/* ALT Interactive — site styles (v2, 28 Oct 2026)
   Tokens from brand/alt/DESIGN.md v2.0. Obsidian (dark) is the default state;
   .section--bone switches a section to the Bone counter-state.
   Structure: tokens → base → type → buttons → nav → sections → components → footer → motion */

:root {
  /* locked five */
  --alt-obsidian: #0D1014;
  --alt-bone: #F6F5F0;
  --alt-signal: #A7F267;
  --alt-graphite: #66737B;
  --alt-mist: #D7DDE4;
  /* derived */
  --alt-obsidian-raised: #14181D;
  --alt-obsidian-high: #1B2026;
  --alt-obsidian-line: #242A31;
  --alt-bone-raised: #FFFFFF;
  --alt-bone-low: #ECEAE3;
  --alt-signal-deep: #6FB83A;
  --alt-signal-ink: #2F5A14;
  --alt-signal-glow: rgba(167, 242, 103, 0.18);

  /* state tokens — dark default */
  --bg: var(--alt-obsidian);
  --bg-raised: var(--alt-obsidian-raised);
  --bg-high: var(--alt-obsidian-high);
  --line: var(--alt-obsidian-line);
  --fg: var(--alt-bone);
  --fg-2: var(--alt-mist);
  --fg-3: var(--alt-graphite);
  --accent: var(--alt-signal);
  --accent-text: var(--alt-signal);

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  --radius: 8px;
  --max: 1200px;
  --gutter: 120px;
  --section-y: 112px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

.section--bone {
  --bg: var(--alt-bone);
  --bg-raised: var(--alt-bone-raised);
  --bg-high: var(--alt-bone-low);
  --line: var(--alt-mist);
  --fg: var(--alt-obsidian);
  --fg-2: #3A4249;
  --fg-3: #5A6670;
  --accent-text: var(--alt-signal-deep);
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--alt-obsidian); color: var(--fg);
  font-family: var(--font-body); font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; } li { list-style: none; }
strong { font-weight: 600; }
code { font-family: var(--font-mono); font-size: 0.9em; }

.skip { position: absolute; left: 16px; top: -100px; padding: 8px 12px; background: var(--alt-signal); color: var(--alt-signal-ink); border-radius: var(--radius); font-weight: 600; z-index: 100; }
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--alt-signal); outline-offset: 2px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
@media (max-width: 1024px) { :root { --gutter: 48px; --section-y: 80px; } }
@media (max-width: 640px)  { :root { --gutter: 16px; --section-y: 56px; } }

.br-wide { display: none; }
@media (min-width: 1025px) { .br-wide { display: inline; } }

/* ---------- type ---------- */
.kicker { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); line-height: 1.4; }
.kicker--sm { font-size: 11px; }
.kicker--signal { color: var(--accent-text); }
.statement { font-family: var(--font-display); font-weight: 700; font-size: 112px; line-height: 0.9; letter-spacing: -0.03em; text-transform: uppercase; }
.title { font-family: var(--font-display); font-weight: 700; font-size: 56px; line-height: 0.96; letter-spacing: -0.02em; text-transform: uppercase; }
.title--xl { font-size: 72px; line-height: 0.92; letter-spacing: -0.03em; }
.title--sm { font-size: 40px; line-height: 1; }
.title--pair { font-size: 46px; line-height: 1.02; max-width: 1100px; }
.lead { font-size: 20px; line-height: 1.45; color: var(--fg-2); }
.body-lead { font-size: 18px; line-height: 1.5; color: var(--fg-2); max-width: 640px; }
.card__title { font-family: var(--font-display); font-weight: 600; font-size: 24px; line-height: 1.1; letter-spacing: -0.01em; color: var(--fg); }
.card__body { font-size: 14px; line-height: 1.5; color: var(--fg-2); }
.closing { font-family: var(--font-display); font-weight: 600; font-size: 24px; line-height: 1.2; letter-spacing: -0.01em; color: var(--fg); max-width: 760px; margin-top: 56px; }
.closing--inline { margin-top: 8px; font-size: 20px; }
.hero__sub { font-family: var(--font-display); font-weight: 600; font-size: 28px; line-height: 1.1; letter-spacing: -0.01em; text-transform: uppercase; color: var(--alt-mist); }
.hero__sub--dark { color: var(--fg-2); font-size: 24px; }

@media (max-width: 1024px) {
  .statement { font-size: 84px; }
  .title { font-size: 44px; }
  .title--xl { font-size: 56px; }
  .title--sm { font-size: 32px; }
  .title--pair { font-size: 38px; }
  .hero__sub { font-size: 22px; }
}
@media (max-width: 640px) {
  .statement { font-size: 54px; }
  .title { font-size: 34px; }
  .title--xl { font-size: 40px; }
  .title--sm { font-size: 28px; }
  .title--pair { font-size: 30px; }
  .lead { font-size: 17px; }
  .body-lead { font-size: 16px; }
  .closing { font-size: 20px; margin-top: 32px; }
  .hero__sub { font-size: 18px; }
}

.slash-rule { width: 120px; height: 2px; background: linear-gradient(90deg, rgba(167,242,103,0) 0%, #A7F267 50%, rgba(167,242,103,0) 100%); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 20px; border-radius: var(--radius); font-family: var(--font-body); font-weight: 600; font-size: 15px; letter-spacing: 0.01em; border: 1px solid transparent; transition: background-color .15s, border-color .15s, color .15s; white-space: nowrap; cursor: pointer; }
.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }
.btn--primary { background: var(--alt-signal); color: var(--alt-signal-ink); }
.btn--primary:hover { background: var(--alt-signal-deep); }
.btn--primary:disabled { opacity: .5; cursor: not-allowed; }
.btn--secondary { color: var(--fg); border-color: rgba(215,221,228,0.4); }
.btn--secondary:hover { border-color: var(--alt-signal); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
@media (max-width: 640px) { .btn { height: 48px; } .actions { flex-direction: column; } .actions .btn { width: 100%; } }

/* ---------- nav ---------- */
.nav__mark { height: 28px; width: auto; overflow: visible; display: block; }
.nav__slash { animation: cursor-blink 1.1s step-end infinite; }
@keyframes cursor-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.nav { position: sticky; top: 0; z-index: 50; background: rgba(13,16,20,0.92); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--alt-obsidian-line); }
.nav__inner { height: 64px; padding: 0 48px; display: flex; align-items: center; justify-content: space-between; }
.nav__brand img, .nav__brand .nav__mark { height: 28px; width: auto; }
.nav__menu { display: flex; align-items: center; gap: 28px; font-weight: 500; font-size: 14px; }
.nav__menu a:not(.btn) { position: relative; padding: 4px 0; color: var(--alt-bone); }
.nav__menu a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--alt-signal); transform: scaleX(0); transform-origin: left; transition: transform .2s var(--ease); }
.nav__menu a:not(.btn):hover::after, .nav__menu a:not(.btn).is-active::after { transform: scaleX(1); }
.nav__toggle { display: none; width: 44px; height: 44px; padding: 0; background: transparent; border: 1px solid var(--alt-obsidian-line); border-radius: var(--radius); color: var(--alt-bone); align-items: center; justify-content: center; cursor: pointer; }
.nav__toggle .bar1, .nav__toggle .bar2 { transition: transform .2s; transform-origin: center; }
.nav__toggle[aria-expanded="true"] .bar1 { transform: translateY(4px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .bar2 { transform: translateY(-4px) rotate(-45deg); }
@media (max-width: 900px) {
  .nav__inner { height: 56px; padding: 0 16px; }
  .nav__brand img, .nav__brand .nav__mark { height: 24px; }
  .nav__toggle { display: flex; }
  .nav__menu { display: none; position: absolute; left: 0; right: 0; top: 56px; flex-direction: column; align-items: stretch; gap: 0; background: var(--alt-obsidian); border-bottom: 1px solid var(--alt-obsidian-line); padding: 8px 16px 16px; }
  .nav.is-open .nav__menu { display: flex; }
  .nav__menu a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--alt-obsidian-line); font-size: 16px; }
  .nav__menu a:not(.btn)::after { display: none; }
  .nav__menu .btn { margin-top: 16px; }
  html { scroll-padding-top: 64px; }
}

/* ---------- sections ---------- */
.section { padding: var(--section-y) 0; background: var(--bg); color: var(--fg); }
.section--rule { border-top: 1px solid var(--line); }
.section--flush { padding-top: 0; }
.section__head { display: flex; flex-direction: column; gap: 20px; max-width: 980px; margin-bottom: 64px; }
.section__head--wide { max-width: 1100px; }
.section__head--rule { border-top: 1px solid var(--line); padding-top: var(--section-y); }
@media (max-width: 640px) { .section__head { margin-bottom: 40px; gap: 16px; } }

/* ---------- 01 hero ---------- */
.hero { position: relative; padding: 0 0 96px; min-height: calc(100vh - 64px); display: flex; flex-direction: column; }
/* Opening sequence (see index.html → .intro). The video sits over the hero area only; the nav stays above and usable. */
.intro { position: absolute; inset: 0; z-index: 2; background: var(--alt-obsidian); opacity: 1; transition: opacity .7s var(--ease); }
.intro[hidden] { display: none; }
.intro.is-fading { opacity: 0; pointer-events: none; }
.intro__video { display: block; width: 100%; height: 100%; object-fit: contain; object-position: center; background: var(--alt-obsidian); outline: none; border: 0; }
@media (max-aspect-ratio: 3/4) { .intro__video { object-fit: cover; } } /* portrait phones: fill the hero; the logo sits in the centre 20% of the frame and stays uncropped */
.intro__skip { position: absolute; right: var(--gutter); bottom: 28px; height: 32px; padding: 0 12px; background: transparent; border: 1px solid var(--alt-obsidian-line); border-radius: var(--radius); color: var(--alt-graphite); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; cursor: pointer; opacity: 0; transition: opacity .4s, color .15s, border-color .15s; }
.intro.is-playing .intro__skip { opacity: 1; }
.intro__skip:hover, .intro__skip:focus-visible { color: var(--alt-bone); border-color: var(--alt-graphite); }
.hero--intro .hero__body { opacity: 0; visibility: hidden; }
.hero--revealed .hero__body { opacity: 1; visibility: visible; transition: opacity .9s var(--ease); }
.hero .container { display: flex; flex-direction: column; flex: 1; }

.hero__body { display: flex; flex-direction: column; gap: 24px; padding-top: 96px; flex: 1; justify-content: center; }
.hero__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; max-width: 1000px; }
@media (max-width: 1024px) { .hero__cols { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  .hero { padding-bottom: 48px; min-height: 0; }
    .hero__body { padding-top: 56px; gap: 20px; }
}

/* ---------- 02 the alternative ---------- */
.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-bottom: 96px; }
.compare__col { display: flex; flex-direction: column; gap: 16px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-raised); }
.compare__col--alt { border-top: 2px solid var(--alt-signal); }
.org { height: 300px; display: flex; flex-direction: column; justify-content: center; gap: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.org__top { border: 1px solid var(--line); border-radius: 4px; padding: 10px; text-align: center; background: var(--bg-high); }
.org__row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.org__row span { border: 1px solid var(--line); border-radius: 4px; padding: 8px 4px; text-align: center; color: var(--fg-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.org__game { border: 1px dashed var(--fg-3); border-radius: 4px; padding: 10px; text-align: center; margin-top: 10px; color: var(--fg-3); }
.org--alt { align-items: center; }
.org__ring { position: relative; width: 280px; height: 280px; border: 1px dashed var(--line); border-radius: 50%; }
.org__core { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 128px; height: 128px; border-radius: 50%; background: var(--alt-signal); color: var(--alt-signal-ink); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; box-shadow: 0 0 0 10px var(--alt-signal-glow); }
.org__core-label { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; text-transform: uppercase; line-height: 1; }
.org__core-sub { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 6px; opacity: .85; }
.org__node { position: absolute; border: 1px solid var(--line); background: var(--bg); border-radius: 4px; padding: 6px 10px; white-space: nowrap; }
.org__node--1 { left: 50%; top: 0; transform: translate(-50%, -50%); }
.org__node--2 { right: 0; top: 50%; transform: translate(40%, -50%); }
.org__node--3 { left: 50%; bottom: 0; transform: translate(-50%, 50%); }
.org__node--4 { left: 0; top: 50%; transform: translate(-40%, -50%); }
.principles { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; }
.principles > h3 { grid-column: span 4; }
.principles__list { grid-column: 6 / span 7; display: flex; flex-direction: column; }
.principles__list li { position: relative; padding: 20px 0 20px 28px; border-top: 1px solid var(--line); }
.principles__list li::before, .functions li::before { content: "/"; position: absolute; left: 4px; font-family: var(--font-mono); font-size: 16px; color: var(--accent-text); }
.principles__list li::before { top: 22px; }
.principles__list li:last-child { border-bottom: 1px solid var(--line); }
.principles__list strong { display: block; font-family: var(--font-display); font-weight: 600; font-size: 20px; line-height: 1.15; margin-bottom: 6px; }
.principles__list p { font-size: 14px; color: var(--fg-2); }
@media (max-width: 1024px) {
  .compare { grid-template-columns: 1fr; margin-bottom: 64px; }
  .principles > h3, .principles__list { grid-column: span 12; }
  .principles > h3 { margin-bottom: 8px; }
}
@media (max-width: 640px) {
  .compare__col { padding: 20px; }
  .org__ring { width: 220px; height: 220px; } .org__core { width: 104px; height: 104px; } .org__core-label { font-size: 15px; }
  .org__node--2 { right: 0; top: 24%; transform: translate(10%, -50%); } .org__node--4 { left: 0; top: 76%; transform: translate(-10%, -50%); }
  .org__row { grid-template-columns: repeat(3, minmax(0, 1fr)); } .org__row span:nth-child(n+4) { display: none; }
}

/* ---------- 03 how ALT works ---------- */
.model { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: center; }
.model__diagram { grid-column: span 7; position: relative; aspect-ratio: 1; max-width: 600px; }
.model__lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.model__core { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 160px; height: 160px; border-radius: 50%; background: var(--alt-signal); color: var(--alt-signal-ink); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; box-shadow: 0 0 0 12px var(--alt-signal-glow); }
.model__core .org__core-label { font-size: 22px; }
.model__node { position: absolute; width: 150px; transform: translate(-50%, -50%); text-align: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1.35; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; background: var(--bg-raised); color: var(--fg); }
.model__node[style*="--a:1"] { left: 50%; top: 11.6%; }
.model__node[style*="--a:2"] { left: 83.2%; top: 30.8%; }
.model__node[style*="--a:3"] { left: 83.2%; top: 69.2%; }
.model__node[style*="--a:4"] { left: 50%; top: 88.3%; }
.model__node[style*="--a:5"] { left: 16.8%; top: 69.2%; }
.model__node[style*="--a:6"] { left: 16.8%; top: 30.8%; }
.model__alt { position: absolute; left: 0; bottom: 0; display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
@media (max-width: 1024px) {
  .model__diagram { grid-column: span 12; margin: 0 auto 32px; width: 100%; }
  }
@media (max-width: 640px) {
  .model__diagram { display: none; }
}

.chev { color: var(--alt-signal); animation: cursor-blink 1.1s step-end infinite; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 03b producer model ---------- */
.functions { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; border-top: 2px solid var(--alt-signal-deep); padding-top: 32px; margin-bottom: 96px; }
.functions li { position: relative; display: flex; flex-direction: column; gap: 10px; padding-left: 20px; }
.functions li::before { top: 4px; }
.functions .parallel { grid-column: 8 / span 5; display: flex; flex-direction: column; gap: 20px; }
.parallel__table { width: 100%; border-collapse: collapse; font-size: 14px; }
.parallel__caption { caption-side: top; text-align: left; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); padding-bottom: 12px; }
.parallel__table th { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); font-weight: 500; text-align: left; padding: 10px 12px 10px 0; background: var(--bg-high); }
.parallel__table th + th, .parallel__table td + td { padding-left: 12px; }
.parallel__table th:first-child { padding-left: 12px; }
.parallel__table td { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--fg-2); }
.parallel__table td:first-child { padding-left: 12px; color: var(--fg-3); width: 42%; }
.parallel__table td + td { color: var(--fg); font-weight: 500; }
.parallel__note { max-width: 420px; }
@media (max-width: 1024px) { .functions { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 64px; } .parallel { grid-column: span 12; } }
@media (max-width: 640px) { .functions { grid-template-columns: 1fr; gap: 20px; padding-top: 24px; } }

/* ---------- 04 AI era ---------- */
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; border-top: 2px solid var(--alt-signal-deep); padding-top: 32px; }
.trio__col { display: flex; flex-direction: column; gap: 12px; }
@media (max-width: 1024px) { .trio { grid-template-columns: 1fr; gap: 32px; } }

/* ---------- 05 partners ---------- */
.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.paths--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.path { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; min-height: 280px; display: flex; flex-direction: column; justify-content: space-between; gap: 16px; color: var(--fg); transition: border-color .2s, transform .3s var(--ease); }
.path > div { display: flex; flex-direction: column; gap: 10px; }
.path:hover { border-color: var(--alt-signal); transform: translateY(-2px); }
.path__title { font-family: var(--font-display); font-weight: 600; font-size: 24px; line-height: 1.05; letter-spacing: -0.01em; }
.path__cta { font-weight: 600; font-size: 14px; color: var(--accent-text); }
@media (max-width: 1024px) { .paths, .paths--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .path { min-height: 0; } }
@media (max-width: 640px) { .paths, .paths--4 { grid-template-columns: 1fr; gap: 12px; } .path { padding: 20px; } .path__title { font-size: 20px; } }

/* ---------- 06 players ---------- */
.players { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: start; }
.players__copy { grid-column: span 7; display: flex; flex-direction: column; gap: 20px; }
.ways { grid-column: 9 / span 4; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.ways li { padding: 14px 0 14px 28px; border-bottom: 1px solid var(--line); position: relative; font-size: 15px; }
.ways li::before { content: "/"; position: absolute; left: 4px; top: 13px; font-family: var(--font-mono); color: var(--alt-signal); }
@media (max-width: 1024px) { .players__copy, .ways { grid-column: span 12; } }

/* ---------- 07 ALT Nation ---------- */
.nation { background: var(--alt-obsidian); color: var(--alt-bone); border-top: 1px solid var(--alt-obsidian-line); border-bottom: 1px solid var(--alt-obsidian-line); padding: var(--section-y) 0; position: relative; overflow: hidden; }
.nation::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(-58deg, transparent 0 56px, rgba(167,242,103,0.05) 56px 58px); pointer-events: none; }
.nation__inner { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: center; }
.nation__mark { grid-column: span 12; display: flex; align-items: baseline; gap: 0; font-family: var(--font-display); font-weight: 700; font-size: clamp(64px, 11vw, 160px); line-height: 0.85; letter-spacing: -0.04em; text-transform: uppercase; margin-bottom: 48px; }
.nation__word--2 { color: var(--alt-signal); }
.nation__slash { display: inline-block; flex: 0 0 auto; width: max(0.1em, 8px); height: 0.95em; background: var(--alt-signal); transform: skewX(-18deg); margin: 0 0.12em 0 0.06em; align-self: center; }
.nation__body { grid-column: span 8; display: flex; flex-direction: column; gap: 20px; }
.nation__line { font-family: var(--font-display); font-weight: 600; font-size: 28px; line-height: 1.1; text-transform: uppercase; letter-spacing: -0.01em; color: var(--alt-mist); }
.signup { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; max-width: 560px; }
.signup__label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--alt-graphite); }
.signup__row { display: flex; gap: 10px; }
.signup__input { flex: 1; min-width: 0; height: 44px; padding: 0 14px; background: var(--alt-obsidian-high); border: 1px solid var(--alt-obsidian-line); border-radius: var(--radius); color: var(--alt-bone); font: 500 15px var(--font-body); }
.signup__input::placeholder { color: var(--alt-graphite); }
.signup__input:focus { outline: none; border-color: var(--alt-signal); box-shadow: 0 0 0 3px var(--alt-signal-glow); }
.signup__input:disabled { opacity: .6; }
.signup__note { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--alt-graphite); line-height: 1.5; }
.signup__note a { color: var(--alt-mist); text-decoration: underline; text-underline-offset: 3px; }
.signup__note a:hover { color: var(--alt-signal); }
@media (max-width: 1024px) { .nation__body { grid-column: span 12; } }
@media (max-width: 640px) { .nation__line { font-size: 20px; } .signup__row { flex-direction: column; } .signup__input, .signup .btn { width: 100%; } .nation__mark { margin-bottom: 32px; } }

/* ---------- 08 our work ---------- */
.work__band { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.work__cell { padding: 48px 28px; font-family: var(--font-display); font-weight: 700; font-size: 28px; line-height: 1; letter-spacing: -0.02em; text-transform: uppercase; background: var(--bg-raised); border-right: 1px solid var(--line); }
.work__cell:last-child { border-right: 0; }
.work__cell--signal { background: var(--alt-signal); color: var(--alt-signal-ink); }
@media (max-width: 1024px) { .work__band { grid-template-columns: 1fr; } .work__cell { border-right: 0; border-bottom: 1px solid var(--line); padding: 28px 20px; font-size: 22px; } .work__cell:last-child { border-bottom: 0; } }

/* ---------- 09 contact ---------- */
.section--contact { border-top: 1px solid var(--line); }
.contact { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: start; }
.contact__paths { grid-column: span 7; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.contact__paths a { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); transition: padding-left .25s var(--ease); }
.contact__paths a:hover { padding-left: 8px; }
.contact__paths a:hover .contact__link { color: var(--alt-signal); }
.contact__link { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; transition: color .15s; white-space: nowrap; }
.contact__direct { grid-column: 8 / span 5; display: flex; flex-direction: column; gap: 10px; padding: 28px; border: 1px solid var(--line); border-top: 2px solid var(--alt-signal); border-radius: var(--radius); background: var(--bg-raised); }
.contact__email { font-family: var(--font-display); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.contact__email:hover { color: var(--alt-signal); }
@media (max-width: 1024px) { .contact__paths, .contact__direct { grid-column: span 12; } }
@media (max-width: 640px) { .contact__paths a { flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px 0; } .contact__link { font-size: 18px; white-space: normal; } }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--alt-obsidian-line); padding: 64px 0 40px; background: var(--alt-obsidian); color: var(--alt-bone); }
.footer__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 24px; align-items: start; margin-bottom: 48px; }
.footer__brand { grid-column: span 5; display: flex; flex-direction: column; gap: 20px; }
.footer__brand img { height: 72px; width: auto; align-self: flex-start; }
.footer__brand p { color: var(--alt-mist); max-width: 360px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer__col:nth-child(2) { grid-column: 7 / span 3; }
.footer__col:nth-child(3) { grid-column: span 3; }
.footer__col a:hover { color: var(--alt-signal); }
.footer__legal { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; border-top: 1px solid var(--alt-obsidian-line); padding-top: 20px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--alt-graphite); line-height: 1.5; }
@media (max-width: 1024px) { .footer { padding: 48px 0 24px; } .footer__brand, .footer__col:nth-child(2), .footer__col:nth-child(3) { grid-column: span 12; } .footer__brand img { height: 56px; } }

/* ---------- motion ---------- */
/* Load wipe: an Obsidian panel with a Signal leading edge, skewed to the slash's lean (32/122 ≈ 14.7°), sweeps off to the right. */
.wipe { position: fixed; inset: 0; z-index: 200; pointer-events: none; overflow: hidden; }
.wipe__panel { position: absolute; top: -20vh; bottom: -20vh; left: -40vw; width: 180vw; background: var(--alt-obsidian); border-right: 14px solid var(--alt-signal); transform: skewX(-14.7deg); animation: wipe-out 1s var(--ease) .25s forwards; }
@keyframes wipe-out { to { transform: skewX(-14.7deg) translateX(190vw); } }
.wipe.is-done { display: none; }
.no-js .wipe, .has-intro .wipe, .wipe--off { display: none; }
/* Hero content waits for the wipe (or, when the opening sequence runs, for its fade) */
.hero .reveal { transition-delay: .55s; }

/* Staggered headline reveal: JS splits headings into words; each rises out of a clipped box in sequence. */
.split .w-clip { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.split .w { display: inline-block; transform: translateY(110%); transition: transform .7s var(--ease); transition-delay: calc(var(--i) * 55ms); }
.split.is-in .w { transform: none; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .nav__slash, .chev { animation: none; }
  .wipe { display: none; }
  .split .w { transform: none; transition: none; }
  .path, .contact__paths a, .nav__menu a::after { transition: none; }
  .path:hover { transform: none; }
}