:root {
  --bg-color: #050505;
  --primary: #00ff88;
  --secondary: #00ccff;
  --danger: #ff3333;
  --ui-bg: rgba(0, 20, 0, 0.82);
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg-color);
  color: var(--primary);
  font-family: "Courier New", Courier, monospace;
  user-select: none;
  touch-action: none;
}

.game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background:
    linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.13) 50%),
    var(--bg-color);
  background-size: 100% 4px;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
}

#ui-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hidden { display: none !important; }

#webcam {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.debug-controls {
  position: absolute;
  top: max(10px, env(safe-area-inset-top));
  left: max(10px, env(safe-area-inset-left));
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px;
  border: 1px solid #333;
  background: #000;
  font-size: 0.7rem;
  pointer-events: auto;
}

#camera-pip {
  position: absolute;
  top: max(50px, calc(env(safe-area-inset-top) + 40px));
  left: max(10px, env(safe-area-inset-left));
  z-index: 190;
  width: 160px;
  height: 120px;
  overflow: hidden;
  border: 2px solid var(--primary);
  background: #000;
  box-shadow: 0 0 15px var(--primary);
  pointer-events: none;
}

#debugCanvas {
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  filter: grayscale(100%) contrast(150%) brightness(0.9);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 15px;
}

.toggle-switch input {
  width: 0;
  height: 0;
  opacity: 0;
}

.slider {
  position: absolute;
  inset: 0;
  cursor: pointer;
  border: 1px solid #555;
  background: #333;
}

.slider::before {
  position: absolute;
  bottom: 2px;
  left: 2px;
  width: 9px;
  height: 9px;
  background: #888;
  content: "";
  transition: 0.2s;
}

input:checked + .slider { background: var(--primary); }
input:checked + .slider::before {
  transform: translateX(14px);
  background: #000;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.95);
  text-align: center;
  pointer-events: auto;
}

h1.glitch-text {
  position: relative;
  margin: 0 0 20px;
  color: #fff;
  font-size: clamp(2.4rem, 8vw, 5rem);
  letter-spacing: 0.12em;
  animation: glitch 3s infinite;
}

h1.glitch-text::before,
h1.glitch-text::after {
  position: absolute;
  inset: 0;
  content: "GESTUROIDS";
}

h1.glitch-text::before {
  z-index: -1;
  color: #ff00ff;
  animation: glitch-a 0.4s infinite linear alternate-reverse;
}

h1.glitch-text::after {
  z-index: -2;
  color: #00ffff;
  animation: glitch-b 0.4s infinite linear alternate-reverse;
}

@keyframes glitch {
  0%, 6%, 100% { transform: skew(0); opacity: 1; }
  2% { transform: skew(10deg); opacity: 0.8; }
  4% { transform: skew(-10deg); }
}

@keyframes glitch-a {
  from { clip-path: inset(20% 0 80%); transform: translateX(-2px); }
  to { clip-path: inset(30% 0); transform: translateX(2px); }
}

@keyframes glitch-b {
  from { clip-path: inset(10% 0 60%); transform: translateX(2px); }
  to { clip-path: inset(5% 0 80%); transform: translateX(-2px); }
}

button {
  margin-top: 20px;
  padding: 15px 30px;
  border: 2px solid var(--primary);
  background: #000;
  color: var(--primary);
  font: 1rem "Courier New", monospace;
  text-transform: uppercase;
  cursor: pointer;
  transition: 0.1s;
}

button:disabled {
  border-color: #333;
  color: #333;
  cursor: wait;
}

button:hover:not(:disabled),
button:focus-visible:not(:disabled) {
  background: var(--primary);
  color: #000;
  box-shadow: 0 0 20px var(--primary);
}

#final-score-box {
  margin-top: 22px;
  color: var(--danger);
  font-weight: bold;
  letter-spacing: 0.08em;
}

.hud-top {
  position: absolute;
  top: max(8px, env(safe-area-inset-top));
  left: 50%;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  width: min(620px, calc(100% - 220px));
  transform: translateX(-50%);
  font-size: 1rem;
  text-shadow: 0 0 5px var(--primary);
}

.hud-group {
  display: flex;
  min-width: 90px;
  flex-direction: column;
  align-items: center;
}

.label {
  margin-bottom: 2px;
  color: #888;
  font-size: 0.7rem;
}

#missileDisp.cooldown { color: var(--danger); }

.status-container {
  display: flex;
  width: min(90%, 650px);
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}

.hand-status {
  width: 130px;
  flex: 0 0 auto;
  padding: 10px;
  border: 2px solid #333;
  background: rgba(0, 0, 0, 0.5);
  text-align: center;
  transition: 0.2s;
}

.hand-status.ok {
  border-color: var(--primary);
  background: rgba(0, 255, 136, 0.15);
  box-shadow: 0 0 20px var(--primary);
}

.status-icon { margin-bottom: 5px; font-size: 2rem; }
.status-text { font-size: 1rem; font-weight: bold; }
.status-sub { margin-top: 5px; color: #888; font-size: 0.7rem; }
.hand-status.ok .status-sub { color: var(--primary); }

.center-status {
  width: 100%;
  max-width: 300px;
  text-align: center;
}

.progress-bar {
  width: 100%;
  height: 15px;
  overflow: hidden;
  margin-bottom: 10px;
  border: 2px solid #555;
  background: #111;
}

#calib-progress {
  width: 0;
  height: 100%;
  background: var(--primary);
  transition: width 0.1s;
}

.msg {
  color: #aaa;
  font-size: 0.8rem;
  letter-spacing: 2px;
}

.blink { animation: blink 0.7s step-end infinite; }
@keyframes blink { 50% { opacity: 0.25; } }

.controls-layer {
  position: absolute;
  right: max(10px, env(safe-area-inset-right));
  bottom: max(10px, env(safe-area-inset-bottom));
  left: max(10px, env(safe-area-inset-left));
  display: flex;
  justify-content: space-between;
}

.panel {
  display: flex;
  width: 130px;
  flex-direction: column;
  gap: 5px;
}

.panel.right { align-items: flex-end; }

.panel-title {
  width: 100%;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--primary);
  font-size: 0.8rem;
  font-weight: bold;
}

.panel.right .panel-title { text-align: right; }

.card {
  width: 100%;
  padding: 6px;
  border: 1px solid #333;
  background: rgba(0, 20, 0, 0.68);
  font-size: 0.72rem;
  opacity: 0.38;
  transition: 0.1s;
}

.card.active {
  border-color: var(--primary);
  background: rgba(0, 255, 136, 0.22);
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
  opacity: 1;
}

@media (max-width: 700px), (max-height: 520px) {
  #camera-pip { width: 120px; height: 90px; }
  .debug-controls { font-size: 0.6rem; }
  .hud-top {
    top: max(8px, env(safe-area-inset-top));
    width: calc(100% - 150px);
    margin-left: 65px;
    font-size: 0.82rem;
  }
  .hud-group { min-width: 62px; }
  .panel { width: 112px; }
  .card { padding: 4px; font-size: 0.62rem; }
  .status-container { flex-wrap: wrap; gap: 10px; }
  .center-status { order: 3; max-width: 280px; }
  .hand-status { width: 120px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}