:root {
  --qk-ink: #20213f;
  --qk-muted: #666486;
  --qk-purple: #7c3aed;
  --qk-pink: #ec4899;
  --qk-coral: #ff7657;
  --qk-cream: #fff8f1;
  --qk-card: rgba(255, 250, 252, 0.94);
  --qk-line: rgba(255, 255, 255, 0.72);
  --qk-shadow: 0 24px 60px rgba(56, 28, 99, 0.2);
}

.quizkids-adventure-home {
  color: var(--qk-ink);
}

.quizkids-adventure-heading {
  max-width: 860px;
  margin: 0 auto 32px;
  padding-top: 22px;
  text-align: center;
  color: white;
}

.quizkids-adventure-heading h2 {
  margin: 8px 0 6px;
  font-family: "Nunito", system-ui, sans-serif;
  font-size: clamp(2.5rem, 5.2vw, 5rem);
  line-height: 0.96;
  font-weight: 1000;
  letter-spacing: -0.045em;
  text-shadow: 0 4px 20px rgba(45, 23, 80, 0.28);
}

.quizkids-adventure-heading > p:last-child {
  margin: 0;
  font-size: clamp(1rem, 1.7vw, 1.25rem);
  font-weight: 800;
  opacity: 0.9;
}

.quizkids-adventure-welcome {
  display: inline-flex;
  margin: 0;
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,.42);
  border-radius: 999px;
  background: rgba(255,255,255,.16);
  backdrop-filter: blur(16px);
  font-weight: 900;
}

.quizkids-adventure-layout {
  display: grid;
  grid-template-columns: minmax(210px, 250px) minmax(0, 1fr);
  gap: 22px;
  align-items: stretch;
}

.quizkids-mission-card {
  display: flex;
  min-height: 380px;
  padding: 24px;
  flex-direction: column;
  border: 1px solid var(--qk-line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 80% 0%, rgba(247, 161, 255, .32), transparent 34%),
    linear-gradient(155deg, rgba(255,255,255,.96), rgba(245,236,255,.9));
  box-shadow: var(--qk-shadow);
  overflow: hidden;
}

.quizkids-mission-card__eyebrow {
  margin: 0 0 14px;
  color: #6b4ba3;
  font-size: .78rem;
  font-weight: 1000;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.quizkids-mission-card__score {
  display: grid;
  width: 152px;
  height: 152px;
  margin: 2px auto 16px;
  place-items: center;
  align-content: center;
  border: 9px solid rgba(255,255,255,.75);
  border-radius: 50%;
  background: linear-gradient(150deg, #ffcb74, #ff7da7 58%, #a855f7);
  color: white;
  box-shadow: 0 16px 30px rgba(172, 70, 146, .28), inset 0 2px 0 rgba(255,255,255,.6);
}

.quizkids-mission-card__score span { font-size: 1.25rem; line-height: 1; }
.quizkids-mission-card__score strong { font-size: 2.25rem; line-height: 1; }
.quizkids-mission-card__score small { max-width: 90px; font-size: .72rem; line-height: 1.05; text-align: center; }
.quizkids-mission-card__note { margin: 0 0 18px; color: var(--qk-muted); font-size: .95rem; font-weight: 800; line-height: 1.35; text-align: center; }
.quizkids-mission-card__total { display: flex; margin-top: auto; padding: 13px 0; align-items: center; justify-content: space-between; border-top: 1px solid rgba(96, 75, 136, .14); color: var(--qk-muted); font-size: .85rem; font-weight: 900; }
.quizkids-mission-card__total strong { color: var(--qk-ink); font-size: 1rem; }
.quizkids-mission-card__reward { display: grid; grid-template-columns: 1fr auto; gap: 7px 10px; margin-bottom: 10px; color: #6b4ba3; font-size: .76rem; font-weight: 1000; }
.quizkids-mission-card__reward > span { color: #9a3c75; }
.quizkids-mission-card__reward > small { color: var(--qk-muted); font-size: .7rem; }
.quizkids-mission-card__reward-track { grid-column: 1 / -1; height: 8px; overflow: hidden; border-radius: 999px; background: rgba(107,75,163,.12); }
.quizkids-mission-card__reward-track i { display: block; height: 100%; min-width: 7px; border-radius: inherit; background: linear-gradient(90deg, #ffb84d, #ec4899, #8b5cf6); }
.quizkids-mission-card__limit { padding: 10px 12px; border-radius: 14px; background: rgba(124,58,237,.09); color: #6b31c8; font-size: .8rem; font-weight: 900; text-align: center; }

.quizkids-featured-worlds {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.quizkids-world-card {
  position: relative;
  display: block;
  min-width: 0;
  min-height: 380px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.52);
  border-radius: 30px;
  background: #45206e;
  box-shadow: var(--qk-shadow);
  color: white;
  cursor: pointer;
  isolation: isolate;
  transform: translateZ(0);
  transition: transform .25s ease, box-shadow .25s ease;
}

.quizkids-world-card:hover,
.quizkids-world-card:focus-visible,
.quizkids-world-tile:hover,
.quizkids-world-tile:focus-visible {
  transform: translateY(-7px);
  box-shadow: 0 28px 70px rgba(48, 25, 91, .32);
  outline: 3px solid rgba(255,255,255,.82);
  outline-offset: 3px;
}

.quizkids-world-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.quizkids-world-card:hover img { transform: scale(1.045); }
.quizkids-world-card::after { content: ""; position: absolute; inset: 42% 0 0; z-index: 1; background: linear-gradient(transparent, rgba(19,13,43,.9)); pointer-events: none; }
.quizkids-world-card--side { grid-column: span 1; }
.quizkids-world-card--main { grid-column: span 2; }
.quizkids-world-card--side > span:last-child { position: absolute; z-index: 2; left: 12px; right: 12px; bottom: 18px; font-size: clamp(.86rem, 1.2vw, 1.1rem); font-weight: 1000; line-height: 1.05; text-align: center; text-shadow: 0 2px 12px rgba(0,0,0,.7); }
.quizkids-world-card__badge { position: absolute; z-index: 2; top: 16px; left: 16px; padding: 8px 12px; border: 1px solid rgba(255,255,255,.65); border-radius: 999px; background: linear-gradient(90deg, rgba(168,85,247,.92), rgba(236,72,153,.92)); font-size: .76rem; font-weight: 1000; box-shadow: 0 8px 20px rgba(39,20,72,.24); }
.quizkids-world-card__content { position: absolute; z-index: 2; left: 20px; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 6px; text-align: left; }
.quizkids-world-card__content strong { font-size: clamp(1.35rem, 2.15vw, 2.15rem); line-height: .98; font-weight: 1000; text-shadow: 0 3px 16px rgba(0,0,0,.58); }
.quizkids-world-card__content small { display: inline-flex; width: fit-content; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.9); color: #5a2e90; font-size: .78rem; font-weight: 1000; }

.quizkids-adventure-ad {
  position: relative;
  min-height: 102px;
  margin: 24px 0 34px;
  padding: 10px 16px;
  border: 1px solid rgba(255,255,255,.62);
  border-radius: 24px;
  background: rgba(255,255,255,.88);
  box-shadow: 0 14px 36px rgba(67, 35, 105, .14);
}

.quizkids-adventure-ad:has(.quizkids-ad-collapsed) { display: none; }
.quizkids-adventure-ad > div { margin: 0 auto !important; }
.quizkids-adventure-ad__label { position: absolute; z-index: 3; top: 7px; left: 16px; color: #928da3; font-size: .64rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.quizkids-adventure-ad--secondary { margin-top: 36px; }

.quizkids-all-worlds {
  padding: 28px;
  border: 1px solid rgba(255,255,255,.54);
  border-radius: 34px;
  background: rgba(250,243,255,.28);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 50px rgba(58, 28, 105, .15);
}

.quizkids-section-heading { display: flex; margin-bottom: 22px; align-items: end; justify-content: space-between; gap: 20px; color: white; }
.quizkids-section-heading h3 { margin: 0; font-size: clamp(2rem, 3.4vw, 3.25rem); font-weight: 1000; letter-spacing: -.035em; text-shadow: 0 3px 16px rgba(38,17,73,.25); }
.quizkids-section-heading p { max-width: 460px; margin: 0; font-size: .95rem; font-weight: 800; opacity: .88; text-align: right; }

.quizkids-world-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.quizkids-world-tile {
  position: relative;
  display: block;
  min-width: 0;
  aspect-ratio: 1 / .92;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.58);
  border-radius: 24px;
  background: rgba(255,255,255,.85);
  box-shadow: 0 14px 30px rgba(45,25,80,.17);
  cursor: pointer;
  transition: transform .24s ease, box-shadow .24s ease;
}

.quizkids-world-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.quizkids-world-tile:hover img { transform: scale(1.045); }
.quizkids-world-tile__body { position: absolute; left: 10px; right: 10px; bottom: 10px; display: flex; min-height: 54px; padding: 10px 10px 10px 13px; align-items: center; justify-content: space-between; gap: 8px; border: 1px solid rgba(255,255,255,.78); border-radius: 16px; background: rgba(255,250,252,.92); color: var(--qk-ink); backdrop-filter: blur(12px); }
.quizkids-world-tile__body strong { font-size: clamp(.8rem, 1.1vw, 1rem); line-height: 1.08; font-weight: 1000; text-align: left; }
.quizkids-world-tile__body small { display: grid; width: 30px; height: 30px; flex: 0 0 30px; place-items: center; border-radius: 50%; background: linear-gradient(145deg, var(--qk-purple), var(--qk-pink)); color: white; font-size: 1rem; font-weight: 1000; }
.quizkids-world-grid-toggle { display: none; }

.quizkids-custom-topic__image { width: 122px; height: 122px; margin: 0 auto 18px; object-fit: cover; border: 6px solid rgba(255,255,255,.72); border-radius: 32px; box-shadow: 0 16px 34px rgba(95,50,139,.22); }

/* Shared visual language for secondary screens. */
.quizkids-account-screen,
.quizkids-profile-screen,
.quizkids-game-screen,
.quizkids-result-screen,
.quizkids-pricing-screen {
  --qk-screen-card: rgba(255, 250, 252, .94);
}

.quizkids-account-screen .glass-panel,
.quizkids-profile-screen .glass-panel,
.quizkids-result-screen .glass-panel,
.quizkids-pricing-screen .glass-panel {
  border: 1px solid rgba(255,255,255,.72) !important;
  background: var(--qk-screen-card) !important;
  box-shadow: 0 20px 55px rgba(57,28,98,.18) !important;
}

.quizkids-account-screen h2,
.quizkids-profile-screen h2,
.quizkids-pricing-screen h2,
.quizkids-result-screen h2 {
  letter-spacing: -.035em;
  text-wrap: balance;
}

.quizkids-account-screen button,
.quizkids-profile-screen button,
.quizkids-pricing-screen button,
.quizkids-game-screen button,
.quizkids-result-screen button {
  min-height: 44px;
}

.quizkids-game-screen > .glass-panel {
  border: 1px solid rgba(255,255,255,.78);
  background: rgba(255,250,252,.94);
  box-shadow: 0 18px 45px rgba(54,29,91,.18);
}

.quizkids-game-screen .quizkids-game-layout > div > .glass-panel:first-child {
  position: relative;
  border: 1px solid rgba(255,255,255,.8);
  background:
    radial-gradient(circle at 15% 0%, rgba(255,211,239,.7), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(245,235,255,.94));
  box-shadow: var(--qk-shadow);
}

.quizkids-game-screen .quizkids-game-layout > div > .grid button {
  border: 1px solid rgba(255,255,255,.76);
  background-color: rgba(255,250,252,.9);
  box-shadow: 0 13px 30px rgba(54,29,91,.13);
}

.quizkids-game-screen .quizkids-game-layout > div > .grid button:not(:disabled):hover {
  border-color: rgba(157,95,240,.52);
  box-shadow: 0 18px 38px rgba(77,35,132,.2);
}

.quizkids-game-screen .fixed .glass-panel {
  border-color: rgba(255,255,255,.9) !important;
  background: rgba(255,250,252,.96) !important;
  box-shadow: 0 26px 70px rgba(38,20,70,.28) !important;
}

.quizkids-account-screen {
  max-width: 920px !important;
}

.quizkids-account-screen > h2,
.quizkids-pricing-screen h2,
.quizkids-profile-screen > h2 {
  margin-top: 14px;
  font-size: clamp(2.3rem, 5vw, 4.25rem) !important;
  text-shadow: 0 4px 18px rgba(45,20,81,.28);
}

.quizkids-account-screen .glass-panel,
.quizkids-profile-screen .glass-panel {
  border-radius: 26px !important;
}

.quizkids-account-screen input,
.quizkids-account-screen select,
.quizkids-profile-screen input,
.quizkids-profile-screen select {
  min-height: 48px;
  border: 1px solid rgba(114,89,152,.18) !important;
  background: rgba(255,255,255,.88) !important;
  box-shadow: inset 0 1px 3px rgba(65,37,100,.06);
}

.quizkids-pricing-screen > .grid article {
  border-radius: 28px !important;
  box-shadow: 0 20px 48px rgba(54,28,96,.18) !important;
}

.quizkids-pricing-screen .quizkids-plan-featured {
  transform: translateY(-8px);
  background:
    radial-gradient(circle at 80% 0%, rgba(255,199,128,.45), transparent 28%),
    linear-gradient(145deg, #7c3aed, #ec4899) !important;
}

.quizkids-profile-screen .grid.grid-cols-2 > div {
  border: 1px solid rgba(255,255,255,.7) !important;
  background: rgba(255,250,252,.9) !important;
  box-shadow: 0 14px 32px rgba(51,26,91,.13);
}

.quizkids-result-screen .glass-panel {
  background:
    radial-gradient(circle at 12% 8%, rgba(255,213,108,.38), transparent 25%),
    radial-gradient(circle at 90% 12%, rgba(192,132,252,.28), transparent 30%),
    rgba(255,250,252,.96) !important;
}

@media (max-width: 640px) {
  .quizkids-game-screen { padding: 10px !important; }
  .quizkids-game-screen > .glass-panel { margin-bottom: 16px !important; border-radius: 22px !important; }
  .quizkids-game-screen .quizkids-game-layout > div > .glass-panel:first-child { padding: 24px 18px !important; border-radius: 26px !important; }
  .quizkids-game-screen .quizkids-game-layout > div > .grid { gap: 11px !important; }
  .quizkids-game-screen .quizkids-game-layout > div > .grid button { padding: 17px 15px !important; border-radius: 20px !important; font-size: 1.2rem !important; }
  .quizkids-game-screen .quizkids-game-layout > div > .grid button > span:first-child { font-size: 1.7rem !important; }
  .quizkids-account-screen,
  .quizkids-profile-screen,
  .quizkids-pricing-screen { padding: 12px !important; }
  .quizkids-account-screen .glass-panel,
  .quizkids-profile-screen .glass-panel { padding: 18px !important; border-radius: 22px !important; }
  .quizkids-pricing-screen .quizkids-plan-featured { transform: none; }
}

@media (max-width: 1180px) {
  .quizkids-adventure-layout { grid-template-columns: 210px minmax(0, 1fr); }
  .quizkids-featured-worlds { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .quizkids-world-card--side { grid-column: span 1; min-height: 260px; }
  .quizkids-world-card--main { grid-column: 2 / span 2; grid-row: 1 / span 2; min-height: 534px; }
  .quizkids-world-card--side:nth-of-type(1), .quizkids-world-card--side:nth-of-type(2) { grid-row: 1; }
  .quizkids-world-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (max-width: 900px) {
  .quizkids-adventure-heading { margin-bottom: 22px; padding-top: 14px; }
  .quizkids-adventure-layout { display: block; }
  .quizkids-mission-card { min-height: auto; margin-bottom: 18px; padding: 17px 18px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px 16px; }
  .quizkids-mission-card__eyebrow { margin: 0; }
  .quizkids-mission-card__score { grid-row: 1 / span 3; grid-column: 2; width: 98px; height: 98px; margin: 0; border-width: 6px; }
  .quizkids-mission-card__score strong { font-size: 1.55rem; }
  .quizkids-mission-card__score small { font-size: .6rem; }
  .quizkids-mission-card__note { margin: 0; text-align: left; }
  .quizkids-mission-card__total { margin: 0; padding: 7px 0 0; }
  .quizkids-mission-card__reward { grid-column: 1 / -1; margin: 4px 0 0; }
  .quizkids-mission-card__limit { grid-column: 1 / -1; }
  .quizkids-featured-worlds { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .quizkids-world-card--main { grid-column: 1 / -1; grid-row: 1; min-height: 360px; }
  .quizkids-world-card--side { min-height: 220px; }
  .quizkids-world-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
}

@media (max-width: 640px) {
  .quizkids-adventure-home { padding-left: 12px !important; padding-right: 12px !important; }
  .quizkids-adventure-heading h2 { font-size: clamp(2.25rem, 12vw, 3.5rem); }
  .quizkids-adventure-heading > p:last-child { padding: 0 14px; font-size: .94rem; }
  .quizkids-adventure-welcome { font-size: .84rem; }
  .quizkids-mission-card { border-radius: 24px; }
  .quizkids-featured-worlds { display: flex; width: calc(100% + 12px); margin-right: -12px; padding: 2px 12px 12px 2px; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .quizkids-featured-worlds::-webkit-scrollbar { display: none; }
  .quizkids-world-card--main { order: -1; flex: 0 0 82%; min-height: 360px; scroll-snap-align: start; }
  .quizkids-world-card--side { flex: 0 0 58%; min-height: 360px; scroll-snap-align: start; }
  .quizkids-world-card--side > span:last-child { font-size: 1rem; }
  .quizkids-adventure-ad { min-height: 90px; margin: 16px 0 24px; border-radius: 20px; }
  .quizkids-all-worlds { padding: 18px 12px; border-radius: 26px; }
  .quizkids-section-heading { display: block; padding: 0 6px; }
  .quizkids-section-heading h3 { font-size: 2.25rem; }
  .quizkids-section-heading p { margin-top: 4px; font-size: .84rem; text-align: left; }
  .quizkids-world-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
  .quizkids-world-tile--mobile-extra { display: none; }
  .quizkids-world-grid-toggle { display: block; width: 100%; margin-top: 14px; padding: 14px 18px; border: 1px solid rgba(255,255,255,.72); border-radius: 16px; background: rgba(255,255,255,.9); color: #6b31c8; box-shadow: 0 10px 22px rgba(57,29,101,.14); font-size: .88rem; font-weight: 1000; }
  .quizkids-world-tile { aspect-ratio: .92 / 1; border-radius: 21px; }
  .quizkids-world-tile__body { left: 7px; right: 7px; bottom: 7px; min-height: 48px; padding: 8px 8px 8px 10px; border-radius: 14px; }
  .quizkids-world-tile__body strong { font-size: .78rem; }
  .quizkids-world-tile__body small { width: 26px; height: 26px; flex-basis: 26px; }
  .quizkids-custom-topic { margin-top: 0 !important; }
}

@media (prefers-reduced-motion: reduce) {
  .quizkids-world-card,
  .quizkids-world-card img,
  .quizkids-world-tile,
  .quizkids-world-tile img { transition: none !important; }
}