/* Exam console layout. Colours come from the Phase tokens. No hex. */
.ph-skip {
  position: absolute;
  left: var(--ph-space-3);
  top: var(--ph-space-3);
  padding: var(--ph-space-2) var(--ph-space-3);
  background: var(--ph-bg-surface);
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-radius-sm);
  transform: translateY(-150%);
}
.ph-skip:focus { transform: none; z-index: 5; }
.ph-main { padding: var(--ph-space-6); width: 100%; max-width: none; margin-inline: auto; }
.ph-brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.ph-brand-name strong { font-size: var(--ph-text-sm); font-weight: var(--ph-weight-medium); color: var(--ph-text); }
.ph-brand-name small { font-size: var(--ph-text-2xs); color: var(--ph-text-3); }
.ph-pagehead { display: flex; justify-content: space-between; gap: var(--ph-space-4); align-items: flex-end; margin-bottom: var(--ph-space-5); }
.ph-exam-actions { display: flex; justify-content: flex-end; }
.ph-page-btn[aria-disabled="true"] { color: var(--ph-text-3); pointer-events: none; }
.ph-pagehead h1 { margin: 0; font-size: var(--ph-text-2xl); font-weight: var(--ph-weight-medium); letter-spacing: -0.02em; }
.ph-pagehead p { margin: var(--ph-space-1) 0 0; color: var(--ph-text-2); max-width: 40rem; }
.ph-stack { display: flex; flex-direction: column; gap: var(--ph-space-4); }
.ph-split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--ph-space-4); }
.ph-answer {
  margin: 0;
  white-space: pre-wrap;
  font-family: var(--ph-font-sans);
  font-size: var(--ph-text-sm);
  line-height: 1.5;
  color: var(--ph-text);
}
.ph-topics { display: block; margin-top: 0.25rem; max-width: 36rem; font-size: var(--ph-text-xs); font-weight: var(--ph-weight-regular); color: var(--ph-text-3); line-height: 1.45; }
.ph-filterbar label { display: flex; flex-direction: column; gap: 0.25rem; font-size: var(--ph-text-xs); font-weight: var(--ph-weight-medium); color: var(--ph-text-3); }
#question-filters.ph-filterbar {
  gap: 2.5rem;
  padding: var(--ph-space-4) var(--ph-space-5);
  border: 0;
  background: transparent;
  justify-content: flex-start;
}
#question-filters .ph-select {
  border: 1px solid var(--ph-grey-200);
  background-color: var(--ph-bg-surface);
  min-width: 13rem;
  box-shadow: none;
}
#question-filters .ph-select:hover { border-color: var(--ph-grey-300); background-color: var(--ph-bg-surface); }
.ph-report { position: relative; }
.ph-report__edit { position: absolute; top: var(--ph-space-4); right: var(--ph-space-4); z-index: 1; }
.ph-report {
  display: grid;
  grid-template-columns: minmax(12rem, 1.2fr) minmax(16rem, 1fr);
  gap: var(--ph-space-6);
  align-items: center;
  background: var(--ph-bg-surface);
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-radius-md);
  padding: var(--ph-space-5) var(--ph-space-6);
  box-shadow: var(--ph-shadow-1);
}
.ph-report__pct {
  margin: 0;
  font-size: var(--ph-text-3xl);
  font-weight: var(--ph-weight-medium);
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--ph-text);
}
.ph-report__when {
  margin: var(--ph-space-2) 0 0;
  font-size: var(--ph-text-xs);
  color: var(--ph-text-3);
}
.ph-report__meta {
  margin: var(--ph-space-1) 0 0;
  font-size: var(--ph-text-xs);
  color: var(--ph-text-2);
}
.ph-report__marks { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--ph-space-3); margin-top: 2.25rem; }
.ph-mark {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: var(--ph-space-3) var(--ph-space-4);
  border-radius: var(--ph-radius-sm);
  border: 1px solid transparent;
}
.ph-mark__n {
  font-size: var(--ph-text-2xl);
  font-weight: var(--ph-weight-medium);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.ph-mark span:last-child { font-size: var(--ph-text-xs); font-weight: var(--ph-weight-medium); }
.ph-mark--pass { background: var(--ph-success-bg); color: var(--ph-success-fg); border-color: var(--ph-success-bd); }
.ph-mark--fail { background: var(--ph-danger-bg); color: var(--ph-danger-fg); border-color: var(--ph-danger-bd); }
.ph-mark--split { background: var(--ph-warn-bg); color: var(--ph-warn-fg); border-color: var(--ph-warn-bd); }
.ph-bits { display: inline-flex; gap: 0.2rem; font-family: var(--ph-font-mono); font-variant-numeric: tabular-nums; }
.ph-bit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35rem;
  height: 1.35rem;
  border-radius: var(--ph-radius-sm);
  font-size: var(--ph-text-sm);
  font-weight: var(--ph-weight-medium);
}
.ph-bit--yes { background: var(--ph-success-bg); color: var(--ph-success-fg); }
.ph-bit--no { background: var(--ph-danger-bg); color: var(--ph-danger-fg); }
.ph-bits--lg .ph-bit { min-width: 2rem; height: 2rem; font-size: var(--ph-text-lg); }
.ph-qscore { display: flex; align-items: center; gap: var(--ph-space-3); }
.ph-votes { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--ph-space-3); }
.ph-vote {
  display: flex;
  flex-direction: column;
  gap: var(--ph-space-3);
  align-items: flex-start;
  padding: var(--ph-space-4) var(--ph-space-5);
}
.ph-vote strong { font-size: var(--ph-text-xl); font-variant-numeric: tabular-nums; }
.ph-vote .ph-bit {
  min-width: 2.5rem;
  min-height: 2.5rem;
  height: auto;
  padding: var(--ph-space-2) var(--ph-space-3);
}
.ph-num { white-space: nowrap; font-variant-numeric: tabular-nums; }
.ph-form { display: flex; flex-direction: column; gap: var(--ph-space-4); }
.ph-form form { display: flex; flex-direction: column; gap: var(--ph-space-2); align-items: flex-start; }
.ph-form label { display: flex; flex-direction: column; gap: 0.25rem; width: min(36rem, 100%); font-size: var(--ph-text-xs); color: var(--ph-text-2); }
.ph-form textarea.ph-input { min-height: 6rem; }
.ph-add { display: grid; grid-template-columns: 1fr 1fr; gap: var(--ph-space-4); }
.ph-add .ph-span { grid-column: 1 / -1; }
.ph-add label { width: 100%; }
.ph-add textarea.ph-input { min-height: 7rem; width: 100%; }
.ph-addpage .ph-split { align-items: stretch; }
.ph-addpage .ph-split > .ph-card { display: flex; flex-direction: column; min-height: 100%; }
.ph-addpage .ph-split > .ph-card > .ph-card__body { flex: 1; display: flex; flex-direction: column; }
.ph-addpage #bulk-questions { flex: 1; display: flex; flex-direction: column; }
.ph-addpage #bulk-questions label { flex: 1; }
.ph-addpage #bulk-questions textarea.ph-input {
  flex: 1;
  min-height: 22rem;
  height: auto;
  font-family: var(--ph-font-mono);
  font-size: var(--ph-text-xs);
  line-height: 1.45;
  white-space: pre;
}
.ph-addpage [hidden] { display: none !important; }
.ph-exam-form { display: flex; flex-direction: column; align-items: flex-start; gap: var(--ph-space-4); max-width: 36rem; padding-top: var(--ph-space-3); }
.ph-exam-form > div { width: 100%; }
.ph-addpage #exam-existing > label,
.ph-exam-fields label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  width: 100%;
  font-size: var(--ph-text-xs);
  font-weight: var(--ph-weight-medium);
  color: var(--ph-text-3);
}
.ph-exam-fields { display: grid; grid-template-columns: minmax(0, 1fr) 10rem; gap: var(--ph-space-4); }
.ph-addpage #exam-new { display: flex; flex-direction: column; align-items: flex-start; gap: var(--ph-space-4); }
.ph-addpage #exam-new[hidden] { display: none !important; }
.ph-exam-choice .ph-seg { position: relative; }
.ph-exam-choice .ph-seg input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.ph-exam-choice .ph-seg:has(:checked) {
  background: var(--ph-bg-surface);
  color: var(--ph-text);
  box-shadow: 0 1px 2px rgb(31 42 60 / 0.1), 0 0 0 1px var(--ph-grey-200);
}
.ph-exam-choice .ph-seg:has(:focus-visible) { outline: 2px solid var(--ph-accent-600); outline-offset: 2px; }
@media (max-width: 560px) { .ph-exam-fields { grid-template-columns: 1fr; } }
.ph-addpage .ph-card {
  box-shadow: none;
  border-color: var(--ph-grey-150);
  background: var(--ph-bg-surface);
}
.ph-addpage .ph-add label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: var(--ph-text-xs);
  font-weight: var(--ph-weight-medium);
  color: var(--ph-text-3);
}
.ph-addpage .ph-input {
  background-color: var(--ph-grey-50);
  border-color: var(--ph-grey-200);
}
.ph-addpage .ph-input:hover { border-color: var(--ph-grey-300); background-color: var(--ph-grey-25); }
.ph-addpage textarea.ph-input { min-height: 5.5rem; }
@media (max-width: 720px) { .ph-add { grid-template-columns: 1fr; } .ph-add .ph-span { grid-column: auto; } }
.ph-pair {
  flex: 0 0 0.45rem;
  width: 0.45rem;
  height: calc(var(--h) * 1%);
  min-height: 0;
  align-self: flex-end;
  border-radius: 2px 2px 0 0;
}
.ph-pair--empty { height: 0; background: transparent; }
.ph-pair--reg { background: var(--ph-chart-red); }
.ph-pair--rec { background: var(--ph-chart-green); }
.ph-pair--flat { background: var(--ph-chart-blue); }
.ph-bars { height: 14rem; }
.ph-bars__col { gap: 6px; }
.ph-bars-axis li { overflow: visible; }
.ph-yaxis-title { margin: 0 0 0.9rem; font-size: var(--ph-text-xs); color: var(--ph-text-2); }
.ph-plot { display: grid; grid-template-columns: 1.75rem 1fr; column-gap: 0.45rem; align-items: stretch; }
.ph-yaxis { position: relative; height: 14rem; }
.ph-yaxis span {
  position: absolute;
  right: 0;
  transform: translateY(-50%);
  font-size: var(--ph-text-xs);
  font-variant-numeric: tabular-nums;
  color: var(--ph-text);
  line-height: 1;
}
.ph-countplot { position: relative; height: 14rem; }
.ph-gridline { position: absolute; left: 0; right: 0; border-top: 1px solid var(--ph-border); pointer-events: none; }
.ph-bars.ph-bars--count { height: 14rem; padding: 0; background: none; position: relative; z-index: 1; gap: 0.35rem; }
.ph-bars--count .ph-pair { width: 46%; flex-basis: 46%; }
.ph-areachart { height: 18rem; }
.ph-areachart .ph-area { fill: var(--ph-chart-red); opacity: 0.16; }
.ph-areachart .ph-line { stroke: var(--ph-chart-red); }
.ph-areachart .ph-dotpt { stroke: var(--ph-chart-red); }
.ph-bars-axis--plot { margin-left: 2.2rem; }
.ph-tip { position: relative; height: 100%; cursor: default; outline: none; }
.ph-tip__n {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: calc(var(--h) * 1% + 0.45rem);
  transform: translateX(-50%);
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--ph-border);
  border-radius: 4px;
  background: var(--ph-bg-surface);
  color: var(--ph-text);
  box-shadow: var(--ph-shadow-2);
  font-size: var(--ph-text-xs);
  font-weight: var(--ph-weight-medium);
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
}
.ph-tip:hover .ph-tip__n,
.ph-tip:focus-visible .ph-tip__n { opacity: 1; }
.ph-rowlink { color: inherit; text-decoration: none; }
.ph-rowlink:hover { color: var(--ph-link); }
@media (max-width: 880px) {
  .ph-split, .ph-votes, .ph-report, .ph-report__marks { grid-template-columns: 1fr; }
  .ph-main { padding: var(--ph-space-4); }
}