* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow: hidden; }
body {
  background: radial-gradient(circle at 18% 14%, #2a5c3e 0, transparent 28%), linear-gradient(135deg, #06130d, #11251a 55%, #07110c);
  color: #f6fff7;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button { font: inherit; }
.game-shell {
  width: min(1120px, 100vw);
  height: min(780px, 100dvh);
  margin: 0 auto;
  padding: clamp(10px, 2vw, 18px);
  display: grid;
  place-items: stretch;
}
.screen {
  min-height: 0;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: clamp(20px, 3vw, 30px);
  background: linear-gradient(180deg, rgba(10,31,20,.92), rgba(4,15,11,.96));
  box-shadow: 0 22px 70px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.08);
  overflow: hidden;
}
.hidden { display: none !important; }
.menu-screen, .result-screen { display: grid; place-items: center; padding: clamp(18px, 4vw, 38px); }
.hero-card, .result-card { width: min(760px, 100%); }
.eyebrow { margin: 0 0 8px; color: #9ce8b5; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
h1, h2 { margin: 0; line-height: 1.02; font-size: clamp(44px, 9vw, 92px); letter-spacing: -0.06em; }
h2 { font-size: clamp(38px, 7vw, 74px); }
.lead { margin: 16px 0 0; color: #dceee0; font-size: clamp(16px, 2.6vw, 22px); line-height: 1.55; }
.difficulty-box { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 28px 0 16px; }
.difficulty {
  text-align: left;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 18px;
  background: rgba(255,255,255,.07);
  color: #f6fff7;
  padding: 16px;
  cursor: pointer;
}
.difficulty b { display: block; margin-bottom: 6px; font-size: 20px; }
.difficulty span { color: #c6d8ca; font-size: 14px; }
.difficulty.selected { border-color: #a8f5bc; background: rgba(104, 211, 145, .18); box-shadow: 0 0 0 3px rgba(168,245,188,.12); }
.howto { display: grid; gap: 6px; color: #d7eadc; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 16px; margin: 18px 0; }
.howto strong { color: #fff; }
.primary-btn, .ghost-btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  font-weight: 1000;
  cursor: pointer;
}
.primary-btn { background: linear-gradient(135deg, #a8f5bc, #ffe082); color: #07110c; box-shadow: 0 10px 24px rgba(0,0,0,.22); }
.ghost-btn { background: rgba(255,255,255,.1); color: #f6fff7; border: 1px solid rgba(255,255,255,.16); }
.play-screen { display: grid; grid-template-rows: auto 1fr auto; gap: 10px; padding: clamp(10px, 1.7vw, 16px); }
.hud { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.hud > div, .control-bar > div {
  min-width: 94px;
  padding: 9px 12px;
  border-radius: 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
}
.label, .control-bar span, .result-grid span { display: block; color: #b6cabc; font-size: 12px; font-weight: 800; }
.hud strong, .control-bar strong { font-size: 20px; }
.hud .ghost-btn { margin-left: auto; padding: 10px 14px; }
.arena-wrap { position: relative; min-height: 0; display: grid; place-items: stretch; }
canvas {
  width: 100%;
  height: 100%;
  min-height: 300px;
  display: block;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.14);
  background: #153b24;
  touch-action: none;
}
.pitch-hint {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 10px 16px;
  border-radius: 999px;
  color: #08120c;
  background: #ffe082;
  font-weight: 1000;
  box-shadow: 0 10px 26px rgba(0,0,0,.25);
}
.feedback {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: min(360px, 80%);
  text-align: center;
  padding: 16px 20px;
  border-radius: 22px;
  background: rgba(2, 10, 6, .66);
  border: 1px solid rgba(255,255,255,.15);
  color: #fff;
  font-size: clamp(24px, 5vw, 48px);
  font-weight: 1000;
  letter-spacing: -0.04em;
  pointer-events: none;
}
.feedback.soft { font-size: clamp(18px, 3vw, 28px); color: #dceee0; }
.feedback.home-run { background: rgba(255, 224, 130, .9); color: #111407; }
.feedback.double { background: rgba(168, 245, 188, .82); color: #06130d; }
.feedback.single { background: rgba(128, 214, 255, .82); color: #06111a; }
.feedback.foul { background: rgba(255,255,255,.72); color: #16201a; }
.feedback.miss { background: rgba(255, 107, 107, .82); color: #210706; }
.control-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.result-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 20px 0; }
.result-grid div, .best-box, .pitch-stats {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
}
.result-grid strong { display: block; margin-top: 6px; font-size: clamp(24px, 5vw, 38px); }
.best-box { color: #dbeedf; line-height: 1.7; }
.pitch-stats h3 { margin: 0 0 10px; }
.pitch-stats-table { display: grid; gap: 8px; }
.pitch-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center; color: #e8f7eb; }
.pitch-row span:nth-child(2), .pitch-row span:nth-child(3) { color: #b8d1be; font-weight: 800; }
.result-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
@media (max-width: 720px) {
  html, body { overflow: auto; }
  .game-shell { height: auto; min-height: 100dvh; padding: 8px; }
  .screen { border-radius: 20px; }
  .menu-screen, .result-screen { padding: 18px; }
  .difficulty-box, .result-grid { grid-template-columns: 1fr; }
  .play-screen { min-height: calc(100dvh - 16px); grid-template-rows: auto minmax(380px, 1fr) auto; }
  .hud { gap: 8px; }
  .hud > div { min-width: calc(50% - 4px); padding: 8px 10px; }
  .hud .ghost-btn { width: 100%; margin-left: 0; }
  .control-bar { grid-template-columns: 1fr; }
  .feedback { top: 54%; }
}