/* Hearten — the landing page.
   The page is the object it is selling: paper for the chapters that happen on
   paper, cloth for the ones that happen on the cover, a running head and a
   folio on every chapter, gilt hairlines, and one live book to turn. Every
   colour is the app's own token (design/tokens/colors.css via
   lib/theme/tokens.dart, including the accessibility overrides the app ships
   over the design board); the two faces are the two the app bundles.
   Hearten is one light theme by design: there is no dark mode to answer, so
   the page paints its own ground and commits to morning light. */

:root {
  color-scheme: light;

  --paper-0: #fdfaf2;
  --paper-1: #fbf7ed;
  --paper-2: #f6efdf;
  --paper-3: #efe5cf;
  --paper-edge: #d9cdaf;

  --ink-1: #43392b;
  --ink-2: #55482f;
  --ink-3: #6d5c44;
  --ink-muted: #74654c;   /* the app's A11Y override for metadata ink */
  --ink-faint: #b3a488;

  --clay: #8a5637;        /* the app's label ink */
  --clay-soft: #ab7a55;
  --clay-deep: #7a4a2e;
  --sage-ink: #5c6b50;
  --gilt: #c9a274;
  --gold: #b98a4e;
  --cream: #f9f4e4;
  --cream-warm: #fcf7eb;

  --hairline: rgba(105, 86, 58, .16);
  --hairline-strong: rgba(105, 86, 58, .28);

  --laid: repeating-linear-gradient(0deg, rgba(122,94,52,.024) 0px, rgba(122,94,52,.024) 1px, transparent 1px, transparent 4px);
  --weave: repeating-linear-gradient(45deg, rgba(255,255,255,.05) 0px, rgba(255,255,255,.05) 1px, transparent 1px, transparent 3px),
           repeating-linear-gradient(-45deg, rgba(60,70,50,.05) 0px, rgba(60,70,50,.05) 1px, transparent 1px, transparent 3px);

  --display: 'Cormorant Garamond', 'Noto Serif JP', 'Noto Serif KR', Georgia, 'Times New Roman', serif;
  --body: 'EB Garamond', 'Noto Serif JP', 'Noto Serif KR', Georgia, 'Times New Roman', serif;
  --ui: -apple-system, 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;

  --measure: 1216px;
  --gutter: clamp(20px, 5vw, 56px);

  /* Set per band; every rule below reads these, never a literal. */
  --band-ink: var(--ink-1);
  --band-soft: var(--ink-muted);
  --band-head: var(--clay);
  --band-rule: var(--gilt);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
/* ── the script rules, from lib/l10n/script_rules.dart ───────────────────── */
/* CJK takes no positive letter-spacing, opens its line boxes, and has no
   drop cap to give: an initial in Japanese or Korean is a mistake, not an
   ornament. The tracked labels keep their case; only the tracking goes. */
[data-track='cjk'] .nav__mark,
[data-track='cjk'] .runhead,
[data-track='cjk'] .folio,
[data-track='cjk'] .nav__links a.nav__cta,
[data-track='cjk'] .lang-toggle__btn { letter-spacing: 0; text-indent: 0; }
[data-track='cjk'] h1 { line-height: 1.24; }
[data-track='cjk'] h2 { line-height: 1.28; }
[data-track='cjk'] .lead,
[data-track='cjk'] .body-copy,
[data-track='cjk'] .faq__a,
[data-track='cjk'] .doc p { line-height: 1.9; }
[data-track='cjk'] .hl-accent { font-style: normal; }
[data-track='cjk'] .body-copy--drop::first-letter {
  float: none;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  margin: 0;
  color: inherit;
}

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

body {
  margin: 0;
  background: var(--paper-1);
  color: var(--ink-1);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }
a { color: inherit; }

::selection { background: rgba(201, 162, 116, .35); }

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

.skip {
  position: absolute;
  inset-inline-start: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 18px;
  background: var(--paper-0);
  color: var(--ink-1);
}
.skip:focus { inset-inline-start: 12px; top: 12px; }

/* ── the running head at the top of the page ─────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px var(--gutter);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.nav.scrolled {
  background: rgba(251, 247, 237, .94);
  border-bottom-color: var(--hairline);
  box-shadow: 0 6px 22px rgba(105, 86, 58, .07);
}
.nav__mark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: .4em;
  text-indent: .4em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  white-space: nowrap;
}
.nav__links {
  display: flex;
  gap: 26px;
  margin-inline-start: auto;
  align-items: center;
}
.nav__links a {
  font-size: 15.5px;
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.nav__links a:hover { border-bottom-color: var(--gilt); color: var(--ink-1); }
.nav__links a.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--body);
  font-size: 15px;
  line-height: 1;
  letter-spacing: .1em;
  /* The tracked label is optically centred the way the app's caps are: the
     trailing space of the last letter is paid back as an indent. */
  text-indent: .1em;
  padding: 12px 22px 12px 22px;
  border-radius: 999px;
  background: linear-gradient(120deg, #9c5f3e, #8a5637);
  color: #fdf9ee;
  text-decoration: none;
  border-bottom: 0;
  box-shadow: 0 8px 20px rgba(138, 90, 50, .28);
  white-space: nowrap;
}
.nav__links a.nav__cta:hover { filter: brightness(1.06); color: #fdf9ee; border-bottom-color: transparent; }
@media (max-width: 780px) { .nav__links a:not(.nav__cta) { display: none; } }

/* ── bands: paper chapters and cloth chapters ────────────────────────────── */
.band {
  position: relative;
  padding: clamp(64px, 9vw, 128px) var(--gutter);
  overflow: hidden;
  color: var(--band-ink);
}
.band::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.band--paper {
  background: linear-gradient(178deg, #fbf7ed 0%, #f6efdf 46%, #efe5cf 100%);
}
.band--paper::before { background: var(--laid); }
.band--pale { background: linear-gradient(178deg, #fdfaf2 0%, #fbf7ed 60%, #f6efdf 100%); }
.band--pale::before { background: var(--laid); }

.band--cloth {
  --band-ink: var(--cream);
  --band-soft: rgba(249, 244, 228, .82);
  --band-head: rgba(249, 244, 228, .78);
  --band-rule: rgba(249, 244, 228, .5);
}
.band--cloth::before { background: var(--weave); }
.band--night { background: linear-gradient(165deg, #58718c 0%, #48607a 52%, #3a4f66 100%); }
.band--fig { background: linear-gradient(165deg, #7c6383 0%, #6b536f 52%, #5a4560 100%); }
.band--sage { background: linear-gradient(165deg, #748367 0%, #66755a 52%, #5c6b50 100%); }
.band--clay { background: linear-gradient(165deg, #9c5f3e 0%, #8a5637 52%, #7a4a2e 100%); }

/* The app ground's own light: the 1a corner blooms on paper, the 7a warm
   crown on cloth. */
.bloom { position: absolute; border-radius: 999px; pointer-events: none; }
.bloom--peach { top: -300px; left: -200px; width: 900px; height: 900px; background: radial-gradient(circle, rgba(226,196,153,.3), transparent 65%); }
.bloom--sage { top: 60px; right: -280px; width: 820px; height: 820px; background: radial-gradient(circle, rgba(164,181,165,.24), transparent 65%); }
.bloom--crown { top: -420px; left: 50%; transform: translateX(-50%); width: 1400px; height: 1400px; background: radial-gradient(circle, rgba(255,236,200,.2), transparent 62%); }

.inner { position: relative; max-width: var(--measure); margin: 0 auto; }

/* ── chapter heads: the folio, the running head, the gilt rule ───────────── */
.chapter-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: clamp(28px, 4vw, 46px);
}
.folio {
  font-family: var(--body);
  font-size: 13px;
  letter-spacing: .18em;
  text-indent: .18em;
  color: var(--band-head);
  font-variant-numeric: oldstyle-nums;
  white-space: nowrap;
}
.runhead {
  font-family: var(--body);
  font-size: 12px;
  letter-spacing: .3em;
  text-indent: .3em;
  text-transform: uppercase;
  color: var(--band-head);
  white-space: nowrap;
}
.chapter-head::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--band-rule), transparent 82%);
  opacity: .8;
}

/* ── type ────────────────────────────────────────────────────────────────── */
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--band-ink);
  text-wrap: balance;
}
h1 { font-size: clamp(3.1rem, 7.4vw, 5.5rem); line-height: 1.0; }
h2 { font-size: clamp(2.35rem, 4.6vw, 3.5rem); line-height: 1.04; }
h3 { font-size: 1.55rem; line-height: 1.2; font-weight: 500; }
.hl { display: block; }
.hl-accent {
  position: relative;
  display: inline-block;
  font-style: italic;
  font-weight: 500;
}
/* The accent device the store deck uses: the page's own gilt rule, a hairline
   that fades at both ends, under the word spoken softly. */
.hl-accent::after {
  content: '';
  position: absolute;
  left: .04em;
  right: .04em;
  bottom: -.02em;
  height: .045em;
  border-radius: .02em;
  background: linear-gradient(90deg, transparent, var(--band-rule) 18%, var(--band-rule) 82%, transparent);
  opacity: .9;
}
:lang(ja) .hl-accent, :lang(ko) .hl-accent, :lang(zh) .hl-accent { font-style: normal; }

.lead {
  font-size: clamp(1.16rem, 1.7vw, 1.34rem);
  line-height: 1.62;
  color: var(--band-ink);
  max-width: 34em;
  margin: 22px 0 0;
}
.body-copy {
  font-size: 1.06rem;
  line-height: 1.72;
  color: var(--band-soft);
  max-width: 36em;
  margin: 18px 0 0;
}
.body-copy--drop::first-letter {
  float: left;
  font-family: var(--display);
  font-weight: 600;
  font-size: 3.6em;
  line-height: .8;
  margin: .06em .1em 0 0;
  color: var(--clay);
}
.note {
  font-family: var(--display);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--band-soft);
  margin: 18px 0 0;
}

/* ── the spread: a text column and a live column ─────────────────────────── */
.spread {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  gap: clamp(32px, 5vw, 74px);
  align-items: center;
}
.spread--wide { grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); }
.spread--narrow { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
.spread__art { min-width: 0; }
.spread--top { align-items: start; }
.spread--flip .spread__words { order: 2; }
.spread--flip .spread__art { order: 1; }
@media (max-width: 900px) {
  .spread, .spread--wide, .spread--narrow { grid-template-columns: minmax(0, 1fr); }
  .spread--flip .spread__words, .spread--flip .spread__art { order: initial; }
}

/* ── the hero ────────────────────────────────────────────────────────────── */
.hero { padding-top: clamp(104px, 13vw, 168px); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
  gap: clamp(30px, 4.5vw, 68px);
  align-items: center;
}
.hero__words { display: flex; flex-direction: column; min-width: 0; }
.hero__badges { margin-top: 32px; }
.hero__copy { margin-top: 26px; }
/* On a phone the order is promise, then proof, then the way to get it: the
   words wrapper dissolves so the book can sit between the sub and the badges. */
@media (max-width: 900px) {
  .hero__grid { display: flex; flex-direction: column; align-items: stretch; }
  .hero__words { display: contents; }
  .hero__title { order: 1; }
  .hero__sub { order: 2; }
  .hero__book { order: 3; margin-top: 26px; }
  .hero__badges { order: 4; }
  .hero__copy { order: 5; }
}

.badges { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.store-badge { display: inline-flex; text-decoration: none; }
.store-badge img { display: block; width: auto; }
.store-badge:hover { filter: brightness(1.04); }
.free-line {
  font-size: 14.5px;
  color: var(--band-soft);
  margin: 14px 0 0;
}

/* ── live surfaces ───────────────────────────────────────────────────────── */
[data-live] { position: relative; }
/* On a phone the hero box runs the full width of the screen so the open
   cover leaves at the screen's own edge; on a wide screen the whole object
   fits and nothing is cropped at all. */
.live-book { width: 100%; max-width: 470px; aspect-ratio: 384 / 563; margin-inline: auto; }
@media (min-width: 901px) { .live-book { max-width: 100%; aspect-ratio: 719 / 594; } }
.live-phone { width: 100%; max-width: 430px; aspect-ratio: 558 / 1074; margin-inline: auto; }
.live-scene { width: 100%; max-width: 640px; aspect-ratio: 718 / 1074; margin-inline: auto; }
@media (max-width: 519px) { .live-scene { max-width: 430px; aspect-ratio: 558 / 1074; } }
.live-colophon { width: 100%; max-width: 324px; aspect-ratio: 324 / 496; margin-inline: auto; }
.live-cards { display: block; max-width: 430px; }
/* The readings live on paper in the app, so they keep their paper here
   rather than borrowing the cloth behind them. */
.paper-panel {
  background: linear-gradient(178deg, #fbf7ed 0%, #f5eedd 60%, #efe5cf 100%);
  border-radius: 18px;
  padding: 22px 22px 8px;
  box-shadow: 0 16px 40px rgba(30, 40, 25, .22);
  max-width: 430px;
  margin-top: 28px;
}
.paper-panel .live-cards { max-width: none; }


/* ── the shelf ───────────────────────────────────────────────────────────── */
.shelf { display: block; }

/* ── chips (the trust chapter) ───────────────────────────────────────────── */
.chips { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(252, 247, 235, .94);
  color: var(--sage-ink);
  font-size: 15.5px;
  box-shadow: 0 10px 24px rgba(40, 50, 30, .18);
  white-space: nowrap;
}

/* ── the colophon and the close ──────────────────────────────────────────── */
.colophon { text-align: center; }
.colophon__quote {
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.32;
  color: var(--ink-1);
  max-width: 22ch;
  margin: 0 auto;
  text-wrap: pretty;
}
.ornament { display: flex; justify-content: center; margin: 26px 0; opacity: .75; }
.close-line {
  font-size: 1.16rem;
  color: var(--ink-muted);
  margin: 0 auto;
  max-width: 34em;
}
.colophon .badges { justify-content: center; margin-top: 30px; }

.contact {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.contact__btn {
  font-family: var(--body);
  font-size: 1.02rem;
  letter-spacing: .02em;
  color: var(--ink-2);
  background: rgba(253, 250, 242, .7);
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  padding: 11px 24px;
  cursor: pointer;
}
.contact__btn:hover { background: var(--paper-0); border-color: var(--clay-soft); }

.snackbar {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  z-index: 300;
  padding: 11px 22px;
  border-radius: 999px;
  background: rgba(69, 59, 45, .94);
  color: #f7f1e2;
  font-size: 15px;
  box-shadow: 0 10px 30px rgba(69, 59, 45, .34);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.snackbar--show { opacity: 1; transform: translate(-50%, 0); }

/* ── the footer ──────────────────────────────────────────────────────────── */
.foot {
  padding: 44px var(--gutter) 54px;
  background: var(--paper-3);
  border-top: 1px solid var(--hairline);
}
.foot__inner {
  max-width: var(--measure);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  font-size: 15px;
  color: var(--ink-3);
}
.foot a { color: var(--ink-3); text-decoration: none; border-bottom: 1px solid var(--hairline-strong); padding-bottom: 1px; }
.foot a:hover { color: var(--ink-1); border-bottom-color: var(--clay-soft); }
.foot__mark { font-family: var(--display); font-style: italic; font-size: 1rem; color: var(--ink-muted); }
.foot__end { margin-inline-start: auto; font-size: 13.5px; color: var(--ink-muted); }
/* The language switcher: one real link per locale, each set in its own
   language. Deliberately NOT .lang-toggle__btn — that class belongs to
   behavior.js's bilingual toggle, which has no business on a page whose
   language is fixed at build time. */
.langs { display: flex; flex-wrap: wrap; gap: 6px 10px; }
.langs__link {
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.langs__link:hover { color: var(--ink-1); border-bottom-color: var(--clay-soft); }
.langs__link[aria-current='page'] { color: var(--ink-1); border-bottom-color: var(--clay-soft); }

/* ── the support page ────────────────────────────────────────────────────── */
.doc { max-width: 46em; margin: 0 auto; }
.doc h2 { margin-top: 46px; font-size: clamp(1.6rem, 3vw, 2.1rem); }
.doc p { color: var(--ink-2); }
.faq { margin-top: 34px; }
.faq__item { padding: 26px 0; border-top: 1px solid var(--hairline); }
.faq__q { font-family: var(--display); font-size: 1.5rem; font-weight: 500; line-height: 1.25; color: var(--ink-1); margin: 0; }
.faq__a { margin: 10px 0 0; color: var(--ink-2); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}