:root {
  --bg: #f5f4f0;
  --panel-bg: #ffffff;
  --ink: #232323;
  --ink-soft: #5c5c5c;
  --accent: #3a6f6f;
  --accent-strong: #2a5252;
  --border: #d8d5cd;
  --cell-bg: #ffffff;
  --cell-border: #b9b6ac;
  --cell-block: #232323;
  --cell-vowel: #eaf3f1;
  --cell-filled: #dff1ee;
  --cell-locked: #e3e0d6;
  --cell-error: #f6c6c2;
  --tile-bg: #3a6f6f;
  --tile-ink: #ffffff;
  --tile-locked-bg: #9a978c;
  --success: #3f8f5f;
  --radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

h1, h2 { margin: 0; }

.app-header {
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.header-title-row {
  justify-content: center;
  margin-bottom: 12px;
}

.header-title-row h1 {
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--accent-strong);
}

.timer {
  font-variant-numeric: tabular-nums;
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  color: var(--accent-strong);
}

.header-controls-row {
  justify-content: center;
  align-items: flex-end;
}

/* Timer sits at the end of the centered controls row, aligned with them. */
.header-controls-row .timer {
  margin-left: 4px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.7rem;
  color: var(--ink-soft);
}

.control-group label {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hidden { display: none !important; }

.daily-label {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-strong);
  padding: 6px 0;
  line-height: 1.4;
}

select option:disabled { color: var(--cell-border); }

select {
  font: inherit;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  color: var(--ink);
}

.btn {
  align-self: flex-end;
  font: inherit;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:hover { background: var(--accent-strong); }
.btn:active { transform: translateY(1px); }

.btn-secondary {
  background: var(--panel-bg);
  color: var(--accent-strong);
}
.btn-secondary:hover { background: var(--bg); }

.app-main {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 520px);
  gap: 20px;
  padding: 20px;
  align-items: start;
  max-width: 880px;
  margin: 0 auto;
}

@media (max-width: 780px) {
  .app-main {
    grid-template-columns: 1fr;
    max-width: 460px;
  }
}

.pool-panel, .grid-panel {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.pool-panel h2, .grid-panel h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.pool-hint {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin: 0 0 14px;
  line-height: 1.4;
}

.pool-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pool-word-group {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.pool-word-label {
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
}

.pool-tiles {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 40px;
}

.tile {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--tile-bg);
  color: var(--tile-ink);
  border-radius: 7px;
  font-weight: 700;
  font-size: 1.3rem;
  cursor: grab;
  user-select: none;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  transition: transform 0.1s ease, opacity 0.15s ease;
}

.tile:active { cursor: grabbing; }

.tile.dragging {
  opacity: 0.4;
}

.tile.selected {
  outline: 3px solid var(--accent-strong);
  outline-offset: 1px;
  transform: scale(1.08);
}

.tile.locked {
  background: var(--tile-locked-bg);
  cursor: default;
}

/* Placed letters stay visible in the source word as inert ghosts. */
.tile.ghost {
  background: transparent;
  color: var(--cell-border);
  border: 1px dashed var(--border);
  box-shadow: none;
  cursor: default;
  text-decoration: line-through;
  pointer-events: none;
}

.grid-container {
  display: inline-grid;
  gap: 2px;
  background: var(--cell-block);
  border: 2px solid var(--cell-block);
  border-radius: 4px;
  overflow: hidden;
}

.cell {
  position: relative;
  width: var(--cell-px, 52px);
  height: var(--cell-px, 52px);
  background: var(--cell-bg);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cell.block {
  background: var(--cell-block);
}

.cell.vowel-hint {
  background: var(--cell-vowel);
}

.cell.drag-over {
  background: var(--cell-filled);
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.cell .cell-number {
  position: absolute;
  top: 2px;
  left: 3px;
  font-size: 0.6rem;
  color: var(--ink-soft);
  font-weight: 600;
  pointer-events: none;
}

.cell .tile {
  width: 100%;
  height: 100%;
  border-radius: 0;
  font-size: 1.35rem;
  box-shadow: none;
}

.cell.error .tile {
  background: var(--cell-error);
  color: #7a1f1f;
}

@media (max-width: 500px) {
  .cell .tile { font-size: 1.2rem; }
  .tile { width: 40px; height: 40px; font-size: 1.2rem; }
}

.clues {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  font-size: 0.85rem;
}

@media (max-width: 500px) {
  .clues { grid-template-columns: 1fr; }
}

.clues h3 {
  margin: 0 0 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.clues ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.clues li {
  padding: 2px 0;
  color: var(--ink-soft);
}

.clues li.clue-hidden {
  cursor: pointer;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}
.clues li.clue-hidden:hover { color: var(--accent-strong); }

.clues li.clue-revealed {
  color: var(--ink);
}

.clue-note {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 0.75rem;
  color: var(--ink-soft);
  font-style: italic;
}

.win-banner {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 28, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.win-banner.hidden { display: none; }

.win-banner-inner {
  background: var(--panel-bg);
  border-radius: 16px;
  padding: 32px 40px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.win-banner-inner h2 {
  color: var(--success);
  font-size: 2rem;
  margin-bottom: 8px;
}

.win-banner-inner p {
  color: var(--ink-soft);
  margin: 0 0 20px;
  font-size: 1.05rem;
}

.share-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.35;
  text-align: left;
  display: inline-block;
  user-select: all;
}

.win-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.win-streak {
  color: var(--accent-strong);
  font-weight: 700;
  margin: -12px 0 16px;
}
.win-streak:empty { display: none; }

.next-puzzle {
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 14px 0 0;
}
.next-puzzle:empty { display: none; }

.solved-strip {
  display: inline-block;
  margin-left: 10px;
  padding: 4px 12px;
  background: var(--success);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
}