:root {
  --speed-bg: linear-gradient(180deg, rgba(233, 168, 107, 0.12), rgba(47, 72, 88, 0.08));
  --speed-card: #ffffff;
  --speed-border: rgba(47, 72, 88, 0.14);
}

body {
  overflow-x: hidden; /* Prevent horizontal scroll */
}

.matching-layout {
  display: flex;
  justify-content: center;
  padding-bottom: clamp(64px, 8vw, 96px);
  width: 100%;
  box-sizing: border-box;
}

.matching-card {
  width: 100%;
  max-width: 960px;
  background: var(--speed-bg);
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid rgba(47, 72, 88, 0.18);
  box-shadow: 0 24px 50px rgba(25, 35, 55, 0.12);
  padding: clamp(28px, 5vw, 52px);
  display: grid;
  gap: clamp(24px, 4vw, 36px);
  position: relative;
  box-sizing: border-box;
}

.matching-header h1 {
  margin: 12px 0 14px;
  font-size: clamp(28px, 4vw, 40px);
  color: var(--brand-2);
}

.matching-header .muted {
  margin: 0;
  max-width: 640px;
}

.matching-scoreboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  background: rgba(255, 255, 255, 0.78);
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid rgba(47, 72, 88, 0.18);
  padding: 18px 20px;
  box-shadow: 0 10px 26px rgba(25, 35, 55, 0.08);
  box-sizing: border-box;
  width: 100%;
}

.score-item {
  display: grid;
  gap: 6px;
  box-sizing: border-box;
}

.score-item .label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(47, 72, 88, 0.6);
  font-weight: 700;
}

.score-item .value {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-2);
}

.score-item.highlight {
  background: rgba(233, 168, 107, 0.18);
  border-radius: 12px;
  padding: 10px 14px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.countdown {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
}

.countdown.hidden {
  display: none;
}

.countdown__text {
  font-size: clamp(100px, 25vw, 180px);
  font-weight: 900;
  color: #ffffff;
  text-shadow:
    0 0 40px rgba(255, 255, 255, 0.9),
    0 0 80px rgba(233, 168, 107, 0.8),
    0 12px 48px rgba(0, 0, 0, 0.6),
    0 4px 20px rgba(0, 0, 0, 0.8);
  opacity: 0;
  letter-spacing: -0.02em;
  line-height: 1;
  text-align: center;
  width: 100%;
}

.countdown__text.countdown-animate {
  animation: countdown-pop 0.85s forwards ease-out;
}

.countdown.countdown--go {
  background: rgba(26, 157, 87, 0.92);
}

.countdown.countdown--go .countdown__text {
  color: #ffffff;
  font-size: clamp(120px, 30vw, 200px);
  text-shadow:
    0 0 60px rgba(255, 255, 255, 1),
    0 0 120px rgba(26, 157, 87, 0.9),
    0 0 200px rgba(26, 157, 87, 0.6),
    0 8px 40px rgba(0, 0, 0, 0.8),
    0 4px 20px rgba(0, 0, 0, 1);
}

@keyframes countdown-pop {
  0% {
    opacity: 0;
    transform: scale(0.3) rotate(-5deg);
  }
  15% {
    opacity: 1;
    transform: scale(1.15) rotate(2deg);
  }
  25% {
    transform: scale(1.05) rotate(-1deg);
  }
  35% {
    transform: scale(1) rotate(0deg);
  }
  70% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(0.5);
  }
}

.matching-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(22px, 5vw, 42px);
  width: 100%;
  box-sizing: border-box;
}

.matching-column {
  background: rgba(255, 255, 255, 0.86);
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid rgba(47, 72, 88, 0.14);
  box-shadow: 0 12px 28px rgba(25, 35, 55, 0.08);
  padding: clamp(18px, 3vw, 28px);
  box-sizing: border-box;
  max-width: 100%;
}

.column-title {
  margin: 0 0 14px;
  font-size: 18px;
  color: var(--brand-2);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  text-align: center;
}

.column-list {
  display: grid;
  gap: 12px;
}

.match-card {
  background: var(--speed-card);
  border-radius: 14px;
  border: 2px solid transparent;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--brand-2);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 8px 22px rgba(25, 35, 55, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  word-wrap: break-word;
  overflow-wrap: break-word;
  box-sizing: border-box;
  width: 100%;
}

.match-card:hover,
.match-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(233, 168, 107, 0.55);
  outline: none;
}

.match-card.selected {
  border-color: rgba(233, 168, 107, 0.9);
  background: rgba(233, 168, 107, 0.18);
}

.match-card.correct {
  background: rgba(26, 157, 87, 0.14);
  border-color: rgba(26, 157, 87, 0.7);
  color: #13663a;
}

.match-card.incorrect {
  background: rgba(220, 44, 44, 0.12);
  border-color: rgba(220, 44, 44, 0.7);
  color: #712424;
}

.match-card.matched {
  background: rgba(26, 157, 87, 0.12);
  border-color: rgba(26, 157, 87, 0.5);
  color: #13663a;
  cursor: default;
  box-shadow: none;
  opacity: 0.92;
}

.match-card.disabled {
  pointer-events: none;
}

.matching-feedback {
  min-height: 26px;
  font-size: 15px;
  color: var(--muted);
}

.matching-feedback.positive {
  color: var(--ok);
}

.matching-feedback.negative {
  color: #b53a3a;
}

.matching-leaderboard .col-score,
.matching-leaderboard .col-time {
  text-align: center;
}

.matching-leaderboard .leaderboard-score,
.matching-leaderboard .leaderboard-time {
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.matching-leaderboard .leaderboard-streak,
.matching-leaderboard .leaderboard-words {
  display: none;
}

.leaderboard {
  background: rgba(255, 255, 255, 0.95);
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid rgba(47, 72, 88, 0.14);
  box-shadow: 0 16px 36px rgba(25, 35, 55, 0.1);
  padding: clamp(20px, 3.5vw, 30px);
  display: grid;
  gap: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
  box-sizing: border-box;
}

.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.leaderboard-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--brand-2);
}

.leaderboard-columns,
.leaderboard-item {
  display: grid;
  grid-template-columns: 40px 1fr 90px 110px 90px;
  gap: 12px;
  align-items: center;
}

.leaderboard-columns {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: rgba(47, 72, 88, 0.6);
  font-weight: 700;
}

.leaderboard-columns > div {
  text-align: center;
}

.col-name {
  text-align: left !important;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.leaderboard-item {
  background: rgba(255, 255, 255, 0.98);
  border-radius: 14px;
  border: 1px solid rgba(47, 72, 88, 0.1);
  padding: 10px 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.leaderboard-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(25, 35, 55, 0.12);
}

.leaderboard-rank {
  font-weight: 700;
  font-size: 16px;
  color: var(--brand-2);
  text-align: center;
}

.leaderboard-name {
  font-weight: 600;
  color: var(--brand-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-score,
.leaderboard-time,
.leaderboard-date {
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

.leaderboard-date {
  text-align: right;
}

.leaderboard-empty {
  text-align: center;
  padding: 18px 16px;
  border-radius: 12px;
  border: 1px dashed rgba(47, 72, 88, 0.2);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .matching-card {
    padding: 24px 18px;
  }

  .matching-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .matching-scoreboard {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 12px;
    padding: 16px 18px;
  }

  .score-item .label {
    font-size: 11px;
  }

  .score-item .value {
    font-size: 18px;
  }

  .match-card {
    padding: 16px 20px;
    font-size: 17px;
    min-height: 56px; /* Touch-friendly size */
  }

  /* Countdown optimizations for mobile */
  .countdown__text {
    font-size: clamp(90px, 23vw, 150px);
  }

  .countdown.countdown--go .countdown__text {
    font-size: clamp(110px, 28vw, 170px);
  }
}

@media (max-width: 640px) {
  .matching-card {
    padding: 20px 14px;
  }

  .matching-grid {
    gap: 24px;
  }

  .matching-scoreboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 14px 16px;
  }

  .score-item .label {
    font-size: 10px;
  }

  .score-item .value {
    font-size: 16px;
  }

  .match-card {
    padding: 14px 18px;
    font-size: 16px;
    min-height: 54px;
  }

  .column-title {
    font-size: 16px;
    margin-bottom: 12px;
  }

  /* Leaderboard responsive */
  .leaderboard-columns,
  .leaderboard-item {
    grid-template-columns: 32px 1fr 70px 90px 70px;
    gap: 8px;
    min-width: 0; /* Remove min-width to prevent horizontal scroll */
  }

  .leaderboard {
    padding: 16px 14px;
  }

  .leaderboard-rank {
    font-size: 14px;
  }

  .leaderboard-name {
    font-size: 13px;
  }

  .leaderboard-score,
  .leaderboard-time,
  .leaderboard-date {
    font-size: 12px;
  }

  .leaderboard-columns {
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .matching-card {
    padding: 18px 12px;
  }

  .matching-header h1 {
    font-size: 24px;
    line-height: 1.2;
  }

  .matching-scoreboard {
    gap: 8px;
    padding: 12px 14px;
  }

  .score-item {
    gap: 4px;
  }

  .score-item .label {
    font-size: 9px;
  }

  .score-item .value {
    font-size: 15px;
  }

  .score-item.highlight {
    padding: 8px 10px;
  }

  .match-card {
    padding: 12px 16px;
    font-size: 15px;
    min-height: 52px;
  }

  .matching-column {
    padding: 16px;
  }

  .column-list {
    gap: 10px;
  }

  /* Countdown for smaller phones */
  .countdown__text {
    font-size: clamp(80px, 22vw, 140px);
  }

  .countdown.countdown--go .countdown__text {
    font-size: clamp(100px, 27vw, 160px);
  }
}

  /* Leaderboard ultra compact */
  .leaderboard-columns,
  .leaderboard-item {
    grid-template-columns: 28px 1fr 60px 80px 60px;
    gap: 6px;
  }

  .leaderboard {
    padding: 14px 10px;
  }

  .leaderboard-item {
    padding: 8px 10px;
  }

  .leaderboard-rank {
    font-size: 13px;
  }

  .leaderboard-name {
    font-size: 12px;
  }

  .leaderboard-score,
  .leaderboard-time,
  .leaderboard-date {
    font-size: 11px;
  }

  .leaderboard-columns {
    font-size: 9px;
  }

  .leaderboard-title {
    font-size: 16px;
  }
}

@media (max-width: 360px) {
  .matching-card {
    padding: 16px 10px;
  }

  .matching-scoreboard {
    gap: 6px;
    padding: 10px 12px;
  }

  .score-item .label {
    font-size: 8px;
  }

  .score-item .value {
    font-size: 14px;
  }

  .match-card {
    padding: 10px 14px;
    font-size: 14px;
    min-height: 48px;
  }

  .matching-column {
    padding: 14px;
  }

  .column-title {
    font-size: 15px;
  }

  /* Countdown for very small phones */
  .countdown__text {
    font-size: clamp(70px, 20vw, 120px);
  }

  .countdown.countdown--go .countdown__text {
    font-size: clamp(90px, 25vw, 140px);
  }
}

  /* Leaderboard extra compact */
  .leaderboard-columns,
  .leaderboard-item {
    grid-template-columns: 24px 1fr 50px 70px 50px;
    gap: 4px;
  }

  .leaderboard {
    padding: 12px 8px;
  }

  .leaderboard-item {
    padding: 6px 8px;
    border-radius: 10px;
  }

  .leaderboard-rank {
    font-size: 12px;
  }

  .leaderboard-name {
    font-size: 11px;
  }

  .leaderboard-score,
  .leaderboard-time,
  .leaderboard-date {
    font-size: 10px;
  }

  .leaderboard-columns {
    font-size: 8px;
  }

  .leaderboard-title {
    font-size: 14px;
  }
}

.matching-leaderboard .leaderboard-time {
  font-variant-numeric: tabular-nums;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(22, 24, 29, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  z-index: 1000;
  backdrop-filter: blur(6px);
}

.overlay.hidden {
  display: none;
}

.overlay__card {
  background: #fffdf9;
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid rgba(47, 72, 88, 0.16);
  box-shadow: 0 24px 48px rgba(22, 24, 29, 0.24);
  padding: clamp(26px, 4vw, 40px);
  max-width: 520px;
  width: min(100%, 520px);
  display: grid;
  gap: 18px;
  text-align: center;
}

.overlay__card h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 30px);
  color: var(--brand-2);
}

.overlay__card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.overlay__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.overlay__actions .btn {
  min-width: 160px;
}

.overlay__card--small {
  max-width: 420px;
}

.overlay__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.overlay__stats .stat {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 14px;
  border: 1px solid rgba(47, 72, 88, 0.16);
  padding: 16px 18px;
  display: grid;
  gap: 8px;
}

.overlay__stats .stat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(47, 72, 88, 0.6);
  font-weight: 600;
}

.overlay__stats .stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--brand-2);
}

.leaderboard-input-group {
  margin: 20px 0;
}

.leaderboard-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(47, 72, 88, 0.22);
  font-size: 16px;
  font-family: inherit;
}

.leaderboard-input:focus-visible {
  outline: none;
  border-color: rgba(233, 168, 107, 0.8);
  box-shadow: 0 0 0 3px rgba(233, 168, 107, 0.2);
}

.leaderboard-congrats {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}