/* CRSWRD - styles
   dark & light mode, simple, and readable. */

:root {
  /* Theme (dark default) */
  --bg: #0c0f14;
  --text: #e8edf6;
  --muted: #aab4c5;

  --border: rgba(255, 255, 255, 0.12);

  --accent: #b7f000; /* lime accent */
  --accent-ink: #0b1200;

  /* Surfaces */
  --surface: rgba(18, 24, 38, 0.86);
  --surface-2: rgba(255, 255, 255, 0.03);

  /* Controls */
  --control-bg: rgba(255, 255, 255, 0.06);
  --control-bg-open: #121826; /* dropdown list */
  --control-border: rgba(255, 255, 255, 0.12);

  /* Grid cells */
  --cell-bg: rgba(255, 255, 255, 0.06);
  --cell-border: rgba(255, 255, 255, 0.12);
  --block-bg: rgba(0, 0, 0, 0.5);
  --block-border: rgba(255, 255, 255, 0.08);
  --num-color: rgba(232, 237, 246, 0.75);

  /* Layout */
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

  /* Desktop layout width (was hard-coded 1100px in multiple places) */
  --page-max: 1400px;
}

/* Let the browser draw native controls correctly for the theme */
html {
  color-scheme: dark;
}

html[data-theme='light'] {
  color-scheme: light;

  --bg: #f6f7fb;
  --text: #0f172a;
  --muted: #475569;

  --border: rgba(15, 23, 42, 0.12);

  /* Keep the same accent, just let it pop on light */
  --surface: rgba(255, 255, 255, 0.92);
  --surface-2: rgba(15, 23, 42, 0.04);

  --control-bg: rgba(15, 23, 42, 0.05);
  --control-bg-open: #ffffff;
  --control-border: rgba(15, 23, 42, 0.18);

  --cell-bg: rgba(15, 23, 42, 0.04);
  --cell-border: rgba(15, 23, 42, 0.14);
  --block-bg: rgba(15, 23, 42, 0.1);
  --block-border: rgba(15, 23, 42, 0.12);
  --num-color: rgba(15, 23, 42, 0.6);

  --shadow: 0 10px 30px rgba(2, 6, 23, 0.12);
}

.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    'Apple Color Emoji', 'Segoe UI Emoji';
  background: radial-gradient(
      1200px 600px at 20% -10%,
      rgba(183, 240, 0, 0.08),
      transparent 55%
    ),
    var(--bg);
  color: var(--text);
}

.site-header {
  padding: 18px 0 0;
}

.site-header .brand {
  max-width: var(--page-max);
  margin: 0 auto;
}

.brand-text {
  text-align: left;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--page-max);
  margin: 0 auto;
}

.brand-title {
  font-size: 18px;
  margin: 0;
  line-height: 1.1;
  letter-spacing: 0.6px;
}

.brand-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.layout {
  max-width: var(--page-max);
  margin: 18px auto 0;
  padding: 0 18px 24px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 16px;
}

.panel,
.stage-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel {
  padding: 16px;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 16px;
}

/* When Puzzle Settings is collapsed, also collapse the layout column so we don't leave ghost space */
body.config-collapsed .layout {
  grid-template-columns: 1fr;
}

/* Make sure the collapsed panel does not render anything at all */
.panel.is-collapsed {
  display: none;
}

.config-form {
  display: grid;
  gap: 12px;
}

.field label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

select {
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--control-border);
  background: var(--control-bg);
  color: var(--text);
  outline: none;
  /* Helps browsers render native form controls in dark mode */
  color-scheme: inherit;
}

/* Dropdown list (options) styling.
   Note: browsers vary, but this improves most Chromium-based setups. */
select option,
select optgroup {
  background: var(--control-bg-open);
  color: var(--text);
}

/* Make disabled options clearly disabled (if you ever use them) */
select option:disabled {
  color: rgba(232, 237, 246, 0.45);
}

select:focus {
  border-color: rgba(183, 240, 0, 0.7);
  box-shadow: 0 0 0 3px rgba(183, 240, 0, 0.12);
}

.btn-primary {
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.2px;
  background: var(--accent);
  color: var(--accent-ink);

  margin-top: 12px; /* 👈 space above Generate button */
}

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

.btn-secondary {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

/* Screen-reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link becomes visible on focus */
.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transform: translateY(-140%);
  transition: transform 120ms ease;
  z-index: 999;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Clear keyboard focus */
:focus-visible {
  outline: 3px solid rgba(183, 240, 0, 0.85);
  outline-offset: 2px;
}

/* Fieldset reset */
.fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.helper {
  margin-top: 10px; /* space below Generate Puzzle */
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.helper-sub {
  margin-top: 6px;
}

.stage {
  min-height: 340px;

  /* Center the play card in the stage column */
  display: flex;
  flex-direction: column; /* stack children, not side-by-side */
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
}

.stage-card {
  height: 100%;
  padding: 18px;

  /* Hug the content instead of stretching full width */
  width: fit-content;
  max-width: 100%;

  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stage-card-inner {
  /* Let the inner content define the card width */
  width: 100%;

  display: grid;
  align-content: start;
  gap: 8px;
}

.stage-title {
  margin: 0;
  font-size: 16px;
}

.stage-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.config-tips {
  margin-top: 12px; /* space below Generate button */
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.config-tips-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2px;
  color: var(--text);
  margin-bottom: 6px;
}

/* Phase 2: Static Crossword UI */

.puzzle-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 14px;
  align-items: start;
}

.puzzle-grid-wrap {
  display: grid;
  gap: 10px;
}

.puzzle-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 36px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

/* Let the clue use remaining space and truncate cleanly */
.puzzle-bar-text {
  flex: 1;
  min-width: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Right-side “what am I playing” meta */
.puzzle-bar-meta {
  margin-left: auto;
  white-space: nowrap;
  font-size: 12px;
  color: var(--muted);
  opacity: 0.95;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(183, 240, 0, 0.35);
  background: rgba(183, 240, 0, 0.12);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.crossword {
  --cell: clamp(32px, 6.2vw, 44px);
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  grid-template-rows: repeat(var(--rows), var(--cell));
  gap: 3px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  touch-action: manipulation;
}

.cell {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: var(--cell);
  height: var(--cell);
  border-radius: 10px;
  border: 1px solid var(--cell-border);
  background: var(--cell-bg);
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  user-select: none;
}

.cell:focus-visible {
  outline-offset: 2px;
}

.cell.block {
  background: var(--block-bg);
  border-color: var(--block-border);
  cursor: default;
}

.cell .num {
  position: absolute;
  top: 6px;
  left: 7px;
  font-size: 10px;
  line-height: 1;
  color: var(--num-color);
  font-weight: 700;
}

.cell .val {
  font-size: 16px;
}

.cell.in-word {
  border-color: rgba(183, 240, 0, 0.38);
  background: rgba(183, 240, 0, 0.08);
}

.cell.active {
  border-color: rgba(183, 240, 0, 0.85);
  box-shadow: 0 0 0 3px rgba(183, 240, 0, 0.12);
  background: rgba(183, 240, 0, 0.14);
}

/* Mobile typing: make the active cell feel like the real input target */
body.mobile-typing .cell.active {
  box-shadow: 0 0 0 4px rgba(183, 240, 0, 0.18);
}

/* Caret attached to the value element when typing on mobile */
body.mobile-typing .cell.active .val:empty::after {
  content: '';
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--text);
  opacity: 0.85;
  animation: crswrd-caret-blink 1s steps(1, end) infinite;
}

@keyframes crswrd-caret-blink {
  50% {
    opacity: 0;
  }
}

/* Session 9: Gameplay toolbar layout */

/* One-line gameplay toolbar */
.gameplay-controls {
  display: flex;
  align-items: center;
  gap: 14px;

  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);

  flex-wrap: wrap; /* wraps gracefully on smaller screens */
}

/* Logical button group */
.control-group {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* Push Reset/New to the right */
.control-group-end {
  margin-left: auto;
}

/* Make Reveal feel secondary */
#revealLetterBtn,
#revealWordBtn,
#revealPuzzleBtn {
  color: var(--muted);
}

#revealLetterBtn:hover,
#revealWordBtn:hover,
#revealPuzzleBtn:hover {
  color: var(--text);
}

/* Status sits quietly */
.check-status {
  flex-basis: 100%;
  margin-top: 4px;
  padding-left: 4px;
  font-size: 12px;
  color: var(--muted);
}

.btn-mini {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  font-size: 12px;
}

.check-status.is-win {
  font-weight: 800;
  color: var(--text);
  animation: win-pop 520ms ease-out 1;
}

@keyframes win-pop {
  0% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}

.puzzle-solved .cell:not(.block) {
  border-color: rgba(183, 240, 0, 0.55);
}

/* Visual feedback on cells */
.cell.is-correct {
  border-color: rgba(183, 240, 0, 0.85);
  background: rgba(183, 240, 0, 0.16);
}

.cell.is-incorrect {
  border-color: rgba(255, 90, 90, 0.85);
  background: rgba(255, 90, 90, 0.12);
}

.clues {
  display: grid;
  gap: 12px;
}

.clues-section {
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.clues-title {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.2px;
}

.clue-list {
  margin: 0;
  padding: 0;
  list-style: none; /* remove the auto 1,2,3 numbering */
  display: grid;
  gap: 6px;
}

.clue {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.3;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid transparent;
}

.clue:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.clue.is-active {
  border-color: rgba(183, 240, 0, 0.45);
  background: rgba(183, 240, 0, 0.1);
  color: var(--text);
}

/* ─────────────────────────────────────────────
   Mobile keyboard bridge input
   Android Chromium often requires a visible (not display:none) input to open the OSK.
   We keep this effectively invisible and out of the way.
   ───────────────────────────────────────────── */

.mobile-input {
  position: fixed;
  left: 12px;
  bottom: 12px;

  width: 1px;
  height: 1px;

  opacity: 0.02; /* not 0: Chromium may ignore a fully hidden input */
  pointer-events: none;

  border: 0;
  background: transparent;
  color: transparent;

  padding: 0;
  outline: none;
}

/* Touch-only UI: hidden by default, enabled when JS adds body.has-touch */
.touch-only {
  display: none;
}

body.has-touch .touch-only {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Touch devices: show mobile-only controls even if we're in tablet landscape */
body.has-touch .mobile-only {
  display: block;
  margin-bottom: 10px;
}

.keyboard-bar {
  flex-wrap: wrap;
  row-gap: 6px;
}

/* Desktop: don’t let this steal focus or show any caret artifacts */
body:not(.has-touch) .mobile-input {
  left: -9999px;
  bottom: auto;
  top: 0;
  opacity: 0;
}

.site-footer {
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 12px;
}

.mobile-only {
  display: none;
}

/* Hidden by default. Enabled via JS when touch-first is detected. */
.touch-only {
  display: none;
}

body.has-touch .touch-only {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Collapsed state for config panel (mobile) */
.panel.is-collapsed {
  display: none;
}

/* Phone + tablet comfort */
@media (max-width: 900px) {
  .mobile-only {
    display: block;
    margin-bottom: 10px;
  }

  .stage {
    min-height: max(240px, calc(100vh - 140px));
    display: block;
  }

  .stage-top {
    display: block;
    margin-bottom: 6px;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .puzzle-layout {
    grid-template-columns: 1fr;
  }

  .site-header {
    padding: 14px 14px 0;
  }

  .brand {
    gap: 10px;
  }

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

  .brand-subtitle {
    font-size: 12px;
  }

  .layout {
    margin-top: 14px;
    padding: 0 14px 18px;
    gap: 12px;
  }

  .panel {
    padding: 14px;
  }

  /* Bigger tap targets */
  select {
    padding: 12px 12px;
    border-radius: 12px;
    font-size: 16px; /* prevents iOS zoom on focus */
  }

  .btn-primary {
    padding: 13px 12px;
    font-size: 16px;
  }

  .stage-card {
    padding: 14px;
  }

  /* Mobile: gameplay toolbar should fit, not overflow */
  .gameplay-controls {
    gap: 8px;
    padding: 10px;
  }

  /* Each group becomes its own row */
  .control-group {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 6px;
  }

  /* Don't push Reset/New off-screen on mobile */
  .control-group-end {
    margin-left: 0;
  }

  /* Slightly smaller buttons for mobile */
  .btn-mini {
    padding: 7px 9px;
    font-size: 11px;
  }

  /* Mobile: ensure even the largest grid fits */
  .crossword {
    --cell: clamp(20px, 5.6vmin, 32px);
    gap: 2px;
    padding: 6px;
  }

  /* Prevent tiny horizontal scroll/clipping from rounding */
  body {
    overflow-x: hidden;
  }

  .stage-card {
    overflow-x: hidden;
  }

  .cell {
    border-radius: 8px;
  }

  .cell .val {
    font-size: 14px;
  }

  .cell .num {
    top: 5px;
    left: 6px;
    font-size: 9px;
  }
}

/* Phone-only: keep the grid readable */
@media (max-width: 520px) {
  .crossword {
    --cell: clamp(24px, 9vw, 36px);
    gap: 2px;
    padding: 6px;
  }

  .cell .val {
    font-size: 16px;
  }
}