/* Game Engine I / Week 15 / three-period lesson set
   Visual rule: review is indigo, unresolved risk is amber, release proof is lime. */

html.game-engine-week-fifteen-root {
  scroll-behavior: auto;
}

body.course-game-engine-1.game-engine-week-fifteen {
  --w15-indigo: #5965b7;
  --w15-indigo-dark: #39438d;
  --w15-indigo-soft: #e4e6f5;
  --w15-amber: #b9771f;
  --w15-amber-dark: #82500d;
  --w15-amber-soft: #f3e6ce;
  --w15-lime: #98b93f;
  --w15-lime-dark: #607a18;
  --w15-lime-soft: #eaf1ce;
  --w15-code: #181b24;
  --w15-code-ink: #edf0f7;
  --w15-code-link: #78ced8;
  --w15-code-focus: #f0b563;
  --w15-action-bg: #39438d;
  --w15-action-hover: #4c579f;
  --w15-action-ink: #fffaf7;
  --w15-success-bg: #607a18;
  --w15-success-hover: #506812;
  --w15-success-ink: #fffaf7;
  --w15-focus-ring: #39438d;
  --w15-rule: color-mix(in srgb, var(--ink-strong) 17%, transparent);
  --w15-rule-strong: color-mix(in srgb, var(--ink-strong) 31%, transparent);
  background: var(--bg);
}

body.course-game-engine-1.game-engine-week-fifteen [id] {
  scroll-margin-top: 92px;
}

body.course-game-engine-1.game-engine-week-fifteen :is(a, button, input, select, summary, [tabindex="0"]):focus-visible {
  outline: 3px solid var(--w15-focus-ring);
  outline-offset: 3px;
}

body.course-game-engine-1.game-engine-week-fifteen .lesson-header {
  background: color-mix(in srgb, var(--paper) 95%, transparent);
}

body.course-game-engine-1.game-engine-week-fifteen .lesson-sequence a {
  min-height: 44px;
  border-color: color-mix(in srgb, var(--w15-indigo) 38%, var(--line));
  color: var(--w15-indigo-dark);
}

/* Hero */

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero {
  background: var(--paper);
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .hero-inner {
  min-height: min(720px, calc(100dvh - 58px));
  padding: clamp(46px, 7vh, 78px) 0;
  grid-template-columns: minmax(350px, 0.82fr) minmax(490px, 1.18fr);
  gap: clamp(44px, 5.4vw, 76px);
  align-items: center;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-copy {
  min-width: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .eyebrow {
  margin-bottom: 17px;
  color: var(--w15-indigo-dark);
  letter-spacing: 0.075em;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero h1 {
  max-width: 560px;
  font-size: clamp(43px, 5vw, 65px);
  font-weight: 795;
  letter-spacing: -0.064em;
  line-height: 1.01;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .lead {
  max-width: 510px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .lead code {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 0.88em;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .hero-actions {
  margin-top: 29px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

body.course-game-engine-1.game-engine-week-fifteen .hero-action {
  min-height: 44px;
  padding: 10px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-strong);
  font-size: 13px;
  font-weight: 720;
  line-height: 1.2;
  transition: border-color 150ms ease, transform 120ms var(--ease-out);
}

body.course-game-engine-1.game-engine-week-fifteen .hero-action-primary {
  border-color: var(--w15-action-bg);
  background: var(--w15-action-bg);
  color: var(--w15-action-ink);
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual {
  position: relative;
  min-width: 0;
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--w15-amber) 42%, var(--line));
  border-radius: 6px;
  overflow: hidden;
  background: var(--w15-code);
  box-shadow: 0 28px 68px rgba(13, 31, 34, 0.2);
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual::before {
  content: "";
  position: absolute;
  inset: 12px;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 3px;
  pointer-events: none;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual img {
  width: 100%;
  height: auto;
  border: 0;
  border-radius: 0;
  display: block;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual figcaption {
  margin: 0;
  padding: 13px 16px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  background: var(--w15-code);
  color: rgba(234, 240, 236, 0.7);
  font-size: 11px;
  line-height: 1.55;
  text-align: left;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual figcaption span {
  color: #f0b563;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Document frame */

body.course-game-engine-1.game-engine-week-fifteen .layout,
body.course-game-engine-1.game-engine-week-fifteen main.layout {
  padding: 80px 0 128px;
  grid-template-columns: minmax(0, 840px) minmax(220px, 250px);
  gap: clamp(54px, 7vw, 88px);
}

body.course-game-engine-1.game-engine-week-fifteen .article {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

body.course-game-engine-1.game-engine-week-fifteen .article :is(p, li, td, th, summary, label) {
  word-break: keep-all;
  overflow-wrap: break-word;
}

body.course-game-engine-1.game-engine-week-fifteen .article > :is(.week-fifteen-section, .scope-line) {
  margin-top: 104px;
}

body.course-game-engine-1.game-engine-week-fifteen .article > .arrival {
  margin-top: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .section-heading {
  max-width: 740px;
  margin-bottom: 32px;
}

body.course-game-engine-1.game-engine-week-fifteen.week-fifteen-period-three .arrival-list li > span {
  color: var(--w15-lime-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .section-heading h2,
body.course-game-engine-1.game-engine-week-fifteen .arrival h2 {
  margin: 0;
  padding: 0;
  border: 0;
  display: block;
  color: var(--ink-strong);
  font-size: clamp(29px, 3.5vw, 41px);
  font-weight: 780;
  letter-spacing: -0.048em;
  line-height: 1.14;
}

body.course-game-engine-1.game-engine-week-fifteen .section-heading h2::before,
body.course-game-engine-1.game-engine-week-fifteen .arrival h2::before {
  content: none;
  display: none;
}

body.course-game-engine-1.game-engine-week-fifteen .section-heading > p:last-child,
body.course-game-engine-1.game-engine-week-fifteen .arrival-heading > p:last-child {
  max-width: 65ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.76;
}

body.course-game-engine-1.game-engine-week-fifteen .article h3 {
  color: var(--ink-strong);
  font-family: var(--sans);
}

body.course-game-engine-1.game-engine-week-fifteen .article code {
  font-family: var(--mono);
}

/* Arrival and scope */

body.course-game-engine-1.game-engine-week-fifteen .arrival {
  padding-bottom: 76px;
  border-bottom: 1px solid var(--w15-rule-strong);
  display: grid;
  grid-template-columns: minmax(205px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(40px, 6vw, 72px);
  align-items: start;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list li {
  padding: 15px 0;
  border-top: 1px solid var(--w15-rule);
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list li > span {
  padding-top: 3px;
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

body.course-game-engine-1.game-engine-week-fifteen .arrival-list strong {
  color: var(--ink-strong);
  font-weight: 720;
}

body.course-game-engine-1.game-engine-week-fifteen .scope-line {
  padding: 25px 27px;
  border: 1px solid color-mix(in srgb, var(--w15-indigo) 38%, var(--line));
  border-left: 5px solid var(--w15-indigo);
  border-radius: 4px;
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  gap: 28px;
  align-items: center;
  background: color-mix(in srgb, var(--w15-indigo-soft) 62%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .scope-line span,
body.course-game-engine-1.game-engine-week-fifteen .scope-line strong {
  display: block;
}

body.course-game-engine-1.game-engine-week-fifteen .scope-line span {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .scope-line strong {
  margin-top: 7px;
  color: var(--ink-strong);
  font-size: 17px;
  line-height: 1.4;
}

body.course-game-engine-1.game-engine-week-fifteen .scope-line p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.73;
}

body.course-game-engine-1.game-engine-week-fifteen.week-fifteen-period-three .scope-line {
  border-color: color-mix(in srgb, var(--w15-lime) 44%, var(--line));
  border-left-color: var(--w15-lime);
  background: color-mix(in srgb, var(--w15-lime-soft) 62%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen.week-fifteen-period-three .scope-line span {
  color: var(--w15-lime-dark);
}

/* Agenda */

body.course-game-engine-1.game-engine-week-fifteen .agenda-track {
  border-top: 1px solid var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase {
  padding: 30px 0;
  border-bottom: 1px solid var(--w15-rule-strong);
  display: grid;
  grid-template-columns: minmax(190px, 0.58fr) minmax(0, 1.42fr);
  gap: 42px;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase > header > span,
body.course-game-engine-1.game-engine-week-fifteen .agenda-phase > header > p {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase > header > span {
  color: var(--w15-indigo-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase-build > header > span {
  color: var(--w15-amber-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase > header h3 {
  margin: 10px 0 0;
  font-size: 21px;
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.35;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase > header > p {
  margin: 10px 0 0;
  color: var(--quiet);
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase li {
  padding: 12px 0;
  border-top: 1px solid var(--w15-rule);
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 17px;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase li:first-child {
  padding-top: 0;
  border-top: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase time {
  padding-top: 2px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 10px;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase li strong {
  display: block;
  color: var(--ink-strong);
  font-size: 14px;
}

body.course-game-engine-1.game-engine-week-fifteen .agenda-phase li p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.62;
}

/* Week sequence */

body.course-game-engine-1.game-engine-week-fifteen .equation-strip {
  margin-top: 16px;
  padding: 20px 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 30px);
  background: var(--w15-code);
  color: var(--w15-code-ink);
  font-family: var(--mono);
  text-align: center;
}

body.course-game-engine-1.game-engine-week-fifteen .equation-strip span,
body.course-game-engine-1.game-engine-week-fifteen .equation-strip strong {
  font-size: 11px;
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .equation-strip span:first-child {
  color: #ff997d;
}

body.course-game-engine-1.game-engine-week-fifteen .equation-strip strong {
  color: #78ced8;
}

body.course-game-engine-1.game-engine-week-fifteen .equation-strip b {
  color: rgba(234, 240, 236, 0.48);
  font-size: 16px;
  font-weight: 400;
}

/* Steps, tables and instructor notes */

body.course-game-engine-1.game-engine-week-fifteen .build-steps {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--w15-rule-strong);
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .build-steps > li {
  padding: 27px 0;
  border-bottom: 1px solid var(--w15-rule-strong);
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 24px;
}

body.course-game-engine-1.game-engine-week-fifteen .step-number {
  width: 36px;
  height: 36px;
  border: 1px solid color-mix(in srgb, var(--w15-indigo) 58%, var(--line));
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .build-steps h3 {
  margin: 2px 0 10px;
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.025em;
}

body.course-game-engine-1.game-engine-week-fifteen .build-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.76;
}

body.course-game-engine-1.game-engine-week-fifteen .build-steps p + p {
  margin-top: 10px;
}

body.course-game-engine-1.game-engine-week-fifteen .step-check {
  padding-left: 15px;
  border-left: 2px solid var(--w15-lime);
}

body.course-game-engine-1.game-engine-week-fifteen .step-check strong {
  color: var(--w15-lime-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .table-wrap {
  width: 100%;
  margin-top: 18px;
  overflow-x: auto;
}

body.course-game-engine-1.game-engine-week-fifteen table {
  width: 100%;
  border-collapse: collapse;
}

body.course-game-engine-1.game-engine-week-fifteen th,
body.course-game-engine-1.game-engine-week-fifteen td {
  padding: 11px 13px;
  border: 1px solid var(--w15-rule);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
  text-align: left;
  vertical-align: top;
}

body.course-game-engine-1.game-engine-week-fifteen thead th {
  background: var(--surface);
  color: var(--ink-strong);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

body.course-game-engine-1.game-engine-week-fifteen tbody th {
  color: var(--ink-strong);
  font-weight: 690;
}

body.course-game-engine-1.game-engine-week-fifteen .teacher-check {
  margin-top: 20px;
  padding: 20px 23px;
  border-left: 4px solid var(--w15-lime);
  background: color-mix(in srgb, var(--w15-lime-soft) 60%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .teacher-check > span {
  display: block;
  color: var(--w15-lime-dark);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .teacher-check p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.72;
}

/* Rules and disclosure help */

body.course-game-engine-1.game-engine-week-fifteen .rule-banner {
  margin-top: 16px;
  padding: 22px 24px;
  border: 1px solid color-mix(in srgb, var(--w15-amber) 36%, var(--line));
  border-radius: 4px;
  display: grid;
  grid-template-columns: 145px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  background: color-mix(in srgb, var(--w15-amber-soft) 58%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .rule-banner span {
  color: var(--w15-amber-dark);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .rule-banner strong {
  color: var(--ink-strong);
  font-size: 16px;
  line-height: 1.5;
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid {
  margin-top: 22px;
  border-top: 1px solid var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid details {
  border-bottom: 1px solid var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid summary {
  padding: 17px 48px 17px 0;
  color: var(--ink-strong);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid .details-motion-content {
  padding: 0 42px 18px 0;
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid .details-motion-content p {
  max-width: 68ch;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.74;
}

/* Comparison and release grids */

body.course-game-engine-1.game-engine-week-fifteen .settings-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid article {
  border: 1px solid var(--w15-rule-strong);
  border-radius: 5px;
  overflow: hidden;
  background: var(--paper);
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid article > span {
  padding: 15px 18px;
  border-bottom: 1px solid var(--w15-rule-strong);
  display: block;
  color: var(--w15-amber-dark);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid article:last-child > span {
  color: var(--w15-indigo-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dl {
  margin: 0;
  padding: 6px 18px;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dl > div {
  padding: 10px 0;
  border-bottom: 1px solid var(--w15-rule);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dl > div:last-child {
  border-bottom: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dt,
body.course-game-engine-1.game-engine-week-fifteen .settings-grid dd {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dt {
  color: var(--muted);
}

body.course-game-engine-1.game-engine-week-fifteen .settings-grid dd {
  color: var(--ink-strong);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  text-align: right;
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board,
body.course-game-engine-1.game-engine-week-fifteen .submission-grid,
body.course-game-engine-1.game-engine-week-fifteen .exit-ticket {
  display: grid;
  gap: 1px;
  border: 1px solid var(--w15-rule-strong);
  border-radius: 5px;
  overflow: hidden;
  background: var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board article,
body.course-game-engine-1.game-engine-week-fifteen .submission-grid article,
body.course-game-engine-1.game-engine-week-fifteen .exit-ticket article {
  min-width: 0;
  padding: 23px;
  background: var(--paper);
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board span,
body.course-game-engine-1.game-engine-week-fifteen .comparison-grid span,
body.course-game-engine-1.game-engine-week-fifteen .failure-grid span {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board h3,
body.course-game-engine-1.game-engine-week-fifteen .comparison-grid h3,
body.course-game-engine-1.game-engine-week-fifteen .failure-grid h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 730;
  letter-spacing: -0.02em;
}

body.course-game-engine-1.game-engine-week-fifteen .contract-board p,
body.course-game-engine-1.game-engine-week-fifteen .comparison-grid p,
body.course-game-engine-1.game-engine-week-fifteen .failure-grid p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.68;
}

body.course-game-engine-1.game-engine-week-fifteen .comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

body.course-game-engine-1.game-engine-week-fifteen .comparison-grid article {
  padding: 23px;
  border-top: 2px solid var(--w15-indigo);
  background: color-mix(in srgb, var(--w15-indigo-soft) 34%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .comparison-grid article:last-child {
  border-top-color: var(--w15-lime-dark);
  background: color-mix(in srgb, var(--w15-lime-soft) 34%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .failure-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--w15-rule-strong);
  border-bottom: 1px solid var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .failure-grid article {
  min-width: 0;
  padding: 22px 20px;
  border-right: 1px solid var(--w15-rule);
  border-bottom: 1px solid var(--w15-rule);
}

body.course-game-engine-1.game-engine-week-fifteen .failure-grid article:nth-child(3n) {
  border-right: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .failure-grid article:nth-last-child(-n + 3) {
  border-bottom: 0;
}

/* Release test table */

body.course-game-engine-1.game-engine-week-fifteen .test-table input,
body.course-game-engine-1.game-engine-week-fifteen .test-table select {
  width: 100%;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink-strong);
  font-family: var(--sans);
  font-size: 12px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table input::placeholder {
  color: var(--quiet);
  opacity: 0.72;
}

body.course-game-engine-1.game-engine-week-fifteen .test-progress {
  min-height: 61px;
  padding: 10px 14px;
  border-left: 3px solid var(--w15-lime);
  display: grid;
  align-content: center;
  background: color-mix(in srgb, var(--w15-lime-soft) 56%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .test-progress span,
body.course-game-engine-1.game-engine-week-fifteen .test-progress strong {
  display: block;
}

body.course-game-engine-1.game-engine-week-fifteen .test-progress span {
  color: var(--w15-lime-dark);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
}

body.course-game-engine-1.game-engine-week-fifteen .test-progress strong {
  margin-top: 5px;
  color: var(--ink-strong);
  font-family: var(--mono);
  font-size: 13px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-progress[data-complete="true"] {
  background: var(--w15-lime-soft);
}

body.course-game-engine-1.game-engine-week-fifteen .test-table-wrap {
  margin-top: 0;
  border-right: 1px solid var(--w15-rule-strong);
  border-bottom: 1px solid var(--w15-rule-strong);
  border-left: 1px solid var(--w15-rule-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .test-table {
  min-width: 820px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table th,
body.course-game-engine-1.game-engine-week-fifteen .test-table td {
  padding: 10px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table thead th {
  border-top: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table tbody th {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 10px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table tr[data-result="pass"] {
  background: color-mix(in srgb, var(--w15-lime-soft) 42%, transparent);
}

body.course-game-engine-1.game-engine-week-fifteen .test-table tr[data-result="fail"] {
  background: color-mix(in srgb, var(--w15-indigo-soft) 42%, transparent);
}

body.course-game-engine-1.game-engine-week-fifteen .test-table select {
  min-width: 88px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-table input {
  min-width: 175px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

body.course-game-engine-1.game-engine-week-fifteen .test-action,
body.course-game-engine-1.game-engine-week-fifteen .completion-panel button {
  min-height: 44px;
  padding: 9px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink-strong);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 680;
  cursor: pointer;
  transition: border-color 150ms ease, background-color 150ms ease, transform 120ms var(--ease-out);
}

body.course-game-engine-1.game-engine-week-fifteen .test-action-primary {
  border-color: var(--w15-success-bg);
  background: var(--w15-success-bg);
  color: var(--w15-success-ink);
}

body.course-game-engine-1.game-engine-week-fifteen .test-actions > p {
  flex: 1 1 260px;
  margin: 0 0 0 7px;
  color: var(--quiet);
  font-size: 11.5px;
  line-height: 1.5;
}

body.course-game-engine-1.game-engine-week-fifteen .privacy-note {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--w15-lime-dark);
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
}

/* Troubleshooting */

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid details:nth-child(odd) {
  padding-right: 20px;
  border-right: 1px solid var(--w15-rule);
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid details:nth-child(even) {
  padding-left: 20px;
}

body.course-game-engine-1.game-engine-week-fifteen .trouble-grid summary {
  min-height: 74px;
  display: flex;
  align-items: center;
}

/* Submission */

body.course-game-engine-1.game-engine-week-fifteen .submission-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.course-game-engine-1.game-engine-week-fifteen .submission-grid span {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .submission-grid h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 730;
}

body.course-game-engine-1.game-engine-week-fifteen .submission-grid h3 code {
  color: var(--ink-strong);
  font-size: 0.82em;
}

body.course-game-engine-1.game-engine-week-fifteen .submission-grid p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.68;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel {
  margin-top: 20px;
  border: 1px solid var(--w15-rule-strong);
  border-radius: 5px;
  overflow: hidden;
  background: var(--paper);
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel > header {
  padding: 20px 22px;
  border-bottom: 1px solid var(--w15-rule-strong);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel header span {
  color: var(--w15-lime-dark);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel header h3 {
  margin: 6px 0 0;
  font-size: 18px;
  font-weight: 740;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel header > strong {
  color: var(--w15-lime-dark);
  font-family: var(--mono);
  font-size: 11px;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel[data-complete="true"] header {
  background: color-mix(in srgb, var(--w15-lime-soft) 66%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel ol {
  margin: 0;
  padding: 8px 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 28px;
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel li {
  border-bottom: 1px solid var(--w15-rule);
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel label {
  min-height: 61px;
  padding: 12px 0;
  display: grid;
  grid-template-columns: 19px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
  cursor: pointer;
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel input {
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  accent-color: var(--w15-lime-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel li[data-checked="true"] label {
  color: var(--ink-strong);
}

body.course-game-engine-1.game-engine-week-fifteen .completion-panel button {
  margin: 12px 22px 20px;
}

/* Exit and references */

body.course-game-engine-1.game-engine-week-fifteen .exit-ticket {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.course-game-engine-1.game-engine-week-fifteen .exit-ticket span {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .exit-ticket p {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.76;
}

body.course-game-engine-1.game-engine-week-fifteen .next-week {
  margin-top: 20px;
  padding: 25px;
  border-radius: 5px;
  display: grid;
  grid-template-columns: 145px minmax(0, 1fr);
  gap: 27px;
  background: var(--w15-code);
  color: var(--w15-code-ink);
}

body.course-game-engine-1.game-engine-week-fifteen .next-week > span {
  color: #78ced8;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
}

body.course-game-engine-1.game-engine-week-fifteen .next-week h3 {
  margin: 0;
  color: var(--w15-code-ink);
  font-size: 20px;
  font-weight: 730;
}

body.course-game-engine-1.game-engine-week-fifteen .next-week p {
  margin: 9px 0 0;
  color: rgba(234, 240, 236, 0.66);
  font-size: 13px;
  line-height: 1.7;
}

body.course-game-engine-1.game-engine-week-fifteen .next-week a {
  width: fit-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--w15-code-link);
  font-weight: 700;
  text-underline-offset: 4px;
  transition: color 150ms ease, transform 120ms var(--ease-out);
}

body.course-game-engine-1.game-engine-week-fifteen .next-week a:focus-visible {
  outline-color: var(--w15-code-focus);
}

body.course-game-engine-1.game-engine-week-fifteen .reference-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--w15-rule-strong);
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .reference-list li {
  padding: 15px 0;
  border-bottom: 1px solid var(--w15-rule);
  display: grid;
  grid-template-columns: minmax(240px, 0.82fr) minmax(0, 1.18fr);
  gap: 28px;
}

body.course-game-engine-1.game-engine-week-fifteen .reference-list a {
  color: var(--w15-amber-dark);
  font-size: 13px;
}

body.course-game-engine-1.game-engine-week-fifteen .reference-list span {
  color: var(--muted);
  font-size: 12.5px;
}

/* TOC */

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc {
  padding: 17px;
  border-color: var(--w15-rule-strong);
  border-radius: 5px;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc .toc-title {
  margin: 0 0 10px;
  color: var(--w15-indigo-dark);
  letter-spacing: 0.04em;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc ol {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  list-style: none;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc li {
  margin: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc a {
  min-height: 44px;
  padding: 7px 9px;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc a span {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 9px;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc a[aria-current="location"] {
  background: color-mix(in srgb, var(--w15-indigo-soft) 67%, var(--paper));
  color: var(--ink-strong);
  font-weight: 700;
}

body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc a[aria-current="location"] span {
  color: var(--w15-indigo-dark);
}

body.course-game-engine-1.game-engine-week-fifteen .toc-legend {
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--w15-rule);
  display: grid;
  grid-template-columns: 7px auto 7px auto 7px auto;
  gap: 6px;
  align-items: center;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

body.course-game-engine-1.game-engine-week-fifteen .toc-legend i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--w15-indigo);
}

body.course-game-engine-1.game-engine-week-fifteen .toc-legend i:nth-of-type(2) {
  background: var(--w15-amber);
}

body.course-game-engine-1.game-engine-week-fifteen .toc-legend i:nth-of-type(3) {
  background: var(--w15-lime);
}

body.course-game-engine-1.game-engine-week-fifteen > .footer-note {
  width: min(1180px, calc(100% - 48px));
  margin: -64px auto 48px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 10px;
}

/* Starter download */

body.course-game-engine-1.game-engine-week-fifteen .starter-download {
  margin-top: 26px;
  padding: 23px 25px;
  border: 1px solid color-mix(in srgb, var(--w15-lime) 46%, var(--line));
  border-left: 5px solid var(--w15-lime);
  border-radius: 4px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  background: color-mix(in srgb, var(--w15-lime-soft) 56%, var(--paper));
}

body.course-game-engine-1.game-engine-week-fifteen .starter-download :is(h3, p) {
  margin: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .starter-download h3 {
  font-size: 18px;
  letter-spacing: -0.025em;
}

body.course-game-engine-1.game-engine-week-fifteen .starter-download p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

body.course-game-engine-1.game-engine-week-fifteen .starter-download a {
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--w15-success-bg);
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--w15-success-bg);
  color: var(--w15-success-ink);
  font-size: 12px;
  font-weight: 720;
  transition: background-color 150ms ease, transform 120ms var(--ease-out);
}

@media (max-width: 760px) {

  body.course-game-engine-1.game-engine-week-fifteen .starter-download {
    grid-template-columns: 1fr;
  }

  body.course-game-engine-1.game-engine-week-fifteen .starter-download a {
    width: 100%;
  }
}

/* Release interview */

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid article {
  padding: 22px;
  border: 1px solid var(--w15-rule);
  border-top: 4px solid var(--w15-lime);
  border-radius: 4px;
  background: var(--paper);
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid article:nth-child(2) {
  border-top-color: var(--w15-amber);
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid article:nth-child(3) {
  border-top-color: var(--w15-indigo);
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid :is(span, h3, p) {
  margin: 0;
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid span {
  color: var(--quiet);
  font: 650 9px/1.2 var(--mono);
  letter-spacing: 0.05em;
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid h3 {
  margin-top: 10px;
  font-size: 18px;
}

body.course-game-engine-1.game-engine-week-fifteen .verdict-grid p {
  margin-top: 9px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.66;
}

body.course-game-engine-1.game-engine-week-fifteen .slot-table {
  min-width: 760px;
}

body.course-game-engine-1.game-engine-week-fifteen .slot-table th:first-child {
  color: var(--w15-indigo-dark);
  font-family: var(--mono);
  font-weight: 700;
}

@media (max-width: 760px) {
  body.course-game-engine-1.game-engine-week-fifteen .verdict-grid{
    grid-template-columns: 1fr;
  }

}

/* Responsive */

@media (max-width: 1120px) {
  body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .hero-inner {
    grid-template-columns: minmax(310px, 0.8fr) minmax(430px, 1.2fr);
    gap: 40px;
  }

}

@media (max-width: 980px) {
  body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero .hero-inner {
    min-height: 0;
    padding: 56px 0;
    grid-template-columns: 1fr;
    gap: 40px;
  }

  body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-copy {
    max-width: 680px;
  }

  body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-hero-visual {
    max-width: 760px;
  }

  body.course-game-engine-1.game-engine-week-fifteen .layout,
  body.course-game-engine-1.game-engine-week-fifteen main.layout {
    padding-top: 42px;
    grid-template-columns: 1fr;
    gap: 42px;
  }

  body.course-game-engine-1.game-engine-week-fifteen .week-fifteen-toc {
    position: sticky;
    top: 70px;
    z-index: 20;
    order: -1;
    max-height: none;
    padding: 11px 13px;
    overflow-x: auto;
    background: color-mix(in srgb, var(--paper) 95%, transparent);
    backdrop-filter: blur(14px);
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body.course-game-engine-1.game-engine-week-fifteen .hero-action:active,
body.course-game-engine-1.game-engine-week-fifteen .test-action:active,
body.course-game-engine-1.game-engine-week-fifteen .completion-panel button:active,
body.course-game-engine-1.game-engine-week-fifteen .starter-download a:active,
body.course-game-engine-1.game-engine-week-fifteen .lesson-sequence a:active,
body.course-game-engine-1.game-engine-week-fifteen .next-week a:active {
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  body.course-game-engine-1.game-engine-week-fifteen .article > :is(.week-fifteen-section, .scope-line) {
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