/* ============================================================
   AGORA — styles
   Direction : éditorial français néo-brutaliste.
   Papier crème, encre, bleu Klein, rouge signal. Didone massive.
   ============================================================ */

:root {
  --paper: #f4eddd;
  --paper-deep: #ece2cb;
  --ink: #17140e;
  --blue: #2230d4;
  --red: #e4502a;
  --green: #2e7d4f;
  --gold: #c9962e;
  --shadow: 5px 5px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
  --font-display: "Gloock", serif;
  --font-body: "Karla", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--blue); color: var(--paper); }

/* ---------- grain de papier ---------- */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.45;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- typo utilitaires ---------- */
.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ============================================================
   HEADER (barre de navigation uniquement)
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.4rem;
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-size: 1.55rem;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.logo .owl {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  font-size: 1.1rem;
  transform: rotate(-6deg);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo:hover .owl { transform: rotate(8deg) scale(1.08); }

.hud {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.hud .xp-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  background: var(--ink);
  color: var(--paper);
  padding: 0.4rem 0.85rem;
  border-radius: 99px;
  white-space: nowrap;
}

.hud .xp-pill strong { color: var(--gold); }

.hud .level-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

/* ============================================================
   BARRE QUOTIDIENNE (série, objectif, J-X)
   ============================================================ */
.daily-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
  padding: 0.5rem 1rem;
  border-bottom: 2px solid var(--ink);
  background: var(--paper-deep);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

.daily-strip .sep { color: var(--red); }
.daily-strip .hot { color: var(--red); font-weight: 600; }
.daily-strip .jx { color: var(--blue); font-weight: 600; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 5.5rem 1.5rem 4.5rem;
  text-align: center;
  border-bottom: 2px solid var(--ink);
  overflow: hidden;
}

.hero .bg-quote {
  position: absolute;
  font-family: var(--font-display);
  color: var(--blue);
  opacity: 0.1;
  user-select: none;
  pointer-events: none;
  line-height: 1;
}

.hero .bg-quote.left { font-size: 26rem; top: -7rem; left: -3rem; }
.hero .bg-quote.right { font-size: 26rem; bottom: -16rem; right: -3rem; }

.hero .surtitre {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: 1.5px solid var(--ink);
  padding: 0.35rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.8rem;
  background: var(--paper);
  animation: drop-in 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 8.5vw, 6.2rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  max-width: 14ch;
  margin: 0 auto;
  animation: drop-in 0.7s 0.1s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.hero h1 .accent {
  position: relative;
  color: var(--blue);
  font-style: italic;
  white-space: nowrap;
}

.hero h1 .accent svg {
  position: absolute;
  left: 0;
  bottom: -0.18em;
  width: 100%;
  height: 0.28em;
  overflow: visible;
}

.hero h1 .accent svg path {
  fill: none;
  stroke: var(--red);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: draw 0.9s 0.8s ease-out forwards;
}

.hero p.pitch {
  max-width: 46ch;
  margin: 1.6rem auto 2.4rem;
  font-size: 1.1rem;
  animation: drop-in 0.7s 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.hero .cta {
  animation: drop-in 0.7s 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.stamp {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 0.8rem;
  border: 2px solid currentColor;
  border-radius: 4px;
  background: var(--paper);
  user-select: none;
}

.stamp.s1 { color: var(--red); transform: rotate(-8deg); top: 18%; left: 6%; animation: drop-in 0.5s 0.9s both; }
.stamp.s2 { color: var(--blue); transform: rotate(6deg); top: 30%; right: 7%; animation: drop-in 0.5s 1.05s both; }
.stamp.s3 { color: var(--ink); transform: rotate(-4deg); bottom: 14%; right: 13%; animation: drop-in 0.5s 1.2s both; }

@keyframes drop-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.stamp.s1 { --r: -8deg; }
.stamp.s2 { --r: 6deg; }
.stamp.s3 { --r: -4deg; }

@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- boutons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 0.85rem 1.6rem;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
  text-decoration: none;
}

.btn:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--ink); }
.btn:active { transform: translate(3px, 3px); box-shadow: 0 0 0 var(--ink); }

.btn.primary { background: var(--blue); color: var(--paper); }
.btn.danger { background: var(--red); color: var(--paper); }
.btn.ghost { box-shadow: none; border-width: 1.5px; padding: 0.6rem 1.1rem; }
.btn.ghost:hover { background: var(--ink); color: var(--paper); transform: none; }
.btn:disabled { opacity: 0.4; pointer-events: none; }

/* ============================================================
   MARQUEE notions
   ============================================================ */
.marquee {
  border-bottom: 2px solid var(--ink);
  background: var(--blue);
  color: var(--paper);
  overflow: hidden;
  white-space: nowrap;
  padding: 0.65rem 0;
}

.marquee .track {
  display: inline-block;
  animation: scroll 38s linear infinite;
}

.marquee span {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 1.1rem;
}

.marquee i { font-style: normal; color: var(--gold); }

@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   GRILLE DES JEUX
   ============================================================ */
.games {
  max-width: 1080px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 5rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2.4rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
}

.section-head .rule {
  flex: 1;
  height: 2px;
  background: var(--ink);
  transform: translateY(-0.4rem);
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.6rem;
}

.game-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
  padding: 1.7rem 1.6rem 1.5rem;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.game-card:hover { transform: translate(-3px, -3px); box-shadow: 8px 8px 0 var(--ink); }
.game-card:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--ink); }

.game-card .num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--red);
}

.game-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.7rem;
  line-height: 1.1;
}

.game-card p { font-size: 0.95rem; opacity: 0.85; }

.game-card .best {
  margin-top: auto;
  padding-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
}

.game-card .pictogram {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-size: 1.7rem;
  transform: rotate(8deg);
}

.game-card:nth-child(2n) .pictogram { transform: rotate(-8deg); }

/* ============================================================
   TOPNAV
   ============================================================ */
.topnav {
  display: flex;
  gap: 0.3rem;
  margin-right: auto;
  margin-left: 1.2rem;
}

.topnav button {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: none;
  border: none;
  color: var(--ink);
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.topnav button:hover { border-bottom-color: var(--red); color: var(--blue); }

/* ============================================================
   LE COURS — grille des notions
   ============================================================ */
.section-pitch {
  max-width: 60ch;
  margin: -1.2rem 0 2rem;
  opacity: 0.85;
}

.notion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.9rem;
}

.notion-chip {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: left;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 0.95rem 1rem 0.85rem;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-body);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease;
}

.notion-chip:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--blue);
  color: var(--paper);
}

.notion-chip .n {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--red);
}

.notion-chip:hover .n { color: var(--gold); }

.notion-chip .t {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.1;
}

.notion-chip .c {
  font-size: 0.78rem;
  opacity: 0.7;
}

.methodo-teasers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.6rem;
}

/* ============================================================
   FICHES (cours + méthodo)
   ============================================================ */
.fiche-shell {
  max-width: 780px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

.fiche-back { margin-bottom: 2rem; }

.fiche-head .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
}

.fiche-head h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  line-height: 1.02;
  margin: 0.4rem 0 1.2rem;
}

.fiche-head .lead {
  font-size: 1.12rem;
  line-height: 1.65;
  border-left: 5px solid var(--blue);
  padding-left: 1.2rem;
  margin-bottom: 2.8rem;
}

.fiche-cta {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
  margin: -1.2rem 0 2.8rem;
}

.fiche-cta .mono { opacity: 0.75; }

.fiche-sec { margin-bottom: 2.8rem; }

.fiche-sec > .sec-title {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.fiche-sec > .sec-title::after {
  content: "";
  flex: 1;
  height: 1.5px;
  background: var(--ink);
  opacity: 0.25;
}

.prob-list { list-style: none; display: grid; gap: 0.7rem; }

.prob-list li {
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.3;
  display: flex;
  gap: 0.8rem;
}

.prob-list li::before {
  content: "?";
  flex: none;
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border: 2px solid var(--red);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--red);
  transform: translateY(0.1rem);
}

.cours-part { margin-bottom: 1.6rem; }

.cours-part h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.3rem;
  margin-bottom: 0.45rem;
}

.cours-part h3::before { content: "§ "; color: var(--red); }

.cours-part p {
  font-size: 0.99rem;
  line-height: 1.65;
}

.vocab-list { display: grid; gap: 0.6rem; }

.vocab-row {
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  gap: 0.9rem;
  border: 1.5px solid var(--ink);
  background: var(--paper-deep);
  padding: 0.7rem 1rem;
}

.vocab-row dt {
  font-weight: 700;
  color: var(--blue);
}

.vocab-row dd { font-size: 0.93rem; }

@media (max-width: 560px) {
  .vocab-row { grid-template-columns: 1fr; gap: 0.2rem; }
}

.auteur-card {
  border: 2px solid var(--ink);
  background: #fbf7ec;
  box-shadow: var(--shadow-sm);
  padding: 1.2rem 1.4rem;
  margin-bottom: 1rem;
}

.auteur-card .who {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
}

.auteur-card .name {
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.auteur-card .oeuvre {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}

.auteur-card .these { font-size: 0.97rem; }

.cite-block {
  position: relative;
  padding: 0.4rem 0 0.4rem 2.6rem;
  margin-bottom: 1.1rem;
}

.cite-block::before {
  content: "«";
  position: absolute;
  left: 0;
  top: -0.4rem;
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--red);
}

.cite-block .txt {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.35;
}

.cite-block .who {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.3rem;
  opacity: 0.75;
}

.repere-chips { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.repere-chips span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  border: 1.5px solid var(--ink);
  padding: 0.35rem 0.7rem;
  background: var(--paper-deep);
}

.sujet-list { list-style: none; display: grid; gap: 0.6rem; }

.sujet-list li {
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 1rem;
  font-weight: 600;
}

.sujet-list li::before { content: "SUJET — "; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--blue); }

.piege-box {
  border: 2px solid var(--red);
  background: #fdf0ea;
  box-shadow: 4px 4px 0 var(--red);
  padding: 1.2rem 1.4rem;
}

.piege-box .ttl {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.5rem;
}

.fiche-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

/* ---------- méthodo ---------- */
.methodo-tabs { display: flex; gap: 0.8rem; margin-bottom: 2.2rem; }

.methodo-tabs button {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.6rem 1.1rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  cursor: pointer;
  color: var(--ink);
}

.methodo-tabs button.on { background: var(--ink); color: var(--paper); }

.etape-card {
  display: flex;
  gap: 1.1rem;
  border: 2px solid var(--ink);
  background: #fbf7ec;
  box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.3rem;
  margin-bottom: 0.9rem;
}

.etape-card .step-t {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.etape-card .step-d { font-size: 0.95rem; }

.erreur-card {
  border-left: 5px solid var(--red);
  background: var(--paper-deep);
  padding: 0.9rem 1.2rem;
  margin-bottom: 0.8rem;
}

.erreur-card .err-t { font-weight: 700; margin-bottom: 0.2rem; }
.erreur-card .err-t::before { content: "✗ "; color: var(--red); }
.erreur-card .err-d { font-size: 0.93rem; }

.astuce-box {
  border: 2px solid var(--gold);
  background: #faf3df;
  box-shadow: 4px 4px 0 var(--gold);
  padding: 1.2rem 1.4rem;
}

.astuce-box .ttl {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

/* ============================================================
   VUES DE JEU
   ============================================================ */
.view { display: none; }
.view.active { display: block; animation: drop-in 0.35s ease both; }

.game-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

.game-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.8rem;
  flex-wrap: wrap;
}

.game-topbar h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.8rem;
}

.progress-meta {
  display: flex;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.progress-meta .streak { color: var(--red); }

.progress-track {
  height: 10px;
  border: 2px solid var(--ink);
  background: var(--paper);
  margin-bottom: 2.2rem;
}

.progress-track .fill {
  height: 100%;
  width: 0;
  background: var(--blue);
  transition: width 0.35s cubic-bezier(0.34, 1.2, 0.64, 1);
}

/* ---------- carte de question ---------- */
.q-card {
  border: 2px solid var(--ink);
  background: #fbf7ec;
  box-shadow: var(--shadow);
  padding: 2rem 1.8rem;
  margin-bottom: 1.6rem;
}

.q-card .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.8rem;
}

.q-card .question {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  line-height: 1.25;
}

.q-card .question.is-quote { font-style: italic; }

.options { display: grid; gap: 0.8rem; }

.opt {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 0.9rem 1.1rem;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.1s ease;
}

.opt .key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  flex: none;
}

.opt:hover:not(:disabled) { transform: translateX(5px); background: #fbf7ec; }
.opt:disabled { cursor: default; }

.opt.correct {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
  animation: pop 0.3s ease;
}

.opt.correct .key { border-color: var(--paper); }

.opt.wrong {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
  animation: shake 0.35s ease;
}

.opt.wrong .key { border-color: var(--paper); }

.opt.dimmed { opacity: 0.45; }

@keyframes pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.025); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* ---------- vrai/faux ---------- */
.vf-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.vf-buttons .opt {
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  padding: 1.2rem;
}

/* ---------- explication ---------- */
.explain {
  border-left: 5px solid var(--blue);
  background: var(--paper-deep);
  padding: 1.1rem 1.3rem;
  margin-top: 1.4rem;
  font-size: 0.96rem;
  animation: drop-in 0.3s ease both;
}

.explain .verdict {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.4rem;
}

.explain .verdict.good { color: var(--green); }
.explain .verdict.bad { color: var(--red); }

.next-zone { margin-top: 1.5rem; text-align: right; }

/* ---------- flashcards ---------- */
.flash-scene { perspective: 1400px; margin-bottom: 1.6rem; }

.flash-card {
  position: relative;
  width: 100%;
  min-height: 330px;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.flash-card.flipped { transform: rotateY(180deg); }

.flash-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.flash-face.front { background: var(--blue); color: var(--paper); }

.flash-face.front .term {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  line-height: 1.15;
}

.flash-face.front .hint {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.75;
}

.flash-face.back {
  background: #fbf7ec;
  color: var(--ink);
  transform: rotateY(180deg);
  font-size: 1.02rem;
  line-height: 1.6;
}

.flash-grade {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ---------- jeu d'association ---------- */
.match-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.match-tile {
  min-height: 96px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 0.6rem 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  line-height: 1.25;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, opacity 0.3s ease;
}

.match-tile.concept { font-style: italic; font-weight: 400; background: #fbf7ec; }
.match-tile:hover:not(.matched):not(.selected) { transform: translate(-2px, -2px); }
.match-tile.selected { background: var(--blue); color: var(--paper); transform: scale(0.97); }
.match-tile.matched {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
  box-shadow: none;
  opacity: 0.55;
  cursor: default;
  animation: pop 0.3s ease;
}
.match-tile.error { background: var(--red); color: var(--paper); animation: shake 0.35s ease; }

/* ---------- écran de fin ---------- */
.endscreen {
  text-align: center;
  border: 2px solid var(--ink);
  background: #fbf7ec;
  box-shadow: var(--shadow);
  padding: 3rem 2rem;
  animation: drop-in 0.4s ease both;
}

.endscreen .big-score {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  line-height: 1;
  color: var(--blue);
}

.endscreen .mention {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0.8rem 0 0.4rem;
  color: var(--red);
}

.endscreen p.comment { max-width: 40ch; margin: 0.8rem auto 1.8rem; }

.endscreen .actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.exam-card { background: var(--ink); color: var(--paper); }
.exam-card .best { color: var(--gold); }
.exam-card:hover { background: var(--blue); }

.exam-recap {
  text-align: left;
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 1.1rem 1.3rem;
  margin: 0 auto 1.8rem;
  max-width: 480px;
}

.exam-recap .recap-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.8rem;
}

.exam-recap .recap-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.45rem 0;
  border-top: 1px solid rgba(23, 20, 14, 0.15);
}

.exam-recap .recap-notion {
  flex: 1;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.exam-recap .recap-score {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--red);
}

.xp-gain {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  background: var(--gold);
  color: var(--ink);
  border: 2px solid var(--ink);
  padding: 0.35rem 0.9rem;
  transform: rotate(-2deg);
  margin-bottom: 1rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  padding: 2.6rem 1.5rem;
}

footer .quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  max-width: 38ch;
  margin: 0 auto 0.6rem;
}

footer .who {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.6;
}

footer .madeby {
  margin-top: 1.6rem;
  font-size: 0.8rem;
  opacity: 0.5;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 700px) {
  .hero { padding: 3.5rem 1.2rem 3rem; }
  .hero .bg-quote.left { font-size: 15rem; top: -4rem; }
  .hero .bg-quote.right { font-size: 15rem; bottom: -9rem; }
  .stamp.s1 { top: 6%; left: 2%; }
  .stamp.s2 { top: 12%; right: 2%; }
  .stamp.s3 { display: none; }
  .hud .level-name { display: none; }
  .match-board { grid-template-columns: repeat(2, 1fr); }
  .match-tile { min-height: 80px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .marquee .track { animation: none; }
}