:root {
  --fuchsia: #ff3ea5;
  --jaune: #ffd23f;
  --turquoise: #3bceac;
  --violet: #7b2cbf;
  --orange: #ff8c42;
  --encre: #2b1846;
  --encre-douce: #5e4b78;
  --creme: #fff8ec;
  --blanc: #ffffff;
  --ombre: 0 10px 30px rgba(123, 44, 191, 0.18);
  --rayon: 22px;
  --police: "Fredoka", "Trebuchet MS", system-ui, sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--police);
  color: var(--encre);
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 210, 63, 0.35), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(255, 62, 165, 0.25), transparent 45%),
    radial-gradient(circle at 50% 100%, rgba(59, 206, 172, 0.3), transparent 50%),
    var(--creme);
  overflow-x: hidden;
}

.visuellement-cache {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Décor ---------- */

#confettis {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 50;
}

.ciel {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.ballon-deco {
  position: absolute;
  left: var(--x);
  bottom: -140px;
  width: 54px;
  height: 66px;
  border-radius: 50% 50% 48% 48% / 55% 55% 45% 45%;
  background: radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.6), transparent 30%), var(--c);
  opacity: 0.55;
  animation: monter var(--d) linear var(--r) infinite;
}

.ballon-deco::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 60px;
  background: rgba(43, 24, 70, 0.3);
}

@keyframes monter {
  0% { transform: translate(0, 0) rotate(-4deg); }
  50% { transform: translate(18px, -60vh) rotate(4deg); }
  100% { transform: translate(-10px, -125vh) rotate(-4deg); }
}

.guirlande {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  gap: 4px;
  padding-top: 0;
  overflow: hidden;
}

.guirlande span {
  width: 34px;
  height: 40px;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  background: var(--fuchsia);
  animation: balancer 3s ease-in-out infinite;
  transform-origin: top center;
}

.guirlande span:nth-child(4n + 2) { background: var(--jaune); animation-delay: -0.5s; }
.guirlande span:nth-child(4n + 3) { background: var(--turquoise); animation-delay: -1s; }
.guirlande span:nth-child(4n + 4) { background: var(--violet); animation-delay: -1.5s; }

@keyframes balancer {
  0%, 100% { transform: rotate(-6deg); }
  50% { transform: rotate(6deg); }
}

/* ---------- Mise en page ---------- */

.ecran {
  position: relative;
  z-index: 2;
  max-width: 560px;
  margin: 0 auto;
  padding: 8px 16px 48px;
}

.entete {
  text-align: center;
}

.surtitre {
  margin: 12px 0 0;
  font-size: clamp(1.3rem, 5vw, 1.7rem);
  font-weight: 600;
  color: var(--violet);
}

.vingt {
  margin: -6px 0 0;
  font-size: clamp(7rem, 38vw, 11rem);
  line-height: 1;
  font-weight: 700;
  background: linear-gradient(120deg, var(--fuchsia), var(--orange) 35%, var(--jaune) 55%, var(--turquoise) 75%, var(--violet));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 6px 0 rgba(43, 24, 70, 0.12));
  animation: arc-en-ciel 6s ease-in-out infinite, rebond 2.4s ease-in-out infinite;
}

@keyframes arc-en-ciel {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes rebond {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-8px) rotate(2deg); }
}

.intro {
  margin: 4px 0 24px;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--encre-douce);
}

/* ---------- Boutons ---------- */

.bouton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 54px;
  padding: 12px 24px;
  border: none;
  border-radius: 999px;
  font: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.2s ease;
}

.bouton:active {
  transform: translateY(2px) scale(0.98);
}

.bouton:focus-visible,
input:focus-visible {
  outline: 3px solid var(--turquoise);
  outline-offset: 3px;
}

.bouton-principal {
  color: var(--blanc);
  background: linear-gradient(135deg, var(--fuchsia), var(--violet));
  box-shadow: 0 6px 0 #5a1d8f, var(--ombre);
}

.bouton-principal:hover {
  transform: translateY(-2px);
}

.bouton-secondaire {
  color: var(--encre);
  background: var(--jaune);
  box-shadow: 0 5px 0 #d9a91a;
}

.bouton-secondaire:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* ---------- Formulaire ---------- */

.formulaire {
  display: grid;
  gap: 14px;
  padding: 20px;
  background: var(--blanc);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
}

.formulaire input {
  width: 100%;
  min-height: 58px;
  padding: 12px 18px;
  border: 3px dashed var(--fuchsia);
  border-radius: 16px;
  font: inherit;
  font-size: 1.4rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.08em;
  color: var(--violet);
  background: #fff3fa;
}

.formulaire input::placeholder {
  color: #c79bc0;
  letter-spacing: normal;
  font-weight: 500;
}

.formulaire.secousse input {
  animation: secouer 0.5s ease;
  border-color: var(--orange);
}

@keyframes secouer {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-10px) rotate(-1deg); }
  40% { transform: translateX(9px) rotate(1deg); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(4px); }
}

.reponse {
  min-height: 1.5em;
  margin: 0;
  text-align: center;
  font-weight: 500;
  color: var(--encre-douce);
}

.titre-coffre {
  margin: 0;
  text-align: center;
  font-size: 1.5rem;
  color: var(--violet);
}

/* ---------- Énigmes ---------- */

.enigmes {
  margin-bottom: 32px;
}

.barre-enigmes {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.barre-enigmes h2 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--violet);
}

.jokers {
  margin: 0;
  padding: 6px 14px;
  font-weight: 600;
  border-radius: 999px;
  background: var(--blanc);
  box-shadow: var(--ombre);
}

.jokers .joker-utilise {
  filter: grayscale(1);
  opacity: 0.35;
}

.consigne {
  margin: 10px 0 18px;
  line-height: 1.5;
  color: var(--encre-douce);
}

.liste-enigmes {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.enigme {
  position: relative;
  padding: 20px 18px 18px;
  font-size: 1.08rem;
  line-height: 1.55;
  background: var(--blanc);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
  border-top: 8px solid var(--couleur, var(--turquoise));
  animation: retourner 0.6s cubic-bezier(0.2, 0.9, 0.3, 1.3) both;
  animation-delay: var(--delai, 0s);
  transform-origin: top center;
}

.enigme-entete {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.enigme-numero {
  display: grid;
  place-items: center;
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-weight: 700;
  color: var(--blanc);
  background: var(--couleur, var(--turquoise));
}

.enigme-titre {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.enigme p {
  margin: 0 0 10px;
}

.enigme strong {
  color: var(--fuchsia);
}

.code-chiffre {
  display: block;
  margin: 8px 0 12px;
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--violet);
}

.aides {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.aide {
  padding: 10px 14px;
  font-size: 1rem;
  border-radius: 14px;
  background: #fff6d6;
  border: 2px dashed var(--jaune);
  animation: apparaitre 0.4s ease both;
}

.bouton-joker {
  min-height: 44px;
  margin-top: 12px;
  padding: 8px 18px;
  font-size: 1rem;
}

@keyframes retourner {
  from { opacity: 0; transform: perspective(600px) rotateX(-80deg); }
  to { opacity: 1; transform: perspective(600px) rotateX(0); }
}

/* ---------- Joker ultime : ballons ---------- */

.joker-ultime {
  margin-top: 18px;
  padding: 20px 18px;
  text-align: center;
  background: var(--blanc);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
  border-top: 8px solid var(--violet);
  animation: apparaitre 0.5s ease both;
}

.joker-ultime h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  color: var(--violet);
}

.joker-ultime p {
  margin: 0 0 12px;
  line-height: 1.5;
}

.cases {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 8px 0 16px;
}

.case {
  display: grid;
  place-items: center;
  width: 46px;
  height: 54px;
  border-radius: 12px;
  border: 3px dashed #d9c8ea;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--violet);
  background: #faf5ff;
}

.case.remplie {
  border-style: solid;
  border-color: var(--turquoise);
  background: #e9fbf6;
  animation: pop-case 0.4s ease;
}

@keyframes pop-case {
  50% { transform: scale(1.25); }
}

.ballons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px 8px;
  padding: 4px 0 24px;
}

.ballon {
  position: relative;
  justify-self: center;
  width: 52px;
  height: 64px;
  padding: 0;
  border: none;
  border-radius: 50% 50% 48% 48% / 55% 55% 45% 45%;
  background: radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.7), transparent 28%), var(--c);
  cursor: pointer;
  animation: flotter 2.6s ease-in-out infinite;
  animation-delay: var(--delai);
}

.ballon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 22px;
  background: rgba(43, 24, 70, 0.35);
}

.ballon::before {
  content: "";
  position: absolute;
  left: 50%;
  top: calc(100% - 3px);
  width: 10px;
  height: 8px;
  transform: translateX(-50%);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  background: var(--c);
}

@keyframes flotter {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-7px) rotate(3deg); }
}

.ballon.eclate {
  animation: eclater 0.25s ease-out forwards;
  pointer-events: none;
}

@keyframes eclater {
  to { transform: scale(1.6); opacity: 0; }
}

.contenu-ballon {
  justify-self: center;
  display: grid;
  place-items: center;
  width: 52px;
  height: 64px;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--violet);
  animation: pop-case 0.4s ease;
}

/* ---------- Écran cadeau ---------- */

.titre-cadeau {
  margin: 4px 0 24px;
  font-size: clamp(2rem, 9vw, 2.8rem);
  background: linear-gradient(120deg, var(--fuchsia), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.scene-carte {
  perspective: 1200px;
  margin: 0 auto 28px;
  max-width: 400px;
}

.carte {
  position: relative;
  aspect-ratio: 1.586;
  transform-style: preserve-3d;
  transform: rotateY(180deg);
  transition: transform 1.1s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.carte.retournee {
  transform: rotateY(0);
}

.carte-face {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: 0 20px 40px rgba(43, 24, 70, 0.3);
  overflow: hidden;
}

.carte-dos {
  display: grid;
  place-items: center;
  font-size: 4rem;
  transform: rotateY(180deg);
  background: repeating-linear-gradient(45deg, var(--jaune) 0 20px, var(--orange) 20px 40px);
}

.carte-avant {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 22px;
  color: var(--blanc);
  background:
    radial-gradient(circle at 90% 10%, rgba(255, 210, 63, 0.7), transparent 35%),
    radial-gradient(circle at 0% 100%, rgba(59, 206, 172, 0.7), transparent 45%),
    linear-gradient(135deg, var(--fuchsia), var(--violet));
}

.carte-avant::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 45%, transparent 60%);
  background-size: 250% 100%;
  animation: reflet 4s ease-in-out 1.2s infinite;
  pointer-events: none;
}

@keyframes reflet {
  0% { background-position: 120% 0; }
  40%, 100% { background-position: -120% 0; }
}

.carte-haut,
.carte-bas {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.carte-label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.85;
}

.carte-site {
  font-size: 1.3rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.carte-montant {
  position: relative;
  z-index: 1;
  font-size: clamp(2.2rem, 11vw, 3rem);
  font-weight: 700;
  text-shadow: 0 3px 0 rgba(43, 24, 70, 0.25);
}

.carte-code {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  overflow-wrap: anywhere;
}

.carte-20 {
  position: absolute;
  right: 12px;
  bottom: -18px;
  font-size: 7rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.15);
}

.actions-cadeau {
  display: grid;
  gap: 14px;
  max-width: 400px;
  margin: 0 auto;
}

.message-perso {
  max-width: 440px;
  margin: 28px auto 0;
  padding: 20px;
  font-size: 1.15rem;
  line-height: 1.6;
  text-align: center;
  white-space: pre-line;
  background: var(--blanc);
  border-radius: var(--rayon);
  box-shadow: var(--ombre);
}

.message-perso:empty {
  display: none;
}

.apparition {
  animation: apparaitre 0.7s ease both;
}

@keyframes apparaitre {
  from { opacity: 0; transform: translateY(24px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

@media (min-width: 600px) {
  .ecran {
    padding-top: 16px;
  }

  .ballons {
    gap: 22px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .ballon-deco {
    display: none;
  }
}