/* Murderdoku — noir sudoku styles */

:root {
  --bg: #0e0c0a;
  --bg-elev: #1c1815;
  --bg-elev-2: #25201b;
  --border: #3a322a;
  --border-strong: #6b5e4d;
  --text: #e8dcc4;
  --text-muted: #8a7e6a;
  --gold: #d4a854;
  --gold-soft: #b8923f;
  --red: #b13c3c;
  --red-soft: #8a2e2e;
  --green: #6b8e3a;
  --shadow: 0 4px 12px rgba(0,0,0,0.5);
  --serif: 'Rye', 'Playfair Display', Georgia, serif;
  --typewriter: 'Special Elite', 'Courier Prime', 'Courier New', monospace;
  --mono: 'Roboto Mono', 'Menlo', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--typewriter);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at top, rgba(212,168,84,0.05) 0%, transparent 60%),
    repeating-linear-gradient(0deg, transparent 0, transparent 2px, rgba(255,255,255,0.012) 2px, rgba(255,255,255,0.012) 3px);
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  min-height: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: env(safe-area-inset-top, 0) 0 env(safe-area-inset-bottom, 0);
}

.screen {
  display: none;
  padding: 1rem;
  animation: fadeIn 0.25s ease-out;
}
.screen.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.topbar h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--gold);
  letter-spacing: 0.02em;
}
.btn-back {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  font-size: 1.1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}
.btn-back:hover { background: var(--bg-elev); border-color: var(--gold); }

/* Hero / title screen */
.hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
}
.logo-mark {
  display: inline-block;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 12px rgba(212,168,84,0.2));
}
.title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 9vw, 4rem);
  margin: 0 0 0.5rem;
  color: var(--text);
  text-shadow: 0 2px 8px rgba(177,60,60,0.3);
  letter-spacing: 0.02em;
}
.title .dot { color: var(--red); }
.tagline {
  font-family: var(--typewriter);
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0 0 2rem;
  font-style: italic;
}
.footnote {
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* Buttons */
.button-row {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 1rem 0;
}
.btn {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-family: var(--typewriter);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 120px;
}
.btn:hover { background: var(--bg-elev-2); border-color: var(--border-strong); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--gold);
  color: var(--bg);
  border-color: var(--gold);
  font-weight: bold;
}
.btn-primary:hover { background: var(--gold-soft); border-color: var(--gold-soft); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn.btn-toggle[aria-pressed="true"] {
  background: var(--gold);
  color: var(--bg);
  border-color: var(--gold);
}

/* Case list */
.case-list {
  display: grid;
  gap: 1rem;
}
.case-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 4px solid var(--red);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--text);
  transition: all 0.15s ease;
}
.case-card:hover {
  background: var(--bg-elev-2);
  border-left-color: var(--gold);
  transform: translateX(2px);
}
.case-card.solved {
  border-left-color: var(--green);
  opacity: 0.7;
}
.case-card-title {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--gold);
  margin-bottom: 0.25rem;
}
.case-card-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.case-card-status {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}
.case-card.solved .case-card-status { color: var(--green); }

/* How-to */
.content {
  padding: 1rem 0.5rem;
}
.content p {
  margin: 0 0 1rem;
  line-height: 1.7;
}
.howto p { font-size: 1.05rem; }
.howto .signature {
  margin-top: 2rem;
  font-style: italic;
  color: var(--text-muted);
  text-align: right;
}

/* Game */
.game-scroll {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-bottom: 2rem;
}
.case-intro {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  padding: 1rem 1.25rem;
  border-radius: 6px;
}
.case-intro .case-year {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.case-intro p { margin: 0 0 0.75rem; }
.case-intro p:last-child { margin-bottom: 0; }
.case-intro .briefing { color: var(--gold); font-style: italic; }

/* Sudoku grid */
.grid-section {
  background: var(--bg-elev);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.sudoku-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  aspect-ratio: 1;
  max-width: 480px;
  margin: 0 auto;
  background: var(--border-strong);
  gap: 1px;
  border: 2px solid var(--gold);
  border-radius: 4px;
  overflow: hidden;
}
.cell {
  background: var(--bg-elev);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: clamp(1rem, 5vw, 1.5rem);
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  position: relative;
  transition: background 0.1s ease;
  user-select: none;
}
.cell.given {
  background: var(--bg-elev-2);
  color: var(--gold);
  font-weight: 700;
  cursor: default;
}
.cell:not(.given):hover { background: var(--bg-elev-2); }
.cell.selected {
  background: rgba(212,168,84,0.25);
  box-shadow: inset 0 0 0 2px var(--gold);
  z-index: 1;
}
.cell.truth-cell::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 3px;
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
  opacity: 0.6;
}
.cell.truth-cell.selected::after { opacity: 1; }
.cell.error {
  background: rgba(177,60,60,0.4) !important;
  animation: shake 0.4s ease;
}
.cell.conflict {
  background: rgba(177,60,60,0.2);
  color: var(--red);
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
.cell.has-notes { font-size: 0; }
.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  width: 100%;
  height: 100%;
  padding: 2px;
  gap: 0;
}
.note {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.cell .note { font-size: 0.5rem; }

/* Box borders via inset shadows */
.cell.box-top { box-shadow: inset 0 2px 0 var(--border-strong); }
.cell.box-left { box-shadow: inset 2px 0 0 var(--border-strong); }
.cell.box-top.box-left { box-shadow: inset 2px 2px 0 var(--border-strong); }
.cell.box-bottom { box-shadow: inset 0 -1px 0 var(--border-strong); }
.cell.box-right { box-shadow: inset -1px 0 0 var(--border-strong); }
.cell.selected.box-top { box-shadow: inset 0 2px 0 var(--border-strong), inset 0 0 0 2px var(--gold); }
.cell.selected.box-left { box-shadow: inset 2px 0 0 var(--border-strong), inset 0 0 0 2px var(--gold); }
.cell.selected.box-bottom { box-shadow: inset 0 -1px 0 var(--border-strong), inset 0 0 0 2px var(--gold); }
.cell.selected.box-right { box-shadow: inset -1px 0 0 var(--border-strong), inset 0 0 0 2px var(--gold); }

/* Numpad */
.numpad {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  max-width: 480px;
  margin: 1rem auto 0;
}
.numpad-btn {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.85rem 0;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.1s ease;
  min-height: 48px;
}
.numpad-btn:hover { background: var(--bg-elev); border-color: var(--gold); }
.numpad-btn:active { transform: scale(0.96); background: var(--gold); color: var(--bg); }
.numpad-erase { color: var(--red); }

/* Control row */
.control-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  max-width: 480px;
  margin: 0.75rem auto 0;
}
.control-row .btn {
  padding: 0.5rem 0.25rem;
  font-size: 0.85rem;
  min-width: 0;
}

/* Status row */
.status-row {
  display: flex;
  justify-content: space-around;
  margin-top: 0.75rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.status { display: inline-flex; align-items: center; gap: 0.4rem; }
.status-icon { font-size: 1rem; }

/* Truth panel */
.truth-panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
}
.truth-group {
  border-bottom: 1px solid var(--border);
  padding: 0.25rem;
}
.truth-group:last-child { border-bottom: none; }
.truth-group summary {
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 4px;
  font-family: var(--serif);
  color: var(--gold);
  font-size: 1.1rem;
}
.truth-group summary::-webkit-details-marker { display: none; }
.truth-group summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 0.5rem;
  color: var(--gold);
  transition: transform 0.15s ease;
}
.truth-group[open] summary::before { transform: rotate(90deg); }
.truth-group summary:hover { background: var(--bg-elev-2); }
.truth-hint {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.truth-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
  padding: 0.5rem;
}
.truth-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--typewriter);
  font-size: 0.9rem;
  transition: all 0.15s ease;
}
.truth-card.revealed {
  border-color: var(--gold);
  background: rgba(212,168,84,0.08);
}
.truth-num {
  font-family: var(--mono);
  font-weight: bold;
  color: var(--gold);
  font-size: 1rem;
  flex-shrink: 0;
  width: 1.5rem;
  text-align: center;
}
.truth-name { color: var(--text); }

/* Reveal screen */
.reveal-content {
  text-align: center;
  padding: 2rem 1rem;
}
.reveal-line {
  font-family: var(--typewriter);
  color: var(--text-muted);
  font-style: italic;
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
}
.reveal-main {
  font-family: var(--serif);
  color: var(--red);
  font-size: clamp(1.5rem, 6vw, 2rem);
  margin: 0;
  line-height: 1.3;
  text-shadow: 0 2px 8px rgba(177,60,60,0.3);
}
.stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0 1.5rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.stat { display: inline-flex; align-items: center; gap: 0.4rem; }

/* Mobile tweaks */
@media (max-width: 480px) {
  .hero { padding: 2rem 0.5rem 1rem; }
  .numpad-btn { font-size: 1.1rem; padding: 0.7rem 0; }
  .control-row .btn { font-size: 0.8rem; padding: 0.5rem 0.15rem; }
  .truth-list { grid-template-columns: 1fr; }
  .stats { gap: 1rem; }
}

@media (min-width: 720px) {
  .numpad { grid-template-columns: repeat(10, 1fr); }
  .control-row { grid-template-columns: repeat(4, 1fr); }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}