/* The evaluation site's own pages. The palette, the buttons, the verdict tags, the rule
   panels and the dialogs all come from report.css, the webapp's stylesheet, which is
   loaded first; this adds only what the report does not have: the page frame, the intro
   pictures and the evaluation form. */

/* The header stays in view, so the way back and the two references are always there.
   Slimmer than the report's, which carries a title and nothing else. */
header { position: sticky; top: 0; z-index: 10; padding: 0.85rem 0; }
.topbar { display: flex; align-items: center; gap: 0.9rem; }
.topbar .where { flex: 1; min-width: 0; }
header p.step { margin: 0 0 0.15rem; font-family: inherit; font-size: 0.74rem;
                font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
header h1 { font-size: 1.2rem; }
.top-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.5rem; }

/* A rule page is wider than the report: the form sits beside the rule. */
body.wide header .bar, body.wide main { max-width: 84rem; }

/* the same panel the report's summary uses */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
        padding: 1.1rem 1.3rem 1.2rem; margin: 0 0 1.4rem;
        box-shadow: 0 1px 2px rgba(59, 42, 26, 0.05); }
.card > h2 { margin: 0 0 0.6rem; font-size: 1.02rem; color: var(--primary); }
.card p { margin: 0.5rem 0; }
.card ul, .card ol { margin: 0.4rem 0; padding-left: 1.3rem; }
.card li { margin: 0.3rem 0; }
.instructions h3 { margin: 1.5rem 0 0.4rem; font-size: 0.98rem; color: var(--primary); }
.instructions h3:first-child { margin-top: 0.2rem; }
.instructions .spec { margin: 0.6rem 0; font-size: 0.8rem; }
.instructions pre.form { margin: 0.5rem 0; }
.instructions .legend li { display: block; }
.instructions figure.example { margin: 0.9rem 0 0; }
.instructions figure.example img { display: block; width: 100%; max-width: 46rem;
        border: 1px solid var(--line); border-radius: 8px; cursor: zoom-in; }
.instructions figure.example figcaption { margin-top: 0.45rem; font-size: 0.86rem;
        color: var(--muted); }
.instructions .legend .tag { margin-right: 0.5rem; }
/* the three kinds of word a rule marks, named in the colours the rule wears them in */
.c-measure { color: var(--input); }
.c-output { color: var(--accent); }
.c-constant { color: var(--const); }

.narrow { max-width: 36rem; margin: 3rem auto 0; }
/* The start page holds its panel in the middle of the screen, as UI_static's does: the
   page fills the height left under the header and main's own margins. */
#page-entry { display: flex; flex-direction: column; justify-content: center;
              min-height: calc(100vh - 11rem); margin-top: 0; }
.done { text-align: center; }
.mono { font-family: ui-monospace, "Cascadia Code", monospace; font-size: 0.8rem;
        color: var(--muted); }
.hint { color: var(--muted); font-size: 0.84rem; }
.req { color: var(--danger-text); }
.error { background: #FCEBEB; border-left: 3px solid var(--danger); border-radius: 6px;
         padding: 0.6rem 0.8rem; color: var(--danger-text); font-size: 0.88rem; }
.btn.wide-btn { display: block; width: 100%; margin-top: 0.8rem; }

/* A background text: paragraphs, and indented blocks kept as they are written. */
.text p { margin: 0 0 0.7rem; }
.text pre.form { margin: 0 0 0.9rem; white-space: pre; }

/* ---- intro pictures: one wide figure, or a grid of them ---- */
.pictures { display: grid;
            grid-template-columns: repeat(auto-fit, minmax(min(24rem, 100%), 1fr));
            gap: 1.1rem; margin-top: 0.8rem; }
.pictures figure { margin: 0; }
.pictures img { display: block; width: 100%; border: 1px solid var(--line);
                border-radius: 8px; background: var(--bg); cursor: zoom-in; }
.pictures figcaption { margin-top: 0.45rem; font-size: 0.86rem; color: var(--muted);
                       line-height: 1.45; }
.pictures figcaption b { color: var(--text); }

/* fit-content: report.css gives every dialog the page's width */
dialog.lightbox { width: fit-content; max-width: calc(100% - 2rem); max-height: calc(100vh - 2rem);
                  padding: 0; border: none; border-radius: 8px; background: var(--bg);
                  cursor: zoom-out; }
/* A set width enlarges a small picture; 'contain' keeps a tall one in proportion when the
   height runs out, rather than squeezing it to the box. */
dialog.lightbox img { display: block; width: min(60rem, calc(100vw - 4rem));
                      max-height: calc(100vh - 4rem); object-fit: contain; }

/* ---- rule page: the form beside the rule; below it on a narrow screen ---- */
.rule-layout { display: grid; grid-template-columns: 21rem minmax(0, 1fr); gap: 1.5rem;
               align-items: start; }
.eval-form { position: sticky; top: 5.6rem; margin: 0; }
.rule-main > .explain { margin-bottom: 0.8rem; }
/* the rule in plain words, read before the rule as written */
.rule-main > .card.words { margin-bottom: 0.9rem; }
.card.words p { margin: 0; font-size: 1.02rem; line-height: 1.6; }
.rule-main .group { margin-top: 0; }
@media (max-width: 62rem) {
  .rule-layout { grid-template-columns: minmax(0, 1fr); }
  .eval-form { position: static; order: 2; }
}

.field-label { display: block; margin: 0 0 0.5rem; padding: 0; font-weight: 600;
               font-size: 0.92rem; }
.eval-form fieldset { margin: 0 0 1.1rem; padding: 0; border: none; }
.choice { display: flex; align-items: center; gap: 0.6rem; margin: 0.4rem 0;
          padding: 0.55rem 0.8rem; background: #FFFFFF; border: 1px solid var(--line);
          border-radius: 8px; cursor: pointer; }
.choice:hover { border-color: var(--secondary); }
.choice input { accent-color: var(--primary); }
.choice:has(input:checked) { border-color: var(--primary);
                             box-shadow: inset 3px 0 0 var(--primary); }
.choice:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 1px; }

input[type="text"], textarea { display: block; width: 100%; font: inherit;
        font-size: 0.92rem; color: var(--text); background: #FFFFFF;
        border: 1px solid var(--line); border-radius: 8px; padding: 0.55rem 0.7rem; }
textarea { resize: vertical; }
input[type="text"]:focus-visible, textarea:focus-visible {
        outline: 3px solid var(--focus); outline-offset: 1px; }
textarea:disabled { background: #ECEFF6; color: var(--muted); cursor: not-allowed; }

@media (max-width: 40rem) {
  .topbar { flex-wrap: wrap; }
  .top-actions { width: 100%; justify-content: flex-start; }
}