:root {
  --bg: #000000;
  --panel: #000000;
  --panel-border: #1f1f1f;
  --text-main: #f4f4f4;
  --text-soft: #bdbdbd;
  --accent: #5fd7ff;
  --accent-strong: #87ff5f;
  --danger: #ff5f5f;
  --warning: #ffd75f;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  min-height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-main);
  font-family: "Cascadia Code", "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  overflow: hidden;
}

.shell-page {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

.terminal-frame {
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--panel-border);
  background: #050505;
}

.window-buttons {
  display: flex;
  gap: 0.55rem;
}

.button {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
}

.close {
  background: #ff5f56;
}

.minimize {
  background: #ffbd2e;
}

.maximize {
  background: #27c93f;
}

.terminal-meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-soft);
  font-size: 0.85rem;
}

.meta-divider {
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: #4b4b4b;
}

.terminal-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: 1rem;
  overflow: hidden;
}

.terminal-output {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 0.35rem;
  padding-bottom: 1rem;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

.terminal-output::-webkit-scrollbar {
  width: 0.55rem;
}

.terminal-output::-webkit-scrollbar-thumb {
  background: #333333;
}

.output-block {
  margin-bottom: 0.9rem;
}

.prompt-echo {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.prompt-echo .command {
  color: var(--text-main);
}

.line {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.line.highlight {
  color: var(--accent);
}

.line.success {
  color: var(--accent-strong);
}

.line.warning {
  color: var(--warning);
}

.line.error {
  color: var(--danger);
}

.line.dim {
  color: #808080;
}

.copy-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  width: 100%;
  padding: 0.2rem 0;
  border: 0;
  background: transparent;
  color: var(--text-main);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.copy-line:hover {
  color: var(--accent);
}

.copy-line.copied {
  color: var(--accent-strong);
}

.copy-label {
  color: var(--text-soft);
}

.copy-value {
  color: inherit;
  word-break: break-word;
}

.copy-hint {
  color: #808080;
  margin-left: auto;
  font-size: 0.88rem;
}

.directory-entry {
  color: var(--accent);
}

.file-entry {
  color: var(--text-main);
}

.prompt-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.75rem;
  padding-top: 0.85rem;
  padding-bottom: 0.2rem;
  border-top: 1px solid var(--panel-border);
  position: sticky;
  bottom: 0;
  z-index: 2;
  background: var(--panel);
}

.prompt-label {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  white-space: nowrap;
  color: var(--accent-strong);
}

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

.prompt-path {
  color: var(--accent);
}

.terminal-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-main);
  font: inherit;
}

.terminal-input:disabled {
  cursor: wait;
  opacity: 0.7;
}

.pdf-viewer {
  margin-top: 0.25rem;
  border: 1px solid var(--panel-border);
  background: #050505;
}

.pdf-toolbar {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--panel-border);
  color: var(--text-soft);
  font-size: 0.9rem;
}

.pdf-frame {
  display: block;
  width: 100%;
  height: min(84vh, 1100px);
  border: 0;
  background: #111111;
}

@media (max-width: 640px) {
  .terminal-body {
    padding: 0.85rem;
  }

  .prompt-row,
  .prompt-label,
  .prompt-echo {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .pdf-frame {
    height: 72vh;
  }
}