:root {
  --navy: #0b2545; --sea: #13a4a4; --sand: #f4efe6; --coral: #ff6b57;
  color-scheme: light;
}
* { box-sizing: border-box; }
body {
  margin: 0; padding: 0 12px env(safe-area-inset-bottom);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--sand); color: var(--navy);
  max-width: 480px; margin-inline: auto;
  -webkit-text-size-adjust: 100%;
}
header { padding: 14px 0 8px; }
h1 { margin: 0; font-size: 1.35rem; letter-spacing: .02em; }
header p { margin: 4px 0 0; font-size: .85rem; opacity: .75; }
h2 { margin: 0 0 6px; font-size: 1.1rem; }

.hud { display: flex; align-items: center; gap: 10px; font-variant-numeric: tabular-nums; font-size: .9rem; }
.hud span:first-child { font-weight: 600; }
#windlbl { margin-left: auto; opacity: .8; }

button {
  font: inherit; min-height: 44px; min-width: 44px; padding: 0 16px;
  border: 0; border-radius: 10px; background: var(--navy); color: var(--sand);
  cursor: pointer; touch-action: manipulation;
}
#mute { background: none; color: var(--navy); padding: 0; font-size: 1.2rem; }
#tack { background: var(--coral); width: 100%; margin-top: 8px; }
#share { background: var(--sea); }

#scene {
  display: block; width: 100%; max-width: 320px; margin: 4px auto;
  touch-action: none; user-select: none; -webkit-user-select: none;
}
#hull { fill: #fff; stroke: var(--navy); stroke-width: 2.5; }
#centreline { stroke: var(--navy); stroke-width: 1; stroke-dasharray: 3 4; opacity: .3; }
#windarrow line { stroke: var(--sea); stroke-width: 3; }
#windarrow polygon { fill: var(--sea); }
#boom { stroke: var(--navy); stroke-width: 5; stroke-linecap: round; }
#sail { fill: none; stroke: var(--navy); stroke-width: 1.5; opacity: .45; }
#grip { fill: var(--coral); }
#mast { fill: var(--navy); }
#rig.luffing #boom, #rig.luffing #sail { stroke: var(--coral); }
#rig.powered #boom, #rig.powered #sail { stroke: var(--sea); }

#meter { position: relative; height: 14px; border-radius: 7px; background: #dcd4c6; margin: 10px 0 6px; }
#zone { position: absolute; inset: 0 41.1%; background: var(--sea); border-radius: 7px; opacity: .55; }
#pip { position: absolute; top: -3px; left: 50%; width: 6px; height: 20px; margin-left: -3px; border-radius: 3px; background: var(--navy); }
#state { margin: 0; font-weight: 600; }
#holdbar { height: 6px; border-radius: 3px; background: #dcd4c6; margin-top: 6px; overflow: hidden; }
#hold { height: 100%; width: 0; background: var(--sea); }

#result { padding: 8px 0 4px; }
#total { font-size: 1.3rem; font-weight: 700; margin: 0 0 4px; }
#grid { font-size: 1.5rem; letter-spacing: 2px; margin: 0 0 4px; }
#streak { margin: 0 0 10px; opacity: .75; font-size: .9rem; }
#sharetext { width: 100%; margin-top: 8px; font: inherit; }
footer { padding: 18px 0 24px; font-size: .9rem; }
footer a { color: var(--navy); }