:root {
  --bg: #05060f;
  --panel-bg: rgba(13, 16, 38, 0.85);
  --text: #e8f4ff;
  --text-dim: #7f8bc2;
  --accent-p1: #22e8ff;
  --accent-p2: #ff2fd6;
  --accent-gold: #ffd23f;
  --border: #2d3568;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  overflow: hidden;
}

.screen {
  display: none;
  width: 100%;
  height: 100vh;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 20%, rgba(90, 60, 200, 0.18), transparent 60%),
    repeating-linear-gradient(
      0deg,
      rgba(90, 160, 255, 0.035) 0px,
      rgba(90, 160, 255, 0.035) 1px,
      transparent 1px,
      transparent 34px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(90, 160, 255, 0.035) 0px,
      rgba(90, 160, 255, 0.035) 1px,
      transparent 1px,
      transparent 34px
    ),
    var(--bg);
}

.screen.active {
  display: flex;
}

.panel {
  background: var(--panel-bg);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 40px;
  max-width: 640px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 40px rgba(34, 232, 255, 0.08), inset 0 0 60px rgba(90, 60, 200, 0.06);
}

h1 {
  margin: 0 0 4px;
  font-size: 2.6rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 800;
  background: linear-gradient(90deg, var(--accent-p1), var(--accent-p2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px rgba(34, 232, 255, 0.35);
}

.tagline {
  color: var(--text-dim);
  margin: 0 0 24px;
  letter-spacing: 0.5px;
}

.tagline.small {
  font-size: 0.8rem;
  margin: 18px 0 6px;
  line-height: 1.5;
}

.alias-row {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 16px;
}

.alias-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  flex: 1;
}

.alias-row input {
  background: rgba(5, 6, 20, 0.8);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 1rem;
  font-family: 'Consolas', 'Courier New', monospace;
}

.alias-row input:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 12px rgba(255, 210, 63, 0.35);
}

.score-line {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 1.05rem;
  font-weight: 600;
  margin: 8px 0;
  color: var(--accent-gold);
  text-shadow: 0 0 10px rgba(255, 210, 63, 0.3);
}

.controls-legend {
  display: flex;
  gap: 30px;
  justify-content: center;
  margin: 24px 0;
  text-align: left;
}

.controls-legend h3 {
  margin: 0 0 6px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-gold);
}

.controls-legend p {
  margin: 2px 0;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-family: 'Consolas', 'Courier New', monospace;
}

button {
  font-family: inherit;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: 8px;
  border: none;
  padding: 12px 28px;
  cursor: pointer;
  margin: 6px;
  transition: filter 0.15s, box-shadow 0.15s;
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent-gold), #ff9f3f);
  color: #241a05;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(255, 210, 63, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 26px rgba(255, 210, 63, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  color: var(--accent-p1);
  border-color: var(--accent-p1);
  box-shadow: 0 0 14px rgba(34, 232, 255, 0.25);
}

#game-screen {
  position: relative;
  flex-direction: column;
  background: #000;
}

#game-canvas {
  display: block;
  max-width: 100vw;
  max-height: 100vh;
  background: #000;
}

.announcement-banner {
  position: absolute;
  top: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(5, 6, 20, 0.85);
  border: 1px solid #ffb347;
  color: #ffb347;
  font-family: 'Consolas', 'Courier New', monospace;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 10px 22px;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(255, 179, 71, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
}

.announcement-banner.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.hud {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  font-family: 'Consolas', 'Courier New', monospace;
}

.hud-cluster {
  background: rgba(5, 6, 20, 0.75);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  min-width: 140px;
  backdrop-filter: blur(4px);
}

.hud-left {
  border-left: 3px solid var(--accent-p1);
  box-shadow: -8px 0 20px -12px var(--accent-p1);
}

.hud-right {
  border-right: 3px solid var(--accent-p2);
  text-align: right;
  box-shadow: 8px 0 20px -12px var(--accent-p2);
}

.hud-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.5px;
}

.hud-buildings {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.hud-tier {
  font-size: 0.75rem;
  color: #ffd23f;
  margin-top: 2px;
}

.hud-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: auto;
}

.hud-weapon-banner {
  background: rgba(5, 6, 20, 0.75);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 18px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent-gold);
  text-shadow: 0 0 10px rgba(255, 210, 63, 0.4);
}

.hud-wind {
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: #9fd8ff;
  background: rgba(5, 6, 20, 0.6);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
}

.btn-skip {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 14px;
  margin: 0;
  background: rgba(5, 6, 20, 0.75);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.btn-skip:hover {
  color: #ff4d6a;
  border-color: #ff4d6a;
  box-shadow: 0 0 12px rgba(255, 77, 106, 0.3);
}

.btn-lava {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 10px;
  margin: 6px 0 0;
  width: 100%;
  background: rgba(5, 6, 20, 0.75);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: not-allowed;
  pointer-events: auto;
}

.btn-lava.ready {
  color: #ff9a3f;
  border-color: #ff6a1f;
  box-shadow: 0 0 12px rgba(255, 106, 31, 0.35);
  cursor: pointer;
}

.btn-lava.ready:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 18px rgba(255, 106, 31, 0.55);
}

.btn-carpet {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 12px;
  margin: 0;
  background: rgba(5, 6, 20, 0.75);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: not-allowed;
}

.btn-carpet.ready {
  color: #ff5a5a;
  border-color: #ff2f2f;
  box-shadow: 0 0 12px rgba(255, 47, 47, 0.35);
  cursor: pointer;
}

.btn-carpet.ready:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 18px rgba(255, 47, 47, 0.55);
}

.gameover-stats {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.6;
  font-family: 'Consolas', 'Courier New', monospace;
}

#gameover-headline {
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-gold);
  text-shadow: 0 0 20px rgba(255, 210, 63, 0.4);
}