/* =========================================================
   Latent Space Studio — shared chrome
   Used by Research / Systems / Index / Journal pages.
   ========================================================= */

:root {
  --color-bg-base: #0A0A0B;
  --color-bg-elevated: #141416;
  --color-bg-node: #1E1E20;
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #A1A1AA;
  --color-text-tertiary: rgba(161, 161, 170, 0.78); /* ≥4.5:1 on base + elevated */
  --color-border: #27272A;
  --color-border-soft: rgba(255, 255, 255, 0.06);
  --color-accent-active: #E4E4E7;
  --ease-spatial: cubic-bezier(0.16, 1, 0.3, 1);
  --color-focus-ring: rgba(190, 180, 255, 0.95);
  --violet-rgb:      150, 130, 255;   /* use as rgba(var(--violet-rgb), a) */
  --violet-deep-rgb: 130, 110, 255;

  /* Cool violet — the studio's single signature accent */
  --color-violet:        rgba(150, 130, 255, 1.00);
  --color-violet-border: rgba(150, 130, 255, 0.35);
  --color-violet-glow:   rgba(130, 110, 255, 0.18);
  --color-violet-soft:   rgba(140, 120, 255, 0.08);
  --color-violet-text:   rgba(190, 180, 255, 0.78);

  --font-sans: 'DM Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-display: 'Geist', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  --max-w: 1280px;
  --gutter: 40px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  overflow-x: hidden;
  overscroll-behavior-x: none;
  /* Stop iOS inflating text in landscape; keep user zoom intact */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  /* Tap feedback in the studio's violet instead of the default grey flash */
  -webkit-tap-highlight-color: rgba(150, 130, 255, 0.16);
}

html, body {
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100%;
}

body {
  /* Deep indigo above, cooler periwinkle below — a tonal violet gradient */
  background:
    radial-gradient(ellipse 120% 80% at 50% 0%,
      rgba(40, 30, 80, 0.18) 0%,
      rgba(10, 10, 11, 0) 60%),
    radial-gradient(ellipse 100% 60% at 50% 100%,
      rgba(60, 45, 130, 0.14) 0%,
      rgba(10, 10, 11, 0) 65%),
    var(--color-bg-base);
  background-attachment: fixed;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* Browser surfaces themed from the palette */
html { scrollbar-color: #3a3a42 var(--color-bg-base); scrollbar-width: thin; }
::selection { background: rgba(var(--violet-rgb), 0.38); color: #fff; }
input, textarea { caret-color: var(--color-violet-text); }

/* Shared keyboard focus ring (pages may refine, never remove) */
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Skip link: hidden until a keyboard user tabs to it. Sits above the
   preloader so it is visible even while the curtain is still up. */
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 10000;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-violet-border);
  border-radius: 2px;
  transform: translateY(calc(-100% - 24px));
}
.skip-link:focus { transform: none; }
/* The target takes focus only so the next Tab starts in the content */
#main:focus { outline: none; }

/* Faint film grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  opacity: 0.05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* Violet breathing background — applied to inner pages via .warmth-bg div */
.warmth-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 30% 90%,
      rgba(110, 90, 235, 0.16) 0%, transparent 65%),
    radial-gradient(ellipse 60% 40% at 70% 85%,
      rgba(90,  70, 210, 0.10) 0%, transparent 60%);
  animation: warmth-breathe 8s ease-in-out 1 forwards;
}

@keyframes warmth-breathe {
  from { opacity: 0.5; }
  to   { opacity: 1.0; }
}

@media (prefers-reduced-motion: reduce) {
  .warmth-bg { animation: none; }
  .research-list li::before { transition: none; }
}

/* Corner ticks (top only on doc pages) */
.tick {
  position: fixed; width: 14px; height: 14px;
  border-color: rgba(255, 255, 255, 0.35);
  border-style: solid;
  z-index: 5; pointer-events: none;
}
.tick.tl { top: 20px; left: 20px; border-width: 1px 0 0 1px; }
.tick.tr { top: 20px; right: 20px; border-width: 1px 1px 0 0; }
.tick.bl { bottom: 20px; left: 20px; border-width: 0 0 1px 1px; }
.tick.br { bottom: 20px; right: 20px; border-width: 0 1px 1px 0; }

/* =========================================================
   Nav
   ========================================================= */

.studio-nav {
  position: relative;
  z-index: 4;
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px var(--gutter);
}

.brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-text-primary);
}
.brand-mark {
  width: 14px; height: 14px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  position: relative; transform: rotate(45deg);
}
.brand-mark::after {
  content: ""; position: absolute; inset: 3px; background: #fff;
}

.nav-links {
  display: flex; gap: 36px;
  position: relative;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color 150ms var(--ease-spatial);
  position: relative;
  padding-bottom: 4px;
}
.nav-links a:hover { color: #fff; }
.nav-links a.active {
  color: #fff;
}
/* Shared underline indicator (injected by page-transitions.js).
   Morphs between active tabs during navigation. */
.nav-indicator {
  position: absolute;
  bottom: -2px;
  height: 1px;
  background: var(--color-violet-text);
  left: 0;
  width: 0;
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 0 8px rgba(var(--violet-rgb), 0.45);
  transition:
    left  520ms cubic-bezier(0.7, 0, 0.2, 1),
    width 520ms cubic-bezier(0.7, 0, 0.2, 1),
    opacity 220ms ease-out;
}

.nav-meta {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--color-text-secondary);
  display: flex; align-items: center; gap: 8px;
}
.status-dot {
  width: 6px; height: 6px; background: #E4E4E7; border-radius: 50%;
  animation: pulse 2.4s ease-in-out 2;
}
@keyframes pulse {
  0%, 100% { opacity: 0.45; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* =========================================================
   Page header
   ========================================================= */

.page-shell {
  position: relative;
  z-index: 3;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter) 120px;
}

.page-head {
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 64px;
  align-items: end;
}

.page-head .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--color-text-secondary);
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 28px;
}
.page-head .eyebrow .bar {
  width: 28px; height: 1px; background: rgba(255, 255, 255, 0.35);
}

.page-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(36px, 5.2vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
.page-title em {
  /* one typeface for the whole title; the emphasised phrase keeps only its tint */
  font-style: normal;
  color: rgba(255, 255, 255, 0.66);
}

/* Text morph (text-morph.js): the morphing phrase takes its own line under
   the steady lead-in, with every phrase stacked in one cell so the title
   holds the longest phrase's room and never reflows mid-cycle */
.text-morph { display: block; position: relative; }
.text-morph-stage { display: grid; }
/* Hairline under the current phrase, kin to .nav-indicator: it glides to
   each incoming phrase's width so the cycling slot reads as one */
.text-morph-line {
  position: absolute;
  left: 0; top: 0;
  width: 0;
  height: 1px;
  background: var(--color-violet-text);
  box-shadow: 0 0 8px rgba(var(--violet-rgb), 0.45);
  opacity: 0;
  pointer-events: none;
  transition:
    left  520ms cubic-bezier(0.7, 0, 0.2, 1),
    top   520ms cubic-bezier(0.7, 0, 0.2, 1),
    width 520ms cubic-bezier(0.7, 0, 0.2, 1),
    opacity 220ms ease-out;
}
.text-morph-layer {
  grid-area: 1 / 1;
  justify-self: start;
  transform-origin: left center;
}
.text-morph-sr {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-lead {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 56ch;
  text-wrap: pretty;
}

/* =========================================================
   Mono labels and small UI bits
   ========================================================= */

.mono { font-family: var(--font-mono); }
.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 22px; padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: 2px;
}
.chip i {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--color-text-tertiary);
}
.chip.active i { background: #E4E4E7; }
.chip.live i {
  background: #E4E4E7;
  animation: pulse 2.4s ease-in-out 2;
}
.chip.sealed { color: var(--color-text-secondary); }
.chip.sealed i { background: #52525B; }
.chip.warn i { background: #FACC15; }
.chip.reading i { background: #F59E0B; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  height: 40px; padding: 0 18px;
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 500; letter-spacing: -0.005em;
  border-radius: 999px; border: 1px solid transparent;
  transition: all 150ms var(--ease-spatial);
  user-select: none; cursor: pointer;
}
.btn-primary { background: #fff; color: #000; }
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 5px 16px rgba(var(--violet-rgb), 0.30);
}
.btn-ghost {
  background: transparent; color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover {
  background: var(--color-violet-soft);
  border-color: var(--color-violet-border);
  color: var(--color-violet-text);
}

/* Section headings within a page */
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 56px 0 20px;
  border-bottom: 1px solid var(--color-border-soft);
  margin-bottom: 4px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: #fff;
}
.section-head .label { color: var(--color-text-tertiary); }

/* =========================================================
   Footer (legacy slim variant — kept for backward compat)
   ========================================================= */

.studio-footer.slim {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding: 28px var(--gutter) 36px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(161, 161, 170, 0.7);
  border-top: 1px solid var(--color-border);
}
.studio-footer.slim .col { display: flex; flex-direction: column; gap: 6px; }
.studio-footer.slim .right { text-align: right; align-items: flex-end; }
.studio-footer.slim .value { color: rgba(255, 255, 255, 0.85); }

/* =========================================================
   Page transitions (driven by page-transitions.js)
   ========================================================= */

.page-shell {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 540ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 540ms cubic-bezier(0.16, 1, 0.3, 1);
}
body.entered .page-shell {
  opacity: 1;
  transform: translateY(0);
}
body.leaving .page-shell {
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity 280ms cubic-bezier(0.65, 0, 0.35, 1),
    transform 280ms cubic-bezier(0.65, 0, 0.35, 1);
}

/* Footer trails in slightly after main */
.studio-footer {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 540ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 540ms cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 180ms;
}
body.entered .studio-footer { opacity: 1; transform: translateY(0); }
body.leaving .studio-footer {
  opacity: 0;
  transition-delay: 0ms;
  transition-duration: 220ms;
}

/* Subtle stagger of children inside the page-head on enter */
.page-head .eyebrow,
.page-head .page-title,
.page-head .page-lead {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}
body.entered .page-head .eyebrow    { opacity: 1; transform: none; transition-delay: 60ms; }
body.entered .page-head .page-title { opacity: 1; transform: none; transition-delay: 140ms; }
body.entered .page-head .page-lead  { opacity: 1; transform: none; transition-delay: 220ms; }

/* Top progress sliver — visual handoff between pages */
.page-progress {
  position: fixed; top: 0; left: 0;
  height: 1px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: #fff;
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  box-shadow: 0 0 14px rgba(180, 170, 255, 0.45);
  transition: transform 280ms cubic-bezier(0.65, 0, 0.35, 1),
              opacity 200ms ease-out;
}
body.leaving .page-progress {
  transform: scaleX(1);
  opacity: 1;
}
body.entered .page-progress {
  transform: scaleX(1);
  opacity: 0;
  transition: opacity 360ms ease-out 60ms;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .page-shell, .studio-footer,
  .page-head .eyebrow, .page-head .page-title, .page-head .page-lead,
  .nav-indicator, .page-progress {
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
  .page-progress { display: none !important; }
}

/* =========================================================
   Footer (rich, with contact)
   ========================================================= */

.studio-footer {
  position: relative;
  z-index: 3;
  isolation: isolate;
  overflow: hidden;
  margin-top: 96px;
  padding: 56px var(--gutter) 28px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.footer-col .brand { margin-bottom: 4px; }
.footer-tagline {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-text-secondary);
  max-width: 36ch;
  text-wrap: pretty;
}
.footer-label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 2px;
}
.footer-link {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  transition: color 150ms var(--ease-spatial);
  width: fit-content;
}
.footer-link:hover { color: rgba(255,255,255,0.65); }
.footer-meta {
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.55;
  letter-spacing: 0.02em;
}
.footer-baseline {
  max-width: var(--max-w);
  margin: 48px auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--color-border-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--color-text-tertiary);
}
.footer-baseline .footer-page-meta { color: var(--color-text-secondary); }

/* Plasma backdrop (footer-plasma.js), fading up out of the page */
.footer-plasma {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 140px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 140px);
}

/* =========================================================
   Mobile magnetic dock (injected by page-transitions.js)
   Port of Componentry's Magnetic Dock: icons swell under the
   pointer or finger with spring physics. Mobile layout only.
   ========================================================= */

.dock-wrap {
  display: none;
  position: fixed;
  left: 0; right: 0;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  z-index: 60;
  justify-content: center;
  pointer-events: none;
}
.dock {
  pointer-events: auto;
  display: inline-flex;
  align-items: flex-end;
  gap: 6px;
  padding: 8px;
  border-radius: 22px;
  background: rgba(16, 16, 19, 0.72);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
}
.dock-item {
  --dock-size: 44px;
  position: relative;
  flex: none;
  display: block;
  width: var(--dock-size);
  height: var(--dock-size);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  outline: none;
  -webkit-touch-callout: none;
}
.dock-tile {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #26262A 0%, #151517 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: box-shadow 200ms var(--ease-spatial), border-color 200ms var(--ease-spatial);
}
.dock-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.16) 0%, transparent 50%);
  opacity: 0.6;
  transition: opacity 200ms var(--ease-spatial);
}
.dock-icon {
  width: 50%;
  height: 50%;
  display: block;
}
.dock-item.is-hover .dock-tile {
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45), 0 0 24px rgba(255, 255, 255, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.dock-item.is-hover .dock-tile::after { opacity: 1; }
.dock-item:focus-visible .dock-tile {
  border-color: rgba(255, 255, 255, 0.55);
}
.dock-item.active { color: #fff; }
.dock-item.active .dock-tile {
  border-color: rgba(var(--violet-rgb), 0.45);
}
.dock-item.active::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -6px;
  width: 4px; height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: rgba(var(--violet-rgb), 1);
  box-shadow: 0 0 6px rgba(var(--violet-rgb), 0.6);
}
.dock-label {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(14, 14, 16, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 6px) scale(0.92);
  transition: opacity 150ms ease-out, transform 150ms ease-out;
}
.dock-label::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -5px;
  width: 8px; height: 8px;
  margin-left: -4px;
  background: inherit;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transform: rotate(45deg);
}
.dock-item.is-hover .dock-label,
.dock-item:focus-visible .dock-label {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}
/* Narrow phones: tighter spacing, but icons stay at the 44px touch minimum.
   page-transitions.js limits the magnification to the room that is left. */
@media (max-width: 360px) {
  .dock { gap: 5px; padding: 7px; border-radius: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .dock-label { transition: none; }
}

/* Desktop nav: enlarge hit areas without moving the underline */
.nav-links a::before {
  content: ""; position: absolute; inset: -15px -12px -12px;
}
.brand { position: relative; }
.brand::before { content: ""; position: absolute; inset: -14px -6px; }

/* =========================================================
   Scroll reveals (driven by scroll-reveal.js)
   ========================================================= */

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms cubic-bezier(0.16, 1, 0.3, 1) var(--reveal-delay, 0ms),
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1) var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-reveal="fade"]  { transform: none; }
[data-reveal="left"]  { transform: translateX(-24px); }
[data-reveal="right"] { transform: translateX(24px);  }
[data-reveal="zoom"]  { transform: scale(0.96); }

[data-reveal].in-view {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 880px) {
  :root { --gutter: 22px; }
  .studio-nav { padding: 22px var(--gutter); }
  .nav-links { display: none; }
  .nav-meta { display: none; }
  .dock-wrap { display: flex; }
  /* keep page content clear of the dock */
  body { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  .page-head {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 36px 0 40px;
  }
  .tick { width: 10px; height: 10px; }

  /* Footer collapses */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-baseline {
    flex-direction: column;
    gap: 8px;
    text-align: left;
    align-items: flex-start;
  }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Touch targets: 44px minimum on small / coarse-pointer screens */
@media (max-width: 880px), (pointer: coarse) {
  .brand::before { display: none; }
  .brand { min-height: 44px; }
  .footer-col { gap: 0; }
  .footer-label { margin-bottom: 6px; }
  .footer-link, .read-more, .doc-back, .back-link, .contact-link, .book-cta {
    display: inline-flex; align-items: center; min-height: 44px;
  }
  /* body-prefixed so page-level button rules (min-height: 40px etc.) can't undercut it */
  body .type-tab, body .filter-pill, body .art-btn, body .btn, body .pos-node { min-height: 44px; }
  input[type="range"] { height: 44px !important; }
  /* No double-tap-zoom wait on controls */
  a, button, input, select, textarea, label, summary, [role="button"] { touch-action: manipulation; }
}

/* Phones: fixed-attachment backgrounds repaint on every scroll frame (and iOS
   ignores them). Let the page gradient scroll with the content instead. */
@media (max-width: 880px), (pointer: coarse) {
  body { background-attachment: scroll; }
}

/* Reduced motion: stop ambient loops, keep every state change (colour, border, opacity) */
@media (prefers-reduced-motion: reduce) {
  .status-dot, .chip.live i, .warmth-bg { animation: none !important; }
  .status-dot, .chip.live i { opacity: 1; }
  .sys-card:hover, .practice-col:hover, .work-card:hover, .btn-primary:hover { transform: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   Card hover lift (transform added; transition extended in page files)
   ========================================================= */
.practice-col {
  transition:
    background  200ms var(--ease-spatial),
    transform   300ms var(--ease-spatial),
    box-shadow  300ms var(--ease-spatial);
}
/* Lifts only where hover is real: on touch, :hover sticks after a tap and
   leaves a card floating. Touch gets a brief press state instead. */
@media (hover: hover) and (pointer: fine) {
  .sys-card:hover {
    transform: translateY(-2px);
    box-shadow:
      0 0 0 1px rgba(var(--violet-rgb), 0.12),
      0 8px 24px var(--color-violet-glow),
      0 2px 8px rgba(var(--violet-deep-rgb), 0.12);
  }
  .practice-col:hover {
    background: #17171A;
    transform: translateY(-2px);
    box-shadow:
      0 0 0 1px var(--color-violet-border),
      0 8px 24px var(--color-violet-glow);
  }
  .work-card:hover {
    transform: translateY(-2px);
    box-shadow:
      0 0 0 1px rgba(var(--violet-rgb), 0.12),
      0 8px 24px var(--color-violet-glow),
      0 2px 8px rgba(var(--violet-deep-rgb), 0.12);
  }
}
@media (hover: none) {
  .sys-card:active, .practice-col:active, .work-card:active,
  .research-list li[data-href]:active { background: #17171A; }
}

/* =========================================================
   Research rows — left accent bar on hover
   ========================================================= */
.research-list li {
  position: relative;
}
.research-list li::before {
  content: '';
  position: absolute;
  left: -1px; top: 0; bottom: 0;
  width: 2px;
  background: var(--color-violet);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 280ms var(--ease-spatial);
}
.research-list li:hover::before,
.research-list li:active::before {
  transform: scaleY(1);
}

/* =========================================================
   Respond — "Was this useful?" + private message (respond.js)
   ========================================================= */

.respond {
  margin: 72px 0 8px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border-soft);
}
.respond-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 18px;
}
.respond-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.respond-useful {
  display: inline-flex; align-items: center; gap: 0;
  min-height: 44px; padding: 0 18px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  transition: border-color 150ms var(--ease-spatial), background 150ms var(--ease-spatial), color 150ms var(--ease-spatial);
}
.respond-useful:hover { border-color: rgba(255, 255, 255, 0.45); }
.respond-useful[aria-pressed="true"] {
  background: var(--color-violet-soft);
  border-color: var(--color-violet-border);
  color: var(--color-violet-text);
  cursor: default;
}
.respond-useful:disabled { opacity: 0.7; }
.respond-count { margin-left: 0.6em; font-variant-numeric: tabular-nums; }

.respond-status {
  min-height: 1.4em;
  font-family: var(--font-mono);
  font-size: 12px; line-height: 1.5; letter-spacing: 0.02em;
  color: var(--color-text-secondary);
}

.respond-message { margin-top: 28px; }
.respond-message summary {
  display: inline-flex; align-items: center;
  min-height: 44px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color 150ms var(--ease-spatial);
}
.respond-message summary:hover { color: #fff; }
.respond-message[open] summary { color: #fff; }

.respond-form { display: grid; gap: 16px; max-width: 56ch; padding-top: 12px; }
.respond-field { display: grid; gap: 6px; }
.respond-label {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}
.respond-form input[type="text"],
.respond-form input[type="email"],
.respond-form textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.5;
  color: #fff;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  transition: border-color 150ms var(--ease-spatial);
}
.respond-form textarea { resize: vertical; }
.respond-form input:focus,
.respond-form textarea:focus { border-color: rgba(255, 255, 255, 0.55); }

.respond-note {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.02em;
  color: var(--color-text-secondary);
}
.respond-send {
  justify-self: start;
  min-height: 44px; padding: 0 22px;
  font-family: var(--font-sans);
  font-size: 14px; font-weight: 500;
  color: #000; background: #fff;
  border: 1px solid transparent; border-radius: 999px;
  transition: opacity 150ms var(--ease-spatial);
}
.respond-send:hover { opacity: 0.9; }
.respond-send:disabled { opacity: 0.5; cursor: default; }

/* Honeypot: off-screen, not display:none (some bots skip display:none fields) */
.respond-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .respond-useful, .respond-message summary, .respond-form input,
  .respond-form textarea, .respond-send { transition: none; }
}