/* Pages publiques HaHa Chinese (grammaire, lectures, vocabulaire, traducteur). */
:root {
  --bg: #faf6ef; --bg-2: #f3ebdd; --card: #fffdf8; --text: #3a322e; --text-2: #7d7064;
  --sep: rgba(90, 70, 55, 0.14); --accent: #e07a5f; --accent-press: #c25e44;
  --amber: #e9b44c; --green: #7ca55f; --radius: 16px;
  --shadow: 0 1px 2px rgba(90,65,40,.05), 0 10px 26px rgba(120,90,55,.10);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #18130f; --bg-2: #201a14; --card: #241d17; --text: #f3eadf; --text-2: #b3a595;
    --sep: rgba(210,185,155,.16); --accent: #e88a70; --accent-press: #f0a189; --green: #8fb573;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 26px rgba(0,0,0,.35); }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.6;
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 18px; }
.site-head { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 0; border-bottom: 1px solid var(--sep); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 18px;
  color: var(--text); text-decoration: none; }
.brand span { font-size: 24px; }
.site-nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
.site-nav a { color: var(--text-2); text-decoration: none; font-weight: 600; }
.site-nav a:hover { color: var(--accent); }
.cta { display: inline-block; background: var(--accent); color: #fff !important; text-decoration: none;
  font-weight: 700; padding: 10px 16px; border-radius: 999px; white-space: nowrap; }
.cta:hover { background: var(--accent-press); }
.cta.big { padding: 14px 24px; font-size: 17px; }
main { padding: 22px 0 40px; }
h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 21px; margin: 30px 0 8px; }
h3 { font-size: 17px; margin: 22px 0 6px; }
.lead { font-size: 17px; color: var(--text-2); margin: 0 0 18px; }
.crumbs { font-size: 13px; color: var(--text-2); margin: 0 0 6px; }
.crumbs a { color: var(--text-2); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.chip { display: inline-block; font-size: 12.5px; font-weight: 700; padding: 3px 10px;
  border-radius: 999px; background: var(--bg-2); color: var(--text-2); margin-right: 6px; }
.chip.lvl { background: rgba(224,122,95,.14); color: var(--accent); }
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 20px; margin: 14px 0; }
.structure { display: inline-block; border: 1.5px dashed var(--accent); color: var(--accent);
  font-weight: 700; border-radius: 12px; padding: 6px 12px; margin: 6px 0 10px; }
.ex { margin: 12px 0; padding-left: 12px; border-left: 3px solid var(--amber); }
.zh { font-size: 23px; line-height: 2.1; }
.zh ruby { ruby-align: center; }
.zh rt { font-size: 11px; color: var(--text-2); font-weight: 500; letter-spacing: 0; }
.zh a { color: inherit; text-decoration: none; border-bottom: 1px dotted rgba(224,122,95,.55); }
.zh a:hover { color: var(--accent); }
.fr { color: var(--text-2); font-size: 15px; margin-top: 2px; }
.para { margin: 16px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.tile { display: block; background: var(--card); border-radius: 14px; padding: 14px 16px;
  text-decoration: none; color: var(--text); box-shadow: var(--shadow); }
.tile:hover { outline: 2px solid var(--accent); }
.tile b { display: block; font-size: 16px; }
.tile small { color: var(--text-2); }
.tile .zh { font-size: 18px; line-height: 1.4; }
.lvl-head { display: flex; align-items: baseline; gap: 10px; margin-top: 28px; }
.lvl-head h2 { margin: 0; }
.lvl-head small { color: var(--text-2); }
.word-hero { text-align: center; padding: 26px 10px 18px; }
.word-hero .hanzi { font-size: 72px; line-height: 1.1; font-weight: 500; }
.word-hero .py { font-size: 22px; color: var(--accent); font-weight: 700; margin-top: 4px; }
.word-hero .meaning { font-size: 20px; margin-top: 8px; }
.word-hero .en { color: var(--text-2); font-size: 14px; }
table.words { width: 100%; border-collapse: collapse; font-size: 16px; }
table.words td { padding: 9px 6px; border-bottom: 1px solid var(--sep); vertical-align: top; }
table.words td.h { font-size: 22px; white-space: nowrap; }
table.words td.h a { color: var(--text); text-decoration: none; }
table.words td.p { color: var(--accent); font-weight: 600; white-space: nowrap; }
table.words td.f { color: var(--text-2); }
.pager { display: flex; justify-content: space-between; gap: 12px; margin: 28px 0 10px; font-size: 15px; }
.pager a { text-decoration: none; font-weight: 600; }
.app-box { text-align: center; background: linear-gradient(135deg, rgba(224,122,95,.12), rgba(233,180,76,.16));
  border-radius: var(--radius); padding: 24px 18px; margin: 34px 0 10px; }
.app-box p { margin: 6px 0 14px; color: var(--text-2); }
.app-box .emoji { font-size: 44px; }
.locked { text-align: center; padding: 18px; border: 1.5px dashed var(--sep); border-radius: var(--radius); color: var(--text-2); }
.faq details { border-bottom: 1px solid var(--sep); padding: 10px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.site-foot { border-top: 1px solid var(--sep); padding: 18px 0 30px; font-size: 13px; color: var(--text-2); }
.site-foot a { color: var(--text-2); }
.site-foot .links { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 8px; }
.demo { display: grid; gap: 10px; }
.demo .card { margin: 0; }
.demo .q { color: var(--text-2); font-size: 15px; margin-bottom: 4px; }
@media (max-width: 600px) { h1 { font-size: 26px; } .word-hero .hanzi { font-size: 60px; } .site-nav { display: none; } }

/* Bandeau « Télécharger l'app » (iPhone hors Safari : webviews, Chrome iOS) */
#appBanner {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 250;
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px calc(18px + env(safe-area-inset-bottom, 0px));
  background: var(--card); border-top: 1px solid var(--sep);
  border-radius: 22px 22px 0 0; box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.22);
}
#appBanner .tip-icon { font-size: 40px; flex: none; }
#appBanner .tip-txt { flex: 1; min-width: 0; font-size: 14px; color: var(--text-2); }
#appBanner .tip-txt b { display: block; font-size: 17px; color: var(--text); white-space: nowrap; }
#appBanner .tip-get {
  flex: none; background: var(--accent); color: #fff; text-decoration: none;
  font-weight: 800; font-size: 16px; padding: 13px 20px; border-radius: 999px;
  box-shadow: 0 4px 14px rgba(224, 122, 95, 0.45);
}
#appBanner button { flex: none; border: none; background: none; color: var(--text-2); font-size: 16px; padding: 4px; cursor: pointer; }

/* --- The Hanzi Tree (pages /hanzi et /book) --- */
.hz-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; }
.hz-cell { display: flex; flex-direction: column; align-items: center; gap: 1px;
  background: var(--card); border-radius: 12px; padding: 10px 4px 8px;
  text-decoration: none; color: var(--text); box-shadow: var(--shadow); }
.hz-cell:hover { outline: 2px solid var(--accent); }
.hz-c { font-size: 34px; line-height: 1.15; }
.hz-p { color: var(--accent); font-weight: 600; font-size: 12.5px; }
.hz-n { color: var(--text-2); font-size: 11px; }
.hz-word { padding: 14px 18px; }
.hz-word-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.hz-w { font-size: 27px; }
.hz-w b { color: var(--accent); font-weight: 600; }
.hz-w a { color: inherit; text-decoration: none; border-bottom: 1px dotted rgba(224,122,95,.55); }
.hz-wp { color: var(--accent); font-weight: 700; }
.hz-wm { color: var(--text-2); margin: 2px 0 4px; }
.book-hero { text-align: center; padding: 26px 0 8px; }
.book-mark { font-size: 64px; color: #c0392b; font-weight: 500; line-height: 1.1; }
.book-hero h1 { margin: 6px 0 8px; }
.book-form { text-align: center; padding: 22px 20px; }
.book-form form { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin: 12px 0 4px; }
.book-form input[type=email] { flex: 1 1 220px; max-width: 340px; padding: 14px 16px; font-size: 16px;
  border: 1.5px solid var(--sep); border-radius: 999px; background: var(--bg); color: var(--text); }
.book-form .cta { border: none; cursor: pointer; }
.book-legal { font-size: 12.5px; color: var(--text-2); }
.book-feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.book-feats b { font-size: 16px; }
.book-feats p { margin: 6px 0 0; color: var(--text-2); font-size: 14.5px; }
.book-samples { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.book-samples img { width: 100%; border-radius: 12px; box-shadow: var(--shadow); }

/* Achat du livre */
.book-offers { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 14px; }
.buy-list { text-align: left; margin: 10px 0 16px; padding-left: 20px; font-size: 14.5px; line-height: 1.6; color: var(--text-2); }
.buy-list b { color: var(--text); }