/* ============================================================
   LATENT MEDIA - main.css
   A connected studio. One signal, every channel.
   Light, warm, editorial. Signal vermilion + warm ink on bone.
   ============================================================ */

/* ---------- 1. RESET / BASE ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  font-synthesis: none;
  font-kerning: normal;
}

img, svg, video, canvas { display: block; max-width: 100%; }
img, video { height: auto; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: var(--signal); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* SKIP LINK: the offscreen "Skip to content" link must come on-screen when focused
   so keyboard users can actually use it. Overrides the inline left:-9999px. */
a[href="#main"]:focus {
  left: clamp(0.75rem, 2vw, 1.25rem) !important;
  top: 0.75rem !important;
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* ---------- 2. TOKENS ---------- */
:root {
  /* surfaces */
  --paper:       #F2EDE3;   /* warm bone, main bg */
  --paper-2:     #FBF8F1;   /* lighter card surface */
  --paper-3:     #EAE3D5;   /* recessed / alt band */
  --ink:         #161310;   /* warm near-black text */
  --ink-2:       #565047;   /* muted secondary text */
  --ink-3:       #8B8475;   /* faint / captions */
  --line:        #DED6C6;   /* warm hairline border */
  --line-strong: #C9BFAC;

  /* the one dark contrast surface (used sparingly) */
  --night:       #14120E;
  --night-2:     #221F18;

  /* accents */
  --signal:      #64748B;   /* vermilion - primary signal */
  --signal-deep: #475569;
  --signal-soft: #E2E8F0;
  --moss:        #2F6B57;   /* secondary category (graph / data only) */
  --moss-soft:   #DCE8E1;

  /* type - brand fonts: Space Grotesk (display + labels) + Inter (body) */
  --display: "Space Grotesk", system-ui, sans-serif;
  --sans:    "Inter", system-ui, -apple-system, sans-serif;
  --mono:    "Space Grotesk", ui-monospace, monospace;

  /* shadows: warm, layered light. Each step adds a soft ambient bed + a tighter
     contact shadow so cards read as objects sitting on warm paper, never flat, never blue.
     The brown tint (40,30,16 / 30,22,10) keeps the light feeling lamp-warm, not cold grey. */
  --sh-1: 0 1px 2px rgba(40, 30, 16, 0.05), 0 1px 1px rgba(40, 30, 16, 0.04);
  --sh-2: 0 4px 10px -4px rgba(40, 30, 16, 0.10), 0 1px 2px rgba(40, 30, 16, 0.06);
  --sh-3:
    0 22px 46px -20px rgba(40, 30, 16, 0.30),
    0 8px 18px -10px rgba(40, 30, 16, 0.14),
    0 1px 2px rgba(40, 30, 16, 0.06);
  --sh-pop:
    0 48px 96px -32px rgba(30, 22, 10, 0.46),
    0 18px 40px -24px rgba(30, 22, 10, 0.30);

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* layout */
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --maxw: 1320px;
  --nav-h: 78px;
}

/* ---------- 3. TYPOGRAPHY ---------- */
h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-optical-sizing: auto;
}

.display {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  font-size: clamp(2.9rem, 8.5vw, 7.2rem);
}

.h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1.0; letter-spacing: -0.022em; }
.h2 { font-size: clamp(1.9rem, 4.4vw, 3.3rem); line-height: 1.03; letter-spacing: -0.02em; }
.h3 { font-size: clamp(1.4rem, 2.6vw, 2.05rem); line-height: 1.08; letter-spacing: -0.015em; }
.h4 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); line-height: 1.15; }

.serif-italic { font-style: italic; font-family: var(--display); }

em, .em { font-family: var(--display); font-style: italic; }

.lead {
  font-size: clamp(1.15rem, 1.9vw, 1.5rem);
  line-height: 1.46;
  color: var(--ink-2);
  letter-spacing: -0.011em;
  font-weight: 500;
  max-width: 44ch;
  text-wrap: pretty;
}

.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 400;
}

.mono-signal { color: var(--signal); }

p { max-width: 60ch; }
.measure-tight { max-width: 44ch; }
/* let display headings break tidily rather than orphaning a word */
.h1, .h2, .display { text-wrap: balance; }

/* fluid numeral for big stats */
.numeral {
  font-family: var(--display);
  font-weight: 420;
  letter-spacing: -0.04em;
  line-height: 0.85;
  font-size: clamp(3rem, 7vw, 5.6rem);
  font-variant-numeric: tabular-nums;
}

/* ---------- 4. LAYOUT ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap-wide { max-width: 1560px; }
.wrap-narrow { max-width: 880px; }

.section { padding-block: clamp(4.5rem, 9vw, 9rem); position: relative; }
.section-tight { padding-block: clamp(3rem, 5vw, 5rem); }

.band-alt { background: var(--paper-3); }
.band-paper2 { background: var(--paper-2); }

.grid { display: grid; gap: clamp(1rem, 2.4vw, 2rem); }
.cols-12 { grid-template-columns: repeat(12, 1fr); }

.divider { height: 1px; background: var(--line); border: 0; }

.section-no {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.section-no b { color: var(--signal); font-weight: 400; }

/* ---------- 5. BUTTONS / LINKS ---------- */
.btn {
  --bg: var(--ink);
  --fg: var(--paper);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 1.5rem 0.9rem;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.94rem;
  letter-spacing: -0.01em;
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.5s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
  will-change: transform;
}
.btn span { position: relative; z-index: 2; display: inline-flex; align-items: center; gap: 0.6rem; }
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--signal);
  transform: translateY(101%);
  transition: transform 0.45s var(--ease);
  z-index: 1;
}
.btn:hover::before { transform: translateY(0); }
.btn:hover { color: #fff; }
.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover .arrow { transform: translate(4px, -4px); }

.btn-signal { --bg: var(--signal); --fg: #fff; }
.btn-signal::before { background: var(--ink); }
.btn-signal:hover { color: var(--paper); }

.btn-ghost {
  --bg: transparent; --fg: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
}
.btn-ghost::before { background: var(--ink); }
.btn-ghost:hover { color: var(--paper); border-color: var(--ink); }

.btn-lg { padding: 1.1rem 1.9rem; font-size: 1rem; }

/* draw-underline text link */
.link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  padding-bottom: 2px;
  color: var(--ink);
}
.link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.link:hover::after { transform: scaleX(1); }
.link .arrow { transition: transform 0.35s var(--ease); }
.link:hover .arrow { transform: translateX(4px); }

/* ---------- 6. NAV ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 200;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav-inner {
  width: 100%; max-width: var(--maxw);
  margin-inline: auto; padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--display); font-weight: 500; font-size: 1.25rem; letter-spacing: -0.02em; }
.brand .mark { width: 26px; height: 26px; flex: none; }
.brand-sub { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.2em; color: var(--ink-3); }
.brand-logo { height: clamp(34px, 4.6vw, 44px); width: auto; display: block; }

.nav-links { display: flex; align-items: center; gap: 0.35rem; }
.nav-links a {
  position: relative;
  padding: 0.5rem 0.9rem;
  font-weight: 550;
  font-size: 0.95rem;
  color: var(--ink-2);
  border-radius: 2px;
  transition: color 0.25s var(--ease);
}
.nav-links a::before {
  content: "";
  position: absolute; left: 0.9rem; right: 0.9rem; bottom: 0.35rem;
  height: 1.5px; background: var(--signal);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::before,
.nav-links a[aria-current="page"]::before { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--ink); }

.nav-cta { display: flex; align-items: center; gap: 1rem; }

.nav-toggle { display: none; width: 44px; height: 44px; position: relative; }
.nav-toggle span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--ink); transition: transform 0.35s var(--ease), opacity 0.2s; }
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
body.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* mobile overlay menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 190;
  background: var(--paper);
  display: flex; flex-direction: column;
  padding: calc(var(--nav-h) + 2rem) var(--gutter) 2rem;
  transform: translateY(-100%);
  transition: transform 0.6s var(--ease);
  pointer-events: none;
}
body.menu-open .mobile-menu { transform: translateY(0); pointer-events: auto; }
.mobile-menu a.m-link {
  font-family: var(--display);
  font-size: clamp(2rem, 9vw, 3.4rem);
  font-weight: 440;
  letter-spacing: -0.02em;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
  display: flex; align-items: baseline; justify-content: space-between;
  color: var(--ink);
}
.mobile-menu a.m-link .mono { font-size: 0.7rem; }
.mobile-menu .m-foot { margin-top: auto; display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; align-items: center; padding-top: 2rem; }

/* ---------- 7. HERO ---------- */
.hero { position: relative; padding-top: calc(var(--nav-h) + clamp(1.5rem, 4vw, 3.5rem)); padding-bottom: clamp(3rem, 6vw, 6rem); overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero .wrap { position: relative; z-index: 2; }

/* ---------- 8. CARDS ---------- */
.card {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: clamp(1.4rem, 2.2vw, 2rem);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.4s var(--ease);
}
.card { box-shadow: var(--sh-1); }
.card:hover { box-shadow: var(--sh-3); border-color: var(--line-strong); transform: translateY(-3px); }
.card-soft { border-radius: 18px; }
.card-sharp { border-radius: 0; }

/* service node card (used in coupled picker) */
.svc-list { display: flex; flex-direction: column; }
.svc-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1.4rem 0.5rem 1.4rem 0;
  border-top: 1px solid var(--line);
  cursor: pointer;
  transition: padding 0.4s var(--ease), color 0.3s var(--ease);
}
.svc-row:last-child { border-bottom: 1px solid var(--line); }
.svc-row .svc-no { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-3); letter-spacing: 0.1em; transition: color 0.3s; }
.svc-row .svc-name { font-family: var(--display); font-size: clamp(1.5rem, 3vw, 2.3rem); font-weight: 440; letter-spacing: -0.02em; transition: transform 0.5s var(--ease), color 0.3s; color: var(--ink); }
.svc-row .svc-arrow { opacity: 0; transform: translateX(-8px); transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); color: var(--signal); }
.svc-row:hover, .svc-row.active { padding-left: 1.1rem; }
.svc-row:hover .svc-name, .svc-row.active .svc-name { color: var(--signal); }
.svc-row:hover .svc-arrow, .svc-row.active .svc-arrow { opacity: 1; transform: translateX(0); }
.svc-row:hover .svc-no, .svc-row.active .svc-no { color: var(--ink); }

/* detail panel coupled to picker */
.svc-detail { position: relative; min-height: 320px; }
.svc-pane { position: absolute; inset: 0; opacity: 0; transform: translateY(14px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); pointer-events: none; }
.svc-pane.is-active { opacity: 1; transform: none; pointer-events: auto; position: relative; }

/* tilt / work card */
.tilt { transform-style: preserve-3d; transition: transform 0.4s var(--ease); will-change: transform; }
.tilt-inner { transform: translateZ(40px); }

.work-card {
  position: relative;
  display: block;
  border-radius: 4px;
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 4 / 3;
}
.work-card .wc-media { position: absolute; inset: 0; }
.work-card .wc-media > * { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.work-card:hover .wc-media > * { transform: scale(1.05); }
.work-card .wc-meta {
  position: absolute; inset: auto 0 0 0; z-index: 3;
  padding: 1.3rem 1.4rem;
  color: var(--paper);
  background: linear-gradient(to top, rgba(15,12,8,0.82), rgba(15,12,8,0) 90%);
  display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem;
}
.work-card .wc-tag { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; color: var(--signal); }

/* stat block */
.stat { display: flex; flex-direction: column; gap: 0.4rem; }
.stat .numeral { color: var(--ink); }
.stat .stat-label { color: var(--ink-2); font-size: 0.95rem; max-width: 26ch; }

/* ---------- 9. MARQUEE-FREE LIVE TICKER (interactive, not scrolling) ---------- */
.signal-bar {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
}
.signal-bar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 0 rgba(100, 116, 139,0.5); animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(100, 116, 139,0.45);} 70%{ box-shadow:0 0 0 9px rgba(100, 116, 139,0);} 100%{box-shadow:0 0 0 0 rgba(100, 116, 139,0);} }
.signal-now { color: var(--ink); transition: opacity 0.4s var(--ease); }

/* ---------- 10. THE CONNECTED DIAGRAM ---------- */
.diagram { position: relative; width: 100%; aspect-ratio: 1 / 1; max-width: 540px; }
.diagram canvas { position: absolute; inset: 0; }

/* ---------- 11. FOOTER ---------- */
.footer { background: var(--night); color: var(--paper); padding-block: clamp(3.5rem, 7vw, 6rem) 2.5rem; position: relative; overflow: hidden; }
.footer a { color: var(--paper); }
.footer .foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: clamp(1.5rem, 3vw, 3rem); }
.footer .foot-head { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.1rem; }
.footer .foot-link { display: block; padding: 0.35rem 0; color: color-mix(in srgb, var(--paper) 78%, transparent); transition: color 0.25s, transform 0.3s var(--ease); }
.footer .foot-link:hover { color: var(--signal); transform: translateX(4px); }
.footer .foot-big { font-family: var(--display); font-size: clamp(2.6rem, 9vw, 7rem); line-height: 0.9; letter-spacing: -0.03em; }
.footer .foot-bottom { margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,0.12); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; color: var(--ink-3); font-size: 0.85rem; }

/* ---------- 12. POPUPS / MODALS ---------- */
.modal-root { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: var(--gutter); opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease); }
.modal-root.open { opacity: 1; pointer-events: auto; }
.modal-scrim { position: absolute; inset: 0; background: rgba(18, 14, 8, 0.5); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.modal {
  position: relative; z-index: 2;
  width: min(680px, 100%);
  max-height: 88vh; overflow: auto;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--sh-pop);
  transform: translateY(20px) scale(0.98);
  opacity: 0;
  transition: transform 0.5s var(--ease), opacity 0.4s var(--ease);
}
.modal-root.open .modal { transform: none; opacity: 1; }
.modal-head { padding: clamp(1.5rem, 3vw, 2.2rem); border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.modal-body { padding: clamp(1.5rem, 3vw, 2.2rem); }
.modal-close { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; flex: none; transition: background 0.3s, color 0.3s, transform 0.3s; }
.modal-close:hover { background: var(--ink); color: var(--paper); transform: rotate(90deg); }

/* mini newsletter popup (corner) */
.toast-pop {
  position: fixed; z-index: 280; right: clamp(1rem,3vw,2rem); bottom: clamp(1rem,3vw,2rem);
  width: min(380px, calc(100vw - 2rem));
  background: var(--paper-2); border: 1px solid var(--line-strong); border-radius: 6px;
  box-shadow: var(--sh-pop); padding: 1.5rem 1.5rem 1.4rem;
  transform: translateY(140%); opacity: 0;
  transition: transform 0.7s var(--ease), opacity 0.5s var(--ease);
}
.toast-pop.show { transform: none; opacity: 1; }
.toast-pop .tp-close { position: absolute; top: 0.7rem; right: 0.8rem; width: 28px; height: 28px; display: grid; place-items: center; color: var(--ink-3); border-radius: 50%; transition: color 0.2s, background 0.2s; }
.toast-pop .tp-close:hover { color: var(--ink); background: var(--paper-3); }

/* ---------- 13. FORMS ---------- */
.field { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.1rem; }
.field label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.input, .textarea, .select {
  width: 100%;
  font: inherit; font-size: 1rem;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.85rem 1rem;
  color: var(--ink);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s;
}
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); background: var(--paper-2); }
.textarea { resize: vertical; min-height: 120px; }

/* chip choices (real selectable - allowed functional use) */
.chips { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.chip {
  padding: 0.55rem 1rem; border: 1px solid var(--line-strong); border-radius: 3px;
  font-size: 0.9rem; font-weight: 550; color: var(--ink-2);
  transition: all 0.25s var(--ease); user-select: none;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* stepper */
.steps { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.steps .step { flex: 1; height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; }
.steps .step.done, .steps .step.current { background: var(--signal); }

/* ---------- 14. CUSTOM CURSOR ---------- */
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 400; pointer-events: none; border-radius: 50%; mix-blend-mode: normal; }
.cursor-dot { width: 6px; height: 6px; background: var(--signal); transform: translate(-50%,-50%); transition: width 0.3s var(--ease), height 0.3s var(--ease), opacity 0.3s; }
.cursor-ring { width: 34px; height: 34px; border: 1.5px solid var(--ink); transform: translate(-50%,-50%); transition: width 0.35s var(--ease), height 0.35s var(--ease), border-color 0.3s, opacity 0.3s; }
body.cursor-active .cursor-ring { width: 56px; height: 56px; border-color: var(--signal); }
body.cursor-active .cursor-dot { opacity: 0; }
@media (hover: none), (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- 15. REVEAL ----------
   Calmer than before: shorter travel (16px), faster easing (0.62s), so reveals
   read as a quiet settle, not animation spam fighting for attention. A SAFETY
   fallback guarantees content is never permanently invisible: if the
   IntersectionObserver never fires (script error, very tall first paint, an old
   engine), the keyframe below fades every reveal in after a short delay. The JS
   sets .js-reveal on <html> on boot, which cancels the fallback for the normal
   animated path. */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.62s var(--ease), transform 0.62s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-reveal="fade"] { transform: none; }
[data-reveal-stagger] > * { opacity: 0; transform: translateY(14px); transition: opacity 0.55s var(--ease), transform 0.55s var(--ease); }
[data-reveal-stagger].in > * { opacity: 1; transform: none; }

/* split-line reveal for big headings */
.reveal-lines .line { display: block; overflow: hidden; }
.reveal-lines .line > span { display: block; transform: translateY(110%); transition: transform 0.78s var(--ease); }
.reveal-lines.in .line > span { transform: none; }

/* SAFETY: no observer / no JS -> never leave content hidden. These keyframes run
   only while <html> does NOT have .js-reveal (added by JS the moment reveals init). */
@keyframes reveal-safety { to { opacity: 1; transform: none; } }
html:not(.js-reveal) [data-reveal],
html:not(.js-reveal) [data-reveal-stagger] > * {
  animation: reveal-safety 0.6s var(--ease) 1.2s forwards;
}
html:not(.js-reveal) .reveal-lines .line > span { transform: none; }
/* and if motion is reduced, show everything immediately regardless */
@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-stagger] > *, .reveal-lines .line > span { opacity: 1 !important; transform: none !important; }
}

/* ---------- 16. UTILITIES ---------- */
.signal { color: var(--signal); }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.center { text-align: center; }
.flow > * + * { margin-top: 1.1rem; }
.flow-lg > * + * { margin-top: 1.8rem; }
.row { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.between { justify-content: space-between; }
.pad-top { padding-top: clamp(1rem, 3vw, 2.5rem); }
.tag-mono { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.underline-art { text-decoration: underline; text-decoration-color: var(--signal); text-underline-offset: 6px; text-decoration-thickness: 2px; }
.maxw-sm { max-width: 540px; }
.maxw-md { max-width: 720px; }
.no-scroll { overflow: hidden; }

/* hover-glow ring for diagram nodes (canvas handles most) */
.kicker {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
}
.kicker .ln { width: 38px; height: 1px; background: var(--line-strong); }

/* ---------- 17. RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .footer .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: block; }
  .footer .foot-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 560px) {
  .footer .foot-grid { grid-template-columns: 1fr; }
  .btn { width: auto; }
}

/* ---------- 18. ACCORDION ---------- */
.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: baseline; justify-content: space-between; gap: 1.5rem;
  padding: 1.5rem 0;
  font-family: var(--display); font-size: clamp(1.15rem, 2.2vw, 1.6rem); font-weight: 440; letter-spacing: -0.015em;
  transition: color 0.3s var(--ease);
}
.acc-item summary::-webkit-details-marker { display: none; }
.acc-item summary:hover { color: var(--signal); }
.acc-item .acc-sign { flex: none; width: 26px; height: 26px; position: relative; margin-top: 0.4rem; }
.acc-item .acc-sign::before, .acc-item .acc-sign::after { content: ""; position: absolute; background: var(--signal); transition: transform 0.4s var(--ease); }
.acc-item .acc-sign::before { left: 0; right: 0; top: 12px; height: 2px; }
.acc-item .acc-sign::after { top: 0; bottom: 0; left: 12px; width: 2px; }
.acc-item[open] .acc-sign::after { transform: scaleY(0); }
.acc-item .acc-body { padding: 0 0 1.6rem; max-width: 60ch; color: var(--ink-2); }
.acc-item .acc-body .mono { display: block; margin-top: 0.8rem; }

/* ---------- 19. BENTO ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: clamp(0.8rem, 1.5vw, 1.2rem); grid-auto-rows: minmax(150px, auto); }
.bento > * { border: 1px solid var(--line); border-radius: 4px; padding: clamp(1.3rem, 2vw, 1.9rem); background: var(--paper-2); position: relative; overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--sh-1); transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.4s; }
.bento > *:hover { box-shadow: var(--sh-3); border-color: var(--line-strong); transform: translateY(-3px); }
.b-2 { grid-column: span 2; } .b-3 { grid-column: span 3; } .b-4 { grid-column: span 4; } .b-6 { grid-column: span 6; }
.b-r2 { grid-row: span 2; }
.b-ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.b-ink .muted { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.b-ink .mono { color: color-mix(in srgb, var(--paper) 55%, transparent); }
.b-signal { background: var(--signal); color: #fff; border-color: var(--signal); }
.b-signal .mono { color: rgba(255,255,255,0.75); }
@media (max-width: 860px) { .bento { grid-template-columns: repeat(2, 1fr); } .b-3, .b-4, .b-6 { grid-column: span 2; } .b-2 { grid-column: span 1; } }

/* ---------- 20. BIG QUOTE ---------- */
.quote-xl { font-family: var(--display); font-weight: 420; font-size: clamp(1.8rem, 4.6vw, 3.6rem); line-height: 1.08; letter-spacing: -0.02em; max-width: 22ch; }
.quote-xl .signal { font-style: italic; }

/* split layout */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 4.5rem); align-items: center; }
.split-40 { grid-template-columns: 0.8fr 1.2fr; }
@media (max-width: 900px) { .split, .split-40 { grid-template-columns: 1fr; } }

/* hero layout */
.hero-grid { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
@media (max-width: 980px) { .hero-grid { grid-template-columns: 1fr; } .hero-aside { display: none; } }

/* eyebrow chapter index (intentional editorial numbering, used consistently) */
.chapter { display: inline-flex; align-items: center; gap: 0.7rem; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.4rem; }
.chapter b { color: var(--signal); font-weight: 400; }
.chapter .ln { width: 30px; height: 1px; background: var(--line-strong); }

/* dark contrast section helper (use ONCE, sparingly) */
.night { background: var(--night); color: var(--paper); }
.night .lead, .night .muted { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.night .card { background: var(--night-2); border-color: rgba(255,255,255,0.1); }
.night .mono { color: color-mix(in srgb, var(--paper) 55%, transparent); }
.night .divider { background: rgba(255,255,255,0.12); }

/* ============================================================
   21. HOME PAGE CRAFT PASS (iteration 1)
   Depth, pointer-parallax, coupled interactions. Light theme kept.
   ============================================================ */

/* --- parallax scene: layers shift independently of pointer --- */
[data-parallax-scene] [data-depth] { will-change: transform; }

/* warm radial light bloom behind the hero, never a blue/purple glow */
.hero-glow {
  position: absolute;
  top: -6%; right: -4%;
  width: 46vw; height: 46vw; max-width: 720px; max-height: 720px;
  z-index: 1; pointer-events: none;
  background: radial-gradient(circle at 60% 40%,
              rgba(100, 116, 139, 0.10) 0%,
              rgba(100, 116, 139, 0.04) 34%,
              transparent 66%);
  filter: blur(8px);
}
@media (max-width: 980px) { .hero-glow { width: 80vw; height: 80vw; top: -2%; right: -18%; } }

/* hero headline: a draw-on underline under the signal word */
.signal-underline { position: relative; display: inline-block; }
.signal-underline::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0.08em;
  height: 0.07em; background: var(--signal);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1.1s var(--ease) 0.7s;
}
.reveal-lines.in .signal-underline::after,
.hero-h1.in .signal-underline::after { transform: scaleX(1); }

/* hero stat strip: lead stat dominates, rest sit quieter */
.hero-stats {
  display: grid;
  grid-template-columns: auto 1px auto auto;
  align-items: end;
  gap: 0 clamp(1.4rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
}
.hero-stat dt { margin: 0; }
.hero-stat dd { margin: 0.25rem 0 0; }
.hero-stat .numeral { font-size: clamp(1.7rem, 3.4vw, 2.6rem); transition: color 0.35s var(--ease); }
.hero-stat.is-lead .numeral { font-size: clamp(2.6rem, 5vw, 3.8rem); color: var(--signal); }
.hero-stats::before {
  content: ""; grid-column: 2; grid-row: 1;
  width: 1px; height: 70%; align-self: center; background: var(--line);
}
.hero-stat:not(.is-lead):hover .numeral { color: var(--signal); }
@media (max-width: 520px) {
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 1.2rem 1.4rem; }
  .hero-stats::before { display: none; }
  .hero-stat.is-lead { grid-column: 1 / -1; }
}

/* framed diagram with a live readout coupled to the hovered node */
.diagram-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 6px;
  background:
    radial-gradient(120% 120% at 50% 30%, var(--paper-2) 0%, transparent 70%),
    var(--paper);
  padding: clamp(0.8rem, 1.8vw, 1.4rem);
  box-shadow: var(--sh-3);
}
.diagram-frame .diagram { max-width: none; margin-inline: auto; }
.diagram-readout {
  display: flex; flex-direction: column; gap: 0.15rem;
  margin-top: 0.4rem; padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}
.diagram-readout .mono { color: var(--ink-3); }
.diagram-readout .dr-label {
  font-family: var(--display); font-style: italic;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem); letter-spacing: -0.01em;
  color: var(--ink); transition: color 0.3s var(--ease);
}
.diagram-readout .dr-label.is-live { color: var(--signal); }

/* show the hero diagram on mobile (below the lede) instead of hiding it */
@media (max-width: 980px) {
  .hero-aside { display: block !important; transform: none !important; max-width: 460px; }
  .diagram-frame .diagram { aspect-ratio: 4 / 3; }
}

/* --- thesis trio: a coupled 3-phase progression, not 3 equal cards --- */
.thesis-trio {
  display: grid;
  grid-template-columns: 1fr 1.18fr 1fr;
  gap: clamp(0.9rem, 1.8vw, 1.4rem);
  align-items: stretch;
}
.thesis-card { display: flex; flex-direction: column; overflow: hidden; }
.thesis-card .tc-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.thesis-card .tc-step { color: var(--ink-3); }
.thesis-card.is-signal { background: var(--ink); color: var(--paper); border-color: var(--ink); transform: translateY(-12px); box-shadow: var(--sh-3); }
.thesis-card.is-signal .tc-step { color: rgba(242,237,227,0.5); }
.thesis-card.is-signal .mono { color: rgba(242,237,227,0.6); }
.thesis-card.is-signal .tc-body-dim { color: rgba(242,237,227,0.78); }
/* progressive disclosure line, hidden until hover/focus */
.thesis-card .tc-reveal {
  margin-top: auto;
  display: grid; grid-template-rows: 0fr;
  opacity: 0; transform: translateY(6px);
  transition: grid-template-rows 0.5s var(--ease), opacity 0.45s var(--ease), transform 0.45s var(--ease), padding-top 0.4s var(--ease);
  font-size: 0.95rem; color: var(--ink-2);
  overflow: hidden; padding-top: 0;
}
.thesis-card .tc-reveal > * { min-height: 0; }
.thesis-card .tc-reveal .mono { color: var(--signal); display: inline; margin-right: 0.4rem; }
.thesis-card:hover .tc-reveal,
.thesis-card:focus-within .tc-reveal {
  grid-template-rows: 1fr; opacity: 1; transform: none;
  padding-top: 1.1rem; margin-top: 1.4rem;
  border-top: 1px solid var(--line);
}
.thesis-card.is-signal:hover .tc-reveal { border-top-color: rgba(255,255,255,0.16); color: rgba(242,237,227,0.85); }
.thesis-card.is-signal:hover .tc-reveal .mono { color: var(--signal); }
.thesis-card:hover { transform: translateY(-4px); }
.thesis-card.is-signal:hover { transform: translateY(-16px); }
/* the contrast card carries a slow live signal pulse */
.thesis-card .tc-pulse {
  position: absolute; top: 1.2rem; right: 1.4rem;
  width: 9px; height: 9px; border-radius: 50%; background: var(--signal);
  box-shadow: 0 0 0 0 rgba(100, 116, 139,0.5);
  animation: pulse 2.6s var(--ease) infinite;
}
@media (max-width: 760px) {
  .thesis-trio { grid-template-columns: 1fr; }
  .thesis-card.is-signal { transform: none; }
  .thesis-card.is-signal:hover { transform: translateY(-4px); }
}

/* --- services picker: per-system meter coupled to the selection --- */
.svc-meter { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.4rem; }
.svc-meter-num { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em; color: var(--ink-3); }
.svc-meter-num [data-pane-index] { color: var(--signal); }
.svc-meter-sep { margin: 0 0.25rem; opacity: 0.6; }
.svc-meter-track { flex: 1; height: 2px; background: var(--line); position: relative; overflow: hidden; border-radius: 2px; }
.svc-meter-fill {
  position: absolute; inset: 0 auto 0 0;
  width: 100%; background: var(--signal);
  transform: scaleX(var(--pick-progress, 0.16)); transform-origin: left;
  transition: transform 0.55s var(--ease);
}
/* a soft tinted wash behind the active pane that nudges per system */
.svc-detail { isolation: isolate; }
.svc-detail::before {
  content: ""; position: absolute; z-index: -1;
  top: -1.4rem; right: -1rem; width: 42%; height: 42%;
  border-radius: 50%; opacity: 0.5; pointer-events: none;
  background: radial-gradient(circle, var(--signal-soft) 0%, transparent 70%);
  transform: translate(calc(var(--pick-progress, 0.16) * 30px), calc(var(--pick-progress, 0.16) * -14px));
  transition: transform 0.6s var(--ease);
}
.svc-pane.is-active { animation: svc-pane-in 0.55s var(--ease); }
@keyframes svc-pane-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.svc-pane h3 .em, .svc-pane h3 { transition: none; }

/* --- numbers: one hero stat dominates, the rest stack quietly --- */
.stat-row { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: stretch; }
.stat-hero {
  justify-content: flex-end;
  border-top: 2px solid var(--ink);
  padding-top: 1.4rem;
}
.stat-hero .numeral { font-size: clamp(5rem, 13vw, 11rem); color: var(--signal); line-height: 0.82; }
.stat-hero .stat-label { font-size: 1.15rem; max-width: 24ch; color: var(--ink); margin-top: 0.6rem; }
.stat-stack { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.4rem, 3vw, 2.4rem); align-content: start; }
.stat-stack .stat { padding-top: 1.1rem; border-top: 1px solid var(--line); transition: border-color 0.4s var(--ease); }
.stat-stack .stat:hover { border-top-color: var(--signal); }
.stat-stack .numeral { font-size: clamp(2.6rem, 5vw, 4rem); }
@media (max-width: 760px) {
  .stat-row { grid-template-columns: 1fr; }
  .stat-stack { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 460px) { .stat-stack { grid-template-columns: 1fr; } }

/* --- bento flywheel: make the compounding card read as a loop --- */
.b-ink .flywheel { margin-top: auto; padding-top: 1.2rem; }
.flywheel-loop { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; }
.flywheel-loop .fw-node { color: var(--paper); opacity: 0.55; transition: opacity 0.3s var(--ease), color 0.3s var(--ease); }
.flywheel-loop .fw-arrow { color: var(--signal); opacity: 0.7; }
.b-ink:hover .flywheel-loop .fw-node { opacity: 0.9; }

/* speed stat: emphasise the multiplier */
.b-signal .numeral { line-height: 0.85; }

/* --- magnetic press feedback on primary buttons --- */
.btn:active { transform: scale(0.97); }
.btn-lg { box-shadow: var(--sh-2); }
.btn-signal.btn-lg:hover { box-shadow: var(--sh-3); }

/* ============================================================
   22. GLOBAL COMPONENT CRAFT PASS (iteration 5)
   Polish the shared UI that appears on all six pages: nav, buttons,
   links, modals, stepper, toast, form fields, chips, cursor.
   Additive only. No hook renamed or removed. Light theme kept.
   ============================================================ */

/* --- NAV: scroll progress hairline + condensed scrolled state --- */
.nav::after {
  content: "";
  position: absolute; left: 0; bottom: -1px;
  height: 2px; width: 100%;
  transform: scaleX(var(--scroll-progress, 0)); transform-origin: left;
  background: linear-gradient(90deg, var(--signal), var(--signal-deep));
  opacity: 0; transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.nav.scrolled::after { opacity: 1; }
.nav.scrolled { box-shadow: 0 1px 0 rgba(40,30,16,0.04), 0 10px 30px -24px rgba(40,30,16,0.4); }
/* the active page gets a small travelling marker under the label, plus the underline */
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 50%; bottom: 0.05rem;
  width: 4px; height: 4px; border-radius: 50%; background: var(--signal);
  transform: translate(-50%, 6px) scale(0); opacity: 0;
  transition: transform 0.45s var(--ease) 0.1s, opacity 0.4s var(--ease);
}
.nav.scrolled .nav-links a[aria-current="page"]::after { transform: translate(-50%, 0) scale(1); opacity: 1; }
/* brand mark answers the cursor with a tiny lift */
.brand { transition: transform 0.4s var(--ease); }
.brand:hover { transform: translateY(-1px); }
.brand .mark svg circle:last-of-type { transition: transform 0.4s var(--ease); }

/* the nav Start-a-project button: a quick light sweep on hover (transform only) */
.nav-cta .btn::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -40%;
  width: 32%; z-index: 1; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.22), transparent);
  transform: translateX(0) skewX(-14deg); opacity: 0;
}
.nav-cta .btn:hover::after { animation: nav-sheen 0.7s var(--ease); }
@keyframes nav-sheen { 0% { transform: translateX(0) skewX(-14deg); opacity: 0; } 30% { opacity: 1; } 100% { transform: translateX(420%) skewX(-14deg); opacity: 0; } }

/* --- BUTTONS: resting depth + a touch of overshoot on the arrow --- */
.btn { box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(40,30,16,0.05); }
.btn:hover { box-shadow: var(--sh-2); }
.btn-signal:hover .arrow, .btn:hover .arrow { transform: translate(4px, -4px); }
.btn .arrow { will-change: transform; }
.btn-ghost:hover { box-shadow: var(--sh-2); }

/* --- LINKS: the underline draws AND a small lead dot slides in --- */
.link::before {
  content: ""; position: absolute; left: -2px; bottom: 1px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--signal);
  transform: scale(0); transform-origin: center;
  transition: transform 0.35s var(--ease);
}
.link:hover::before { transform: scale(1); }
.link:hover { color: var(--signal); }
.link.no-dot::before { display: none; }

/* --- MODALS: a softer spring on open, panel cross-fade, animated steps --- */
.modal { transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s var(--ease); }
.modal-root.open .modal { transform: none; }
.modal-scrim { transition: opacity 0.4s var(--ease), backdrop-filter 0.4s var(--ease); }
/* head gets a quiet warm wash so the modal reads as a designed object */
.modal-head { background: linear-gradient(180deg, var(--paper-2), color-mix(in srgb, var(--paper-3) 38%, var(--paper-2))); position: relative; }
.modal-head::after { content: ""; position: absolute; left: clamp(1.5rem,3vw,2.2rem); bottom: -1px; width: 40px; height: 2px; background: var(--signal); }
/* step panels animate in when shown (the stepper swaps [hidden]) */
.step-panel { animation: step-in 0.45s var(--ease); }
@keyframes step-in { from { opacity: 0; transform: translateX(14px); } to { opacity: 1; transform: none; } }
/* the steps progress bar: each segment fills smoothly, current one pulses faintly */
.steps .step { position: relative; background: var(--line); }
.steps .step::after {
  content: ""; position: absolute; inset: 0; border-radius: 2px;
  background: var(--signal); transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.steps .step.done::after, .steps .step.current::after { transform: scaleX(1); }
.steps .step.current::after { background: linear-gradient(90deg, var(--signal), var(--signal-deep)); }
/* keep the old solid-fill rule from clashing: let the ::after carry the colour */
.steps .step.done, .steps .step.current { background: var(--line); }

/* --- TOAST: a live signal dot + smoother lift --- */
.toast-pop { transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s var(--ease); }
.toast-pop .mono-signal { position: relative; padding-left: 1rem; }
.toast-pop .mono-signal::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%; background: var(--signal);
  box-shadow: 0 0 0 0 rgba(100, 116, 139,0.5); animation: pulse 2.4s var(--ease) infinite;
}

/* --- FORM FIELDS: focused field lifts + its label switches to signal --- */
.field { position: relative; transition: transform 0.3s var(--ease); }
.field:focus-within { transform: translateY(-1px); }
.field:focus-within label { color: var(--signal); }
.input, .textarea, .select { will-change: border-color, box-shadow; }
.input:focus, .textarea:focus, .select:focus { box-shadow: 0 0 0 3px var(--signal-soft), 0 6px 18px -12px rgba(40,30,16,0.4); }

/* --- CHIPS: tactile press + a check that scales in when selected ---
   chips hold bare text (no inner span) on all 6 pages, so we colour the
   element directly and keep any decoration BEHIND with z-index, never over text. */
.chip {
  position: relative;
  transition: background 0.28s var(--ease), color 0.22s var(--ease), border-color 0.25s var(--ease), transform 0.16s var(--ease), box-shadow 0.25s var(--ease), padding-right 0.28s var(--ease);
}
.chip:hover { transform: translateY(-1px); box-shadow: var(--sh-1); }
.chip:active { transform: scale(0.94); }
/* the check tick belongs to MULTI-SELECT chips (enquiry + project modal), not the
   single-select work filter (which carries data-filter). Scope it away from filters. */
.chip:not([data-filter]) { transition: background 0.28s var(--ease), color 0.22s var(--ease), border-color 0.25s var(--ease), transform 0.16s var(--ease), box-shadow 0.25s var(--ease), padding-right 0.28s var(--ease); }
.chip:not([data-filter])[aria-pressed="true"] { box-shadow: var(--sh-2); padding-right: 1.9rem; }
.chip:not([data-filter])::after {
  content: ""; position: absolute; right: 0.7rem; top: 50%;
  width: 9px; height: 5px; margin-top: -4px;
  border-left: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(-45deg) scale(0); transform-origin: center;
  opacity: 0; transition: transform 0.3s var(--ease), opacity 0.25s var(--ease);
}
.chip:not([data-filter])[aria-pressed="true"]::after { transform: rotate(-45deg) scale(1); opacity: 1; }

/* --- FORM SUCCESS: animate in instead of a hard swap (global) --- */
.btn.is-sending { pointer-events: none; }
.btn.is-sending span { opacity: 0.55; }
.btn.is-sending .arrow { animation: send-arrow 0.6s var(--ease) infinite; }
@keyframes send-arrow { 0% { transform: translate(0,0); } 50% { transform: translate(5px,-5px); opacity: 0.3; } 51% { transform: translate(-5px,5px); opacity: 0; } 52% { opacity: 0.3; } 100% { transform: translate(0,0); opacity: 1; } }
.form-done.is-done { animation: done-rise 0.5s var(--ease) both; }
@keyframes done-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.form-done.is-done .numeral { animation: done-pop 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both; transform-origin: center; }
@keyframes done-pop { 0% { transform: scale(0.3); opacity: 0; } 60% { transform: scale(1.12); } 100% { transform: scale(1); opacity: 1; } }
.form-done.is-done h3, .form-done.is-done .mono-signal { animation: done-rise 0.5s var(--ease) 0.18s both; }
.form-done.is-done p { animation: done-rise 0.5s var(--ease) 0.26s both; }

/* --- CURSOR: a press state + a soft text-hover state --- */
.cursor-ring { transition: width 0.35s var(--ease), height 0.35s var(--ease), border-color 0.3s, opacity 0.3s, transform 0.06s linear; }
body.cursor-press .cursor-ring { width: 26px; height: 26px; border-color: var(--signal); }
body.cursor-press .cursor-dot { opacity: 1; width: 5px; height: 5px; }
body.cursor-text .cursor-ring { width: 6px; height: 30px; border-radius: 2px; border-color: var(--signal); }
body.cursor-text .cursor-dot { opacity: 0; }

/* ============================================================
   23. SHARED VISUAL SYSTEMS CRAFT PASS (iteration 6)
   Refine the systems that appear on every page so the whole site lifts at once:
   the framed diagram, the chapter/section devices, depth on the framed visuals,
   and a tighter, warmer editorial type rhythm. Additive only, light theme kept,
   no documented hook renamed or removed.
   ============================================================ */

/* --- THE FRAMED DIAGRAM: read it as a crafted instrument, not a chart in a box --- */
.diagram-frame {
  /* warm layered light: a soft top sheen over the paper, with real depth beneath */
  background:
    radial-gradient(130% 90% at 50% 0%, var(--paper-2) 0%, transparent 62%),
    linear-gradient(180deg, color-mix(in srgb, var(--paper-2) 92%, #fff), var(--paper));
  box-shadow: var(--sh-3);
  overflow: hidden;
}
/* a single faint corner index so the frame reads as a labelled plate, not a naked box.
   one quiet mono mark, top-left, never a pill or a colour strip. */
.diagram-frame::before {
  content: "FIG.";
  position: absolute; top: 0.9rem; left: 1.1rem; z-index: 2;
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.22em;
  color: var(--ink-3); opacity: 0.7; pointer-events: none;
}
/* the live readout gains a small leading signal node so it reads as a live instrument */
.diagram-readout .dr-label { position: relative; }
.diagram-readout .dr-label.is-live { color: var(--signal); }

/* --- CHAPTER + SECTION devices: a finer editorial number, hairline that animates in --- */
.chapter b, .section-no b { font-variant-numeric: tabular-nums; }
.chapter .ln, .section-no .ln, .kicker .ln {
  position: relative; overflow: hidden;
}
/* a thin signal trace travels the chapter hairline once it reveals, so the number device
   feels alive without being a load-spam fade. transform-only, reduced-motion safe. */
.chapter .ln::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--signal), transparent);
  transform: translateX(-100%);
}
[data-reveal].in .chapter .ln::after,
.in .chapter .ln::after { animation: chapter-trace 2.2s var(--ease) 0.4s; }
@keyframes chapter-trace { 0% { transform: translateX(-100%); } 60%, 100% { transform: translateX(220%); } }

/* --- NUMERAL: a touch more optical polish on the big editorial figures --- */
.numeral { font-feature-settings: "ss01"; }

/* --- DEPTH CONSISTENCY: the framed/ink contrast cards sit on the same warm light --- */
.svc-detail { will-change: auto; }

/* reduced-motion: kill the chapter trace and any decorative diagram motion cue */
@media (prefers-reduced-motion: reduce) {
  .chapter .ln::after, .section-no .ln::after { animation: none !important; display: none; }
}

/* ============================================================
   24. FINAL COHESION + ACCESSIBILITY PASS (iteration 7)
   Whole-site focus visibility, consistent custom-control focus rings, and a
   few small cohesion touches. Additive only, light theme kept, no hook renamed.
   ============================================================ */

/* --- FOCUS: every custom interactive control shows a clear keyboard ring ---
   The global :focus-visible outline can be clipped by overflow:hidden surfaces
   (work tiles, chips, summaries), so give those an inset ring that always shows. */
.svc-row:focus-visible,
.acc-item summary:focus-visible,
.eng-switch button:focus-visible,
.vs-switch button:focus-visible,
.flywheel-steps .fw:focus-visible,
.filterbar .chip:focus-visible,
.car-dots b:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 2px;
}
/* work tiles + framed cards clip their content, so use an inset box-shadow ring
   that survives overflow:hidden instead of an outline that gets cut off */
.work-card:focus-visible,
.tile-face:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--paper), 0 0 0 4px var(--signal), var(--sh-3);
}
/* modal close button: a visible focus ring (it sits on a warm wash) */
.modal-close:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

/* --- CONTRAST: nudge the faintest caption ink up slightly so muted/caption text
   on warm paper clears a more comfortable contrast bar without changing the look.
   --ink-3 was #8B8475 (~3.6:1 on paper); #847D6E reads a touch stronger. --- */
:root { --ink-3: #847D6E; }

/* --- COHESION: a consistent resting + hover depth on the page-level alt cards
   that were defined inline per page, so card elevation reads the same site-wide.
   (Scoped narrowly; each page's own larger lifts still win by source order.) --- */
.next-step, .approach-step, .glyph, .coord-card, .coord-plate { box-shadow: var(--sh-1); }