:root {
  --bg: #b8cab0;        /* medium-light sage — soothing backdrop */
  --panel: #f3f6ee;     /* near-white pale-sage card */
  --panel-2: #e6ecdd;   /* input wells */
  --line: #c7d4bd;
  --text: #232b22;
  --muted: #5d6b56;
  --accent: #4a8159;
  --accent-dim: #3c6b49;
  --bad: #c14f3c;
  --gold: #a8731a;      /* deep amber — readable on light panels */
  --radius: 14px;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 18px 64px;
}

/* Top bar ----------------------------------------------------------------- */
.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin-bottom: 28px;
}
.logo {
  margin: 0;
  text-align: center;
  font-size: 26px;
  letter-spacing: 1px;
  font-weight: 800;
}
.date {
  text-align: right;
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.home-btn {
  justify-self: start;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  padding: 6px 4px;
}
.home-btn:hover { color: var(--text); }
.topbar-left { justify-self: start; display: inline-flex; align-items: center; }
.hub-btn { text-decoration: none; }

.view { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* Menu -------------------------------------------------------------------- */
.tagline { text-align: center; color: var(--muted); margin: 0 0 18px; }
.menu-cards { display: grid; gap: 16px; }

/* Player name on the menu — clickable, opens a prompt to rename. */
.who { text-align: center; color: var(--muted); margin: 0 0 8px; font-size: 13px; }
.name-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 6px;
}
.name-btn:hover { background: rgba(0,0,0,.05); }
.name-btn .pencil { color: var(--muted); font-size: 12px; margin-left: 2px; }
.anonymous-toggle { display: inline-flex; align-items: center; gap: 4px; margin-left: 8px; color: var(--muted); font-size: 12px; cursor: pointer; white-space: nowrap; }
.anonymous-toggle input { accent-color: var(--accent); margin: 0; }
.streak {
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(232, 196, 95, .18);
  color: var(--text);
  font-weight: 600;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Menu actions (share + leaderboard) */
.menu-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 22px;
  flex-wrap: wrap;
}
.menu-actions .primary-btn, .menu-actions .ghost-btn { margin: 0; }

.mode-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 26px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  transition: border-color .15s, transform .1s;
  text-align: center;
}
.mode-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.mode-title { font-size: 19px; font-weight: 700; }
.mode-frame { font-family: var(--mono); font-size: 30px; letter-spacing: 3px; }
.mode-frame .blank, .frame .blank { color: var(--accent); }
.mode-desc { color: var(--muted); font-size: 13px; max-width: 24ch; }
.mode-status { font-size: 12px; color: var(--gold); min-height: 16px; }

/* Stacked split (top/bottom letters) ------------------------------------- */
.stack {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--mono);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;             /* don't inherit the frame's 2px tracking */
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 12px;             /* roomier so wide letters (W, M) don't clip */
}
.stack span { display: block; min-width: 2.2ch; text-align: center; }
.stack span:first-child { border-bottom: 1px solid var(--line); padding-bottom: 3px; }
.stack span:last-child { padding-top: 3px; color: var(--muted); }
.mode-split .stack { font-size: 22px; }

/* Game bar (progress + countdown) ---------------------------------------- */
.gamebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 18px;
}
.progress-pill { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.countdown {
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.countdown.urgent { color: var(--bad); }

.rules { color: var(--muted); font-size: 13px; text-align: center; margin: 0 0 18px; }

/* Interstitial between puzzles ------------------------------------------- */
.interstitial {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 40px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.inter-mark { font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.inter-mark.good { color: var(--accent); }
.inter-mark.ok { color: var(--gold); }
.inter-mark.bad { color: var(--bad); }
.inter-points { font-size: 48px; font-weight: 800; color: var(--gold); font-variant-numeric: tabular-nums; }
.inter-sub { color: var(--muted); font-size: 14px; margin-top: -6px; }
.inter-reveal { text-align: center; }
.inter-reveal .found-list { margin-top: 0; max-width: 360px; }
.inter-reveal .rv { font-family: var(--mono); font-size: 20px; letter-spacing: 1px; color: var(--text); }
.interstitial .primary-btn { margin-top: 8px; }

/* Puzzles ----------------------------------------------------------------- */
.puzzles { display: grid; gap: 14px; }
.puzzle {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color .2s, opacity .2s;
}
.puzzle.solved { border-color: var(--accent-dim); }
.puzzle.solved .frame { color: var(--accent); }

.puzzle-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.puzzle-num { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.puzzle-timer { font-family: var(--mono); font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.puzzle.solved .puzzle-timer { color: var(--accent); }

/* Frame + inputs */
.frame {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 30px;
  letter-spacing: 2px;
  margin-bottom: 12px;
  min-height: 52px;
}
.frame .fixed { width: 26px; text-align: center; }
.cell {
  width: 44px;
  height: 52px;
  text-align: center;
  font-family: var(--mono);
  font-size: 26px;
  letter-spacing: 0;             /* don't inherit the frame's 2px tracking */
  text-transform: uppercase;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  transition: border-color .12s;
}
.cell:focus { border-color: var(--accent); }
.cell:disabled { opacity: 1; background: transparent; border-color: transparent; color: var(--accent); }

/* Combo input row */
.combo-row { display: flex; gap: 8px; justify-content: center; }
.combo-input {
  width: 90px;
  height: 44px;
  text-align: center;
  font-family: var(--mono);
  font-size: 22px;
  text-transform: lowercase;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}
.combo-input:focus { border-color: var(--accent); }
.combo-submit, .check-btn {
  padding: 0 16px;
  height: 44px;
  border: 1px solid var(--accent-dim);
  background: var(--accent-dim);
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
.combo-submit:hover, .check-btn:hover { background: var(--accent); }

.found-list { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 12px; min-height: 26px; }
.chip {
  font-family: var(--mono);
  font-size: 14px;
  padding: 4px 9px;
  border-radius: 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}
.chip.found { background: var(--accent-dim); border-color: var(--accent); color: #fff; }
.chip.missed { color: var(--bad); border-color: var(--bad); }
.progress { text-align: center; color: var(--muted); font-size: 12px; margin-top: 10px; }

.shake { animation: shake .3s; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Buttons ----------------------------------------------------------------- */
.ghost-btn {
  display: block;
  margin: 20px auto 0;
  background: none;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 9px 18px;
  border-radius: 10px;
  cursor: pointer;
}
.ghost-btn:hover { color: var(--text); border-color: var(--muted); }
.primary-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
}
.primary-btn:hover { background: #6fc488; }

/* Results ----------------------------------------------------------------- */
#view-results { text-align: center; }
#results-title { font-size: 22px; margin: 8px 0 18px; }
.final-score { font-size: 56px; font-weight: 800; color: var(--gold); font-variant-numeric: tabular-nums; line-height: 1; }
.final-score-label { color: var(--muted); margin-bottom: 22px; }
.result-rows { list-style: none; padding: 0; margin: 0 auto 22px; max-width: 320px; }
.result-rows li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}
.result-rows .r-num { font-size: 18px; }
.result-rows .r-bar { display: flex; align-items: center; }
.result-rows .r-pts { color: var(--gold); font-weight: 700; white-space: nowrap; }

/* Red→yellow→green gradient bar showing how well a round went. The gradient
   lives on the track; an overlay masks the unfilled right portion, so a low
   fill reads red, a full fill reads green. ------------------------------- */
.score-bar {
  position: relative;
  width: 100%;
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(to right, #c14f3c 0%, #d99a3c 42%, #e8c45f 55%, #4a8159 100%);
}
.score-bar-fill {
  position: absolute;
  top: 0; bottom: 0; right: 0;
  background: var(--panel-2);
  transition: left .4s ease;
}
.r-x { color: var(--bad); font-size: 20px; font-weight: 800; }
.reveal-block { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.reveal-block .rv { font-family: var(--mono); color: var(--text); }
.result-actions { display: flex; gap: 12px; justify-content: center; }
.result-actions .ghost-btn, .result-actions .primary-btn { margin: 0; }
.copied-toast { color: var(--accent); font-size: 13px; margin-top: 12px; text-align: center; }

/* Leaderboard ------------------------------------------------------------- */
.board-title { text-align: center; font-size: 22px; margin: 8px 0 18px; }
.board-content { display: grid; gap: 14px; margin-bottom: 22px; }
.board-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.board-panel h3 {
  margin: 0 0 10px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  font-weight: 700;
}
.board-avg {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
  color: var(--text);
  margin-left: 6px;
}
.board-list { list-style: none; padding: 0; margin: 0; }
.board-row.board-row-extra { display: none; }
.board-panel.expanded .board-row.board-row-extra { display: grid; }
.board-expand {
  margin-top: 8px;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 0;
}
.board-expand:hover { color: var(--text); }
.board-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: baseline;
  padding: 6px 4px;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}
.board-row:last-child { border-bottom: none; }
.board-row.me { background: rgba(74, 129, 89, .08); border-radius: 6px; }
.board-rank { color: var(--muted); font-size: 13px; text-align: right; }
.board-name { color: var(--text); font-weight: 600; word-break: break-word; }
.board-score { color: var(--gold); font-weight: 700; white-space: nowrap; }
.board-score .board-max { color: var(--muted); font-weight: 500; font-size: 12px; }
.board-empty { color: var(--muted); font-size: 13px; padding: 6px 0; }
.board-empty-big { text-align: center; padding: 30px 16px; font-size: 15px; }
.board-empty-big small { color: var(--muted); font-size: 12px; }

/* Narrow screens: shrink the letter grid so long words don't overflow ---- */
@media (max-width: 430px) {
  .frame { gap: 5px; font-size: 24px; }
  .cell { width: 38px; height: 46px; font-size: 22px; }
  .stack { padding: 5px 10px; }
  .mode-split .stack, .frame .stack { font-size: 18px; }
  .countdown { font-size: 26px; }
}