:root {
  --blue-deepest: #FFFFFF;
  --blue-deep: #003366;
  --blue-dark: #E6F0F7;
  --blue-mid: #E0E0E0;
  --blue-core: #6699CC;
  --blue-light: #6699CC;
  --blue-soft: #003366;
  --blue-tint: #CCE0F0;
  --orange: #FF6600;
  --orange-dark: #CC5200;
  --white: #FFFFFF;
  --gray-light: #E0E0E0;
  --font-ui: "Montserrat", sans-serif;
  --font-data: "Montserrat", sans-serif;
}





* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--blue-deepest);
  color: var(--gray-light);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}
button { font-family: inherit; }
h1, h2, h3 { color: var(--white); margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.app { min-height: 100%; display: flex; flex-direction: column; outline: none; }

.bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; gap: 12px;
}
.bar .brand { color: var(--white); font-weight: 700; font-size: 17px; }
.bar .brand small { color: var(--blue-soft); font-weight: 400; margin-left: 10px; }
.bar-actions { display: flex; gap: 8px; }

.btn {
  font-size: 15px; font-weight: 600; padding: 10px 18px; border-radius: 8px;
  border: 1px solid transparent; cursor: pointer; color: var(--gray-light);
  background: var(--blue-dark); border-color: var(--blue-mid);
  transition: background 120ms ease;
}
.btn:hover { background: var(--blue-mid); }
.btn:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 2px; }
.btn.cta { background: var(--orange); border-color: var(--orange); color: var(--white); }
.btn.cta:hover { background: var(--orange-dark); border-color: var(--orange-dark); }
.btn.small { font-size: 13px; padding: 7px 12px; font-weight: 500; }

.screen { flex: 1; display: flex; flex-direction: column; min-height: 0; }

/* Menu */
.menu { align-items: center; justify-content: center; padding: 24px 20px 40px; text-align: center; }
.menu h1 { font-size: clamp(34px, 5vw, 54px); font-weight: 800; }
.menu .lede { color: var(--blue-soft); margin-top: 8px; font-size: 18px; }
.cards {
  display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin-top: 34px; width: 100%; max-width: 1240px;
}
.cards .card { flex: 0 1 226px; }
.card {
  background: var(--blue-deep); border: 1px solid var(--blue-mid); border-radius: 16px;
  padding: 30px 26px 24px; display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.card h2 { font-size: 28px; }
.card .desc { color: var(--blue-soft); font-size: 15px; }
.card .best { margin-top: auto; }
.card .best { color: var(--gray-light); font-size: 15px; }
.card .best b { font-family: var(--font-data); font-weight: 600; color: var(--white); }
.card .btn.cta { margin-top: 8px; min-width: 170px; }
.card .hint { color: var(--blue-soft); font-size: 13px; }
.menu .foot { color: var(--blue-soft); font-size: 14px; margin-top: 40px; max-width: 640px; }

/* Game screens */
.game-grid {
  flex: 1; min-height: 0; display: grid; gap: 20px; padding: 0 20px 16px;
  grid-template-columns: 200px minmax(0, 1fr) 200px;
  width: 100%; max-width: 1080px; margin: 0 auto;
}
.game-grid.single { grid-template-columns: minmax(0, 1fr); }
.panel {
  background: var(--blue-deep); border: 1px solid var(--blue-mid); border-radius: 12px; padding: 16px;
}
.side { display: flex; flex-direction: column; gap: 18px; align-self: start; }
.label { color: var(--blue-soft); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.glyph { display: block; width: 96px; height: 60px; margin: 8px auto 0; }
.stats { display: grid; gap: 14px; margin: 0; }
.stats div { display: flex; flex-direction: column; gap: 2px; }
.stats dt { color: var(--blue-soft); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.stats dd { margin: 0; font-family: var(--font-data); font-weight: 600; font-size: 26px; color: var(--white); line-height: 1.1; }
.controls { color: var(--blue-soft); font-size: 13px; line-height: 1.6; }
.controls b { color: var(--gray-light); font-weight: 600; }

.strip {
  display: flex; flex-wrap: wrap; gap: 8px 28px; align-items: baseline;
  padding: 0 20px 12px; color: var(--blue-soft); font-size: 14px;
}
.strip b { font-family: var(--font-data); font-weight: 600; color: var(--white); font-size: 18px; margin-left: 6px; }
.strip .spacer { flex: 1; }

.field-wrap { position: relative; min-height: 0; min-width: 0; display: flex; justify-content: center; align-items: flex-start; }
.field-wrap canvas { display: block; max-width: 100%; border: 1px solid var(--blue-mid); border-radius: 6px; touch-action: none; }
.overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 10px; text-align: center; padding: 20px;
  background: rgba(0, 26, 51, 0.86); border-radius: 6px;
}
.overlay.panelled { background: transparent; justify-content: flex-start; padding-top: 5%; }
.overlay.bottom { background: transparent; justify-content: flex-end; padding-bottom: 3%; }
.overlay .box {
  background: var(--blue-deep); border: 1px solid var(--blue-mid); border-radius: 12px;
  padding: 18px 24px; display: flex; flex-direction: column; gap: 10px; align-items: center; max-width: 90%;
}
.overlay h2 { font-size: clamp(26px, 4vw, 40px); }
.overlay .line { color: var(--gray-light); font-size: 17px; white-space: pre-wrap; }
.overlay .line b { font-family: var(--font-data); font-weight: 600; color: var(--white); }
.overlay .note { color: var(--blue-light); font-size: 15px; }
.overlay .actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }

/* Assembly setup */
.setup { flex: 1; display: flex; align-items: flex-start; justify-content: center; padding: 8px 20px 24px; }
.setup-panel { width: 100%; max-width: 640px; display: flex; flex-direction: column; gap: 14px; padding: 26px 28px; text-align: center; align-items: center; }
.setup-panel.over { border-color: var(--blue-light); background: var(--blue-dark); }
.setup-panel h2 { font-size: 30px; }
.setup-panel .desc { color: var(--blue-soft); }
.setup-panel .note { color: var(--gray-light); font-size: 14px; max-width: 520px; }
.pick-row, .level-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.thumb { display: block; border: 1px solid var(--blue-mid); border-radius: 8px; background: var(--blue-deepest); }
.btn.level { display: flex; flex-direction: column; align-items: center; gap: 2px; min-width: 150px; padding: 10px 16px; }
.btn.level small { font-weight: 400; font-size: 12px; color: var(--blue-soft); }
.btn.level[aria-pressed="true"] { background: var(--blue-mid); border-color: var(--blue-light); color: var(--white); }
.btn.level[aria-pressed="true"] small { color: var(--blue-tint); }
.btn.cta:disabled { background: var(--blue-dark); border-color: var(--blue-mid); color: var(--blue-soft); cursor: default; }
.play { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.board-area { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.board-area .field-wrap { align-self: stretch; }
.result { width: 100%; max-width: 520px; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; padding: 16px 22px; }
.result h2 { font-size: 30px; }
.result .line { color: var(--gray-light); white-space: pre-wrap; }
.result .line, .result .note { font-size: 15px; }
.result .note { color: var(--blue-light); }
.result .actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.strip .btn.small { margin-left: 4px; }

/* Ronda */
.rules-list { text-align: left; margin: 0; padding-left: 20px; color: var(--gray-light); font-size: 14px; line-height: 1.55; max-width: 540px; }
.rules-list li + li { margin-top: 4px; }
.rules-box { max-width: 620px; align-items: stretch; text-align: left; }
.rules-box h2 { text-align: center; }
.rules-box .actions { justify-content: center; }
.rd-toast {
  position: absolute; left: 50%; transform: translateX(-50%); z-index: 2;
  background: var(--blue-deep); border: 1px solid var(--blue-mid); border-radius: 10px;
  padding: 8px 14px; width: max-content; max-width: min(92%, 480px); text-align: center; pointer-events: none;
}
.rd-toast b { color: var(--white); font-weight: 600; font-size: 15px; }
.rd-toast small { display: block; color: var(--blue-soft); font-size: 13px; margin-top: 3px; }

/* Touch controls: shown only on coarse pointers */
.touch { display: none; gap: 8px; padding: 6px 12px 14px; }
.app.touch-enabled .touch { display: grid; }
.touch.six { grid-template-columns: repeat(6, 1fr); }
.touch.pad { grid-template-columns: repeat(3, 72px); grid-template-rows: repeat(2, 56px); justify-content: center; }
.tbtn {
  min-height: 56px; border-radius: 10px; border: 1px solid var(--blue-mid); background: var(--blue-dark);
  color: var(--gray-light); font-size: 14px; font-weight: 600; touch-action: none; user-select: none;
  -webkit-user-select: none; -webkit-tap-highlight-color: transparent;
}
.tbtn:active { background: var(--blue-mid); }
.touch.pad .up { grid-column: 2; grid-row: 1; }
.touch.pad .left { grid-column: 1; grid-row: 2; }
.touch.pad .down { grid-column: 2; grid-row: 2; }
.touch.pad .right { grid-column: 3; grid-row: 2; }

@media (max-width: 820px) {
  .bar { padding: 8px 12px; }
  .bar .brand small { display: none; }
  .bar .btn.small { padding: 6px 10px; font-size: 13px; }
  .game-grid { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 10px 6px; align-content: flex-start; align-items: flex-start; }
  .game-grid .field-wrap { flex-basis: 100%; width: 100%; order: 1; }
  .side { display: contents; }
  .side .panel { padding: 8px 10px; }
  .side .controls { display: none; }
  .side.left .panel:first-child { order: 2; }
  .side.left .stats { order: 3; flex: 1; }
  .side.right .panel { order: 4; }
  .glyph { width: 60px; height: 40px; margin: 2px auto 0; }
  .label { font-size: 10px; }
  .stats { grid-template-columns: repeat(4, 1fr); gap: 4px; }
  .stats dt { font-size: 10px; }
  .stats dd { font-size: 18px; }
  .strip { padding: 0 12px 8px; gap: 6px 14px; font-size: 13px; }
  .strip .spacer { flex-basis: 100%; }
  .strip .btn.small { margin-left: 0; padding: 6px 10px; }
  .setup { padding: 4px 12px 16px; }
  .setup-panel { padding: 20px 16px; }
  .btn.level { min-width: 0; flex: 1; padding: 8px 8px; }
  .strip .keys { display: none; }
  .card { padding: 22px 18px; }
  .cards .card { flex-basis: 100%; }
  .card .desc { min-height: 0; }
  .cards { margin-top: 24px; gap: 16px; }
  .menu .foot { margin-top: 24px; }
}