/* Past free-response questions (lib/past-frq.js, assets/js/past-frq.js).
   Loaded only by those pages, after site.css, and built on its tokens so both
   color schemes come for free. */

.pf-format { border-left: 4px solid var(--warn); background: var(--warn-tint); padding: 10px 14px; border-radius: 0 var(--radius) var(--radius) 0; font-size: 0.95rem; }
.pf-note { border-left: 4px solid var(--bad); background: var(--bad-tint); padding: 10px 14px; border-radius: 0 var(--radius) var(--radius) 0; font-size: 0.95rem; }
.pf-topics { margin-top: 14px; }
.pf-topics-label { font-weight: 700; color: var(--ink); margin: 0 0 4px; font-size: 0.92rem; }
.pf-topics ul { margin: 0; padding-left: 1.2em; }

.pf-filter { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin: 0 0 8px; }
.pf-filter label { display: block; width: 100%; max-width: 34rem; }
.pf-filter select { display: block; width: 100%; margin-top: 4px; font: inherit; padding: 8px 10px; border-radius: 8px; border: 1.5px solid var(--line-strong); background: var(--card); color: var(--ink); max-width: 100%; }
.pf-tally { margin: 0; color: var(--muted); font-size: 0.95rem; }
.pf-card[hidden], .pf-paper[hidden] { display: none; }
.pf-card-units { display: block; color: var(--muted); font-size: 0.85rem; margin-top: 6px; }
.pf-status { display: block; font-weight: 700; color: var(--good); font-size: 0.9rem; margin-top: 4px; }
.pf-status:empty { display: none; }

.pf-step { display: flex; align-items: center; gap: 10px; margin-top: 34px; }
.pf-step span { display: inline-grid; place-items: center; width: 1.8em; height: 1.8em; border-radius: 50%; background: var(--accent); color: var(--card); font-size: 0.85em; flex: none; }
.pf-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.pf-timer { font-family: var(--mono); font-size: 1.05rem; color: var(--ink); }
.pf-timer.pf-over { color: var(--bad); }

/* College Board's PDF beside the page on a wide screen. Phones open it in a new
   tab instead: most phone browsers show only a download button in a frame. */
.pf-pdf { display: none; width: 100%; height: 78vh; min-height: 520px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--card); margin-top: 12px; }
@media (min-width: 900px) { .pf-pdf { display: block; } }

.pf-parts { list-style: none; padding: 0; margin: 0; }
.pf-part { margin: 0 0 22px; }
.pf-part-label { display: block; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.pf-response { display: block; width: 100%; font: inherit; font-size: 0.97rem; line-height: 1.5; padding: 10px; border-radius: 8px; border: 1.5px solid var(--line-strong); background: var(--page); color: var(--ink); resize: vertical; min-height: 8rem; }
.pf-response:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; }
.pf-saved { color: var(--muted); font-size: 0.9rem; min-height: 1.3em; }
.pf-saved.pf-warn { color: var(--bad); font-weight: 700; }

.pf-sketch { margin-top: 8px; }
.pf-canvas-wrap { border: 1.5px solid var(--line-strong); border-radius: 8px; background: var(--page); overflow: hidden; }
.pf-canvas { display: block; width: 100%; touch-action: none; cursor: crosshair; color: var(--ink); --pf-grid: var(--line); }
.pf-sketch-tools { display: flex; gap: 8px; margin-top: 6px; }

.pf-score { margin: 14px 0; font-weight: 700; color: var(--ink); }
.pf-score input { width: 4.5em; font: inherit; padding: 6px 8px; margin: 0 6px; border-radius: 8px; border: 1.5px solid var(--line-strong); background: var(--card); color: var(--ink); }
.pf-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

.pf-pager { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 20px; margin: 40px 0 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.pf-credit { color: var(--muted); font-size: 0.85rem; margin-top: 24px; }

@media print {
  .pf-pdf, .pf-actions, .pf-tools, .pf-sketch-tools, .pf-sketch-open, .pf-pager, .pf-saved, .pf-filter { display: none !important; }
  .pf-response { border: 1px solid #999; min-height: 0; height: auto; overflow: visible; }
}