:root {
  --navy: #071321;
  --navy-brand: #0d1b2a;
  --blue: #1e3a5f;
  --electric: #4b82bf;
  --graphite: #2b2f33;
  --steel: #6b7280;
  --silver: #d6d9dd;
  --copper: #b87333;
  --copper-light: #d59a62;
  --warm: #f3f1ed;
  --white: #fff;
  --content: min(1280px, calc(100vw - 96px));
  --header-height: 88px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--navy); }
section[id] { scroll-margin-top: 72px; }
body {
  margin: 0;
  color: var(--white);
  background: var(--navy);
  font-family: "Montserrat", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 16px; background: white; color: var(--navy); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  height: var(--header-height);
  padding: 0 4vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background .45s ease, border-color .45s ease, height .45s ease;
}
.site-header.scrolled { height: 72px; background: rgba(7,19,33,.9); border-color: rgba(255,255,255,.09); backdrop-filter: blur(16px); }
.brand { width: 188px; position: relative; z-index: 2; }
.brand img { width: 100%; }
.header-tools { display: flex; align-items: center; gap: 24px; }
.main-nav { display: flex; align-items: center; gap: 34px; font-size: .74rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.main-nav a { position: relative; padding: 12px 0; }
.main-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: 5px; width: 100%; height: 1px; background: var(--copper); transform: scaleX(0); transform-origin: right; transition: transform .3s ease; }
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { border: 1px solid rgba(213,154,98,.65); padding: 10px 18px !important; color: var(--copper-light); }
.language-toggle { position: relative; z-index: 2; min-width: 76px; height: 44px; padding: 0 12px; border: 1px solid rgba(255,255,255,.24); background: rgba(7,19,33,.38); color: white; display: inline-flex; align-items: center; justify-content: center; gap: 9px; cursor: pointer; font-size: .68rem; font-weight: 600; letter-spacing: .1em; transition: border-color .25s ease, background .25s ease; }
.language-toggle:hover, .language-toggle:focus-visible { border-color: var(--copper-light); background: rgba(184,115,51,.13); }
.language-toggle span { opacity: .42; transition: color .25s ease, opacity .25s ease; }
.language-toggle i { width: 1px; height: 13px; background: rgba(255,255,255,.28); }
html[lang="es"] .language-toggle .lang-es, html[lang="en"] .language-toggle .lang-en { color: var(--copper-light); opacity: 1; }
.menu-toggle { display: none; border: 0; background: transparent; color: white; width: 44px; height: 44px; padding: 10px; }
.menu-toggle span:not(.sr-only) { display: block; height: 1px; background: currentColor; margin: 6px 0; transition: transform .3s ease, opacity .3s ease; }

.hero { min-height: 100svh; position: relative; display: grid; align-items: center; isolation: isolate; }
.hero-media { position: absolute; inset: 0; z-index: -3; background: url("assets/hero-city.webp") center/cover no-repeat; transform: scale(1.03); animation: hero-in 1.8s cubic-bezier(.2,.8,.2,1) both; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(4,13,24,.97) 0%, rgba(6,16,28,.82) 34%, rgba(5,14,25,.18) 72%, rgba(5,14,25,.34) 100%), linear-gradient(0deg, rgba(5,14,25,.74), transparent 38%); }
.film-grain { position: absolute; inset: 0; z-index: -1; opacity: .07; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E"); }
.hero-content { width: var(--content); margin: 0 auto; padding: 160px 0 110px; }
.eyebrow { margin: 0 0 22px; color: var(--copper-light); font-size: .72rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { max-width: 970px; margin: 0; font-size: clamp(2.7rem, 5.8vw, 5.9rem); line-height: .98; letter-spacing: -.055em; text-transform: uppercase; }
.hero h1 em { color: var(--copper-light); font-style: normal; }
.hero-copy { max-width: 640px; margin: 34px 0 0; color: rgba(255,255,255,.76); font-size: clamp(1rem, 1.35vw, 1.2rem); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 42px; }
.button { min-height: 52px; padding: 14px 22px; display: inline-flex; align-items: center; gap: 24px; border: 1px solid rgba(255,255,255,.36); font-size: .73rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; transition: .3s ease; }
.button-primary { background: var(--copper); border-color: var(--copper); color: white; }
.button-primary:hover { background: var(--copper-light); border-color: var(--copper-light); color: var(--navy); }
.button-ghost:hover { background: white; color: var(--navy); }
.chapter-mark { position: absolute; right: 4vw; top: 48%; display: grid; justify-items: center; gap: 8px; color: rgba(255,255,255,.72); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; }
.chapter-mark i { width: 1px; height: 60px; background: linear-gradient(var(--copper), rgba(255,255,255,.12)); }
.chapter-mark small { writing-mode: vertical-rl; }
.scroll-cue { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: grid; place-items: center; gap: 8px; font-size: .63rem; letter-spacing: .18em; text-transform: uppercase; color: rgba(255,255,255,.6); }
.scroll-cue i { width: 1px; height: 34px; background: var(--copper); animation: pulse-line 1.8s infinite; }

.section { padding: 130px 0; }
.section-index { width: var(--content); margin: 0 auto 80px; display: grid; grid-template-columns: auto 90px auto 1fr; align-items: center; gap: 14px; color: var(--steel); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; }
.section-index i { height: 1px; background: var(--copper); }
.manifesto { color: var(--navy); background: var(--warm); position: relative; }
.manifesto::after { content: ""; position: absolute; width: 34vw; height: 34vw; right: -12vw; top: 6%; border: 1px solid rgba(184,115,51,.18); border-radius: 50%; }
.manifesto-grid { width: var(--content); margin: auto; display: grid; grid-template-columns: 1.1fr .9fr; gap: 9vw; position: relative; z-index: 1; }
.manifesto h2, .brands-intro h2 { margin: 0; font-size: clamp(3rem, 6vw, 6.6rem); line-height: .91; letter-spacing: -.06em; text-transform: uppercase; }
.manifesto h2 span, .brands-intro h2 span { color: var(--copper); }
.manifesto-copy { padding-top: 10px; max-width: 590px; }
.manifesto-copy p { color: #394451; }
.manifesto-copy .lead { margin-top: 0; color: var(--navy); font-size: clamp(1.35rem, 2.1vw, 2rem); line-height: 1.3; font-weight: 500; }
.signature { border-left: 2px solid var(--copper); padding: 4px 0 4px 22px; margin-top: 38px; font-weight: 600; color: var(--navy) !important; }
.principles { width: var(--content); margin: 110px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #cdd1d4; border-bottom: 1px solid #cdd1d4; }
.principles article { min-height: 200px; padding: 30px; border-right: 1px solid #cdd1d4; }
.principles article:first-child { border-left: 1px solid #cdd1d4; }
.principles article span, .integration-flow article > span { color: var(--copper); font-size: .68rem; letter-spacing: .14em; }
.principles h3 { margin: 42px 0 4px; text-transform: uppercase; font-size: 1rem; letter-spacing: .06em; }
.principles p { margin: 0; color: var(--steel); font-size: .9rem; }

.brands-intro { background: var(--navy); padding-bottom: 105px; }
.intro-row { width: var(--content); margin: auto; display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 8vw; }
.brands-intro h2 span { color: var(--electric); }
.intro-row > p { margin: 0; max-width: 480px; color: rgba(255,255,255,.65); font-size: 1.1rem; }

.brand-chapter { min-height: 95svh; position: relative; display: flex; align-items: center; isolation: isolate; overflow: hidden; }
.brand-media, .brand-shade { position: absolute; inset: 0; }
.brand-media { z-index: -3; background: center/cover no-repeat; transition: transform 1.3s ease; }
.brand-chapter:hover .brand-media { transform: scale(1.02); }
.brand-datelsi .brand-media { background-image: url("assets/datelsi.webp"); }
.brand-santo .brand-media { background-image: url("assets/santo-rivera.webp"); }
.brand-arpa .brand-media { background-image: url("assets/hero-city.webp"); background-position: center 58%; }
.brand-shade { z-index: -2; background: linear-gradient(90deg, rgba(4,13,24,.98) 0%, rgba(4,13,24,.87) 40%, rgba(4,13,24,.18) 75%, rgba(4,13,24,.36)); }
.brand-santo .brand-shade { background: linear-gradient(90deg, rgba(5,12,21,.98) 0%, rgba(5,12,21,.89) 39%, rgba(5,12,21,.16) 76%, rgba(5,12,21,.3)); }
.brand-arpa .brand-shade { background: linear-gradient(90deg, rgba(7,16,20,.98) 0%, rgba(8,20,24,.9) 42%, rgba(7,20,20,.2) 76%, rgba(5,15,18,.42)); }
.brand-content { width: var(--content); margin: auto; padding: 130px 0; }
.brand-content > * { max-width: 650px; }
.brand-number { margin: 0 0 26px; color: var(--copper-light); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; }
.wordmark { margin-bottom: 38px; font-weight: 700; letter-spacing: .05em; }
.datelsi-mark { width: min(520px, 100%); padding: 4px; overflow: visible; background: transparent; border: 0; box-shadow: none; }
.datelsi-mark img { width: 100%; height: auto; max-width: none; object-fit: contain; object-position: center; filter: drop-shadow(0 8px 18px rgba(0,0,0,.4)); }
.santo-mark { display: flex; align-items: center; gap: 14px; font-size: 1rem; }
.santo-mark > span { font-size: 2.1rem; letter-spacing: -.16em; margin-right: 6px; }
.arpa-division-mark { width: min(520px, 100%); }
.arpa-division-mark img { width: 100%; height: auto; }
.brand-content h2 { margin: 0; font-size: clamp(2.25rem, 4.1vw, 4.6rem); line-height: 1.02; letter-spacing: -.045em; text-transform: uppercase; }
.hero h1,
.manifesto h2,
.brands-intro h2,
.brand-content h2,
.integration-head h2,
.origin-statement,
.contact-content h2 {
  overflow-wrap: normal;
  word-break: normal;
  hyphens: none;
  text-wrap: balance;
}
.keep-word { white-space: nowrap; }
.brand-content > p:not(.brand-number):not(.group-signature) { margin: 28px 0 0; color: rgba(255,255,255,.7); font-size: 1.03rem; }
.capabilities { padding: 0; margin: 32px 0; display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.capabilities li { padding: 9px 12px; border: 1px solid rgba(255,255,255,.2); background: rgba(6,18,31,.35); backdrop-filter: blur(8px); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; }
.text-link { display: inline-flex; align-items: center; gap: 18px; color: var(--copper-light); font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; border-bottom: 1px solid rgba(213,154,98,.45); padding-bottom: 8px; }
.text-link span { transition: transform .25s ease; }
.text-link:hover span { transform: translate(3px,-3px); }
.group-signature { margin-top: 50px !important; color: rgba(255,255,255,.48) !important; font-size: .76rem !important; }

.integration { color: var(--navy); background: var(--warm); }
.integration-head { width: var(--content); margin: auto; max-width: 1120px; text-align: center; }
.integration-head h2 { margin: 0 auto; font-size: clamp(2.3rem, 4.5vw, 5rem); line-height: 1.08; letter-spacing: -.05em; text-transform: uppercase; }
.integration-flow { width: var(--content); margin: 100px auto 0; display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid #cdd1d4; }
.integration-flow article { padding: 34px 28px; min-height: 220px; border-right: 1px solid #cdd1d4; }
.integration-flow article:last-child { border: 0; }
.integration-flow h3 { margin: 54px 0 6px; font-size: 1rem; text-transform: uppercase; }
.integration-flow p { margin: 0; color: var(--steel); font-size: .88rem; }
.origin-statement { width: var(--content); margin: 115px auto 0; font-size: clamp(2.4rem, 6vw, 7rem); line-height: .92; letter-spacing: -.055em; text-transform: uppercase; }
.origin-statement span { color: var(--copper); }

.contact { min-height: 86svh; position: relative; overflow: hidden; display: grid; place-items: center; background: radial-gradient(circle at 78% 50%, #14304b 0, var(--navy) 34%, #050d16 70%); }
.contact::before, .contact::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.contact::before { width: min(62vw, 820px); aspect-ratio: 1; right: -15vw; border: 1px solid rgba(184,115,51,.3); }
.contact::after { width: min(45vw, 610px); aspect-ratio: 1; right: -7vw; border: 1px solid rgba(255,255,255,.08); }
.contact-glow { position: absolute; width: 190px; height: 190px; right: 12%; top: 38%; background: rgba(184,115,51,.25); filter: blur(80px); }
.contact-content { width: var(--content); padding: 130px 0; position: relative; z-index: 1; }
.contact-content h2 { max-width: 920px; margin: 0; font-size: clamp(2.8rem, 6vw, 6.5rem); line-height: .94; letter-spacing: -.055em; text-transform: uppercase; }
.contact-content > p:not(.eyebrow) { max-width: 660px; color: rgba(255,255,255,.65); font-size: 1.05rem; }
.contact-options { max-width: 1120px; display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-top: 60px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.16); }
.contact-options a { min-height: 156px; padding: 30px; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 8px; background: rgba(7,19,33,.8); transition: background .3s ease; }
.contact-options a:hover { background: rgba(184,115,51,.18); }
.contact-options span { grid-column: 1/-1; align-self: start; color: var(--copper-light); font-size: .69rem; letter-spacing: .1em; text-transform: uppercase; }
.contact-options strong { text-transform: uppercase; font-size: .9rem; letter-spacing: .05em; }
.contact-options i { color: var(--copper-light); font-style: normal; font-size: 1.3rem; }

.site-footer { padding: 70px 4vw 34px; background: #040b13; border-top: 1px solid rgba(255,255,255,.09); }
.site-footer > img { width: 210px; }
.site-footer > p { color: rgba(255,255,255,.54); font-size: .82rem; margin: 24px 0 60px; }
.site-footer > div { padding-top: 22px; border-top: 1px solid rgba(255,255,255,.09); display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.46); font-size: .68rem; letter-spacing: .05em; text-transform: uppercase; }
.footer-links { display: flex; flex-wrap: wrap; gap: 28px; }
.footer-links a { transition: color .25s ease; }
.footer-links a:hover, .footer-links a:focus-visible, .cookie-settings-button:hover, .cookie-settings-button:focus-visible { color: var(--copper-light); }
.cookie-settings-button { padding: 0; border: 0; background: none; color: inherit; font: inherit; letter-spacing: inherit; text-transform: inherit; cursor: pointer; }

/* Consentimiento de cookies */
.cookie-consent { position: fixed; z-index: 1000; inset: auto 22px 22px; width: min(1080px, calc(100% - 44px)); margin-inline: auto; color: white; background: rgba(5,14,24,.98); border: 1px solid rgba(213,154,98,.48); box-shadow: 0 24px 80px rgba(0,0,0,.48); backdrop-filter: blur(18px); }
.cookie-consent[hidden] { display: none; }
.cookie-consent__inner { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: 42px; padding: 28px 30px; }
.cookie-consent__eyebrow { margin: 0 0 8px; color: var(--copper-light); font-size: .64rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.cookie-consent h2 { margin: 0; font-size: clamp(1.15rem, 2vw, 1.55rem); letter-spacing: -.02em; text-transform: uppercase; }
.cookie-consent__copy > p:not(.cookie-consent__eyebrow) { max-width: 700px; margin: 10px 0 0; color: rgba(255,255,255,.7); font-size: .88rem; line-height: 1.55; }
.cookie-consent__privacy { display: inline-block; margin-top: 12px; color: rgba(255,255,255,.82); font-size: .72rem; text-decoration: underline; text-underline-offset: 3px; }
.cookie-consent__actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.cookie-consent__button { min-height: 46px; padding: 11px 18px; border: 1px solid rgba(255,255,255,.3); font: inherit; font-size: .7rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.cookie-consent__button--secondary { color: white; background: transparent; }
.cookie-consent__button--primary { color: #071321; background: var(--copper-light); border-color: var(--copper-light); }
.cookie-consent__button:hover, .cookie-consent__button:focus-visible { border-color: white; outline: 2px solid transparent; }

/* Aviso de privacidad */
.privacy-page { color: var(--navy); background: var(--warm); overflow-x: hidden; }
.privacy-page .site-header { background: rgba(7,19,33,.96); border-bottom-color: rgba(255,255,255,.09); }
.privacy-header-actions { display: flex; align-items: center; gap: 14px; }
.privacy-back { padding: 10px 0; color: rgba(255,255,255,.76); font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.privacy-back:hover, .privacy-back:focus-visible { color: var(--copper-light); }
.privacy-main { min-height: 100svh; padding-top: var(--header-height); }
.privacy-hero { position: relative; isolation: isolate; overflow: hidden; padding: 108px 0 84px; color: white; background: radial-gradient(circle at 82% 30%, #183956 0, #0a1d2f 30%, #050d16 72%); }
.privacy-hero::after { content: ""; position: absolute; z-index: -1; width: min(52vw, 720px); aspect-ratio: 1; right: -16vw; top: -28%; border: 1px solid rgba(213,154,98,.28); border-radius: 50%; }
.privacy-hero-inner, .privacy-document { width: min(920px, calc(100% - 48px)); margin-inline: auto; }
.privacy-hero h1 { max-width: 850px; margin: 0; font-size: clamp(2.7rem, 6.2vw, 6rem); line-height: .94; letter-spacing: -.055em; text-transform: uppercase; }
.privacy-hero h1 span { color: var(--copper-light); }
.privacy-summary { max-width: 690px; margin: 28px 0 0; color: rgba(255,255,255,.72); font-size: 1.06rem; }
.privacy-meta { margin: 44px 0 0; color: var(--copper-light); font-size: .7rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; }
.privacy-document { padding: 92px 0 120px; }
.privacy-document section { padding: 38px 0; border-bottom: 1px solid #ccd0d3; }
.privacy-document section:first-child { padding-top: 0; }
.privacy-document h2 { margin: 0 0 18px; font-size: clamp(1.45rem, 3vw, 2rem); line-height: 1.15; letter-spacing: -.025em; text-transform: uppercase; }
.privacy-document h3 { margin: 28px 0 10px; font-size: 1rem; text-transform: uppercase; }
.privacy-document p, .privacy-document li { color: #394451; }
.privacy-document p { margin: 0 0 16px; }
.privacy-document ul, .privacy-document ol { padding-left: 1.25rem; margin: 14px 0 0; }
.privacy-document li + li { margin-top: 9px; }
.privacy-document a { color: #925522; text-decoration: underline; text-underline-offset: 3px; }
.privacy-note { padding: 22px 24px; border-left: 3px solid var(--copper); background: white; }
.privacy-contact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 22px; border: 1px solid #ccd0d3; background: #ccd0d3; }
.privacy-contact div { padding: 20px; background: var(--warm); }
.privacy-contact strong { display: block; margin-bottom: 6px; color: var(--navy); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.privacy-contact span, .privacy-contact a { font-size: .9rem; overflow-wrap: anywhere; }
.privacy-language[hidden] { display: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s cubic-bezier(.2,.8,.2,1), transform .75s cubic-bezier(.2,.8,.2,1); }
.reveal.in-view { opacity: 1; transform: none; }
.principles .reveal:nth-child(2), .integration-flow article:nth-child(2) { transition-delay: .08s; }
.principles .reveal:nth-child(3), .integration-flow article:nth-child(3) { transition-delay: .16s; }
.principles .reveal:nth-child(4), .integration-flow article:nth-child(4) { transition-delay: .24s; }

@keyframes hero-in { from { opacity: 0; transform: scale(1.1); } to { opacity: 1; transform: scale(1.03); } }
@keyframes pulse-line { 0%,100% { transform: scaleY(.35); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } }

@media (max-width: 980px) {
  :root { --content: min(100% - 48px, 760px); }
  .header-tools { gap: 16px; }
  .main-nav { gap: 16px; }
  .manifesto-grid, .intro-row { grid-template-columns: 1fr; gap: 52px; }
  .principles, .integration-flow { grid-template-columns: repeat(2,1fr); }
  .principles article:nth-child(2) { border-right: 0; }
  .principles article:nth-child(-n+2) { border-bottom: 1px solid #cdd1d4; }
  .integration-flow article:nth-child(2) { border-right: 0; }
  .integration-flow article:nth-child(-n+2) { border-bottom: 1px solid #cdd1d4; }
  .brand-shade { background: linear-gradient(90deg, rgba(4,13,24,.97) 0%, rgba(4,13,24,.82) 62%, rgba(4,13,24,.4)); }
  .contact-options { grid-template-columns: repeat(2, 1fr); }
  .contact-options a:last-child { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --content: calc(100% - 40px); --header-height: 72px; }
  .site-header { padding-right: max(16px, env(safe-area-inset-right)); padding-left: max(16px, env(safe-area-inset-left)); }
  .site-header.scrolled { height: 64px; }
  .brand { width: 148px; flex: 0 0 auto; }
  .header-tools { margin-left: auto; gap: 6px; }
  .language-toggle { min-width: 70px; padding-inline: 10px; background: rgba(7,19,33,.72); }
  .menu-toggle { display: block; position: relative; z-index: 2; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 0; min-height: 100dvh; padding: max(100px, calc(72px + env(safe-area-inset-top))) max(24px, env(safe-area-inset-right)) max(40px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left)); background: rgba(5,14,24,.98); display: grid; align-content: center; justify-items: stretch; gap: 8px; font-size: 1rem; opacity: 0; visibility: hidden; transform: translateY(-12px); transition: .3s ease; }
  .main-nav.open { opacity: 1; visibility: visible; transform: none; }
  .main-nav a { width: min(100%, 420px); margin-inline: auto; padding: 17px 14px; text-align: center; border-bottom: 1px solid rgba(255,255,255,.1); }
  .main-nav .nav-cta { margin-top: 16px; border-color: rgba(213,154,98,.65); }
  .hero::before { background: linear-gradient(90deg, rgba(4,13,24,.97), rgba(4,13,24,.7)), linear-gradient(0deg, rgba(5,14,25,.8), transparent 45%); }
  .hero { min-height: 100dvh; }
  .hero-media { background-position: 66% center; }
  .hero-content { padding: 118px 0 92px; }
  .hero h1 { max-width: 12ch; font-size: clamp(2.35rem, 10.5vw, 4.25rem); line-height: .98; letter-spacing: -.045em; }
  .hero h1 br { display: none; }
  .hero-copy { max-width: 34rem; margin-top: 24px; font-size: 1rem; line-height: 1.55; }
  .hero-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 32px; }
  .button { min-width: 0; min-height: 54px; padding: 13px 16px; justify-content: space-between; gap: 12px; line-height: 1.35; }
  .chapter-mark { display: none; }
  .scroll-cue { display: none; }
  .section { padding: 92px 0; }
  .section-index { margin-bottom: 44px; grid-template-columns: auto 42px auto minmax(0, 1fr); gap: 10px; }
  .manifesto-grid, .intro-row { gap: 38px; }
  .manifesto h2, .brands-intro h2 { max-width: 100%; font-size: clamp(2.25rem, 10.8vw, 4rem); line-height: .94; letter-spacing: -.05em; }
  .manifesto-copy .lead { font-size: clamp(1.25rem, 5.3vw, 1.7rem); }
  .principles, .integration-flow { grid-template-columns: 1fr; margin-top: 68px; }
  .principles article, .principles article:first-child, .integration-flow article { min-height: 0; padding: 26px 24px; border: 0; border-bottom: 1px solid #cdd1d4; border-left: 1px solid #cdd1d4; border-right: 1px solid #cdd1d4; }
  .principles article:first-child, .integration-flow article:first-child { border-top: 1px solid #cdd1d4; }
  .principles h3, .integration-flow h3 { margin-top: 24px; }
  .brand-chapter { min-height: 100dvh; align-items: end; }
  .brand-media { background-position: 62% center; }
  .brand-santo .brand-media { background-position: 64% center; }
  .brand-arpa .brand-media { background-position: 68% center; }
  .brand-shade, .brand-santo .brand-shade, .brand-arpa .brand-shade { background: linear-gradient(0deg, rgba(4,13,24,.99) 4%, rgba(4,13,24,.9) 52%, rgba(4,13,24,.35) 100%); }
  .brand-content { padding: 132px 0 max(64px, calc(44px + env(safe-area-inset-bottom))); }
  .brand-number { margin-bottom: 18px; }
  .wordmark { margin-bottom: 28px; }
  .brand-content h2 { max-width: 18ch; font-size: clamp(2rem, 8.9vw, 3.35rem); line-height: 1.02; letter-spacing: -.04em; }
  .brand-arpa .brand-content h2 { max-width: 100%; }
  .brand-content > p:not(.brand-number):not(.group-signature) { margin-top: 22px; font-size: .98rem; }
  .capabilities { margin: 26px 0; gap: 7px; }
  .capabilities li { max-width: 100%; padding: 8px 10px; font-size: .68rem; overflow-wrap: normal; word-break: normal; hyphens: none; }
  .group-signature { margin-top: 38px !important; }
  .integration-head { text-align: left; }
  .integration-head h2 { font-size: clamp(2.05rem, 8.9vw, 3.6rem); line-height: 1.04; }
  .origin-statement { margin-top: 82px; }
  .contact { min-height: auto; }
  .contact-content { padding: 100px 0 max(84px, calc(64px + env(safe-area-inset-bottom))); }
  .contact-content h2 { font-size: clamp(2.25rem, 10vw, 4rem); line-height: .98; }
  .contact-content > p:not(.eyebrow) { font-size: 1rem; }
  .contact-options { grid-template-columns: 1fr; }
  .contact-options a, .contact-options a:last-child { grid-column: auto; min-height: 120px; padding: 24px; }
  .site-footer { padding: 58px max(20px, env(safe-area-inset-right)) max(30px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left)); }
  .site-footer > img { width: min(190px, 70vw); }
  .site-footer > div { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 14px; align-items: flex-start; }
  .cookie-consent { inset: auto 12px 12px; width: calc(100% - 24px); }
  .cookie-consent__inner { grid-template-columns: 1fr; align-items: stretch; gap: 22px; padding: 22px 20px; }
  .cookie-consent__actions { display: grid; grid-template-columns: 1fr 1fr; }
  .cookie-consent__button { width: 100%; padding-inline: 12px; }
  .privacy-back { display: none; }
  .privacy-main { padding-top: 72px; }
  .privacy-hero { padding: 76px 0 62px; }
  .privacy-hero-inner, .privacy-document { width: calc(100% - 40px); }
  .privacy-hero h1 { font-size: clamp(2.4rem, 12vw, 4rem); }
  .privacy-document { padding: 66px 0 88px; }
  .privacy-document section { padding: 30px 0; }
  .privacy-contact { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  :root { --content: calc(100% - 32px); }
  .eyebrow { margin-bottom: 16px; font-size: .66rem; letter-spacing: .14em; }
  .hero-content { padding-top: 104px; }
  .hero h1 { font-size: clamp(2.15rem, 10.7vw, 3.1rem); }
  .hero-actions { grid-template-columns: 1fr; }
  .button { width: 100%; }
  .section { padding: 78px 0; }
  .section-index { margin-bottom: 38px; font-size: .64rem; letter-spacing: .13em; }
  .manifesto h2, .brands-intro h2 { font-size: clamp(2.05rem, 10.4vw, 3rem); }
  .principles, .integration-flow { margin-top: 54px; }
  .brand-content { padding-top: 118px; }
  .brand-content h2 { font-size: clamp(1.88rem, 8.7vw, 2.7rem); }
  .brand-arpa .brand-content h2 { font-size: clamp(1.78rem, 7.9vw, 2.45rem); }
  .santo-mark { gap: 10px; font-size: .86rem; }
  .santo-mark > span { font-size: 1.75rem; }
  .origin-statement { margin-top: 64px; font-size: clamp(1.9rem, 8.8vw, 3.2rem); line-height: .96; }
  .contact-options { margin-top: 42px; }
  .site-footer > p { margin-bottom: 44px; }
  .cookie-consent__actions { grid-template-columns: 1fr; }
}

@media (max-width: 360px) {
  :root { --content: calc(100% - 28px); }
  .brand { width: 132px; }
  .language-toggle { min-width: 64px; padding-inline: 8px; gap: 7px; }
  .hero h1 { font-size: 2rem; }
  .manifesto h2, .brands-intro h2 { font-size: 1.95rem; }
  .brand-content h2 { font-size: 1.78rem; }
  .contact-content h2 { font-size: 2rem; }
  .contact-options strong { font-size: .82rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}