.gft-mu-hub,
.gft-mu-topic {
  --gft-mu-ink: #20352f;
  --gft-mu-muted: #66756f;
  --gft-mu-green: #27634e;
  --gft-mu-green-dark: #1b4838;
  --gft-mu-orange: #e68145;
  --gft-mu-paper: #f6f5ef;
  --gft-mu-line: #e0e5de;
  color: var(--gft-mu-ink);
  font: inherit;
}

.gft-mu-hub *,
.gft-mu-topic * { box-sizing: border-box; }

.gft-mu-intro {
  max-width: 760px;
  margin: 0 auto 2rem;
  text-align: center;
}

.gft-mu-intro h2,
.gft-mu-related h2 {
  margin: .15rem 0 .7rem;
  color: var(--gft-mu-ink);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.12;
}

.gft-mu-intro > p:last-child,
.gft-mu-topic-intro > p:not(.gft-mu-kicker) {
  color: var(--gft-mu-muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.gft-mu-kicker,
.gft-mu-game-label {
  margin: 0;
  color: var(--gft-mu-green);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.gft-mu-topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.gft-mu-topic-card,
.gft-mu-related-card {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  padding: 1.25rem;
  border: 1px solid var(--gft-mu-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 7px 24px rgb(23 48 38 / 5%);
}

.gft-mu-card-topline {
  display: flex;
  justify-content: space-between;
  color: var(--gft-mu-green);
  font-size: .78rem;
  font-weight: 750;
}

.gft-mu-card-topline span:last-child { color: var(--gft-mu-orange); font-size: 1.1rem; }
.gft-mu-topic-card h3 { margin: .8rem 0 .45rem; font-size: 1.18rem; line-height: 1.25; }
.gft-mu-topic-card p { margin: 0 0 1rem; color: var(--gft-mu-muted); font-size: .94rem; line-height: 1.5; }

.gft-mu-link,
.gft-mu-text-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: .4rem;
  margin-top: auto;
  color: var(--gft-mu-green-dark);
  font-weight: 800;
  text-decoration: none;
}

.gft-mu-link:hover,
.gft-mu-text-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.gft-mu-hub-note { margin: 1.25rem 0 0; color: var(--gft-mu-muted); text-align: center; font-size: .9rem; }

.gft-mu-topic-intro { margin: 0 0 1.5rem; }
.gft-mu-topic-intro > p:not(.gft-mu-kicker) { max-width: 760px; margin: .5rem 0 1rem; }
.gft-mu-actions { display: flex; flex-wrap: wrap; gap: .65rem; }

.gft-mu-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .7rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color .16s ease, transform .16s ease, border-color .16s ease;
}

.gft-mu-button:hover { transform: translateY(-1px); }
.gft-mu-button-primary { background: var(--gft-mu-green); color: #fff !important; }
.gft-mu-button-primary:hover { background: var(--gft-mu-green-dark); }
.gft-mu-button-quiet { border-color: var(--gft-mu-line); background: #fff; color: var(--gft-mu-ink) !important; }
.gft-mu-button:focus-visible,
.gft-mu-tile:focus-visible,
.gft-mu-link:focus-visible,
.gft-mu-text-link:focus-visible { outline: 3px solid var(--gft-mu-orange); outline-offset: 3px; }

.gft-mu-game {
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--gft-mu-line);
  border-radius: 22px;
  background: var(--gft-mu-paper);
}

.gft-mu-game-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.gft-mu-game-header h2 { margin: .25rem 0 0; font-size: clamp(1.3rem, 2.5vw, 1.8rem); line-height: 1.2; }
.gft-mu-score { display: flex; min-width: 78px; flex-direction: column; align-items: center; padding: .45rem .7rem; border-radius: 14px; background: #fff; color: var(--gft-mu-green-dark); }
.gft-mu-score strong { font-size: 1.25rem; line-height: 1.15; }
.gft-mu-score span { font-size: .68rem; font-weight: 750; }
.gft-mu-progress { height: 7px; margin: 1rem 0 .7rem; overflow: hidden; border-radius: 99px; background: #e0e5de; }
.gft-mu-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--gft-mu-orange); transition: width .2s ease; }
.gft-mu-status { min-height: 1.5em; margin: 0 0 .8rem; color: var(--gft-mu-muted); font-size: .9rem; font-weight: 650; }
.gft-mu-board { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.gft-mu-column h3 { margin: 0 0 .55rem; color: var(--gft-mu-muted); font-size: .77rem; letter-spacing: .08em; text-transform: uppercase; }
.gft-mu-tiles { display: grid; gap: .55rem; }

.gft-mu-tile {
  width: 100%;
  min-height: 58px;
  padding: .75rem .9rem;
  border: 1px solid var(--gft-mu-line);
  border-radius: 12px;
  background: #fff;
  color: var(--gft-mu-ink);
  cursor: pointer;
  font: inherit;
  font-size: .92rem;
  line-height: 1.4;
  text-align: left;
  transition: border-color .15s ease, background-color .15s ease, transform .15s ease, opacity .15s ease;
}

.gft-mu-tile:hover:not(:disabled) { border-color: #9cb7a8; transform: translateY(-1px); }
.gft-mu-tile.is-selected { border-color: var(--gft-mu-green); background: #e8f2ec; box-shadow: inset 0 0 0 1px var(--gft-mu-green); }
.gft-mu-tile.is-matched { border-color: #9cc3a8; background: #e7f3e8; color: #355d40; cursor: default; }
.gft-mu-tile.is-wrong { border-color: #c86654; background: #fff0ed; animation: gft-mu-nudge .22s ease-in-out 2; }
.gft-mu-tile:disabled { opacity: .72; }
.gft-mu-game-footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1rem; color: var(--gft-mu-muted); font-size: .85rem; }
.gft-mu-game.is-complete { border-color: #accab5; }

.gft-mu-related { margin-top: 2.5rem; }
.gft-mu-related-heading { margin-bottom: .9rem; }
.gft-mu-related-heading h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
.gft-mu-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.gft-mu-related-card { min-height: 190px; }
.gft-mu-related-card h3 { margin: 0 0 .55rem; font-size: 1.05rem; line-height: 1.3; }
.gft-mu-related-card h3 a { color: var(--gft-mu-ink); text-decoration: none; }
.gft-mu-related-card p { margin: 0 0 1rem; color: var(--gft-mu-muted); font-size: .9rem; line-height: 1.5; }
.gft-mu-text-link { font-size: .88rem; }

@keyframes gft-mu-nudge {
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

@media (max-width: 800px) {
  .gft-mu-topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gft-mu-related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .gft-mu-topic-grid,
  .gft-mu-related-grid { grid-template-columns: 1fr; }
  .gft-mu-board { grid-template-columns: 1fr; }
  .gft-mu-game-header { align-items: flex-start; }
  .gft-mu-score { min-width: 64px; }
  .gft-mu-game-footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .gft-mu-hub *, .gft-mu-topic * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}