:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #9ca3af;
  --border: #e5e7eb;
  --surface: #f9fafb;
  --accent: #2563eb;
  --success: #059669;
  --danger: #dc2626;
  --font: 'Courier New', Courier, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
}

/* ── Utility ── */
.hidden  { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Page wrap ── */
.page {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  animation: fadeUp 0.4s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Fixed chrome ── */
.badge {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  z-index: 10;
}

.home-link {
  position: fixed;
  top: 1.2rem;
  right: 1.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-decoration: none;
  z-index: 10;
}
.home-link:hover { color: var(--text); }

/* ── Level title ── */
h1.title {
  font-size: clamp(1.25rem, 5vw, 2rem);
  font-weight: normal;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--text);
  line-height: 1.2;
}

/* ── Clue ── */
.clue {
  font-size: clamp(0.95rem, 3vw, 1.05rem);
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.05em;
  line-height: 1.8;
  max-width: 380px;
}

/* ── Divider ── */
.line {
  width: 40px;
  height: 1px;
  background: var(--border);
}

/* ── Buttons ── */
.btn {
  background: transparent;
  border: 1px solid var(--text);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  padding: 0.8rem 2.2rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
}
.btn:hover, .btn:active { background: var(--text); color: var(--bg); }

.btn-accent {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-accent:hover, .btn-accent:active { background: var(--accent); color: #fff; }

/* ── Answer input ── */
.answer-wrap { width: 100%; max-width: 260px; }
.answer-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  letter-spacing: 0.08em;
  padding: 0.5rem 0;
  text-align: center;
  outline: none;
  -webkit-appearance: none;
  transition: border-color 0.15s;
}
.answer-input:focus { border-color: var(--text); }
.answer-input::placeholder { color: var(--border); }

/* ── Orb ── */
@keyframes orbPulse {
  0%   { transform: scale(1);    box-shadow: 0 0 0 0 rgba(17,17,17,0.25); }
  50%  { transform: scale(1.08); box-shadow: 0 0 0 18px rgba(17,17,17,0); }
  100% { transform: scale(1);    box-shadow: 0 0 0 0 rgba(17,17,17,0); }
}
.orb {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  animation: orbPulse 1.8s ease-in-out infinite;
}
.orb:active { transform: scale(0.94); animation: none; }

/* ── Progress bar ── */
.progress-track {
  width: 180px;
  height: 2px;
  background: var(--border);
}
.progress-fill {
  height: 100%;
  background: var(--text);
  width: 0%;
  transition: width 0.05s linear;
}

/* ── Counter ── */
.counter {
  font-size: 5rem;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.08s;
  line-height: 1;
}
.counter:active { transform: scale(0.92); }

/* ── Dots grid ── */
.dots-grid { display: grid; gap: 1.25rem; }
.dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.dot.active  { background: var(--accent); }
.dot.correct { background: var(--success); }
.dot.wrong   { background: var(--danger); animation: shake 0.25s; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  33%     { transform: translateX(-5px); }
  66%     { transform: translateX(5px); }
}

/* ── Source viewer modal ── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(255,255,255,0.92);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 560px;
  max-height: 75vh;
  overflow-y: auto;
  padding: 1.5rem;
}
.modal-close {
  float: right;
  background: none; border: none;
  font-family: var(--font); font-size: 1.1rem;
  cursor: pointer; color: var(--muted); line-height: 1;
}
.modal-code {
  font-size: 0.7rem;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.7;
  margin-top: 1rem;
}
.modal-code .hl { color: var(--success); font-weight: bold; }

/* ── Drag & drop ── */
.drag-item { cursor: grab; user-select: none; -webkit-tap-highlight-color: transparent; }
.drag-item.dragging { opacity: 0.4; cursor: grabbing; }
.drop-zone {
  border: 1px dashed var(--border);
  transition: border-color 0.15s, background 0.15s;
}
.drop-zone.over { border-color: var(--accent); background: rgba(37,99,235,0.04); }
.drop-zone.success { border-color: var(--success); background: rgba(5,150,105,0.04); }

/* ── Swipe panels ── */
.swipe-container { width: 100%; overflow: hidden; }
.swipe-inner { display: flex; transition: transform 0.4s ease; width: 200%; }
.swipe-panel {
  width: 50%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1.5rem; min-height: 200px;
}

/* ── Canvas ── */
canvas {
  touch-action: none;
  border: 1px solid var(--border);
  background: var(--surface);
  display: block;
}

/* ── Word search ── */
.ws-grid { display: grid; border: 1px solid var(--border); user-select: none; width: fit-content; }
.ws-cell {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem;
  cursor: pointer;
  border: 1px solid var(--border);
  color: var(--text);
  transition: background 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.ws-cell.selected { background: var(--text); color: var(--bg); }
.ws-cell.found    { background: var(--surface); color: var(--muted); }

/* ── Crossword ── */
.cw-grid { display: inline-grid; gap: 2px; }
.cw-cell { width: 36px; height: 36px; background: var(--surface); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; }
.cw-cell.black { background: var(--text); border-color: var(--text); }
.cw-input { width:100%; height:100%; background:transparent; border:none; font-family:var(--font); font-size:0.9rem; text-align:center; outline:none; text-transform:uppercase; color:var(--text); }
.cw-cell.hl { background: rgba(37,99,235,0.08); }
.cw-cell.hl .cw-input { color: var(--accent); }

/* ── Simon Says ── */
.simon-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; width: 200px; height: 200px; }
.simon-btn { border-radius: 6px; border: none; cursor: pointer; opacity: 0.3; transition: opacity 0.1s; -webkit-tap-highlight-color: transparent; }
.simon-btn.lit { opacity: 1; }
.simon-btn[data-color="red"]    { background: #ef4444; }
.simon-btn[data-color="blue"]   { background: #3b82f6; }
.simon-btn[data-color="green"]  { background: #22c55e; }
.simon-btn[data-color="yellow"] { background: #eab308; }

/* ── Phone keypad ── */
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; width: 200px; }
.key { background: var(--surface); border: 1px solid var(--border); padding: 0.55rem 0; text-align: center; }
.key-num { font-size: 1rem; color: var(--text); display: block; }
.key-letters { font-size: 0.5rem; color: var(--muted); letter-spacing: 0.08em; }

/* ── URL hint box ── */
.url-box {
  font-size: 0.78rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.url-box em { color: var(--accent); font-style: normal; font-weight: bold; }

/* ── Landing ── */
.logo {
  font-size: clamp(2rem, 10vw, 4rem);
  letter-spacing: 0.3em;
  font-weight: normal;
  color: var(--text);
}
.tagline {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--muted);
}

/* ── Responsive ── */
@media (max-width: 400px) {
  .ws-cell { width: 28px; height: 28px; font-size: 0.7rem; }
  .simon-grid { width: 170px; height: 170px; }
  .clue { font-size: 1rem; }
  .btn  { font-size: 0.875rem; padding: 0.85rem 2rem; }
}