*{box-sizing:border-box}html,body{height:100%;margin:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:#0B2832;color:#EDF1F3;overflow:hidden}
#game{display:block;width:100vw;height:100vh;touch-action:none;outline:none}
#hud{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;gap:.5rem;padding:env(safe-area-inset-top) max(.75rem,env(safe-area-inset-right)) .5rem max(.75rem,env(safe-area-inset-left));z-index:5;background:linear-gradient(180deg,rgba(11,40,50,.78),rgba(11,40,50,0));backdrop-filter:saturate(1.2) blur(2px)}
#hud .left span{margin-right:1rem;font-weight:600}
#hud .right{display:flex;gap:.5rem}
button{appearance:none;border:0;border-radius:.6rem;padding:.5rem .8rem;background:#1E5B5B;color:#EDF1F3;font-weight:600}
button.primary{background:#2C6A8F}
button:active{transform:translateY(1px)}
#overlay{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem;padding-bottom:max(2rem,env(safe-area-inset-bottom));background:linear-gradient(180deg,rgba(11,40,50,.82),rgba(11,40,50,.9));z-index:10}
#overlay h1{margin-top:0}
#overlay[hidden]{display:none}
.overlay-buttons{display:flex;gap:.6rem;margin-top:.5rem;flex-wrap:wrap;justify-content:center}

/* — Приветствие игрока на старте */
.hello{margin:.2rem 0 .1rem;font-weight:700;color:#9fd0e0}
.hello:empty{display:none}

/* — Переключатель языка (только standalone-альфа). Активная локаль помечена не только цветом
   (aria-pressed → подчёркивание + рамка), цель ≥24×24px, виден focus (наследует button:focus-visible). */
.lang-switch{display:flex;gap:.4rem;margin-bottom:.6rem}
.lang-switch[hidden]{display:none}
.lang-btn{min-width:2.6rem;min-height:2.2rem;padding:.35rem .6rem;border-radius:.5rem;background:rgba(237,241,243,.08);color:#EDF1F3;font-size:.8rem;font-weight:700;letter-spacing:.03em}
.lang-btn[aria-pressed="true"]{background:#2C6A8F;text-decoration:underline;text-underline-offset:3px;box-shadow:inset 0 0 0 2px rgba(237,241,243,.55)}

/* — Заметка про альфа-тест + отображаемый контакт оператора (только standalone) */
.alpha-notice{margin:.4rem 0 .2rem;font-size:.82rem;line-height:1.4;opacity:.82;max-width:34rem}
.alpha-notice[hidden]{display:none}
.feedback-invite{margin:.85rem 0 0;font-size:.8rem;line-height:1.4;opacity:.82;max-width:34rem}
.feedback-invite[hidden]{display:none}
.feedback-invite a{color:#9fd0e0;text-decoration:underline;text-underline-offset:2px}
.feedback-invite a:focus-visible{outline:3px solid rgba(255,255,255,.8);outline-offset:2px;border-radius:.2rem}

/* — Лидерборд */
.board{width:min(360px,86vw);margin-top:1rem;text-align:left}
.board[hidden]{display:none}
.lb{background:rgba(237,241,243,.05);border:1px solid rgba(237,241,243,.14);border-radius:.8rem;padding:.6rem .7rem}
.lb-head{display:flex;justify-content:space-between;align-items:baseline;gap:.5rem}
.lb-title{font-weight:700}
.lb-note{font-size:.72rem;opacity:.6}
.lb-reset{margin:.15rem 0 .1rem;font-size:.78rem;opacity:.75;font-variant-numeric:tabular-nums}
.lb-reset:empty{display:none}
.lb-you{margin:.4rem 0 .2rem;font-size:.85rem;color:#9fd0e0}
.lb-tabs{display:flex;gap:.4rem;margin:.45rem 0 .3rem}
.lb-tab{padding:.25rem .65rem;border-radius:.5rem;background:rgba(237,241,243,.06);color:#EDF1F3;font-size:.8rem;font-weight:600}
.lb-tab.on{background:#2C6A8F}
.lb-list{list-style:none;margin:.1rem 0 0;padding:0;max-height:32vh;overflow:auto}
.lb-row{display:grid;grid-template-columns:2.4rem 1fr auto;gap:.5rem;padding:.24rem .3rem;border-radius:.45rem;font-size:.9rem}
.lb-row.me{background:rgba(46,106,143,.4);font-weight:700}
.lb-rk{opacity:.65;font-variant-numeric:tabular-nums}
.lb-al{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-sc{font-variant-numeric:tabular-nums;font-weight:600}
.lb-empty,.lb-off,.lb-load{padding:.5rem .3rem;opacity:.7;font-size:.85rem}
.lb-more{margin-top:.5rem;width:100%;background:rgba(237,241,243,.08);color:#EDF1F3;font-size:.82rem;padding:.4rem}
.lb-more:disabled{opacity:.5}
@media (max-width:480px){#hud .left span{margin-right:.6rem}button{padding:.5rem .7rem;font-size:0.95rem}}
@media (prefers-contrast:more){button{outline:2px solid #fff}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

/* лёгкая тень у HUD, чтобы читабельнее на светлых лучах */
#hud{ box-shadow: 0 2px 12px rgba(0,0,0,.15); }

/* нежные подсказки на кнопках при фокусе */
button:focus-visible{ outline:3px solid rgba(255,255,255,.8); outline-offset:2px; }

/* если у пользователя reduce motion — отключаем blur и анимации UI */
@media (prefers-reduced-motion: reduce){
  #hud{ backdrop-filter:none }
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
}

/* --- disable long-press selection/callout globally --- */
html, body {
  -webkit-user-select: none;
  -webkit-touch-callout: none;      /* iOS: hide copy/lookup sheet */
  user-select: none;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent; /* remove grey flash */
}

/* allow selection where you actually want it (inputs, if any) */
input, textarea {
  -webkit-user-select: text;
  user-select: text;
}

/* game surfaces / HUD */
#game, #overlay, #hud, #ui, .hud, .overlay {
  touch-action: none;               /* prevent OS gestures */
  -ms-touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}