@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;700&display=swap');

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

:root {
  --green: #00ff41;
  --green-dim: #00cc33;
  --red: #ff0040;
  --red-dim: #cc0033;
  --cyan: #00e5ff;
  --yellow: #ffea00;
  --white: #e0e0e0;
  --dim: #555555;
  --bg: #0a0a0a;
  --bg-light: #111111;
  --glow-green: 0 0 10px rgba(0, 255, 65, 0.3);
  --glow-red: 0 0 10px rgba(255, 0, 64, 0.3);
}

html, body {
  height: 100%;
  background: var(--bg);
  font-family: 'Fira Code', 'Courier New', monospace;
  color: var(--green);
  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: 1000;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0, 255, 65, 0.015);
  pointer-events: none;
  z-index: 999;
  animation: flicker 0.15s infinite alternate;
}

@keyframes flicker {
  0% { opacity: 0.97; }
  100% { opacity: 1; }
}

#matrix-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: none;
}

#terminal {
  position: relative;
  z-index: 1;
  height: 100vh;
  overflow-y: auto;
  padding: 20px;
  padding-bottom: 100px;
  scroll-behavior: smooth;
}

#terminal::-webkit-scrollbar { width: 6px; }
#terminal::-webkit-scrollbar-track { background: var(--bg); }
#terminal::-webkit-scrollbar-thumb { background: #222; border-radius: 3px; }
#terminal::-webkit-scrollbar-thumb:hover { background: #333; }

.line {
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.6;
  font-size: 14px;
  min-height: 1.6em;
  opacity: 0;
  animation: lineAppear 0.1s forwards;
}

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

.line.green  { color: var(--green); text-shadow: var(--glow-green); }
.line.red    { color: var(--red); text-shadow: var(--glow-red); }
.line.cyan   { color: var(--cyan); text-shadow: 0 0 10px rgba(0, 229, 255, 0.3); }
.line.yellow { color: var(--yellow); text-shadow: 0 0 10px rgba(255, 234, 0, 0.3); }
.line.white  { color: var(--white); }
.line.dim    { color: var(--dim); }
.line.rainbow {
  background: linear-gradient(90deg, #ff0040, #ff8c00, #ffea00, #00ff41, #00e5ff, #8040ff, #ff0040);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#input-area {
  display: flex;
  align-items: center;
  font-size: 14px;
  line-height: 1.6;
  margin-top: 4px;
}

#input-area .prompt {
  color: var(--red);
  text-shadow: var(--glow-red);
  margin-right: 8px;
  white-space: nowrap;
  font-weight: 700;
}

#command-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--green);
  font-family: inherit;
  font-size: inherit;
  caret-color: var(--green);
  text-shadow: var(--glow-green);
}

#command-input::placeholder { color: #333; }

.loading-bar { display: inline-block; color: var(--cyan); }
.loading-bar .bar-fill { color: var(--green); text-shadow: var(--glow-green); }
.loading-bar .bar-empty { color: #222; }

.glitch { animation: glitch 2.5s infinite; }

@keyframes glitch {
  0%, 92%, 100% { transform: none; opacity: 1; }
  93% { transform: translate(-2px, 1px) skewX(-1deg); opacity: 0.8; }
  94% { transform: translate(2px, -1px) skewX(1deg); opacity: 0.9; }
  95% { transform: none; opacity: 1; }
  96% { transform: translate(1px, 2px); opacity: 0.85; }
  97% { transform: none; opacity: 1; }
}

.boot-glitch { position: relative; }

.typing-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--green);
  animation: blink 0.53s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}

@keyframes blink { 50% { opacity: 0; } }

#input-area.hidden { display: none; }

.help-cmd { color: var(--green); text-shadow: var(--glow-green); }
.help-sep { color: var(--dim); }
.help-desc { color: var(--white); }

::selection { background: rgba(0, 255, 65, 0.2); color: var(--green); }

@media (max-width: 600px) {
  .line, #input-area, #command-input { font-size: 12px; }
  #terminal { padding: 10px; }
}