:root {
  --navy: #0057A0;
  --deep: #002d54;
  --accent: #A68C5C;
  --light: #f6f8fa;
  --light-2: #f0f3f6;
  --text: #1a1d21;
  --body: #33383f;
  --muted: #5f6874;
  --line: #e8ecef;
  --hairline: #eef1f4;
  --serif: 'Libre Baskerville', 'Baskerville', 'Baskerville Old Face', Georgia, serif;
  --sans: 'Inter', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--text); line-height: 1.7; font-weight: 400; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3, h4, h5 { font-family: var(--serif); font-weight: 500; line-height: 1.22; color: var(--deep); letter-spacing: -.01em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
section { padding: 128px 0; }

/* ============ Animaciones (estilo McKinsey) ============ */
@keyframes blur-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes slight-slide-down { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slight-slide-left { from { transform: translateX(20px); } to { transform: translateX(0); } }
@keyframes slight-slide-right { from { transform: translateX(-20px); } to { transform: translateX(0); } }
@keyframes fade-in { 0% { opacity: 0; } 100% { opacity: 1; } }
@keyframes appear { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes hero-zoom { from { transform: scale(1); } to { transform: scale(1.06); } }
@keyframes animate-gradient { 0% { background-size: 10000% 10000%; } 100% { background-size: 100% 100%; } }
@keyframes grid-pan { 0% { background-position: 0 0; } 100% { background-position: 72px 72px; } }
@keyframes line-grow { from { width: 0; } to { width: 100%; } }
@keyframes underline-slide { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.anim-blur-in { animation: blur-in 1s backwards .2s; }
.anim-blur-in--slow { animation: blur-in 1s backwards .6s; }
.anim-slide-down { animation: slight-slide-down 1s backwards; }
.anim-slide-down--delay { animation: slight-slide-down 1s backwards .2s; }
.anim-slide-down--delay2 { animation: slight-slide-down 1s backwards .4s; }
.anim-fade-in { animation: fade-in .6s; }
.anim-appear { animation: appear .6s ease-in-out backwards; }

/* Línea de acento que se dibuja bajo los títulos (al hacer scroll) */
.section-head .title-line { display: block; width: 0; height: 3px; margin-top: 18px; background: var(--accent); }
.section-head.visible .title-line { animation: line-grow 1s ease-out forwards; }
.section-head.center .title-line { margin-left: auto; margin-right: auto; }

/* Subrayado deslizante en enlaces de listas */
.list-cols a { position: relative; }
.list-cols a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.list-cols a:hover::after { transform: scaleX(1); }

/* Enlaces de nav con línea que se desliza */
.nav-links a { position: relative; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s cubic-bezier(.16,.68,.43,.99), transform .7s cubic-bezier(.16,.68,.43,.99); }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }

/* ============ Nav ============ */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 20px 0; background: transparent; transition: all .3s; }
nav.scrolled { background: #fff; padding: 12px 0; box-shadow: 0 1px 0 rgba(0,0,0,.08); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--serif); font-weight: 700; font-size: 18px; letter-spacing: -.01em; color: #fff; text-decoration: none; }
.brand .mark { width: 34px; height: 34px; border-radius: 7px; background: var(--navy); display: grid; place-items: center; color: #fff; font-family: var(--sans); font-weight: 700; font-size: 15px; }
.brand img.mark { width: auto; height: 64px; border-radius: 0; background: transparent; display: inline-block; }
.brand img.logo-light { display: inline-block; }
.brand img.logo-dark { display: none; }
nav.scrolled .brand img.logo-light { display: none; }
nav.scrolled .brand img.logo-dark { display: inline-block; }
nav.scrolled .brand { color: var(--deep); }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: rgba(255,255,255,.85); text-decoration: none; font-size: 14.5px; font-weight: 500; transition: color .2s; }
nav.scrolled .nav-links a { color: var(--muted); }
.nav-links a:hover { color: #fff; }
nav.scrolled .nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: #fff; font-weight: 600; }
nav.scrolled .nav-links a.active { color: var(--accent); }
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--sans); font-weight: 600; font-size: 14.5px; padding: 11px 22px; border-radius: 8px; cursor: pointer; border: 1px solid transparent; transition: all .2s; text-decoration: none; white-space: nowrap; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: #004b8a; transform: translateY(-1px); }
.nav-cta { background: #fff; color: var(--navy); }
.nav-cta:hover { background: #eef2f7; }
nav.scrolled .nav-cta { background: var(--navy); color: #fff; }
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 6px; }
.hamburger span { width: 22px; height: 2px; background: #fff; display: block; }
nav.scrolled .hamburger span { background: var(--deep); }

/* ============ Hero ============ */
.hero { position: relative; min-height: 92vh; display: flex; align-items: flex-end; padding: 180px 0 100px; color: #fff; overflow: hidden; background: var(--deep); }
.hero .hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; animation: hero-zoom 20s ease-out forwards; }
.hero .hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(5,28,44,.82) 0%, rgba(0,45,84,.5) 55%, rgba(5,28,44,.92) 100%); }
.hero .hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 72px 72px; animation: grid-pan 6s linear infinite; -webkit-mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 100%); mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 100%); }
.hero .container { position: relative; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 16px; color: #9fd0ff; }
.hero h1 { font-size: clamp(44px, 6.5vw, 78px); font-weight: 500; color: #fff; letter-spacing: -.02em; max-width: 860px; }
.hero p.lead { font-size: 20px; max-width: 660px; margin-top: 28px; color: rgba(255,255,255,.9); line-height: 1.75; font-weight: 400; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 44px; }
.btn-ghost-white { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-ghost-white:hover { background: rgba(255,255,255,.12); }

/* Hero interno (páginas secundarias) */
.hero.sub { min-height: 60vh; padding: 150px 0 70px; align-items: flex-end; }
.hero.sub h1 { font-size: clamp(36px, 5vw, 58px); }

/* ============ Stats ============ */
.stats { background: #fff; padding: 80px 0; border-bottom: 1px solid var(--hairline); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 8px 48px; border-right: 1px solid var(--hairline); }
.stat:last-child { border-right: none; }
.stat .num { font-family: var(--serif); font-size: clamp(44px, 5.5vw, 64px); font-weight: 500; color: var(--navy); line-height: 1; }
.stat .num small { font-size: 55%; font-weight: 500; }
.stat .label { color: var(--muted); font-size: 14px; margin-top: 16px; letter-spacing: .01em; }

/* ============ Section head ============ */
.section-head { margin-bottom: 72px; }
.section-head.center { text-align: center; max-width: 760px; margin-left: auto; margin-right: auto; }
.section-head .eyebrow { color: var(--accent); letter-spacing: .2em; font-size: 12px; }
.section-head h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 500; }
.section-head p { color: var(--body); margin-top: 20px; font-size: 17px; line-height: 1.7; font-weight: 300; }
.section-head.bordered { border-bottom: 1px solid var(--hairline); padding-bottom: 32px; }

/* Intro */
.intro { background: #fff; }
.intro p { font-family: var(--serif); font-size: 24px; color: #14171c; max-width: 920px; margin: 0 auto; text-align: center; line-height: 1.7; font-weight: 300; }

/* Two-up */
.two-up { display: grid; grid-template-columns: 1fr 1fr; background: var(--deep); }
.two-up .img-col { min-height: 460px; background-size: cover; background-position: center; }
.two-up .txt-col { padding: 96px 88px; display: flex; flex-direction: column; justify-content: center; color: #fff; }
.two-up .txt-col h3 { color: #fff; font-size: 34px; font-weight: 500; margin-bottom: 24px; }
.two-up .txt-col p { color: rgba(255,255,255,.8); font-size: 17px; line-height: 1.8; font-weight: 400; }

/* Companies carousel */
.companies-carousel { position: relative; width: 100%; overflow: hidden; padding: 8px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.carousel-track { display: flex; width: max-content; will-change: transform; }
.company-card { background: #fff; border: 1px solid var(--hairline); border-radius: 2px; padding: 44px 32px; text-align: center; transition: transform .3s, box-shadow .3s; min-width: 0; width: 280px; flex: 0 0 auto; margin-right: 24px; box-sizing: border-box; }
.company-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -24px rgba(0,30,60,.18); }
.company-card .logo { font-family: var(--serif); font-size: 21px; font-weight: 500; color: var(--deep); word-wrap: break-word; overflow-wrap: anywhere; hyphens: auto; line-height: 1.3; display: flex; align-items: center; justify-content: center; min-height: 44px; }
.company-card .logo img { max-width: 100%; max-height: 44px; height: auto; object-fit: contain; }
.company-card .sector { font-size: 12.5px; color: var(--muted); margin-top: 12px; letter-spacing: .02em; line-height: 1.45; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--navy); font-size: 24px; line-height: 1; cursor: pointer; box-shadow: 0 8px 20px -12px rgba(0,30,60,.3); transition: all .2s; display: flex; align-items: center; justify-content: center; }
.carousel-btn:hover { background: var(--navy); color: #fff; }
.carousel-btn.prev { left: 4px; }
.carousel-btn.next { right: 4px; }

/* Process flow */
.process-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; margin-bottom: 48px; }
.process-flow::before { content: ""; position: absolute; top: 32px; left: 12.5%; right: 12.5%; height: 2px; background: linear-gradient(90deg, var(--accent), rgba(0,103,185,.25)); }
.flow-step { background: #fff; border: 1px solid var(--hairline); border-radius: 2px; padding: 40px 28px 32px; position: relative; transition: transform .3s, box-shadow .3s; }
.flow-step:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -24px rgba(0,30,60,.18); }
.flow-num { width: 64px; height: 64px; border-radius: 50%; background: var(--navy); color: #fff; font-family: var(--serif); font-size: 22px; font-weight: 500; display: grid; place-items: center; margin-bottom: 24px; position: relative; z-index: 1; }
.flow-step h3 { font-size: 22px; font-weight: 500; margin-bottom: 10px; }
.flow-step p { color: var(--body); font-size: 15px; line-height: 1.7; font-weight: 300; }

/* Blog */
.read-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--accent); text-decoration: none; }
.read-more:hover { color: var(--navy); }

/* Article pages */
.article-back { display: inline-flex; align-items: center; gap: 6px; margin: 0 0 40px; font-size: 14px; font-weight: 600; color: var(--accent); text-decoration: none; }
.article-back:hover { color: var(--navy); }
.article-prose { max-width: 760px; margin: 0 auto; }
.article-prose p { line-height: 1.75; color: #2e3a45; margin: 0 0 18px; }
.article-prose h2 { font-size: 24px; margin: 38px 0 14px; }
.article-prose h3 { font-size: 19px; margin: 30px 0 10px; }
.article-prose ul { margin: 0 0 18px; padding-left: 22px; color: #2e3a45; line-height: 1.7; }
.article-prose li { margin-bottom: 8px; }
.article-prose .highlight { background: var(--light); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; padding: 26px 30px; margin: 28px 0; }
.article-prose .highlight p { margin: 0; }
.chips-wrap { display: flex; flex-direction: column; gap: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.chip { font-size: 14px; font-weight: 400; color: var(--navy); background: #fff; border: 1px solid var(--line); padding: 12px 24px; border-radius: 999px; cursor: pointer; transition: all .25s; font-family: var(--sans); letter-spacing: .01em; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.chip-info { max-width: 760px; margin: 0 auto 28px; background: var(--light); border-left: 2px solid var(--accent); border-radius: 0 6px 6px 0; padding: 32px 40px; display: none; }
.chip-info.show { display: block; animation: fade-in .3s ease; }
.chip-info .title { font-family: var(--serif); font-size: 20px; font-weight: 500; color: var(--deep); margin-bottom: 10px; }
.chip-info p { color: var(--body); font-size: 15.5px; line-height: 1.7; font-weight: 300; }
.chip-hint { display: none; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.card { background: #fff; border: 1px solid var(--hairline); border-radius: 2px; overflow: hidden; transition: transform .3s, box-shadow .3s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-5px); box-shadow: 0 24px 48px -26px rgba(0,30,60,.22); }
.card .thumb { height: 200px; background-size: cover; background-position: center; overflow: hidden; }
.card .thumb { transition: transform .6s ease; }
.card:hover .thumb { transform: scale(1.05); }
.card .body { padding: 28px 30px 34px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card .kicker { font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.card h3 { font-size: 20px; font-weight: 500; }
.card p { color: var(--body); font-size: 15px; line-height: 1.7; flex: 1; font-weight: 300; }

.featured { display: grid; grid-template-columns: 1.1fr 1fr; background: #fff; border: 1px solid var(--hairline); border-radius: 2px; overflow: hidden; margin-bottom: 40px; }
.featured .thumb { min-height: 380px; background-size: cover; background-position: center; transition: transform .6s ease; }
.featured:hover .thumb { transform: scale(1.05); }
.featured .body { padding: 56px; display: flex; flex-direction: column; justify-content: center; gap: 16px; }
.featured h3 { font-size: 30px; font-weight: 500; }
.featured p { color: var(--body); font-size: 16.5px; line-height: 1.7; font-weight: 300; }

/* Lista de industrias / funciones (our-work) */
.list-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 64px; }
.list-cols a { color: var(--navy); text-decoration: none; font-size: 16px; font-weight: 400; padding: 14px 0; display: block; border-bottom: 1px solid var(--hairline); transition: color .2s, padding-left .2s; }
.list-cols a:hover { color: var(--accent); padding-left: 6px; }

/* Contact */
.contact-band { background: var(--navy); color: #fff; border-radius: 2px; padding: 72px 64px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; }
.contact-band h2 { color: #fff; font-size: 34px; font-weight: 500; margin-bottom: 18px; }
.contact-band p { color: rgba(255,255,255,.82); font-size: 16.5px; line-height: 1.75; margin-bottom: 28px; font-weight: 400; }
.contact-band .detail { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 15px; }
.contact-band .detail b { color: #fff; font-weight: 500; }
.contact-band .detail span { color: rgba(255,255,255,.75); }
.contact-ctas { display: flex; flex-direction: column; gap: 14px; }
.contact-ctas .btn { justify-content: center; }
.btn-onwhite { background: #fff; color: var(--navy); }
.btn-onwhite:hover { background: #eef2f7; }

/* Footer */
footer { background: var(--light-2); border-top: 1px solid var(--hairline); padding: 48px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer .brand img.mark { height: 40px; }
footer .meta { color: var(--muted); font-size: 13.5px; }

@media (max-width: 880px) {
  .container { padding: 0 20px; max-width: 100%; }
  section { padding: 80px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: none; border-bottom: 1px solid var(--line); padding: 18px 0; }
  .stat:last-child { border-bottom: none; }
  .cards { grid-template-columns: 1fr; }
  .featured { grid-template-columns: 1fr; }
  .featured .thumb { min-height: 200px; }
  .featured .body { padding: 28px 22px; }
  .two-up { grid-template-columns: 1fr; }
  .two-up .img-col { min-height: 220px; }
  .two-up .txt-col { padding: 48px 24px; }
  .companies-carousel { -webkit-mask-image: linear-gradient(90deg, transparent, #000 3%, #000 97%, transparent); mask-image: linear-gradient(90deg, transparent, #000 3%, #000 97%, transparent); }
  .company-card { width: 240px; padding: 26px 20px; }
  .company-card .logo { font-size: 17px; }
  .company-card .sector { font-size: 11.5px; margin-top: 8px; }
  .carousel-btn { display: flex; }
  .process-flow { grid-template-columns: 1fr; gap: 28px; margin-bottom: 40px; }
  .process-flow::before { display: none; }
  .flow-step { display: flex; flex-direction: row; align-items: flex-start; gap: 20px; padding: 24px 22px; }
  .flow-step .flow-num { margin-bottom: 0; flex: 0 0 auto; }
  .flow-step h3 { font-size: 20px; margin-bottom: 6px; }
  .list-cols { grid-template-columns: 1fr; }
  .contact-band { grid-template-columns: 1fr; padding: 40px 26px; }
  .chips-wrap { width: 100%; }
  .chips { gap: 8px; justify-content: flex-start; width: 100%; }
  .chip { font-size: 13px; padding: 10px 14px; max-width: 100%; }
  .chip-info {
    display: none;
    margin: 0 0 16px !important;
    padding: 16px 14px !important;
    border-radius: 8px !important;
    border-left-width: 3px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    background: #eef5fb !important;
    box-shadow: 0 8px 24px -16px rgba(0,30,60,.35);
  }
  .chip-info.show {
    display: block !important;
    position: sticky;
    top: 70px;
    z-index: 20;
  }
  .chip-info .title { font-size: 17px; }
  .chip-info p { font-size: 14.5px; }
  .chip-hint {
    display: block !important;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
    margin: 0 0 12px;
  }
}
.mobile-menu { display: none; position: fixed; inset: 0; z-index: 99; background: #fff; flex-direction: column; align-items: center; justify-content: center; gap: 26px; }
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--deep); text-decoration: none; font-size: 22px; font-family: var(--serif); font-weight: 600; }
.mobile-menu .close { position: absolute; top: 22px; right: 26px; background: none; border: none; font-size: 32px; cursor: pointer; color: var(--deep); }