:root {
  --bg: #c0c0c0;
  --bg-alt: #b8b8b8;
  --panel: #e8e8e8;
  --panel-strong: #ffffff;
  --terminal: #020702;
  --terminal-text: #d6ffd9;
  --terminal-accent: #57ff93;
  --terminal-grid: rgba(87, 255, 147, 0.05);
  --text: #000000;
  --muted: #505050;
  --border: #000000;
  --bevel-light: #ffffff;
  --bevel-mid: #dfdfdf;
  --bevel-dark: #808080;
  --bevel-deep: #404040;
  --titlebar-start: #000080;
  --titlebar-end: #1084d0;
  --warning: #ff0000;
  --warning-bg: #ffffcc;
  --ok: #00aa00;
}

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

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

body {
  margin: 0;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(45deg, var(--bg-alt) 25%, transparent 25%),
    linear-gradient(-45deg, var(--bg-alt) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--bg-alt) 75%),
    linear-gradient(-45deg, transparent 75%, var(--bg-alt) 75%);
  background-size: 4px 4px;
  background-position: 0 0, 0 2px, 2px -2px, -2px 0;
  font-family: "MS Sans Serif", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

[hidden] {
  display: none !important;
}

button,
input {
  font: inherit;
}

a {
  color: #0000ff;
  text-decoration: underline;
}

a:hover {
  color: #ff0000;
}

a:visited {
  color: #800080;
}

.desktop-shell {
  min-height: 100vh;
  padding: 24px;
  display: grid;
  place-items: center;
}

.window {
  border: 2px solid;
  border-color: var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light);
  box-shadow:
    inset -1px -1px 0 var(--bevel-deep),
    inset 1px 1px 0 var(--bevel-mid);
  background: var(--bg);
}

.title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  color: #ffffff;
  background: linear-gradient(to right, var(--titlebar-start), var(--titlebar-end));
  border-bottom: 2px solid var(--border);
}

.title-bar-copy {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.title-icon {
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  color: var(--text);
  background: #ffffcc;
  border: 2px solid;
  border-color: var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light);
  box-shadow:
    inset -1px -1px 0 var(--bevel-deep),
    inset 1px 1px 0 var(--bevel-mid);
  font-family: "Courier New", Courier, monospace;
  font-size: 12px;
}

.title-pill {
  padding: 3px 10px;
  color: #ffff00;
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid;
  border-color: #6aa8ff #002c6b #002c6b #6aa8ff;
  box-shadow:
    inset -1px -1px 0 #001f4d,
    inset 1px 1px 0 #9bc0ff;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.title-bar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.win-button {
  min-height: 32px;
  padding: 6px 12px;
  border: 2px solid;
  border-color: var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light);
  box-shadow:
    inset -1px -1px 0 var(--bevel-deep),
    inset 1px 1px 0 var(--bevel-mid);
  background: var(--bg);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.win-button:hover {
  background: #d0d0d0;
}

.win-button:active {
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  transform: translate(1px, 1px);
}

.win-button:focus-visible,
.gate-input:focus-visible,
#command-input:focus-visible {
  outline: 2px dotted var(--border);
  outline-offset: 2px;
}

.window-body {
  padding: 16px;
}

.gate-screen {
  width: min(100%, 420px);
}

.gate-window {
  width: 100%;
}

.gate-body {
  display: grid;
  gap: 12px;
  padding: 18px 16px 16px;
}

.gate-line {
  margin: 0;
  font-weight: 700;
}

.gate-input,
#command-input {
  width: 100%;
  border: 2px solid;
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  background: var(--panel-strong);
  color: var(--text);
  padding: 9px 10px;
}

.gate-actions {
  display: flex;
  justify-content: flex-end;
}

.gate-error {
  min-height: 16px;
  margin: 0;
  color: var(--warning);
  font-size: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shell-window {
  width: min(100%, 1100px);
  position: relative;
}

.shell-window.drawer-open .window-body {
  grid-template-columns: minmax(0, 1fr) 320px;
}

.notice-strip {
  padding: 6px 12px;
  border-bottom: 2px solid var(--border);
  background: var(--warning-bg);
  font-family: "Courier New", Courier, monospace;
  font-size: 12px;
  letter-spacing: 0.05em;
}

.window-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.terminal-panel {
  min-width: 0;
}

.terminal-screen {
  min-height: 460px;
  max-height: 62vh;
  overflow: auto;
  border: 2px solid;
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  background-color: var(--terminal);
  background-image:
    linear-gradient(to bottom, rgba(87, 255, 147, 0.03), rgba(87, 255, 147, 0)),
    linear-gradient(var(--terminal-grid) 1px, transparent 1px);
  background-size: 100% 100%, 100% 4px;
  color: var(--terminal-text);
  padding: 18px 18px 22px;
  font-family: "Lucida Console", "Courier New", Courier, monospace;
  font-size: 15px;
  line-height: 1.72;
  letter-spacing: 0.01em;
  text-rendering: optimizeLegibility;
}

.terminal-empty {
  color: #7fe7a2;
}

.terminal-line {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 7px 0;
  word-break: break-word;
  border-bottom: 1px dotted rgba(87, 255, 147, 0.16);
}

.terminal-line:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.terminal-label {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 24px;
  padding: 2px 8px;
  color: #89cfff;
  font-weight: 700;
  border: 1px solid rgba(137, 207, 255, 0.28);
  background: rgba(137, 207, 255, 0.08);
}

.terminal-line.command .terminal-label {
  color: #fff27c;
  border-color: rgba(255, 242, 124, 0.34);
  background: rgba(255, 242, 124, 0.1);
}

.terminal-copy {
  min-width: 0;
  color: inherit;
  white-space: pre-wrap;
}

.terminal-copy.terminal-copy-block {
  display: block;
  padding-top: 2px;
}

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

.terminal-line.warn {
  color: #ffe77c;
}

.terminal-line.error {
  color: #ff8e8e;
}

.terminal-line.info {
  color: #a7dcff;
}

.terminal-line.muted {
  color: #9dd9a5;
}

.terminal-line.good .terminal-label {
  color: #7fffb0;
  border-color: rgba(127, 255, 176, 0.28);
  background: rgba(127, 255, 176, 0.08);
}

.terminal-line.warn .terminal-label {
  color: #fff1a6;
  border-color: rgba(255, 241, 166, 0.3);
  background: rgba(255, 241, 166, 0.1);
}

.terminal-line.error .terminal-label {
  color: #ffb0b0;
  border-color: rgba(255, 176, 176, 0.3);
  background: rgba(255, 176, 176, 0.1);
}

.terminal-line.info .terminal-label {
  color: #bce6ff;
  border-color: rgba(188, 230, 255, 0.28);
  background: rgba(188, 230, 255, 0.08);
}

.terminal-line.muted .terminal-label {
  color: #b5f2bf;
  border-color: rgba(181, 242, 191, 0.24);
  background: rgba(181, 242, 191, 0.08);
}

.terminal-screen a {
  color: #7ddcff;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.command-row {
  margin-top: 12px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: stretch;
}

.prompt-label {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border: 2px solid;
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  background: var(--terminal);
  color: var(--terminal-accent);
  font-family: "Lucida Console", "Courier New", Courier, monospace;
  font-weight: 700;
}

.command-submit {
  min-width: 88px;
}

.rails-drawer {
  min-width: 0;
}

.drawer-window {
  border: 2px solid;
  border-color: var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light);
  box-shadow:
    inset -1px -1px 0 var(--bevel-deep),
    inset 1px 1px 0 var(--bevel-mid);
  background: var(--panel);
}

.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: #ffffff;
  background: linear-gradient(to right, var(--titlebar-start), var(--titlebar-end));
  border-bottom: 2px solid var(--border);
}

.drawer-close {
  min-height: 28px;
  padding-inline: 10px;
}

.drawer-copy {
  margin: 0;
  padding: 12px;
  font-size: 13px;
}

.rails-table {
  display: grid;
  gap: 8px;
  padding: 0 12px 12px;
}

.rail-row {
  border: 2px solid;
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  background: var(--panel-strong);
  padding: 10px;
}

.rail-row.is-optional {
  background: #ffffcc;
}

.rail-label {
  display: block;
  margin-bottom: 4px;
  font-weight: 700;
}

.rail-detail {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
}

.rail-env {
  display: block;
  margin-top: 8px;
  font-family: "Courier New", Courier, monospace;
  font-size: 11px;
  color: var(--muted);
}

.hit-counter {
  margin: 0 12px 12px;
  padding: 10px;
  border: 2px solid;
  border-color: var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);
  box-shadow:
    inset 1px 1px 0 var(--bevel-deep),
    inset -1px -1px 0 var(--bevel-mid);
  background: #000000;
  color: #00ff00;
  font-family: "Courier New", Courier, monospace;
  font-weight: 700;
}

.status-bar {
  display: grid;
  grid-template-columns: 140px 200px minmax(0, 1fr) 130px;
  border-top: 2px solid var(--border);
  background: var(--bg);
}

.status-cell {
  padding: 8px 10px;
  border-right: 2px solid var(--bevel-dark);
  display: grid;
  gap: 4px;
  align-content: center;
  min-width: 0;
}

.status-cell:last-child {
  border-right: 0;
}

.status-label {
  font-size: 11px;
  letter-spacing: 0.08em;
}

.status-cell strong {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hit-cell strong {
  font-family: "Courier New", Courier, monospace;
  color: #008a00;
}

@media (max-width: 900px) {
  .desktop-shell {
    padding: 14px;
    place-items: start stretch;
  }

  .shell-window,
  .gate-screen {
    width: 100%;
  }

  .shell-window.drawer-open .window-body,
  .window-body {
    grid-template-columns: 1fr;
  }

  .status-bar {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .desktop-shell {
    padding: 8px;
  }

  .title-bar,
  .drawer-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .title-bar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .command-row {
    grid-template-columns: 1fr;
  }

  .prompt-label {
    justify-content: flex-start;
    min-height: 36px;
  }

  .terminal-screen {
    min-height: 360px;
    max-height: none;
  }

  .terminal-line {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}