:root {
    --teal:   #00ffcc;
    --red:    #ff0066;
    --amber:  #ffcc00;
    --bg:     #000913;
    --dim:    rgba(0,255,200,0.35);
    --dimmer: rgba(0,255,200,0.12);
  }

  * { margin:0; padding:0; box-sizing:border-box; }

  body {
    background: var(--bg);
    color: var(--teal);
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
  }

  /* ── SCANLINES ── */
  body::before {
    content:'';
    position: fixed; top:0; left:0; width:100%; height:100%;
    background: repeating-linear-gradient(
      0deg, transparent, transparent 2px,
      rgba(0,255,200,0.018) 2px, rgba(0,255,200,0.018) 4px
    );
    pointer-events: none; z-index: 100;
    animation: scanroll 9s linear infinite;
  }
  @keyframes scanroll {
    0%   { background-position: 0 0; }
    100% { background-position: 0 100px; }
  }

  /* ── NAV ── */
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 32px;
    border-bottom: 1px solid var(--dimmer);
    flex-shrink: 0;
  }
  .nav-brand {
    font-size: 15px;
    letter-spacing: 6px;
    text-decoration: none;
    color: var(--teal);
    text-shadow: 0 0 10px var(--teal);
  }
  .nav-links { display:flex; gap: 28px; }
  .nav-links a {
    font-size: 9px; letter-spacing: 4px;
    color: var(--dim); text-decoration: none;
    text-transform: uppercase; transition: color 0.2s;
  }
  .nav-links a:hover, .nav-links a.active { color: var(--teal); }

  /* ── PAGE HEADER ── */
  .page-header {
    padding: 36px 32px 24px;
    border-bottom: 1px solid var(--dimmer);
    flex-shrink: 0;
  }
  .page-header-label {
    font-size: 8px; letter-spacing: 5px;
    color: var(--dim); margin-bottom: 8px;
  }
  .page-header-title {
    font-size: clamp(20px, 3vw, 28px);
    letter-spacing: 5px;
    text-shadow: 0 0 14px var(--teal);
  }
  .page-header-sub {
    font-size: 9px; letter-spacing: 4px;
    color: var(--dim); margin-top: 6px;
  }

  /* ── MAIN LAYOUT ── */
  .main {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 0;
  }

  /* ── GAME COLUMN ── */
  .game-col {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--dimmer);
  }

  .game-frame-wrap {
    position: relative;
    flex: 1;
    min-height: 520px;
    background: #000;
  }

  .game-frame-wrap iframe {
    display: block;
    width: 100%; height: 100%;
    border: none;
    min-height: 520px;
  }

  /* corner brackets */
  .corner { position: absolute; width: 16px; height: 16px; }
  .corner.tl { top:8px;  left:8px;  border-top:1px solid var(--teal); border-left:1px solid var(--teal); }
  .corner.tr { top:8px;  right:8px; border-top:1px solid var(--teal); border-right:1px solid var(--teal);}
  .corner.bl { bottom:8px;left:8px; border-bottom:1px solid var(--teal);border-left:1px solid var(--teal);}
  .corner.br { bottom:8px;right:8px;border-bottom:1px solid var(--teal);border-right:1px solid var(--teal);}

  .game-meta {
    padding: 14px 20px;
    border-top: 1px solid var(--dimmer);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
  }
  .game-meta-tag {
    font-size: 8px; letter-spacing: 4px;
    color: var(--dim);
  }
  .game-meta-status {
    font-size: 8px; letter-spacing: 3px;
    color: var(--amber);
    text-shadow: 0 0 8px var(--amber);
  }
  .game-meta-status::before {
    content: '▶ ';
  }

  /* ── SIDEBAR ── */
  .sidebar {
    padding: 28px 20px;
    display: flex;
    flex-direction: column;
    gap: 28px;
  }

  .sidebar-section { display: flex; flex-direction: column; gap: 10px; }
  .sidebar-label {
    font-size: 7px; letter-spacing: 5px;
    color: var(--dim); border-bottom: 1px solid var(--dimmer);
    padding-bottom: 6px;
  }
  .sidebar-body {
    font-size: 9px; line-height: 1.9;
    color: rgba(0,255,200,0.5);
    letter-spacing: 1px;
  }
  .sidebar-body strong { color: var(--teal); }

  .controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 10px;
  }
  .ctrl-key {
    font-size: 8px; color: var(--teal);
    border: 1px solid var(--dimmer);
    padding: 4px 7px; text-align: center;
    letter-spacing: 2px;
    text-shadow: 0 0 6px var(--teal);
  }
  .ctrl-desc {
    font-size: 8px; color: var(--dim);
    display: flex; align-items: center;
    letter-spacing: 2px;
  }

  .enemy-list { display: flex; flex-direction: column; gap: 8px; }
  .enemy-row {
    display: flex; align-items: baseline; gap: 8px;
    font-size: 8px; letter-spacing: 2px;
  }
  .enemy-name { width: 54px; }
  .enemy-name.scout  { color: var(--red);   text-shadow: 0 0 6px var(--red); }
  .enemy-name.walker { color: var(--teal);  text-shadow: 0 0 6px var(--teal); }
  .enemy-name.tank   { color: var(--amber); text-shadow: 0 0 6px var(--amber); }
  .enemy-desc { color: var(--dim); }

  .tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
  .tag {
    font-size: 7px; letter-spacing: 3px;
    border: 1px solid var(--dimmer);
    padding: 4px 9px; color: var(--dim);
  }

  /* ── FOOTER ── */
  footer {
    padding: 16px 32px;
    border-top: 1px solid var(--dimmer);
    display: flex;
    justify-content: space-between;
    font-size: 8px; letter-spacing: 3px;
    color: var(--dim);
    flex-shrink: 0;
  }
  footer a { color: var(--dim); text-decoration: none; }
  footer a:hover { color: var(--teal); }

  /* ── RESPONSIVE ── */
  @media (max-width: 720px) {
    .main { grid-template-columns: 1fr; }
    .game-col { border-right: none; }
    .sidebar { border-top: 1px solid var(--dimmer); padding: 20px; }
    nav { padding: 14px 18px; }
    .page-header { padding: 24px 18px 18px; }
    footer { padding: 14px 18px; flex-direction: column; gap: 6px; }
  }
  
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: #000;
  overflow: hidden;
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  cursor: none;
}

canvas { display: block; }

/* ── SCANLINES ── */
#scanlines {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 10;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,255,200,0.025) 2px, rgba(0,255,200,0.025) 4px
  );
  animation: scanroll 8s linear infinite;
}
@keyframes scanroll {
  0%   { background-position: 0 0; }
  100% { background-position: 0 100px; }
}

/* ── CRT VIGNETTE ── */
#vignette {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 9;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.75) 100%);
}

/* ── GLITCH CLASS ── */
@keyframes glitch-shift {
  0%   { transform: translate(0,0);      filter: none; }
  20%  { transform: translate(-4px,1px); filter: hue-rotate(80deg) brightness(1.4); }
  40%  { transform: translate(4px,-2px); filter: hue-rotate(-80deg); }
  60%  { transform: translate(-2px,3px); filter: brightness(1.6); }
  80%  { transform: translate(3px,-1px); filter: hue-rotate(40deg); }
  100% { transform: translate(0,0);      filter: none; }
}
body.glitch canvas { animation: glitch-shift 0.12s steps(3) forwards; }

/* ── HUD ── */
#hud {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 20;
  padding: 22px 28px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.hud-top    { display: flex; justify-content: space-between; align-items: flex-start; }
.hud-bottom { display: flex; justify-content: space-between; align-items: flex-end; }
.hud-label  {
  color: rgba(0,255,200,0.45);
  font-size: 9px; letter-spacing: 4px; text-transform: uppercase;
  margin-bottom: 3px;
}
.hud-value  {
  color: #00ffcc; font-size: 20px; letter-spacing: 2px;
  text-shadow: 0 0 12px #00ffcc, 0 0 24px rgba(0,255,200,0.4);
}
.health-bar-wrap { width: 190px; }
.health-bar {
  width: 100%; height: 5px; margin-top: 5px;
  background: rgba(0,255,200,0.1);
  border: 1px solid rgba(0,255,200,0.25);
  overflow: hidden;
}
.health-fill {
  height: 100%; background: #00ffcc;
  box-shadow: 0 0 8px #00ffcc;
  transition: width 0.1s, background 0.3s, box-shadow 0.3s;
}
.health-fill.critical { background: #ff0066; box-shadow: 0 0 10px #ff0066; }
.wave-info { text-align: right; }

/* ── KILL FEED ── */
#killFeed {
  position: fixed; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px; letter-spacing: 5px;
  pointer-events: none; z-index: 30;
  opacity: 0; transition: opacity 0.25s;
  white-space: nowrap;
}
#killFeed.show { opacity: 1; }

/* ── OVERLAY ── */
#overlay {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 50;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: rgba(0,6,18,0.92);
}
.overlay-title {
  font-size: clamp(32px, 5vw, 56px);
  color: #00ffcc; letter-spacing: 10px;
  text-shadow: 0 0 20px #00ffcc, 0 0 50px rgba(0,255,200,0.5);
  margin-bottom: 6px;
  animation: titlepulse 2.5s ease-in-out infinite;
}
@keyframes titlepulse {
  0%,100% { opacity:1; }
  50%      { opacity:0.65; }
}
.overlay-sub {
  font-size: 11px; color: rgba(0,255,200,0.45);
  letter-spacing: 6px; margin-bottom: 52px;
}
.overlay-btn {
  border: 1px solid #00ffcc; color: #00ffcc;
  background: transparent; padding: 14px 44px;
  font-family: inherit; font-size: 12px;
  letter-spacing: 5px; cursor: pointer;
  text-transform: uppercase; transition: all 0.2s; margin: 5px;
}
.overlay-btn:hover {
  background: rgba(0,255,200,0.12);
  box-shadow: 0 0 24px rgba(0,255,200,0.35), inset 0 0 12px rgba(0,255,200,0.1);
}
.overlay-instructions {
  color: rgba(0,255,200,0.35); font-size: 9px;
  letter-spacing: 3px; margin-top: 44px;
  text-align: center; line-height: 2.2;
}
.death-title { color: #ff0066 !important; text-shadow: 0 0 20px #ff0066, 0 0 50px rgba(255,0,102,0.5) !important; }
.final-score {
  color: #ffcc00; font-size: 13px; letter-spacing: 4px;
  margin-bottom: 36px; text-shadow: 0 0 10px #ffcc00;
}