/* HaptiBraille website
   Palette roles: amber = a raised dot / a tap (never decoration), tide = vibration ripples. */

:root {
  --ink: #0e1626;
  --ink-2: #142038;
  --ink-3: #1b2a49;
  --line: #2b3a5c;
  --bone: #f1ece2;
  --mist: #aab4c8;
  --amber: #ffc940;
  --amber-ink: #1a1405;
  --tide: #6fd6c6;

  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --measure: 66ch;
  --radius: 14px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--body);
  font-size: 1.125rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--amber);
  color: var(--amber-ink);
  font-weight: 700;
  border-radius: 10px;
  text-decoration: none;
}
.skip:focus { top: 12px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Background dot field + cursor ---------- */

#field {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.cursor {
  position: fixed;
  left: 0; top: 0;
  z-index: 90;
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  border: 1.5px solid rgba(111, 214, 198, 0.7);
  border-radius: 50%;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(2, 5px);
  grid-template-rows: repeat(3, 5px);
  gap: 3px;
  place-content: center;
  transition: width .25s var(--ease), height .25s var(--ease), margin .25s var(--ease),
              border-color .25s var(--ease), background-color .25s var(--ease), opacity .3s;
  opacity: 0;
}
.cursor i {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--amber);
  transform: scale(0);
  transition: transform .2s var(--ease);
}
.cursor.is-visible { opacity: 1; }
.cursor.is-active {
  width: 50px; height: 50px; margin: -25px 0 0 -25px;
  border-color: var(--amber);
  background: rgba(255, 201, 64, 0.08);
}
.cursor.is-active i { transform: scale(1); }
.cursor.is-active i:nth-child(1) { transition-delay: 0s; }
.cursor.is-active i:nth-child(3) { transition-delay: .04s; }
.cursor.is-active i:nth-child(5) { transition-delay: .08s; }
.cursor.is-active i:nth-child(2) { transition-delay: .12s; }
.cursor.is-active i:nth-child(4) { transition-delay: .16s; }
.cursor.is-active i:nth-child(6) { transition-delay: .2s; }
.cursor.is-down { width: 24px; height: 24px; margin: -12px 0 0 -12px; }

@media (pointer: coarse), (prefers-reduced-motion: reduce) {
  .cursor { display: none; }
}

/* ---------- Layout ---------- */

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

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 22, 38, 0.92);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}
.logo .cell { --dot: 6px; --gap: 3px; }

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.site-nav a {
  padding: 10px 14px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--mist);
  font-weight: 700;
  font-size: 1rem;
  transition: color .2s, background-color .2s;
}
.site-nav a:hover { color: var(--bone); background: var(--ink-2); }
.site-nav a[aria-current="page"] { color: var(--bone); }

.site-header .btn { margin-left: 8px; }

@media (max-width: 760px) {
  .site-nav { display: none; }
  .site-header .btn { margin-left: auto; }
}
@media (max-width: 420px) {
  .hide-sm { display: none; }
  .logo { font-size: 1.15rem; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 20px;
  border: 0;
  border-radius: 12px;
  font: 700 1rem/1.2 var(--body);
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s, box-shadow .25s var(--ease);
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn svg { width: 20px; height: 20px; flex: none; }

.btn-amber {
  background: var(--amber);
  color: var(--amber-ink);
}
.btn-amber:hover {
  box-shadow: 0 0 0 6px rgba(255, 201, 64, 0.16);
  transform: translateY(-1px);
}

.btn-quiet {
  background: transparent;
  color: var(--bone);
  box-shadow: inset 0 0 0 1.5px var(--line);
}
.btn-quiet:hover { box-shadow: inset 0 0 0 1.5px var(--mist); }

.btn-large {
  min-height: 64px;
  padding: 14px 26px;
  font-size: 1.15rem;
  border-radius: 16px;
}
.btn-large .btn-sub {
  display: block;
  font-weight: 400;
  font-size: .85rem;
  opacity: .75;
}

/* ---------- Braille cells (decorative, built by JS from data-cell) ---------- */

.cell {
  --dot: 9px;
  --gap: 5px;
  display: inline-grid;
  grid-template-columns: repeat(2, var(--dot));
  grid-auto-flow: column;
  grid-template-rows: repeat(3, var(--dot));
  gap: var(--gap);
  flex: none;
}
.cell i {
  width: var(--dot);
  height: var(--dot);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1.5px var(--line);
  transition: background-color .18s, box-shadow .18s, transform .18s var(--ease);
}
.cell i.on { background: var(--amber); box-shadow: none; }
.cell i.hit {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 201, 64, .25), 0 0 18px rgba(255, 201, 64, .6);
  transform: scale(1.25);
}
.cell-pair { display: inline-flex; gap: calc(var(--dot) * 1.3); }

/* ---------- Type ---------- */

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(2.6rem, 6.4vw, 5rem); line-height: 1.02; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.1; }
h3 { font-size: 1.35rem; line-height: 1.25; letter-spacing: -0.01em; }

p { margin: 0 0 1em; max-width: var(--measure); }

.lead {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.5;
  color: var(--bone);
  max-width: 34em;
}
.muted { color: var(--mist); }

strong { font-weight: 700; }

/* Link with a dotted underline that fills in on hover */
.link {
  color: var(--bone);
  text-decoration: none;
  background-image: radial-gradient(circle, var(--mist) 1.2px, transparent 1.6px);
  background-size: 7px 4px;
  background-repeat: repeat-x;
  background-position: 0 100%;
  padding-bottom: 3px;
  transition: background-image .2s, color .2s;
}
.link:hover {
  color: var(--amber);
  background-image: radial-gradient(circle, var(--amber) 1.6px, transparent 2px);
}

/* ---------- Landing hero ---------- */

.hero { padding-block: clamp(48px, 9vw, 112px) clamp(56px, 8vw, 96px); }
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.platform-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 24px;
  max-width: 30em;
  color: var(--mist);
  font-size: 1rem;
}
.platform-note svg { width: 22px; height: 22px; flex: none; margin-top: 2px; color: var(--tide); }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
}

/* ---------- The rhythm instrument ---------- */

.instrument {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-2);
  border-radius: 28px;
  box-shadow: inset 0 0 0 1px var(--line);
}

.instrument-stage {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
  margin-bottom: 24px;
}
.instrument-stage .cell { --dot: clamp(26px, 4.4vw, 38px); --gap: clamp(10px, 1.8vw, 16px); }

.instrument-readout {
  font-family: var(--display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.02em;
  word-break: break-all;
  min-height: 1.1em;
}
.instrument-readout span { color: var(--mist); transition: color .15s; }
.instrument-readout span.done { color: var(--bone); }
.instrument-readout span.now { color: var(--amber); }
.instrument-dots { margin-top: 8px; color: var(--mist); font-size: 1rem; }

.strip {
  position: relative;
  display: flex;
  height: 44px;
  margin-bottom: 8px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}
.strip b {
  flex: none;
  height: 100%;
}
.strip b.tap { background: var(--amber); }
.strip b.tick { background: rgba(255, 201, 64, .45); }
.strip b.gap { background: transparent; }
.strip b.word { background: repeating-linear-gradient(90deg, transparent 0 6px, rgba(170, 180, 200, .08) 6px 7px); }
.strip-head {
  position: absolute;
  top: -4px; bottom: -4px;
  width: 2px;
  left: 0;
  background: var(--tide);
  box-shadow: 0 0 12px var(--tide);
  opacity: 0;
}
.strip-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: .95rem;
  color: var(--mist);
}
.strip-legend li { display: inline-flex; align-items: center; gap: 8px; }
.strip-legend i { width: 18px; height: 10px; border-radius: 3px; background: var(--amber); }
.strip-legend i.k { background: rgba(255, 201, 64, .45); }
.strip-legend i.s { box-shadow: inset 0 0 0 1px var(--line); background: transparent; }

.instrument-controls {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}
.instrument-controls label { grid-column: 1 / -1; font-weight: 700; font-size: 1rem; }
.instrument input[type="text"] {
  min-height: 56px;
  width: 100%;
  padding: 12px 16px;
  border: 0;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bone);
  font: 700 1.4rem var(--display);
  letter-spacing: .04em;
  box-shadow: inset 0 0 0 1.5px var(--line);
}
.instrument input[type="text"]:focus { outline: none; box-shadow: inset 0 0 0 2.5px var(--amber); }
.instrument .btn { min-height: 56px; }

.speed {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border: 0;
  margin: 4px 0 0;
  padding: 0;
}
.speed legend { float: left; margin-right: 6px; padding: 8px 0; color: var(--mist); font-size: .95rem; }
.speed label { cursor: pointer; }
.speed input { position: absolute; opacity: 0; pointer-events: none; }
.speed span {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 700;
  color: var(--mist);
  box-shadow: inset 0 0 0 1.5px var(--line);
  transition: color .2s, background-color .2s, box-shadow .2s;
}
.speed input:checked + span { background: var(--bone); color: var(--ink); box-shadow: none; }
.speed input:focus-visible + span { outline: 3px solid var(--amber); outline-offset: 2px; }

.instrument-status {
  margin: 14px 0 0;
  min-height: 1.6em;
  font-size: .98rem;
  color: var(--mist);
}

/* ---------- Sections ---------- */

.section { padding-block: clamp(56px, 9vw, 120px); }
.section + .section { padding-top: 0; }
.section-head { max-width: 40em; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head h2 { margin-bottom: 14px; }

/* The eight chapters (a real sequence, numbered in Braille) */
.chapters { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.chapters li { border-bottom: 1px solid var(--line); }
.chapters a {
  display: grid;
  grid-template-columns: 64px minmax(0, 15rem) minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  padding: 26px 8px;
  text-decoration: none;
  transition: background-color .25s, padding .3s var(--ease);
}
.chapters a:hover, .chapters a:focus-visible { background: var(--ink-2); padding-left: 20px; }
.chapters h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); }
.chapters p { margin: 0; color: var(--mist); }
.chapters .cell-pair .cell { --dot: 7px; --gap: 4px; }
.chapters a:hover .cell i.on, .chapters a:focus-visible .cell i.on { animation: tap .5s var(--ease) both; }
.chapters a .cell i.on:nth-child(2) { animation-delay: .06s; }
.chapters a .cell i.on:nth-child(3) { animation-delay: .12s; }
.chapters a .cell i.on:nth-child(4) { animation-delay: .18s; }
.chapters a .cell i.on:nth-child(5) { animation-delay: .24s; }
.chapters a .cell i.on:nth-child(6) { animation-delay: .3s; }

@keyframes tap {
  0% { transform: scale(1); }
  40% { transform: scale(1.5); box-shadow: 0 0 14px rgba(255, 201, 64, .7); }
  100% { transform: scale(1); }
}

@media (max-width: 700px) {
  .chapters a { grid-template-columns: 52px 1fr; }
  .chapters p { grid-column: 2; }
}

/* Install steps (a real sequence) */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
  counter-reset: step;
}
.steps li { counter-increment: step; padding-top: 22px; border-top: 2px solid var(--line); }
.steps li::before {
  content: counter(step);
  display: block;
  margin-bottom: 10px;
  font-family: var(--display);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--mist); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

.callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: clamp(24px, 4vw, 44px);
  border-radius: 28px;
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--line);
}
.callout h2 { margin-bottom: 10px; }
.callout p { margin: 0; color: var(--mist); }
@media (max-width: 760px) { .callout { grid-template-columns: 1fr; } }

/* ---------- Chapter pages ---------- */

.rail {
  border-bottom: 1px solid var(--line);
}
.rail ol {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
.rail a {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 10px 16px 0;
  text-decoration: none;
  color: var(--mist);
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.25;
  transition: color .2s;
}
.rail a::after {
  content: "";
  position: absolute;
  left: 0; right: 10px; bottom: -1px;
  height: 3px;
  border-radius: 3px;
  background: var(--line);
}
.rail a:hover { color: var(--bone); }
.rail a.is-past::after { background: rgba(255, 201, 64, .45); }
.rail a[aria-current="page"] { color: var(--bone); }
.rail a[aria-current="page"]::after {
  background: linear-gradient(90deg, var(--amber) var(--read, 0%), rgba(255, 201, 64, .25) var(--read, 0%));
}
.rail .cell-pair .cell { --dot: 5px; --gap: 3px; }
.rail-mobile { display: none; }

@media (max-width: 900px) {
  .rail ol { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  .rail a { font-size: 0; gap: 0; padding-right: 6px; }
  .rail a::after { right: 6px; }
  .rail-mobile {
    display: block;
    padding: 10px 0 12px;
    font-size: .95rem;
    color: var(--mist);
  }
  .rail-mobile strong { color: var(--bone); }
}

.page-head { padding-block: clamp(48px, 8vw, 96px) clamp(32px, 5vw, 56px); }
.page-head h1 { margin-bottom: 22px; max-width: 14em; }
.page-head .cell-pair { margin-bottom: 26px; }
.page-head .cell-pair .cell { --dot: 11px; --gap: 6px; }

.prose { padding-bottom: clamp(40px, 6vw, 72px); }
.prose h2 { margin: clamp(56px, 7vw, 88px) 0 18px; }
.prose h3 { margin: 32px 0 10px; }
.prose ul, .prose ol { padding-left: 1.3em; max-width: var(--measure); }
.prose li { margin-bottom: .5em; }
.prose li::marker { color: var(--amber); }

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  margin-top: 28px;
}
.split > div { padding-top: 20px; border-top: 2px solid var(--line); }
.split h3 { margin: 0 0 10px; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }

.figure {
  margin: 32px 0;
  padding: clamp(20px, 3vw, 32px);
  border-radius: 22px;
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--line);
}
.figure figcaption { margin-top: 16px; color: var(--mist); font-size: 1rem; max-width: var(--measure); }

/* "1 in 10" pictogram */
.ten { display: flex; flex-wrap: wrap; gap: clamp(14px, 2.5vw, 28px); }
.ten .cell { --dot: clamp(12px, 2vw, 18px); --gap: clamp(5px, .8vw, 8px); }
.ten .cell.lit i { background: var(--amber); box-shadow: none; }

/* Braille alphabet samples */
.samples { display: flex; flex-wrap: wrap; gap: 28px 40px; }
.samples figure { margin: 0; display: grid; justify-items: center; gap: 10px; }
.samples figcaption { font-family: var(--display); font-weight: 700; font-size: 1.4rem; }
.samples small { display: block; color: var(--mist); font-family: var(--body); font-weight: 400; font-size: .9rem; }
.samples .cell { --dot: 18px; --gap: 9px; }
.numbered-cell { position: relative; display: inline-grid; grid-template-columns: repeat(2, 44px); grid-template-rows: repeat(3, 44px); gap: 10px; }
.numbered-cell span {
  display: grid; place-items: center;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px var(--line);
  font-family: var(--display); font-weight: 700; color: var(--mist);
}

/* Timeline (inspiration) */
.timeline { list-style: none; margin: 32px 0 0; padding: 0; position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--line);
}
.timeline li { position: relative; padding: 0 0 40px 44px; max-width: calc(var(--measure) + 44px); }
.timeline li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: inset 0 0 0 2px var(--amber);
}
.timeline time {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--amber);
  line-height: 1.2;
}
.timeline h3 { margin: 4px 0 8px; }
.timeline p { color: var(--mist); }

/* Pipeline (how) */
.pipeline { list-style: none; margin: 28px 0 0; padding: 0; counter-reset: pipe; }
.pipeline li {
  counter-increment: pipe;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.pipeline li::before {
  content: counter(pipe);
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}
@media (max-width: 600px) { .pipeline li { grid-template-columns: 32px minmax(0, 1fr); gap: 12px; } }
.pipeline h3 { margin: 0 0 6px; }
.pipeline p { margin: 0; color: var(--mist); }
.pipeline code { font-size: .9em; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 24px 0; border-radius: 16px; box-shadow: inset 0 0 0 1px var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 1rem; }
th, td { text-align: left; padding: 14px 16px; vertical-align: top; border-bottom: 1px solid var(--line); }
th { font-family: var(--display); font-weight: 700; color: var(--bone); background: var(--ink-2); }
tr:last-child td { border-bottom: 0; }
td { color: var(--mist); }
td:first-child { color: var(--bone); font-weight: 700; }
tbody tr { transition: background-color .2s; }
tbody tr:hover { background: rgba(27, 42, 73, .6); }

/* Code */
code {
  font-family: var(--mono);
  font-size: .92em;
  padding: .1em .35em;
  border-radius: 6px;
  background: var(--ink-3);
  overflow-wrap: anywhere;
}
pre {
  margin: 20px 0;
  padding: 20px 22px;
  overflow-x: auto;
  border-radius: 16px;
  background: #0a1120;
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: .92rem;
  line-height: 1.6;
}
pre code { padding: 0; background: none; font-size: inherit; }
pre .c { color: #7f8aa3; }
pre .k { color: var(--tide); }
pre .s { color: var(--amber); }

/* Architecture layers */
.layers { display: grid; gap: 10px; margin: 28px 0; }
.layers div {
  display: grid;
  grid-template-columns: minmax(0, 13rem) minmax(0, 1fr);
  gap: 18px;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--line);
}
.layers div:nth-child(1) { margin-right: 0; }
.layers div:nth-child(2) { margin-inline: 3%; }
.layers div:nth-child(3) { margin-inline: 6%; box-shadow: inset 0 0 0 1.5px var(--amber); }
.layers div:nth-child(4) { margin-inline: 3%; }
.layers div:nth-child(5) { margin-right: 0; }
.layers strong { font-family: var(--display); font-size: 1.1rem; }
.layers span { color: var(--mist); font-size: 1rem; }
@media (max-width: 700px) {
  .layers div { grid-template-columns: 1fr; gap: 4px; margin-inline: 0 !important; }
}

/* Audience list */
.people { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 0; }
.people li {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.people h3 { margin: 0; }
.people p { margin: 0; color: var(--mist); }
@media (max-width: 760px) { .people li { grid-template-columns: 1fr; gap: 8px; } }

/* Feature rows (what) */
.features { display: grid; gap: 0; margin-top: 28px; }
.feature {
  display: grid;
  grid-template-columns: 56px minmax(0, 15rem) minmax(0, 1fr);
  gap: 22px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.feature svg { width: 40px; height: 40px; color: var(--amber); }
.feature h3 { margin: 4px 0 0; }
.feature p { margin: 0; color: var(--mist); }
@media (max-width: 760px) {
  .feature { grid-template-columns: 48px 1fr; }
  .feature p { grid-column: 2; }
}

/* Statement list (why) */
.statements { list-style: none; margin: 24px 0 0; padding: 0; }
.statements li { padding: 32px 0; border-top: 1px solid var(--line); }
.statements h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 10px; max-width: 22em; }
.statements p { color: var(--mist); margin: 0; }

/* Chapter pager */
.pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-block: 32px 72px;
  border-top: 1px solid var(--line);
}
.pager a {
  display: block;
  padding: 22px 24px;
  border-radius: 18px;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px var(--line);
  transition: background-color .25s, box-shadow .25s;
}
.pager a:hover { background: var(--ink-2); box-shadow: inset 0 0 0 1.5px var(--amber); }
.pager small { display: block; color: var(--mist); font-size: .95rem; margin-bottom: 4px; }
.pager strong { font-family: var(--display); font-size: clamp(1.25rem, 2.4vw, 1.7rem); }
.pager .next { text-align: right; grid-column: 2; }
@media (max-width: 600px) {
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; }
}

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 40px 56px;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 1rem;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
  justify-content: space-between;
}
.site-footer p { margin: 0; }

/* ---------- Page-load sequence (above the fold, never waits for scrolling) ---------- */

[data-load] { animation: rise .9s var(--ease) both; animation-delay: var(--d, 0s); }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } }

/* ---------- Scroll reveal ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--d, 0s);
}
.js [data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  [data-load] { animation: none; }
  .cell i, .btn, .chapters a { transition: none; }
  .chapters a:hover .cell i.on { animation: none; }
}

/* ---------- Team ---------- */

.team {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 32px);
}
.team img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: 50% 25%;
  border-radius: 24px;
  background: var(--ink-2);
  filter: grayscale(.35);
  transition: filter .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
}
.team li:hover img { filter: none; transform: translateY(-4px); box-shadow: 0 0 0 3px var(--amber); }
.team h3 { margin-top: 14px; font-size: 1.25rem; }
@media (max-width: 800px) { .team { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (prefers-reduced-motion: reduce) { .team img { transition: none; } .team li:hover img { transform: none; } }