:root {
  --bg: #071123;
  --panel: rgba(8, 14, 26, 0.82);
  --line: rgba(144, 178, 255, 0.35);
  --txt: #edf4ff;
  --muted: #b7c6e6;
  --player: #56f3af;
  --enemy: #ff8a7a;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at 20% 10%, #173153 0%, #071123 45%, #040912 100%);
  color: var(--txt);
  font-family: "Segoe UI", system-ui, sans-serif;
}

.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 83% 24%, rgba(86, 243, 175, 0.1), transparent 42%),
    radial-gradient(circle at 12% 82%, rgba(94, 143, 255, 0.17), transparent 46%);
}

.hud {
  position: fixed;
  top: 14px;
  left: 14px;
  width: min(360px, calc(100vw - 28px));
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  z-index: 5;
}

.hud h1 { margin: 0 0 8px; font-size: 20px; }

.turn-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-weight: 800;
}

.dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.4), 0 0 14px currentColor;
}

.dot.player { background: var(--player); color: var(--player); }
.dot.enemy { background: var(--enemy); color: var(--enemy); }

.fleet-info {
  margin: 6px 0 10px;
  font-size: 13px;
  color: #d8f3ff;
  font-weight: 700;
}

.row { display: flex; align-items: center; gap: 8px; margin: 8px 0; }

button, select, input {
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #10203d;
  color: #fff;
  padding: 8px 10px;
  font-weight: 600;
}

button { cursor: pointer; }
button:hover { border-color: #80a6ff; }

.hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.ai-note {
  margin: 4px 0 0;
  color: #d3def4;
  font-size: 12px;
}

.game-wrap {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
}

.battle-console {
  width: min(760px, 96vw);
  border-radius: 20px;
  border: 1px solid rgba(189, 203, 224, 0.58);
  background:
    linear-gradient(165deg, rgba(178, 187, 198, 0.8), rgba(93, 101, 112, 0.84)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0 2px, transparent 2px 8px);
  box-shadow:
    0 18px 50px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -14px 22px rgba(0, 0, 0, 0.2);
  padding: 14px;
}

.console-top {
  border-radius: 14px;
  border: 1px solid rgba(190, 204, 224, 0.38);
  background: linear-gradient(180deg, rgba(25, 51, 82, 0.96), rgba(13, 29, 50, 0.97));
  padding: 10px;
}

.console-bottom {
  margin-top: 10px;
  border-radius: 12px;
  border: 1px solid rgba(180, 195, 216, 0.33);
  background: linear-gradient(180deg, rgba(68, 83, 100, 0.56), rgba(48, 60, 75, 0.62));
  padding: 8px;
}

.console-top h3,
.console-bottom h3 {
  margin: 0 0 8px;
  font-size: 14px;
  text-align: center;
  color: #eaf2ff;
  letter-spacing: 0.03em;
}

.grid-board {
  display: grid;
  grid-template-columns: repeat(10, minmax(20px, 1fr));
  gap: 3px;
  padding: 10px;
  border-radius: 10px;
  background:
    linear-gradient(180deg, #14508f, #0d3b6d),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 8px);
  border: 1px solid rgba(176, 214, 255, 0.32);
  box-shadow: inset 0 0 0 1px rgba(13, 44, 78, 0.7), inset 0 10px 18px rgba(255, 255, 255, 0.04);
}

.main-board {
  width: min(560px, 90vw);
  margin: 0 auto;
}

.sub-board {
  width: min(360px, 72vw);
  margin: 0 auto;
}

.cell {
  aspect-ratio: 1;
  border-radius: 4px;
  border: 1px solid rgba(160, 196, 255, 0.35);
  background:
    linear-gradient(180deg, #2a669f, #1d4f80 48%, #183f66);
  color: #f5fbff;
  font-weight: 900;
  font-size: 13px;
  padding: 0;
  display: grid;
  place-items: center;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -2px 4px rgba(0, 0, 0, 0.25),
    0 1px 0 rgba(4, 16, 32, 0.6);
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.5);
}

.enemy .cell:not(.hit):not(.miss):not(:disabled):hover {
  border-color: #bcfffb;
  background: linear-gradient(180deg, #2d7dbd, #1f5f96);
  box-shadow:
    inset 0 0 0 1px rgba(193, 255, 255, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 0 0 1px rgba(18, 48, 78, 0.7);
}

.cell.ship {
  background: linear-gradient(180deg, #72b9b4, #3b8f8a 55%, #2e6d68);
  border-color: rgba(190, 238, 233, 0.55);
}

.cell.hit {
  background: linear-gradient(180deg, #d16666, #ab3f3f 60%, #7f2b2b);
  border-color: #ffc1c1;
  box-shadow:
    inset 0 0 0 1px rgba(255, 211, 211, 0.26),
    inset 0 -2px 4px rgba(62, 18, 18, 0.4);
}

.cell.miss {
  background: linear-gradient(180deg, #5c8ab7, #3d6691 58%, #2f4f72);
  border-color: #c2dfff;
  box-shadow:
    inset 0 0 0 1px rgba(207, 229, 255, 0.24),
    inset 0 -2px 3px rgba(22, 41, 66, 0.35);
}

.legend {
  margin-top: 10px;
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: #cfe1ff;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.k {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.k.ship { background: #1b8d72; }
.k.hit { background: #a83a3a; }
.k.miss { background: #3e5f87; }

.k {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 1px 2px rgba(0, 0, 0, 0.32);
}

.setup-overlay,
.vittoria-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  padding: 14px;
}

.vittoria-overlay { z-index: 30; }
.hidden { display: none; }

.setup-card {
  width: min(1320px, 98vw);
  min-height: min(620px, 88vh);
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  border: 1px solid rgba(144, 178, 255, 0.45);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(11, 20, 37, 0.96);
}

.setup-left {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 20%, rgba(80, 132, 245, 0.25), rgba(6, 12, 24, 0.95));
  padding: 12px;
}

.setup-left img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.setup-right {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.setup-right h2 { margin: 0; font-size: 24px; }
.setup-grid { display: grid; gap: 12px; }
.setup-grid.one-col { grid-template-columns: 1fr; }

.player-box {
  border: 1px solid rgba(144, 178, 255, 0.35);
  border-radius: 12px;
  padding: 10px;
  background: rgba(5, 12, 24, 0.48);
}

.player-box h3 { margin: 0 0 8px; font-size: 14px; }
.player-box label { display: block; font-size: 12px; margin: 8px 0 0; color: var(--muted); }
.player-box input,
.player-box select { width: 100%; margin-top: 5px; }

.setup-actions {
  margin-top: auto;
  display: flex;
  justify-content: flex-end;
}

.setup-actions button {
  border: 1px solid #56f3af;
  background: #173325;
  color: #d8ffe9;
  font-weight: 800;
  padding: 10px 14px;
}

.vittoria-card {
  width: min(460px, 96vw);
  border: 1px solid rgba(144, 178, 255, 0.45);
  border-radius: 14px;
  background: rgba(11, 20, 37, 0.98);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.5);
  padding: 18px;
}

.vittoria-card h2 { margin: 0 0 10px; }
.vittoria-card p { margin: 0 0 14px; color: #eaf2ff; font-weight: 700; }

@media (max-width: 980px) {
  .setup-card { grid-template-columns: 1fr; }
  .setup-left { max-height: 240px; }
  .battle-console { width: min(560px, 96vw); }
}