/* GitHub Primer's own color tokens, light and dark, for consistency with
   the GitHub-hosted docs site and repository around this app. */
:root {
  --ink: #1f2328;
  --muted: #656d76;
  --line: #d1d9e0;
  --paper: #f6f8fa;
  --panel: #ffffff;
  --accent: #0969da;
  --btn-primary-bg: #1f883d;
  --btn-primary-hover: #1a7f37;
  --ok: #1a7f37;
  --bad: #cf222e;
  --pdf-bg: #d1d9e0;
  --error-bg: #ffebe9;
  --code-bg: #f6f8fa;
  --shadow: rgba(31, 35, 40, 0.15);
}
html[data-theme="dark"] {
  --ink: #e6edf3;
  --muted: #848d97;
  --line: #30363d;
  --paper: #0d1117;
  --panel: #161b22;
  --accent: #4493f8;
  --btn-primary-bg: #238636;
  --btn-primary-hover: #2ea043;
  --ok: #3fb950;
  --bad: #f85149;
  --pdf-bg: #30363d;
  --error-bg: #3c1618;
  --code-bg: #161b22;
  --shadow: rgba(1, 4, 9, 0.6);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  padding: 0;
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  display: flex;
  flex-direction: column;
}
header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.5rem;
}
header .header-left { flex: 1 1 0; min-width: min(100%, 26rem); display: flex; align-items: center; gap: 0.4rem 1.25rem; }
header .header-left #back-to-welcome { flex: none; }
header .titles { min-width: 0; }
#back-to-welcome[hidden] { display: none; }
button.with-icon { display: inline-flex; align-items: center; gap: 0.4rem; }
.octicon { flex: none; vertical-align: text-bottom; }
header h1 { font-size: 1.1rem; margin: 0; }
header p { margin: 0; color: var(--muted); font-size: 0.85rem; }
button {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  border-radius: 3px;
}
button.icon { padding: 0.5rem 0.6rem; font-size: 1rem; line-height: 1; }
button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
button:disabled { opacity: 0.5; cursor: default; }
button.primary {
  border-color: var(--btn-primary-bg);
  background: var(--btn-primary-bg);
  color: #fff;
  font-weight: 600;
}
button.primary:hover:not(:disabled) {
  border-color: var(--btn-primary-hover);
  background: var(--btn-primary-hover);
  color: #fff;
}
button.primary:disabled { background: var(--btn-primary-bg); opacity: 0.5; }
button.link {
  border: none;
  background: none;
  padding: 0.2rem 0.3rem;
  color: var(--accent);
  text-decoration: underline;
}

/* --- GitHub sign-in / save-to-fork / PR link ---------------------------
   A single morphing control: one segmented "save" button whose label
   changes with state, a PR link that only appears once a PR exists, and a
   small sign-out icon. */
.github-status[hidden] { display: none; }
.github-status { display: flex; align-items: center; gap: 0.5rem; }
.github-segment {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.github-segment button { border: none; border-radius: 0; }
.github-segment[hidden] { display: none; }
.github-pr-link[hidden] { display: none; }
.github-pr-link { color: var(--accent); text-decoration: underline; font-size: 0.85rem; }
#github-open-pr[hidden] { display: none; }

.content { flex: 1 1 auto; display: flex; min-height: 0; }

/* --- Welcome screen -------------------------------------------------- */

.welcome[hidden], #workspace[hidden] { display: none; }
/* An address that names a scenario: the loading screen stands in for the welcome screen until it is known which one to show. */
.route-loading { display: none; flex: 1 1 auto; align-items: center; justify-content: center; gap: 0.8rem; color: var(--muted); }
.route-pending .route-loading { display: flex; }
.route-pending #welcome { display: none; }
@media (prefers-reduced-motion: no-preference) {
  .welcome { transition: opacity 0.22s ease, transform 0.22s ease; }
  .welcome.leaving { opacity: 0; transform: translateY(-10px) scale(0.98); }
  #workspace.entering { animation: workspace-in 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
  @keyframes workspace-in {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
  }
}
.welcome {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  overflow: auto;
}
.welcome-inner { max-width: 62rem; width: 100%; }
/* The resume list fills the row. */
.welcome-top { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 1.5rem; }
.welcome-top > * { flex: 1 1 20rem; min-width: 0; }
/* The member badge is a fourth column. It grows in from nothing so the panes
   glide aside instead of jumping when membership is confirmed. */
.welcome-picker > .mode-choice { flex: 0 0 12rem; overflow: hidden; }
@media (prefers-reduced-motion: no-preference) {
  .welcome-picker > .mode-choice { animation: badge-in 0.45s cubic-bezier(0.16, 1, 0.3, 1); }
  @keyframes badge-in {
    from { flex-basis: 0; margin-right: -1.5rem; opacity: 0; }
    to { flex-basis: 12rem; margin-right: 0; opacity: 1; }
  }
}
.welcome-top .resume-drafts { margin-bottom: 0; }
.edit-branch-prompt { margin-bottom: 1.5rem; }
.mode-choice[hidden], .edit-branch-prompt[hidden] { display: none; }
/* Edit mode keeps the new-scenario controls on screen but out of reach. */
.dimmed { opacity: 0.4; filter: grayscale(1); pointer-events: none; transition: opacity 0.2s; }
.mode-choice .scratch-row { margin-top: 0; }
.mode-choice button[aria-pressed="true"] { border-color: var(--accent, currentColor); font-weight: 600; }
.resume-drafts[hidden] { display: none; }
.resume-drafts { margin-bottom: 1.5rem; }
.combobox-list.resume-list { position: static; max-height: none; box-shadow: none; }
.welcome-inner h2 { margin: 0 0 0.3rem; font-size: 1.3rem; }
.welcome-inner .hint { margin: 0 0 1.1rem; color: var(--muted); font-size: 0.9rem; }
/* Three equal-width blocks, side by side, statically: no motion between
   them, nothing to animate. */
.welcome-picker { display: flex; align-items: flex-start; gap: 1.5rem; }
.picker-slide { flex: 1 1 0; min-width: 0; }
.picker-slide-go { display: flex; flex-direction: column; align-items: center; text-align: center; }
.combobox { position: relative; }
#search {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 4px;
  outline: none;
}
#search:focus { border-color: var(--accent); }
.combobox-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: 22rem;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 8px 20px var(--shadow);
  z-index: 10;
}
.combobox-group-label {
  padding: 0.4rem 0.75rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: var(--paper);
  position: sticky;
  top: 0;
}
.resume-row { display: flex; align-items: stretch; }
.resume-row .combobox-item { flex: 1; min-width: 0; }
.resume-delete { border: 0; background: transparent; cursor: pointer; padding: 0 0.75rem; display: inline-flex; align-items: center; }
.resume-delete:hover, .resume-delete:focus-visible { background: var(--line); }
.combobox-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.9rem;
  border: none;
  border-radius: 0;
  background: none;
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
}
.combobox-item:hover, .combobox-item.active { background: var(--line); }
.combobox-empty { padding: 0.6rem 0.9rem; color: var(--muted); font-size: 0.85rem; }
.scratch-row {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.name-field { max-width: 20rem; margin: 0 auto; }
#scenario-name {
  width: 100%;
  font: inherit;
  font-size: 0.92rem;
  padding: 0.65rem 0.7rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 4px;
  outline: none;
}
#scenario-name:focus { border-color: var(--accent); }
#scenario-name[aria-invalid="true"] { border-color: var(--bad); }
.name-error[hidden] { display: none; }
.name-error { margin: 0.5rem 0 0; font-size: 0.85rem; color: var(--bad); text-align: left; }
.go-hint { margin: 0.6rem 0 0; font-size: 0.85rem; color: var(--muted); min-height: 1.2em; }
#go { white-space: nowrap; }

/* --- Header actions (shown once a scenario is chosen) ------------------ */

.header-actions[hidden] { display: none; }
.header-actions { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.upload-menu { position: relative; }
.upload-popover[hidden] { display: none; }
.upload-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 21rem;
  max-width: 88vw;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 10px 26px var(--shadow);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.82rem;
  z-index: 20;
}
.upload-field { display: flex; flex-direction: column; align-items: flex-start; gap: 0.35rem; }
.upload-field label { font-weight: 600; }
.upload-field input[type="file"] { font: inherit; font-size: 0.8rem; max-width: 100%; }
.upload-status { color: var(--muted); }
.upload-status code { font-size: 0.78rem; }
.upload-status.bad { color: var(--bad); }
input.upload-rename {
  font: inherit;
  font-size: 0.8rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  width: 100%;
}
.upload-rename-list[hidden] { display: none; }
.upload-rename-list { display: flex; flex-direction: column; gap: 0.3rem; width: 100%; }
.upload-rename-row { display: flex; align-items: center; gap: 0.4rem; }
.upload-rename-row .orig-name { color: var(--muted); font-size: 0.76rem; white-space: nowrap; }

/* --- Workspace --------------------------------------------------------- */

#workspace { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }
main {
  flex: 1 1 auto;
  display: flex;
  min-height: 0;
  gap: 1px;
  background: var(--line);
}
@media (max-width: 850px) {
  main { flex-direction: column; overflow-y: auto; }
  .pane { min-height: 24rem; }
}
.pane {
  flex: 1 1 50%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel);
}
.pane-head {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.pane-head h2 { font-size: 0.85rem; margin: 0; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.draft-note { font-size: 0.8rem; color: var(--accent); }
.unsaved-note { font-size: 0.8rem; color: var(--bad); font-weight: 600; }
.unsaved-note[hidden] { display: none; }
.editor-wrap { position: relative; flex: 1 1 auto; min-height: 0; }
.editor-wrap .CodeMirror {
  position: absolute;
  inset: 0;
  height: 100%;
  font: 13px/1.5 ui-monospace, "Liberation Mono", monospace;
}
.pdf-pane-body-wrap {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.pdf-pane-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.pdf-pane-body.dimmed { filter: brightness(0.7); }
.build-overlay {
  position: absolute;
  inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  z-index: 5;
}
.build-overlay:not([hidden]) { display: flex; }
.spinner.big { width: 2rem; height: 2rem; border-width: 3px; }
embed.pdf-view {
  flex: 1 1 auto;
  width: 100%;
  border: none;
  background: var(--pdf-bg);
}
.empty-pdf {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  padding: 2rem;
  text-align: center;
}
.empty-pdf.loading { flex-direction: column; gap: 0.8rem; }
.status-bar {
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.spinner {
  width: 0.9rem;
  height: 0.9rem;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
.spinner[hidden] { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.error-panel {
  margin: 0 1rem 1rem;
  border: 1px solid var(--bad);
  background: var(--error-bg);
  padding: 0.85rem 1rem;
  border-radius: 3px;
}
.error-panel .first-error {
  font: 13px/1.5 ui-monospace, "Liberation Mono", monospace;
  color: var(--bad);
  white-space: pre-wrap;
  word-break: break-word;
}
details.full-log summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.6rem;
}
details.full-log pre {
  font: 12px/1.5 ui-monospace, monospace;
  background: var(--code-bg);
  border: 1px solid var(--line);
  padding: 0.7rem;
  max-height: 20rem;
  overflow: auto;
  white-space: pre-wrap;
  margin: 0.5rem 0 0;
}

.confirm-dialog {
  max-width: min(26rem, calc(100vw - 2rem));
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 8px 32px var(--shadow);
}
.confirm-dialog::backdrop { background: rgba(1, 4, 9, 0.5); }
.confirm-dialog h2 { margin: 0 0 0.5rem; font-size: 1.1rem; }
.confirm-dialog p { margin: 0 0 0.5rem; }
.confirm-warning { color: var(--bad); font-weight: 600; }
.confirm-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }
button.danger { border-color: var(--bad); background: var(--bad); color: #fff; }
button.danger:hover:not(:disabled) { border-color: var(--bad); background: var(--bad); color: #fff; filter: brightness(0.9); }