:root {
  --bg: #0b1722;
  --bg-soft: #122334;
  --sea: #16364f;
  --sea-line: #1f4f72;
  --ink: #e7f0f6;
  --accent: #f4c95d;
  --accent-2: #5cc8d7;
  --ship: #d7dee3;
  --hit: #ff5b5b;
  --miss: #6c7a85;
  --sunk: #ff8a3d;
  --ok: #5fd97a;
  --bad: #ff5b5b;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 600px at 20% -10%, #1a3656 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 100%, #0d2238 0%, transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  min-height: 100vh;
}

header { text-align: center; padding: 28px 16px 8px; }

h1 {
  font-family: 'Unica One', sans-serif;
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: .25em;
  margin: 0;
  color: var(--accent);
  text-shadow: 0 2px 0 #000a, 0 0 24px #f4c95d33;
}

#status {
  margin: 8px 0 0;
  color: var(--accent-2);
  font-size: 14px;
  letter-spacing: .08em;
  min-height: 1.2em;
}

/* ===== Меню ===== */
.menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 320px));
  gap: 20px;
  justify-content: center;
  padding: 32px 16px;
}
.menu-card {
  background: linear-gradient(180deg, #143049 0%, #0f263a 100%);
  border: 1px solid #234c6e;
  border-radius: 4px;
  padding: 22px 20px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.menu-card h3 {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: .25em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent);
}
.menu-card button { width: 100%; }
.menu-join { display: flex; gap: 8px; min-width: 0; }
.menu-join input {
  flex: 1 1 0;
  min-width: 0;
  background: #0b1c2c;
  border: 1px solid var(--sea-line);
  color: var(--ink);
  font-family: 'JetBrains Mono', monospace;
  font-size: 18px;
  letter-spacing: .25em;
  text-align: center;
  text-transform: uppercase;
  padding: 10px 4px;
  border-radius: 2px;
  outline: none;
  width: 0;
}
.menu-join input:focus { border-color: var(--accent); }
.menu-join button { flex: 0 0 auto; width: auto; padding: 10px 14px; }

/* ===== Код приватной комнаты ===== */
.room-info { text-align: center; padding: 32px 16px; }
.hint-small {
  margin: 0 0 10px;
  color: #9fb1c1;
  font-size: 12px;
  letter-spacing: .25em;
  text-transform: uppercase;
}
.code {
  font-family: 'Unica One', sans-serif;
  font-size: clamp(40px, 8vw, 64px);
  letter-spacing: .3em;
  padding: 16px 24px;
  display: inline-block;
  border: 2px dashed var(--accent);
  border-radius: 4px;
  background: #0b1c2c;
  color: var(--accent);
  margin-bottom: 18px;
}
.hint { margin: 14px 0 0; color: var(--accent-2); font-size: 13px; }

/* ===== Игровые поля ===== */
main {
  display: grid;
  grid-template-columns: repeat(2, auto);
  justify-content: center;
  gap: 28px;
  padding: 24px 16px;
}

.board-wrap h2 {
  margin: 0 0 10px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .25em;
  color: #a8bccb;
  text-transform: uppercase;
}

/* ===== Док кораблей ===== */
.ship-dock {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
  padding: 10px;
  background: #0e2638;
  border: 1px solid var(--sea-line);
  border-radius: 4px;
  margin-bottom: 10px;
  min-height: 40px;
}
.dock-ship {
  display: flex;
  gap: 2px;
  cursor: grab;
  padding: 4px;
  border-radius: 2px;
  border: 1px solid transparent;
  user-select: none;
  transition: background .15s, border-color .15s;
}
.dock-ship.vertical { flex-direction: column; }
.dock-ship:hover { background: #1a3a55; }
.dock-ship.selected { background: #2a4868; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.dock-ship:active { cursor: grabbing; }
.dock-cell {
  width: 16px;
  height: 16px;
  background: linear-gradient(180deg, #e5ebef, #b0bcc4);
  border: 1px solid #5a6d79;
  border-radius: 2px;
}
.dock-empty {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: .08em;
}
.placement-hint {
  text-align: center;
  font-size: 11px;
  color: #9fb1c1;
  margin: 8px 0 0;
  letter-spacing: .04em;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}
.placement-hint kbd {
  display: inline-block;
  padding: 1px 6px;
  font-size: 11px;
  font-family: inherit;
  border: 1px solid var(--sea-line);
  background: #0b1c2c;
  border-radius: 2px;
  color: var(--accent);
}

/* ===== Сетка ===== */
.grid {
  --cell: clamp(22px, 4.2vw, 36px);
  display: grid;
  grid-template-columns: repeat(10, var(--cell));
  grid-template-rows: repeat(10, var(--cell));
  background: var(--sea);
  padding: 6px;
  border-radius: 6px;
  box-shadow: var(--shadow), inset 0 0 0 1px #234c6e;
}

.cell {
  border: 1px solid var(--sea-line);
  background: linear-gradient(180deg, #163f5e 0%, #112f47 100%);
  position: relative;
  cursor: default;
  transition: background .12s ease, transform .08s ease;
}

#enemy-board .cell:not(.miss):not(.hit):not(.sunk) { cursor: crosshair; }
#enemy-board.active .cell:not(.miss):not(.hit):not(.sunk):hover { background: #1f567f; }
#enemy-board.active .cell:not(.miss):not(.hit):not(.sunk):active { transform: scale(.96); }
#enemy-board:not(.active) .cell { cursor: not-allowed; }

#my-board .cell[data-ship-id] { cursor: pointer; }

.cell.ship {
  background: linear-gradient(180deg, #e5ebef 0%, #b0bcc4 100%);
  border-color: #5a6d79;
}

.cell.preview-ok  { background: rgba(95, 217, 122, .45) !important; border-color: var(--ok); }
.cell.preview-bad { background: rgba(255, 91, 91, .45) !important; border-color: var(--bad); }

.cell.hit::after,
.cell.sunk::after {
  content: '';
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff6, transparent 60%), var(--hit);
  box-shadow: 0 0 10px #ff5b5b88;
}
.cell.sunk::after {
  background: radial-gradient(circle at 30% 30%, #fff6, transparent 60%), var(--sunk);
  box-shadow: 0 0 12px #ff8a3daa;
}
.cell.miss::after {
  content: '';
  position: absolute;
  inset: 40%;
  border-radius: 50%;
  background: var(--miss);
  opacity: .9;
}

/* ===== Кнопки управления ===== */
.controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 8px 16px 24px;
  flex-wrap: wrap;
}

button {
  font-family: inherit;
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  border-radius: 2px;
  cursor: pointer;
  transition: all .15s ease;
}
button:hover:not(:disabled) { background: var(--accent); color: #1a1208; }
button:disabled { opacity: .35; cursor: not-allowed; }

footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  padding: 4px 16px 28px;
  font-size: 12px;
  color: #9fb1c1;
  flex-wrap: wrap;
}
.legend { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.dot.ship { background: linear-gradient(180deg, #e5ebef, #b0bcc4); }
.dot.hit  { background: var(--hit); border-radius: 50%; }
.dot.miss { background: var(--miss); border-radius: 50%; width: 6px; height: 6px; }
.dot.sunk { background: var(--sunk); border-radius: 50%; }

@media (max-width: 760px) {
  main { grid-template-columns: 1fr; gap: 18px; }
  .menu { grid-template-columns: 1fr; }
}