/* LMN.MOVEMENT, one stylesheet for the whole site.
   Palette: chalk ground, iron ink, oxblood accent.
   Type: Archivo (structure) / Newsreader (prose) / IBM Plex Mono (labels). */

:root {
  --ground:      #E8E8E4;
  --ground-deep: #DEDFD9;
  --surface:     #F4F4F1;
  --ink:         #14171A;
  --ink-2:       #4A5158;
  --ink-3:       #767C82;
  --line:        #C8C9C3;
  --line-soft:   #D8D9D3;
  --accent:      #8C2F39;

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --prose:   "Newsreader", Georgia, "Times New Roman", serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --measure: 60ch;
  --gutter: clamp(20px, 5vw, 64px);
  --maxw: 1180px;
  --headh: 62px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:      #131517;
    --ground-deep: #0D0F11;
    --surface:     #1B1E21;
    --ink:         #E7E7E3;
    --ink-2:       #A2A8AE;
    --ink-3:       #7C838A;
    --line:        #2E3338;
    --line-soft:   #23272B;
    --accent:      #C9645A;
  }
}
:root[data-theme="dark"] {
  --ground:      #131517;
  --ground-deep: #0D0F11;
  --surface:     #1B1E21;
  --ink:         #E7E7E3;
  --ink-2:       #A2A8AE;
  --ink-3:       #7C838A;
  --line:        #2E3338;
  --line-soft:   #23272B;
  --accent:      #C9645A;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--prose);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

/* ---------- type roles ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0;
}

.lede { font-size: clamp(18px, 2vw, 21px); line-height: 1.55; color: var(--ink-2); max-width: var(--measure); }

p { max-width: var(--measure); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* unresolved content: prices, links and details not yet decided */
.slot {
  font-family: var(--mono);
  font-size: 0.86em;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px dashed currentColor;
  padding-bottom: 1px;
  white-space: nowrap;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 26px;
  background: var(--ink);
  color: var(--ground);
  border: 1px solid var(--ink);
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-sm { padding: 9px 17px; font-size: 11px; letter-spacing: 0.1em; }
.btn-lg { padding: 17px 34px; font-size: 13px; }

/* not yet purchasable. Looks like a button, does nothing, isn't focusable */
.btn-soon {
  background: transparent;
  color: var(--ink-3);
  border-color: var(--line);
  cursor: default;
  text-align: center;
}
.btn-soon:hover {
  background: transparent;
  color: var(--ink-3);
  border-color: var(--line);
}

/* ---------- floating masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ground);
  border-bottom: 1px solid var(--line);
}
.masthead .wrap { display: flex; align-items: center; gap: clamp(12px, 3vw, 36px); min-height: var(--headh); }

.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(13px, 1.5vw, 15px);
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark span { color: var(--accent); }

.masthead nav {
  display: flex;
  gap: clamp(12px, 2.2vw, 28px);
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.masthead nav a {
  text-decoration: none;
  color: var(--ink-2);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: color .16s ease, border-color .16s ease;
}
.masthead nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }
.masthead nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
.masthead .btn[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: #fff; }

@media (max-width: 560px) {
  .masthead .wrap { gap: 10px; padding-inline: 16px; }
  .masthead nav { gap: 12px; font-size: 10px; }
  .btn-sm { padding: 8px 12px; font-size: 10px; letter-spacing: 0.06em; }
}

[id] { scroll-margin-top: calc(var(--headh) + 18px); }

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

.hero { border-bottom: 1px solid var(--line); padding-block: clamp(44px, 6.5vw, 84px); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; align-items: start; } }

.hero .eyebrow { margin-bottom: clamp(16px, 2.2vw, 22px); }

/* the thesis, small, under the photographs it is about */
.hero-caption {
  font-family: var(--prose);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.5;
  color: var(--ink);
  margin: clamp(20px, 2.6vw, 26px) 0 0;
  max-width: 36ch;
  text-wrap: pretty;
}
.hero-caption em {
  font-style: italic;
  color: var(--accent);
}
.train-hero h1 em {
  font-family: var(--prose);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 30px; }

/* ---------- the photographs ---------- */

.compare { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(10px, 1.5vw, 18px); }
.shot { display: block; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background-color: var(--surface);
  border: 1px solid var(--line);
}
.shot .cap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.shot.after .cap { color: var(--accent); border-top-color: var(--accent); }

/* the four lines, now the page's opening statement */
.stanza {
  font-family: var(--prose);
  font-size: clamp(25px, 3.5vw, 42px);
  line-height: 1.28;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  max-width: none;
  text-wrap: pretty;
}
.stanza em {
  font-style: italic;
  color: var(--accent);
}

/* ---------- figures band ---------- */

.stats-band { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); margin-top: clamp(38px, 5vw, 62px); }
@media (max-width: 640px) {
  .stats-band { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-band .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
}
.stat { display: flex; flex-direction: column; gap: 5px; padding-block: 18px; padding-right: 16px; }
.stat dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.stat dd {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(17px, 1.85vw, 21px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  max-width: 15ch;
  text-wrap: balance;
}

/* ---------- sections ---------- */

section { border-bottom: 1px solid var(--line); }
.sec { padding-block: clamp(52px, 7.5vw, 92px); }

.sec-head { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: clamp(20px, 4vw, 48px); align-items: start; }
@media (max-width: 760px) { .sec-head { grid-template-columns: 1fr; gap: 14px; } }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.1; }
.sec-head .sec-body { display: grid; gap: 18px; }

/* ---------- the ladder ---------- */

.ladder-sec { background: var(--ground-deep); }
.ladder-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
@media (max-width: 860px) { .ladder-grid { grid-template-columns: 1fr; } }

.ladder-copy h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.08; margin-block: 14px 0; }
.ladder-copy p { margin-block: 20px 0; }
.ladder-note { color: var(--ink-3); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 22px; }

.rungs { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; counter-reset: rung; }
.rungs li {
  counter-increment: rung;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 18px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line);
  transition: border-left-color .16s ease, transform .16s ease;
}
.rungs li:hover { border-left-color: var(--accent); transform: translateX(3px); }
.rungs li::before {
  content: counter(rung, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-3);
  padding-top: 2px;
}
.rungs .rung-name { font-family: var(--display); font-weight: 700; font-size: 16px; letter-spacing: -0.01em; display: block; }
.rungs .rung-note { grid-column: 2; margin-top: 5px; font-size: 15px; line-height: 1.45; color: var(--ink-2); }

/* the stages widen as they go. This builds, it doesn't descend */
.rungs li:nth-child(1) { margin-right: 12%; }
.rungs li:nth-child(2) { margin-right: 8%; }
.rungs li:nth-child(3) { margin-right: 4%; }
.rungs li:last-child { margin-right: 0; border-left-color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  .rungs li, .btn, .masthead nav a { transition: none; }
  .rungs li:hover { transform: none; }
}

/* ---------- three rules ---------- */

.rules {
  list-style: none;
  margin: clamp(34px, 4.5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
@media (max-width: 780px) { .rules { grid-template-columns: 1fr; } }
.rules li { background: var(--ground); padding: clamp(22px, 3vw, 30px) clamp(20px, 2.4vw, 28px); display: grid; gap: 9px; align-content: start; }
.rules .rule-name { font-family: var(--display); font-weight: 700; font-size: 17px; letter-spacing: -0.01em; }
.rules p { margin: 0; color: var(--ink-2); font-size: 16px; max-width: 40ch; }

/* ---------- volumes ---------- */

.vols { margin-top: clamp(34px, 4.5vw, 48px); list-style: none; padding: 0; }
.vol {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) minmax(0, 1.15fr) 110px;
  gap: clamp(14px, 2.4vw, 32px);
  align-items: start;
  padding-block: 20px;
  border-top: 1px solid var(--line);
}
.vol:last-child { border-bottom: 1px solid var(--line); }

/* volumes are not a sequence, so they get a mark, not a number */
.vol::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  margin-top: 0.62em;
}
@media (max-width: 780px) {
  .vol { grid-template-columns: 26px minmax(0, 1fr); row-gap: 6px; }
  .vol .vol-desc, .vol .vol-count { grid-column: 2; }
  .vol .vol-count { text-align: left; }
}
.vol .vol-name { font-family: var(--display); font-weight: 700; font-size: clamp(19px, 2.1vw, 23px); letter-spacing: -0.02em; }
.vol .vol-desc { color: var(--ink-2); font-size: 16px; max-width: 46ch; }
.vol .vol-count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.vols-foot { margin-top: clamp(22px, 3vw, 32px); display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.vols-foot p { margin: 0; color: var(--ink-2); font-size: 16px; }

/* ---------- packages ---------- */

.packages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(34px, 4.5vw, 48px);
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 880px) { .packages { grid-template-columns: 1fr; } }
.packages-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 880px) { .packages-two { grid-template-columns: 1fr; } }

.pkg {
  background: var(--ground);
  padding: clamp(26px, 3.2vw, 36px);
  display: grid;
  gap: 14px;
  align-content: start;
  grid-template-rows: auto auto auto 1fr auto;
}
.pkg .pkg-kind { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.pkg h3 { font-size: clamp(21px, 2.3vw, 25px); line-height: 1.14; }
.pkg .pkg-price {
  font-family: var(--display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.pkg ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; font-size: 16px; color: var(--ink-2); }
.pkg ul li { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 10px; }
.pkg ul li::before { content: ""; width: 7px; height: 1px; background: var(--ink-3); margin-top: 0.72em; }
.pkg .btn { text-align: center; margin-top: 6px; }

.pkg.featured { background: var(--surface); border-left: 3px solid var(--accent); }
@media (max-width: 880px) { .pkg.featured { border-left: 0; border-top: 3px solid var(--accent); } }
.pkg.featured .pkg-kind { color: var(--accent); }

/* ---------- close band ---------- */

.close-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
@media (max-width: 860px) { .close-grid { grid-template-columns: 1fr; } }
.close h2 { font-size: clamp(28px, 4.2vw, 46px); line-height: 1.05; letter-spacing: -0.03em; margin-block: 14px 0; }

.terms { border-top: 2px solid var(--ink); display: flex; flex-direction: column; }
.term {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-block: 13px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.term span:first-child { color: var(--ink-3); text-transform: uppercase; }
.term span:last-child { text-align: right; }

/* ---------- train with me ---------- */

.train-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.58fr); gap: clamp(30px, 5vw, 64px); align-items: center; }
@media (max-width: 860px) {
  .train-hero { grid-template-columns: 1fr; align-items: start; }
  .train-portrait { max-width: 300px; }
}
/* This portrait is roughly 9:16 in a 3:4 frame, so cover() has a lot to
   discard. Bias it upward to keep the head in shot. */
.train-portrait .shot img { object-position: center 28%; }

.train-hero h1 {
  font-size: clamp(34px, 5.4vw, 62px);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-block: 16px 0;
}

.offer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(32px, 4.5vw, 46px);
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 720px) { .offer { grid-template-columns: 1fr; } }
.offer-item { background: var(--ground); padding: clamp(24px, 3vw, 34px); display: grid; gap: 10px; align-content: start; }
.offer-item .eyebrow { color: var(--accent); }
.offer-item h3 { font-size: 20px; line-height: 1.2; }
.offer-item p { margin: 0; color: var(--ink-2); font-size: 16px; max-width: 42ch; }

.steps { list-style: none; margin: clamp(32px, 4.5vw, 46px) 0 0; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 28px);
  padding-block: 22px;
  border-top: 1px solid var(--line);
  align-items: start;
}
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  padding-top: 5px;
}
.steps h3 { font-size: 18px; line-height: 1.25; margin-bottom: 7px; }
.steps p { margin: 0; color: var(--ink-2); font-size: 16px; }

.notfor { list-style: none; margin: clamp(24px, 3vw, 34px) 0 0; padding: 0; display: grid; gap: 13px; max-width: var(--measure); }
.notfor li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 12px; color: var(--ink-2); }
.notfor li::before { content: "\00d7"; font-family: var(--mono); color: var(--accent); line-height: 1.55; }

.booking {
  background: var(--ground-deep);
  border: 1px solid var(--line);
  padding: clamp(28px, 4vw, 46px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
  gap: clamp(28px, 4.5vw, 56px);
  align-items: start;
  margin-top: clamp(34px, 4.5vw, 48px);
}
@media (max-width: 820px) { .booking { grid-template-columns: 1fr; } }
.booking h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.08; margin-bottom: 16px; }
.booking p { color: var(--ink-2); }
.booking .hero-actions { margin-top: 26px; }

/* ---------- reader (preface, and later the chapters) ---------- */

.reader { padding-block: clamp(40px, 6vw, 76px); }
.reader-inner { max-width: 68ch; margin: 0 auto; }

.backlink {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-decoration: none;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.backlink:hover { color: var(--accent); }

.reader h1 { font-size: clamp(38px, 5.4vw, 60px); line-height: 1.02; font-weight: 800; letter-spacing: -0.035em; margin-block: 14px 0; }
.epigraph { font-size: clamp(19px, 2.1vw, 23px); font-style: italic; color: var(--accent); margin-block: 20px 0; max-width: none; }
.reader h2 {
  font-size: clamp(21px, 2.4vw, 27px);
  line-height: 1.15;
  margin-block: clamp(42px, 5vw, 58px) 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.reader p { max-width: none; margin-block: 0 1.15em; }
.reader p:last-child { margin-bottom: 0; }

.reader-figs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(10px, 1.5vw, 18px);
  margin-block: clamp(34px, 4.5vw, 48px);
  max-width: 520px;
}

.box {
  border: 1px solid var(--ink);
  background: var(--surface);
  padding: clamp(22px, 3.2vw, 32px);
  display: grid;
  gap: 12px;
  margin-block: clamp(34px, 4.5vw, 46px);
}
.box h3 { font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.box p { margin: 0; max-width: none; }

.reader-foot {
  margin-top: clamp(44px, 6vw, 68px);
  padding-top: clamp(26px, 3.4vw, 34px);
  border-top: 2px solid var(--ink);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.reader-foot p { margin: 0; color: var(--ink-2); font-size: 16px; max-width: 34ch; }

/* ---------- footer ---------- */

.site-foot {
  padding-block: 34px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}

/* ---------- modules page ---------- */

.modules-sec { padding-block: clamp(40px, 5.5vw, 72px); }
.modules-title {
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-block: 14px 0;
}
.modules-lede { margin-block: 20px 0; }

/* Borders live on the cells, not on a gap-coloured container, so the two
   empty slots in the last row stay empty instead of rendering as a block. */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin-top: clamp(34px, 4.5vw, 48px);
}
@media (max-width: 900px) { .modules-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .modules-grid { grid-template-columns: 1fr; } }

.module {
  background: var(--ground);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.module.is-open { grid-column: 1 / -1; background: var(--surface); }

.module-head {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  width: 100%;
  cursor: pointer;
  display: grid;
  gap: 9px;
  align-content: start;
  padding: clamp(22px, 2.6vw, 30px);
  transition: background .16s ease;
}
.module-head:hover { background: var(--surface); }
.module.is-open .module-head:hover { background: transparent; }
.module-head:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }

.module-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.module-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.module-toggle { position: relative; width: 13px; height: 13px; flex: none; }
.module-toggle::before,
.module-toggle::after {
  content: "";
  position: absolute;
  background: var(--ink-3);
  transition: transform .18s ease, background .16s ease;
}
.module-toggle::before { inset: 6px 0 6px 0; height: 1px; }
.module-toggle::after  { inset: 0 6px 0 6px; width: 1px; }
.module-head:hover .module-toggle::before,
.module-head:hover .module-toggle::after { background: var(--accent); }
.module.is-open .module-toggle::after { transform: scaleY(0); }
.module.is-open .module-toggle::before { background: var(--accent); }

.module-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(19px, 2vw, 22px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  transition: color .16s ease;
}
.module-head:hover .module-name { color: var(--accent); }
.module-sum { font-size: 16px; line-height: 1.45; color: var(--ink-2); }

.module-body { padding: 0 clamp(22px, 2.6vw, 30px) clamp(26px, 3vw, 34px); }
.module-body-inner {
  border-top: 1px solid var(--line);
  padding-top: clamp(22px, 2.6vw, 28px);
  display: grid;
  gap: clamp(20px, 2.6vw, 30px);
}
@media (min-width: 901px) {
  .module-body-inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
  .module-buy { grid-column: 1; }
}
.module-intro { margin: 0; color: var(--ink-2); max-width: 46ch; }
.module-empty { margin: 0; color: var(--ink-3); font-style: italic; }

.module-listlabel {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 12px;
}
.module-chapters { list-style: none; margin: 0; padding: 0; }
.module-chapters li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 14px;
  padding-block: 11px;
  border-top: 1px solid var(--line-soft);
}
.module-chapters li:first-child { border-top: 0; padding-top: 0; }
.ch-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}
.ch-name { font-family: var(--display); font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
.ch-desc { grid-column: 2; font-size: 15px; line-height: 1.45; color: var(--ink-2); }

.module-buy { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.module-price { font-family: var(--display); font-weight: 700; font-size: 18px; }