/* Grupo GL / site v2. IDV laranja de cantos abertos (ícone de 13/11/2026). */
:root {
  --ink: #0B0B0B;
  --ink-soft: #15171D;
  --graphite: #1F222C;
  --ivory: #F4F1EC;
  --ivory-deep: #E6E1D8;
  --signal: #FF8200;
  --signal-deep: #B33F04;
  --steel: #55575E;
  --mist: #A9ABB2;
  --line-dark: rgba(244, 241, 236, 0.14);
  --line-light: rgba(11, 11, 11, 0.16);
  --max: 1500px;
  --gutter: clamp(16px, 3vw, 40px);
  --section: clamp(96px, 11vw, 148px);
  --header: 72px;
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
  --display: "Archivo", "Arial Black", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: dark light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 8px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--ivory); font: 400 16px/1.6 var(--body); overflow-x: hidden; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 900; text-transform: uppercase; letter-spacing: -0.045em; line-height: 0.94; text-wrap: balance; }
p { margin: 0; }
em { font-style: normal; color: var(--signal); }
.mono { font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; line-height: 1.2; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--signal); color: var(--ink); padding: 12px 16px; font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 12px; }

.mk { fill: currentColor; }
.sq { fill: var(--sq, var(--signal)); }

/* Cantos abertos: a assinatura da IDV */
.corner { position: absolute; width: clamp(28px, 4vw, 56px); height: clamp(28px, 4vw, 56px); border: 0 solid var(--corner, var(--ivory)); pointer-events: none; z-index: 2; }
.corner-tl { top: 14px; left: 14px; border-top-width: 6px; border-left-width: 6px; }
.corner-tr { top: 14px; right: 14px; border-top-width: 6px; border-right-width: 6px; }
.corner-bl { bottom: 14px; left: 14px; border-bottom-width: 6px; border-left-width: 6px; }
.corner-br { bottom: 14px; right: 14px; border-bottom-width: 6px; border-right-width: 6px; }

/* Botões */
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 52px; padding: 0 22px; border: 0; border-radius: 0; font: 700 15px/1 var(--body); text-decoration: none; cursor: pointer; transition: background-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease); }
.button span { transition: transform .2s var(--ease); }
.button:hover span { transform: translate(3px, -3px); }
.button-signal { background: var(--signal); color: var(--ink); }
.button-signal:hover { background: var(--ivory); }
.button-dark { background: var(--ink); color: var(--ivory); }
.button-dark:hover { background: var(--graphite); }
.button-header { min-height: 46px; background: var(--ivory); color: var(--ink); font-size: 14px; }
.button-header:hover { background: var(--signal); }
.text-link { font-weight: 600; text-decoration: underline; text-decoration-color: var(--signal); text-decoration-thickness: 2px; text-underline-offset: 6px; padding: 12px 0; }
.text-link:hover { color: var(--signal); }

/* Cabeçalho */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header); display: flex; align-items: center; gap: 32px; padding: 0 var(--gutter); background: rgba(11, 11, 11, 0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line-dark); transition: box-shadow .2s; }
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(0, 0, 0, .35); }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; margin-right: auto; }
.brand-mark { width: 38px; height: 38px; color: var(--ivory); flex: none; }
.brand-type { display: grid; line-height: 1; }
.brand-type strong { font: 900 17px/1 var(--display); letter-spacing: -0.02em; }
.brand-type small { font: 600 9.5px/1.4 var(--mono); letter-spacing: 0.16em; color: var(--mist); margin-top: 3px; }
.desktop-nav { display: flex; gap: 28px; }
.desktop-nav a { font-size: 14px; font-weight: 500; text-decoration: none; color: var(--mist); padding: 10px 0; }
.desktop-nav a:hover { color: var(--ivory); }
.menu-button { display: none; width: 46px; height: 46px; border: 1px solid var(--line-dark); background: transparent; cursor: pointer; padding: 13px 11px; flex-direction: column; justify-content: space-between; }
.menu-button > span:not(.sr-only) { display: block; height: 2px; background: var(--ivory); transition: transform .2s, opacity .2s; }
.menu-button[aria-expanded="true"] > span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-button[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.mobile-nav { position: absolute; top: var(--header); left: 0; right: 0; background: var(--ink); border-bottom: 1px solid var(--line-dark); display: grid; padding: 8px var(--gutter) 20px; }
.mobile-nav[hidden] { display: none; }
.mobile-nav a { font: 900 28px/1 var(--display); text-transform: uppercase; letter-spacing: -0.03em; text-decoration: none; padding: 14px 0; border-bottom: 1px solid var(--line-dark); }
.mobile-nav a:last-child { color: var(--signal); border-bottom: 0; }

/* Trilho lateral */
.page-rail { position: fixed; right: 14px; top: 50%; transform: translateY(-50%); z-index: 40; display: grid; justify-items: center; gap: 10px; font: 600 10px/1 var(--mono); color: var(--mist); }
.rail-current { color: var(--signal); }
.rail-track { width: 2px; height: 140px; background: rgba(128, 128, 128, .35); position: relative; }
.rail-track i { position: absolute; inset: 0 0 auto; height: 0; background: var(--signal); }

/* Seções */
section { position: relative; padding: var(--section) var(--gutter); }
section > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section-light, .section-paper { background: var(--ivory); color: var(--ink); }
.section-paper { background: var(--ivory-deep); }
.section-dark { background: var(--ink); color: var(--ivory); }
.section-light em, .section-paper em { color: var(--signal-deep); }
.section-label { display: flex; gap: 14px; align-items: center; margin-bottom: clamp(40px, 6vw, 80px); border-top: 1px solid var(--line-light); padding-top: 16px; }
.section-label span { font: 600 11px/1 var(--mono); background: var(--ink); color: var(--ivory); padding: 6px 8px; }
.section-label p { font: 600 11px/1 var(--mono); letter-spacing: 0.14em; color: var(--steel); }
.section-label-dark { border-top-color: var(--line-dark); }
.section-label-dark span { background: var(--signal); color: var(--ink); }
.section-label-dark p { color: var(--mist); }
.eyebrow { font: 600 11px/1.3 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--signal-deep); margin-bottom: 18px; display: flex; gap: 10px; align-items: center; }
.eyebrow span { color: var(--ink); background: var(--signal); padding: 4px 6px; }
.eyebrow-dark { color: var(--signal); }
.eyebrow-ink { color: var(--ink); }
.lead { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.5; font-weight: 500; }

/* Herói */
.hero { min-height: 100svh; padding-top: calc(var(--header) + clamp(32px, 6vw, 72px)); padding-bottom: 0; display: flex; flex-direction: column; background: var(--ink); }
.hero .eyebrow { color: var(--mist); }
.hero-grid { flex: 1; width: 100%; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: clamp(28px, 4vw, 64px); align-items: stretch; padding-bottom: clamp(40px, 6vw, 72px); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; }
.hero h1 { font-size: clamp(40px, 5.5vw, 96px); display: grid; margin-bottom: 28px; }
.hero h1 span { display: block; }
.title-signal { color: var(--signal); }
.hero-lead { font-size: clamp(18px, 1.6vw, 21px); color: #D9D6D0; max-width: 34em; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; }

.hero-stage { position: relative; min-height: 520px; background: var(--graphite); overflow: hidden; display: grid; grid-template-rows: auto 1fr auto; padding: clamp(36px, 4vw, 56px); }
.stage-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); background-size: 48px 48px; opacity: .45; mask-image: linear-gradient(180deg, #000 30%, transparent 100%); -webkit-mask-image: linear-gradient(180deg, #000 30%, transparent 100%); }
.stage-top { position: relative; display: flex; justify-content: space-between; color: var(--mist); }
.live { display: inline-flex; align-items: center; gap: 8px; color: var(--ivory); }
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); animation: pulse 1.6s infinite; }
@keyframes pulse { 50% { opacity: .25; } }
.stage-bars { position: absolute; left: clamp(36px, 4vw, 56px); right: 48%; bottom: 30%; height: 40%; display: flex; align-items: flex-end; gap: 6%; }
.stage-bars div { flex: 1; height: var(--h); background: rgba(244, 241, 236, .24); transform-origin: bottom; animation: grow 1.2s var(--ease) both; }
.stage-bars div:nth-child(n) { animation-delay: calc(var(--i, 0) * 60ms); }
.stage-bars .is-signal { background: var(--signal); }
@keyframes grow { from { transform: scaleY(0); } }
.hero-console { position: relative; align-self: end; justify-self: end; background: var(--ink); border: 1px solid var(--line-dark); padding: 22px 24px; width: min(300px, 100%); }
.hero-console p { color: var(--signal); margin-bottom: 12px; }
.hero-console strong { display: block; font: 900 24px/1 var(--display); text-transform: uppercase; letter-spacing: -0.03em; margin-bottom: 16px; }
.hero-console ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.hero-console li { display: flex; gap: 12px; font-size: 14px; border-top: 1px solid var(--line-dark); padding-top: 8px; }
.hero-console li span { font: 600 11px/1.6 var(--mono); color: var(--mist); }
.hero-manifesto { position: relative; font: 900 clamp(18px, 1.7vw, 24px)/1.05 var(--display); text-transform: uppercase; letter-spacing: -0.03em; margin-top: 24px; }
.hero-manifesto span { color: var(--mist); }
.stage-square { position: absolute; right: calc(14px + clamp(28px, 4vw, 56px) + 10px); bottom: calc(14px + 6px + 10px); width: 22px; height: 22px; background: var(--signal); z-index: 2; }
.hero-ticker { margin: 0 calc(var(--gutter) * -1); max-width: none; border-top: 1px solid var(--line-dark); overflow: hidden; background: var(--signal); color: var(--ink); }
.hero-ticker div { display: flex; align-items: center; gap: 28px; width: max-content; padding: 16px 0; animation: ticker 36s linear infinite; }
.hero-ticker span { font: 900 clamp(18px, 2vw, 26px)/1 var(--display); text-transform: uppercase; letter-spacing: -0.02em; white-space: nowrap; }
.hero-ticker i { width: 12px; height: 12px; background: var(--ink); flex: none; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* Tese */
.thesis-intro { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(56px, 7vw, 96px); }
.thesis-intro h2 { font-size: clamp(42px, 6.2vw, 96px); }
.thesis-intro div { display: grid; gap: 18px; color: #2A2B30; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line-light); }
.principles article { padding: clamp(22px, 2.4vw, 32px); min-height: 300px; display: flex; flex-direction: column; gap: 16px; border-right: 1px solid var(--line-light); background: var(--ivory); }
.principles article:last-child { border-right: 0; }
.principles .mono { color: var(--steel); }
.principles h3 { font-size: clamp(30px, 3vw, 44px); margin-top: auto; }
.principles p { color: #3A3B40; }
.principles .is-signal { background: var(--ink); color: var(--ivory); position: relative; }
.principles .is-signal .mono { color: var(--signal); }
.principles .is-signal h3 { color: var(--signal); }
.principles .is-signal p { color: #D9D6D0; }

/* Gargalo */
.bottleneck-heading { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.bottleneck-heading h2 { font-size: clamp(44px, 7.2vw, 112px); }
.bottleneck-heading p { color: #CFCCC6; font-size: 18px; }
.flow-shell { border: 1px solid var(--line-dark); background: var(--ink-soft); }
.flow-toolbar { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; padding: 14px; border-bottom: 1px solid var(--line-dark); }
.flow-toggle { display: flex; background: var(--signal); padding: 4px; gap: 4px; }
.flow-toggle button { min-height: 44px; padding: 0 16px; border: 0; background: transparent; color: var(--ink); font-weight: 700; font-size: 14px; cursor: pointer; }
.flow-toggle button[aria-pressed="true"] { background: var(--ink); color: var(--ivory); }
.flow-key { display: flex; flex-wrap: wrap; gap: 18px; font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mist); }
.flow-key span { display: inline-flex; gap: 8px; align-items: center; }
.flow-key i { width: 9px; height: 9px; border-radius: 50%; }
.dot-moving { background: var(--ivory); }
.dot-value { background: var(--signal); }
.dot-lost { background: #4A4D57; }
.flow-play { width: 44px; height: 44px; border: 1px solid var(--line-dark); background: transparent; cursor: pointer; }
.flow-play:hover { border-color: var(--signal); }
.flow-canvas-wrap { position: relative; height: clamp(260px, 32vw, 420px); }
.flow-canvas-wrap canvas { width: 100%; height: 100%; }
.flow-watermark { position: absolute; right: 16px; bottom: 14px; color: #4A4D57; }
.flow-caption { display: grid; grid-template-columns: 200px 1fr; gap: 16px; padding: 18px; border-top: 1px solid var(--line-dark); align-items: baseline; }
.flow-caption .mono { color: var(--signal); }
.flow-message { font-size: 17px; }

/* Método */
.method-intro { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.method-intro h2 { font-size: clamp(72px, 13vw, 200px); letter-spacing: -0.06em; }
.method-intro > p { font-size: 18px; color: #2A2B30; }
.method-shell { border: 1px solid var(--line-light); background: var(--ivory); }
.method-tabs { display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--line-light); }
.method-tab { display: grid; gap: 4px; justify-items: start; text-align: left; padding: 18px; min-height: 120px; border: 0; border-right: 1px solid var(--line-light); background: transparent; cursor: pointer; color: var(--ink); transition: background-color .2s; }
.method-tab:last-child { border-right: 0; }
.method-tab b { font: 600 11px/1 var(--mono); color: var(--steel); }
.method-tab strong { font: 900 40px/1 var(--display); }
.method-tab span { font-weight: 600; font-size: 14px; }
.method-tab:hover { background: var(--ivory-deep); }
.method-tab.is-active { background: var(--ink); color: var(--ivory); }
.method-tab.is-active b { color: var(--signal); }
.method-tab.is-active strong { color: var(--signal); }
.method-panel { display: grid; grid-template-columns: 1.3fr 0.7fr; min-height: 360px; }
.method-content { padding: clamp(28px, 4vw, 56px); display: flex; flex-direction: column; gap: 18px; }
.method-content .mono { color: var(--signal-deep); }
.method-content h3 { font-size: clamp(32px, 4vw, 60px); }
.method-content p:not(.mono) { font-size: 18px; color: #2A2B30; max-width: 36em; }
.method-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.method-tools span { font: 600 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; border: 1px solid var(--ink); padding: 10px 12px; }
.method-letter { position: relative; background: var(--ink); color: var(--signal); display: grid; place-items: center; overflow: hidden; --corner: var(--ivory); }
.method-letter > span:not(.corner) { font: 900 clamp(140px, 16vw, 240px)/0.8 var(--display); transition: transform .4s var(--ease), opacity .3s; }
.method-letter small { position: absolute; left: 0; right: 0; bottom: 34px; text-align: center; font: 600 10px/1 var(--mono); letter-spacing: .16em; color: var(--mist); }
.method-panel.is-switching .method-content, .method-panel.is-switching .method-letter > span:not(.corner) { opacity: 0; transform: translateY(8px); }
.method-content { transition: opacity .25s, transform .25s var(--ease); }

/* Como entramos */
.operator { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(32px, 6vw, 96px); align-items: center; max-width: none; }
.operator > * { margin: 0; }
.operator-media { position: relative; background: var(--graphite); aspect-ratio: 1; padding: clamp(28px, 4vw, 56px); }
.blocks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; height: 100%; }
.blocks i { background: rgba(244, 241, 236, .08); border: 1px solid var(--line-dark); transition: transform .5s var(--ease), background-color .5s; }
.blocks i.e { background: transparent; border-style: dashed; }
.blocks i.o { background: var(--ivory); }
.blocks i.s { background: var(--signal); border-color: var(--signal); }
.operator-media:hover .blocks i.o { transform: translate(-4px, -4px); }
.operator-media .mono { position: absolute; left: 14px; bottom: -26px; color: var(--mist); }
.operator-copy h2 { font-size: clamp(36px, 4.6vw, 72px); margin-bottom: 24px; }
.operator-copy > p { font-size: 18px; color: #CFCCC6; max-width: 34em; margin-bottom: 32px; }
.protocol-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line-dark); }
.protocol-list li { padding: 16px 14px; border-right: 1px solid var(--line-dark); display: grid; gap: 18px; }
.protocol-list li:last-child { border-right: 0; background: var(--signal); color: var(--ink); }
.protocol-list b { font: 600 11px/1 var(--mono); color: var(--signal); }
.protocol-list li:last-child b { color: var(--ink); }
.protocol-list span { font-weight: 700; font-size: 14px; line-height: 1.25; }

/* Parcerias */
.partnership-heading { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.partnership-heading h2 { font-size: clamp(40px, 6vw, 92px); }
.partnership-heading p { font-size: 18px; color: #2A2B30; }
.partnership-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-light); }
.partnership-grid article { background: var(--ivory); padding: clamp(24px, 3vw, 40px); min-height: 340px; display: flex; flex-direction: column; gap: 16px; border-right: 1px solid var(--line-light); }
.partnership-grid article:last-child { border-right: 0; }
.partnership-grid .mono { color: var(--steel); }
.partnership-grid h3 { font-size: clamp(36px, 3.6vw, 56px); margin-top: 24px; }
.partnership-grid p { color: #3A3B40; }
.partnership-grid b { margin-top: auto; font: 600 11px/1 var(--mono); letter-spacing: .14em; display: flex; justify-content: space-between; border-top: 1px solid var(--line-light); padding-top: 16px; }
.partnership-grid .is-signal { background: var(--ink); color: var(--ivory); }
.partnership-grid .is-signal .mono, .partnership-grid .is-signal b { color: var(--signal); border-top-color: var(--line-dark); }
.partnership-grid .is-signal p { color: #D9D6D0; }

/* CTA */
.cta { background: var(--signal); color: var(--ink); display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(32px, 6vw, 96px); align-items: center; max-width: none; }
.cta > * { margin: 0; }
.cta-media { position: relative; background: var(--ink); aspect-ratio: 1; display: grid; place-items: center; }
.cta-media svg { width: 58%; color: var(--ivory); }
.cta-media .mono { position: absolute; left: 16px; bottom: 16px; color: var(--mist); }
.cta-copy h2 { font-size: clamp(36px, 5vw, 80px); margin-bottom: 24px; }
.cta-copy > p:not(.eyebrow) { font-size: 19px; font-weight: 500; max-width: 32em; margin-bottom: 32px; }

/* Rodapé */
.site-footer { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; justify-content: space-between; padding: 36px var(--gutter); border-top: 1px solid var(--line-dark); color: var(--mist); font-size: 14px; }
.footer-brand { display: flex; gap: 12px; align-items: center; color: var(--ivory); }
.footer-brand div { display: grid; }
.footer-brand strong { font: 900 17px/1 var(--display); }
.footer-brand span { font: 600 9.5px/1.4 var(--mono); letter-spacing: .16em; color: var(--mist); margin-top: 3px; }

/* Diálogo */
.brief-dialog { width: min(560px, calc(100vw - 32px)); border: 0; border-radius: 0; padding: clamp(28px, 4vw, 44px); background: var(--ivory); color: var(--ink); box-shadow: 0 30px 80px rgba(0, 0, 0, .45); }
.brief-dialog::backdrop { background: rgba(11, 11, 11, .78); }
.brief-dialog h2 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 24px; }
.brief-dialog ol { margin: 0 0 20px; padding-left: 22px; display: grid; gap: 10px; font-size: 17px; font-weight: 500; }
.brief-dialog ol li::marker { font-family: var(--mono); color: var(--signal-deep); font-weight: 600; }
.dialog-note { color: var(--steel); margin-bottom: 24px; }
.dialog-close { position: absolute; top: 10px; right: 10px; width: 44px; height: 44px; border: 0; background: transparent; font-size: 28px; cursor: pointer; }
.copy-status { min-height: 1.6em; margin-top: 12px; font: 600 12px/1.6 var(--mono); color: var(--signal-deep); }

/* Revelação */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Responsivo */
@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .menu-button { display: flex; }
  .page-rail { display: none; }
  .hero-grid, .thesis-intro, .bottleneck-heading, .method-intro, .partnership-heading { grid-template-columns: minmax(0, 1fr); }
  .hero-stage { min-height: 460px; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .principles article:nth-child(2) { border-right: 0; }
  .principles article:nth-child(-n+2) { border-bottom: 1px solid var(--line-light); }
  .operator, .cta { grid-template-columns: minmax(0, 1fr); }
  .operator-media, .cta-media { max-width: 520px; width: 100%; }
}
@media (max-width: 720px) {
  :root { --header: 64px; }
  .hero h1 { font-size: 9.2vw; }
  .button-header { display: none; }
  .brand-type small { display: none; }
  .hero-stage { min-height: 420px; padding: 34px 28px; }
  .stage-bars { bottom: 40%; }
  .hero-console { justify-self: stretch; width: auto; }
  .principles, .partnership-grid { grid-template-columns: 1fr; }
  .principles article, .partnership-grid article { border-right: 0; border-bottom: 1px solid var(--line-light); min-height: 0; }
  .principles article:last-child, .partnership-grid article:last-child { border-bottom: 0; }
  .principles h3 { margin-top: 18px; }
  .flow-toolbar { justify-content: flex-start; }
  .flow-toggle { width: 100%; }
  .flow-toggle button { flex: 1; padding: 0 8px; }
  .flow-caption { grid-template-columns: 1fr; }
  .method-tabs { grid-template-columns: repeat(2, 1fr); }
  .method-tab { min-height: 92px; border-bottom: 1px solid var(--line-light); }
  .method-tab:nth-child(2n) { border-right: 0; }
  .method-tab:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .method-panel { grid-template-columns: 1fr; }
  .method-letter { min-height: 220px; }
  .protocol-list { grid-template-columns: 1fr; }
  .protocol-list li { border-right: 0; border-bottom: 1px solid var(--line-dark); grid-template-columns: 40px 1fr; gap: 12px; align-items: baseline; }
  .protocol-list li:last-child { border-bottom: 0; }
  .site-footer { flex-direction: column; align-items: flex-start; }
}

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

.cta-actions { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
.text-link-ink { background: none; border: 0; cursor: pointer; font: 600 16px/1.4 var(--body); color: var(--ink); text-decoration-color: var(--ink); }
.text-link-ink:hover { color: var(--ink); text-decoration-color: var(--ivory); }