:root {
  --bg: #FDF0D5;
  --bg-deep: #F5E4C4;
  --panel: #ffffff;
  --panel-2: #F7EBD0;
  --text: #2C2416;
  --muted: #7A6A52;
  --accent: #249D8F;
  --accent-2: #1A7A6F;
  --gold: #E9C46A;
  --coral: #E76F51;
  --border: rgba(36, 157, 143, 0.35);
  --ok: #249D8F;
  --danger: #E76F51;
  --radius: 16px;
  --shadow:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    0 10px 30px rgba(36, 157, 143, 0.12),
    0 2px 8px rgba(44, 36, 22, 0.06);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    system-ui, sans-serif;

  --gap: 3px;
  --tile-radius: 0;
}

* {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  min-height: 100%;
  min-height: 100dvh;
  background-color: var(--bg-deep);
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  min-height: 100dvh;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}

body {
  line-height: 1.4;
  background-color: var(--bg-deep);
  /* Page paper from /shared/notebook-bg.css */
}

body {
  user-select: none;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 16px 40px;
}

header.hero {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 18px;
}

header.hero h1 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: 0.02em;
}

header.hero .sub {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 4px;
}

.nav-home {
  display: inline-block;
  color: var(--accent-2);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.nav-home:hover {
  text-decoration: underline;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--accent-2);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(220px, 300px);
  gap: 18px;
  align-items: start;
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

.board-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  width: 100%;
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.92rem;
  min-width: 110px;
  justify-content: center;
}

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

.stat-chip .value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--text);
  font-size: 1.05rem;
}

#timer.running {
  color: var(--accent-2);
}

#timer.finished {
  color: var(--ok);
}

.hint-bar {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.92rem;
  color: var(--muted);
  text-align: center;
}

.progress {
  height: 6px;
  background: #E8D4A8;
  border-radius: 999px;
  overflow: hidden;
  width: 100%;
}

.progress > span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transition: width 0.2s ease;
}

.board-frame {
  position: relative;
  width: min(100%, 520px);
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

#board {
  display: grid;
  gap: var(--gap);
  width: 100%;
  aspect-ratio: var(--board-aspect, 1);
  border: 3px solid rgba(36, 157, 143, 0.45);
  background: #E8D4A8;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(36, 157, 143, 0.35);
}

.tile {
  position: relative;
  border-radius: var(--tile-radius);
  background-color: #cfdce2;
  background-repeat: no-repeat;
  /* background-size / position set inline from tile id */
  cursor: pointer;
  overflow: hidden;
  transition: box-shadow 0.12s ease, opacity 0.12s ease;
  outline: none;
  will-change: transform;
}

.tile:not(.empty):hover {
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 70%, transparent);
  z-index: 2;
}

#board:not(.is-animating) .tile:not(.empty):hover {
  transform: scale(1.02);
}

.tile:not(.empty):focus-visible {
  box-shadow: 0 0 0 3px var(--accent-2);
  z-index: 2;
}

.tile.movable {
  cursor: pointer;
}

.tile.movable::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  border-radius: inherit;
  pointer-events: none;
}

/* Fast slide - duration set via --slide-ms on #board (default ~85ms) */
.tile.sliding {
  transition: transform var(--slide-ms, 85ms) ease-out;
  z-index: 4;
  pointer-events: none;
  box-shadow: none;
}

#board.is-animating {
  pointer-events: none;
}

#board.is-animating .tile:not(.sliding) {
  transition: none;
}

.tile.empty {
  background: transparent !important;
  cursor: default;
  box-shadow: none;
  pointer-events: none;
}

.tile.correct:not(.empty)::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  /* Thicker inset ring so correctly placed tiles read clearly at a glance */
  box-shadow: inset 0 0 0 4px color-mix(in srgb, var(--ok) 75%, transparent);
  pointer-events: none;
  opacity: 0.85;
}

.tile.no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #ffffff 0%, #F7EBD0 100%);
  border: 1px solid color-mix(in srgb, var(--border, #3a4656) 80%, #7aa);
  color: var(--text);
  font-weight: 800;
  font-size: clamp(1.15rem, 5vw, 1.85rem);
  font-variant-numeric: tabular-nums;
}

.tile.no-image .num {
  position: static;
  font-size: inherit;
  text-shadow: none;
  opacity: 1;
  color: var(--accent-2, #1A7A6F);
  pointer-events: none;
  line-height: 1;
  font-weight: 800;
}

.board.solved .tile:not(.empty) {
  box-shadow: none;
}

.board.solved .tile.correct:not(.empty)::before {
  opacity: 0;
}

.board.solved {
  gap: 0;
}

.board.solved .tile {
  border-radius: 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  width: 100%;
}

button {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.92rem;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
}

button.primary {
  background: linear-gradient(180deg, #3DB5A3 0%, var(--accent) 55%, var(--accent-2) 100%);
  color: #ffffff;
  border-color: #a24a1c;
  color: #fff;
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  min-height: 1.2em;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.status.ok { color: var(--ok); }

.status.bad { color: var(--coral, var(--danger)); }

.side-panel h2 {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--accent-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.howto {
  margin: 0 0 14px;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.howto li {
  margin-bottom: 6px;
}

.howto strong {
  color: var(--text);
}

.side-meta {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.85rem;
}

.side-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
}

.preview-box {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #E8D4A8;
}

.preview-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--muted);
  padding: 6px 10px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}

.preview-box img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

footer.note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

/* Win / peek modals */
body.modal-open {
  overflow: hidden;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 43, 51, 0.35);
  backdrop-filter: blur(4px);
  z-index: 40;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  pointer-events: none;
}

.modal[hidden],
.modal-backdrop[hidden] {
  display: none !important;
}

.modal-card {
  pointer-events: auto;
  width: min(520px, 100%);
  max-height: min(92vh, 900px);
  overflow: auto;
  background: linear-gradient(180deg, #ffffff 0%, #F7EBD0 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 22px 20px 18px;
}

.modal-card h2 {
  margin: 0;
  font-size: 1.45rem;
}

.modal-lead {
  margin: 6px 0 16px;
  color: var(--muted);
}

.score-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.score-box {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 8px;
  text-align: center;
}

.score-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 4px;
}

.score-value {
  font-size: 1.35rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
}

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

.modal-actions button {
  flex: 1 1 auto;
}

.modal-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

.peek-card {
  width: min(640px, 100%);
}

.peek-full {
  display: block;
  width: 100%;
  max-height: min(60vh, 480px);
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #E8D4A8;
  margin-bottom: 14px;
}


/* Headings: Waukegan LDO (see /fonts/waukegan-ldo.css) */
h1, h2 {
  font-family: "Waukegan LDO", "Eurostile", "Arial Narrow", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* Puzzle info box under How to play (matches One Stroke) */
.side-meta {
  background: var(--panel-2, rgba(0, 0, 0, 0.04));
  border: 1px solid var(--border, rgba(0, 0, 0, 0.08));
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.88rem;
  color: var(--muted, #5a6a72);
  margin: 0 0 12px;
}
.side-meta dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  margin: 0;
}
.side-meta dt {
  color: var(--muted, #5a6a72);
  font-weight: 500;
}
.side-meta dd {
  margin: 0;
  color: var(--text, #1a2a30);
  font-weight: 600;
}


/* PALETTE-RICH OVERRIDES */
button.primary,
.btn-primary,
#btn-check.primary {
  background: linear-gradient(180deg, #3DB5A3 0%, var(--accent) 55%, var(--accent-2) 100%) !important;
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: #fff !important;
  box-shadow: 0 6px 16px rgba(36, 157, 143, 0.28);
}
button.primary:hover,
.btn-primary:hover {
  filter: brightness(1.05);
}
#btn-share-x,
#btn-share-x-win,
#btn-share,
.btn-x-share {
  background: linear-gradient(180deg, var(--gold) 0%, #D4A84A 100%) !important;
  border-color: color-mix(in srgb, var(--gold) 60%, #8a6a20) !important;
  color: #2C2416 !important;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(233, 196, 106, 0.35);
}
.status.bad,
.bad {
  color: var(--coral, #E76F51) !important;
}
.status.ok,
.ok {
  color: var(--accent) !important;
}
.progress > span,
.progress-bar,
#progress-bar,
#question-timer-fill {
  background: linear-gradient(90deg, var(--accent), var(--gold)) !important;
}
.hero .badge,
.badge {
  color: var(--accent-2);
  border-color: color-mix(in srgb, var(--gold) 45%, var(--border));
  background: color-mix(in srgb, var(--gold) 18%, var(--panel));
}
a.nav-home {
  color: var(--accent-2);
}
a.nav-home:hover {
  color: var(--coral);
}


/* CORAL-EMPHASIS */
button:not(.primary):not(.btn-primary):hover {
  border-color: #E76F51 !important;
  color: #C9543A !important;
}
#btn-clear,
#btn-skip,
#btn-reset,
button[id*="clear"],
button[id*="reset"],
button[id*="skip"] {
  border-color: color-mix(in srgb, #E76F51 40%, var(--border)) !important;
  color: #C9543A !important;
}
#btn-clear:hover,
#btn-reset:hover,
#btn-skip:hover {
  background: color-mix(in srgb, #E76F51 14%, var(--panel)) !important;
}
.cell.wrong,
.wrong,
.is-wrong,
[data-wrong="1"] {
  background: #F8C4B4 !important;
  box-shadow: inset 0 0 0 2px #E76F51 !important;
}
.timer,
#timer,
.stat-chip .value {
  color: #C9543A;
}
.clue-current,
.hint-bar {
  border-left: 3px solid #E76F51;
}
.modal-actions #btn-close-modal,
#btn-close-modal,
#btn-close-win {
  border-color: color-mix(in srgb, #E76F51 45%, var(--border)) !important;
  color: #C9543A !important;
}
a.btn-link {
  border-color: color-mix(in srgb, #E76F51 35%, var(--border)) !important;
  color: #C9543A !important;
}
a.btn-link:hover {
  background: color-mix(in srgb, #E76F51 12%, #FFFBF3) !important;
}