:root {
  --bg: #0d1117;
  --panel: rgba(10, 15, 20, 0.75);
  --panel-border: rgba(120, 180, 255, 0.35);
  --text: #dfeaff;
  --muted: #a7b7d4;
  --green: #7af0a5;
  --yellow: #f9db76;
  --red: #ff7b7b;
  --cyan: #7ad7ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at top, #111820, #05080d 65%);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, sans-serif;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

#game-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #050b10;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #050a10;
}

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hidden { display: none; }

.top-bar {
  position: absolute;
  top: 18px;
  left: 18px;
  right: 220px;
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 18px rgba(0, 0, 0, 0.28);
}

.health-panel,
.stamina-panel,
.noise-panel,
.stats-panel {
  padding: 8px 10px;
}

.label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.bar {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}

.fill {
  height: 100%;
  width: 100%;
  border-radius: inherit;
  transition: width 0.12s ease;
}

.health-fill {
  background: linear-gradient(90deg, #ff5f6d, #ff9a6b);
}

.stamina-fill {
  background: linear-gradient(90deg, #6ee7b7, #3db4ff);
}

.noise-fill {
  background: linear-gradient(90deg, #facc15, #ff6a6a);
}

.value,
.stat {
  display: inline-block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text);
}

.right-panel {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 190px;
  padding: 12px 12px 8px;
}

.inventory-block,
.controls-block {
  margin-bottom: 12px;
}

.inventory-block h3,
.controls-block h3 {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

#inventoryList,
.controls-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text);
}

#inventoryList li {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 5px 8px;
}

.mini-map {
  position: absolute;
  bottom: 18px;
  left: 18px;
  width: 190px;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

#minimap {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  background: rgba(10, 20, 24, 0.7);
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 10, 15, 0.72);
  backdrop-filter: blur(3px);
}

.overlay.hidden { display: none; }

.menu-card {
  width: min(500px, 90vw);
  padding: 26px 24px;
}

.menu-card h1 {
  margin: 0 0 8px;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cyan);
}

.subtitle {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.6;
}

.menu-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.menu-controls label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
}

.menu-controls input {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 15px;
}

.button-row {
  display: flex;
  gap: 12px;
}

button {
  border: 1px solid rgba(122, 215, 255, 0.45);
  background: linear-gradient(135deg, rgba(146, 206, 255, 0.22), rgba(88, 209, 188, 0.24));
  color: var(--text);
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
}

button.secondary {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.12);
}

.status-text {
  margin-top: 16px;
  color: var(--cyan);
  min-height: 18px;
  font-size: 12px;
  letter-spacing: 0.04em;
}