:root {
  --bg: #000000;
  --green: #00ff41;
  --green-dim: #0a7a25;
  --magenta: #ff2fd6;
  --cyan: #22e6ff;
  --amber: #ffb000;
  --panel-bg: #050805;
}

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

html, body {
  background: var(--bg);
  color: var(--green);
  font-family: 'Share Tech Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

body {
  background:
    radial-gradient(ellipse at center, rgba(0,60,20,0.15) 0%, rgba(0,0,0,1) 80%),
    repeating-linear-gradient(0deg, rgba(0,255,65,0.03) 0px, rgba(0,255,65,0.03) 1px, transparent 1px, transparent 3px);
}

#glitch-overlay {
  position: fixed; inset: 0; pointer-events: none; z-index: 9999;
  mix-blend-mode: screen; opacity: 0;
  background: linear-gradient(90deg, rgba(255,47,214,0.4), rgba(34,230,255,0.4));
}
#glitch-overlay.flash { opacity: 0.12; animation: flick 0.1s steps(2) infinite; }
@keyframes flick { 0% { transform: translateX(-3px);} 100% { transform: translateX(3px);} }

#app {
  max-width: 1200px; margin: 0 auto; padding: 16px;
  display: flex; flex-direction: column; gap: 14px;
}

/* Header */
#header { text-align: center; padding: 8px 0 2px; }
#title {
  font-family: 'VT323', monospace;
  font-size: clamp(1.8rem, 6vw, 3.4rem);
  letter-spacing: 2px; color: var(--green);
  text-shadow: 0 0 8px rgba(0,255,65,0.7), 0 0 20px rgba(0,255,65,0.3);
  line-height: 1;
}
#title.glitching {
  animation: rgbsplit 0.12s steps(2) 4;
}
@keyframes rgbsplit {
  0%   { text-shadow: -3px 0 var(--magenta), 3px 0 var(--cyan); transform: skewX(-2deg); }
  50%  { text-shadow: 3px 0 var(--magenta), -3px 0 var(--cyan); transform: skewX(2deg); }
  100% { text-shadow: -2px 0 var(--magenta), 2px 0 var(--cyan); transform: none; }
}
#subtitle {
  font-family: 'VT323', monospace;
  font-size: clamp(0.9rem, 2.5vw, 1.3rem);
  color: var(--green-dim); margin-top: 2px; letter-spacing: 1px;
}
#cursor { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Main layout */
#main {
  display: grid; grid-template-columns: 1fr 320px; gap: 16px;
  align-items: start;
}

/* Canvas */
#canvas-section { display: flex; flex-direction: column; gap: 12px; }
#canvas-wrap {
  position: relative; border: 3px solid var(--green-dim);
  box-shadow: 3px 3px 0 rgba(0,255,65,0.25), 0 0 30px rgba(0,255,65,0.15) inset;
  background: #020402; min-height: 260px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; cursor: pointer;
}
#canvas-wrap.drag { border-color: var(--magenta); box-shadow: 0 0 30px var(--magenta) inset; }
#canvas { max-width: 100%; height: auto; display: block; image-rendering: pixelated; }

#scanlines {
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.25) 0px, rgba(0,0,0,0.25) 1px, transparent 1px, transparent 3px);
  mix-blend-mode: multiply;
}

#dropzone {
  position: absolute; inset: 12px;
  border: 2px dashed var(--green-dim);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; text-align: center; color: var(--green);
  font-family: 'VT323', monospace; font-size: clamp(1rem, 3vw, 1.6rem);
  text-shadow: 0 0 6px rgba(0,255,65,0.6);
  padding: 20px;
}
#dz-sub { font-size: 0.9rem; color: var(--green-dim); }

#processing {
  position: absolute; display: none;
  background: rgba(0,0,0,0.85); border: 1px solid var(--magenta);
  color: var(--magenta); padding: 8px 18px; font-family: 'VT323', monospace;
  font-size: 1.4rem; letter-spacing: 2px; text-shadow: 0 0 8px var(--magenta);
}
.dots { animation: blink 0.6s steps(1) infinite; }

/* Actions */
#actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cmd {
  background: #020402; color: var(--green);
  border: 1px solid var(--green-dim); padding: 8px 12px;
  font-family: 'Share Tech Mono', monospace; font-size: 0.85rem;
  cursor: pointer; letter-spacing: 1px; transition: all 0.08s;
  text-shadow: 0 0 4px rgba(0,255,65,0.4);
}
.cmd:hover { background: var(--green); color: #000; text-shadow: none; box-shadow: 0 0 12px var(--green); }
.cmd:active { transform: translate(1px,1px); }
.cmd.export { border-color: var(--amber); color: var(--amber); text-shadow: 0 0 4px rgba(255,176,0,0.5); }
.cmd.export:hover { background: var(--amber); color: #000; box-shadow: 0 0 12px var(--amber); }

/* Panel */
#panel {
  background: var(--panel-bg); border: 1px solid var(--green-dim);
  padding: 10px; display: flex; flex-direction: column; gap: 8px;
  box-shadow: inset 0 0 20px rgba(0,255,65,0.06);
}
.panel-head {
  font-family: 'VT323', monospace; font-size: 1.2rem; color: var(--cyan);
  text-shadow: 0 0 6px rgba(34,230,255,0.5); border-bottom: 1px solid var(--green-dim);
  padding-bottom: 3px; margin-top: 4px;
}

#effects { display: flex; flex-direction: column; gap: 6px; }
.effect {
  border: 1px solid #0a3315; padding: 6px 8px; opacity: 0.55;
  transition: all 0.15s; background: rgba(0,255,65,0.02);
}
.effect.active { opacity: 1; border-color: var(--green-dim); background: rgba(0,255,65,0.05); }
.ehead { display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.toggle { color: var(--magenta); font-weight: bold; }
.effect.active .toggle { color: var(--green); }
.elabel { font-size: 0.85rem; letter-spacing: 1px; }
.edesc { font-size: 0.68rem; color: var(--green-dim); margin: 2px 0 4px; }
.barwrap { position: relative; display: flex; align-items: center; gap: 6px; }
.asciibar { color: var(--cyan); font-size: 0.85rem; letter-spacing: 1px; white-space: nowrap; }
.slider {
  -webkit-appearance: none; appearance: none; flex: 1; height: 4px;
  background: #0a3315; outline: none; cursor: pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 16px;
  background: var(--green); cursor: pointer; box-shadow: 0 0 6px var(--green);
}
.slider::-moz-range-thumb {
  width: 12px; height: 16px; background: var(--green); border: none; cursor: pointer;
}

/* Console */
#console {
  font-size: 0.72rem; color: var(--green-dim); max-height: 180px;
  overflow-y: auto; line-height: 1.5; padding-right: 4px;
}
#console::-webkit-scrollbar { width: 6px; }
#console::-webkit-scrollbar-thumb { background: var(--green-dim); }
.cline { white-space: pre-wrap; word-break: break-word; }
.cline.ok { color: var(--green); }
.cline.err { color: var(--magenta); text-shadow: 0 0 4px var(--magenta); }

/* Footer */
#footer {
  text-align: center; font-size: 0.72rem; color: var(--green-dim);
  border-top: 1px solid #0a3315; padding-top: 10px; letter-spacing: 0.5px;
}
#footer a { color: var(--cyan); text-decoration: none; }
#footer a:hover { text-shadow: 0 0 8px var(--cyan); text-decoration: underline; }

/* Mobile */
@media (max-width: 800px) {
  #main { grid-template-columns: 1fr; }
  #panel { order: 2; }
  .cmd { flex: 1 1 auto; text-align: center; }
  #console { max-height: 120px; }
}