/* ==========================================================================
   Pelennor — site stylesheet
   Dark-first by design. Colour is information: blue = friendly, amber = unknown /
   pending, red-orange = critical. Everything else is steel and paper.
   ========================================================================== */

@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/MonaSans-latin.woff2") format("woff2");
  font-weight: 200 900;
  font-stretch: 75% 125%;
  font-display: swap;
}
@font-face {
  font-family: "Martian Mono";
  src: url("../fonts/MartianMono-latin.woff2") format("woff2");
  font-weight: 100 800;
  font-stretch: 75% 112.5%;
  font-display: swap;
}

@property --rs { syntax: "<length>"; inherits: true; initial-value: 10px; }

:root {
  /* steel */
  --void: #05070a;
  --bg: #07090c;
  --bg-1: #0a0d11;
  --bg-2: #0f1318;
  --bg-3: #151a21;
  --fg: #e8ecef;
  --fg-1: #c3cbd2;
  --fg-2: #939ea8;
  --fg-3: #65707a;
  --fg-4: #3f4851;
  --line: rgba(150, 175, 190, 0.14);
  --line-2: rgba(150, 175, 190, 0.26);
  --line-3: rgba(170, 195, 210, 0.45);
  --steel: 150 175 190;

  /* signal */
  --friend: #57a8ff;
  --unknown: #ffb000;
  --critical: #ff4e2e;

  /* paper */
  --paper: #eceef0;
  --paper-2: #e3e6e9;
  --ink: #0c0f13;
  --ink-1: #262c33;
  --ink-2: #48515a;
  --ink-3: #737c85;
  --ink-line: rgba(12, 15, 19, 0.13);
  --ink-line-2: rgba(12, 15, 19, 0.24);

  /* type */
  --sans: "Mona Sans", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* layout */
  --gutter: clamp(16px, 4vw, 56px);
  --maxw: 1440px;
  --header-h: 64px;

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--bg);
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 400;
  font-stretch: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01" 0;
  overflow-x: clip;
}
img, svg, canvas, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, h4, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }
strong { font-weight: 600; }
::selection { background: rgba(87, 168, 255, 0.32); color: #fff; }
:focus-visible { outline: 1px solid var(--friend); outline-offset: 4px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: fixed; left: 12px; top: 12px; z-index: 100; padding: 10px 14px;
  background: var(--fg); color: var(--bg); font-family: var(--mono); font-size: 12px;
  transform: translateY(-160%); transition: transform 0.3s var(--ease-out);
}
.skip:focus { transform: none; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ------------------------------------------------------------------ type */
.label {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.4;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-3);
  font-stretch: 100%;
}
.display {
  font-family: var(--sans);
  font-weight: 560;
  font-stretch: 118%;
  letter-spacing: -0.04em;
  line-height: 0.9;
}
.title {
  font-size: clamp(36px, 5.1vw, 82px);
  font-weight: 500;
  font-stretch: 112%;
  letter-spacing: -0.034em;
  line-height: 0.98;
  text-wrap: balance;
}
.lede {
  font-size: clamp(19px, 1.5vw, 23px);
  line-height: 1.45;
  color: var(--fg-1);
  letter-spacing: -0.006em;
  text-wrap: pretty;
  max-width: 34em;
}
.lede strong { color: var(--fg); font-weight: 560; }
.body { color: var(--fg-2); font-size: 16.5px; line-height: 1.6; max-width: 36em; text-wrap: pretty; }
.lede + .body { margin-top: 18px; }

/* ------------------------------------------------------------------ buttons */
.btn {
  --rs: 6px;
  position: relative;
  display: inline-flex; align-items: center; gap: 12px;
  height: 50px; padding: 0 22px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg);
  border: 1px solid var(--line-2);
  background: rgba(150, 175, 190, 0.03);
  white-space: nowrap;
  transition: background-color 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.btn:hover { border-color: var(--line-3); background: rgba(150, 175, 190, 0.08); }
.btn--primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn--primary:hover { background: #fff; border-color: #fff; color: var(--bg); }
.btn--small { height: 38px; padding: 0 16px; font-size: 10.5px; }
.btn__led { width: 6px; height: 6px; background: currentColor; opacity: 0.35; transition: background-color 0.3s, opacity 0.3s; }
.btn:hover .btn__led { background: var(--friend); opacity: 1; }
.btn__arrow { font-family: var(--sans); font-size: 15px; letter-spacing: 0; transition: transform 0.45s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* reticle corners (lock-on) */
.reticle {
  --rc: var(--line-3);
  --rs: 12px;
  background:
    linear-gradient(var(--rc), var(--rc)) left top / var(--rs) 1px no-repeat,
    linear-gradient(var(--rc), var(--rc)) left top / 1px var(--rs) no-repeat,
    linear-gradient(var(--rc), var(--rc)) right top / var(--rs) 1px no-repeat,
    linear-gradient(var(--rc), var(--rc)) right top / 1px var(--rs) no-repeat,
    linear-gradient(var(--rc), var(--rc)) left bottom / var(--rs) 1px no-repeat,
    linear-gradient(var(--rc), var(--rc)) left bottom / 1px var(--rs) no-repeat,
    linear-gradient(var(--rc), var(--rc)) right bottom / var(--rs) 1px no-repeat,
    linear-gradient(var(--rc), var(--rc)) right bottom / 1px var(--rs) no-repeat;
  transition: --rs 0.5s var(--ease-out);
}

/* ------------------------------------------------------------------ header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--header-h);
  transition: background-color 0.5s var(--ease-out), border-color 0.5s var(--ease-out), backdrop-filter 0.5s;
  border-bottom: 1px solid transparent;
}
.site-header.is-solid {
  background: rgba(7, 9, 12, 0.72);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
}
.site-header__inner {
  height: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px;
}
.site-header__logo { justify-self: start; display: inline-grid; padding: 6px 0; opacity: 0.94; transition: opacity 0.3s; }
.site-header__logo:hover { opacity: 1; }
.site-header__logo img { grid-area: 1 / 1; height: 26px; width: auto; transition: opacity 0.4s var(--ease-out); }
.site-header__logo .logo-on-paper { opacity: 0; }

/* header over paper sections */
.site-header.on-paper {
  background: rgba(236, 238, 240, 0.82);
  border-bottom-color: var(--ink-line);
}
.site-header.on-paper .logo-on-dark { opacity: 0; }
.site-header.on-paper .logo-on-paper { opacity: 1; }
.site-header.on-paper .site-nav a { color: var(--ink-2); }
.site-header.on-paper .site-nav a:hover, .site-header.on-paper .site-nav a[aria-current="true"] { color: var(--ink); }
.site-header.on-paper .btn { color: var(--ink); border-color: var(--ink-line-2); background: transparent; }
.site-header.on-paper .btn:hover { border-color: var(--ink); background: rgba(12, 15, 19, 0.04); }
.site-header.on-paper .menu-toggle__bars, .site-header.on-paper .menu-toggle__bars::before { background: var(--ink); }
.site-nav a, .site-header .btn { transition: color 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background-color 0.4s var(--ease-out); }
.site-nav ul { display: flex; gap: clamp(18px, 2.4vw, 40px); }
.site-nav a {
  position: relative;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--fg-2); padding: 8px 0; transition: color 0.3s;
}
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform 0.5s var(--ease-out);
}
.site-nav a:hover, .site-nav a[aria-current="true"] { color: var(--fg); }
.site-nav a:hover::after, .site-nav a[aria-current="true"]::after { transform: scaleX(1); }
.site-header__aside { justify-self: end; display: flex; align-items: center; gap: 22px; }
.menu-toggle { display: none; width: 40px; height: 40px; position: relative; }
.menu-toggle__bars, .menu-toggle__bars::before {
  position: absolute; left: 10px; right: 10px; height: 1px; background: var(--fg); transition: transform 0.4s var(--ease-out), top 0.4s var(--ease-out);
}
.menu-toggle__bars { top: 16px; }
.menu-toggle__bars::before { content: ""; left: 0; right: 0; top: 7px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars { top: 20px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { top: 0; transform: rotate(-90deg); }
.mobile-menu {
  position: fixed; inset: var(--header-h) 0 0 0; background: rgba(7, 9, 12, 0.97);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  padding: 32px var(--gutter);
}
.mobile-menu ol { display: grid; }
.mobile-menu a {
  display: flex; align-items: baseline; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line);
  font-size: 30px; font-stretch: 112%; letter-spacing: -0.03em; font-weight: 500;
}

/* ------------------------------------------------------------------ field / hero */
.field { position: relative; height: 470vh; background: var(--bg); }
.field__sticky {
  position: sticky; top: 0; height: 100vh; height: 100lvh; overflow: hidden;
  background:
    radial-gradient(60% 55% at 50% 44%, #1b232b 0%, rgba(13, 17, 22, 0.6) 45%, transparent 75%),
    var(--bg);
}
.field__gl, .field__fx { position: absolute; inset: 0; width: 100%; height: 100%; }
.field__gl { opacity: 0; transition: opacity 1.6s var(--ease-out); }
.field.is-live .field__gl { opacity: 1; }

.hero {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding-bottom: 10vh;
  pointer-events: none;
}
.hero__mark {
  width: clamp(200px, 36vh, 410px);
  aspect-ratio: 650 / 703;
  will-change: transform, opacity;
}
.hero__mark img {
  width: 100%; height: 100%;
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.5)) drop-shadow(0 0 28px rgba(200, 220, 235, 0.22)) drop-shadow(0 0 90px rgba(200, 220, 235, 0.12));
}
.hero__horizon {
  width: 100%; height: 1px; margin-top: -2px;
  background: linear-gradient(90deg, transparent 0%, rgba(150, 175, 190, 0.18) 18%, rgba(200, 216, 226, 0.62) 50%, rgba(150, 175, 190, 0.18) 82%, transparent 100%);
  transform-origin: center;
  will-change: transform, opacity;
}
.hero__titles { margin-top: clamp(26px, 5vh, 52px); text-align: center; will-change: transform, opacity; }
.hero__title { font-size: clamp(46px, 7.4vw, 124px); }
.hero__kicker { margin-top: 18px; color: var(--fg-2); letter-spacing: 0.2em; }

.hero__foot {
  position: absolute; left: 0; right: 0; bottom: 0;
  max-width: var(--maxw); margin-inline: auto; padding: 0 var(--gutter) clamp(22px, 4vh, 40px);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 24px;
  will-change: opacity, transform;
}
.hero__lede { max-width: 25em; font-size: 14.5px; line-height: 1.55; color: var(--fg-2); }
.hero__lede strong { color: var(--fg); font-weight: 500; letter-spacing: 0.02em; }
.hero__foot .btn { justify-self: end; }
.hero__scroll { display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--fg-3); }
.hero__scroll-line { width: 1px; height: 44px; background: linear-gradient(var(--line-3), transparent); position: relative; overflow: hidden; }
.hero__scroll-line::after {
  content: ""; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: var(--fg);
  animation: scrollcue 2.4s var(--ease-io) infinite;
}
@keyframes scrollcue { 0% { top: -40%; } 60%, 100% { top: 110%; } }

/* intro: elements rise once fonts are in */
html.js .hero__mark, html.js .hero__horizon, html.js .hero__titles, html.js .hero__foot { opacity: 0; }
html.js.is-ready .hero__mark { animation: rise 2.2s var(--ease-out) 0.15s both; }
html.js.is-ready .hero__horizon { animation: horizon 2.4s var(--ease-out) 0.35s both; }
html.js.is-ready .hero__titles { animation: rise 1.8s var(--ease-out) 0.8s both; }
html.js.is-ready .hero__foot { animation: fade 1.6s var(--ease-out) 1.3s both; }
html.js.is-sequenced .hero__mark, html.js.is-sequenced .hero__horizon,
html.js.is-sequenced .hero__titles, html.js.is-sequenced .hero__foot { animation: none; }
@keyframes rise { from { opacity: 0; transform: translate3d(0, 14px, 0); } to { opacity: 1; transform: none; } }
@keyframes horizon { from { opacity: 0; transform: scaleX(0.2); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* beats */
.beats { position: absolute; inset: 0; pointer-events: none; }
.beat {
  position: absolute; left: var(--gutter); top: 50%;
  width: min(30rem, 34vw);
  opacity: 0; visibility: hidden;
  will-change: transform, opacity;
}
.beat__idx { display: flex; gap: 12px; color: var(--fg-2); margin-bottom: 22px; }
.beat__idx span { color: var(--friend); }
.beat__title {
  font-size: clamp(30px, 3.3vw, 52px); font-weight: 520; font-stretch: 110%;
  letter-spacing: -0.032em; line-height: 1; text-wrap: balance;
}
.beat__body { margin-top: 20px; color: var(--fg-2); font-size: 16.5px; line-height: 1.6; max-width: 25em; text-wrap: pretty; }

/* track card */
.track-card {
  position: absolute; left: 0; top: 0; width: 300px;
  padding: 14px 16px 12px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.04em; color: var(--fg-1);
  background: rgba(8, 11, 15, 0.74);
  border: 1px solid rgba(255, 176, 0, 0.4);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  opacity: 0; visibility: hidden;
  will-change: transform, opacity;
}
.track-card::before {
  content: ""; position: absolute; left: -1px; top: -1px; width: 3px; height: calc(100% + 2px); background: var(--unknown);
}
.track-card__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.track-card__id { color: var(--unknown); font-size: 12px; letter-spacing: 0.1em; }
.track-card__state {
  padding: 3px 7px; font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase;
  border: 1px dashed rgba(255, 176, 0, 0.55); color: var(--unknown);
  transition: background-color 0.4s, color 0.4s, border-color 0.4s;
}
.track-card.is-confirmed .track-card__state { background: var(--unknown); color: #120d00; border-style: solid; border-color: var(--unknown); }
.track-card__class { color: var(--fg-2); margin-bottom: 10px; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.track-card__by {
  overflow: hidden; margin-top: -6px;
  color: var(--fg-1); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase; line-height: 1.6;
  max-height: 0; opacity: 0; transition: max-height 0.5s var(--ease-out), opacity 0.4s, margin 0.5s var(--ease-out);
}
.track-card__by span { display: block; }
.track-card__shared { color: var(--friend); opacity: 0; transition: opacity 0.4s; }
.track-card.is-confirmed .track-card__by { max-height: 1.7em; opacity: 1; margin: -4px 0 10px; }
.track-card.is-shared .track-card__by { max-height: 3.4em; }
.track-card.is-shared .track-card__shared { opacity: 1; }
.track-card__rows { display: grid; gap: 4px; padding: 10px 0; border-block: 1px solid var(--line); }
.track-card__rows div { display: grid; grid-template-columns: 46px 1fr; }
.track-card__rows dt { color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.12em; font-size: 9.5px; padding-top: 1px; }
.track-card__rows dd span { color: var(--fg-3); }
.track-card__rows dd i { font-style: normal; white-space: nowrap; }
.track-card__actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 10px; }
.track-card__actions span {
  text-align: center; padding: 5px 0; font-size: 8.5px; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid var(--line-2); color: var(--fg-2);
  transition: background-color 0.4s, color 0.4s, border-color 0.4s;
}
.track-card.is-confirmed [data-act="confirm"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.track-card.is-shared [data-act="share"] { background: var(--friend); color: #021327; border-color: var(--friend); }

/* field HUD */
.field__hud {
  position: absolute; left: 0; right: 0; bottom: 0;
  max-width: var(--maxw); margin-inline: auto; padding: 0 var(--gutter) clamp(20px, 3.5vh, 34px);
  display: flex; justify-content: space-between; align-items: end;
  opacity: 0; pointer-events: none;
}
.phase { display: flex; gap: 6px; }
.phase li { width: 54px; }
.phase li span { display: block; font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.14em; color: var(--fg-4); padding-bottom: 8px; transition: color 0.4s; }
.phase li::after { content: ""; display: block; height: 1px; background: var(--line-2); transform-origin: left; }
.phase li.is-on span { color: var(--fg); }
.phase li.is-on::after { background: var(--fg-1); }

/* static / reduced motion / no JS: the sequence becomes a composed page */
html:not(.js) .field, .field.is-static { height: auto; }
html:not(.js) .field__sticky, .field.is-static .field__sticky { position: relative; height: auto; min-height: 100vh; overflow: visible; }
html:not(.js) .hero, .field.is-static .hero { position: relative; min-height: 100vh; }
html:not(.js) .hero__foot, .field.is-static .hero__foot { position: relative; padding-top: 24px; }
.field.is-static .hero { min-height: calc(100vh - 140px); }
.field.is-static .hero__scroll { visibility: hidden; }
html:not(.js) .beats, .field.is-static .beats {
  position: relative; inset: auto; max-width: var(--maxw); margin-inline: auto; padding: 12vh var(--gutter);
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 72px 56px;
}
html:not(.js) .beat, .field.is-static .beat { position: relative; left: auto; top: auto; width: auto; opacity: 1; visibility: visible; transform: none !important; }
html:not(.js) .track-card, html:not(.js) .field__hud, html:not(.js) .field__fx { display: none; }
.field.is-static .field__fx, .field.is-static .track-card, .field.is-static .field__hud { display: none; }
.field.is-static .field__gl { height: 100vh; bottom: auto; }

/* ------------------------------------------------------------------ sections */
.section { position: relative; padding-block: clamp(96px, 13vw, 196px); }
.sec-head {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--fg-3);
}
.sec-head__idx { color: var(--fg); }
.sec-head__name { color: var(--fg-1); }
.sec-head__mark { width: 20px; height: 20px; flex: none; }
.sec-head__rule { flex: 1; height: 1px; background: var(--line); }
.split {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(28px, 5vw, 96px); align-items: end;
  margin-top: clamp(40px, 6vw, 88px); margin-bottom: clamp(56px, 7vw, 112px);
}

/* paper sections: re-map tokens so every component adapts */
.paper {
  --fg: var(--ink); --fg-1: var(--ink-1); --fg-2: var(--ink-2); --fg-3: var(--ink-3); --fg-4: #9aa2a9;
  --line: var(--ink-line); --line-2: var(--ink-line-2); --line-3: rgba(12, 15, 19, 0.4);
  background: var(--paper); color: var(--ink);
}
.paper ::selection { background: rgba(87, 168, 255, 0.3); color: var(--ink); }
.paper + .paper { padding-top: 0; }

/* ------------------------------------------------------------------ 04 see */
.see { background: var(--bg); }
.visor { position: relative; }
.visor__grid {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 2.4fr) minmax(0, 1fr); grid-template-rows: 1fr 1fr; gap: 10px;
}
.visor__panel { position: relative; overflow: hidden; background: #04060a; min-height: 0; }
.visor__panel--main { grid-row: 1 / span 2; aspect-ratio: 16 / 9; }
.visor__panel canvas, .visor__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.visor__panel::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 0 1px var(--line), inset 0 0 90px rgba(0, 0, 0, 0.5);
}
.visor__links { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 2; }

.chapters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(16px, 2vw, 32px); margin-top: 36px; }
.chapter {
  position: relative; text-align: left; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px;
  align-items: baseline; padding: 22px 0 6px; color: var(--fg-3);
  transition: color 0.4s;
}
.chapter strong {
  font-size: 22px; font-weight: 520; font-stretch: 110%; letter-spacing: -0.02em; color: var(--fg-2);
  transition: color 0.4s;
}
.chapter__text { grid-column: 1 / -1; font-size: 14.5px; line-height: 1.5; max-width: 22em; transition: color 0.4s; }
.chapter__bar { position: absolute; left: 0; right: 0; top: 0; height: 1px; background: var(--line-2); overflow: hidden; }
.chapter__bar span { position: absolute; inset: 0; background: var(--fg); transform: scaleX(0); transform-origin: left; }
.chapter[aria-selected="true"] strong { color: var(--fg); }
.chapter[aria-selected="true"] .chapter__text { color: var(--fg-1); }
.chapter[aria-selected="true"] .label { color: var(--friend); }
.chapter[aria-selected="true"] .chapter__bar span { animation: chapterbar var(--chapter-ms, 7000ms) linear forwards; }
.chapters.is-paused .chapter[aria-selected="true"] .chapter__bar span,
.chapters.is-hold .chapter[aria-selected="true"] .chapter__bar span { animation-play-state: paused; }
.chapter:hover strong { color: var(--fg); }
@keyframes chapterbar { to { transform: scaleX(1); } }
.chapters.is-footage .chapter__bar span, .chapters.is-driven .chapter__bar span { animation: none !important; transform: scaleX(var(--prog, 0)); }
.chapters.is-footage.is-static .chapter { cursor: default; }
@media (prefers-reduced-motion: reduce) {
  .chapter[aria-selected="true"] .chapter__bar span { animation: none; transform: scaleX(1); }
}

/* ------------------------------------------------------------------ 05 true sight */
.pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(20px, 2.6vw, 44px); }
.pillar { border-top: 1px solid var(--line-2); padding-top: 26px; }
.pillar__icon { width: 44px; height: 44px; fill: none; stroke: var(--fg); stroke-width: 1.15; margin-bottom: 34px; }
.pillar .label { margin-bottom: 10px; }
.pillar h3 { font-size: clamp(24px, 2.1vw, 32px); font-weight: 520; font-stretch: 112%; letter-spacing: -0.03em; margin-bottom: 14px; }
.pillar p:last-child { color: var(--fg-2); font-size: 15.5px; line-height: 1.6; text-wrap: pretty; }

.drawing { margin-top: clamp(80px, 10vw, 160px); }
.drawing__sheet {
  position: relative;
  border: 1px solid var(--line-2);
  background-color: #f1f3f4;
  background-image:
    linear-gradient(rgba(12, 15, 19, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 15, 19, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -1px -1px;
  padding: clamp(18px, 4vw, 64px) clamp(14px, 5vw, 88px);
}
.drawing__plate { position: relative; }
.drawing__plate img { width: 100%; height: auto; mix-blend-mode: multiply; }
.drawing__leaders { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.drawing__leaders line { stroke: var(--ink); stroke-width: 1; vector-effect: non-scaling-stroke; }
.balloon, .tick { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); }
.balloon {
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  background: #f1f3f4; border: 1px solid var(--ink);
  font-family: var(--mono); font-size: 10.5px; color: var(--ink);
}
.tick { width: 5px; height: 5px; border-radius: 50%; background: var(--ink); }
.titleblock {
  display: grid; grid-template-columns: 1fr;
  border: 1px solid var(--line-2); border-top: 0;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--ink-1);
}
.titleblock > div { padding: 12px 14px; border-left: 1px solid var(--line-2); display: grid; gap: 4px; align-content: start; }
.titleblock > div:first-child { border-left: 0; }
.titleblock .label { font-size: 9px; color: var(--ink-3); }
.legend { display: flex; flex-wrap: wrap; gap: 8px 36px; margin-top: 6px; }
.legend li { display: grid; grid-template-columns: 24px auto; align-items: baseline; text-transform: none; letter-spacing: 0.02em; line-height: 1.45; }
.legend b {
  width: 18px; height: 18px; border-radius: 50%; border: 1px solid var(--ink); display: inline-grid; place-items: center;
  font-weight: 400; font-size: 9px;
}

/* ------------------------------------------------------------------ 05 field kit, 3D */
.kit { margin-top: clamp(80px, 10vw, 160px); }
.kit__stage, .kit__sticky { position: relative; }
.kit__canvas, .kit__leaders, .kit__tags, .kit__balloons, .kit__card, .kit__hint { display: none; }
.kit-3d .kit .kit__stage { height: 380vh; }
.kit-3d .kit .kit__sticky { position: sticky; top: calc(var(--header-h) + 14px); }
.kit-3d .kit .kit__sheet { position: relative; height: calc(100vh - var(--header-h) - 132px); min-height: 440px; padding: 0; overflow: hidden; }
.kit-3d .kit .drawing__plate { display: none; }
.kit-3d .kit .kit__canvas { display: block; position: absolute; inset: 0; width: 100%; height: 100%; touch-action: pan-y; cursor: grab; transition: opacity 0.8s; }
.kit.is-loading .kit__canvas { opacity: 0; }
.kit.is-dragging .kit__canvas { cursor: grabbing; }
.kit-3d .kit .kit__leaders { display: block; position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.kit__leaders line { stroke: var(--ink); stroke-width: 1; transition: stroke 0.3s; }
.kit__leaders line.is-on { stroke-width: 1.4; }
.kit__leaders circle { fill: var(--ink); }
.kit-3d .kit .kit__balloons, .kit-3d .kit .kit__tags { display: block; position: absolute; inset: 0; pointer-events: none; }
.kit__balloon {
  position: absolute; left: 0; top: 0; width: 28px; height: 28px; margin: -14px 0 0 -14px;
  border-radius: 50%; display: grid; place-items: center; pointer-events: auto;
  background: #f1f3f4; border: 1px solid var(--ink); color: var(--ink);
  font-family: var(--mono); font-size: 10.5px; transition: background-color 0.3s, color 0.3s, box-shadow 0.3s;
}
.kit__balloon:hover, .kit__balloon.is-on { background: var(--ink); color: #f1f3f4; box-shadow: 0 0 0 4px rgba(12, 15, 19, 0.08); }
.kit__tag {
  position: absolute; left: 0; top: 0; white-space: nowrap;
  padding: 3px 7px; font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em;
  color: #c01982; background: rgba(241, 243, 244, 0.92); border: 1px solid rgba(192, 25, 130, 0.55);
}
.kit-3d .kit .kit__card {
  display: block; position: absolute; left: 20px; bottom: 20px; width: min(360px, calc(100% - 40px));
  padding: 16px 18px 15px; background: rgba(241, 243, 244, 0.88); border: 1px solid var(--line-2);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.kit__card h3 { margin: 8px 0 6px; font-size: 21px; font-weight: 540; font-stretch: 110%; letter-spacing: -0.02em; }
.kit__card-text { color: var(--fg-2); font-size: 14px; line-height: 1.5; }
.kit__card.is-in > * { animation: kitcard 0.6s var(--ease-out) both; }
.kit__card.is-in > :nth-child(2) { animation-delay: 0.05s; }
.kit__card.is-in > :nth-child(3) { animation-delay: 0.1s; }
@keyframes kitcard { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.kit__meters { margin-top: 12px; display: grid; gap: 8px; }
.kit__meters[hidden] { display: none; }
.kit__meter { display: grid; grid-template-columns: 96px 1fr auto; gap: 10px; align-items: center; }
.kit__meter .label { color: var(--fg-2); font-size: 9.5px; }
.kit__bat { position: relative; height: 10px; border: 1px solid #c01982; padding: 1px; }
.kit__bat::after { content: ""; position: absolute; right: -4px; top: 2px; width: 2px; height: 4px; background: #c01982; }
.kit__bat i { display: block; height: 100%; width: calc(var(--lvl, 0.84) * 100%); background: repeating-linear-gradient(90deg, #c01982 0 6px, transparent 6px 8px); }
.kit__cpu { display: flex; gap: 3px; height: 14px; align-items: flex-end; }
.kit__cpu i { flex: 1; height: 100%; background: #c01982; transform-origin: bottom; transform: scaleY(0.4); }
.kit-3d .kit .kit__hint { display: block; position: absolute; right: 18px; top: 16px; color: var(--fg-3); transition: opacity 0.6s; }
.kit.has-interacted .kit__hint { opacity: 0; }
.kit__legend .legend li { display: block; }
.kit__legend button { display: grid; grid-template-columns: 24px auto; align-items: baseline; text-align: left; color: inherit; font: inherit; letter-spacing: inherit; padding: 2px 0; transition: color 0.3s; }
.kit__legend button b { transition: background-color 0.3s, color 0.3s; }
.kit__legend button:hover b, .kit__legend button.is-on b { background: var(--ink); color: #f1f3f4; }
html:not(.kit-3d) .kit__legend button { cursor: default; }
@media (max-width: 860px) {
  .kit-3d .kit .kit__stage { height: 320vh; }
  .kit-3d .kit .kit__sheet { height: calc(100svh - var(--header-h) - 190px); min-height: 380px; }
  .kit-3d .kit .kit__card { left: 10px; right: 10px; bottom: 10px; width: auto; padding: 12px 13px; }
  .kit__card h3 { font-size: 17px; }
  .kit__card-text { font-size: 13px; }
}
/* reduced motion: a still exploded view instead of the pinned scroll stage */
@media (prefers-reduced-motion: reduce) {
  .kit-3d .kit .kit__stage { height: auto; }
  .kit-3d .kit .kit__sticky { position: relative; top: auto; }
}

/* ------------------------------------------------------------------ 06 pilots */
.pilots { background: var(--bg); }
.pilots__cta { margin-top: clamp(28px, 3vw, 44px); }

/* ------------------------------------------------------------------ 07 company */
.team { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(28px, 3vw, 48px) clamp(20px, 2.6vw, 40px); }
.person__portrait {
  position: relative; aspect-ratio: 4 / 5; margin-bottom: 22px; overflow: hidden;
  border-top: 1px solid var(--line-2);
}
.person__portrait img {
  display: block; width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.001); transition: transform 1.2s var(--ease-out);
}
.person:hover .person__portrait img { transform: scale(1.035); }
.person .label { margin-bottom: 8px; }
.person h3 { font-size: clamp(21px, 1.7vw, 26px); font-weight: 540; font-stretch: 110%; letter-spacing: -0.025em; }
.person__links { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 12px; }
.person__link {
  padding-bottom: 2px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--fg-2); border-bottom: 1px solid var(--line-2); transition: color 0.25s, border-color 0.25s;
}
.person__link:hover { color: var(--fg); border-color: var(--fg); }

.recognition {
  margin-top: clamp(72px, 9vw, 140px);
  display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: clamp(28px, 4vw, 72px);
}
.recognition h3 { margin-bottom: 18px; }
.recognition ul { border-top: 1px solid var(--line-2); }
.recognition li {
  display: flex; justify-content: space-between; align-items: baseline; gap: 18px; flex-wrap: wrap;
  padding: 16px 0; border-bottom: 1px solid var(--line);
}
.recognition strong { font-weight: 540; font-stretch: 106%; letter-spacing: -0.01em; font-size: 16.5px; }
.recognition li span { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2); }

/* ------------------------------------------------------------------ 08 contact */
.briefing { background: var(--bg); }
.briefing__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 7vw, 128px);
  margin-top: clamp(40px, 6vw, 88px);
}
.briefing__intro .title { margin-bottom: 28px; }
.briefing__contact { margin-top: 44px; display: grid; gap: 0; border-top: 1px solid var(--line-2); max-width: 26em; }
.briefing__contact div { display: grid; grid-template-columns: 110px 1fr; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.briefing__contact a { border-bottom: 1px solid var(--line-2); transition: border-color 0.3s; }
.briefing__contact a:hover { border-color: var(--fg); }

.brief-form { display: grid; gap: 30px; align-content: start; }
.brief-form__interest { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.brief-form__interest legend { margin-bottom: 14px; padding: 0; }
.brief-form__interest label { position: relative; cursor: pointer; }
.brief-form__interest input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.brief-form__interest span {
  display: inline-flex; align-items: center; height: 38px; padding: 0 16px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase;
  border: 1px solid var(--line-2); color: var(--fg-2);
  transition: border-color 0.3s, color 0.3s, background-color 0.3s;
}
.brief-form__interest label:hover span { color: var(--fg); border-color: var(--line-3); }
.brief-form__interest input:checked + span { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.brief-form__interest input:focus-visible + span { outline: 1px solid var(--friend); outline-offset: 3px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 28px; }
.input { display: grid; gap: 10px; }
.input input, .input textarea {
  width: 100%; padding: 6px 0 12px; border: 0; border-bottom: 1px solid var(--line-2);
  background: transparent; font-size: 17px; outline: none; border-radius: 0;
  transition: border-color 0.3s;
}
.input textarea { resize: vertical; min-height: 96px; line-height: 1.5; }
.input input::placeholder, .input textarea::placeholder { color: var(--fg-4); }
.input input:focus, .input textarea:focus { border-bottom-color: var(--fg); }
.input:focus-within .label { color: var(--fg-1); }
.input.is-invalid input { border-bottom-color: var(--critical); }
.brief-form__foot { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; padding-top: 6px; }
.brief-form__note { color: var(--fg-3); font-size: 13.5px; max-width: 26em; line-height: 1.5; }
.brief-form__status { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--fg-2); min-height: 1em; }
.brief-form__status.is-error { color: var(--critical); }

/* ------------------------------------------------------------------ footer */
.site-footer { background: var(--void); border-top: 1px solid var(--line); padding-top: clamp(64px, 8vw, 120px); overflow: hidden; }
.site-footer__top { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 3fr) minmax(0, 3fr); gap: 32px; }
.site-footer__brand { display: flex; align-items: center; gap: clamp(16px, 1.6vw, 24px); }
.site-footer__tree { flex: none; width: auto; height: clamp(52px, 4.6vw, 68px); opacity: 0.92; }
.site-footer__tag { font-size: clamp(22px, 2vw, 30px); font-weight: 480; font-stretch: 110%; letter-spacing: -0.025em; line-height: 1.15; max-width: 14em; }
.site-footer nav ul { display: grid; gap: 10px; }
.site-footer nav a, .site-footer__meta {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2);
}
.site-footer nav a:hover, .site-footer__meta a:hover { color: var(--fg); }
.site-footer__meta { display: grid; gap: 10px; align-content: start; }
.site-footer__mark { margin-top: clamp(64px, 8vw, 120px); opacity: 0.07; }
.site-footer__mark img { width: 100%; height: auto; }
.site-footer__bottom {
  display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: baseline;
  padding: 22px 0 28px; margin-top: clamp(-36px, -2vw, -12px); border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--fg-3);
}
.site-footer__sign { color: var(--fg-4); }
.site-footer__legal { margin-left: 14px; font-size: 11px; color: var(--fg-4); }
.site-footer__legal:hover { color: var(--fg-2); }

/* ------------------------------------------------------------------ reveal */
html.js [data-reveal] {
  opacity: 0; transform: translate3d(0, 22px, 0);
  transition: opacity 1s var(--ease-out), transform 1.2s var(--ease-out);
  transition-delay: var(--d, 0s);
}
html.js [data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js [data-reveal] { opacity: 1; transform: none; transition: none; }
  html.js .hero__mark, html.js .hero__horizon, html.js .hero__titles, html.js .hero__foot { opacity: 1; animation: none !important; }
  .hero__scroll-line::after { animation: none; }
}

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1100px) {
  .site-nav { display: none; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .menu-toggle { display: block; }
  .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px 32px; }
  .team { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chapters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .split, .briefing__grid, .recognition { grid-template-columns: 1fr; }
  .split { align-items: start; }
    .site-header__aside .btn { display: none; }
  .hero__foot { grid-template-columns: 1fr; gap: 20px; }
  .hero__foot .btn { justify-self: start; }
  .hero__scroll { display: none; }
  .beat { left: var(--gutter); right: var(--gutter); width: auto; top: auto; bottom: 88px; }
  .beat__title { font-size: clamp(28px, 7.6vw, 40px); }
  .beat__body { font-size: 15px; }
  .beats::before {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 56%;
    background: linear-gradient(to top, rgba(7, 9, 12, 0.95) 0%, rgba(7, 9, 12, 0.88) 48%, rgba(7, 9, 12, 0) 100%);
    opacity: var(--scrim, 0);
  }
  .track-card { width: 206px; font-size: 9.5px; padding: 10px 11px 9px; }
  .track-card__class { display: none; }
  .track-card__rows { grid-template-columns: 1fr 1fr; padding: 7px 0; }
  .track-card__rows div:nth-child(-n + 3) { display: none; }
  .track-card__rows div { grid-template-columns: auto 1fr; gap: 8px; }
  .track-card__actions span { font-size: 7.5px; padding: 4px 0; letter-spacing: 0.08em; }
  .track-card__by { font-size: 8.5px; }
  .site-footer__top { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
  .site-footer__bottom { gap: 12px; }
    html:not(.js) .beats, .field.is-static .beats { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .pillars, .chapters, .field-row { grid-template-columns: 1fr; }
  .team { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 16px; }
  .person .label { font-size: 9px; letter-spacing: 0.1em; }
  .person h3 { font-size: 18px; }
  .chapter { padding-top: 16px; }
  .chapter__text { display: none; }
  .chapter[aria-selected="true"] .chapter__text { display: block; }
  .chapters { gap: 0; }
  .drawing__sheet { padding: 14px 10px; }
  .balloon { width: 20px; height: 20px; font-size: 9px; }
}
@media (max-width: 860px) {
  .visor__grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; gap: 8px; }
  .visor__panel--main { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 4 / 5; }
  .visor__panel--main.has-footage { aspect-ratio: 16 / 9; }
  .visor__panel--side { aspect-ratio: 1 / 1; }
}