/* Overview lesson: lifecycle stepper and test-day timeline */

/* ---------- Who is involved ---------- */
.roles {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0;
  border: 1px solid var(--rule); border-radius: var(--radius); background: var(--panel);
  margin: 1.5rem 0 2rem;
}
.roles > div { padding: 1rem 1.2rem; border-bottom: 1px solid var(--rule); }
.roles > div:nth-child(odd) { border-right: 1px solid var(--rule); }
.roles > div:nth-last-child(-n + 2) { border-bottom: 0; }
.roles dt { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; line-height: 1.2; margin-bottom: 0.2rem; }
.roles dd { margin: 0; font-size: 0.94rem; color: var(--ink-2); line-height: 1.5; }
@media (max-width: 640px) {
  .roles { grid-template-columns: minmax(0, 1fr); }
  .roles > div:nth-child(odd) { border-right: 0; }
  .roles > div:nth-last-child(2) { border-bottom: 1px solid var(--rule); }
}

/* ---------- Lifecycle stepper ---------- */
.life { padding: 1.4rem 1.25rem 1.2rem; }
.life-track {
  position: relative; display: grid; grid-template-columns: repeat(9, minmax(0, 1fr));
  margin: 0 0 1.4rem;
}
.life-line {
  position: absolute; left: calc(100% / 18); right: calc(100% / 18); top: calc(1.075rem - 1.5px);
  height: 3px; background: var(--rule); border-radius: 3px;
}
.life-fill {
  display: block; height: 100%; width: 0; background: var(--accent); border-radius: 3px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.life-step {
  position: relative; z-index: 1; display: grid; justify-items: center; align-content: start; gap: 0.45rem;
  background: none; border: 0; padding: 0 0.15rem; cursor: pointer; font: inherit; color: var(--ink-2);
}
.life-step:focus-visible { outline: none; }
.life-step:focus-visible .life-dot { outline: 3px solid var(--focus); outline-offset: 2px; }
.life-dot {
  width: 2.15rem; height: 2.15rem; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; line-height: 1;
  background: var(--panel); border: 2px solid var(--rule-strong); color: var(--ink-2);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s, transform 0.3s;
}
.life-step:hover .life-dot { border-color: var(--accent); }
.life-step.is-past .life-dot { border-color: var(--accent); color: var(--accent); }
.life-step[aria-selected="true"] .life-dot {
  background: var(--accent); border-color: var(--accent); color: var(--paper); transform: scale(1.12);
}
.life-name { font-size: 0.8rem; line-height: 1.25; text-align: center; }
.life-step[aria-selected="true"] .life-name { color: var(--ink); font-weight: 650; }

.life-panel {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 1.25rem 2.25rem;
  padding: 1.25rem 1.35rem; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--paper);
}
.life-panel:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.life-panel.is-entering { animation: life-in 0.35s ease; }
@keyframes life-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.life-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.35rem 0.85rem; margin-bottom: 0.6rem; }
.life-head h3 { margin: 0; font-size: 1.8rem; }
.life-body p { font-size: 0.98rem; }
.life-body p:last-child { margin-bottom: 0; }
.life-lists { display: grid; gap: 1.1rem; align-content: start; }
.life-lists h4 {
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 650; color: var(--ink-2);
  margin: 0 0 0.4rem; line-height: 1.3;
}
.life-lists ul { margin: 0; font-size: 0.94rem; line-height: 1.45; }
.life-checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.4rem; }
.life-checks li { margin: 0; }
.life-checks label { display: flex; gap: 0.55rem; align-items: flex-start; cursor: pointer; font-size: 0.94rem; line-height: 1.4; }
.life-checks input { accent-color: var(--gas); width: 1.05rem; height: 1.05rem; margin: 0.12rem 0 0; flex: none; cursor: pointer; }
.life-checks input:checked + span { color: var(--ink-2); text-decoration: line-through; text-decoration-color: var(--ink-3); }
.life-nav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 1rem; }
.life-count { font-size: 0.88rem; color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
@media (max-width: 760px) {
  .life { padding: 1.1rem 0.75rem 0.9rem; }
  .life-panel { grid-template-columns: minmax(0, 1fr); padding: 1rem; }
  .life-nav .btn { padding-left: 0.65rem; padding-right: 0.65rem; }
  .life-name { display: none; }
  .life-dot { width: 1.9rem; height: 1.9rem; font-size: 1rem; }
  .life-line { top: calc(0.95rem - 1.5px); }
}

/* ---------- Test-day timeline ---------- */
.day-clock-row { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1.5rem; }
.day-clock { font-family: var(--font-display); font-size: 2.3rem; font-weight: 600; line-height: 1; font-variant-numeric: tabular-nums; }
.day-phase { font-size: 0.92rem; color: var(--ink-2); }
.day-now { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem 1.75rem; }
.day-lane { border-top: 3px solid var(--rule-strong); padding-top: 0.5rem; transition: border-color 0.25s; }
.day-lane-name { font-size: 0.8rem; color: var(--ink-2); }
.day-task { font-family: var(--font-display); font-weight: 600; font-size: 1.35rem; line-height: 1.15; margin: 0.1rem 0 0.3rem; }
.day-detail { font-size: 0.9rem; color: var(--ink-2); line-height: 1.5; margin: 0; }
.day-legend { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; font-size: 0.82rem; color: var(--ink-2); }
.day-legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.day-legend i { display: inline-block; width: 0.85rem; height: 0.85rem; border-radius: 3px; }
#day-svg { touch-action: none; }
.day-bar rect { transition: opacity 0.2s; }
@media (max-width: 760px) {
  .day-now { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Method dependency chain: badges show method numbers ---------- */
.chain > li::before { content: attr(data-badge); font-size: 1rem; }
.nowrap-first td:first-child, .nowrap-first th:first-child { white-space: nowrap; }