:root {
  --color-bg: #101213;
  --color-tile-bg: #121213;
  --color-text: #f8f8f8;
  --color-border: #3a3a3c;
  --color-correct: #538d4e;
  --color-present: #b59f3b;
  --color-absent: #3a3a3c;
  --color-keyboard-bg: #1f1f22;
  --color-keyboard-text: #f2f2f2;
  --color-keyboard-border: #56575a;
  --modal-bg: #1f2326;
}

[data-theme="light"] {
  --color-bg: #fafafa;
  --color-tile-bg: #ffffff;
  --color-text: #0f1112;
  --color-border: #d3d6da;
  --color-correct: #6aaa64;
  --color-present: #c9b458;
  --color-absent: #787c7e;
  --color-keyboard-bg: #d4d6da;
  --color-keyboard-text: #202020;
  --color-keyboard-border: #adb0b5;
  --modal-bg: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Roboto", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.top-bar h1 {
  font-size: 1.4rem;
  margin: 0;
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: inherit;
}

.info-btn,
.theme-toggle {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-tile-bg);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.info-btn:hover,
.theme-toggle:hover {
  transform: scale(1.05);
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.5rem;
  gap: 1.5rem;
  flex: 1;
}

.board {
  display: grid;
  gap: 0.5rem;
}

.row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.tile {
  width: clamp(50px, 10vw, 65px);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-border);
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  text-transform: uppercase;
  font-weight: 700;
  background-color: var(--color-tile-bg);
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.tile.filled {
  border-color: var(--color-border);
}

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

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

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

.tile.reveal {
  animation: flip 0.6s ease;
}

@keyframes flip {
  0% {
    transform: rotateX(0deg);
  }
  50% {
    transform: rotateX(90deg);
  }
  100% {
    transform: rotateX(0deg);
  }
}

.keyboard {
  display: grid;
  gap: 0.5rem;
  width: min(500px, 100%);
}

.keyboard-row {
  display: grid;
  grid-auto-flow: column;
  gap: 0.5rem;
  justify-content: center;
}

.key {
  padding: 0.75rem 0.5rem;
  border-radius: 0.5rem;
  background-color: var(--color-keyboard-bg);
  border: 1px solid var(--color-keyboard-border);
  color: var(--color-keyboard-text);
  font-weight: 500;
  text-transform: uppercase;
  user-select: none;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.key.wide {
  grid-column: span 1;
  padding-inline: 1rem;
}

.keyboard-row:nth-child(2) {
  padding-inline: 1rem;
}

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

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

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

.key:active {
  transform: scale(0.97);
}

.modal {
  background-color: var(--modal-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1.5rem;
  max-width: 420px;
  width: min(90vw, 420px);
  box-shadow: 0 20px 40px rgb(15 17 18 / 0.4);
}

.modal::backdrop {
  background-color: rgba(0, 0, 0, 0.65);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  font-size: 1.25rem;
  border: none;
  cursor: pointer;
  color: inherit;
}

.example {
  font-weight: 600;
  padding: 0 0.2rem;
  border-radius: 0.2rem;
}

.example-correct {
  background-color: var(--color-correct);
}

.example-present {
  background-color: var(--color-present);
}

.example-absent {
  background-color: var(--color-absent);
}

.toast {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--modal-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: 0 20px 40px rgb(15 17 18 / 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.toast.show {
  opacity: 1;
}

@media (max-width: 480px) {
  .top-bar h1 {
    font-size: 1.2rem;
  }

  .key {
    padding: 0.6rem 0.4rem;
  }
}

.share-textarea {
  width: 100%;
  min-height: 110px;
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-tile-bg);
  color: var(--color-text);
  padding: 0.75rem;
  font-family: "Roboto", monospace;
  font-size: 0.95rem;
  resize: vertical;
  margin: 0.75rem 0;
}

.share-btn {
  width: 100%;
  padding: 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-correct);
  color: var(--color-text);
  font-weight: 600;
  transition: transform 0.1s ease, filter 0.2s ease;
}

.share-btn:hover {
  filter: brightness(1.05);
}

.share-btn:active {
  transform: scale(0.98);
}