/* Word Search - dark theme, mobile first. Board colors in src/palette.js match these tokens. */
:root {
  color-scheme: dark;
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-raised: #283548;
  --line: #334155;
  --line-strong: #475569;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #fde68a;
  --accent-strong: #fcd34d;
  --accent-ink: #0f172a;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(2 6 23 / 0.4), 0 10px 30px rgb(2 6 23 / 0.35);
  --speed: 200ms;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}

button,
select {
  font: inherit;
  color: inherit;
}

/* Header */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 12px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 auto 0 0;
  font-size: 1.2rem;
  font-weight: 750;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand-mark {
  flex: none;
  width: 32px;
  height: 32px;
}

.actions {
  display: flex;
  gap: 6px;
}

/* Buttons and selects */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 40px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--speed) ease, border-color var(--speed) ease,
    color var(--speed) ease, transform var(--speed) ease, opacity var(--speed) ease;
}

.btn:hover {
  border-color: var(--line-strong);
  background: var(--surface-raised);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: default;
  transform: none;
}

.btn-accent {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-accent:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.btn-lang {
  padding: 0 10px;
  letter-spacing: 0.05em;
}

.btn .icon {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.btn:focus-visible,
.select:focus-visible,
.footer a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.select {
  width: 100%;
  min-height: 42px;
  padding: 0 40px 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-raised) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%2394a3b8' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 14px center / 12px 8px;
  font-size: 0.95rem;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  touch-action: manipulation;
  transition: border-color var(--speed) ease;
}

.select:hover {
  border-color: var(--line-strong);
}

.select option {
  background: var(--surface);
  color: var(--text);
}

/* Layout: one column on phones (board, then the words right under it), two from 860px */
.layout {
  --board-size: min(100%, 640px, max(300px, calc(100vh - 220px)));
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 12px;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 4px 16px 16px;
}

@supports (height: 100dvh) {
  .layout {
    --board-size: min(100%, 640px, max(300px, calc(100dvh - 220px)));
  }
}

.play,
.side {
  justify-self: center;
  width: var(--board-size);
}

@media (min-width: 860px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 24px;
  }

  .side {
    justify-self: stretch;
    width: auto;
  }
}

/* As wide as the board; the stat bar adapts to that width */
.play {
  container-type: inline-size;
  display: grid;
  gap: 12px;
}

/* Timer, counters and hint */
.statbar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat {
  display: grid;
  gap: 2px;
  min-width: 64px;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--surface);
  line-height: 1.15;
}

.stat-label {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-value {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.hint-btn {
  margin-left: auto;
}

/* Phone-sized boards: tighter counters; below about 340px of screen an icon-only hint button */
@container (max-width: 400px) {
  .statbar {
    gap: 6px;
  }

  .stat {
    min-width: 0;
    padding: 6px 9px;
  }
}

@container (max-width: 310px) {
  /* Hidden from view, still the button's accessible name */
  .hint-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

/* Board: the only element that takes over touch gestures */
.board {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board canvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.board canvas:focus {
  outline: none;
}

.board canvas:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Side panel: word list with the status line, and settings */
.side {
  display: grid;
  align-content: start;
  gap: 16px;
  min-width: 0;
}

.card {
  padding: 16px;
  border: 1px solid rgb(148 163 184 / 0.12);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card-title {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.words {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.word {
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--surface-raised);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  transition: background-color var(--speed) ease, color var(--speed) ease;
}

.word.is-found {
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--muted);
  text-decoration-line: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--word-color);
}

.word.is-found::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--word-color);
  vertical-align: 1px;
}

/* Two lines reserved, so the settings below do not jump when the message changes */
.status {
  min-height: 3em;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* One column: tighter spacing and a compact word card, so the whole list fits under the board on a phone */
@media (max-width: 859px) {
  .layout,
  .play {
    gap: 10px;
  }

  .side {
    gap: 12px;
  }

  .words-card {
    padding: 10px 14px 12px;
  }

  .words-card .card-title {
    margin-bottom: 6px;
    font-size: 1rem;
  }

  .words {
    gap: 6px;
  }

  .word {
    padding: 3px 9px;
    font-size: 0.82rem;
  }

  /* No reserved second line on phones: keeps the status inside the fold on the 15x15 grid */
  .status {
    min-height: 0;
    margin-top: 6px;
  }
}

/* Short landscape screens (phones turned sideways): board left, words and settings right */
@media (orientation: landscape) and (max-height: 520px) and (min-width: 560px) and (max-width: 859px) {
  .layout {
    --board-size: max(180px, min(calc(100vw - 280px), calc(100vh - 150px)));
    grid-template-columns: var(--board-size) minmax(0, 1fr);
    align-items: start;
    gap: 16px;
  }

  .side {
    justify-self: stretch;
    width: auto;
  }
}

@supports (height: 100dvh) {
  @media (orientation: landscape) and (max-height: 520px) and (min-width: 560px) and (max-width: 859px) {
    .layout {
      --board-size: max(180px, min(calc(100vw - 280px), calc(100dvh - 150px)));
    }
  }
}

.field {
  display: grid;
  gap: 6px;
}

.field + .field {
  margin-top: 12px;
}

.field-label {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Footer */
.footer {
  padding: 4px 16px 20px;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

.footer a {
  display: inline-block;
  padding: 10px 4px;
  border-radius: 6px;
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Win dialog */
.dialog {
  width: min(360px, calc(100vw - 32px));
  padding: 28px 24px 24px;
  border: 1px solid rgb(148 163 184 / 0.15);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 24px 64px rgb(2 6 23 / 0.6);
  text-align: center;
}

.dialog[open] {
  animation: pop-in 220ms ease-out;
}

.dialog::backdrop {
  background: rgb(2 6 23 / 0.7);
}

.dialog-title {
  margin: 0 0 4px;
  font-size: 1.5rem;
  line-height: 1.25;
}

.dialog-text {
  margin: 0;
  color: var(--muted);
}

.win-stats {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 20px 0 12px;
}

.win-stats div {
  min-width: 110px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--surface-raised);
}

.win-stats dt {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.win-stats dd {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}

.dialog-hints {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.badge {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.85rem;
  font-weight: 700;
}

.dialog-actions {
  display: flex;
  justify-content: center;
  gap: 8px;
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.97);
  }
}

@media (max-width: 400px) {
  .brand {
    font-size: 1.1rem;
  }

  .brand-mark {
    display: none;
  }

  .btn {
    padding: 0 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}