:root {
  color-scheme: dark;
  --mv-bg: #071018;
  --mv-ink: #f8fbff;
  --mv-muted: #a8b7c7;
  --mv-line: rgba(255, 255, 255, 0.14);
  --mv-panel: rgba(10, 18, 28, 0.84);
  --mv-panel-strong: rgba(14, 27, 42, 0.94);
  --mv-accent: #2de2c8;
  --mv-secondary: #ffd166;
  --mv-danger: #ff6b6b;
  --mv-shadow: rgba(0, 0, 0, 0.34);
  --mv-radius: 18px;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--mv-bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(45, 226, 200, 0.09), transparent 28rem),
    radial-gradient(circle at 78% 12%, rgba(255, 209, 102, 0.1), transparent 22rem),
    var(--mv-bg);
  color: var(--mv-ink);
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

:where(h1, h2, h3, [id]) {
  scroll-margin-top: 5.5rem;
}

.mv-skip {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 200;
  padding: 0.7rem 0.9rem;
  border-radius: var(--mv-radius);
  color: #06121b;
  background: var(--mv-accent);
  font-weight: 900;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.mv-skip:focus {
  transform: translateY(0);
}

:where(a, button):focus-visible {
  outline: 2px solid var(--mv-accent);
  outline-offset: 4px;
}

.mv-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  padding: 0.8rem clamp(1rem, 4vw, 2rem);
  border-bottom: 1px solid var(--mv-line);
  background: rgba(5, 12, 20, 0.78);
  backdrop-filter: blur(18px);
}

.mv-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--mv-ink);
  font-size: 1.15rem;
  font-weight: 900;
  text-decoration: none;
}

.mv-brand-mark {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--mv-accent), white 28%);
  border-radius: 50%;
  color: #06121b;
  background: var(--mv-accent);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--mv-accent), transparent 84%);
}

.mv-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.mv-nav a {
  min-height: 2.45rem;
  padding: 0.62rem 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--mv-radius);
  color: var(--mv-muted);
  text-decoration: none;
}

.mv-nav a:hover {
  border-color: var(--mv-line);
  color: var(--mv-ink);
  background: rgba(255, 255, 255, 0.06);
}

.mv-home main {
  width: min(116rem, calc(100% - 2rem));
  margin: 0 auto;
}

.mv-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(22rem, 1.1fr);
  gap: clamp(1rem, 4vw, 2.4rem);
  align-items: end;
  min-height: min(44rem, calc(100vh - 4rem));
  padding: clamp(2rem, 7vh, 5rem) 0 1.5rem;
}

.mv-kicker {
  margin: 0 0 0.85rem;
  color: var(--mv-accent);
  font-size: 0.83rem;
  font-weight: 900;
  text-transform: uppercase;
}

.mv-hero h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3.1rem, 7.2vw, 6.4rem);
  line-height: 0.9;
  letter-spacing: 0;
  text-wrap: balance;
}

.mv-hero p {
  max-width: 40rem;
  margin: 1.2rem 0 0;
  color: var(--mv-muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.55;
}

.mv-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.mv-hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  margin: 1.25rem 0 0;
  padding: 0;
  color: var(--mv-muted);
  list-style: none;
  font-size: 0.9rem;
  font-weight: 800;
}

.mv-hero-proof li::before {
  content: "✓";
  margin-right: 0.4rem;
  color: var(--mv-accent);
}

.mv-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--mv-accent), white 24%);
  border-radius: var(--mv-radius);
  background: var(--mv-accent);
  color: #06121b;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.mv-button:hover {
  filter: brightness(1.08);
}

.mv-button.secondary {
  border-color: var(--mv-line);
  background: rgba(255, 255, 255, 0.07);
  color: var(--mv-ink);
}

.mv-orbit-board {
  position: relative;
  min-height: 31rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), transparent),
    rgba(10, 18, 28, 0.7);
  box-shadow: 0 2rem 5rem var(--mv-shadow);
}

.mv-orbit-board canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 31rem;
}

.mv-orbit-caption {
  position: absolute;
  inset: auto 1rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  background: rgba(4, 10, 16, 0.76);
  backdrop-filter: blur(12px);
}

.mv-orbit-caption strong {
  display: block;
}

.mv-orbit-caption span {
  color: var(--mv-muted);
  font-size: 0.88rem;
}

.mv-section {
  padding: 1rem 0 clamp(2rem, 7vh, 4rem);
}

.mv-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.mv-section-head h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-wrap: balance;
}

.mv-section-head p {
  max-width: 35rem;
  margin: 0;
  color: var(--mv-muted);
  line-height: 1.55;
}

.mv-game-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.mv-game-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 24rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  overflow: hidden;
  background: var(--mv-panel);
  color: var(--mv-ink);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.mv-game-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--game-accent, var(--mv-accent)), white 16%);
  background: var(--mv-panel-strong);
}

.mv-card-preview {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #08111f;
}

.mv-card-body {
  padding: 1rem;
}

.mv-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.8rem;
}

.mv-pill {
  padding: 0.34rem 0.55rem;
  border: 1px solid var(--mv-line);
  border-radius: 999px;
  color: var(--mv-muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.mv-game-card h3 {
  margin: 0;
  color: var(--game-accent, var(--mv-accent));
  font-size: 1.55rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.mv-game-card p {
  margin: 0.75rem 0 0;
  color: var(--mv-muted);
  line-height: 1.5;
}

.mv-adventure-trail { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(10rem,1fr) auto; align-items: center; gap: 18px; margin: 22px 0 14px; padding: 20px; border: 1px solid #b9cdb8; border-radius: 18px; background: linear-gradient(115deg,#f4f7e9,#e5f3e9); color: #244b3d; }
.mv-adventure-trail h3 { margin: 3px 0 6px; font-size: clamp(1.15rem,2vw,1.5rem); letter-spacing: -.025em; }
.mv-adventure-trail p { margin: 0; font-size: .82rem; line-height: 1.5; }
.mv-adventure-trail .mv-kicker { color: #527362; font-size: .65rem; font-weight: 850; letter-spacing: .11em; }
.mv-trail-progress { height: 9px; margin-top: 12px; overflow: hidden; border-radius: 99px; background: #d4e2d3; }
.mv-trail-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg,#78bd8b,#ebb755); transition: width 320ms ease; }
.mv-trail-rewards { max-width: 16rem; color: #446650; font-size: .82rem; font-weight: 750; line-height: 1.5; }
.mv-trail-storage { grid-column: 1/-1; color: #795824; }
.mv-game-card .mv-card-chapter { min-height: 2.8em; color: #577265; font-size: .75rem; font-weight: 750; }
.mv-game-card.has-progress .mv-card-completed { display: block; }
.mv-game-card.has-progress .mv-card-action::before { content: 'Trail in progress'; color: #477455; font-size: .7rem; }
.mv-chapter-choice { grid-column: 1/-1; display: grid; grid-template-columns: auto minmax(0,1fr); align-items: center; gap: 4px 12px; }
.mv-chapter-choice select { max-width: 100%; }
.mv-chapter-choice small { grid-column: 1/-1; color: #adc7cd; font-size: .72rem; font-weight: 550; line-height: 1.45; }
.mv-chapter-result { color: #bce4ce !important; font-size: .78rem !important; line-height: 1.45; }
#next-chapter[hidden] { display: none; }

.mv-card-action {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--mv-line);
  color: var(--game-accent, var(--mv-accent));
  font-weight: 900;
}

.mv-footer {
  display: grid;
  grid-template-columns: minmax(16rem, 1fr) auto auto;
  gap: 1.5rem 3rem;
  align-items: center;
  padding: 2.25rem max(1rem, calc((100% - 116rem) / 2));
  border-top: 1px solid var(--mv-line);
  color: var(--mv-muted);
}

.mv-footer p {
  margin: 0.8rem 0 0;
}

.mv-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.mv-footer nav a {
  color: var(--mv-muted);
  text-decoration: none;
}

.mv-footer nav a:hover {
  color: var(--mv-ink);
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.mv-footer small {
  white-space: nowrap;
}

.mv-explainer,
.mv-pathways,
.mv-trust-band,
.mv-faq {
  margin: clamp(2rem, 7vh, 5rem) 0;
}

.mv-step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--mv-line);
  border-bottom: 1px solid var(--mv-line);
  list-style: none;
}

.mv-step-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.mv-step-list li + li {
  border-left: 1px solid var(--mv-line);
}

.mv-step-list li > span {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 50%;
  color: #06121b;
  background: var(--mv-accent);
  font-weight: 900;
}

.mv-step-list h3,
.mv-step-list p {
  margin: 0;
}

.mv-step-list h3 {
  font-size: 1.2rem;
}

.mv-step-list p {
  margin-top: 0.45rem;
  color: var(--mv-muted);
  line-height: 1.55;
}

.mv-pathways {
  display: grid;
  grid-template-columns: minmax(18rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: start;
  padding: clamp(1.5rem, 5vw, 4rem);
  border: 1px solid var(--mv-line);
  border-radius: calc(var(--mv-radius) * 2);
  background:
    radial-gradient(circle at 100% 0%, rgba(45, 226, 200, 0.15), transparent 25rem),
    rgba(255, 255, 255, 0.035);
}

.mv-pathways h2,
.mv-trust-band h2,
.mv-faq h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 0.98;
  text-wrap: balance;
}

.mv-pathways-copy p,
.mv-trust-band p,
.mv-faq > div:first-child p {
  color: var(--mv-muted);
  line-height: 1.65;
}

.mv-text-link {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  color: var(--mv-accent);
  font-weight: 900;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.mv-pathway-links {
  border-top: 1px solid var(--mv-line);
}

.mv-pathway-links a {
  display: grid;
  grid-template-columns: minmax(9rem, 0.55fr) 1fr;
  gap: 1rem;
  padding: 1.2rem 0.2rem;
  border-bottom: 1px solid var(--mv-line);
  color: var(--mv-ink);
  text-decoration: none;
}

.mv-pathway-links a:hover strong {
  color: var(--mv-accent);
}

.mv-pathway-links span {
  color: var(--mv-muted);
  line-height: 1.5;
}

.mv-trust-band {
  display: grid;
  grid-template-columns: minmax(18rem, 1fr) auto;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: center;
  padding: clamp(1.5rem, 5vw, 3.5rem) 0;
  border-top: 1px solid var(--mv-line);
  border-bottom: 1px solid var(--mv-line);
}

.mv-trust-band ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(7rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mv-trust-band li {
  display: grid;
  gap: 0.35rem;
}

.mv-trust-band strong {
  color: var(--mv-accent);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.mv-trust-band li span {
  max-width: 8rem;
  color: var(--mv-muted);
  line-height: 1.35;
}

.mv-faq {
  display: grid;
  grid-template-columns: minmax(16rem, 0.55fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
}

.mv-faq details {
  border-top: 1px solid var(--mv-line);
}

.mv-faq details:last-child {
  border-bottom: 1px solid var(--mv-line);
}

.mv-faq summary {
  padding: 1.2rem 2.5rem 1.2rem 0;
  color: var(--mv-ink);
  font-size: 1.05rem;
  font-weight: 900;
  cursor: pointer;
}

.mv-faq details p {
  max-width: 46rem;
  margin: -0.3rem 0 1.2rem;
  color: var(--mv-muted);
  line-height: 1.65;
}

.mv-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  width: min(76rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.1rem 0 0;
  color: var(--mv-muted);
  font-size: 0.85rem;
}

.mv-breadcrumbs a {
  color: var(--mv-muted);
  text-underline-offset: 0.2em;
}

.mv-game-breadcrumbs {
  width: min(94rem, calc(100% - 2rem));
}

.mv-game-info {
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(0, 1.25fr);
  gap: 1.5rem clamp(2rem, 7vw, 7rem);
  width: min(94rem, calc(100% - 2rem));
  margin: 2rem auto clamp(3rem, 8vh, 6rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--mv-line);
  border-radius: calc(var(--mv-radius) * 2);
  background: rgba(255, 255, 255, 0.035);
}

.mv-game-info h2 {
  margin: 0;
  color: var(--mv-accent);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  text-wrap: balance;
}

.mv-game-info p,
.mv-game-info dd {
  color: var(--mv-muted);
  line-height: 1.6;
}

.mv-game-info dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
}

.mv-game-info dl > div {
  padding-top: 0.8rem;
  border-top: 1px solid var(--mv-line);
}

.mv-game-info dt {
  color: var(--mv-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.mv-game-info dd {
  margin: 0.45rem 0 0;
}

.mv-game-safety {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--mv-line);
}

.mv-game-credit {
  grid-column: 1 / -1;
  margin: -0.55rem 0 0;
  color: var(--mv-muted);
  font-size: 0.78rem;
}

.mv-game-credit a {
  color: var(--mv-muted);
  text-underline-offset: 0.18em;
}

.mv-guide main,
.mv-guide #main-content {
  width: min(76rem, calc(100% - 2rem));
  margin: 0 auto;
}

.mv-guide-hero {
  max-width: 67rem;
  padding: clamp(3rem, 9vh, 7rem) 0 clamp(2.5rem, 7vh, 5rem);
}

.mv-guide-hero h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 0.9;
  text-wrap: balance;
}

.mv-guide-hero > p {
  max-width: 54rem;
  margin: 1.5rem 0 0;
  color: var(--mv-muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.mv-guide-section {
  padding: clamp(2.5rem, 7vh, 5rem) 0;
  border-top: 1px solid var(--mv-line);
}

.mv-guide-section > h2,
.mv-guide-testing h2,
.mv-guide-cta h2 {
  max-width: 18ch;
  margin: 0 0 2rem;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 0.98;
  text-wrap: balance;
}

.mv-guide-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 5vw, 4rem);
}

.mv-guide-columns > div {
  padding-top: 1rem;
  border-top: 1px solid var(--mv-line);
}

.mv-guide-columns strong {
  color: var(--mv-accent);
  font-size: 1.1rem;
}

.mv-guide-columns p,
.mv-activity-list p,
.mv-guide-testing p,
.mv-guide-cta p {
  color: var(--mv-muted);
  line-height: 1.65;
}

.mv-activity-list {
  border-top: 1px solid var(--mv-line);
}

.mv-activity-list article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--mv-line);
}

.mv-activity-list article span {
  color: var(--mv-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mv-activity-list h3 {
  margin: 0.35rem 0 0;
  font-size: 1.4rem;
}

.mv-activity-list p {
  max-width: 48rem;
  margin: 0.55rem 0 0;
}

.mv-activity-list article > div:last-child {
  display: grid;
  gap: 0.5rem;
  min-width: 11rem;
}

.mv-activity-list a {
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  color: var(--mv-ink);
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.mv-activity-list a:hover {
  border-color: var(--mv-accent);
  color: var(--mv-accent);
}

.mv-guide-testing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 6rem);
}

.mv-guide-testing h2 {
  margin-bottom: 1rem;
}

.mv-guide-cta {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  margin: 1rem 0 clamp(3rem, 8vh, 6rem);
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--mv-line);
  border-radius: calc(var(--mv-radius) * 2);
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 209, 102, 0.13), transparent 24rem),
    rgba(255, 255, 255, 0.04);
}

.mv-guide-cta h2,
.mv-guide-cta p {
  margin-block: 0;
}

.mv-guide-cta p {
  margin-top: 0.6rem;
}

.mv-game .mv-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.34fr);
  align-items: start;
  gap: 1rem;
  width: min(94rem, calc(100% - 2rem));
  min-height: calc(100vh - 4rem);
  margin: 0 auto;
  padding: 1rem 0 1.25rem;
}

.mv-game[data-game="signal-trace"] .mv-shell {
  align-items: start;
}

.mv-game .mv-stage-card {
  width: 100%;
  min-height: 38rem;
  height: calc(100vh - 6rem);
  max-height: 64rem;
}

.mv-stage-card,
.mv-panel {
  border: 1px solid color-mix(in srgb, var(--mv-accent), white 18%);
  border-radius: var(--mv-radius);
  background:
    linear-gradient(145deg, rgba(42, 32, 97, 0.76), rgba(5, 8, 35, 0.92)),
    var(--mv-panel);
  box-shadow:
    0 1.5rem 4.5rem var(--mv-shadow),
    0 0 0 5px color-mix(in srgb, var(--mv-accent), transparent 90%),
    inset 0 1px rgba(255, 255, 255, 0.14);
}

.mv-stage-card {
  position: relative;
  min-height: 38rem;
  overflow: hidden;
  isolation: isolate;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 38rem;
  background: #07101d;
  touch-action: none;
}

.mv-runner-3d-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  background: #07152d;
  transition: opacity 280ms ease;
}

.mv-runner-3d-layer.is-ready {
  opacity: 1;
}

.mv-runner-3d-layer canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.mv-runner-3d-loading {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgba(137, 246, 255, 0.42);
  border-radius: 999px;
  background: rgba(4, 14, 36, 0.74);
  color: rgba(236, 253, 255, 0.82);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.mv-runner-3d-layer.is-ready .mv-runner-3d-loading {
  display: none;
}

.mv-runner-contact-feedback {
  position: absolute;
  top: 55%;
  left: 50%;
  z-index: 3;
  min-width: 10rem;
  max-width: min(19rem, calc(100% - 2rem));
  padding: 0.65rem 0.9rem;
  border: 2px solid var(--mv-accent);
  border-radius: 999px;
  background: rgba(4, 12, 22, 0.9);
  box-shadow: 0 0 1.5rem color-mix(in srgb, var(--mv-accent), transparent 50%);
  color: #ffffff;
  font-size: clamp(0.78rem, 1.7vw, 1rem);
  font-weight: 900;
  letter-spacing: 0.045em;
  line-height: 1.1;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 1rem) scale(0.86);
  transition: opacity 120ms ease, transform 180ms ease, border-color 120ms ease, box-shadow 120ms ease;
}

.mv-runner-contact-feedback.is-visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.mv-runner-contact-feedback.is-miss {
  border-color: var(--mv-secondary);
  box-shadow: 0 0 1.5rem color-mix(in srgb, var(--mv-secondary), transparent 50%);
}

.mv-runner-contact-feedback.is-hazard {
  border-color: var(--mv-danger);
  box-shadow: 0 0 1.5rem color-mix(in srgb, var(--mv-danger), transparent 50%);
}

.mv-runner-contact-feedback.is-slipstream {
  border-color: #4eedff;
  box-shadow: 0 0 1.5rem rgba(78, 237, 255, 0.65);
}

.mv-hud {
  position: absolute;
  inset: 0.8rem 0.8rem auto auto;
  z-index: 4;
  display: grid;
  width: min(18.5rem, calc(100% - 1.6rem));
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.35rem;
  pointer-events: none;
}

.mv-rescue-readout {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 4;
  display: flex;
  gap: 0.4rem;
  max-width: calc(100% - 2rem);
  padding: 0.38rem 0.5rem;
  border: 1px solid rgba(145, 246, 255, 0.38);
  border-radius: 0.8rem;
  background: rgba(4, 18, 34, 0.68);
  box-shadow: 0 0.45rem 1.4rem rgba(0, 0, 0, 0.18), inset 0 1px rgba(255, 255, 255, 0.12);
  color: rgba(236, 253, 255, 0.78);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  pointer-events: none;
  backdrop-filter: blur(10px);
}

.mv-rescue-readout span {
  display: inline-flex;
  gap: 0.22rem;
  align-items: baseline;
  white-space: nowrap;
}

.mv-rescue-readout span + span {
  padding-left: 0.4rem;
  border-left: 1px solid rgba(145, 246, 255, 0.25);
}

.mv-rescue-readout b {
  color: #ffffff;
  font-size: 0.78rem;
}

.mv-rescue-dive {
  display: inline-flex;
  min-width: 3.45rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.05rem;
  margin: -0.16rem -0.28rem -0.16rem 0.1rem;
  padding: 0.16rem 0.38rem 0.19rem;
  border: 1px solid rgba(145, 246, 255, 0.36);
  border-radius: 0.62rem;
  background: rgba(9, 43, 70, 0.65);
  color: rgba(236, 253, 255, 0.56);
  font: inherit;
  font-size: 0.58rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  pointer-events: auto;
  cursor: not-allowed;
  transition: transform 120ms ease, border-color 120ms ease, color 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.mv-rescue-dive span {
  display: block;
  padding: 0;
  border: 0;
  color: inherit;
  font-size: 0.58rem;
}

.mv-rescue-dive b {
  color: inherit;
  font-size: 0.67rem;
}

.mv-rescue-dive.is-ready {
  border-color: #c7f464;
  background: rgba(106, 155, 47, 0.45);
  box-shadow: 0 0 0.8rem rgba(199, 244, 100, 0.38), inset 0 1px rgba(255, 255, 255, 0.2);
  color: #ffffff;
  cursor: pointer;
  animation: mv-dive-ready 1.2s ease-in-out infinite;
}

.mv-rescue-dive.is-ready:hover,
.mv-rescue-dive.is-ready:focus-visible {
  transform: translateY(-1px) scale(1.04);
  outline: none;
}

.mv-rescue-dive.is-active {
  border-color: #ffffff;
  background: rgba(48, 206, 226, 0.6);
  box-shadow: 0 0 1rem rgba(142, 247, 237, 0.62);
  color: #ffffff;
  cursor: default;
}

@keyframes mv-dive-ready {
  0%, 100% { box-shadow: 0 0 0.6rem rgba(199, 244, 100, 0.28), inset 0 1px rgba(255, 255, 255, 0.2); }
  50% { box-shadow: 0 0 1.05rem rgba(199, 244, 100, 0.58), inset 0 1px rgba(255, 255, 255, 0.2); }
}

.mv-rescue-sonar {
  display: inline-flex;
  min-width: 3.45rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.05rem;
  margin: -0.16rem 0.15rem -0.16rem 0.1rem;
  padding: 0.16rem 0.38rem 0.19rem;
  border: 1px solid rgba(100, 245, 255, 0.36);
  border-radius: 0.62rem;
  background: rgba(8, 48, 76, 0.65);
  color: rgba(236, 253, 255, 0.56);
  font: inherit;
  font-size: 0.58rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  pointer-events: auto;
  cursor: not-allowed;
  transition: transform 120ms ease, border-color 120ms ease, color 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.mv-rescue-sonar span {
  display: block;
  padding: 0;
  border: 0;
  color: inherit;
  font-size: 0.58rem;
}

.mv-rescue-sonar b {
  color: inherit;
  font-size: 0.67rem;
}

.mv-rescue-sonar.is-ready {
  border-color: #4eedff;
  background: rgba(24, 120, 160, 0.45);
  box-shadow: 0 0 0.8rem rgba(78, 237, 255, 0.35), inset 0 1px rgba(255, 255, 255, 0.2);
  color: #ffffff;
  cursor: pointer;
}

.mv-rescue-sonar.is-ready:hover,
.mv-rescue-sonar.is-ready:focus-visible {
  transform: translateY(-1px) scale(1.04);
  outline: none;
}

.mv-rescue-sonar.is-active {
  border-color: #ffffff;
  background: rgba(78, 237, 255, 0.6);
  box-shadow: 0 0 1rem rgba(78, 237, 255, 0.7);
  color: #ffffff;
  cursor: default;
}

.mv-ocean-zone-banner {
  position: absolute;
  top: 18%;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  padding: 0.55rem 1.4rem;
  border: 1px solid rgba(100, 245, 255, 0.45);
  border-radius: 999px;
  background: rgba(6, 26, 46, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(78, 237, 255, 0.35);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  pointer-events: none;
  z-index: 12;
  opacity: 0;
  transition: opacity 300ms ease, transform 400ms cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

.mv-ocean-zone-banner.is-active {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 600px) {
  .mv-rescue-readout {
    top: 5.6rem;
    right: 0.5rem;
    left: 0.5rem;
    padding: 0.25rem 0.45rem;
    font-size: 0.62rem;
    gap: 0.25rem;
    justify-content: space-between;
    align-items: center;
  }
  .mv-rescue-readout span {
    gap: 0.15rem;
    font-size: 0.6rem;
  }
  .mv-rescue-readout span:nth-of-type(2) {
    display: none;
  }
  .mv-rescue-readout span + span {
    padding-left: 0.25rem;
  }
  .mv-rescue-dive,
  .mv-rescue-sonar {
    min-width: 2.9rem;
    margin: 0;
    padding: 0.12rem 0.28rem 0.15rem;
    font-size: 0.52rem;
  }
  .mv-rescue-dive b,
  .mv-rescue-sonar b {
    font-size: 0.62rem;
  }
}

.mv-hud span {
  min-width: 0;
  min-height: 2.75rem;
  padding: 0.4rem 0.48rem;
  border: 1px solid color-mix(in srgb, var(--mv-accent), white 22%);
  border-radius: 13px;
  background:
    linear-gradient(145deg, rgba(42, 33, 96, 0.66), rgba(6, 10, 37, 0.76));
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.14),
    0 8px 24px rgba(0, 0, 0, 0.3);
  color: #c8d3ff;
  font-size: 0.66rem;
  line-height: 1.1;
  text-align: center;
  backdrop-filter: blur(14px);
}

.mv-hud b {
  display: block;
  margin-top: 0.1rem;
  color: #ffffff;
  text-shadow: 0 0 12px color-mix(in srgb, var(--mv-accent), transparent 35%);
  font-size: 0.95rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.mv-camera {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 5;
  width: min(11rem, 26vw);
  aspect-ratio: 4 / 3;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  object-fit: cover;
  transform: scaleX(-1);
  opacity: 0.72;
  background: #000;
}

.mv-camera:empty {
  display: none;
}

.mv-permission {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(2, 7, 12, 0.78);
}

.mv-permission-card {
  width: min(34rem, 100%);
  padding: clamp(1rem, 4vw, 1.5rem);
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  background: rgba(6, 15, 24, 0.96);
  text-align: center;
}

.mv-permission-card h1 {
  margin: 0;
  color: var(--mv-accent);
  font-size: clamp(2.4rem, 9vw, 5rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.mv-permission-card p,
.mv-panel p,
.mv-panel li {
  color: var(--mv-muted);
  line-height: 1.6;
}

.mv-permission-tip {
  margin-top: 1rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid color-mix(in srgb, var(--mv-accent) 36%, transparent);
  border-radius: 14px;
  color: var(--mv-ink);
  background: color-mix(in srgb, var(--mv-accent) 10%, transparent);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.45;
}

.mv-permission-tip strong {
  color: var(--mv-accent);
}

.mv-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  margin-top: 1rem;
}

.mv-button.phone {
  border-color: color-mix(in srgb, #67e8f9 55%, transparent);
  background: linear-gradient(135deg, #67e8f9, #22d3ee);
  color: #071018;
}

.mv-remote-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(2, 7, 12, 0.88);
  backdrop-filter: blur(14px);
}

.mv-remote-modal[hidden] {
  display: none;
}

.mv-remote-card {
  position: relative;
  width: min(31rem, 100%);
  max-height: calc(100svh - 2rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1.4rem;
  border: 1px solid color-mix(in srgb, var(--mv-accent) 45%, transparent);
  border-radius: 22px;
  background: var(--mv-panel-strong);
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.55);
  text-align: center;
}

.mv-remote-card h2 {
  margin: 0.3rem 0 0.5rem;
  color: var(--mv-accent);
  font-size: clamp(1.8rem, 7vw, 2.8rem);
}

.mv-remote-card > p {
  color: var(--mv-muted);
  line-height: 1.45;
}

.mv-remote-close {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--mv-line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

.mv-remote-qr {
  display: grid;
  width: 244px;
  min-height: 244px;
  place-items: center;
  margin: 1rem auto;
  padding: 12px;
  border-radius: 18px;
  background: white;
  color: #071018;
}

.mv-remote-qr img,
.mv-remote-qr canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.mv-remote-url {
  display: block;
  overflow-wrap: anywhere;
  color: #67e8f9;
  font-size: 0.76rem;
}

.mv-remote-status {
  min-height: 2.7rem;
  margin: 1rem 0;
  padding: 0.7rem;
  border: 1px solid var(--mv-line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--mv-muted);
  font-weight: 750;
}

.mv-remote-status[data-state="connected"] {
  border-color: #45f2a1;
  color: #86efac;
}

.mv-remote-status[data-state="error"] {
  border-color: #fb7185;
  color: #fda4af;
}

.mv-controller {
  min-height: 100svh;
}

.mv-controller-shell {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 1rem;
}

.mv-controller-card {
  width: min(34rem, 100%);
  padding: 1.2rem;
  border: 1px solid var(--mv-line);
  border-radius: 24px;
  background: var(--mv-panel-strong);
  text-align: center;
}

.mv-controller-card .mv-brand {
  margin-bottom: 1rem;
  text-decoration: none;
}

.mv-controller-card h1 {
  margin: 0.3rem 0;
  color: var(--mv-accent);
  font-size: clamp(2rem, 10vw, 3.4rem);
  line-height: 0.95;
}

.mv-controller-card > p {
  color: var(--mv-muted);
  line-height: 1.45;
}

.mv-controller-video-wrap {
  position: relative;
  overflow: hidden;
  margin: 1rem 0;
  border: 2px solid var(--mv-accent);
  border-radius: 22px;
  aspect-ratio: 3 / 4;
  background: #02070c;
}

#controller-video,
#controller-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

#controller-overlay {
  pointer-events: none;
}

#controller-dot {
  position: absolute;
  width: 2.5rem;
  height: 2.5rem;
  translate: -50% -50%;
  border: 4px solid white;
  border-radius: 50%;
  background: var(--mv-accent);
  box-shadow: 0 0 24px var(--mv-accent);
  pointer-events: none;
}

.mv-controller-card .mv-button {
  width: 100%;
  margin-top: 0.55rem;
}

.mv-controller-privacy {
  margin-bottom: 0;
  font-size: 0.78rem;
}

.mv-panel {
  padding: 1rem;
}

.mv-panel .mv-game-title,
.mv-panel h2 {
  margin: 0 0 0.75rem;
  letter-spacing: 0;
}

.mv-panel .mv-game-title {
  color: var(--mv-accent);
  font-size: 1.75rem;
  line-height: 1.05;
}

.mv-panel h2 {
  margin-top: 1.2rem;
  font-size: 1rem;
}

.mv-kid-tip {
  display: grid;
  gap: 3px;
  margin: 1rem 0 0;
  padding: 0.8rem 0.9rem;
  border: 1px solid color-mix(in srgb, var(--mv-accent) 38%, transparent);
  border-radius: 14px;
  color: var(--mv-ink);
  background: color-mix(in srgb, var(--mv-accent) 10%, transparent);
}

.mv-kid-tip strong {
  color: var(--mv-accent);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mv-kid-tip span {
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.4;
}

.mv-panel ul {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
}

.mv-status {
  min-height: 4.8rem;
  margin-top: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  color: var(--mv-muted);
  background: rgba(0, 0, 0, 0.24);
  line-height: 1.45;
  box-sizing: border-box;
}

.mv-trace-lessons {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(34, 211, 238, 0.06);
}

.mv-trace-lessons h2 {
  margin-top: 0;
}

.mv-trace-levels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.mv-trace-level {
  min-height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  color: var(--mv-muted);
  background: rgba(255, 255, 255, 0.04);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.mv-trace-level span {
  display: block;
  margin-top: 3px;
  font-size: 0.7rem;
}

.mv-trace-level:hover,
.mv-trace-level:focus-visible,
.mv-trace-level.is-active {
  color: #071018;
  border-color: var(--mv-accent);
  background: var(--mv-accent);
}

.mv-trace-level:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.mv-trace-level:disabled:hover {
  color: var(--mv-muted);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.mv-trace-progress {
  margin: 14px 0 4px;
  color: var(--mv-text) !important;
  font-weight: 900;
}

.mv-trace-word-board {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

.mv-trace-word-board[hidden] {
  display: none;
}

.mv-trace-word-board span {
  display: grid;
  width: 32px;
  height: 36px;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  color: var(--mv-muted);
  background: rgba(0, 0, 0, 0.24);
  font-weight: 950;
  transition: transform 160ms ease, color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.mv-trace-word-board span.is-current {
  color: #071018;
  border-color: var(--mv-secondary);
  background: var(--mv-secondary);
  box-shadow: 0 0 16px color-mix(in srgb, var(--mv-secondary) 50%, transparent);
  transform: translateY(-2px) rotate(-2deg);
}

.mv-trace-word-board span.is-done {
  color: #071018;
  border-color: #45f2a1;
  background: #45f2a1;
}

.mv-trace-help {
  margin: 0;
  font-size: 0.84rem;
}

.mv-trace-rewards {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0;
}

.mv-trace-rewards span {
  padding: 6px 9px;
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: 999px;
  color: #fde68a;
  background: rgba(251, 191, 36, 0.08);
  font-size: 0.76rem;
  font-weight: 900;
}

.mv-trace-custom {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mv-trace-custom label {
  display: block;
  margin-bottom: 7px;
  color: var(--mv-ink);
  font-size: 0.85rem;
  font-weight: 900;
}

.mv-trace-custom > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px;
}

.mv-trace-custom input,
.mv-trace-custom button {
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  font: inherit;
}

.mv-trace-custom .mv-trace-quick {
  display: flex;
  grid-template-columns: none;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 9px;
}

.mv-trace-quick span {
  color: var(--mv-muted);
  font-size: 0.75rem;
  font-weight: 900;
}

.mv-trace-custom .mv-trace-quick button {
  min-height: 30px;
  padding: 0 9px;
  border-color: rgba(251, 191, 36, 0.28);
  border-radius: 999px;
  color: #fde68a;
  background: rgba(251, 191, 36, 0.08);
  font-size: 0.72rem;
}

.mv-trace-custom .mv-trace-quick button:hover {
  color: #071018;
  background: #fbbf24;
}

.mv-trace-custom input {
  min-width: 0;
  padding: 0 11px;
  color: var(--mv-ink);
  background: rgba(0, 0, 0, 0.28);
  text-transform: uppercase;
}

.mv-trace-custom button {
  padding: 0 12px;
  color: #071018;
  background: var(--mv-secondary);
  font-weight: 900;
  cursor: pointer;
}

.mv-trace-custom input:focus-visible,
.mv-trace-custom button:focus-visible {
  border-color: var(--mv-secondary);
  outline: 2px solid var(--mv-secondary);
  outline-offset: 2px;
}

.mv-trace-custom small {
  display: block;
  margin-top: 7px;
  color: var(--mv-muted);
  line-height: 1.4;
}

.mv-trace-custom .mv-trace-count {
  margin-top: 2px;
  color: color-mix(in srgb, var(--mv-accent) 75%, white);
  font-size: 0.7rem;
  font-weight: 800;
}

.mv-trace-custom.has-error small {
  color: #fda4af;
}

.mv-game-links {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.mv-game-links a {
  padding: 0.68rem 0.75rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  color: var(--mv-muted);
  text-decoration: none;
}

.mv-game-links a:hover {
  color: var(--mv-ink);
  background: rgba(255, 255, 255, 0.06);
}

.mv-retired {
  display: grid;
  min-height: calc(100vh - 4rem);
  place-items: center;
  padding: 1rem;
}

.mv-retired-panel {
  width: min(36rem, 100%);
  padding: 1.2rem;
  border: 1px solid var(--mv-line);
  border-radius: var(--mv-radius);
  background: var(--mv-panel);
}

.mv-retired-panel h1 {
  margin: 0 0 0.8rem;
  color: var(--mv-accent);
  font-size: clamp(2.2rem, 8vw, 4.4rem);
  line-height: 0.92;
}

.mv-retired-panel p {
  color: var(--mv-muted);
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .mv-game-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mv-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
}

@media (max-width: 860px) {
  .mv-section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .mv-step-list,
  .mv-pathways,
  .mv-trust-band,
  .mv-faq,
  .mv-game-info,
  .mv-guide-testing {
    grid-template-columns: 1fr;
  }

  .mv-step-list li + li {
    border-top: 1px solid var(--mv-line);
    border-left: 0;
  }

  .mv-trust-band ul {
    width: 100%;
  }

  .mv-footer {
    grid-template-columns: 1fr;
    padding-inline: 1rem;
  }

  .mv-footer small {
    white-space: normal;
  }

  .mv-game-info dl,
  .mv-guide-columns {
    grid-template-columns: 1fr;
  }

  .mv-game-safety {
    grid-column: auto;
  }

  .mv-game .mv-shell {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    width: min(100% - 1rem, 46rem);
    min-height: auto;
    padding: 0.5rem 0 1rem;
  }

  .mv-game .mv-stage-card,
  .mv-game[data-game="signal-trace"] .mv-stage-card {
    width: 100%;
    height: calc(100svh - 5.25rem);
    min-height: 25rem;
    max-height: 46rem;
  }

  #game-canvas {
    min-height: 0;
  }
}

@media (max-width: 720px) {
  .mv-topbar {
    align-items: center;
    flex-direction: row;
    gap: 0.35rem;
    min-height: 3.5rem;
    padding: 0.4rem 0.55rem;
  }

  .mv-brand {
    flex: 0 0 auto;
    gap: 0.4rem;
    font-size: 0.95rem;
  }

  .mv-brand-mark {
    width: 1.8rem;
    height: 1.8rem;
  }

  .mv-nav {
    flex-wrap: nowrap;
    justify-content: flex-end;
    gap: 0;
  }

  .mv-nav a {
    min-height: 2.2rem;
    padding: 0.5rem 0.48rem;
    font-size: 0.82rem;
  }

  .mv-hero {
    padding-top: 2.5rem;
  }

  .mv-hero h1,
  .mv-guide-hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.5rem);
  }

  .mv-orbit-board,
  .mv-orbit-board canvas {
    min-height: 24rem;
  }

  .mv-pathways {
    padding: 1.25rem;
  }

  .mv-pathway-links a {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .mv-trust-band ul {
    grid-template-columns: 1fr 1fr;
  }

  .mv-activity-list article {
    grid-template-columns: 1fr;
  }

  .mv-activity-list article > div:last-child {
    min-width: 0;
  }

  .mv-guide-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .mv-game .mv-stage-card,
  .mv-game[data-game="signal-trace"] .mv-stage-card {
    height: calc(100svh - 4.5rem);
    min-height: 24rem;
  }

  .mv-hud {
    inset: 0.5rem 0.5rem auto auto;
    width: min(15.5rem, calc(100% - 1rem));
    gap: 0.35rem;
  }

  .mv-hud span {
    min-height: 2.35rem;
    padding: 0.32rem 0.35rem;
    font-size: 0.61rem;
  }

  .mv-hud b {
    font-size: 0.88rem;
  }

  .mv-game-grid {
    grid-template-columns: 1fr;
  }

  .mv-camera {
    right: 0.55rem;
    bottom: 0.55rem;
    width: 5.75rem;
  }

  .mv-permission {
    padding: 0.55rem;
  }

  .mv-permission-card {
    max-height: calc(100% - 0.5rem);
    overflow-y: auto;
    padding: 0.85rem;
  }

  .mv-permission-card h1 {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }

  .mv-permission-card p {
    margin: 0.7rem 0 0;
    font-size: 0.86rem;
    line-height: 1.4;
  }

  .mv-permission-tip {
    margin-top: 0.7rem;
    padding: 0.6rem 0.7rem;
    font-size: 0.8rem;
  }

  .mv-actions {
    margin-top: 0.7rem;
  }

  .mv-actions .mv-button {
    min-height: 2.55rem;
    padding: 0.6rem 0.75rem;
    font-size: 0.82rem;
  }

  .mv-remote-card {
    padding: 1rem;
  }

  .mv-remote-qr {
    width: 210px;
    min-height: 210px;
  }
}

@media (max-width: 420px) {
  .mv-brand > span:last-child {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .mv-topbar {
    padding-inline: 0.45rem;
  }

  .mv-nav a {
    padding-inline: 0.42rem;
    font-size: 0.78rem;
  }

  .mv-hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: min(10.5rem, calc(100% - 1rem));
  }
}

@media (orientation: landscape) and (max-height: 600px) {
  .mv-topbar {
    min-height: 3.25rem;
    padding-block: 0.3rem;
  }

  .mv-game .mv-shell {
    width: calc(100% - 0.5rem);
    padding-top: 0.35rem;
  }

  .mv-game .mv-stage-card,
  .mv-game[data-game="signal-trace"] .mv-stage-card {
    height: calc(100svh - 4rem);
    min-height: 18rem;
    max-height: none;
  }

  .mv-hud {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    inset: 0.4rem 0.4rem auto auto;
    width: min(15rem, calc(100% - 0.8rem));
  }

  .mv-hud span {
    min-height: 2.4rem;
    padding: 0.3rem 0.45rem;
  }

  .mv-permission-card {
    width: min(42rem, 100%);
    padding: 0.6rem 0.8rem;
  }

  .mv-permission-card h1 {
    font-size: clamp(1.75rem, 6vw, 2.6rem);
  }

  .mv-permission-card p {
    display: none;
  }

  .mv-permission-tip {
    margin-top: 0.45rem;
    padding: 0.45rem 0.65rem;
    font-size: 0.75rem;
    line-height: 1.3;
  }

  .mv-actions {
    margin-top: 0.45rem;
  }

  .mv-actions .mv-button {
    min-height: 2.35rem;
    padding: 0.45rem 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Adventure shell: mission first, quiet stats, reachable controls. */
[hidden] { display: none !important; }
.mv-game.is-active .mv-shell { grid-template-columns: minmax(0, 1fr); width: min(90rem, calc(100% - 2rem)); }
.mv-game.is-active .mv-panel { display: none; }
.mv-game.is-active.has-help .mv-panel { display: block; max-width: 50rem; width: 100%; margin-inline: auto; }
.mv-stage-card:fullscreen { width: 100vw !important; height: 100dvh !important; min-height: 0 !important; max-height: none !important; border-radius: 0; }
.mv-stage-card:fullscreen #game-canvas { min-height: 0; }
.mv-mission { position: absolute; z-index: 5; inset: 12px 14px auto; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 7px 16px; padding: 10px 14px; border: 1px solid rgba(188,231,231,.2); border-radius: 14px; background: rgba(7,22,34,.9); pointer-events: none; }
.mv-mission div:first-child { min-width: 0; }
.mv-mission #mission-label { display: block; font-size: .65rem; color: #a7c4c9; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 3px; }
.mv-mission strong { display: block; font-size: clamp(.87rem, 1.4vw, 1.05rem); }
#mission-count { color: #ffe5a9; font-size: .83rem; font-weight: 800; text-align: right; max-width: 9rem; }
.mv-mission-progress { grid-column: 1 / -1; height: 5px; border-radius: 5px; background: #294251; overflow: hidden; }
.mv-mission-progress > span { display: block; width: 0; height: 100%; background: var(--mv-accent); transition: width 150ms ease; }
.mv-play-tools { position: absolute; z-index: 8; bottom: 12px; left: 50%; transform: translateX(-50%); display: flex; gap: 5px; padding: 5px; border: 1px solid rgba(172,209,218,.3); border-radius: 14px; background: rgba(6,20,31,.95); width: max-content; max-width: calc(100% - 16px); }
.mv-play-tools button, .mv-play-tools a { display: grid; place-items: center; min-height: 44px; padding: 8px 13px; border: 0; border-radius: 9px; background: transparent; color: #edf9fc; font: 750 .8rem "Avenir Next",sans-serif; cursor: pointer; text-decoration: none; }
.mv-play-tools button:hover, .mv-play-tools a:hover { background: #234552; }
.mv-play-tools button:disabled { color: #667d86; cursor: default; }
.mv-game .mv-hud { inset: auto 14px 82px auto; width: min(18rem, calc(100% - 28px)); grid-template-columns: repeat(4,minmax(0,1fr)); opacity: .9; }
.mv-game-message { position: absolute; bottom: 82px; left: 16px; right: 16px; z-index: 4; color: #e7f8f8; font-size: .8rem; font-weight: 700; text-align: center; pointer-events: none; text-shadow: 0 2px 4px #071018; }
.mv-game[data-game="reef-rescue"] .mv-game-message { bottom: 78px; }
.mv-game .mv-rescue-readout { top: 102px; left: 14px; }
.mv-game .mv-camera { bottom: 90px; }
.mv-game.is-timed .mv-game-message { bottom: 142px; }
.mv-pause-overlay { position: absolute; inset: 0; z-index: 7; display: grid; place-items: center; background: rgba(5,16,25,.8); padding: 1rem; }
.mv-pause-overlay > div { width: min(30rem,100%); padding: 1.5rem; border: 1px solid #3e636e; border-radius: 20px; background: #0c2634; text-align: center; }
.mv-pause-overlay h2 { margin: 0; font-size: 2rem; }
.mv-pause-overlay p { color: #bdd4d9; line-height: 1.5; }
.mv-pause-overlay .mv-button { margin: .4rem; }
.mv-pause-overlay a { display: block; padding: .8rem; color: #bdd4d9; }
.mv-skip-warmup { position: absolute; top: 98px; right: 14px; z-index: 5; padding: 12px; border: 1px solid #65898e; border-radius: 12px; color: #d4e9e9; background: #142d3b; cursor: pointer; min-height: 44px; }
.mv-permission-card h1 { font-size: clamp(1.8rem,4vw,3rem); line-height: 1.08; }
.mv-permission-card > p { margin: .65rem 0 0; }
.mv-permission-tip { margin-top: .5rem; }
.mv-round-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 12px; margin: 10px 0 4px; text-align: left; }
.mv-round-options label, .mv-camera-options label { font-size: .8rem; font-weight: 750; color: #b8d3d9; }
.mv-round-options select, .mv-camera-options select { width: 100%; min-height: 44px; margin-top: 5px; padding: 8px; border: 1px solid #41606e; border-radius: 10px; font: inherit; color: #f5fcff; background: #163343; }
.mv-round-options .mv-option { grid-column: 1; display: flex; align-items: center; gap: 8px; min-height: 44px; }
.mv-round-options input { width: 19px; height: 19px; accent-color: var(--mv-accent); }
.mv-camera-options { text-align: left; font-size: .75rem; color: #b8d3d9; padding: 8px 0; }
.mv-round-options .mv-camera-reach { grid-column: 2; min-width: 0; }
.mv-round-options .mv-camera-reach select { min-height: 40px; margin-top: 3px; padding: 6px 8px; }
.mv-permission:not(.is-result) #round-copy { display: none; }
.mv-permission:not(.is-result) .mv-permission-tip { margin-top: .35rem; padding: .5rem .65rem; font-size: .78rem; line-height: 1.35; }
.mv-camera-options p { font-size: .75rem; }
.mv-demo { position: relative; width: 150px; height: 58px; margin: 12px auto 0; border-radius: 35px; background: #173d4b; overflow: hidden; }
.mv-demo-target { position: absolute; top: 8px; left: 72px; font-size: 30px; color: #ffdc8f; }
.mv-demo-hand { position: absolute; top: 16px; left: 20px; font-size: 28px; color: #b5eef1; animation: mv-teach 3.5s ease-in-out infinite; }
.mv-demo-spark { position: absolute; top: 2px; left: 97px; color: #fff8d0; font-size: 25px; animation: mv-reward 3.5s ease-in-out infinite; }
@keyframes mv-teach { 0%,20%,100% { transform: translateX(0); } 50%,75% { transform: translateX(52px); } }
@keyframes mv-reward { 0%,40%,100% { opacity: 0; transform: scale(.4); } 50%,75% { opacity: 1; transform: scale(1); } }
.mv-permission-card > .mv-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
#keyboard-mode { order: -1; width: 100%; }
#start-camera, #phone-camera { flex: 1; background: #163343; color: #cbe4e9; border-color: #41606e; }
.mv-permission.is-result { align-items: end; background: linear-gradient(0deg, rgba(3,15,23,.68), rgba(3,15,23,.1)); padding-bottom: 90px; }
.mv-permission.is-result .mv-permission-card { background: rgba(8,29,40,.97); }
.mv-round-result p { color: #ffdc8f; font-size: .85rem; }
.mv-hero h1 { max-width: 15ch; font-size: clamp(3.1rem,6.5vw,6.5rem); line-height: .98; }
.mv-hero-tabs, .mv-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.mv-hero-tabs { padding: 10px 14px; background: #0b2533; }
.mv-hero-tabs button, .mv-filters button { min-height: 44px; padding: 10px 16px; border: 1px solid #365260; border-radius: 100px; color: #b8d1d7; background: #102c3b; font: 800 .8rem "Avenir Next",sans-serif; cursor: pointer; }
.mv-hero-tabs [aria-pressed="true"], .mv-filters [aria-pressed="true"] { background: #d0f4e6; color: #153b3d; border-color: #d0f4e6; }
.mv-filter-status { color: #a5bfc8; font-size: .85rem; margin: 16px 0 20px; }
.mv-game-card.is-completed .mv-card-action::before { content: '✓ Adventure complete'; font-size: .7rem; color: #a6e3c4; }
@media(max-width:720px) {
  .mv-adventure-trail { grid-template-columns: 1fr; gap: 12px; padding: 16px; }
  .mv-trail-rewards { max-width: none; }
  .mv-adventure-trail .mv-button { justify-content: space-between; width: 100%; }
  .mv-game.is-active .mv-shell { width: calc(100% - 12px); }
  .mv-mission { inset: 8px 8px auto; gap: 6px 8px; padding: 8px 10px; }
  .mv-mission strong { font-size: .82rem; line-height: 1.3; }
  #mission-count { font-size: .7rem; max-width: 6rem; }
  .mv-play-tools button, .mv-play-tools a { min-height: 44px; padding: 8px 7px; font-size: .68rem; }
  .mv-play-tools { gap: 1px; bottom: 8px; }
  .mv-game .mv-rescue-readout { top: 93px; left: 8px; }
  .mv-permission-card { padding: 14px; }
  .mv-permission-card h1 { font-size: 1.8rem; }
  .mv-permission-card p { font-size: .82rem; }
  .mv-permission.is-result { padding-bottom: 76px; }
  .mv-round-result .mv-button { min-height: 44px; padding: 10px; font-size: .78rem; }
  .mv-hero-tabs button { flex: 1; padding-inline: 8px; }
  .mv-hero { min-height: 0; }
}
@media(max-width:360px) {
  .mv-round-options { gap: 6px 8px; }
  .mv-round-options label { font-size: .72rem; }
  .mv-round-options select { min-height: 40px; padding: 6px; font-size: .78rem; }
  .mv-chapter-choice { grid-template-columns: auto minmax(0,1fr); }
  .mv-chapter-choice small { grid-column: 1/-1; }
  .mv-permission-card { padding: 12px; }
  .mv-permission:not(.is-result) .mv-permission-tip { margin-top: .3rem; padding: .4rem .5rem; font-size: .72rem; }
  .mv-round-options .mv-option { min-height: 40px; }
  .mv-trace-custom > div:first-of-type { grid-template-columns: 1fr; }
  .mv-trace-custom > div:first-of-type button { width: 100%; }
}
@media(orientation:landscape) and (max-height:600px) {
  .mv-game.is-active .mv-shell { width: calc(100% - 8px); }
  .mv-mission { top: 4px; padding-block: 6px; }
  .mv-demo { display: none; }
  .mv-round-options { margin: 6px 0; gap: 6px 12px; }
  .mv-round-options .mv-option { grid-column: auto; }
  .mv-permission:not(.is-result) { padding: .35rem; }
  .mv-permission:not(.is-result) .mv-permission-card { padding: .45rem .65rem; }
  .mv-permission:not(.is-result) .mv-permission-card h1 { font-size: 1.4rem; }
  .mv-permission:not(.is-result) .mv-permission-tip { padding: .25rem .45rem; margin-top: .2rem; font-size: .66rem; }
  .mv-permission:not(.is-result) .mv-chapter-choice small { display: none; }
  .mv-permission:not(.is-result) .mv-round-options { margin: .25rem 0; gap: 3px 8px; }
  .mv-permission:not(.is-result) .mv-round-options label { font-size: .66rem; }
  .mv-permission:not(.is-result) .mv-round-options select { min-height: 34px; margin-top: 2px; padding: 4px 6px; font-size: .72rem; }
  .mv-permission:not(.is-result) .mv-round-options .mv-option { min-height: 34px; }
  .mv-permission:not(.is-result) .mv-round-options input { width: 16px; height: 16px; }
  .mv-permission:not(.is-result) .mv-actions { margin-top: .25rem; }
  .mv-permission:not(.is-result) .mv-actions .mv-button { min-height: 2rem; padding: .25rem .5rem; font-size: .7rem; }
  .mv-permission-card { max-width: 40rem; }
  .mv-permission-card > .mv-actions { flex-wrap: nowrap; }
  #keyboard-mode { width: auto; flex: 1.3; }
  .mv-permission.is-result { align-items: center; padding-bottom: 68px; }
  .mv-permission.is-result .mv-permission-card { width: min(34rem, 90%); }
  .mv-game .mv-rescue-readout { top: 88px; }
}
.mv-reset-progress { border: 0; background: none; color: #a1bec7; text-decoration: underline; padding: 16px 0; cursor: pointer; font: inherit; font-size: .8rem; }
.mv-stage-card { scroll-margin-top: 5.25rem; }
@media(max-width:720px) { .mv-stage-card { scroll-margin-top: 4rem; } }
@media(orientation:landscape) and (max-height:600px) { .mv-stage-card { scroll-margin-top: 3.5rem; } }
.mv-orbit-caption { bottom: 82px; }
.mv-hero-tabs { position: absolute; bottom: 0; left: 0; right: 0; justify-content: center; }

.mv-permission-card { max-height: 100%; overflow-y: auto; }
.mv-permission:not(.is-result) { padding-bottom: 76px; }
.mv-demo[data-action="brush"] .mv-demo-hand { animation-name: mv-scrub; }
.mv-demo[data-action="volley"] .mv-demo-hand { animation-name: mv-swing; }
@keyframes mv-scrub { 0%,100% { transform: translateX(0); } 25%,45%,65%,85% { transform: translateX(60px); } 35%,55%,75% { transform: translateX(35px); } }
@keyframes mv-swing { 0%,100% { transform: translate(0,8px); } 40% { transform: translate(45px,8px); } 65% { transform: translate(55px,-12px); } }
@media (prefers-reduced-motion: reduce) {
  .mv-demo-hand, .mv-demo-spark { animation: none !important; }
  .mv-demo-spark { opacity: 1; }
  .mv-mission-progress > span { transition: none; }
}

/* Keep the finished world visible, with a compact result and a quiet next step. */
.mv-permission.is-result {
  justify-items: end;
  align-items: end;
  padding: 100px 20px 88px;
  background: linear-gradient(0deg, rgba(3,15,23,.22), transparent 45%);
  pointer-events: none;
}
.mv-permission.is-result .mv-permission-card {
  width: min(24rem, 100%);
  padding: 20px;
  pointer-events: auto;
  border-color: #648787;
  box-shadow: 0 8px 30px rgba(0,0,0,.3);
}
.mv-permission.is-result h1 { font-size: clamp(1.45rem, 2.5vw, 2rem); line-height: 1.15; }
.mv-permission.is-result p { display: block; }
.mv-permission.is-result .mv-result-label {
  margin: 0 0 8px;
  color: #c3f0cf;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.mv-permission.is-result #round-copy { font-size: .85rem; line-height: 1.45; }
.mv-round-result #result-progress { margin-top: 10px; color: #ffdc8f; font-size: .82rem; }
.mv-round-result .mv-actions { gap: 8px; margin-top: 12px; }
.mv-round-result .mv-button { min-height: 44px; padding: 10px 12px; font-size: .8rem; }
.mv-result-next { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; padding-top: 12px; border-top: 1px solid #34515d; text-align: right; }
.mv-result-next button, .mv-result-next a { min-height: 44px; padding: 4px 0; border: 0; background: none; color: #bdd5da; font: 700 .78rem "Avenir Next",sans-serif; text-decoration: none; cursor: pointer; }
.mv-result-next button { text-decoration: underline; text-align: left; }
.mv-result-next a:hover { color: #fff; }
.mv-result-next a span { display: block; margin-bottom: 4px; color: #86a8af; font-size: .65rem; text-transform: uppercase; letter-spacing: .1em; }
.mv-show-results { position: absolute; z-index: 8; bottom: 88px; left: 50%; transform: translateX(-50%); min-height: 44px; padding: 10px 18px; border: 1px solid #77949b; border-radius: 14px; background: #0c2634; color: #edf9fc; font: 800 .85rem "Avenir Next",sans-serif; cursor: pointer; }
.mv-game.is-finished .mv-game-message, .mv-game.is-finished .mv-hud, .mv-game.is-finished .mv-camera { display: none; }
@media(max-width:720px) {
  .mv-permission.is-result { justify-items: center; padding: 88px 10px 74px; }
  .mv-permission.is-result .mv-permission-card { padding: 14px; }
  .mv-permission.is-result h1 { font-size: 1.4rem; }
  .mv-result-next { margin-top: 10px; padding-top: 8px; }
  .mv-show-results { bottom: 76px; }
}
@media(orientation:landscape) and (max-height:600px) {
  .mv-permission.is-result { justify-items: end; padding: 0 12px 76px; }
  .mv-permission.is-result .mv-permission-card { display: grid; grid-template-columns: 1fr 1fr; column-gap: 18px; width: 100%; max-width: none; padding: 10px 14px; background: rgb(8,29,40); text-align: left; }
  .mv-permission.is-result .mv-result-label, .mv-permission.is-result h1, .mv-permission.is-result #round-copy { grid-column: 1; }
  .mv-permission.is-result .mv-round-result { grid-column: 2; grid-row: 1 / span 3; }
  .mv-permission.is-result h1 { font-size: 1.25rem; }
  .mv-permission.is-result .mv-result-label { margin-bottom: 4px; font-size: .6rem; }
  .mv-permission.is-result #round-copy { font-size: .75rem; align-self: start; }
  .mv-permission.is-result #result-progress { margin-top: 5px; }
  .mv-round-result .mv-actions { margin-top: 6px; }
  .mv-result-next { margin-top: 6px; padding-top: 4px; }
}
/* Browsers without element fullscreen still get a viewport-filling stage. */
body.is-expanded { overflow: hidden; }
.mv-game.is-expanded .mv-stage-card {
  position: fixed;
  inset: 0;
  z-index: 200;
  width: 100vw !important;
  height: 100vh !important;
  height: 100dvh !important;
  min-height: 0 !important;
  max-height: none !important;
  margin: 0;
  border: 0;
  border-radius: 0;
}
.mv-game.is-expanded #game-canvas { min-height: 0; }
.mv-stage-card:fullscreen, .mv-stage-card:-webkit-full-screen { padding: 0; border: 0; }
.mv-stage-card:-webkit-full-screen { width: 100vw !important; height: 100vh !important; height: 100dvh !important; min-height: 0 !important; max-height: none !important; border-radius: 0; }
.mv-stage-card:-webkit-full-screen #game-canvas { min-height: 0; }