/**
 * @file public-workspace-viewer.css
 * @description Styles for the public (no-login) workspace document viewer. A two-column layout —
 *   table-of-contents sidebar + rendered markdown — that collapses to a single column on narrow
 *   screens, plus a print stylesheet so "Print / Save as PDF" produces a clean content-only page.
 *   All colors/spacing come from theme.css variables (no dark-only rgba, no hardcoded hex).
 * @version-history
 *   v1.0.0 — 2026-06-09 — Initial: slice 2 of the workspace public-sharing plan.
 *   v1.1.0 — 2026-06-09 — Continuous stacked-page layout (scroll-margin + per-page spacing so every
 *     shared page prints in one go); action-button group for "Copy AI link" + "Print".
 *   v1.2.0 — 2026-07-10 — TARGET-025: access-gate states (password form + sign-in required).
 */

.pwv-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  align-items: start;
  min-height: 60vh;
}

/* ── Table of contents ── */
.pwv-toc {
  position: sticky;
  top: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
}

.pwv-toc-head {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 0.25rem 0.5rem 0.5rem;
}

.pwv-toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.pwv-toc-item {
  text-align: left;
  background: transparent;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.6rem;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s ease;
}

.pwv-toc-item:hover {
  background: var(--bg-dim);
}

.pwv-toc-item.pwv-active {
  background: var(--bg-dim);
  color: var(--accent);
  font-weight: 600;
}

/* ── Main content ── */
.pwv-main {
  min-width: 0;
}

.pwv-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.pwv-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--bg-dim);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}

.pwv-bar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Card fill + shadow so the action buttons stand out against the page (matches the in-app toolbar). */
.pwv-action { background: var(--card); box-shadow: var(--shadow-sm); }
.pwv-action:hover { background: var(--bg-surface); border-color: var(--text-muted); }

.pwv-doc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem 2rem;
  /* Offset for the sticky-free window scroll so a scrolled-to page isn't hidden under the top nav. */
  scroll-margin-top: 1.5rem;
}

/* Stacked pages in the continuous whole-space view: space them out so the seam between pages reads. */
.pwv-doc + .pwv-doc { margin-top: 1.5rem; }

/* ── Markdown typography (scoped to the viewer; mirrors the in-app document view) ── */
.pwv-doc .md-body { font-size: 0.95rem; line-height: 1.7; color: var(--text); max-width: 78ch; overflow-wrap: break-word; }
.pwv-doc .md-body > :first-child { margin-top: 0; }
.pwv-doc .md-body > :last-child { margin-bottom: 0; }
.pwv-doc .md-body h1,
.pwv-doc .md-body h2,
.pwv-doc .md-body h3,
.pwv-doc .md-body h4,
.pwv-doc .md-body h5,
.pwv-doc .md-body h6 { font-weight: 700; line-height: 1.3; color: var(--text); margin: 1.8em 0 0.6em; }
.pwv-doc .md-body h1 { font-size: 1.7rem; letter-spacing: -0.01em; padding-bottom: 0.3em; border-bottom: 2px solid var(--border); margin-top: 0.2em; }
.pwv-doc .md-body h2 { font-size: 1.32rem; padding-bottom: 0.25em; border-bottom: 1px solid var(--border); }
.pwv-doc .md-body h3 { font-size: 1.13rem; }
.pwv-doc .md-body h4 { font-size: 1rem; }
.pwv-doc .md-body h5 { font-size: 0.9rem; }
.pwv-doc .md-body h6 { font-size: 0.85rem; color: var(--muted); }
.pwv-doc .md-body p { margin: 0.85em 0; }
.pwv-doc .md-body ul,
.pwv-doc .md-body ol { margin: 0.7em 0; padding-left: 1.7em; }
.pwv-doc .md-body ul { list-style: disc; }
.pwv-doc .md-body ol { list-style: decimal; }
.pwv-doc .md-body li { margin: 0.32em 0; padding-left: 0.2em; }
.pwv-doc .md-body li > ul,
.pwv-doc .md-body li > ol { margin: 0.32em 0; }
.pwv-doc .md-body a { color: var(--accent); text-decoration: none; }
.pwv-doc .md-body a:hover { text-decoration: underline; }
.pwv-doc .md-body strong { font-weight: 700; color: var(--text); }
.pwv-doc .md-body em { font-style: italic; }
.pwv-doc .md-body .md-code { font-family: var(--font-mono, ui-monospace, "SF Mono", Menlo, Consolas, monospace); font-size: 0.85em; background: var(--bg-dim); padding: 0.12em 0.42em; border-radius: 4px; border: 1px solid var(--border); }
.pwv-doc .md-body .md-pre { background: var(--bg-dim); border: 1px solid var(--border); border-radius: 8px; padding: 0.9em 1.1em; overflow-x: auto; margin: 1em 0; line-height: 1.5; }
.pwv-doc .md-body .md-pre .md-code { background: none; border: none; padding: 0; font-size: 0.84rem; }
.pwv-doc .md-body blockquote { margin: 1em 0; padding: 0.3em 1.1em; border-left: 3px solid var(--accent); background: var(--bg-dim); border-radius: 0 6px 6px 0; color: var(--muted); }
.pwv-doc .md-body blockquote p { margin: 0.4em 0; }
.pwv-doc .md-body table { border-collapse: collapse; margin: 1em 0; width: 100%; font-size: 0.9rem; }
.pwv-doc .md-body th,
.pwv-doc .md-body td { border: 1px solid var(--border); padding: 0.45em 0.75em; text-align: left; vertical-align: top; }
.pwv-doc .md-body th { background: var(--bg-dim); font-weight: 600; }
.pwv-doc .md-body tbody tr:nth-child(even) { background: var(--bg-dim); }
.pwv-doc .md-body .md-img { max-width: 100%; height: auto; border-radius: 6px; margin: 0.6em 0; }
.pwv-doc .md-body hr { border: none; border-top: 1px solid var(--border); margin: 1.6em 0; }

/* ── States ── */
.pwv-state {
  color: var(--muted);
  padding: 2rem 0;
  text-align: center;
}

.pwv-error {
  color: var(--danger, #E8564A);
}

.pwv-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--muted);
}

.pwv-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.pwv-empty h2 {
  color: var(--text);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}

/* ── Access gate (password / sign-in required) — TARGET-025 ── */
.pwv-gate-form {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.pwv-gate-input {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font-size: 0.95rem;
  min-width: 14rem;
}

.pwv-gate-err {
  color: var(--danger, #E8564A);
  margin-top: 0.7rem;
}

/* ── Responsive: stack the TOC above the content on narrow screens ── */
@media (max-width: 720px) {
  .pwv-container {
    grid-template-columns: 1fr;
  }
  .pwv-toc {
    position: static;
  }
}

/* ── Print: content only — hide the global site nav, the TOC, the action bar, and the card chrome.
 * `body.pwv-active` is added by the view while it is mounted (see public-workspace-viewer.js), so the
 * nav-hiding rule applies only on this page and only the document content reaches paper. ── */
@media print {
  /* Physical page margins so the text isn't flush against the paper edges. */
  @page { margin: 1.8cm; }
  body.pwv-active .topnav,
  body.pwv-active .pwv-toc,
  body.pwv-active .pwv-bar { display: none !important; }
  body.pwv-active .pwv-container {
    display: block !important;
    max-width: none;
    padding: 0;
  }
  body.pwv-active .pwv-doc {
    border: none;
    border-radius: 0;
    padding: 0;
  }
  body.pwv-active .pwv-doc .md-body { max-width: none; }
  /* Continuous whole-space print: start each shared page on a fresh sheet, and don't split a page's
   * heading off from its body across a sheet boundary. */
  body.pwv-active .pwv-doc + .pwv-doc { margin-top: 0; padding-top: 0; break-before: page; }
  body.pwv-active .pwv-doc .md-body h1,
  body.pwv-active .pwv-doc .md-body h2,
  body.pwv-active .pwv-doc .md-body h3 { break-after: avoid; }
}