:root {
  --desk: #1c1915;
  --paper: #f4efe4;
  --paper-deep: #e7dfd0;
  --ink: #1a1612;
  --ink-soft: #5c5348;
  --rule: #d9d0c2;
  --oxblood: #8c3a2f;
  --oxblood-deep: #6e2c24;
  --moss: #1e4d3a;
  --moss-soft: #e5f0ea;
  --select: #f3e2b0;
  --display: "Fraunces", "Iowan Old Style", Palatino, serif;
  --sans: "Outfit", "Avenir Next", "Segoe UI", sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--desk);
  color: var(--paper);
  font-family: var(--sans);
}

button, select, input, textarea { font: inherit; }

button { cursor: pointer; }

button:disabled { cursor: default; opacity: 0.4; }

button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--oxblood);
  outline-offset: 2px;
}

.wrap {
  width: min(48rem, 100%);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.kicker {
  margin: 0;
  color: var(--oxblood);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1, h2, h3 { font-family: var(--display); font-weight: 600; }

h1 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(2.5rem, 8vw, 3.25rem);
  line-height: 1;
}

.top-actions {
  display: flex;
  flex: 1;
  align-items: flex-end;
  gap: 0.5rem;
  min-width: 11rem;
}

.puzzle-pick {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
  color: rgb(244 239 228 / 60%);
  font-size: 0.75rem;
}

select, .field input, .field textarea {
  width: 100%;
  border: 1px solid rgb(244 239 228 / 20%);
  background: var(--paper);
  color: var(--ink);
}

select, .ghost, .btn, .field input {
  height: 2.75rem;
}

select { padding: 0 0.75rem; }

.ghost {
  flex: none;
  border: 1px solid rgb(244 239 228 / 30%);
  background: transparent;
  color: var(--paper);
  padding: 0 0.75rem;
}

.banner, .intro {
  margin: 0;
  max-width: 40rem;
  color: rgb(244 239 228 / 75%);
  font-size: 0.95rem;
  line-height: 1.5;
}

.banner[hidden], #play[hidden], #manage[hidden], .error[hidden] { display: none; }

.unlock {
  width: min(24rem, calc(100vw - 2rem));
  padding: 0;
  border: 0;
  background: transparent;
}

.unlock::backdrop { background: rgb(0 0 0 / 0.62); }

.unlock .card { margin: 0; }

.unlock h2 { margin: 0; font-size: 1.75rem; }

.grid-scroll {
  overflow-x: auto;
  margin: 0 -1rem;
  padding: 0 1rem 0.25rem;
}

.crossword {
  display: grid;
  width: max-content;
  min-width: 100%;
  gap: 1px;
  margin: 0 auto;
  padding: 1px;
  background: var(--ink);
}

.cell {
  position: relative;
  aspect-ratio: 1;
  min-width: 1.45rem;
  border: 0;
  padding: 0;
  color: var(--ink);
  background: var(--paper);
}

.cell:hover { background: var(--paper-deep); }

.cell.on, .code.on { background: var(--select); }

.cell.black {
  background: var(--ink);
  pointer-events: none;
}

.num-tiny {
  font-family: var(--sans);
  font-size: 0.55rem;
  line-height: 1;
}

.cell .num-tiny {
  position: absolute;
  top: 0.125rem;
  right: 0.125rem;
  color: var(--ink-soft);
}

.cell-num {
  font-size: clamp(0.8rem, 2.6vw, 1.2rem);
  font-variant-numeric: tabular-nums;
}

.cell-letter {
  font-family: var(--display);
  font-size: clamp(1rem, 3.2vw, 1.5rem);
  font-weight: 600;
}

.card {
  border-radius: 1.25rem;
  background: var(--paper);
  color: var(--ink);
  padding: 1rem;
  box-shadow: 0 18px 50px rgb(0 0 0 / 0.28);
}

.code-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.code-head h2 { margin: 0; font-size: 1.25rem; }

.placed { margin: 0; color: var(--ink-soft); font-size: 0.75rem; }

.placed strong {
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.125rem;
  font-weight: 600;
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  gap: 0.25rem;
}

.code {
  display: flex;
  aspect-ratio: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  padding: 0;
}

.code.on { border-color: var(--oxblood); }

.code .letter {
  font-family: var(--display);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
}

.alphabet {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.375rem;
  margin-top: 1rem;
}

.letter-key {
  height: 2.75rem;
  border: 0;
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.125rem;
  font-weight: 600;
}

.letter-key.taken { background: var(--moss-soft); color: var(--moss); }

.letter-key:hover { background: var(--select); }

.note { margin: 0.75rem 0 0; color: var(--oxblood); font-size: 0.9rem; }

.actions { display: flex; gap: 0.5rem; margin-top: 1rem; }

.btn {
  border: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0 0.85rem;
}

.btn:hover, .btn-line:hover { background: var(--oxblood-deep); }

.btn-line {
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink);
  padding: 0 0.85rem;
}

.btn-line:hover { background: transparent; border-color: var(--ink); color: var(--ink); }

.field { display: block; margin-top: 0.75rem; font-size: 0.9rem; }

.field input, .field textarea { margin-top: 0.25rem; padding: 0.5rem 0.75rem; }

.field textarea {
  border-color: var(--rule);
  background: var(--paper-deep);
  min-height: 8rem;
}

.hint { margin: 0.25rem 0 0; color: var(--ink-soft); font-size: 0.75rem; }

.help { margin: 0.25rem 0 0; color: var(--ink-soft); font-size: 0.9rem; }

.error { margin: 0.75rem 0 0; color: var(--oxblood); }

.puzzle-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.puzzle-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid var(--rule);
}

.puzzle-list li:first-child { border-top: 0; }

.puzzle-row {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  padding: 0.75rem 0;
}

.puzzle-row.on { color: var(--oxblood); }

.puzzle-name {
  display: block;
  font-family: var(--display);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.2;
}

.puzzle-meta { display: block; margin-top: 0.15rem; color: var(--ink-soft); font-size: 0.75rem; }

.icon-btn {
  display: inline-flex;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
}

.icon-btn:hover { color: var(--oxblood); }

.icon { width: 1rem; height: 1rem; }

h3 { margin: 1.5rem 0 0; font-size: 1.25rem; }

@media (min-width: 640px) {
  .wrap { padding-top: 2.5rem; }
  .top-actions { flex: none; }
  .alphabet { grid-template-columns: repeat(13, minmax(0, 1fr)); }
  .card { padding: 1.25rem; }
}