Category sections ========= */
  .faq-section {
    padding: 64px 5vw 72px;
    position: relative;
  }
  .faq-section.alt-bg {
    background: var(--bg-2);
  }
  .faq-section-inner {
    max-width: 800px;
    margin: 0 auto;
  }
  .faq-category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
  }
  .faq-category-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
  }
  .faq-category-icon .icon-diamond {
    width: 20px; height: 20px;
    background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
    -webkit-mask-image: var(--diamond-mask);
            mask-image: var(--diamond-mask);
    -webkit-mask-size: 100% 100%;
            mask-size: 100% 100%;
  }
  .faq-category-icon.cat-1 { background: rgba(30,200,255,.08); }
  .faq-category-icon.cat-1 .icon-diamond {
    background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent));
  }
  .faq-category-icon.cat-2 { background: rgba(183,148,244,.08); }
  .faq-category-icon.cat-2 .icon-diamond {
    background: conic-gradient(from 160deg, var(--accent-2), var(--accent), var(--accent-2));
  }
  .faq-category-icon.cat-3 { background: rgba(110,231,168,.08); }
  .faq-category-icon.cat-3 .icon-diamond {
    background: conic-gradient(from 120deg, var(--accent-3), var(--accent), var(--accent-3));
  }
  .faq-category-icon.cat-4 { background: rgba(183,148,244,.08); }
  .faq-category-icon.cat-4 .icon-diamond {
    background: conic-gradient(from 240deg, var(--accent-2), var(--accent-3), var(--accent-2));
  }
  .faq-category-icon.cat-5 { background: rgba(30,200,255,.08); }
  .faq-category-icon.cat-5 .icon-diamond {
    background: conic-gradient(from 300deg, var(--accent), var(--accent-3), var(--accent));
  }
  .faq-category-num {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    font-family: monospace;
    letter-spacing: .05em;
    margin-bottom: 4px;
    display: block;
  }
  .faq-category-header h2 {
    font-family: "Inter Tight", sans-serif;
    font-weight: 800;
    font-size: clamp(22px, 3vw, 28px);
    letter-spacing: -.02em;
    line-height: 1.2;
    margin: 0;
  }

  /* ========= Accordion ========= */
  .faq-accordion {
    border-top: 1px solid var(--line);
  }
  .faq-item {
    border-bottom: 1px solid var(--line);
  }
  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    padding: 22px 0;
    text-align: left;
    font-family: "Inter Tight", sans-serif;
    font-weight: 600;
    font-size: 16px;
    color: var(--ink);
    line-height: 1.45;
    gap: 16px;
    border-left: 3px solid transparent;
    padding-left: 20px;
    margin-left: -20px;
    width: calc(100% + 20px);
    transition: color .25s, border-color .25s;
  }
  .faq-question:hover {
    color: var(--accent);
  }
  .faq-question:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
  }
  .faq-item.open .faq-question {
    color: var(--accent);
    border-left-color: var(--accent);
  }
  .faq-toggle {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: var(--bg-2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: background .25s, transform .3s;
  }
  .alt-bg .faq-toggle {
    background: var(--card);
  }
  .faq-item.open .faq-toggle {
    background: rgba(30,200,255,.1);
    transform: rotate(45deg);
  }
  .faq-toggle::before,
  .faq-toggle::after {
    content: "";
    position: absolute;
    background: var(--ink);
    border-radius: 1px;
    transition: background .25s;
  }
  .faq-toggle::before {
    width: 12px; height: 2px;
  }
  .faq-toggle::after {
    width: 2px; height: 12px;
  }
  .faq-item.open .faq-toggle::before,
  .faq-item.open .faq-toggle::after {
    background: var(--accent);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s cubic-bezier(.4,0,.2,1), opacity .3s ease;
    opacity: 0;
  }
  .faq-item.open .faq-answer {
    opacity: 1;
  }
  .faq-answer-inner {
    padding: 0 0 24px 20px;
    margin-left: -20px;
    padding-left: 20px;
    border-left: 3px solid transparent;
    transition: border-color .25s;
  }
  .faq-item.open .faq-answer-inner {
    border-left-color: var(--accent);
  }
  .faq-answer-inner p {
    font-family: "Inter Tight", sans-serif;
    font-weight: 400;
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.7;
    margin: 0;
  }
  .faq-answer-inner a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 500;
    transition: color .2s;
  }
  .faq-answer-inner a:hover {
    color: var(--accent-2);
  }

  /* ========= Mid-page CTA card ========= */
  .faq-cta-mid {
    padding: 0 5vw 80px;
    position: relative;
  }
  .faq-cta-mid .cta-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 48px 40px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
  }
  .faq-cta-mid .cta-card::before {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(135deg,
      rgba(30,200,255,.04) 0%,
      rgba(183,148,244,.04) 50%,
      rgba(110,231,168,.04) 100%);
    pointer-events: none;
  }
  .faq-cta-mid .cta-card::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  }
  .faq-cta-mid .diamond-float {
    width: 48px; height: 48px;
    margin: 0 auto 18px;
    background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
    -webkit-mask-image: var(--diamond-mask);
            mask-image: var(--diamond-mask);
    -webkit-mask-size: 100% 100%;
            mask-size: 100% 100%;
    opacity: .2;
    position: relative;
  }
  .faq-cta-mid .eyebrow {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--accent);
    margin-bottom: 12px;
    position: relative;
  }
  .faq-cta-mid h3 {
    font-family: "Inter Tight", sans-serif;
    font-weight: 800;
    font-size: clamp(22px, 3vw, 28px);
    letter-spacing: -.02em;
    line-height: 1.2;
    margin: 0 0 12px;
    position: relative;
  }
  .faq-cta-mid h3 em {
    font-family: "Playfair Display", serif;
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
  }
  .faq-cta-mid .desc {
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.6;
    margin: 0 0 28px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
  }
  .faq-cta-mid .btn-row {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
  }
  .faq-cta-mid .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--ink);
    color: #fff;
    padding: 15px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: transform .2s, box-shadow .2s;
  }
  .faq-cta-mid .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(11,13,18,.15);
  }
  .faq-cta-mid .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--ink);
    padding: 15px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 1.5px solid var(--line);
    transition: transform .2s, border-color .2s, color .2s;
  }
  .faq-cta-mid .btn-secondary:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    color: var(--accent);
  }

  /* ========= CTA final ========= */
  .cta-final {
    padding: 80px 5vw;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-final::before {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(135deg,
      rgba(30,200,255,.04) 0%,
      rgba(183,148,244,.04) 50%,
      rgba(110,231,168,.04) 100%);
    pointer-events: none;
  }
  .cta-final .inner {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 48px 40px;
    box-shadow: var(--shadow-soft);
  }
  .cta-final h2 {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 800;
    letter-spacing: -.02em;
    margin: 0 0 12px;
    line-height: 1.2;
  }
  .cta-final h2 em {
    font-family: "Playfair Display", serif;
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
  }
  .cta-final p {
    font-size: 16px;
    color: var(--ink-soft);
    margin: 0 0 28px;
    line-height: 1.6;
  }
  .cta-final .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--ink);
    color: #fff;
    padding: 16px 32px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: transform .2s, box-shadow .2s;
  }
  .cta-final .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(11,13,18,.15);
  }
  .cta-final .btn .dur {
    opacity: .5;
    font-weight: 400;
  }

  /* ========= Footer ========= */
                              
  /* ========= Reveal animation ========= */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ========= Responsive FAQ ========= */
  @media (max-width: 600px) {
    .faq-hero { padding: 120px 5vw 0; }
    .faq-section { padding: 48px 5vw 56px; }
    .faq-question {
      font-size: 15px;
      padding: 18px 0;
      padding-left: 16px;
      margin-left: -16px;
      width: calc(100% + 16px);
    }
    .faq-answer-inner {
      padding-left: 16px;
      margin-left: -16px;
    }
    .faq-answer-inner p { font-size: 15px; }
    .faq-cta-mid .cta-card { padding: 36px 24px; }
    .cta-final .inner { padding: 36px 24px; }
    .faq-category-header h2 { font-size: 20px; }
    .faq-cta-mid .btn-row { flex-direction: column; align-items: stretch; }
    .faq-cta-mid .btn-primary,
    .faq-cta-mid .btn-secondary {
      justify-content: center;
    }
  }

  /* ========= Extra bottom pad for footer on mobile ========= */
  @media (max-width: 768px) {
    footer { padding-bottom: calc(30px + 72px); }
  }

  /* ============================================================== */
  /* ===== Phase 3 — Mobile GPU optimization (added 2026-05-08) ====== */
  /* Goal: 30-50% less GPU strain on mobile, no visual loss on desktop. */
  /* ============================================================== */
  @media (max-width: 768px) {
    /* Cap backdrop-filter blur radius — still glassy, half the GPU cost */
    nav.top {
      backdrop-filter: blur(8px) !important;
      -webkit-backdrop-filter: blur(8px) !important;
    }
    .nav-drawer {
      backdrop-filter: blur(12px) !important;
      -webkit-backdrop-filter: blur(12px) !important;
    }
    footer {
      backdrop-filter: blur(8px) saturate(140%) !important;
      -webkit-backdrop-filter: blur(8px) saturate(140%) !important;
    }
    .panel,
    .glass-card,
    .panel.glass .card,
    .panel.glass .stat-card,
    .sector,
    #sectores .panel.mesh,
    .journey-card,
    .process-row .step-card,
    .marquee-track .logo-pill,
    .video-slot .play,
    .btn.btn-revolucion {
      backdrop-filter: blur(10px) !important;
      -webkit-backdrop-filter: blur(10px) !important;
    }
    
    /* Disable purely decorative large blurs on pseudo-elements
       (orbs/halos that are >30px blur — cheaper to just hide than blur) */
    .panel.mesh::before,
    .panel.mesh::after {
      filter: blur(20px) !important;
      opacity: 0.6 !important;
    }
    
    /* Release GPU layers on elements that aren't actively animating.
       Keep will-change only on the 3D scene parts that DO animate continuously. */
    *:not(.scene):not(.octa):not(.face):not(.scene-shadow):not(.scene-glow) {
      will-change: auto !important;
    }
    
    /* Simplify multi-layer box-shadows on cards — one shadow is enough on mobile */
    .card-blog,
    .glass-card,
    .sprint-cta-card {
      transition-property: transform !important;
    }
  }
  
  /* On low-end devices that prefer reduced data, also disable scene completely */
  @media (max-width: 768px) and (prefers-reduced-data: reduce) {
    .scene { display: none !important; }
  }
  /* ============================================================== */

  /* ============================================================== */
  /* === Reveal animations DISABLED — content always visible ====== */
  /* ============================================================== */
  .reveal,
  .reveal.in,
  .reveal.visible {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  /* ============================================================== */

  /* ================ Sigue explorando — interlinking block ================ */
  .next-steps {
    max-width: 1100px;
    margin: 64px auto 24px;
    padding: 48px 5vw;
    background: linear-gradient(135deg,
      rgba(216,238,247,.18) 0%,
      rgba(232,230,248,.18) 50%,
      rgba(221,243,230,.18) 100%);
    border-radius: 24px;
  }
  .next-steps__eyebrow {
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--ink-soft, #5a6072);
    margin: 0 0 8px;
  }
  .next-steps__title {
    text-align: center;
    font-family: 'Inter Tight', sans-serif;
    font-weight: 800;
    font-size: clamp(22px, 3vw, 28px);
    letter-spacing: -.02em;
    margin: 0 0 32px;
    color: var(--ink, #0b0d12);
  }
  .next-steps__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  @media (max-width: 700px) {
    .next-steps__grid { grid-template-columns: 1fr; }
  }
  .next-steps__card {
    display: block;
    padding: 24px 20px;
    background: rgba(255,255,255,.7);
    border: 1px solid rgba(11,13,18,.08);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: transform .25s, box-shadow .25s, border-color .25s;
  }
  .next-steps__card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(11,13,18,.08);
    border-color: var(--accent, #1ec8ff);
  }
  .next-steps__card-title {
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -.01em;
    margin: 0 0 6px;
    color: var(--ink, #0b0d12);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .next-steps__card-title .arrow { transition: transform .25s; }
  .next-steps__card:hover .next-steps__card-title .arrow { transform: translateX(4px); }
  .next-steps__card-desc {
    font-size: 13px;
    color: var(--ink-soft, #5a6072);
    margin: 0;
    line-height: 1.4;
  }
  /* ================================================================ */