/* ==========================================================================
   styles.css — the author site
   Palette and type: Brandon's "Confused4Now fonts and colours", v1 warm
   (28 Sep 2026), with the token names the portal uses (--portal-*), so the two
   read as one platform and a change to one is a copy to the other. Values as
   brief-palette-darkmode.md gives them for the portal.

   Dark mode follows the system until the author uses the toggle; the choice is
   kept in localStorage "theme" and applied before first paint (theme-init.js).
   ========================================================================== */

:root {
  --portal-accent:       #4E3E7A;
  --portal-accent-hover: #211F29;
  --portal-accent-soft:  #9C82D6; /* decoration only: 2.8:1, never text */
  --portal-wash:         #F3ECFB;
  --portal-ink:          #211F29;
  --portal-muted:        #6E6A78;
  --portal-faint:        #9A96A4;
  --portal-border:       #E5E0D5;
  --portal-bg:           #F3F0EA;
  --portal-bg-soft:      #FFFFFF;
  --portal-ok:           #4E3E7A;
  --portal-mark:         #FDF2B3;
  --portal-danger:       #A1261B;
  --portal-del:          #FBE3E0;
  --portal-del-strong:   #F2B8B1;
  --portal-add:          #E3F1E4;
  --portal-add-strong:   #B5DCB9;

  --portal-font-ui:   "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --portal-font-text: "Source Serif 4", Georgia, "Times New Roman", serif;
  --portal-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --portal-size-body: 1.0625rem;
  --portal-lh-body:   1.6;
  --portal-page:      60rem;
  --portal-rhythm:    1.5rem;
  --portal-gutter:    1rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --portal-accent:       #9C82D6;
    --portal-accent-hover: #F3ECFB;
    --portal-accent-soft:  #7C66B0;
    --portal-wash:         rgba(156, 130, 214, 0.16);
    --portal-ink:          #E5E0D5;
    --portal-muted:        #ACA8B7;
    --portal-faint:        #5F5B69;
    --portal-border:       #3F3D48;
    --portal-bg:           #211F29;
    --portal-bg-soft:      #2B2933;
    --portal-ok:           #9C82D6;
    --portal-mark:         rgba(253, 242, 179, 0.22);
    --portal-danger:       #F2A69D;
    --portal-del:          rgba(242, 166, 157, 0.14);
    --portal-del-strong:   rgba(242, 166, 157, 0.34);
    --portal-add:          rgba(129, 201, 149, 0.14);
    --portal-add-strong:   rgba(129, 201, 149, 0.34);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --portal-accent:       #9C82D6;
  --portal-accent-hover: #F3ECFB;
  --portal-accent-soft:  #7C66B0;
  --portal-wash:         rgba(156, 130, 214, 0.16);
  --portal-ink:          #E5E0D5;
  --portal-muted:        #ACA8B7;
  --portal-faint:        #5F5B69;
  --portal-border:       #3F3D48;
  --portal-bg:           #211F29;
  --portal-bg-soft:      #2B2933;
  --portal-ok:           #9C82D6;
  --portal-mark:         rgba(253, 242, 179, 0.22);
  --portal-danger:       #F2A69D;
  --portal-del:          rgba(242, 166, 157, 0.14);
  --portal-del-strong:   rgba(242, 166, 157, 0.34);
  --portal-add:          rgba(129, 201, 149, 0.14);
  --portal-add-strong:   rgba(129, 201, 149, 0.34);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding: var(--portal-rhythm) var(--portal-gutter) calc(var(--portal-rhythm) * 3);
  background: var(--portal-bg);
  color: var(--portal-ink);
  font-family: var(--portal-font-ui);
  font-size: var(--portal-size-body);
  line-height: var(--portal-lh-body);
  overflow-wrap: anywhere;
}
main, .masthead { max-width: var(--portal-page); margin: 0 auto; }
a { color: var(--portal-accent); text-decoration-color: var(--portal-accent-soft); text-underline-offset: 2px; }
a:hover { color: var(--portal-accent-hover); }
:focus-visible { outline: 2px solid var(--portal-accent); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 0.75rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; margin-top: calc(var(--portal-rhythm) * 1.25); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 0.75rem; }
code { font-family: var(--portal-font-mono); font-size: 0.85em; padding: 0.05rem 0.3rem; border-radius: 4px; background: var(--portal-bg-soft); }
.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; }
.muted { color: var(--portal-muted); }
.small { font-size: 0.9rem; }

/* --- masthead --------------------------------------------------------------- */
.masthead { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; margin-bottom: var(--portal-rhythm); }
.masthead .home { display: block; color: var(--portal-ink); }
.masthead .home:hover { color: var(--portal-accent); }
.masthead .home svg { display: block; height: 28px; width: auto; }
.masthead .where { color: var(--portal-muted); font-size: 0.95rem; }
.masthead .right { display: flex; align-items: center; gap: 0.75rem; margin-left: auto; }
.who { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--portal-muted); font-size: 0.9rem; }
.who img { width: 22px; height: 22px; border-radius: 50%; }
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 2.25rem; height: 2.25rem; padding: 0;
  border: 1px solid var(--portal-border); border-radius: 50%; background: var(--portal-bg-soft); color: var(--portal-ink); cursor: pointer; }
.theme-toggle svg { width: 1.1rem; height: 1.1rem; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: inline; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: inline; }
}

/* --- building blocks ------------------------------------------------------------ */
.crumbs { margin: 0 0 0.5rem; font-size: 0.9rem; color: var(--portal-muted); }
.crumbs a { color: var(--portal-muted); }
.tabs { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: 0 0 var(--portal-rhythm); border-bottom: 1px solid var(--portal-border); }
.tabs a { padding: 0.4rem 0.8rem; border: 1px solid transparent; border-bottom: 0; border-radius: 6px 6px 0 0; margin-bottom: -1px;
  color: var(--portal-muted); text-decoration: none; }
.tabs a[aria-current="page"] { border-color: var(--portal-border); background: var(--portal-bg-soft); color: var(--portal-ink); font-weight: 600; }
.card { margin: 0 0 0.75rem; padding: 0.9rem 1rem; border: 1px solid var(--portal-border); border-radius: 10px; background: var(--portal-bg-soft); }
.card h3 { margin: 0 0 0.25rem; }
.list { list-style: none; margin: 0; padding: 0; }
.list > li { padding: 0.6rem 0; border-top: 1px solid var(--portal-border); }
.list > li:first-child { border-top: 0; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem; }
.row .grow { flex: 1 1 12rem; min-width: 0; }
.btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.45rem 1rem; border: 1px solid var(--portal-border); border-radius: 8px;
  background: var(--portal-bg-soft); color: var(--portal-ink); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover:not(:disabled) { border-color: var(--portal-muted); color: var(--portal-ink); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { border-color: var(--portal-accent); background: var(--portal-accent); color: var(--portal-bg-soft); }
:root[data-theme="dark"] .btn.primary { color: var(--portal-bg); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { color: var(--portal-bg); } }
.btn.primary:hover:not(:disabled) { background: var(--portal-accent-hover); border-color: var(--portal-accent-hover); color: var(--portal-bg-soft); }
.btn.link { border: 0; background: none; padding: 0; color: var(--portal-accent); font-weight: 400; text-decoration: underline; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: var(--portal-rhythm) 0 0; }
.note { margin: 0 0 var(--portal-rhythm); padding: 0.7rem 0.9rem; border: 1px solid var(--portal-border); border-left: 3px solid var(--portal-accent);
  border-radius: 8px; background: var(--portal-wash); }
.note.warn { border-left-color: var(--portal-danger); }
.note p:last-child, .card p:last-child { margin-bottom: 0; }
.error { color: var(--portal-danger); }
.steps { margin: 0 0 var(--portal-rhythm); padding-left: 1.25rem; }
.badge { display: inline-block; padding: 0.05rem 0.5rem; border: 1px solid var(--portal-border); border-radius: 999px; font-size: 0.8rem; color: var(--portal-muted); }
.badge.accepted { border-color: var(--portal-accent); color: var(--portal-accent); }
.confirm { display: flex; gap: 0.5rem; align-items: flex-start; margin: 0.75rem 0; }
.confirm input { margin-top: 0.35rem; }
label.field { display: block; margin: 0 0 0.75rem; font-weight: 600; }
label.field select, label.field input[type="text"] { display: block; width: 100%; max-width: 28rem; margin-top: 0.25rem; padding: 0.4rem 0.55rem;
  border: 1px solid var(--portal-border); border-radius: 6px; background: var(--portal-bg-soft); color: var(--portal-ink); font: inherit; font-weight: 400; }
.file-drop { display: block; padding: 1.25rem; border: 2px dashed var(--portal-border); border-radius: 10px; text-align: center; background: var(--portal-bg-soft); }
.progress { height: 6px; border-radius: 3px; background: var(--portal-border); overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--portal-accent); transition: width 0.2s; }
.busy { display: flex; align-items: center; gap: 0.6rem; color: var(--portal-muted); }
.busy::before { content: ""; width: 1rem; height: 1rem; border: 2px solid var(--portal-border); border-top-color: var(--portal-accent); border-radius: 50%;
  animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .busy::before { animation: none; } }
blockquote.said { margin: 0 0 0.75rem; padding: 0.6rem 0.9rem; border-left: 3px solid var(--portal-accent-soft); background: var(--portal-bg-soft);
  font-family: var(--portal-font-text); white-space: pre-wrap; }

/* --- a chapter, as readers will see it (text face) ------------------------------ */
.preview { padding: 1.25rem 1.5rem; border: 1px solid var(--portal-border); border-radius: 10px; background: var(--portal-bg-soft);
  font-family: var(--portal-font-text); line-height: 1.7; }
.preview h1, .preview h2, .preview h3, .preview h4 { font-family: var(--portal-font-ui); }
.preview img { max-width: 100%; height: auto; }
.preview table { border-collapse: collapse; display: block; overflow-x: auto; }
.preview th, .preview td { border: 1px solid var(--portal-border); padding: 0.3rem 0.5rem; }
.preview pre { overflow-x: auto; }

/* --- differences ---------------------------------------------------------------- */
.diff { border: 1px solid var(--portal-border); border-radius: 8px; overflow: hidden; background: var(--portal-bg-soft);
  font-family: var(--portal-font-mono); font-size: 0.8rem; }
.diff .file { padding: 0.35rem 0.75rem; border-bottom: 1px solid var(--portal-border); background: var(--portal-wash); font-family: var(--portal-font-ui);
  font-size: 0.9rem; font-weight: 600; }
.diff .hunk { border-top: 1px solid var(--portal-border); }
.diff .hunk:first-of-type { border-top: 0; }
.diff .hh { padding: 0.2rem 0.75rem; color: var(--portal-muted); background: var(--portal-bg); }
.diff .line { display: grid; grid-template-columns: 1.5rem 1fr; white-space: pre-wrap; overflow-wrap: anywhere; }
.diff .line > span:first-child { text-align: center; color: var(--portal-faint); user-select: none; }
.diff .line > span:last-child { padding-right: 0.75rem; }
.diff .del { background: var(--portal-del); }
.diff .add { background: var(--portal-add); }
.diff del { background: var(--portal-del-strong); text-decoration: none; border-radius: 2px; }
.diff ins { background: var(--portal-add-strong); text-decoration: none; border-radius: 2px; }
.prose-change { margin: 0 0 0.35rem; padding: 0.35rem 0.6rem; border-radius: 6px; font-family: var(--portal-font-text); white-space: pre-wrap; }
.prose-change.before { background: var(--portal-del); }
.prose-change.after { background: var(--portal-add); }

@media (max-width: 640px) {
  .masthead .right { width: 100%; justify-content: space-between; margin-left: 0; }
  .preview { padding: 1rem; }
}
@media print {
  .theme-toggle, .actions { display: none; }
}

/* --- small utilities (no inline styles: the CSP allows none) ------------------- */
.flush { margin: 0; }
.flush-top { margin-top: 0; }
.below { margin: 0.25rem 0 0; }
.spaced { margin-bottom: 1rem; }
pre.wrap { white-space: pre-wrap; }
.note.warn { background: var(--portal-bg-soft); }
.outcome:not(:empty) { margin-top: var(--portal-rhythm); }
ul.report > li { margin-bottom: 0.5rem; }
.badge.level-ok { border-color: var(--portal-border); }
.badge.level-look { border-color: var(--portal-accent); color: var(--portal-accent); }
.badge.level-warn { border-color: var(--portal-danger); color: var(--portal-danger); }

/* --- the questions ------------------------------------------------------------------ */
.sentence { margin: 0; font-family: var(--portal-font-text); line-height: 1.7; }
.sentence mark { padding: 0 0.1rem; border-radius: 3px; background: var(--portal-mark); color: inherit; }
.sentence mark.new { background: var(--portal-add-strong); }
.progress.grow { flex: 1 1 8rem; }
details summary { cursor: pointer; font-weight: 600; color: var(--portal-accent); margin: 0.5rem 0; }