:root {
  --green: #00ff41;
  --green-dim: #00c032;
  --green-dark: #003b0f;
  --bg: #000000;
}

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

body {
  background: var(--bg);
  color: var(--green);
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.08) 2px, rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  z-index: 100;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
  z-index: 99;
}

#terminal {
  width: 100%;
  max-width: 720px;
  height: 100vh;
  padding: 48px 40px 80px;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: screenOn 0.4s ease-out forwards;
}

@keyframes screenOn {
  0%   { opacity: 0; filter: brightness(3); }
  10%  { opacity: 1; filter: brightness(1.5); }
  15%  { opacity: 0.7; }
  20%  { opacity: 1; filter: brightness(1); }
  100% { opacity: 1; }
}

.line {
  text-shadow: 0 0 4px var(--green), 0 0 10px rgba(0,255,65,0.4);
  opacity: 0;
  animation: fadeIn 0.05s forwards;
}

@keyframes fadeIn { to { opacity: 1; } }

.line.blank   { height: 1.6em; opacity: 1; }
.line.divider { border-bottom: 1px solid var(--green-dim); margin: 16px 0; opacity: 0; animation: fadeIn 0.05s forwards; text-shadow: none; }
.line.label   { font-size: 18px; letter-spacing: 0.08em; color: var(--green); }

#output {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--green-dim) transparent;
  scroll-behavior: smooth;
}

#output::-webkit-scrollbar { width: 4px; }
#output::-webkit-scrollbar-thumb { background: var(--green-dim); }

#input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(0,255,65,0.2);
}

#input-row span {
  color: var(--green);
  text-shadow: 0 0 6px var(--green);
  flex-shrink: 0;
}

#cmd-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--green);
  font-family: inherit;
  font-size: inherit;
  flex: 1;
  caret-color: var(--green);
  text-shadow: 0 0 6px var(--green);
  letter-spacing: 0.05em;
}

#cmd-input::placeholder { color: var(--green-dark); }

.art {
  white-space: pre;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 1.45;
  color: var(--green-dim);
  text-shadow: 0 0 8px rgba(0,255,65,0.5);
  opacity: 0;
  animation: fadeIn 0.05s forwards;
  margin: 12px 0;
  letter-spacing: 0.05em;
}

.item-found { color: #ffe066; text-shadow: 0 0 8px rgba(255,224,102,0.6); }
.danger     { color: #ff4444; text-shadow: 0 0 8px rgba(255,68,68,0.6); }
.success    { color: #66ffaa; text-shadow: 0 0 8px rgba(102,255,170,0.6); }
.dim        { color: var(--green-dim); opacity: 0.7; }
.warning    { color: #ffaa00; text-shadow: 0 0 8px rgba(255,170,0,0.5); }

#hint-bar {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--green-dim);
  letter-spacing: 0.12em;
  text-shadow: 0 0 6px rgba(0,255,65,0.3);
  background: rgba(0,0,0,0.85);
  padding: 6px 16px;
  border: 1px solid rgba(0,192,50,0.2);
  white-space: nowrap;
  z-index: 150;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  #terminal { animation: none; }
  .line, .art { animation: none; opacity: 1; }
  #output { scroll-behavior: auto; }
}