:root {
  --bg: #1b2735;
  --panel: #24344a;
  --water: #2f6f9e;
  --water-dark: #24597f;
  --grid-line: #16232f;
  --fog: #3a536b;
  --text: #eef3f8;
  --accent: #e8b23a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Verdana, sans-serif;
  background: linear-gradient(180deg, var(--bg), #0e1620);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

header { text-align: center; margin-bottom: 8px; }
header h1 { margin: 0 0 4px; font-size: 2.1rem; }
.subtitle { margin: 0; opacity: 0.75; }

.message {
  text-align: center;
  min-height: 1.4em;
  margin: 14px auto 20px;
  padding: 10px 16px;
  background: var(--panel);
  border-radius: 8px;
  max-width: 640px;
  font-weight: 600;
}

.screen.hidden { display: none; }

h2, h3 { text-align: center; }

.placement-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
  margin-bottom: 18px;
}

button {
  background: var(--accent);
  color: #2a1c00;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.15s ease;
}
button:hover:not(:disabled) { transform: translateY(-1px); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.fleet-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.fleet-picker button {
  background: var(--panel);
  color: var(--text);
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 6px;
}
.fleet-picker button.selected { border-color: var(--accent); }
.fleet-picker button.placed { opacity: 0.35; cursor: default; }

.boards {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}

.board-wrap { margin-bottom: 20px; }

.board {
  display: grid;
  grid-template-columns: repeat(10, 34px);
  grid-template-rows: repeat(10, 34px);
  gap: 2px;
  background: var(--grid-line);
  padding: 4px;
  border-radius: 8px;
  width: max-content;
  margin: 0 auto;
}

.cell {
  width: 34px;
  height: 34px;
  background: var(--water);
  position: relative;
  border-radius: 3px;
  cursor: default;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.cell.own { background: var(--water-dark); }

#enemy-board .cell {
  cursor: crosshair;
  background: var(--fog);
}
#enemy-board .cell:hover:not(.hit):not(.miss) {
  background: #4a6a87;
}

.cell.preview-ok { outline: 2px solid #2ecc71; }
.cell.preview-bad { outline: 2px solid #e74c3c; }

.cell.miss::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.6);
}

.cell.hit {
  background: #7a2323 !important;
}
.cell.hit::after {
  content: "💥";
  font-size: 18px;
}

/* --- Dwarf ship sprite, built purely from CSS shapes --- */
.dwarf {
  position: relative;
  width: 24px;
  height: 26px;
}
.dwarf .hat {
  position: absolute;
  top: -2px;
  left: 2px;
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 12px solid var(--hat, #c0392b);
  filter: drop-shadow(0 1px 0 rgba(0,0,0,0.4));
}
.dwarf .hat::after {
  content: "";
  position: absolute;
  top: 11px;
  left: -6px;
  width: 12px;
  height: 4px;
  background: var(--hat, #c0392b);
  border-radius: 2px;
}
.dwarf .head {
  position: absolute;
  top: 9px;
  left: 4px;
  width: 16px;
  height: 14px;
  background: #f0c090;
  border-radius: 50% 50% 45% 45%;
}
.dwarf .beard {
  position: absolute;
  top: 15px;
  left: 3px;
  width: 18px;
  height: 12px;
  background: #d9d9d9;
  border-radius: 0 0 9px 9px;
}
.dwarf .eyes {
  position: absolute;
  top: 13px;
  left: 7px;
  width: 10px;
  height: 2px;
  background: transparent;
  box-shadow: 0 0 0 1px #2a1c00, 8px 0 0 -1px #2a1c00;
}

.cell.hit .dwarf { filter: grayscale(1) brightness(0.6); transform: rotate(90deg); }
.cell.hit .dwarf .eyes { box-shadow: none; }
.cell.hit .dwarf::before {
  content: "✕";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  font-size: 14px;
  transform: rotate(-90deg);
}

.fleet-status {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 10px;
  max-width: 340px;
}
.fleet-status .badge {
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 12px;
  background: var(--panel);
}
.fleet-status .badge.sunk {
  text-decoration: line-through;
  opacity: 0.5;
  background: #5a1a1a;
}

#new-game-btn { display: block; margin: 24px auto 0; }

@media (max-width: 560px) {
  .board {
    grid-template-columns: repeat(10, 28px);
    grid-template-rows: repeat(10, 28px);
  }
  .cell { width: 28px; height: 28px; }
}