:root {
  --neon-green: #39FF14;
  --neon-blue: #48ecff;
  --terminal-bg: #0b100b;
  --terminal-line: #39ff1470;
  --border-radius: 0.55rem;
}

body {
  background: var(--terminal-bg);
  margin: 0;
  padding: 0;
  font-family: 'Share Tech Mono', monospace;
  color: var(--neon-green);
  min-height: 100dvh;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.terminal-window {
  width: 97vw;
  max-width: 940px;
  height: 90vh;
  min-height: 410px;
  border: 3px solid var(--neon-green);
  box-shadow: 0 0 24px 4px #39ff1437, 0 0 0 2px #111 inset;
  border-radius: var(--border-radius);
  background: var(--terminal-bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.terminal-header {
  font-size: 1.28em;
  font-weight: bold;
  color: var(--neon-green);
  padding: 0.7em 1em 0.7em 1.25em;
  border-bottom: 2px solid var(--neon-green);
  text-shadow: 0 0 8px var(--neon-green);
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: 0.4em;
}
.terminal-dot {
  width: 1.15em;
  height: 1.15em;
  border: 1.2px solid var(--neon-green);
  border-radius: 50%;
  opacity: 0.7;
  margin-left: 0.1em;
}
.terminal-dot.help {
  background: transparent;
  border: none;
}

.scanlines {
  pointer-events: none;
  position: absolute;
  left: 0; top: 0; width: 100%; height: 100%;
  z-index: 20;
  background: repeating-linear-gradient(
    to bottom,
    rgba(57,255,20,0.045),
    rgba(57,255,20,0.10) 1px,
    transparent 2px,
    transparent 22px
  );
  mix-blend-mode: lighten;
  animation: scanlines-move 2.5s linear infinite;
}
@keyframes scanlines-move {
  0% { background-position-y: 0; }
  100% { background-position-y: 22px; }
}

.terminal-chat-area {
  flex: 1;
  padding: 1.35em 1.5em 0.2em 1.5em;
  overflow-y: auto;
  font-size: 1.21em;
  background: repeating-linear-gradient(
    to bottom,
    rgba(57,255,20,0.028) 0px,
    rgba(57,255,20,0.036) 1px,
    transparent 12px,
    transparent 30px
  );
}

.msg {
  margin: 0.18em 0 0.18em 0;
  padding: 0.02em 0;
  line-height: 1.5;
  text-align: left;
  word-break: break-word;
  letter-spacing: 0.01em;
  font-size: 0.7em;
  font-family: inherit;
  border: none;
  background: none;
  box-shadow: none;
}

.msg.sys {
  color: var(--neon-green);
  opacity: 0.88;
}
.msg.ai {
  color: var(--neon-blue);
  font-weight: 600;
}
.msg.user {
  color: var(--neon-green);
  font-weight: 600;
}
.msg.user::before {
  content: '[USER] ';
  color: var(--neon-green);
  font-weight: 700;
}
.msg.ai::before {
  content: '[SYSTEM] ';
  color: var(--neon-blue);
  font-weight: 700;
}

.terminal-input-area {
  border-top: 2px solid var(--neon-green);
  background: rgba(0,0,0,0.08);
  padding: 0.32em 1.2em 0.32em 0.9em;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
  min-height: 2.4em;
  font-size: 1.08em;
}
.prompt {
  color: var(--neon-green);
  font-weight: 700;
  margin-right: 0.7em;
  font-size: 1.09em;
  text-shadow: 0 0 7px var(--neon-green);
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--neon-green);
  font-size: 1.1em;
  font-family: inherit;
  padding: 0.15em 0.7em 0.15em 0;
  letter-spacing: 0.01em;
  caret-color: var(--neon-green);
  box-shadow: none;
}
.terminal-input::placeholder {
  color: #39ff1477;
  opacity: 1;
}

.blinking-cursor {
  display: inline-block;
  width: 1.05em;
  min-width: 1em;
  height: 1.18em;
  margin-left: 0.15em;
  margin-bottom: 0.13em;
  vertical-align: bottom;
  background: var(--neon-green);
  opacity: 1;
  animation: blink 0.87s steps(1) infinite;
  border-radius: 0.13em;
  box-shadow: 0 0 10px #39ff1463;
}

@keyframes blink {
  0%, 60% { opacity: 1;}
  61%, 100% { opacity: 0;}
}

@media (max-width: 700px) {
  .terminal-window { max-width: 99vw; height: 98vh; }
  .terminal-header, .terminal-input-area { font-size: 0.96em;}
  .terminal-chat-area { font-size: 1.05em;}
}
@media (max-width: 480px) {
  .terminal-window { max-width: 100vw; height: 100dvh;}
  .terminal-header, .terminal-input-area { font-size: 0.92em;}
  .terminal-chat-area { font-size: 0.93em;}
}

.terminal-chat-area::-webkit-scrollbar {
  width: 11px;
  background: #121812;
}

.terminal-chat-area::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #39ff1490 10%, #0b100b 100%);
  border-radius: 8px;
  border: 2px solid #39FF14;
  box-shadow: 0 0 8px 2px #39ff1444;
}

.terminal-chat-area::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #48ecff 10%, #39ff14 90%);
}

.terminal-chat-area::-webkit-scrollbar-track {
  background: #131722;
  border-radius: 8px;
  box-shadow: 0 0 6px #39ff142a inset;
}

/* Firefox support */
.terminal-chat-area {
  scrollbar-color: #39FF14 #131722;
  scrollbar-width: thin;
}

.terminal-title {
  color: var(--neon-green);
  text-decoration: none;
  text-shadow: 0 0 8px var(--neon-green);
  font-weight: bold;
  font-size: 1.15em;
  transition: filter 0.2s, text-shadow 0.2s;
  cursor: pointer;
}
.terminal-title:hover {
  filter: brightness(1.3);
  text-shadow: 0 0 15px var(--neon-green), 0 0 2px #fff;
}