.pr-topic .gt-nav {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.pr-experiment {
  display: grid;
  gap: 18px;
}

.pr-exp-workbench {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(148, 163, 184, 0.24);
}

.pr-exp-story {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 16px;
  background: linear-gradient(145deg, #ffffff, #eef6ff);
  box-shadow: 0 16px 34px rgba(30, 64, 175, 0.08);
}

.pr-exp-story > span {
  width: fit-content;
  padding: 5px 10px;
  border-radius: 999px;
  color: #1d4ed8;
  background: rgba(37, 99, 235, 0.12);
  font-size: 0.78rem;
  font-weight: 950;
}

.pr-exp-story > strong {
  color: #102033;
  font-size: 1.08rem;
}

.pr-exp-story p {
  margin: 0;
  color: #536171;
  line-height: 1.65;
}

.pr-exp-board,
.pr-factor-visual,
.pr-sieve-visual,
.pr-case-visual {
  min-height: 220px;
  border: 1px solid rgba(190, 202, 222, 0.82);
  border-radius: 16px;
  padding: 16px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.86)),
    repeating-linear-gradient(0deg, rgba(76, 131, 240, 0.06) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(76, 131, 240, 0.06) 0 1px, transparent 1px 28px);
}

.pr-exp-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.32fr);
  gap: 14px;
}

.pr-exp-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.pr-exp-grid,
.pr-number-board {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 6px;
  align-content: start;
}

.pr-number-board.is-compact {
  grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
  gap: 4px;
}

.pr-exp-grid button,
.pr-number-board i {
  display: grid;
  place-items: center;
  min-height: 34px;
  border: 1px solid rgba(148, 163, 184, 0.38);
  border-radius: 9px;
  color: #334155;
  background: #fff;
  font-style: normal;
  font-weight: 900;
}

.pr-exp-grid button {
  cursor: pointer;
}

.pr-exp-grid .is-base,
.pr-number-board .is-base {
  color: #fff;
  border-color: rgba(37, 99, 235, 0.72);
  background: #2563eb;
}

.pr-exp-grid .is-crossed,
.pr-number-board .is-crossed {
  color: #7f1d1d;
  border-color: rgba(239, 68, 68, 0.34);
  background:
    linear-gradient(135deg, transparent 44%, rgba(220, 38, 38, 0.7) 46%, rgba(220, 38, 38, 0.7) 54%, transparent 56%),
    #fee2e2;
}

.pr-exp-grid .is-prime,
.pr-number-board .is-prime {
  color: #064e3b;
  border-color: rgba(16, 185, 129, 0.48);
  background: #d1fae5;
}

.pr-exp-grid .is-watch,
.pr-number-board .is-watch {
  outline: 3px solid rgba(245, 158, 11, 0.42);
  outline-offset: 1px;
}

.pr-exp-watch-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid rgba(245, 158, 11, 0.32);
  border-radius: 16px;
  background: #fffbeb;
}

.pr-exp-watch-card strong {
  color: #92400e;
  font-size: 2.4rem;
  line-height: 1;
}

.pr-exp-watch-card span {
  width: fit-content;
  padding: 5px 10px;
  border-radius: 999px;
  color: #fff;
  background: #92400e;
  font-weight: 950;
}

.pr-exp-watch-card div,
.pr-factor-list,
.pr-lock-scene div,
.pr-card-scene div,
.pr-crypto-scene div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.pr-exp-watch-card i,
.pr-factor-list i,
.pr-lock-scene i,
.pr-card-scene i,
.pr-crypto-scene i,
.pr-fraction-scene i {
  display: inline-grid;
  place-items: center;
  min-width: 30px;
  min-height: 28px;
  border-radius: 8px;
  color: #1e3a8a;
  background: #dbeafe;
  font-style: normal;
  font-weight: 950;
}

.pr-factor-list {
  margin-top: 12px;
}

.pr-factor-list strong {
  color: #475569;
}

.pr-factor-list .is-on,
.pr-lock-scene .is-on,
.pr-card-scene .is-on {
  color: #fff;
  background: #0f766e;
}

.pr-factor-list > b {
  padding: 5px 10px;
  border-radius: 999px;
  color: #7c2d12;
  background: #ffedd5;
}

.pr-trial-scene {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 2px solid rgba(148, 163, 184, 0.28);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
}

.pr-trial-scene.is-clean {
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(236, 253, 245, 0.92);
}

.pr-trial-scene.has-rest {
  border-color: rgba(245, 158, 11, 0.5);
  background: rgba(255, 251, 235, 0.95);
}

.pr-trial-scene section {
  display: grid;
  gap: 5px;
}

.pr-trial-scene i,
.pr-candy,
.pr-person,
.pr-star,
.pr-flag-person {
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: #60a5fa;
  box-shadow: inset 0 -3px 0 rgba(15, 23, 42, 0.12);
}

.pr-candy {
  border-radius: 999px 999px 6px 6px;
  background: #f97316;
}

.pr-person,
.pr-flag-person {
  width: 14px;
  border-radius: 999px 999px 6px 6px;
  background: #10b981;
}

.pr-star {
  clip-path: polygon(50% 0, 62% 34%, 98% 35%, 69% 56%, 79% 91%, 50% 70%, 21% 91%, 31% 56%, 2% 35%, 38% 34%);
  border-radius: 0;
  background: #f59e0b;
}

.pr-case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pr-case {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(190, 202, 222, 0.78);
  border-radius: 16px;
  background: #fff;
}

.pr-case-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 10px;
  align-items: start;
}

.pr-case-head span {
  grid-column: 1 / -1;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  color: #1d4ed8;
  background: rgba(37, 99, 235, 0.11);
  font-size: 0.78rem;
  font-weight: 950;
}

.pr-case-head strong {
  color: #111827;
  font-size: 1.05rem;
}

.pr-case-head em {
  padding: 5px 10px;
  border-radius: 999px;
  color: #fff;
  background: #172033;
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 950;
  white-space: nowrap;
}

.pr-case-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.pr-case-controls label {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 10px;
  border: 1px solid rgba(190, 202, 222, 0.78);
  border-radius: 12px;
  color: #475569;
  font-size: 0.82rem;
  font-weight: 900;
  background: #f8fafc;
}

.pr-case-controls output {
  color: #0f172a;
  font-size: 1rem;
}

.pr-case-visual {
  min-height: 190px;
  overflow: hidden;
}

.pr-case-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.pr-case-metrics span {
  display: grid;
  gap: 4px;
  padding: 9px 10px;
  border-radius: 12px;
  color: #64748b;
  background: #f1f5f9;
  font-size: 0.78rem;
  font-weight: 900;
}

.pr-case-metrics b {
  color: #111827;
  font-size: 0.92rem;
}

.pr-case-result {
  min-height: 62px;
  padding: 12px;
  border-radius: 12px;
  color: #334155;
  font-weight: 850;
  line-height: 1.58;
  background: #f8fafc;
}

.pr-candy-tray,
.pr-tile-scene,
.pr-sieve-case,
.pr-team-scene,
.pr-pack-scene,
.pr-lock-scene,
.pr-gear-scene,
.pr-parade-scene,
.pr-fraction-scene,
.pr-crypto-scene,
.pr-tree-scene,
.pr-card-scene {
  display: grid;
  gap: 10px;
}

.pr-candy-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 10px;
  border-radius: 12px;
  background: #fff7ed;
}

.pr-team-scene section,
.pr-pack-scene section,
.pr-parade-scene section {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
}

.pr-team-scene b,
.pr-pack-scene b,
.pr-parade-scene b {
  margin-right: 4px;
  color: #334155;
}

.pr-team-scene .is-rest,
.pr-pack-scene .is-rest {
  background: #fffbeb;
}

.pr-lock-scene {
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: center;
}

.pr-lock {
  display: grid;
  place-items: center;
  gap: 6px;
  aspect-ratio: 1;
  border: 8px solid #64748b;
  border-radius: 20px 20px 28px 28px;
  background: linear-gradient(180deg, #f8fafc, #cbd5e1);
}

.pr-lock b {
  color: #0f172a;
  font-size: 2rem;
}

.pr-lock span {
  color: #475569;
  font-size: 0.68rem;
  font-weight: 950;
  text-transform: uppercase;
}

.pr-tile-scene > span,
.pr-gear-scene span,
.pr-tree-probe {
  padding: 9px 10px;
  border-radius: 12px;
  color: #475569;
  background: rgba(241, 245, 249, 0.9);
  font-weight: 900;
}

.pr-gear-scene {
  grid-template-columns: 128px minmax(0, 1fr);
  align-items: center;
}

.pr-gear-wheel {
  position: relative;
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border-radius: 999px;
  background:
    radial-gradient(circle, #f8fafc 0 38%, transparent 39%),
    conic-gradient(from 0deg, #38bdf8, #f59e0b, #22c55e, #38bdf8);
  box-shadow: inset 0 0 0 10px rgba(15, 23, 42, 0.1);
}

.pr-gear-wheel i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 15px;
  margin-left: -3px;
  margin-top: -62px;
  border-radius: 4px;
  background: #334155;
  transform: rotate(calc(360deg / var(--total) * var(--i))) translateY(-4px);
  transform-origin: 3px 62px;
}

.pr-gear-wheel b {
  position: relative;
  z-index: 1;
  color: #0f172a;
  font-size: 1.7rem;
}

.pr-parade-scene {
  padding: 10px;
  border-radius: 14px;
  background: linear-gradient(180deg, #eef2ff, #f8fafc);
}

.pr-flag-person {
  background: #6366f1;
}

.pr-fraction-scene {
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
}

.pr-fraction-scene section {
  grid-row: span 3;
  display: grid;
  gap: 4px;
  place-items: center;
  padding: 12px;
  border-radius: 12px;
  background: #fff;
}

.pr-fraction-scene section span {
  width: 54px;
  height: 2px;
  background: #0f172a;
}

.pr-fraction-scene div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.pr-fraction-scene strong {
  width: 100%;
  color: #475569;
  font-size: 0.78rem;
}

.pr-fraction-scene .is-common {
  color: #fff;
  background: #be123c;
}

.pr-fraction-scene em {
  color: #334155;
  font-style: normal;
  font-weight: 900;
}

.pr-crypto-scene {
  grid-template-columns: 130px minmax(0, 1fr);
  align-items: center;
}

.pr-vault {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 110px;
  border: 8px solid #475569;
  border-radius: 999px;
  background: radial-gradient(circle, #f8fafc, #cbd5e1);
}

.pr-vault b {
  color: #111827;
  font-size: 1.8rem;
}

.pr-vault span {
  color: #475569;
  font-size: 0.65rem;
  font-weight: 950;
  text-transform: uppercase;
}

.pr-crypto-scene .is-prime {
  color: #fff;
  background: #059669;
}

.pr-crypto-scene .is-bad {
  color: #fff;
  background: #dc2626;
}

.pr-tree-scene {
  place-items: center;
}

.pr-tree-node,
.pr-tree-leaf {
  display: grid;
  gap: 8px;
  place-items: center;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.88);
}

.pr-tree-node b,
.pr-tree-leaf {
  display: grid;
  place-items: center;
  min-width: 42px;
  min-height: 34px;
  border-radius: 999px;
  color: #fff;
  background: #1d4ed8;
  font-weight: 950;
}

.pr-tree-node > span {
  display: flex;
  gap: 8px;
  align-items: start;
}

.pr-tree-leaf {
  background: #059669;
}

.pr-card-scene section {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 92px;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, #0f172a, #334155);
}

.pr-card-scene section b {
  font-size: 2.6rem;
}

.pr-card-scene section span {
  font-weight: 950;
}

.pr-more {
  display: inline-grid;
  place-items: center;
  min-height: 24px;
  padding: 2px 7px;
  border-radius: 999px;
  color: #475569;
  background: #e2e8f0;
}

@media (max-width: 1180px) {
  .pr-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .pr-topic .gt-nav,
  .pr-exp-workbench,
  .pr-exp-board,
  .pr-case-grid,
  .pr-case-controls,
  .pr-case-metrics,
  .pr-lock-scene,
  .pr-gear-scene,
  .pr-fraction-scene,
  .pr-crypto-scene {
    grid-template-columns: 1fr;
  }

  .pr-exp-grid,
  .pr-number-board {
    grid-template-columns: repeat(auto-fill, minmax(32px, 1fr));
  }
}