@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
  --bg-top: #0a0e1a;
  --bg-bottom: #000000;
  --neon-cyan: #4dfbff;
  --neon-magenta: #ff3ec9;
  --neon-amber: #ffb347;
  --text-dim: #7d8aa8;
  --panel-bg: rgba(10, 14, 26, 0.85);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 30%, var(--bg-top) 0%, var(--bg-bottom) 75%);
  color: #eaf6ff;
  font-family: 'Segoe UI', Roboto, sans-serif;
  touch-action: none;
}

#gameCanvas {
  display: block;
  width: 100vw;
  height: 100vh;
  touch-action: none;
}

/* subtle CRT scanline overlay, purely decorative, zero JS cost */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.035) 0px,
    rgba(255, 255, 255, 0.035) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  z-index: 5;
}

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 18vw rgba(0, 0, 0, 0.85);
  z-index: 4;
}

#overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid rgba(77, 251, 255, 0.35);
  border-radius: 14px;
  padding: 36px 42px;
  max-width: 420px;
  width: min(90vw, 420px);
  text-align: center;
  box-shadow: 0 0 40px rgba(77, 251, 255, 0.12), 0 0 80px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  animation: panelIn 0.35s ease-out;
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.title {
  font-family: 'Press Start 2P', monospace;
  font-size: 32px;
  letter-spacing: 4px;
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan), 0 0 24px rgba(77, 251, 255, 0.6);
  margin: 0 0 6px;
}

.subtitle {
  color: var(--text-dim);
  font-size: 13px;
  margin: 0 0 26px;
  letter-spacing: 0.5px;
}

.btn {
  display: block;
  width: 100%;
  padding: 14px 18px;
  margin: 10px 0;
  border: 1px solid var(--neon-cyan);
  border-radius: 8px;
  background: transparent;
  color: var(--neon-cyan);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s, transform 0.1s;
}

.btn:hover {
  background: var(--neon-cyan);
  color: #05070d;
  box-shadow: 0 0 20px rgba(77, 251, 255, 0.55);
}

.btn:active { transform: scale(0.97); }

.btn.magenta {
  border-color: var(--neon-magenta);
  color: var(--neon-magenta);
}
.btn.magenta:hover {
  background: var(--neon-magenta);
  color: #05070d;
  box-shadow: 0 0 20px rgba(255, 62, 201, 0.55);
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-dim);
}
.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #eaf6ff;
  box-shadow: none;
}

.btn.amber {
  border-color: var(--neon-amber);
  color: var(--neon-amber);
}
.btn.amber:hover {
  background: var(--neon-amber);
  color: #05070d;
  box-shadow: 0 0 20px rgba(255, 179, 71, 0.55);
}

.menu-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 12px;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.menu-divider::before,
.menu-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
}

.code-input {
  width: 100%;
  padding: 14px;
  margin-bottom: 12px;
  font-size: 22px;
  letter-spacing: 6px;
  text-align: center;
  text-transform: uppercase;
  border-radius: 8px;
  border: 1px solid rgba(77, 251, 255, 0.4);
  background: rgba(255, 255, 255, 0.04);
  color: #eaf6ff;
  font-family: 'Press Start 2P', monospace;
}
.code-input:focus { outline: none; border-color: var(--neon-cyan); }

.room-code {
  font-family: 'Press Start 2P', monospace;
  font-size: 30px;
  letter-spacing: 8px;
  color: var(--neon-magenta);
  text-shadow: 0 0 10px rgba(255, 62, 201, 0.7);
  margin: 14px 0;
  user-select: all;
}

.status-line {
  font-size: 13px;
  color: var(--text-dim);
  min-height: 18px;
  margin-top: 10px;
}

.dots::after {
  content: '';
  animation: dots 1.2s steps(4, end) infinite;
}
@keyframes dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
  100% { content: ''; }
}

.hidden { display: none !important; }

.link-row {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.link-row .btn { margin: 0; }

.error-text {
  color: #ff6b6b;
  font-size: 12px;
  min-height: 16px;
  margin-top: -6px;
  margin-bottom: 10px;
}

.big-result {
  font-family: 'Press Start 2P', monospace;
  font-size: 22px;
  margin-bottom: 8px;
}
.big-result.win { color: var(--neon-cyan); text-shadow: 0 0 10px var(--neon-cyan); }
.big-result.lose { color: var(--neon-magenta); text-shadow: 0 0 10px var(--neon-magenta); }

@media (max-width: 480px) {
  .title { font-size: 24px; }
  .panel { padding: 26px 22px; }
}