/* =============================================================================
   ct-layout.css — Cover Test console: shell, header, three-column body,
   workflow steps, live coaching, drawers.
   Lives directly under the exam card (html-templates/exam/tab-exam.html) so
   the controls sit next to the eyes they move. Pupilla tokens only.
   ============================================================================= */

.ctc {
  --ct-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ct-r: 10px;
  container: ctc / inline-size;
  position: relative;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 1px 2px hsl(var(--shadow-color) / 0.06), 0 12px 32px -18px hsl(var(--shadow-color) / 0.35);
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  scroll-margin: 16px;
}
.ctc[hidden],
.ctc [hidden] { display: none !important; }
.ctc button { font-family: inherit; }
.ctc :focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.ctc kbd {
  display: inline-block;
  min-width: 16px;
  padding: 0 4px;
  border: 1px solid currentColor;
  border-radius: 4px;
  font-family: var(--ct-mono); font-size: 10px; font-weight: 600; line-height: 15px;
  text-align: center;
  opacity: 0.6;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.ctc-bar { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 18px; padding: 14px 18px; }
.ctc[data-open="true"] .ctc-bar { border-bottom: 1px solid var(--border-soft); }

.ctc-heading {
  display: flex; align-items: center; gap: 10px;
  margin-right: auto; padding: 4px 8px 4px 4px;
  border: 0; border-radius: 12px; background: none;
  color: var(--text); text-align: left; cursor: pointer;
}
.ctc-heading:hover { background: var(--surface-sunken); }
.ctc-icon { width: 30px; height: 30px; padding: 5px; flex: none; border-radius: 9px; background: var(--accent-tint); color: var(--accent); }
.ctc-heading-text { display: flex; flex-direction: column; min-width: 0; }
.ctc-title { font-size: 16px; font-weight: 700; letter-spacing: -0.01em; }
.ctc-case { font-size: 11.5px; color: var(--text-soft); }
.ctc-chevron { width: 18px; height: 18px; flex: none; color: var(--text-soft); transition: transform 200ms ease; }
.ctc[data-open="false"] .ctc-chevron { transform: rotate(-90deg); }

.ctc-conditions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
.ctc-cond { display: flex; align-items: center; gap: 8px; }
.ctc-cond-name { font-size: 11px; font-weight: 600; color: var(--text-soft); }
.ctc-cond .ct-seg-btn { padding: 5px 10px; }

/* Fusion meter — a teaching aid: a real examiner cannot see fusion. */
.ct-fusion {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 10px 4px 7px;
  border: 1px solid var(--border-soft); border-radius: 999px;
  background: var(--surface-sunken);
  font-size: 10.5px; font-weight: 600; color: var(--text-soft); white-space: nowrap;
}
.ct-fusion-track { width: 34px; height: 5px; overflow: hidden; border-radius: 999px; background: var(--border); }
.ct-fusion-fill { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--accent); transition: width 160ms linear, background-color 200ms ease; }
.ct-fusion[data-state="dissociated"] .ct-fusion-fill,
.ct-fusion[data-state="broken"] .ct-fusion-fill { background: var(--warn); }
.ct-fusion[data-state="manifest"] .ct-fusion-fill { background: var(--warn-strong); }
.ct-fusion[data-state="broken"] { border-color: transparent; background: var(--warn-tint); color: var(--warn-strong); }

/* ── Body: steps | main | what was seen ──────────────────────────────────── */
.ctc-body { display: grid; grid-template-columns: 208px minmax(0, 1fr) 280px; }
.ctc-steps { display: flex; flex-direction: column; gap: 12px; padding: 16px 12px 16px 14px; border-right: 1px solid var(--border-soft); }
.ctc-main { display: flex; flex-direction: column; gap: 12px; min-width: 0; padding: 16px 18px 18px; }
.ctc-side {
  display: flex; flex-direction: column; gap: 10px; min-width: 0;
  padding: 16px;
  border-left: 1px solid var(--border-soft);
  border-radius: 0 0 20px 0;
  background: var(--bg);
}

@container ctc (max-width: 920px) {
  .ctc-body { grid-template-columns: 190px minmax(0, 1fr); }
  .ctc-side { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--border-soft); border-radius: 0 0 20px 20px; }
}
@container ctc (max-width: 640px) {
  .ctc-bar { padding: 12px; }
  .ctc-body { grid-template-columns: minmax(0, 1fr); }
  .ctc-steps { padding: 10px 12px; border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .ctc-step-list { flex-direction: row; overflow-x: auto; padding-bottom: 2px; scroll-snap-type: x proximity; }
  .ctc-step { min-width: 150px; scroll-snap-align: start; }
  .ctc-alt-test { margin-top: 0; }
  .ctc-main { padding: 14px 12px; }
  .ctc-side { padding: 14px 12px; }
}

/* ── Workflow steps ──────────────────────────────────────────────────────── */
.ctc-step-list { display: flex; flex-direction: column; gap: 4px; margin: 0; padding: 0; list-style: none; }
.ctc-step {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 8px 10px;
  border: 1px solid transparent; border-radius: 12px; background: none;
  color: var(--text); text-align: left; cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease;
}
.ctc-step:hover { background: var(--surface-sunken); }
.ctc-step[aria-current="step"] { border-color: rgba(31, 75, 76, 0.22); background: var(--accent-tint); }
.ctc-step-num {
  display: grid; place-items: center;
  width: 26px; height: 26px; flex: none;
  border: 1.5px solid var(--border); border-radius: 50%;
  background: var(--surface);
  font-family: var(--ct-mono); font-size: 12px; font-weight: 600; color: var(--text-soft);
}
.ctc-step[aria-current="step"] .ctc-step-num { border-color: var(--accent); background: var(--accent); color: #fff; }
.ctc-step[data-done="true"] .ctc-step-num {
  border-color: var(--accent); color: transparent;
  background: var(--accent-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M3 6.2 5 8.2 9 3.8' fill='none' stroke='%231F4B4C' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.ctc-step[data-done="true"][aria-current="step"] .ctc-step-num {
  background-color: var(--accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M3 6.2 5 8.2 9 3.8' fill='none' stroke='white' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.ctc-step-text { display: flex; flex-direction: column; min-width: 0; }
.ctc-step-title { font-size: 12.5px; font-weight: 650; }
.ctc-step-hint { font-size: 11px; color: var(--text-soft); }

.ctc-about-link {
  display: flex; align-items: center; gap: 8px;
  width: 100%; padding: 8px 10px;
  border: 1px solid var(--border-soft); border-radius: 12px;
  background: var(--surface);
  font-size: 12px; font-weight: 600; color: var(--accent-strong); text-align: left;
  cursor: pointer;
}
.ctc-about-link svg { width: 18px; height: 18px; flex: none; }
.ctc-about-link:hover,
.ctc-about-link[aria-current="step"] { border-color: var(--accent); background: var(--accent-tint); }
@container ctc (max-width: 640px) { .ctc-about-link { width: auto; } }
.ctc-alt-test {
  margin-top: auto; padding: 8px 10px;
  border: 1px dashed var(--border); border-radius: 10px; background: none;
  font-size: 11px; color: var(--text-soft); text-align: left; cursor: pointer;
}
.ctc-alt-test strong { display: block; font-size: 12px; color: var(--accent-strong); }
.ctc-alt-test:hover,
.ctc-alt-test[aria-current="step"] { border-style: solid; border-color: var(--accent); background: var(--accent-tint); }

/* ── Live coaching ───────────────────────────────────────────────────────── */
.ctc-coach {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 13px 14px;
  border-radius: 14px;
  background: var(--surface-sunken);
  color: var(--text);
}
.ctc-coach-dot { width: 10px; height: 10px; flex: none; margin-top: 6px; border-radius: 50%; background: var(--text-soft); }
.ctc-coach-body { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.ctc-coach-body strong { font-size: 15.5px; line-height: 1.3; letter-spacing: -0.005em; }
.ctc-coach-body span { font-size: 12.5px; opacity: 0.92; }
.ctc-coach-why {
  margin-top: 4px; padding-top: 6px;
  border-top: 1px solid currentColor;
  border-top-color: rgba(0, 0, 0, 0.08);
  font-size: 12px; font-style: normal; line-height: 1.45; opacity: 0.85;
}
.ctc-coach-why::before { content: "Why · "; font-weight: 700; }

/* Explain off: keep the controls, drop the teaching layer. */
.ctc[data-explain="off"] .ctc-keys,
.ctc[data-explain="off"] .ctc-how,
.ctc[data-explain="off"] .ctc-coach-why { display: none !important; }
.ctc-coach[data-tone="watch"] { background: var(--note-tint); color: var(--note-strong); }
.ctc-coach[data-tone="watch"] .ctc-coach-dot { background: var(--note); animation: ct-pulse 1.1s ease-in-out infinite; }
.ctc-coach[data-tone="good"] { background: var(--accent-tint); color: var(--accent-strong); }
.ctc-coach[data-tone="good"] .ctc-coach-dot { background: var(--accent); }
.ctc-coach[data-tone="warn"] { background: var(--warn-tint); color: var(--warn-strong); }
.ctc-coach[data-tone="warn"] .ctc-coach-dot { background: var(--warn); }
@keyframes ct-pulse { 50% { opacity: 0.35; transform: scale(0.75); } }

/* ── Shared text bits ────────────────────────────────────────────────────── */
.ct-label { margin: 0; font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-soft); }
.ct-ref { font-family: var(--ct-mono); font-size: 9.5px; font-weight: 500; letter-spacing: 0; text-transform: none; color: var(--text-soft); }
.ct-field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.ct-field-name { font-size: 11px; font-weight: 600; color: var(--text-soft); }
.ct-warn { margin: 0; padding: 7px 10px; border-radius: 8px; background: var(--warn-tint); font-size: 11.5px; line-height: 1.45; color: var(--warn-strong); }
.ct-link { align-self: flex-start; padding: 2px 6px; border: 0; border-radius: 6px; background: none; font-size: 11.5px; font-weight: 600; color: var(--accent); cursor: pointer; }
.ct-link:hover { background: var(--accent-tint); }
.ctc-keys { margin: 0; font-size: 11px; color: var(--text-soft); }

/* ── Drawers ─────────────────────────────────────────────────────────────── */
.ctc-drawer { border: 1px solid var(--border-soft); border-radius: 12px; background: var(--surface); }
.ctc-drawer > summary {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px;
  font-size: 12px; font-weight: 600; color: var(--text-soft);
  list-style: none; cursor: pointer;
}
.ctc-drawer > summary::-webkit-details-marker { display: none; }
.ctc-drawer > summary::after {
  content: ""; width: 7px; height: 7px; margin-right: 4px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg); transition: transform 160ms ease;
}
.ctc-drawer[open] > summary::after { transform: rotate(-135deg); }
.ctc-drawer-body { display: flex; flex-direction: column; gap: 10px; padding: 0 12px 12px; }

.ct-dissoc {
  align-self: flex-start; padding: 2px 8px; border-radius: 999px;
  background: var(--accent-tint);
  font-size: 10px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent-strong);
}
.ct-dissoc[data-level="maximal"] { background: var(--warn-tint); color: var(--warn-strong); }
.ct-dissoc[data-level="none"] { background: var(--note-tint); color: var(--note-strong); }
.ct-method-measures { margin: 0; font-size: 13px; font-weight: 650; color: var(--accent-strong); }
.ct-method-watch { margin: 0; font-size: 12px; color: var(--text-soft); }
.ct-steps { display: flex; flex-direction: column; gap: 3px; margin: 0; padding-left: 18px; font-size: 12px; }
.ct-steps li::marker { color: var(--accent); font-weight: 700; }
.ct-method-note { margin: 0; font-size: 11.5px; font-style: italic; color: var(--text-soft); }

@media (prefers-reduced-motion: reduce) {
  .ctc *, .ct-prism-bar, .ct-watch-cue { transition: none !important; animation: none !important; }
}