:root {
  font-family: system-ui, sans-serif;
  color: #202124;
  background: #f4f5f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

main {
  width: min(100% - 2rem, 32rem);
  margin: 2rem auto;
  text-align: center;
}

h1 {
  margin: 0;
}

.title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
}

.show-tutorial {
  padding: 0.35rem 0.65rem !important;
  font-size: 0.9rem !important;
}

.instructions {
  margin-top: 0;
}

.score {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0 0.75rem;
}

.board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
  aspect-ratio: 1;
}

.tile {
  position: relative;
  min-width: 0;
  border: 2px solid #4b5563;
  border-radius: 0.4rem;
  color: #202124;
  background: white;
  font: inherit;
  font-size: clamp(1.25rem, 8vw, 2rem);
  font-weight: 700;
  cursor: pointer;
}

.tile.covered {
  border-color: #14532d;
  color: white;
  background: #2f7d4a;
}

.tile.covered::after {
  content: "✓";
  position: absolute;
  top: 0.15rem;
  right: 0.25rem;
  font-size: 0.65rem;
  line-height: 1;
}

.tile.selected {
  border-color: #205cc5;
  color: #202124;
  background: #dbeafe;
  outline: 2px solid #205cc5;
}

.tile.wildcard {
  border-style: dashed;
}

.tile:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid #111827;
  outline-offset: 2px;
}

.word-panel {
  margin-top: 1rem;
}

.current-word {
  min-height: 2.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.wildcard-control {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.wildcard-control[hidden] {
  display: none;
}

.wildcard-control input {
  width: 2.5rem;
  padding: 0.25rem;
  text-align: center;
  text-transform: uppercase;
  font: inherit;
  font-weight: 700;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

button:not(.tile) {
  padding: 0.55rem 0.9rem;
  border: 1px solid #6b7280;
  border-radius: 0.35rem;
  background: white;
  font: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: default;
  opacity: 0.5;
}

.message {
  min-height: 1.5rem;
  padding: 0.25rem;
  border: 1px solid transparent;
  border-radius: 0.35rem;
}

.message.error {
  color: #a11b1b;
  border-color: #dc2626;
  background: #fee2e2;
  font-weight: 700;
}

.message.success {
  color: #176b35;
}

.reveal-answer,
#share-result {
  margin-top: 0.5rem;
}

.revealed-answer {
  margin: 1rem 0;
  padding: 0.75rem;
  border: 1px solid #9ca3af;
  border-radius: 0.4rem;
  background: white;
}

.revealed-answer h2 {
  margin: 0 0 0.25rem;
  font-size: 1.15rem;
}

.revealed-answer p {
  margin: 0.35rem 0;
}

.answer-words {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.answer-word.active {
  border-color: #205cc5;
  background: #dbeafe;
  font-weight: 700;
}

.answer-help {
  font-size: 0.9rem;
}

.reveal-warning,
.result-dialog,
.tutorial-dialog {
  max-width: min(24rem, calc(100% - 2rem));
  padding: 1.25rem;
  border: 1px solid #6b7280;
  border-radius: 0.5rem;
  text-align: center;
}

.reveal-warning::backdrop,
.result-dialog::backdrop,
.tutorial-dialog::backdrop {
  background: rgb(0 0 0 / 45%);
}

.reveal-warning h2 {
  margin-top: 0;
}

.result-dialog {
  position: relative;
  width: min(22rem, calc(100% - 2rem));
}

.result-dialog h2 {
  margin: 0 2rem 0.75rem;
}

.close-result-dialog {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  min-width: 2.25rem;
  min-height: 2.25rem;
  padding: 0.1rem !important;
  font-size: 1.5rem !important;
  line-height: 1 !important;
}

.result-dialog-summary {
  margin: 0.5rem 0 1rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.result-share-status {
  min-height: 1.5rem;
  margin: 0.75rem 0 0;
}

.manual-share {
  margin-top: 0.75rem;
  text-align: left;
}

.manual-share[hidden] {
  display: none;
}

.manual-share label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 700;
}

.manual-share textarea {
  width: 100%;
  padding: 0.5rem;
  resize: vertical;
  font: inherit;
}

.tutorial-dialog {
  width: min(42rem, calc(100% - 2rem));
  max-width: min(42rem, calc(100% - 2rem));
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  padding: 1.25rem;
  text-align: left;
}

.tutorial-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.tutorial-header h2 {
  margin: 0;
  font-size: 1.45rem;
}

.tutorial-eyebrow {
  margin: 0 0 0.15rem;
  color: #4b5563;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.close-tutorial {
  flex: 0 0 auto;
  min-width: 2.5rem;
  min-height: 2.5rem;
  padding: 0.2rem !important;
  font-size: 1.6rem !important;
  line-height: 1 !important;
}

.tutorial-description {
  min-height: 3rem;
  margin: 0.75rem 0;
  line-height: 1.4;
}

.tutorial-example {
  padding: 0.75rem;
  border: 1px solid #9ca3af;
  border-radius: 0.5rem;
  background: #f4f5f7;
  text-align: center;
}

.tutorial-score {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  margin-bottom: 0.65rem;
  font-size: 0.85rem;
}

.tutorial-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
  width: min(100%, 20rem);
  margin: 0 auto;
  aspect-ratio: 1;
}

.tutorial-path {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.tutorial-path line {
  stroke: #1d4ed8;
  stroke-linecap: round;
  stroke-width: 2.4;
}

.tutorial-board.optimal .tutorial-path line {
  stroke: #6d28d9;
}

.tutorial-tile {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  min-width: 0;
  border: 2px solid #4b5563;
  border-radius: 0.35rem;
  color: #202124;
  background: white;
  font-size: clamp(1rem, 5vw, 1.45rem);
  font-weight: 700;
}

.tutorial-tile.covered {
  border-color: #14532d;
  color: white;
  background: #2f7d4a;
}

.tutorial-tile.covered::after {
  content: "✓";
  position: absolute;
  top: 0.1rem;
  right: 0.18rem;
  font-size: 0.55rem;
  line-height: 1;
}

.tutorial-tile.selected {
  border-color: #1d4ed8;
  color: #111827;
  background: #dbeafe;
  outline: 2px solid #1d4ed8;
}

.tutorial-board.optimal .tutorial-tile.selected {
  border-color: #6d28d9;
  background: #ede9fe;
  outline-color: #6d28d9;
}

.tutorial-tile.wildcard {
  border-style: dashed;
}

.tutorial-tile .path-order {
  position: absolute;
  bottom: 0.08rem;
  left: 0.16rem;
  font-size: 0.55rem;
  line-height: 1;
}

.tutorial-tile .wildcard-symbol {
  position: absolute;
  top: 0.08rem;
  left: 0.16rem;
  font-size: 0.55rem;
  line-height: 1;
}

.tutorial-current-word {
  min-height: 1.5rem;
  margin: 0.55rem 0 0;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.tutorial-word-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  min-height: 1.75rem;
  margin-top: 0.45rem;
}

.tutorial-word-chip {
  padding: 0.2rem 0.45rem;
  border: 1px solid #6b7280;
  border-radius: 999px;
  background: white;
  font-size: 0.75rem;
  font-weight: 700;
}

.tutorial-word-chip.replaced {
  color: #7f1d1d;
  border-color: #b91c1c;
  background: #fee2e2;
  text-decoration: line-through;
}

.tutorial-word-chip.optimal {
  color: #4c1d95;
  border-color: #7c3aed;
  background: #ede9fe;
}

.tutorial-progress-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.75rem;
  color: #4b5563;
  font-size: 0.85rem;
}

.tutorial-progress-row[hidden] {
  display: none;
}

.tutorial-progress {
  display: flex;
  gap: 0.3rem;
}

.tutorial-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #d1d5db;
}

.tutorial-dot.current {
  background: #1d4ed8;
}

.tutorial-actions {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.tutorial-actions button {
  min-width: 5.5rem;
}

#tutorial-next {
  margin-left: auto;
  border-color: #1d4ed8;
  color: white;
  background: #1d4ed8;
  font-weight: 700;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  width: min(100% - 2rem, 32rem);
  margin: 2rem auto 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #d1d5db;
  font-size: 17px;
}

.site-footer a {
  color: inherit;
}

@media (max-width: 30rem) {
  main {
    width: min(100% - 1rem, 32rem);
    margin: 1rem auto;
  }

  .title-row {
    gap: 0.6rem;
  }

  .brand-mark {
    width: 1.75rem;
    height: 1.75rem;
  }

  .site-footer {
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    width: min(100% - 1rem, 32rem);
  }

  .tutorial-dialog {
    width: calc(100% - 1rem);
    max-width: calc(100% - 1rem);
    max-height: calc(100dvh - 1rem);
    padding: 0.85rem;
  }

  .tutorial-description {
    min-height: 0;
  }

  .tutorial-example {
    padding: 0.55rem;
  }

  .tutorial-score {
    grid-template-columns: repeat(2, 1fr);
  }

  .tutorial-board {
    width: min(100%, 17.5rem);
  }
}