:root {
  --board-size: min(72vmin, 640px);
  --cell-gap: 2px;
  --accent: #3fb4ff;
  --accent-2: #1d82d2;
  --metal: #9ec4da;
  --danger: #ff4d6d;
  --ok: #4cd964;
  --ink: #0a1e2b;
  --bg: #03121b;
  --tile: #0d2a3a;
  --tile2: #12364a;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: #e6f6ff;
  overflow-x: hidden;
}

/* HUD */
.hud {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(180deg, rgba(3,18,27,.9), rgba(3,18,27,.5));
  backdrop-filter: blur(6px);
}
.title { margin: 0; font-weight: 800; letter-spacing: .5px; }
.title .metal {
  color: var(--metal);
  text-shadow: 0 1px 0 #fff3, 0 2px 8px #9fd4ff55;
}
.title .deluxe { color: var(--accent); }
.hud-actions { display: flex; gap: 8px; }
.icon-btn {
  background: #083149;
  border: 1px solid #0e4b6f;
  color: #cfefff;
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: .2s;
}
.icon-btn:hover { transform: translateY(-1px); }

/* Screens */
.screen { display: none; padding: 16px; }
.screen.active { display: block; }

/* animiertes Wasser */
.water-bg {
  position: fixed; inset: 0; z-index: -1;
  background: radial-gradient(1000px 600px at 50% 0%, rgba(255,255,255,.06), transparent 70%),
              url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="400" height="400"><defs><filter id="f"><feTurbulence baseFrequency=".012" numOctaves="2" seed="7"/><feDisplacementMap in="SourceGraphic" scale="12"/></filter></defs><rect width="100%" height="100%" fill="%23051624"/><g filter="url(%23f)"><rect width="100%" height="100%" fill="%23092a3b"/></g></svg>');
  background-size: cover, 400px 400px;
  animation: drift 20s linear infinite;
  opacity: .45;
}
@keyframes drift {
  from { background-position: center top, 0 0; }
  to { background-position: center -30px, 400px 400px; }
}

/* Menü */
.menu-panel {
  width: min(100%, 900px);
  margin: 6vh auto;
  background: linear-gradient(180deg, #082638aa, #071f2eaa);
  border: 1px solid #0f3b56;
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 20px;
}
.menu-title {
  text-align: center;
  font-size: clamp(28px, 5vw, 46px);
  margin: 10px 0 20px;
  text-shadow: 0 2px 14px #4dc3ff55;
}
.menu-section { margin: 12px 0 18px; }

/* NEU: saubere Felder für Spielernamen */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.field span {
  font-weight: 600;
  font-size: 15px;
  color: #bfe9ff;
  text-shadow: 0 1px 2px #0006;
}
.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #0e4b6f;
  background: linear-gradient(180deg, #09293f, #071e2e);
  color: #eaf8ff;
  font-size: 15px;
  box-shadow: inset 0 1px 2px rgba(255,255,255,0.05), 0 0 6px rgba(0,0,0,0.4);
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus {
  outline: none;
  border-color: #49aaff;
  box-shadow: 0 0 0 2px rgba(73,170,255,0.25);
}

.radio-row { display: flex; gap: 16px; margin: 6px 0 12px; }

/* Hauptmenü Auswahl */
.menu-choice { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 720px) { .menu-choice { grid-template-columns: 1fr; } }

.setup-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.radio-col { display: flex; flex-direction: column; gap: 8px; margin: 6px 0 12px; }

.cta {
  width: 100%; padding: 14px 18px; border: 0; border-radius: 16px;
  cursor: pointer; font-weight: 700;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #06202e; text-shadow: 0 1px 0 #ffffffaa;
  box-shadow: var(--shadow);
  transition: .15s;
}
.cta:hover { transform: translateY(-2px); }
.cta.alt { background: linear-gradient(180deg, #4ade80, #22c55e); }
.ghost {
  padding: 10px 14px; border-radius: 12px;
  border: 1px solid #135173; background: #083149;
  color: #d8f3ff; cursor: pointer;
}

/* UI-Fix: Zufallsplatzierung hängt am Start-Button -> minimal Abstand */
.placement-actions #btnRandom { margin-bottom: 10px; }

/* Multiplayer Lobby Overlay */
.mp-lobby {
  position: sticky;
  top: 76px;
  z-index: 9;
  grid-column: 1 / -1;
  margin-bottom: 8px;
}
.mp-lobby-inner {
  background: linear-gradient(180deg, #082638cc, #071f2ecc);
  border: 1px solid #0f3b56;
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 14px;
}
.mp-lobby-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.mp-lobby-code {
  font-weight: 800;
  color: #bfe9ff;
}
.mp-lobby-code span { color: var(--accent); }
.mp-lobby-role { opacity: .9; font-weight: 700; }
.mp-lobby-players {
  display: grid;
  gap: 6px;
  margin: 10px 0;
}
.mp-player {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  background: rgba(8,36,54,0.55);
}
.mp-player .name { font-weight: 700; }
.mp-player .status { font-weight: 800; }
.mp-lobby-actions {
  display: flex;
  gap: 10px;
}
.mp-lobby-actions .ghost { flex: 1; }
.mp-lobby-actions .cta { flex: 2; }

/* Bühne */
.stage {
  display: grid;
  grid-template-columns: 1fr 12px 1fr;
  gap: 16px; align-items: start;
  margin: 10px auto; max-width: 1200px;
}
.divider { height: 100%; background: linear-gradient(180deg, #0a3b57, transparent); border-radius: 8px; }
.side h3 { margin: 4px 0 8px; }
.status { margin-top: 10px; min-height: 1.8em; font-weight: 700; color: #bfe9ff; text-shadow: 0 2px 10px #1f8ed444; }
.hint { opacity: .9; margin-top: 8px; font-size: 14px; }

/* Boards */
.board {
  width: var(--board-size); aspect-ratio: 1;
  background: linear-gradient(180deg, #0b2b3e, #0a2434);
  border-radius: 14px; border: 1px solid #0e4b6f;
  position: relative; box-shadow: var(--shadow);
  display: grid; grid-template-columns: repeat(10,1fr);
  grid-auto-rows: 1fr; gap: var(--cell-gap); padding: var(--cell-gap);
}
.cell {
  background: linear-gradient(180deg, var(--tile), var(--tile2));
  border-radius: 6px; position: relative;
  outline: none; transition: background .1s, box-shadow .1s;
}
.cell:hover { filter: brightness(1.06); }

/* Treffer / Fehlschüsse */
.cell[data-state="hit"] {
  background: radial-gradient(circle at 50% 45%, #ff6666 0%, #5a0000 80%);
  box-shadow: inset 0 0 4px #fff4, inset 0 0 10px #ff2020;
}
.cell[data-state="miss"] {
  background: radial-gradient(circle at 50% 45%, #3ecbff 25%, #102f46 70%);
  box-shadow: inset 0 0 0 2px #6fe0ff, 0 0 10px #78d6ff80;
}
.cell[data-state="sunk"] {
  background: radial-gradient(circle at 50% 45%, #555 10%, #111 80%);
  box-shadow: inset 0 0 5px #000a, 0 0 10px #9004;
}

/* Schiffe */
.cell.placed {
  box-shadow: inset 0 0 0 2px #bfe9ff, 0 0 10px #78c8ff66;
  background: linear-gradient(160deg, #7fa6bb, #426678);
  border: 1px solid #2d4050;
}
.cell.ghost {
  outline: 2px dashed #6cf9ff;
  box-shadow: 0 0 10px 2px #6cf9ff55 inset;
  background: radial-gradient(circle, #3fa9ff44 20%, transparent 70%);
}
.cell.invalid {
  outline: 2px solid #ff4d6d;
  background: radial-gradient(circle, #ff4d6d33 30%, transparent 70%);
}
.cell.selected { outline: 2px dashed #ffffffaa; }

@media (max-width: 980px) {
  .stage { grid-template-columns: 1fr; }
  .divider { display: none; }
  .board { --board-size: min(96vw, 560px); }
}

/* ========== WERFT (klarer Look, ohne komischen Rahmen) ========== */
.dock {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  background: rgba(0,0,0,0.25);
  border-radius: 10px;
  padding: 10px;
}

.dock-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(8,36,54,0.8);
  border-radius: 10px;
  cursor: pointer;
  transition: 0.2s;
  color: #cfe9ff;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.dock-item:hover:not(.used):not(.selected) {
  transform: translateY(-1px);
  border-color: #49aaff;
  box-shadow: 0 8px 22px rgba(0,0,0,.3);
}
.dock-item.selected {
  border-color: #49aaff;
  background: rgba(30,144,255,0.20);
}
.dock-item.used {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(1);
}

.dock-item .ship { display: flex; gap: 3px; transition: transform .2s; }
.dock-item .ship .seg {
  width: 18px; height: 18px;
  background: linear-gradient(160deg,#a7c6d9,#5c7e93);
  border: 1px solid #2d4050;
  border-radius: 4px;
}
.dock-item .ship-name {
  font-weight: 600;
  opacity: .95;
}

/* ========== TREFFER/FEHLSCHUSS noch klarer ========== */
.cell[data-state="hit"] {
  background: radial-gradient(circle at 50% 45%, #ff6666 0%, #5a0000 85%);
  box-shadow: inset 0 0 6px #ff8a8a, inset 0 0 14px #ff2c2c;
}
.cell[data-state="ownHit"] { /* eigener Treffer durch KI */
  background: radial-gradient(circle at 50% 45%, #ff3737 0%, #6b0000 85%);
  box-shadow: inset 0 0 6px #ff6b6b, inset 0 0 14px #ff2a2a;
}
.cell[data-state="miss"] {
  background: radial-gradient(circle at 50% 45%, #3ecbff 30%, #0d2f48 80%);
  box-shadow: inset 0 0 0 2px #6fe0ff55, 0 0 10px #78d6ff55;
  opacity: .9;
}

/* dezente Rauchfahne auf versenkten Feldern – optional */
.cell[data-state="hit"].sunk::after,
.cell[data-state="ownHit"].sunk::after {
  content: "";
  position: absolute; left: 50%; top: 50%;
  width: 18px; height: 18px; transform: translate(-50%,-60%);
  background: radial-gradient(rgba(220,230,240,.8), transparent 60%);
  border-radius: 50%;
  filter: blur(0.5px);
  opacity: .9;
}

/* ========== END-OVERLAY nur bei Ende sichtbar ========== */
#endOverlay { display: none; }
#endOverlay.show {
  display: flex;
  position: fixed;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(5,18,27,.92);
  z-index: 999;
}
#endOverlay .end-card {
  background: #082638;
  border: 1px solid #0f3b56;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 36px rgba(0,0,0,.45);
}

/* --- Übergabe-Overlay Style --- */
#handover {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(5,18,27,0.95);
  color: #e6f6ff;
  z-index: 999;
  text-align: center;
  transition: opacity 0.3s;
}
#handover.show { display: flex; }
.handover-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  font-size: 1.4rem;
}
.handover-card .ship-silhouette {
  font-size: 4rem;
  animation: floaty 2s ease-in-out infinite;
}
@keyframes floaty {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}


/* Startseite: 3 Buttons untereinander */
.menu-choice--stack { grid-template-columns: 1fr; }

button:disabled, .cta:disabled, .ghost:disabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none !important;
}


/* Spectator CTA (nicht blau/grün) */
.cta.cta-spectate{
  background: #f97316;
}
.cta.cta-spectate:hover{
  filter: brightness(0.95);
}


.impressum-subtle{
  margin-top: 56px;
  padding: 10px 12px;
  text-align: center;
  opacity: 0.28;
  font-size: 10px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.impressum-subtle details{ display: inline-block; text-align: left; }
.impressum-subtle summary{
  cursor: pointer;
  list-style: none;
  user-select: none;
  opacity: 0.75;
}
.impressum-subtle summary::-webkit-details-marker{ display:none; }
.impressum-subtle .impressum-inner{
  max-width: 900px;
  margin: 6px auto 0;
  line-height: 1.35;
}
.impressum-subtle p{ margin: 6px 0; }
.impressum-subtle .muted{ opacity: 0.7; }

/* --- Impressum-Navigation (Link als Button) --- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.icon-btn:visited { color: inherit; }


/* --- Legal Bar (unten, volle Breite, gut lesbar) --- */
.legal-bar {
  width: 100%;
  border-top: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.45);
  color: rgba(255,255,255,0.92);
  font-size: 13px;
  line-height: 1.6;
}

.legal-bar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.legal-bar__link {
  color: rgba(255,255,255,0.95);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.legal-bar__link:hover {
  opacity: 0.85;
}


/* --- Layout helper: Footer am Seitenende ohne fixed --- */
html, body { min-height: 100%; }
body { display: flex; flex-direction: column; }
#app { flex: 1 0 auto; }