:root {
  --bg-page: #211e3a;
  --bg-terminal: #1e1e1e;
  --bg-header: #2d2d2d;
  --text-primary: #e6edf3;
  --text-muted: #7d8590;
  --green: #3fb950;
  --pink: #f778ba;
  --cyan: #79c0ff;
  --yellow: #e3b341;
  --red: #f85149;
  --purple: #bc8cff;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Menlo, Monaco,
    Consolas, monospace;
  --font-size: 14px;
  --line-height: 1.6;
  --terminal-radius: 12px;
}

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

body {
  background-color: var(--bg-page);
  font-family: var(--font-mono);
  font-size: var(--font-size);
  line-height: var(--line-height);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

/* Terminal window */
.terminal-window {
  width: min(900px, 90vw);
  height: min(520px, 70vh);
  border-radius: var(--terminal-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-window.minimized {
  height: 34px;
  width: 250px;
}

.terminal-window.fullscreen {
  position: fixed;
  width: 100vw;
  height: 100vh;
  border-radius: 0;
  top: 0;
  left: 0;
  z-index: 1000;
}

.terminal-window.closed {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
}

/* Header bar */
.terminal-header {
  background: var(--bg-header);
  height: 34px;
  min-height: 34px;
  display: flex;
  align-items: center;
  padding-left: 12px;
  gap: 8px;
  user-select: none;
  -webkit-user-select: none;
}

.btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  cursor: pointer;
  transition: opacity 0.15s ease, filter 0.15s ease;
}

.btn:hover {
  filter: brightness(1.3);
}

.btn.close {
  background: #e75448;
}

.btn.minimize {
  background: #e5c30f;
}

.btn.fullscreen {
  background: #3bb662;
}

/* Terminal body */
#terminal {
  flex: 1;
  background: var(--bg-terminal);
  padding: 12px 16px;
  overflow-y: auto;
  overflow-x: hidden;
  font-family: var(--font-mono);
  font-size: var(--font-size);
  line-height: var(--line-height);
  color: var(--text-primary);
}

#terminal::-webkit-scrollbar {
  width: 6px;
}

#terminal::-webkit-scrollbar-track {
  background: transparent;
}

#terminal::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

/* Output lines */
.output-line {
  word-wrap: break-word;
}

#terminal p,
#terminal ul {
  margin: 0;
  padding: 0;
}

/* Prompt line */
.prompt-line {
  white-space: nowrap;
}

.prompt {
  margin-right: 8px;
}

.prompt-user {
  color: var(--green);
}

.prompt-tick {
  color: var(--pink);
}

.prompt-input {
  color: var(--text-primary);
  white-space: pre;
}

/* Hidden real input */
#terminal-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

/* Cursor */
.cursor {
  display: inline-block;
  width: 2px;
  border-left: 2px solid var(--text-primary);
  height: 1.2em;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Content styling */
.dir {
  color: var(--cyan);
}

.green {
  color: var(--green);
}

.cyan {
  color: var(--cyan);
}

.error {
  color: var(--red);
}

.muted {
  color: var(--text-muted);
}

.command {
  color: var(--purple);
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: opacity 0.15s ease;
}

a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

ul {
  list-style: none;
  padding-left: 4px;
}

ul li {
  padding: 2px 0;
}

ul li::before {
  content: '- ';
  color: var(--text-muted);
}

/* Reopen prompt (shown when terminal is closed) */
.reopen-prompt {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-size);
  cursor: pointer;
  transition: color 0.2s ease;
  display: none;
}

.reopen-prompt:hover {
  color: var(--text-primary);
}

.reopen-prompt.visible {
  display: block;
}

/* Footer */
.footer {
  margin-top: 20px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
}

.footer a {
  color: var(--cyan);
  font-weight: 600;
}

/* Tab completion dropdown */
.tab-options {
  color: var(--text-muted);
  padding: 2px 0;
}

/* Responsive */
@media (max-width: 650px) {
  body {
    padding: 10px;
    justify-content: flex-start;
    padding-top: 10vh;
  }

  .terminal-window {
    width: 100%;
    height: 65vh;
  }

  :root {
    --font-size: 13px;
  }
}