/* ============================================================
   Particules & Terminaisons — feuille de style
   Design inspiré du format NHK World Easy Japanese :
   grille de tuiles, vues détaillées, mode entraînement.
   ============================================================ */

:root {
  --blue: #0a57b8;
  --blue-dark: #084291;
  --blue-light: #e8f1fd;
  --teal: #0e7c6b;
  --teal-dark: #0a5d50;
  --teal-light: #e6f5f2;
  --ink: #22293a;
  --ink-soft: #5b6478;
  --line: #dde3ee;
  --bg: #f6f8fc;
  --card: #ffffff;
  --ok: #1d8a4e;
  --ok-bg: #e7f6ec;
  --ko: #c23b3b;
  --ko-bg: #fbecec;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(30, 45, 90, .08), 0 6px 18px rgba(30, 45, 90, .06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

.container { width: min(1080px, 92vw); margin: 0 auto; }

.hidden { display: none !important; }

/* ---------- Furigana (lecture hiragana au-dessus des kanji) ---------- */
ruby { ruby-position: over; }

rt {
  font-size: 0.5em;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0;
  line-height: 1.1;
}

.tile-ja rt { font-size: 0.42em; }
.modal-ja rt { font-size: 0.32em; }
.ex-ja rt { font-size: 0.45em; }
.prompt-ja rt { font-size: 0.32em; }
.prompt-sentence rt { font-size: 0.42em; }
.prompt-form-line rt { font-size: 0.5em; }

/* ---------- En-tête ---------- */
.site-header {
  background: #fff;
  border-bottom: 3px solid var(--blue);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.brand-ja {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  background: var(--blue);
  border-radius: 8px;
  padding: 2px 10px;
  line-height: 1.3;
}

.brand-text { font-weight: 600; font-size: 17px; }

.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }

.nav-link {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}

.nav-link:hover { background: var(--blue-light); color: var(--blue-dark); }
.nav-link.active { background: var(--blue); color: #fff; }

.quiz-cta {
  background: var(--teal);
  color: #fff !important;
}
.quiz-cta:hover { background: var(--teal-dark); }
.quiz-cta.active { background: var(--teal-dark); }

/* ---------- En-tête : compte & thème ---------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.user-chip {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-dark);
  background: var(--blue-light);
  border-radius: 99px;
  padding: 5px 12px;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.theme-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  background: var(--card);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .1s, border-color .15s;
}
.theme-btn:hover { transform: scale(1.07); border-color: var(--blue); }

.logged-out .main-nav { display: none !important; }

/* ---------- Écran de connexion ---------- */
.auth-wrap { display: flex; justify-content: center; padding: 48px 0 60px; }

.auth-card {
  width: min(440px, 100%);
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 30px 28px;
}

.auth-card h1 { font-size: 24px; margin-bottom: 6px; text-align: center; }
.auth-sub { text-align: center; color: var(--ink-soft); font-size: 14px; margin-bottom: 18px; }

.auth-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 18px;
}

.auth-tab {
  flex: 1;
  border: none;
  background: transparent;
  padding: 9px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
}
.auth-tab.active { background: var(--card); color: var(--ink); box-shadow: var(--shadow); }

.auth-card label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.auth-card input {
  display: block;
  width: 100%;
  margin-top: 5px;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 9px;
  font-size: 15px;
  background: var(--card);
  color: var(--ink);
}
.auth-card input:focus { outline: none; border-color: var(--blue); }

.auth-error {
  background: var(--ko-bg);
  color: var(--ko);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13.5px;
  margin-bottom: 12px;
}
.auth-submit { width: 100%; }
.auth-note { text-align: center; color: var(--ink-soft); font-size: 12.5px; margin-top: 14px; }

/* ---------- Page d'accueil ---------- */
.hero {
  background: linear-gradient(135deg, var(--blue) 0%, #1673d4 60%, #2f8fe0 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 36px;
  margin: 24px 0;
  box-shadow: var(--shadow);
}

.hero h1 { font-size: 30px; margin-bottom: 10px; }
.hero p { max-width: 720px; font-size: 16.5px; opacity: .95; }
.hero .hero-ja { font-size: 20px; font-weight: 700; margin-top: 14px; letter-spacing: .12em; }

.cat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
  margin-bottom: 26px;
}

.cat-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .12s, border-color .12s;
  text-align: left;
  font: inherit;
  color: inherit;
}

.cat-card:hover { transform: translateY(-2px); }
.cat-card.particles:hover { border-color: var(--blue); }
.cat-card.endings:hover { border-color: var(--teal); }

.cat-card h2 { font-size: 21px; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
.cat-card h2 .dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.cat-card.particles .dot { background: var(--blue); }
.cat-card.endings .dot { background: var(--teal); }

.cat-card p.sub { color: var(--ink-soft); font-size: 14.5px; margin-bottom: 14px; }

.progress-track {
  height: 10px;
  background: #edf1f8;
  border-radius: 99px;
  overflow: hidden;
}

.progress-fill { height: 100%; border-radius: 99px; transition: width .4s ease; }
.cat-card.particles .progress-fill { background: var(--blue); }
.cat-card.endings .progress-fill { background: var(--teal); }

.progress-label { font-size: 13.5px; color: var(--ink-soft); margin-top: 8px; font-weight: 600; }

.howto {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  margin-bottom: 30px;
}

.howto h2 { font-size: 19px; margin-bottom: 14px; }

.howto-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }

.step { border-left: 4px solid var(--blue); padding-left: 14px; }
.step:nth-child(2) { border-color: var(--teal); }
.step:nth-child(3) { border-color: #d99a06; }
.step h3 { font-size: 15.5px; margin-bottom: 4px; }
.step p { font-size: 14px; color: var(--ink-soft); }

.audio-warning {
  background: #fff7e6;
  border: 1px solid #f0d9a8;
  color: #7a5b12;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 14.5px;
  margin-bottom: 18px;
}

/* ---------- Vues catégories ---------- */
.cat-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin: 26px 0 6px;
}

.cat-header h1 { font-size: 27px; }
.cat-header .cat-sub { color: var(--ink-soft); font-size: 15px; width: 100%; }

.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin: 16px 0;
}

.search-box {
  flex: 1;
  min-width: 220px;
  padding: 10px 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  background: #fff;
}
.search-box:focus { outline: none; border-color: var(--blue); }

.filter-group { display: flex; gap: 6px; }

.filter-btn {
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 13.5px;
  padding: 8px 14px;
  border-radius: 99px;
  cursor: pointer;
  transition: all .15s;
}
.filter-btn:hover { border-color: var(--blue); color: var(--blue-dark); }
.filter-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }

/* Bandeau de sélection (vue catégorie) */
.sel-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: #fff;
  border: 1.5px dashed #c9d6ea;
  border-radius: 12px;
  padding: 10px 14px;
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--ink-soft);
}
.sel-bar .sel-count { margin-right: auto; }
.sel-bar .sel-count strong { color: var(--teal-dark); font-size: 16px; }

/* Bandeau « Ma sélection » sur l'accueil */
.home-selection {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--teal-light);
  border: 1.5px solid #b6ddd4;
  border-radius: 12px;
  padding: 14px 18px;
  margin: 0 0 20px;
  color: var(--teal-dark);
  font-size: 15px;
}
.home-selection-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Grille de tuiles ---------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.tile {
  position: relative;
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 10px 14px;
  cursor: pointer;
  text-align: center;
  transition: transform .1s, border-color .15s, box-shadow .15s;
  font: inherit;
  color: inherit;
}

.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.cat-particles .tile:hover { border-color: var(--blue); }
.cat-endings .tile:hover { border-color: var(--teal); }

.tile.learned { background: #f4fbf6; border-color: #bfe3cd; }
.tile.selected { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(14, 124, 107, .18); }

.tile-ja { display: block; font-size: 27px; font-weight: 700; letter-spacing: .04em; line-height: 1.5; }
.tile-romaji { display: block; font-size: 13px; color: var(--ink-soft); margin-top: 6px; }

/* Pastille de sélection (coin bas-droit) */
.tile-select {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #eef2f9;
  color: #8a93a8;
  font-size: 15px;
  font-weight: 700;
  line-height: 26px;
  text-align: center;
  cursor: pointer;
  transition: background .15s, color .15s, transform .1s;
  user-select: none;
}
.tile-select:hover { background: var(--teal-light); color: var(--teal-dark); transform: scale(1.1); }
.tile-select.sel { background: var(--teal); color: #fff; }

.tile-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--ok-bg);
  color: var(--ok);
  font-size: 11px;
  font-weight: 700;
  border-radius: 99px;
  padding: 2px 8px;
}

.tile-speak {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: none;
  background: var(--blue-light);
  color: var(--blue-dark);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .1s, background .15s;
}
.cat-endings .tile-speak { background: var(--teal-light); color: var(--teal-dark); }
.tile-speak:hover { transform: scale(1.12); }
.tile-speak.speaking { animation: pulse 1s infinite; }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }

.empty-note {
  text-align: center;
  color: var(--ink-soft);
  background: #fff;
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  padding: 34px;
  margin-bottom: 20px;
  font-size: 15px;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 8px 0 34px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 38px;
  padding: 8px 12px;
  border-radius: 9px;
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  font-weight: 700;
  cursor: pointer;
  transition: all .12s;
}
.page-btn:hover:not(:disabled) { border-color: var(--blue); color: var(--blue-dark); }
.page-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.page-btn:disabled { opacity: .4; cursor: default; }

/* ---------- Modale ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 60, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(10, 25, 60, .3);
  width: min(560px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  padding: 34px 30px 28px;
  position: relative;
  text-align: center;
  animation: modalIn .18s ease;
}

@keyframes modalIn { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }

.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  border: none;
  background: none;
  font-size: 28px;
  color: var(--ink-soft);
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: var(--ink); }

.modal-ja { font-size: 46px; font-weight: 700; letter-spacing: .05em; margin-bottom: 4px; line-height: 1.4; }
.modal-romaji { font-size: 16px; color: var(--ink-soft); margin-bottom: 14px; }
.modal-meaning {
  font-size: 17px;
  font-weight: 600;
  background: var(--blue-light);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 18px;
}

.modal-examples { text-align: left; margin-bottom: 22px; }

.example-block {
  background: var(--bg);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.ex-ja { font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ex-fr { font-size: 14.5px; color: var(--ink-soft); margin-top: 5px; }

.mini-audio {
  border: none;
  background: var(--blue-light);
  color: var(--blue-dark);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 13px;
  flex: none;
}
.mini-audio:hover { transform: scale(1.1); }

.modal-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- Boutons ---------- */
.btn {
  border: none;
  border-radius: 10px;
  padding: 11px 20px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: filter .12s, transform .1s;
}
.btn:disabled { opacity: .45; cursor: default; filter: none; }
.btn-sm { padding: 8px 14px; font-size: 13.5px; border-radius: 9px; }
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: scale(.98); }

.btn-primary { background: var(--blue); color: #fff; }
.btn-teal { background: var(--teal); color: #fff; }
.btn-audio { background: var(--blue-light); color: var(--blue-dark); }
.btn-ghost { background: #fff; border: 1.5px solid var(--line); color: var(--ink-soft); }

.btn-learned { background: var(--ok-bg); color: var(--ok); }
.btn-learned.is-learned { background: var(--ok); color: #fff; }

/* ---------- Quiz ---------- */
.quiz-setup { max-width: 640px; margin: 26px auto 34px; }

.quiz-setup h1 { font-size: 27px; text-align: center; margin-bottom: 8px; }
.quiz-setup .quiz-intro { text-align: center; color: var(--ink-soft); margin-bottom: 22px; }

.setup-block {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

.setup-block h2 { font-size: 15px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); margin-bottom: 12px; }

.mode-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }

.mode-card {
  border: 2px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 14px 12px;
  cursor: pointer;
  text-align: center;
  transition: all .13s;
  font: inherit;
}
.mode-card:hover { border-color: var(--teal); }
.mode-card.selected { border-color: var(--teal); background: var(--teal-light); }
.mode-card .mode-icon { font-size: 26px; display: block; margin-bottom: 6px; }
.mode-card .mode-name { font-weight: 700; font-size: 15px; }
.mode-card .mode-desc { font-size: 12.5px; color: var(--ink-soft); margin-top: 4px; }

.choice-row { display: flex; gap: 8px; flex-wrap: wrap; }

.choice-btn {
  border: 1.5px solid var(--line);
  background: #fff;
  border-radius: 99px;
  padding: 8px 16px;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
}
.choice-btn.selected { background: var(--teal); border-color: var(--teal); color: #fff; }
.choice-btn:disabled { opacity: .45; cursor: default; border-style: dashed; }

.quiz-start-row { text-align: center; margin-top: 6px; }
.btn-start { font-size: 17px; padding: 13px 40px; }

/* Écran de question */
.quiz-arena { max-width: 720px; margin: 26px auto 34px; }

.quiz-topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.quiz-progress-track { flex: 1; height: 8px; background: #e6ebf5; border-radius: 99px; overflow: hidden; }
.quiz-progress-fill { height: 100%; background: var(--teal); border-radius: 99px; transition: width .3s; }

.quiz-count { font-weight: 700; font-size: 14.5px; color: var(--ink-soft); white-space: nowrap; }

.quiz-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 26px;
  margin-bottom: 16px;
}

.quiz-prompt-label { font-size: 13px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-soft); font-weight: 700; margin-bottom: 10px; }

.listen-box { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 12px 0 6px; }

.big-play {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: none;
  background: var(--teal);
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  transition: transform .1s, filter .12s;
}
.big-play:hover { filter: brightness(1.08); transform: scale(1.05); }
.big-play.speaking { animation: pulse 1s infinite; }

.prompt-ja { font-size: 40px; font-weight: 700; text-align: center; letter-spacing: .05em; margin: 6px 0; line-height: 1.45; }
.prompt-romaji-line { text-align: center; color: var(--ink-soft); font-size: 15.5px; margin-bottom: 8px; }

.prompt-sentence {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  line-height: 1.5;
  margin: 8px 0 4px;
  letter-spacing: .02em;
}

.hl {
  background: #fff3bf;
  border-radius: 5px;
  padding: 0 4px;
  box-shadow: 0 0 0 1.5px #e8c95a;
}

.prompt-sentence-fr { text-align: center; color: var(--ink-soft); font-size: 14.5px; margin-bottom: 12px; }

.prompt-form-line {
  display: block;
  width: fit-content;
  margin: 0 auto;
  text-align: center;
  font-weight: 700;
  font-size: 18px;
  background: var(--teal-light);
  border-radius: 10px;
  padding: 8px 18px;
}

.quiz-speak {
  border: none;
  background: var(--teal-light);
  color: var(--teal-dark);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 15px;
  vertical-align: middle;
  margin-left: 8px;
  transition: transform .1s, filter .12s;
}
.quiz-speak:hover { transform: scale(1.1); }
.quiz-speak.speaking { animation: pulse 1s infinite; }

.prompt-meaning { font-size: 18px; font-weight: 600; text-align: center; background: var(--teal-light); border-radius: 10px; padding: 12px; margin-bottom: 12px; }
.prompt-example { text-align: center; color: var(--ink-soft); font-size: 15px; }
.prompt-example .pe-ja { color: var(--ink); font-weight: 600; font-size: 16.5px; margin-bottom: 3px; }

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px;
}

.option-btn {
  border: 2px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 16px 14px;
  font-size: 21px;
  font-weight: 700;
  cursor: pointer;
  transition: all .12s;
  color: var(--ink);
  letter-spacing: .03em;
}
.option-btn .opt-romaji { display: block; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin-top: 4px; }
.option-btn:hover:not(:disabled) { border-color: var(--teal); transform: translateY(-1px); }
.option-btn:disabled { cursor: default; }

.option-btn.correct { border-color: var(--ok); background: var(--ok-bg); color: var(--ok); }
.option-btn.wrong { border-color: var(--ko); background: var(--ko-bg); color: var(--ko); }
.option-btn.dimmed { opacity: .45; }

.options-meaning { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.option-btn.opt-meaning {
  font-size: 15.5px;
  font-weight: 600;
  text-align: left;
  line-height: 1.45;
  letter-spacing: 0;
  padding: 14px 16px;
}

.fb-example { font-weight: 400; font-size: 13.5px; margin-top: 8px; opacity: .9; }

.quiz-feedback {
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 14px;
}
.quiz-feedback.ok { background: var(--ok-bg); color: var(--ok); }
.quiz-feedback.ko { background: var(--ko-bg); color: var(--ko); }

.quiz-nav-row { display: flex; justify-content: center; gap: 12px; margin-bottom: 30px; }

/* Résultats */
.quiz-results {
  max-width: 560px;
  margin: 40px auto 40px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 38px 30px;
  text-align: center;
}

.quiz-results h1 { font-size: 26px; margin-bottom: 10px; }

.score-circle {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 18px auto;
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  background: var(--teal);
}
.score-circle.mid { background: #d99a06; }
.score-circle.low { background: var(--ko); }

.quiz-results .result-msg { color: var(--ink-soft); margin-bottom: 8px; font-size: 15.5px; }
.quiz-results .best-line { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 20px; }

/* ---------- Pied de page ---------- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 20px 0;
  margin-top: 30px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
}
.foot-note { font-size: 12.5px; opacity: .8; margin-top: 4px; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .hero { padding: 28px 22px; }
  .hero h1 { font-size: 24px; }
  .tile-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
  .modal-ja { font-size: 36px; }
  .prompt-ja { font-size: 32px; }
  .header-inner { justify-content: center; }
  .header-actions { margin-left: 0; }
  .user-chip { max-width: 120px; }
}

/* ---------- Mode accent ---------- */
.accent-cta { background: #7c5cff; color: #fff !important; }
.accent-cta:hover { background: #6a4be8; }
.accent-cta.active { background: #5b3fd1; }

.home-accent {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, #7c5cff, #5b8def);
  color: #fff;
  border-radius: 12px;
  padding: 14px 18px;
  margin: 0 0 20px;
  font-size: 15px;
  box-shadow: var(--shadow);
}
.home-accent .btn { background: #fff; color: #5b3fd1; }

.accent-header { margin: 26px 0 14px; }
.accent-header h1 { font-size: 27px; }
.accent-header p { color: var(--ink-soft); font-size: 14.5px; max-width: 760px; margin-top: 4px; }
.accent-header .accent-hint { font-size: 13px; opacity: .85; margin-top: 6px; }
.accent-level-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: #7c5cff;
  background: rgba(124, 92, 255, .12);
  border-radius: 99px;
  padding: 3px 10px;
  margin-bottom: 8px;
}

.accent-levels { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.accent-level {
  border: 1.5px solid var(--line);
  background: var(--card);
  color: var(--ink-soft);
  border-radius: 99px;
  padding: 8px 18px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}
.accent-level.active { background: #7c5cff; border-color: #7c5cff; color: #fff; }
.accent-level-n {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  background: rgba(124, 92, 255, .15);
  color: #7c5cff;
  border-radius: 99px;
  padding: 1px 7px;
  margin-left: 4px;
}
.accent-level.active .accent-level-n { background: rgba(255, 255, 255, .25); color: #fff; }

.accent-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }

.accent-row { display: flex; flex-direction: column; }

.accent-item {
  text-align: left;
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  font: inherit;
  color: inherit;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  width: 100%;
}
.accent-item:hover { border-color: #7c5cff; }
.accent-item.selected { border-color: #7c5cff; box-shadow: 0 0 0 3px rgba(124, 92, 255, .18); }
.accent-item-ja { font-size: 17px; font-weight: 700; }
.accent-item-fr { font-size: 13px; color: var(--ink-soft); }
.accent-item-meta { margin-left: auto; font-size: 12px; font-weight: 700; color: #7c5cff; }

.accent-expand {
  overflow: hidden;
  animation: accentExpand .3s ease;
}

@keyframes accentExpand {
  from { opacity: 0; transform: translateY(-8px); max-height: 0; }
  to { opacity: 1; transform: none; max-height: 1400px; }
}

.accent-row.open .accent-item { border-bottom-left-radius: 6px; border-bottom-right-radius: 6px; }

.accent-practice {
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 30px;
}
.accent-ja { font-size: 26px; font-weight: 700; line-height: 1.5; }
.accent-kana { color: var(--ink-soft); font-size: 15px; margin-top: 4px; }
.accent-fr { color: var(--ink-soft); font-size: 14px; margin-top: 4px; }
.accent-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0 6px; }
.btn-rec { min-width: 168px; justify-content: center; }
.btn-rec.recording { background: var(--ko); border-color: var(--ko); color: #fff; }
.accent-status { min-height: 22px; font-size: 14px; color: var(--ink-soft); margin: 8px 0; }

.accent-result { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 16px; }
.accent-score-row { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.accent-score-row .score-circle { width: 92px; height: 92px; font-size: 24px; margin: 0; }
.accent-score-detail { flex: 1; min-width: 260px; }
.accent-feedback { font-weight: 700; margin-bottom: 8px; }

.accent-bars { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
.accent-bar { display: grid; grid-template-columns: 100px 1fr 48px; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-soft); }
.accent-bar b { text-align: right; font-size: 12.5px; }
.bar-track { height: 8px; background: #e6ebf5; border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; background: #7c5cff; border-radius: 99px; }
.bar-fill.teal { background: var(--teal); }
.bar-fill.violet { background: #7c5cff; }
.accent-transcript { font-size: 12.5px; color: var(--ink-soft); font-style: italic; margin: 2px 0 6px; }
.accent-words {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 0;
  font-size: 16px;
  line-height: 1.9;
  margin: 10px 0 4px;
}
.accent-words span { padding: 1px 3px; border-radius: 4px; }
.w-ok { color: var(--ok); background: var(--ok-bg); font-weight: 600; }
.w-ko { color: var(--ko); background: var(--ko-bg); font-weight: 600; }
.w-extra { color: #a06a00; background: #fff4dc; font-style: italic; }
.accent-words small { font-size: 10.5px; font-weight: 500; opacity: .9; margin-left: 3px; }
.accent-words-legend { font-size: 11.5px; color: var(--ink-soft); margin: 2px 0 8px; }
.accent-words-legend .w-ok, .accent-words-legend .w-ko { font-size: 11px; padding: 0 4px; }
.accent-mistakes { font-size: 12.5px; color: var(--ink-soft); margin: 2px 0 6px; }
.accent-mistakes.ok { color: var(--ok); }
.mk-ref { color: var(--ok); font-weight: 600; }
.mk-heard { color: var(--ko); font-weight: 600; }
.accent-meta { font-size: 12.5px; color: var(--ink-soft); }

#accCanvas { width: 100%; max-width: 860px; height: auto; background: var(--bg); border-radius: 10px; margin-top: 14px; display: block; }
.accent-legend { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--ink-soft); margin: 6px 0 12px; }
.accent-legend .lg { width: 16px; height: 3px; border-radius: 2px; display: inline-block; }
.accent-legend .lg.ref { background: #3b82f6; }
.accent-legend .lg.user { background: #14b8a6; margin-left: 10px; }

.accent-segments { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin-bottom: 10px; }
.acc-seg { border-radius: 10px; padding: 8px 10px; font-size: 12.5px; display: flex; flex-direction: column; gap: 2px; }
.acc-seg.ok { background: var(--ok-bg); color: var(--ok); }
.acc-seg.ko { background: var(--ko-bg); color: var(--ko); }
.acc-seg .seg-title { font-weight: 700; }
.acc-seg .seg-diff { opacity: .85; }

.accent-loading, .accent-offline {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}
.accent-offline h1 { font-size: 22px; color: var(--ink); margin-bottom: 8px; }
.accent-offline p { margin-bottom: 16px; }

/* ---------- Thème sombre ---------- */:root[data-theme="dark"] {
  --blue: #5a95ea;
  --blue-dark: #8ab6f5;
  --blue-light: #16243a;
  --teal: #33b49c;
  --teal-dark: #63d6bd;
  --teal-light: #102b27;
  --ink: #e8ecf6;
  --ink-soft: #9fabc4;
  --line: #2b3548;
  --bg: #0c1120;
  --card: #151c2b;
  --ok: #4fd083;
  --ok-bg: #123024;
  --ko: #f07373;
  --ko-bg: #33191c;
  --shadow: 0 1px 3px rgba(0, 0, 0, .5), 0 6px 18px rgba(0, 0, 0, .35);
}

:root[data-theme="dark"] .site-header { background: #0f1624; }
:root[data-theme="dark"] .tile.learned,
:root[data-theme="dark"] .empty-note,
:root[data-theme="dark"] .sel-bar,
:root[data-theme="dark"] .search-box,
:root[data-theme="dark"] .modal,
:root[data-theme="dark"] .option-btn,
:root[data-theme="dark"] .mode-card,
:root[data-theme="dark"] .choice-btn,
:root[data-theme="dark"] .filter-btn,
:root[data-theme="dark"] .page-btn,
:root[data-theme="dark"] .btn-ghost,
:root[data-theme="dark"] .quiz-card,
:root[data-theme="dark"] .setup-block,
:root[data-theme="dark"] .quiz-results,
:root[data-theme="dark"] .auth-card,
:root[data-theme="dark"] .cat-card,
:root[data-theme="dark"] .howto,
:root[data-theme="dark"] .tile {
  background: var(--card);
  color: var(--ink);
}

:root[data-theme="dark"] .tile.learned { background: #12261b; border-color: #2f6a48; }
:root[data-theme="dark"] .example-block { background: #101725; }
:root[data-theme="dark"] .progress-track { background: #1d2637; }
:root[data-theme="dark"] .hl { background: #46380f; box-shadow: 0 0 0 1.5px #8a6d1c; }
:root[data-theme="dark"] .tile-select { background: #1d2637; color: #9fb0c9; }
:root[data-theme="dark"] .modal-backdrop { background: rgba(0, 0, 0, .72); }
:root[data-theme="dark"] .auth-tab.active { background: var(--card); }
:root[data-theme="dark"] .theme-btn { background: var(--card); }
:root[data-theme="dark"] .option-btn:hover:not(:disabled) { border-color: var(--teal); }
:root[data-theme="dark"] .cat-card.particles:hover { border-color: var(--blue); }
:root[data-theme="dark"] .cat-card.endings:hover { border-color: var(--teal); }
:root[data-theme="dark"] .bar-track { background: #1d2637; }
:root[data-theme="dark"] .w-ok { background: rgba(46, 160, 67, .2); }
:root[data-theme="dark"] .w-ko { background: rgba(220, 80, 80, .2); }
:root[data-theme="dark"] .w-extra { background: rgba(200, 150, 40, .2); }
:root[data-theme="dark"] #accCanvas { background: #0f1624; }
:root[data-theme="dark"] .accent-item:hover { border-color: #9b83ff; }