/* Tilt Up: retro-minimal. Flat colors, hard 2px borders, monospace, no gradients. */
:root {
  --bg: #121418;
  --panel: #1a1d22;
  --line: #2c3139;
  --ink: #e9e4d4;
  --dim: #6f7682;
  --accent: #ffb43b;   /* goal / highlights */
  --cool: #6fd3c4;     /* secondary */
  --danger: #ff5d5d;   /* ceiling warning / loss */
  --font: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 12px/1.35 var(--font);
}

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

.wrap {
  display: flex;
  gap: 12px;
  padding: 12px;
  width: 600px;
}

/* ---------- board ---------- */
.board { display: flex; flex-direction: column; gap: 6px; }

.hud {
  display: flex;
  justify-content: space-between;
  color: var(--dim);
  font-size: 11px;
  letter-spacing: .06em;
}
#hudTime { color: var(--ink); }

.screen {
  position: relative;
  border: 2px solid var(--line);
  line-height: 0;
}

canvas {
  display: block;
  width: 340px;
  height: 480px;
  image-rendering: pixelated;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  line-height: 1.35;
  pointer-events: none;
  text-align: center;
}
.overlay:empty { display: none; }
.overlay .tag {
  background: var(--bg);
  border: 2px solid var(--line);
  padding: 6px 10px;
  letter-spacing: .1em;
}
.overlay .tag.blink { animation: blink 1s steps(2, start) infinite; }

.card {
  pointer-events: auto;
  width: 250px;
  background: var(--bg);
  border: 2px solid var(--ink);
  padding: 14px 12px 12px;
  display: grid;
  gap: 8px;
}
.card .big { font-size: 22px; letter-spacing: .12em; color: var(--accent); }
.card .stat { font-size: 14px; }
.card .sub { color: var(--dim); }
.card .new { color: var(--cool); }
.card .big.lose { color: var(--danger); }
.card .btns { display: flex; gap: 6px; justify-content: center; }

.pads { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.pad {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 6px 0;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 8px;
  user-select: none;
  touch-action: none;
}
.pad b { font-size: 16px; color: var(--accent); }
.pad span { color: var(--dim); font-size: 10px; letter-spacing: .08em; }
.pad.on { background: var(--line); border-color: var(--ink); }

/* ---------- side panel ---------- */
.side {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: .18em;
  font-weight: 700;
}
h1 span { color: var(--accent); margin-left: 6px; }

.group { display: flex; flex-direction: column; gap: 6px; }
.group.fill { flex: 1; min-height: 0; }
.group label, .group .label { color: var(--dim); font-size: 10px; letter-spacing: .14em; }

.row { display: flex; gap: 6px; align-items: stretch; }
.grow { flex: 1; min-width: 0; }

.btn {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 5px 8px;
  cursor: pointer;
  text-align: left;
  letter-spacing: .06em;
}
.btn:hover, .btn:focus-visible { border-color: var(--dim); outline: none; }
.btn.wide, .btn.grow { display: flex; justify-content: space-between; }
.btn.small { padding: 4px 6px; font-size: 11px; }
select.btn { padding: 4px; }

kbd {
  font: inherit;
  color: var(--accent);
}

code {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 4px 6px;
  color: var(--accent);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

input {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 4px 6px;
  outline: none;
}
input:focus { border-color: var(--dim); }
input::placeholder { color: var(--dim); }

.toast { margin: 0; min-height: 15px; color: var(--cool); font-size: 11px; }

.saved {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 150px;
  border-top: 2px solid var(--line);
}
.saved li {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid var(--line);
}
.saved li button { background: none; border: 0; color: var(--dim); cursor: pointer; padding: 0 2px; }
.saved li button:hover, .saved li button:focus-visible { color: var(--ink); outline: none; }
.saved li .s { flex: 1; min-width: 0; color: var(--ink); text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.saved li .s:hover, .saved li .s:focus-visible { color: var(--accent); }
.saved li .t { color: var(--dim); font-size: 11px; }
.saved .empty { color: var(--dim); font-size: 11px; border: 0; }

.keys {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px 8px;
  color: var(--dim);
  font-size: 10px;
}

.link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--dim);
  cursor: pointer;
  text-align: left;
  font-size: 11px;
}
.link:hover { color: var(--ink); }

/* ---------- full tab mode ---------- */
body.tab .wrap { width: auto; justify-content: center; padding-top: 4vh; }
body.tab canvas { width: auto; height: min(78vh, 720px); aspect-ratio: 170 / 240; }
body.tab .side { flex: 0 0 240px; }
body.tab #btnTab { display: none; }

/* ---------- web build (GitHub Pages): install CTA, phone layout ---------- */
.webonly { display: none; }
body.web .webonly { display: flex; flex-direction: column; gap: 8px; }
body.web #btnTab { display: none; }
.cta { color: var(--bg); background: var(--accent); border-color: var(--accent); text-decoration: none; font-weight: 700; }
.cta:hover, .cta:focus-visible { border-color: var(--ink); }

/* Phones and narrow windows: board on top (sized to the screen), panel below, big touch pads. */
@media (max-width: 640px) {
  body.tab .wrap { flex-direction: column; align-items: center; padding: 8px 16px 24px; }
  body.tab canvas { width: min(calc(100vw - 36px), calc((100svh - 130px) * 170 / 240)); height: auto; }
  body.tab .board { width: 100%; align-items: center; }
  body.tab .hud, body.tab .pads { width: min(calc(100vw - 32px), calc((100svh - 130px) * 170 / 240 + 4px)); }
  body.tab .pad { padding: 14px 0; }
  body.tab .side { flex: none; width: 100%; max-width: 360px; }
  body.tab .card { width: min(250px, 90%); }
}
/* Touch screens have no J/K keys: hide the keyboard hints. */
@media (pointer: coarse) { body.tab .keys { display: none; } }

@keyframes blink { to { visibility: hidden; } }

@media (prefers-reduced-motion: reduce) {
  .overlay .tag.blink { animation: none; }
}