/* ── CSS custom properties ─────────────────────────────────────────── */
:root {
  --cell-size: 40px;
  --color-selected: #FFD700;
  --color-active-word: #A7D8FF;
  --color-black-cell: #1A1A1A;
  --color-incorrect: #FFB3B3;
  --color-revealed: #F0E6FF;
  --color-pencil-text: #6B6B6B;
  --color-correct-dot: #2ECC71;
  --toolbar-height: 48px;
  --cluebar-height: 36px;
  --font-main: 'Libre Franklin', 'Helvetica Neue', Arial, sans-serif;
  --border-color: #333;
  --bg-page: #f8f8f8;
  --bg-toolbar: #fff;
  --text-clue-active: #000;
  --text-clue-inactive: #555;
  --clue-active-bg: #e8f4ff;
  --btn-bg: #f0f0f0;
  --btn-hover: #e0e0e0;
  --dropdown-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* ── Reset & base ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-main);
  background: var(--bg-page);
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
}

/* ── Toolbar ────────────────────────────────────────────────────────── */
#toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--toolbar-height);
  padding: 0 12px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid #ddd;
  flex-shrink: 0;
  z-index: 10;
}

#timer-display {
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  min-width: 48px;
  color: #555;
}

#puzzle-title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  flex: 1;
  padding: 0 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#toolbar-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

#btn-pencil {
  background: var(--btn-bg);
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  transition: background 0.15s;
}
#btn-pencil:hover { background: var(--btn-hover); }
#btn-pencil.pencil-mode-active { background: var(--color-selected); border-color: #aaa; }

/* ── Dropdowns ──────────────────────────────────────────────────────── */
.dropdown { position: relative; }

.dropdown-toggle {
  background: var(--btn-bg);
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-main);
  transition: background 0.15s;
}
.dropdown-toggle:hover { background: var(--btn-hover); }

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  box-shadow: var(--dropdown-shadow);
  z-index: 100;
  min-width: 140px;
  overflow: hidden;
}
.dropdown-menu.open { display: block; }

.dropdown-menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 14px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-main);
  transition: background 0.1s;
}
.dropdown-menu button:hover { background: #f0f0f0; }

/* ── Clue bar ───────────────────────────────────────────────────────── */
#clue-bar {
  display: flex;
  align-items: center;
  height: var(--cluebar-height);
  padding: 0 12px;
  background: #222;
  color: #fff;
  font-size: 13px;
  flex-shrink: 0;
  gap: 6px;
  overflow: hidden;
}

#clue-bar-number {
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

#clue-bar-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Main layout ────────────────────────────────────────────────────── */
#main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

#grid-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 16px;
  flex: 0 0 60%;
  overflow: auto;
}

/* ── Grid ───────────────────────────────────────────────────────────── */
#grid {
  display: grid;
  border: 2px solid var(--border-color);
  user-select: none;
}

.cell {
  width: var(--cell-size);
  height: var(--cell-size);
  border: 1px solid #aaa;
  position: relative;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cell-black {
  background: var(--color-black-cell);
  border-color: var(--color-black-cell);
  pointer-events: none;
  cursor: default;
}

.cell-selected { background: var(--color-selected) !important; }
.cell-active-word { background: var(--color-active-word) !important; }
.cell-incorrect { background: var(--color-incorrect) !important; }
.cell-revealed { background: var(--color-revealed) !important; }

/* red dot for incorrect */
.cell-incorrect::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 5px;
  height: 5px;
  background: #e00;
  border-radius: 50%;
}

/* green triangle for revealed */
.cell-revealed::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  border-style: solid;
  border-width: 0 10px 10px 0;
  border-color: transparent #7c3aed transparent transparent;
}

.cell-number {
  position: absolute;
  top: 1px;
  left: 2px;
  font-size: 9px;
  font-weight: 300;
  line-height: 1;
  color: #222;
  pointer-events: none;
}

.cell-letter {
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
  pointer-events: none;
  color: #111;
}

.cell-pencil .cell-letter {
  color: var(--color-pencil-text);
  font-weight: 300;
}

/* ── Clue panel ─────────────────────────────────────────────────────── */
#clue-panel {
  flex: 0 0 40%;
  overflow-y: auto;
  padding: 12px 16px;
  border-left: 1px solid #ddd;
  background: #fff;
}

#across-section, #down-section { margin-bottom: 24px; }

#clue-panel h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #888;
  margin-bottom: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid #eee;
}

#across-list, #down-list {
  list-style: none;
  padding: 0;
}

.clue-item {
  display: flex;
  gap: 6px;
  padding: 5px 6px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-clue-inactive);
  transition: background 0.1s;
}
.clue-item:hover { background: #f5f5f5; }
.clue-item.clue-active {
  background: var(--clue-active-bg);
  color: var(--text-clue-active);
  font-weight: 600;
}

.clue-num {
  flex-shrink: 0;
  font-weight: 600;
  min-width: 24px;
  text-align: right;
  color: #444;
}

/* ── Intro overlay ──────────────────────────────────────────────────── */
#intro-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
}
#intro-overlay.hidden { display: none; }

#intro-box {
  background: #fff;
  border-radius: 12px;
  padding: 40px 48px 32px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
  max-width: 420px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

#intro-logo {
  width: 72px;
  height: 72px;
  margin-bottom: 14px;
}

#intro-crossword-label {
  font-family: var(--font-main);
  font-size: 26px;
  font-weight: 800;
  color: #111;
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}

#intro-title {
  font-family: var(--font-main);
  font-size: 20px;
  font-weight: 400;
  color: #222;
  font-style: italic;
  margin-bottom: 28px;
}

#intro-prompt {
  font-family: var(--font-main);
  font-size: 20px;
  font-weight: 400;
  color: #111;
  margin-bottom: 18px;
}

#intro-play-btn {
  background: #111;
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 14px 0;
  width: 100%;
  max-width: 240px;
  font-size: 17px;
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 24px;
}
#intro-play-btn:hover { background: #333; }

#intro-meta {
  font-family: var(--font-main);
  font-size: 13px;
  color: #222;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

#intro-date { font-weight: 700; }
.intro-dot { color: #555; }
#intro-credit { color: #222; }

/* ── Completion modal ───────────────────────────────────────────────── */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
#modal-overlay.hidden { display: none; }

#modal-box {
  background: #fff;
  border-radius: 12px;
  padding: 32px 40px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  max-width: 320px;
  width: 90%;
}
#modal-box h2 { font-size: 22px; margin-bottom: 10px; }
#modal-box p { font-size: 16px; color: #555; margin-bottom: 20px; }
#modal-close {
  background: #222;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-size: 14px;
  cursor: pointer;
}
#modal-close:hover { background: #444; }

/* ── Puzzle date ────────────────────────────────────────────────────── */
#puzzle-date {
  width: 100%;
  text-align: center;
  font-size: 12px;
  font-weight: 300;
  color: #999;
  padding: 4px 0;
  flex-shrink: 0;
  background: var(--bg-page);
}

/* ── Mobile input (off-screen) ──────────────────────────────────────── */
#mobile-input {
  position: fixed;
  top: -100px;
  left: -100px;
  opacity: 0;
  width: 1px;
  height: 1px;
}

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --cell-size: 28px;
  }

  body { overflow: auto; }

  #main-content {
    flex-direction: column;
    overflow: visible;
  }

  #grid-container {
    flex: none;
    padding: 8px;
    overflow: visible;
  }

  #clue-panel {
    flex: none;
    border-left: none;
    border-top: 1px solid #ddd;
    max-height: 300px;
    overflow-y: auto;
  }

  .cell-letter { font-size: 14px; }
  .cell-number { font-size: 7px; }

  #puzzle-title { font-size: 13px; }
  .dropdown-toggle { font-size: 12px; padding: 4px 7px; }
}

/* ── Birthday overlay ───────────────────────────────────────────────────────── */
#birthday-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  cursor: pointer;
}

.bday-scene {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
  user-select: none;
}

.confetti-wrap {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.confetto {
  position: absolute;
  top: -12px;
  animation: confetti-fall linear infinite;
}
@keyframes confetti-fall {
  0%   { transform: translateY(0) rotate(0deg);   opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(105vh) rotate(720deg); opacity: 0; }
}

.bday-msg {
  font-size: clamp(22px, 5vw, 38px);
  font-weight: 800;
  color: #fff;
  text-align: center;
  animation: bday-pop 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
}
.bday-sub {
  font-size: clamp(14px, 3vw, 20px);
  color: #ffd700;
  font-style: italic;
  animation: bday-pop 0.5s 0.15s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes bday-pop {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ── Cake GIF ── */
.bday-cake-gif {
  width: min(280px, 70vw);
  border-radius: 12px;
  animation: bday-pop 0.6s 0.3s cubic-bezier(0.34,1.56,0.64,1) both;
}

.bday-time {
  font-size: 16px;
  color: #b3e5fc;
  margin-top: 4px;
}
.bday-hint {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 6px;
}