:root {
  --bg: #0b0c10;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --border: #2a2d33;
  --accent: #818cf8;
  --accent-contrast: #14161c;
  --card: #14161c;
  --card-2: #1a1d24;
  --hover: #1f232b;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --radius-sm: 8px;
}

:root[data-theme="light"] {
  --bg: #f4f5f7;
  --text: #15171a;
  --muted: #5f6368;
  --border: #dcdfe4;
  --accent: #4f46e5;
  --accent-contrast: #ffffff;
  --card: #ffffff;
  --card-2: #f0f1f4;
  --hover: #eceef2;
  --shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

/* ===== Header ===== */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 20px;
  /* leave room for the fixed "Zurück zur Startseite" button (arcade-common.css) */
  padding-left: clamp(64px, 16vw, 190px);
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand h1 {
  font-family: "Orbitron", "Noto Sans", system-ui, sans-serif;
  font-size: 20px;
  letter-spacing: 0.06em;
  margin: 0;
  font-weight: 700;
}
.brand-text { min-width: 0; }
.tagline {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--muted);
}
.logo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  flex: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */

.primary {
  padding: 9px 14px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
}
.primary:hover { background: var(--hover); border-color: var(--muted); }
.primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.primary.accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}
.primary.accent:hover { filter: brightness(1.1); background: var(--accent); }

.primary.ghost { background: transparent; }
.primary.ghost:hover { background: var(--hover); }

.card-action { margin-top: 10px; }

.toggle { display: none !important; }

button, select, input { font-family: inherit; }

/* ===== Setup bar (Spiel, Modelle, Geschwindigkeit) ===== */

.setup-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px 16px;
  align-items: end;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  min-width: 0;
}
.control > span {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 11px;
}
.control select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card-2);
  color: var(--text);
  font-size: 13px;
}
.control select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Geschwindigkeits-Regler */
.speed-buttons {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--card-2);
  width: fit-content;
}
.speed-btn {
  padding: 9px 14px;
  border: none;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.speed-btn:last-child { border-right: none; }
.speed-btn:hover { background: var(--hover); color: var(--text); }
.speed-btn.active {
  background: var(--accent);
  color: var(--accent-contrast);
}
.speed-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

/* ===== Main layout ===== */

.app-main {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 320px;
  gap: 16px;
  padding: 16px 20px;
  align-items: start;
  max-width: 1500px;
  margin: 0 auto;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.panel .card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.card h2 {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status { min-height: 24px; font-weight: 600; }

.thinking {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
.thinking.hidden { display: none; }
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Spielfläche ===== */

.game-card { display: flex; flex-direction: column; gap: 12px; }

.game-container {
  display: grid;
  place-items: center;
  min-height: 480px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--card-2);
  position: relative;
  overflow: auto;
  padding: 12px;
}

.players-header {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.player-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  background: var(--card-2);
  color: var(--muted);
  transition: border-color 120ms ease, color 120ms ease, box-shadow 120ms ease;
}
.player-badge.active {
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 0 1px var(--accent);
}
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot.red { background: #e53935; }
.dot.blue { background: #1e88e5; }

/* Recording-Overlay über der Spielfläche */
.record-overlay {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; align-items: center; z-index: 5;
}
.rec-dot { width: 14px; height: 14px; border-radius: 50%; }
.rec-dot.red { background: #e53935; }
.rec-dot.blue { background: #1e88e5; }
.rec-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 12px;
}
.rec-label { color: var(--text); }

.record-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
#downloadBtn { text-decoration: none; display: inline-block; }
#recordStatus {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

/* ===== Logs & Profil ===== */

.log {
  font-family: "Space Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  min-height: 80px;
  max-height: 360px;
  overflow: auto;
  white-space: pre-wrap;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}

.profile {
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  max-height: 420px;
  overflow: auto;
}

.muted { color: var(--muted); }

.grid { display: grid; }

/* ===== Spiel-spezifische Styles ===== */

.tictactoe-board {
  width: min(360px, 80vw);
  height: min(360px, 80vw);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.tictactoe-cell {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 42px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  transition: transform 120ms ease, background 120ms ease;
}
.tictactoe-cell:disabled { opacity: 1; color: var(--text); }

.snake-canvas,
.pong-canvas {
  width: min(420px, 84vw);
  height: min(420px, 84vw);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.snake-canvas { image-rendering: pixelated; }

.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(56px, 92px));
  gap: 10px;
}
.memory-card {
  aspect-ratio: 1/1;
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  display: grid;
  place-items: center;
  font-weight: 600;
  cursor: pointer;
  transition: transform 120ms ease;
}
.memory-card.revealed { background: var(--hover); color: var(--text); }
.memory-card:hover { transform: scale(1.02); }

.connect4-board {
  width: min(420px, 84vw);
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}
.connect4-cell {
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}
.connect4-cell:hover { transform: scale(1.04); }
.connect4-disc.red { background: #e53935; border-color: #e53935; }
.connect4-disc.blue { background: #1e88e5; border-color: #1e88e5; }

.rps-container {
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  padding: 8px;
}
.rps-buttons { display: flex; gap: 10px; }
.rps-buttons button {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}
.rps-buttons button:hover { transform: scale(1.03); background: var(--hover); }

.nim-container { display: grid; gap: 12px; justify-items: center; text-align: center; }
.nim-sticks { display: flex; gap: 4px; flex-wrap: wrap; max-width: 380px; justify-content: center; }
.nim-stick { width: 12px; height: 36px; background: var(--accent); border-radius: 2px; }
.nim-controls { display: flex; gap: 8px; }
.nim-controls button {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}
.nim-controls button:hover { transform: scale(1.03); background: var(--hover); }
.nim-controls button:disabled { opacity: 0.5; cursor: not-allowed; }

.hanoi-board { display: flex; gap: 24px; align-items: flex-end; }
.hanoi-peg {
  width: 120px; height: 220px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; flex-direction: column-reverse; align-items: center;
  background: var(--card);
}
.hanoi-disc { height: 18px; border-radius: 6px; background: #1e88e5; border: 1px solid #1e88e5; margin: 3px 0; }
.hanoi-controls { display: flex; gap: 8px; margin-top: 8px; }
.hanoi-control {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}
.hanoi-control:hover { transform: scale(1.03); background: var(--hover); }

.app-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

/* ===== Settings Modal ===== */

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1000;
  padding: 16px;
}
.modal.hidden { display: none; }
.modal-content {
  width: 420px;
  max-width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  color: var(--text);
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  margin-bottom: 12px;
}
.modal-header h3 { margin: 0; font-size: 16px; }
.modal-body { display: grid; gap: 12px; }
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ===== Disclaimer Overlay ===== */

.disclaimer-overlay {
  position: fixed; inset: 0; display: grid; place-items: center;
  background: rgba(0, 0, 0, 0.7); z-index: 2000;
  padding: 16px;
}
.disclaimer-content {
  width: 560px; max-width: 100%;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow);
}
.disclaimer-title { margin: 0 0 8px; font-size: 18px; color: var(--text); }
.disclaimer-text { font-size: 13px; line-height: 1.6; }
.warn-red { color: #e53935; }

/* ===== Responsive ===== */

@media (max-width: 1180px) {
  .app-main { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .panel.center { grid-column: 1 / -1; order: -1; }
}

@media (max-width: 720px) {
  .app-header {
    padding-left: 20px;
    padding-top: clamp(56px, 12vw, 64px); /* room for the fixed back button */
  }
  .app-main {
    grid-template-columns: 1fr;
    padding: 12px;
    gap: 12px;
  }
  .setup-bar { padding: 12px; grid-template-columns: 1fr; }
  .game-container { min-height: 340px; }
  .header-actions { width: 100%; }
  .header-actions .primary { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2s; }
  .primary, .speed-btn, .player-badge,
  .tictactoe-cell, .memory-card, .connect4-cell,
  .rps-buttons button, .nim-controls button, .hanoi-control { transition: none; }
}