:root {
  color-scheme: dark;
  --bg: #071217;
  --panel: #10232b;
  --panel2: #17343e;
  --text: #f5fbfd;
  --muted: #b9cbd1;
  --accent: #7ee8ff;
  --focus: #fff38a;
  --danger: #ffb2a7;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; background: var(--bg); color: var(--text); }
body { overscroll-behavior: none; }
body.settings-open { overflow: hidden; }
button { font: inherit; min-height: 3.25rem; border: 1px solid #416774; border-radius: .8rem; background: var(--panel2); color: var(--text); font-weight: 800; padding: .7rem .85rem; }
button.primary { background: var(--accent); color: #041418; border-color: transparent; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 4px solid var(--focus); outline-offset: 3px; }
button[aria-pressed="true"] { box-shadow: 0 0 0 3px var(--accent) inset; }
main { width: min(70rem, 100%); margin: 0 auto; padding: max(1rem, env(safe-area-inset-top)) 1rem calc(1rem + env(safe-area-inset-bottom)); }
h1 { font-size: clamp(2rem, 8vw, 3.7rem); margin: .1rem 0 .45rem; letter-spacing: -.045em; }
h2 { margin: 0 0 .5rem; }
h3 { margin: 0 0 .55rem; }
p { line-height: 1.48; }
.eyebrow { margin: 0; color: var(--accent); font-size: .8rem; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; }
.lead { max-width: 48rem; color: var(--muted); }
.shell { max-width: 52rem; margin: 0 auto; }
.lobby-actions { display: grid; gap: .7rem; margin: 1.1rem 0; }
.rooms, details, .help { margin: 1rem 0; padding: .9rem; border: 1px solid #31515d; border-radius: .9rem; background: var(--panel); }
.rooms ul { margin: .4rem 0; padding-left: 1.3rem; }
.small { min-height: 2.7rem; font-size: .9rem; }
.back-link { display: inline-block; padding: .7rem 0; color: var(--accent); font-weight: 800; }
.game-header { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.header-actions { display: flex; flex-wrap: wrap; gap: .45rem; }
.message { min-height: 3.2rem; margin: .65rem 0; padding: .65rem .8rem; border-left: .3rem solid var(--accent); background: rgba(126,232,255,.08); border-radius: .4rem; }
.status { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .4rem; }
.status div { min-width: 0; padding: .48rem; border: 1px solid #31515d; border-radius: .65rem; background: #0b1c22; text-align: center; }
.status span { display: block; color: var(--muted); font-size: .7rem; }
.status strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.play-surface { position: relative; min-height: min(61vh, 38rem); margin-top: .65rem; border: 1px solid #31515d; border-radius: 1rem; overflow: hidden; background: #071b22; touch-action: none; }
#map { display: none !important; }
.gesture-hint { position: absolute; top: .5rem; left: .7rem; margin: 0; padding: .35rem .55rem; background: rgba(7,18,23,.8); border-radius: .5rem; color: var(--muted); font-size: .78rem; pointer-events: none; }
.controls { position: absolute; inset: auto .65rem .65rem .65rem; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .45rem; padding: .55rem; border-radius: .85rem; background: rgba(7,18,23,.9); transition: opacity .18s ease; }
.controls .danger { border-color: #c86f62; background: #4a2421; }
.controls button::after { content: "  [" attr(data-key) "]"; opacity: .72; font-size: .78em; white-space: nowrap; }
#guideButton { font-size: 0; }
#guideButton::before { content: "Повернуть к сонару"; font-size: .92rem; }
#guideButton::after { font-size: .72rem; }
body.gesture-mode #game { touch-action: none; }
body.gesture-mode .controls { opacity: 0; visibility: hidden; pointer-events: none; }
body.gesture-mode .gesture-hint { color: var(--accent); }
.settings-overlay { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: max(1rem, env(safe-area-inset-top)) 1rem max(1rem, env(safe-area-inset-bottom)); overflow-y: auto; background: rgba(2, 9, 12, .92); }
.settings-card { width: min(40rem, 100%); padding: 1rem; border: 1px solid #416774; border-radius: 1rem; background: var(--panel); box-shadow: 0 1.2rem 4rem rgba(0, 0, 0, .45); }
.settings-intro { margin: .25rem 0 1rem; color: var(--muted); }
.settings-group { margin: .85rem 0; padding: .9rem; border: 1px solid #31515d; border-radius: .85rem; background: #0b1c22; }
.settings-grid { display: grid; gap: .55rem; }
.settings-note { margin: .55rem 0 0; color: var(--muted); font-size: .9rem; }
.settings-close { width: 100%; margin-top: .3rem; }
.skip { position: absolute; left: -9999px; top: 0; background: white; color: black; padding: .8rem; z-index: 50; }
.skip:focus { left: .5rem; top: .5rem; }
.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; }
[hidden] { display: none !important; }
@media (max-width: 44rem) {
  .status { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .status strong { overflow: visible; white-space: normal; line-height: 1.15; }
  .play-surface { min-height: 65vh; }
  .controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls button { min-height: 3.7rem; }
}
@media (max-width: 25rem) {
  .header-actions { flex-direction: column; }
  .controls button::after { display: block; }
}
@media (prefers-reduced-motion: reduce) { .controls { transition: none; } }