:root {
  color-scheme: dark;
  --font-ui: 'Trebuchet MS', 'Segoe UI', Arial, sans-serif;
  --ink: #163330;
  --cream: #f4f1dc;
  --lime: #dcf78a;
  --muted: #b7c3af;
}
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; }
body { background: var(--ink); color: var(--cream); font-family: var(--font-ui); }
button { font: inherit; cursor: pointer; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
button:focus-visible, canvas:focus-visible { outline: 3px solid var(--lime); outline-offset: 5px; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }
.arcade { position: relative; width: 100%; height: 100vh; height: 100dvh; overflow: hidden; isolation: isolate; }
.arcade:fullscreen { width: 100%; height: 100%; }
.stage, canvas, .vignette { position: absolute; inset: 0; width: 100%; height: 100%; }
.stage { background: #f4dcb6; }
canvas { display: block; touch-action: none; outline-offset: -5px !important; }
.vignette { pointer-events: none; background: linear-gradient(#16333033, transparent 22%, transparent 80%, #16333033); }
.screen { position: absolute; inset: 0; z-index: 2; overflow: auto; overscroll-behavior: contain; }
.label, .flight-hint { font-family: var(--font-ui); font-size: 12px; font-weight: bold; letter-spacing: 0; }
.primary { min-height: 50px; padding: 14px 21px; border-radius: 1px; border: 2px solid var(--ink); display: flex; justify-content: center; align-items: center; font-size: 15px; font-weight: bold; }
.primary { background: #ffd15e; color: var(--ink); box-shadow: 4px 4px 0 var(--ink); }
.primary:hover { background: #ffe198; }
.arcade[data-theme="mars"] { --lime: #ffd39a; --muted: #d0b9ab; }
.arcade[data-theme="mars"] .panel { --ink: #252d43; }
.arcade[data-theme="mars"] .vignette { background: linear-gradient(#291f2c33, transparent 22%, transparent 80%, #291f2c33); }
.hud { position: absolute; z-index: 1; top: max(24px, env(safe-area-inset-top)); left: max(28px, env(safe-area-inset-left)); right: max(88px, calc(env(safe-area-inset-right) + 70px)); display: flex; align-items: flex-start; justify-content: space-between; pointer-events: none; }
.scoreboard { display: flex; gap: 24px; padding: 12px 18px; color: var(--ink); background: #fff0c5f2; border: 2px solid var(--ink); border-radius: 2px; box-shadow: 3px 3px 0 #16333066; }
.scoreboard > div { display: flex; flex-direction: column; gap: 4px; }
.label { font-size: 12px; letter-spacing: 0; }
.scoreboard strong { font-size: 34px; line-height: 1; letter-spacing: -1px; font-variant-numeric: tabular-nums; }
.scoreboard .best strong { font-size: 24px; margin-top: 5px; color: #53674f; }
.icon-button { display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px; border: 1px solid #d5e5c454; border-radius: 2px; color: var(--cream); background: #163330ef; font-size: 21px; pointer-events: auto; }
.icon-button:hover { background: #2c4e40; }
.fullscreen { position: absolute; z-index: 4; right: max(28px, env(safe-area-inset-right)); top: max(24px, env(safe-area-inset-top)); font-size: 28px; }
.centered-screen { display: grid; place-items: center; padding: max(22px, env(safe-area-inset-top)) max(22px, env(safe-area-inset-right)) max(22px, env(safe-area-inset-bottom)) max(22px, env(safe-area-inset-left)); background: #102d2ab3; backdrop-filter: blur(7px); }
.panel { width: min(420px, 100%); padding: 30px; border-radius: 1px; border: 2px solid var(--ink); background: #fff0c5; color: var(--ink); box-shadow: 8px 9px 0 #081f1ac9; text-align: center; }
.panel button:focus-visible { outline-color: var(--ink); }
h2 { font: italic 900 clamp(32px, 4vw, 42px)/1.08 Impact, 'Arial Black', sans-serif; margin: 0 0 16px; letter-spacing: -.5px; }
.panel > p { font-size: 14px; color: var(--ink); line-height: 1.5; margin: 0 0 25px; }
.help-panel { width: min(460px, 100%); }
.help-panel .primary { width: 100%; }
.instructions { list-style: none; padding: 0; margin: 25px 0 20px; text-align: left; display: grid; gap: 18px; }
.instructions li { display: flex; gap: 15px; }
.instructions li > span { font: 900 30px/1 Impact, 'Arial Black', sans-serif; color: #a33e21; padding-top: 2px; }
.instructions strong { font-size: 15px; }
.instructions p { color: var(--ink); font-size: 14px; line-height: 1.45; margin: 5px 0 0; }
.panel .help-note { color: var(--ink) !important; font-size: 12px !important; border-top: 1px solid #193b3540; padding-top: 15px; line-height: 1.45 !important; }
.flight-hint { position: absolute; pointer-events: none; bottom: max(30px, env(safe-area-inset-bottom)); left: 0; width: 100%; text-align: center; color: var(--cream); text-shadow: 0 1px 5px var(--ink); }
.toast { position: absolute; z-index: 5; bottom: max(24px, env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); width: max-content; max-width: 90%; padding: 12px 18px; border-radius: 8px; background: var(--ink); color: var(--cream); box-shadow: 0 3px 20px #0003; font-size: 12px; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
@media (orientation: portrait) {
  .hud { left: max(16px, env(safe-area-inset-left)); right: max(70px, calc(env(safe-area-inset-right) + 58px)); top: max(16px, env(safe-area-inset-top)); }
  .hud { align-items: center; }
  .scoreboard { flex: 1; min-width: 0; min-height: 84px; margin-right: 16px; padding: 10px 14px; gap: 18px; }
  .scoreboard > div { flex: 1; min-width: 0; flex-direction: column; justify-content: center; gap: 4px; }
  .scoreboard > div:first-child { flex: 1.25; }
  .scoreboard .best { border-left: 1px solid #193b3544; padding-left: 16px; }
  .label { font-size: 11px; letter-spacing: 0; }
  .scoreboard strong { font: 900 40px/1 Impact, 'Arial Black', sans-serif; letter-spacing: 0; }
  .scoreboard .best strong { font-size: 26px; margin-top: 16px; }
  .fullscreen { top: max(16px, env(safe-area-inset-top)); right: max(16px, env(safe-area-inset-right)); }
  .panel { padding: 28px 24px; }
  .arcade[data-screen="playing"] .fullscreen { top: max(36px, calc(env(safe-area-inset-top) + 20px)); }
}
@media (max-width: 380px) and (orientation: portrait) {
  .scoreboard { gap: 12px; }
  .scoreboard > div:first-child { flex: 1.5; }
  .scoreboard strong { font-size: clamp(32px, 10vw, 38px); }
  .scoreboard .best { padding-left: 10px; }
  .scoreboard .best strong { font-size: 20px; margin-top: 12px; }
}
@media (max-height: 570px) and (orientation: landscape) {
  .hud { top: max(12px, env(safe-area-inset-top)); left: max(16px, env(safe-area-inset-left)); right: max(70px, calc(env(safe-area-inset-right) + 58px)); }
  .fullscreen { top: max(12px, env(safe-area-inset-top)); right: max(16px, env(safe-area-inset-right)); }
  .scoreboard { padding: 9px 15px; }
  .scoreboard strong { font-size: 25px; }
  .scoreboard .best strong { font-size: 20px; margin: 2px 0 0; }
  .centered-screen { padding-top: 15px; padding-bottom: 15px; }
  .panel { padding: 20px 28px; width: min(480px, 100%); }
  h2 { font-size: 30px; margin-bottom: 8px; }
  .panel > p { margin-bottom: 15px; }
  .help-panel { width: min(650px, 100%); }
  .instructions { grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 15px 0; }
  .instructions li { gap: 8px; }
  .instructions p { font-size: 12px; }
  .help-panel .primary { min-height: 40px; padding: 10px 20px; }
  .panel .help-note { margin-bottom: 12px !important; padding-top: 10px; }
}

.starting-mode { border: 0; padding: 0; margin: 5px 0 0; min-width: 0; }
.starting-mode legend { padding: 0; margin-bottom: 9px; font: bold 13px var(--font-ui); letter-spacing: 0; color: var(--ink); text-align: left; }
.mode-options { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.mode-options label { position: relative; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.mode-options input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.mode-options label > span { display: flex; align-items: center; justify-content: center; gap: 9px; min-height: 44px; border: 2px solid #193b354d; border-radius: 1px; background: transparent; color: var(--ink); font-size: 15px; font-weight: bold; }
.mode-options input:checked + span { background: #ffd15e; border-color: var(--ink); color: var(--ink); box-shadow: 2px 2px 0 var(--ink); }
.mode-options input:focus-visible + span { outline: 3px solid var(--ink); outline-offset: 3px; }
.mode-options label:hover > span { border-color: var(--ink); }
.starting-mode p { font-size: 13px; font-weight: normal; color: var(--ink); margin: 10px 0 0; line-height: 1.4; text-align: left; }
@media (max-height: 570px) and (orientation: landscape) {
  .starting-mode { margin-top: 0; }
  .starting-mode legend { font-size: 12px; margin-bottom: 7px; }
  .starting-mode p { margin-top: 7px; font-size: 12px; }
}

@media (max-height: 700px) and (orientation: portrait) {
  .starting-mode p { font-size: 12px; margin-top: 8px; }
}
@media (max-height: 650px) and (orientation: portrait) {
  .help-panel { padding: 22px 20px; }
  .instructions { gap: 14px; margin: 18px 0 16px; }
  .instructions p { font-size: 13px; line-height: 1.4; }
}
@media (max-height: 350px) and (orientation: landscape) {
  .help-panel { width: min(700px, 100%); padding: 12px 24px; }
  .help-panel h2 { font-size: 28px; }
  .help-panel .instructions { margin: 8px 0; }
  .help-panel .instructions p { line-height: 1.4; }
  .help-panel .help-note { font-size: 12px !important; padding-top: 8px; margin-bottom: 10px !important; }
}