:root {
  color-scheme: dark;
  --bg: #070B16;
  --terminal: #090F1E;
  --titlebar: #0C1425;
  --line: #202D43;
  --text: #DCE7F5;
  --muted: #9AAAC0;
  --faint: #62738D;
  --cyan: #70F1FF;
  --lime: #C4FF78;
  --amber: #FFC477;
  --accent: var(--cyan);
  --glow: rgba(47, 101, 155, .16);
  --error: var(--amber);
  --selection-bg: #244C59;
  --selection-text: #F0FCFF;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
:root[data-theme="lime"] {
  --bg: #090F08;
  --terminal: #0E160C;
  --titlebar: #141E11;
  --line: #2B3D25;
  --accent: var(--lime);
  --glow: rgba(98, 145, 52, .16);
  --selection-bg: #354C28;
  --selection-text: #F2FFE8;
}
/* Inspired by mdBook's Rust theme: parchment, brown framing, rust accents. */
:root[data-theme="amber"] {
  color-scheme: light;
  --bg: #A99A8B;
  --terminal: #B8B1A3;
  --titlebar: #3B2E2A;
  --line: #B38F6B;
  --text: #262625;
  --muted: #514A42;
  --faint: #746354;
  --accent: #80351C;
  --bar-text: #D9CEC5;
  --bar-accent: #E69F67;
  --error: #8C391F;
  --glow: rgba(179, 143, 107, .18);
  --selection-bg: #70412B;
  --selection-text: #FFF0DE;
}
* { box-sizing: border-box; }
::selection { background: var(--selection-bg); color: var(--selection-text); }
html, body { height: 100%; margin: 0; }
body {
  height: 100vh;
  height: 100dvh;
  padding: 10px;
  background: radial-gradient(ellipse at 15% 0%, var(--glow), transparent 65%), var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
a { color: var(--accent); text-underline-offset: 4px; }
.window {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  border-radius: 8px;
  background: var(--terminal);
  box-shadow: 0 16px 60px #0003;
}
.titlebar {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 36px;
  padding: 6px 15px;
  border-bottom: 1px solid var(--line);
  background: var(--titlebar);
  color: var(--bar-text, var(--muted));
  font-size: 11px;
}
.window-label { display: flex; align-items: center; gap: 12px; min-width: 0; }
#window-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.terminal-mark { flex: none; color: var(--bar-accent, var(--accent)); font-weight: 600; }
.theme-label { color: var(--bar-accent, var(--accent)); }
.screen { flex: 1; min-height: 0; overflow: auto; padding: 18px 18px 24px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; overflow-wrap: anywhere; cursor: text; }
.intro { margin-bottom: 27px; }
h1 { margin: 0 0 3px; color: var(--accent); font-size: inherit; font-weight: 600; }
p { margin: 0 0 8px; }
.muted, .tagline { color: var(--muted); }
.menu { width: 100%; margin: 0; }
.menu-heading { margin-bottom: 2px; color: var(--muted); }
.menu-row { display: flex; align-items: baseline; gap: 6px; min-height: 26px; }
.command { padding: 0; border: 0; background: transparent; color: var(--accent); text-align: left; }
.command:hover { text-decoration: underline; text-underline-offset: 4px; }
.leader { flex: 1; min-width: 8px; border-bottom: 1px dotted var(--faint); opacity: .55; align-self: center; }
.description { color: var(--muted); text-align: right; font-size: inherit; }
.entry { margin: 18px 0; }
.echo { color: var(--muted); white-space: pre-wrap; }
.echo-prefix { color: var(--accent); }
.response { margin-top: 5px; white-space: pre-wrap; }
.response p { max-width: 80ch; }
.response p:last-child { margin-bottom: 0; }
.project { margin-bottom: 16px; }
.project-title { color: var(--accent); font-weight: 600; }
.error { color: var(--error); }
.prompt { display: flex; align-items: baseline; gap: 5px; min-height: 26px; margin-top: 2px; }
.prompt-label { flex: none; color: var(--muted); white-space: nowrap; }
.host { color: var(--accent); }
.prompt-path { color: var(--muted); }
#command-input { flex: 1; width: 0; min-width: 0; padding: 0; border: 0; border-radius: 0; outline: none; background: transparent; color: var(--text); caret-color: var(--accent); }
/* The native caret is the focus indicator: no textbox chrome or fake cursor. */
.prompt:not(:focus-within) .prompt-label { opacity: .65; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 600px) {
  body { padding: 5px; font-size: 12px; }
  .screen { padding: 18px 13px; }
  .titlebar { padding-inline: 12px; }
  .description { font-size: 11px; }
  .menu-row { gap: 7px; min-height: 32px; }
  .prompt-path { display: none; }
  /* Avoid iOS zoom when focusing the input. */
  #command-input { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }