/* NV Sonar — a naval sonar console: deep navy glass, phosphor numbers, amber marker buoys. Fonts: IBM Plex (SIL OFL). */
@font-face { font-family: 'Plex Mono'; src: url('./fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex Condensed'; src: url('./fonts/ibm-plex-sans-condensed-latin-500-normal.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Plex Condensed'; src: url('./fonts/ibm-plex-sans-condensed-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-display: swap; }
:root {
  --deep: #06121f; --panel: #0b1f33; --tile: #17405e; --tile-2: #11324c; --open: #081a2b; --grid: rgba(94, 234, 212, 0.08);
  --phos: #5eead4; --text: #d5e7f2; --soft: #7d9ab0; --amber: #fbbf24; --red: #f43f5e;
  --mono: 'Plex Mono', ui-monospace, Consolas, monospace; --sans: 'Plex Condensed', 'Arial Narrow', system-ui, sans-serif;
  --size: 30px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; color: var(--text); font: 500 16px/1.45 var(--sans); background: radial-gradient(90% 60% at 50% 0%, #0f2c46, var(--deep) 70%); }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
a { color: var(--phos); }
.console { width: min(1000px, calc(100% - 24px)); margin: clamp(12px, 3vw, 28px) auto; display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
.top { text-align: center; }
.brand { margin: 0; font-size: 11px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--soft); }
.brand span { color: var(--text); font-weight: 600; }
h1 { margin: 0; font: 400 clamp(34px, 8vw, 52px)/1 var(--mono); letter-spacing: 0.3em; text-indent: 0.3em; color: var(--phos); text-shadow: 0 0 18px rgba(94, 234, 212, 0.45); text-transform: uppercase; }

.bar { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px 16px; }
.seg { display: inline-flex; flex-wrap: wrap; justify-content: center; padding: 3px; gap: 2px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); border: 1px solid rgba(94, 234, 212, 0.15); }
.seg button { min-height: 34px; padding: 0 12px; border: 0; border-radius: 8px; background: transparent; color: var(--soft); cursor: pointer; font-weight: 600; font-size: 14px; }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed='true'] { background: rgba(94, 234, 212, 0.14); color: var(--phos); box-shadow: inset 0 0 0 1px rgba(94, 234, 212, 0.4); }
.tog { display: inline-flex; gap: 8px; align-items: center; font-size: 14px; color: var(--soft); cursor: pointer; }
.tog input { accent-color: var(--phos); width: 16px; height: 16px; }
.custom { display: flex; flex-wrap: wrap; justify-content: center; align-items: end; gap: 10px; }
.custom label { display: grid; gap: 2px; font-size: 12px; color: var(--soft); text-transform: uppercase; letter-spacing: 0.08em; }
.custom input { width: 84px; min-height: 36px; padding: 0 8px; border-radius: 8px; border: 1px solid rgba(94, 234, 212, 0.25); background: rgba(0, 0, 0, 0.35); font-family: var(--mono); }

.hud { display: flex; justify-content: center; align-items: center; gap: clamp(14px, 5vw, 40px); }
.gauge { display: grid; justify-items: center; min-width: 88px; padding: 4px 12px 6px; border-radius: 10px; background: #020a12; border: 1px solid rgba(94, 234, 212, 0.18); box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.7); }
.gauge span { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--soft); }
.gauge b { font: 400 26px/1.1 var(--mono); color: var(--phos); text-shadow: 0 0 10px rgba(94, 234, 212, 0.6); letter-spacing: 0.08em; }
.scope { position: relative; width: 58px; height: 58px; border-radius: 50%; border: 2px solid rgba(94, 234, 212, 0.45); cursor: pointer; overflow: hidden;
  background: repeating-radial-gradient(circle, transparent 0 8px, rgba(94, 234, 212, 0.16) 8px 9px), radial-gradient(#0d2b3f, #020a12); box-shadow: 0 0 20px rgba(94, 234, 212, 0.25); }
.scope__sweep { position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(from 0deg, rgba(94, 234, 212, 0.55), transparent 70deg); animation: sweep 2.4s linear infinite; }
.scope__mark { position: absolute; inset: 0; display: grid; place-items: center; font: 400 22px var(--mono); font-style: normal; }
.scope.won { border-color: var(--phos); }
.scope.won .scope__sweep, .scope.lost .scope__sweep { animation: none; opacity: 0; }
.scope.lost { border-color: var(--red); box-shadow: 0 0 22px rgba(244, 63, 94, 0.5); }
@keyframes sweep { to { transform: rotate(360deg); } }

.field { overflow: auto; padding: 10px; border-radius: 16px; background: linear-gradient(#0c2338, #071726); border: 1px solid rgba(94, 234, 212, 0.18); box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.6), 0 20px 40px -20px rgba(0, 0, 0, 0.8); }
.board { position: relative; overflow: hidden; display: grid; gap: 2px; width: max-content; margin: 0 auto; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; touch-action: manipulation; }
.cell { width: var(--size); height: var(--size); padding: 0; border: 0; border-radius: 4px; cursor: pointer; display: grid; place-items: center;
  background: linear-gradient(160deg, #1e5274, var(--tile) 45%, var(--tile-2)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), inset 0 -2px 0 rgba(0, 0, 0, 0.35);
  font: 400 calc(var(--size) * 0.6)/1 var(--mono); }
.cell:hover:not(.open) { background: linear-gradient(160deg, #24628a, #1b4b6c); }
.cell.open { background: var(--open); box-shadow: inset 0 0 0 1px var(--grid); cursor: default; }
.cell.open.n { cursor: pointer; }
.n1 { color: #5eead4; } .n2 { color: #86efac; } .n3 { color: #fbbf24; } .n4 { color: #fb923c; }
.n5 { color: #f87171; } .n6 { color: #f472b6; } .n7 { color: #c4b5fd; } .n8 { color: #e2e8f0; }
.cell.n { text-shadow: 0 0 8px currentColor; }
.cell svg { width: 70%; height: 70%; pointer-events: none; }
.cell.mine { background: #1a0d16; }
.cell.boom { background: radial-gradient(circle, #7f1d2d, #2a0b14); box-shadow: 0 0 14px rgba(244, 63, 94, 0.8); }
.cell.wrong { background: #26131b; }
.cell.hinted { animation: hinted 1s ease-in-out 3; box-shadow: 0 0 0 2px var(--amber), 0 0 14px rgba(251, 191, 36, 0.7); }
@keyframes hinted { 50% { box-shadow: 0 0 0 2px transparent; } }
.ping { position: absolute; width: calc(var(--size) * 6); height: calc(var(--size) * 6); margin: calc(var(--size) * -3) 0 0 calc(var(--size) * -3); border-radius: 50%;
  border: 2px solid rgba(94, 234, 212, 0.7); pointer-events: none; animation: ping 0.7s ease-out forwards; }
@keyframes ping { from { transform: scale(0.1); opacity: 1; } to { transform: scale(1); opacity: 0; } }

.tools { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.btn { min-height: 40px; padding: 0 16px; border: 1px solid rgba(94, 234, 212, 0.35); border-radius: 10px; background: rgba(94, 234, 212, 0.06); cursor: pointer; font-weight: 600; }
.btn:hover { background: rgba(94, 234, 212, 0.14); }
.btn[aria-pressed='true'] { background: var(--amber); border-color: var(--amber); color: #1a1205; }
.btn--glow { background: var(--phos); color: #032421; border-color: var(--phos); box-shadow: 0 0 18px rgba(94, 234, 212, 0.45); }
.btn--glow:hover { background: #99f6e4; }
.status { margin: 0; min-height: 1.45em; text-align: center; color: var(--soft); }
.result { display: grid; gap: 12px; justify-items: center; padding: 16px; border-radius: 14px; background: rgba(0, 0, 0, 0.3); border: 1px solid rgba(94, 234, 212, 0.25); }
.result.lost { border-color: rgba(244, 63, 94, 0.45); }
.result__title { margin: 0; font: 400 clamp(18px, 4vw, 24px) var(--mono); color: var(--phos); text-align: center; }
.result.lost .result__title { color: #fda4af; }
.facts { margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; }
.facts div { text-align: center; }
.facts dt { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--soft); }
.facts dd { margin: 0; font: 400 18px var(--mono); }

.records { padding: 16px; border-radius: 14px; background: rgba(0, 0, 0, 0.25); border: 1px solid rgba(94, 234, 212, 0.12); overflow-x: auto; }
.records__head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 8px; }
h2 { margin: 0; font: 400 18px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--phos); }
.link { border: 0; background: none; padding: 0; color: var(--soft); text-decoration: underline; cursor: pointer; font-size: 13px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 600; color: var(--soft); font-size: 12px; padding: 4px 8px 4px 0; border-bottom: 1px solid rgba(94, 234, 212, 0.15); white-space: nowrap; }
td { padding: 6px 8px 6px 0; border-bottom: 1px solid rgba(94, 234, 212, 0.06); font-family: var(--mono); font-size: 13px; white-space: nowrap; }
td:first-child { font-family: var(--sans); }
.empty { margin: 6px 0 0; color: var(--soft); font-size: 14px; }
.keys { margin: 0; text-align: center; font-size: 13px; color: var(--soft); }
kbd { font: 400 11px var(--mono); border: 1px solid rgba(94, 234, 212, 0.3); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; background: #020a12; color: var(--text); }
.foot { text-align: center; font-size: 12px; color: var(--soft); }
@media (prefers-reduced-motion: reduce) { .scope__sweep, .ping, .cell.hinted { animation: none; } }