/* Science Investigation Lab: the hands-on step parts (question cards and slots, prediction order, plan builder),
   the hub hero and trail, and the help switch. Scene drawing, motion, collect and the chart are science-lab-scenes.css. */

/* ── question: cards and slots ───────────────────────────────────────────── */
.slx-icon {
  width: 3.5rem;
  height: 3.5rem;
  flex: none;
}
.slx-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
  gap: var(--s-3);
  margin-bottom: var(--s-4);
}
.slx-card {
  display: grid;
  justify-items: center;
  gap: 0.3rem;
  min-height: 2.75rem;
  padding: var(--s-3);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  text-align: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition:
    transform var(--dur-1, 120ms) var(--ease-press, ease-out),
    border-color var(--dur-1, 120ms);
}
.slx-card:hover {
  transform: translateY(-2px);
  border-color: var(--room, var(--brand));
}
.slx-card[aria-pressed="true"] {
  border-color: var(--room, var(--brand));
  background: var(--room-soft);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--room, var(--brand)) 25%, transparent);
}
.slx-card .fine {
  overflow-wrap: anywhere;
}
.slx-slots {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-3);
}
.slx-slot {
  display: grid;
  gap: 0.2rem;
  min-height: 4.5rem;
  padding: var(--s-3);
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
  text-align: start;
  cursor: pointer;
}
.slx-slot.is-full {
  border-style: solid;
  border-color: var(--sage-900);
  background: var(--sage-200);
}
.slx-slot-k {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-2);
}
.slx-slot-v {
  font-weight: 700;
  overflow-wrap: anywhere;
}
.slx-skel {
  margin: var(--s-4) 0 0;
  padding: var(--s-3) var(--s-4);
  border-radius: var(--radius);
  background: var(--ivory);
  border: 1.5px solid var(--line);
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.6;
}
.slx-blank {
  display: inline-block;
  min-width: 3rem;
  padding: 0 0.3rem;
  border-bottom: 2px dashed var(--line-strong);
}
.slx-blank.is-filled {
  border-bottom: 2px solid var(--sage-900);
  border-radius: 6px 6px 0 0;
  background: var(--sage-200);
  color: var(--sage-900);
  font-weight: 700;
}

/* ── hypothesis: order cards ─────────────────────────────────────────────── */
.slx-order {
  display: grid;
  gap: var(--s-2);
  margin: 0 0 var(--s-2);
  padding: 0;
  list-style: none;
}
.slx-order-item {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  gap: var(--s-3);
  align-items: center;
  padding: var(--s-2) var(--s-3);
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
}
.slx-order-item .slx-icon {
  width: 2.75rem;
  height: 2.75rem;
}
.slx-rank {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--mi-800);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
}
.slx-order.is-result .slx-rank {
  background: var(--sage-900);
}
.slx-moves {
  display: inline-flex;
  gap: var(--s-1);
}
.slx-move {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1.5px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.slx-move .ico {
  transform: rotate(90deg);
}
.slx-move:disabled {
  opacity: 0.4;
  cursor: default;
}

/* ── plan: builder and live preview ──────────────────────────────────────── */
.slx-builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-4);
}
.slx-var-head {
  display: flex;
  gap: var(--s-3);
  align-items: center;
}
.slx-var-head .fine {
  margin: 0;
}
.slx-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--s-4);
}
.slx-var.is-change {
  border-color: var(--copper-900);
  background: color-mix(in srgb, var(--copper-200) 35%, transparent);
}
.slx-var.is-held {
  border-color: var(--sage-900);
  background: color-mix(in srgb, var(--sage-200) 45%, transparent);
}
.slx-trials input {
  max-width: 8rem;
  min-height: 2.75rem;
}
.slx-setup {
  margin: 0;
  padding: var(--s-3);
  border: 3px solid var(--mi-800);
  border-radius: var(--r-lg);
  background: var(--ivory);
  box-shadow: var(--shadow);
}
.slx-setup-head {
  margin: 0 0 var(--s-2);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}
.slx-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8.5rem), 1fr));
  gap: var(--s-2);
}
.slx-col {
  display: grid;
  align-content: start;
  gap: var(--s-1);
  padding: var(--s-2);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.slx-col-tag {
  margin: 0;
  font-weight: 700;
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}
.slx-tag-k {
  display: inline-block;
  margin-inline-end: 0.25rem;
  padding: 0 0.45rem;
  border-radius: 999px;
  background: var(--copper-900);
  color: #fff;
  font-size: 0.8rem;
}
.slx-cups {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.slx-cups .slx-unit {
  width: min(7.5rem, 100%);
  flex: 1 1 4.2rem;
}
.slx-kept {
  display: grid;
  gap: var(--s-1);
  margin: var(--s-3) 0 0;
  padding: 0;
  list-style: none;
}
.slx-kept li {
  display: flex;
  gap: var(--s-2);
  align-items: center;
  padding: 0.3rem 0.6rem;
  border-radius: 12px;
  background: var(--surface-2);
}
.slx-kept li.is-held {
  background: var(--sage-200);
  color: var(--sage-900);
}
.slx-mini {
  width: 2.25rem;
  height: 2.25rem;
  flex: none;
}
.slx-warn {
  margin: var(--s-3) 0 0;
  padding: var(--s-2) var(--s-3);
  border-radius: 12px;
  background: var(--hint-soft, #fbeedd);
  color: var(--hint);
  font-weight: 700;
}

/* ── hub ─────────────────────────────────────────────────────────────────── */
.sl-hub .sl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-4);
  align-items: center;
}
.sl-hero h1 {
  display: grid;
  gap: var(--s-2);
  margin: 0;
}
.sl-hero-kicker {
  font-family: "Atkinson Hyperlegible", system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-2);
}
.sl-hero-q {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 1.2rem + 2.2vw, 2.7rem);
  line-height: 1.15;
}
.sl-hero-lead {
  margin: var(--s-3) 0 var(--s-4);
  font-size: 1.15rem;
}
.sl-hero .row-actions {
  margin-bottom: var(--s-4);
}
.sl-finished {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 0;
  font-weight: 700;
}
.sl-trail {
  margin-top: var(--s-4);
}
.sl-hub-about {
  margin-top: var(--s-4);
}
.sl-path-ico {
  display: grid;
  place-items: center;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: var(--room-soft, var(--surface-2));
  color: var(--room-ink, var(--brand));
}
.sl-trail .sl-path-step a {
  min-height: 3.5rem;
}

/* ── help control in the header ──────────────────────────────────────────── */
.sl-helpctl {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-1) var(--s-2);
  align-items: center;
}
.sl-helpctl-k {
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
  font-weight: 700;
}
.sl-seg {
  display: inline-flex;
  padding: 3px;
  border: 1.5px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
}
.sl-seg-btn {
  min-width: 4.2rem;
  min-height: 2.75rem;
  padding: 0 0.9rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.sl-seg-btn[aria-pressed="true"] {
  background: var(--brand);
  color: #fff;
}
.sl-seg-btn:focus-visible {
  outline: 3px solid var(--mi-950);
  outline-offset: 2px;
}
.sl-helpctl-line {
  flex-basis: 100%;
}
.sl-head-side {
  display: grid;
  gap: var(--s-2);
  justify-items: start;
}
.sl-head-side .sl-mode {
  padding: var(--s-2) var(--s-3);
}


/* ── widths ──────────────────────────────────────────────────────────────── */
@media (min-width: 860px) {
  .sl-hub .sl-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}
@media (min-width: 980px) {
  .slx-builder {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
  .slx-builder-preview {
    position: sticky;
    top: 84px;
  }
}
@media (max-width: 560px) {
  .slx-slots,
  .slx-orders {
    grid-template-columns: minmax(0, 1fr);
  }
  .slx-spot {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 1rem;
  }
  .slx-order-item {
    grid-template-columns: auto auto minmax(0, 1fr);
  }
  .slx-moves {
    grid-column: 1 / -1;
    justify-self: end;
  }
  .sl-runs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .slx-skel {
    font-size: 1.15rem;
  }
}
body[data-lab-band="3-5"] .slx-card,
body[data-lab-band="3-5"] .slx-slot {
  font-size: 1.1rem;
}