/* Code Word — daily codeword v1.0.0 */
:root {
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --bg: #FAF7F2;
  --bg-soft: #F0EBE3;
  --surface: #FFFFFF;
  --surface-2: #F5F0E8;
  --text: #1C1917;
  --muted: #78716C;
  --border: #E7E0D5;
  --accent: #0D9488;
  --accent-dark: #0F766E;
  --amber: #F59E0B;
  --correct: #059669;
  --wrong: #DC2626;
  --starter: #FEF3C7;
  --cell-size: clamp(28px, 7vw, 38px);
  --decoder-w: 220px;
}

[data-theme="dark"] {
  --bg: #1C1917;
  --bg-soft: #292524;
  --surface: #292524;
  --surface-2: #44403C;
  --text: #FAFAF9;
  --muted: #A8A29E;
  --border: #57534E;
  --starter: #44403C;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
}

html.is-embedded .app-header {
  position: relative;
  top: auto;
  padding: 0.35rem 0.5rem;
}
html.is-embedded .brand-name { font-size: 0.9rem; }
html.is-embedded .stats-bar { padding: 0.25rem 0.5rem; }
html.is-embedded .calendar-wrap { padding: 0 0.5rem 0.35rem; }
html.is-embedded .main { padding: 0 0.5rem 1rem; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}
.icon-btn svg { width: 22px; height: 22px; fill: currentColor; }
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

.brand {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 50%, var(--amber) 50%);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.7rem;
  color: #fff;
}

.brand-name {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-name em { font-style: normal; color: var(--accent); }

.mode-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  flex-shrink: 0;
}

.header-actions { display: flex; gap: 0.35rem; }

.stats-bar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.5rem 0.75rem;
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.stat-pill {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.35rem 0.75rem;
  text-align: center;
  min-width: 64px;
}
.stat-pill .val { display: block; font-weight: 800; font-size: 1rem; color: var(--accent); }
.stat-pill .lbl { font-size: 0.65rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }

.month-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.month-nav button {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text);
}
.month-label { font-size: 0.85rem; font-weight: 700; min-width: 100px; text-align: center; }

.calendar-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 0.75rem 0.5rem;
  overflow-x: auto;
}

.calendar-strip {
  display: flex;
  gap: 0.35rem;
  min-width: min-content;
}

.cal-day {
  flex-shrink: 0;
  width: 42px;
  padding: 0.35rem 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  font-size: 0.72rem;
  color: var(--muted);
}
.cal-day .d { display: block; font-weight: 800; font-size: 0.95rem; color: var(--text); }
.cal-day.is-active { border-color: var(--accent); background: rgba(13,148,136,0.08); }
.cal-day.is-solved { background: rgba(5,150,105,0.12); border-color: var(--correct); }
.cal-day.is-locked { opacity: 0.45; pointer-events: none; }

.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 0.75rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr var(--decoder-w);
  gap: 1rem;
  align-items: start;
}

@media (max-width: 820px) {
  .main { grid-template-columns: 1fr; }
  :root { --decoder-w: 100%; }
}

.puzzle-title {
  grid-column: 1 / -1;
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
  text-align: center;
}

.grid-panel { min-width: 0; }

.codeword-grid-wrap {
  display: flex;
  justify-content: center;
  overflow-x: auto;
  padding: 0.5rem 0;
}

.codeword-grid {
  display: inline-grid;
  gap: 2px;
  background: var(--border);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 2px;
}

.cw-cell {
  width: var(--cell-size);
  height: var(--cell-size);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: clamp(0.75rem, 3vw, 1rem);
  background: #1C1917;
  border: none;
}
.cw-cell.is-block { background: #1C1917; }
.cw-cell.is-play {
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  border: 1px solid var(--border);
  position: relative;
}
.cw-cell.is-play .num {
  position: absolute;
  top: 1px;
  left: 3px;
  font-size: 0.45rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1;
}
.cw-cell.is-play .letter {
  font-size: inherit;
  font-weight: 800;
}
.cw-cell.is-play.is-selected {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  z-index: 2;
}
.cw-cell.is-play.is-starter { background: var(--starter); }
.cw-cell.is-play.is-correct { background: rgba(5,150,105,0.15); }
.cw-cell.is-play.is-wrong { background: rgba(220,38,38,0.12); }
.cw-cell.is-play.is-active-num { box-shadow: inset 0 0 0 2px var(--amber); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  margin-top: 0.75rem;
}

.btn {
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-amber { background: var(--amber); color: #1C1917; border-color: var(--amber); }

.decoder-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem;
}
.decoder-panel h2 {
  margin: 0 0 0.65rem;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.decoder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.3rem;
  max-height: 320px;
  overflow-y: auto;
}
.decoder-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.4rem;
  border-radius: 8px;
  font-size: 0.78rem;
  cursor: pointer;
}
.decoder-row:hover { background: var(--bg-soft); }
.decoder-row.is-active { background: rgba(13,148,136,0.12); outline: 1px solid var(--accent); }
.decoder-row.is-starter { font-weight: 700; }
.decoder-row .d-num {
  width: 22px;
  font-weight: 800;
  color: var(--accent);
  text-align: right;
}
.decoder-row .d-letter {
  width: 20px;
  font-weight: 800;
  text-align: center;
}
.decoder-row .d-used {
  flex: 1;
  font-size: 0.65rem;
  color: var(--muted);
  text-decoration: line-through;
}

.keyboard-wrap {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  justify-content: center;
  padding: 0.5rem 0;
}
.key {
  min-width: 32px;
  height: 42px;
  padding: 0 0.4rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
}
.key:hover { border-color: var(--accent); }
.key.is-used { opacity: 0.35; text-decoration: line-through; }
.key-wide { min-width: 56px; font-size: 0.72rem; }

.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.menu-backdrop.is-open { opacity: 1; pointer-events: auto; }

.menu-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: min(300px, 88vw);
  height: 100%;
  background: var(--surface);
  border-right: 1px solid var(--border);
  z-index: 100;
  transform: translateX(-100%);
  transition: transform 0.25s;
  display: flex;
  flex-direction: column;
}
.menu-panel.is-open { transform: translateX(0); }

.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-weight: 800;
}

.menu-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}
.menu-body h3 {
  margin: 1rem 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.menu-body h3:first-child { margin-top: 0; }
.menu-list { list-style: none; margin: 0; padding: 0; }
.menu-list button {
  width: 100%;
  text-align: left;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  margin-bottom: 0.35rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
}
.menu-list button:hover { border-color: var(--accent); }

.theme-picker .btn.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.muted { color: var(--muted); }
.small { font-size: 0.78rem; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-backdrop[hidden] { display: none; }

.modal {
  background: var(--surface);
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  text-align: center;
  border: 1px solid var(--border);
}
.modal h2 { margin: 0 0 0.5rem; font-size: 1.25rem; }
.modal .points { font-size: 2rem; font-weight: 800; color: var(--accent); margin: 0.5rem 0; }

.toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--text);
  color: var(--bg);
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 300;
  transition: transform 0.25s;
  pointer-events: none;
}
.toast.is-show { transform: translateX(-50%) translateY(0); }