:root {
  --page: #121213;
  --panel: #1f2023;
  --panel-border: #3a3a3c;
  --text: #f8f8f8;
  --muted: #b7b7ba;
  --empty: #121213;
  --absent: #3a3a3c;
  --present: #b59f3b;
  --correct: #538d4e;
  --key: #818384;
  --focus: #d7dadc;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: radial-gradient(circle at top, #2c2d31 0, var(--page) 42rem);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
}

button,
input {
  font: inherit;
}

.game-shell {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding: 2rem 1rem;
  width: 100%;
}

.site-header {
  margin-bottom: 1.5rem;
  text-align: center;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: clamp(2.1rem, 8vw, 3.7rem);
  letter-spacing: .01em;
  line-height: 1.02;
}

.intro {
  max-width: 34rem;
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: 1rem;
}

.game-card {
  width: min(100%, 34rem);
  margin: 0 auto;
  padding: clamp(1rem, 4vw, 2rem);
  border: 1px solid var(--panel-border);
  border-radius: 1.35rem;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  box-shadow: 0 1.5rem 5rem rgb(0 0 0 / 38%);
}

.toast {
  min-height: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-weight: 700;
  text-align: center;
}

.toast:not(:empty) {
  animation: pop .18s ease-out;
}

.board {
  display: grid;
  gap: .42rem;
  margin: 0 auto 1.3rem;
}

.row {
  display: grid;
  gap: .42rem;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
}

.tile {
  display: grid;
  min-height: clamp(3.1rem, 13vw, 4.35rem);
  place-items: center;
  border: 2px solid var(--panel-border);
  background: var(--empty);
  color: var(--text);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: clamp(1.65rem, 7vw, 2.35rem);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.tile.filled {
  border-color: #565758;
  animation: press .08s ease-out;
}

.tile.correct,
.tile.present,
.tile.absent {
  border-color: transparent;
  transform-origin: center;
  animation: flip .42s ease-out both;
}

.tile.correct {
  background: var(--correct);
}

.tile.present {
  background: var(--present);
}

.tile.absent {
  background: var(--absent);
}

.guess-form {
  display: grid;
  gap: .75rem;
  grid-template-columns: 1fr auto;
  margin-bottom: .9rem;
}

.guess-form input {
  width: 100%;
  border: 2px solid var(--panel-border);
  border-radius: .45rem;
  background: #0f1011;
  color: var(--text);
  padding: .85rem 1rem;
  text-transform: uppercase;
}

.guess-form input:focus {
  border-color: var(--focus);
  outline: none;
}

.guess-form button,
.restart-button {
  border: 0;
  border-radius: .45rem;
  background: var(--correct);
  color: var(--text);
  cursor: pointer;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-weight: 800;
  padding: .85rem 1rem;
  text-transform: uppercase;
}

.guess-form button:hover,
.restart-button:hover {
  filter: brightness(1.08);
}

.hint {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: .94rem;
  text-align: center;
}

.keyboard {
  display: grid;
  gap: .35rem;
}

.keyboard-row {
  display: flex;
  gap: .35rem;
  justify-content: center;
}

.key {
  min-width: 1.8rem;
  border-radius: .25rem;
  background: var(--key);
  color: var(--text);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: .82rem;
  font-weight: 800;
  padding: .52rem .38rem;
  text-align: center;
}

.key.correct {
  background: var(--correct);
}

.key.present {
  background: var(--present);
}

.key.absent {
  background: var(--absent);
}

.restart-button {
  display: block;
  margin: 1.25rem auto 0;
}

.restart-button[hidden] {
  display: none;
}

.visually-hidden {
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

@keyframes flip {
  0% {
    transform: rotateX(0);
  }
  48% {
    transform: rotateX(90deg);
  }
  100% {
    transform: rotateX(0);
  }
}

@keyframes press {
  50% {
    transform: scale(.94);
  }
}

@keyframes pop {
  50% {
    transform: scale(1.04);
  }
}

@media (max-width: 34rem) {
  .game-shell {
    align-content: start;
    padding: .85rem .65rem 1rem;
  }

  .site-header {
    margin-bottom: .85rem;
  }

  h1 {
    font-size: clamp(1.75rem, 8.8vw, 2.65rem);
    max-width: 12ch;
  }

  .intro {
    font-size: .92rem;
    margin-top: .65rem;
  }

  .game-card {
    border-radius: .9rem;
    padding: .85rem;
  }

  .toast {
    min-height: 1.8rem;
    margin-bottom: .65rem;
  }

  .board {
    gap: .32rem;
    margin-bottom: .9rem;
  }

  .row {
    gap: .32rem;
  }

  .tile {
    min-height: clamp(2.55rem, 12vw, 3.2rem);
    font-size: clamp(1.35rem, 6.5vw, 1.9rem);
  }

  .guess-form {
    gap: .55rem;
    grid-template-columns: 1fr;
  }

  .guess-form input,
  .guess-form button,
  .restart-button {
    padding: .72rem .85rem;
  }

  .hint {
    margin-bottom: .9rem;
    font-size: .86rem;
  }

  .keyboard {
    gap: .25rem;
  }

  .keyboard-row {
    gap: .25rem;
  }

  .key {
    min-width: 1.32rem;
    font-size: .74rem;
    padding: .44rem .18rem;
  }
}