/* ROOT VARIABLES MATCHING ZENITH */
:root {
  --bg-color: #11111b;
  --text-main: #cdd6f4;
  --text-muted: #a6adc8;
  --accent: #cba6f7;
  --glass-bg: rgba(30, 30, 46, 0.6);
  --glass-border: #313244;
  
  --font-sans: 'Outfit', sans-serif;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'Space Grotesk', monospace;
}

/* RESET & LAYOUT */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* CUSTOM CURSOR */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  pointer-events: none; z-index: 9998;
  mix-blend-mode: difference;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, background-color 0.3s, transform 0.2s;
}

@media (pointer: coarse) {
  .cursor {
    display: none;
  }
}

/* NAVBAR */
.navbar {
  position: absolute;
  top: 2rem;
  left: 4rem;
  z-index: 100;
}

.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.back-link:hover {
  color: var(--text-main);
}

/* GAME CONTAINER */
.game-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 2rem;
}

.game-container {
  position: relative;
  width: 900px;
  max-width: 100%;
  aspect-ratio: 800 / 450; 
  border-radius: 0; /* Sharp Workstation Console */
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* HUD / SCOREBOARD */
.hud {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  display: flex;
  gap: 2rem;
  pointer-events: none;
  z-index: 10;
}

.score-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.score-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin-bottom: 0.2rem;
}

.score-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.05em;
}

/* GLASS CARD & OVERLAYS */
.glass-card {
  background: rgba(17, 17, 27, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 0;
}

.overlay {
  position: absolute;
  inset: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 3rem;
  z-index: 20;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.overlay.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
}

/* TYPOGRAPHY IN OVERLAYS */
.game-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.game-title span {
  font-weight: 300;
  color: var(--text-muted);
}

.subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 420px;
  margin-bottom: 2rem;
  line-height: 1.5;
}

.controls-guide {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.control-key {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.control-key span {
  color: var(--text-main);
  background: rgba(203, 166, 247, 0.08);
  border: 1px solid rgba(203, 166, 247, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* BUTTONS */
.btn {
  background: var(--text-main);
  color: var(--bg-color);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 2rem;
  border-radius: 0;
  border: none;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.25, 1, 0.5, 1), background-color 0.2s;
}

.btn:hover {
  transform: scale(1.05);
  background-color: var(--accent);
}

/* GAME OVER OVERLAY */
.gameover-title {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.stat-row {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
}

.stat-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}
/* ==========================================
   LEADERBOARD & USERNAME INPUT
   ========================================== */
.leaderboard-container {
  width: 800px;
  max-width: 100%;
  padding: 1.25rem 2rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.leaderboard-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  text-align: center;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 0.5rem;
}

.leaderboard-list {
  display: flex;
  justify-content: space-around;
  gap: 1rem;
  flex-wrap: wrap;
}

.leaderboard-row {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  display: flex;
  gap: 0.5rem;
  color: var(--text-main);
}

.leaderboard-row.empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.leaderboard-row .rank {
  color: var(--text-muted);
}

.leaderboard-row .name {
  font-weight: 700;
}

.leaderboard-row .score {
  color: var(--accent);
}

/* Username input formatting */
.input-group {
  margin-bottom: 1.5rem;
  width: 250px;
}

#username-input {
  width: 100%;
  background: rgba(203, 166, 247, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 0;
  padding: 0.8rem 1rem;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-align: center;
  outline: none;
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

#username-input:focus {
  border-color: var(--accent);
  background: rgba(203, 166, 247, 0.08);
}

#username-input::placeholder {
  color: rgba(203, 166, 247, 0.2);
}

/* HIDDEN FOR TOUCH MEDIA QUERIES ON INTERACTIVE ELEMENTS */
@media (pointer: fine) {
  html, body, a, button, .btn {
    cursor: none !important;
  }
}