@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/variable/pretendardvariable.css");
@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600&family=Merriweather:wght@400;700;900&display=swap");

:root {
  --mumu-brand: 207 53% 38%;
  --mumu-brand-strong: 207 58% 29%;
  --mumu-bg: 0 0% 100%;
  --mumu-bg-subtle: 60 6% 97%;
  --mumu-bg-muted: 220 9% 96%;
  --mumu-text: 0 0% 7%;
  --mumu-text-secondary: 215 16% 43%;
  --mumu-text-muted: 215 14% 62%;
  --mumu-border: 220 13% 89%;
  --mumu-border-strong: 0 0% 7%;
  --mumu-shadow: 0 18px 50px hsl(220 20% 10% / 0.12);
  --mumu-font-sans: "Pretendard Variable", Pretendard, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mumu-font-serif: "Merriweather", Georgia, "Times New Roman", serif;
  --mumu-font-mono: "JetBrains Mono", "D2Coding", monospace;
  --mumu-radius-sm: 0.375rem;
  --mumu-radius-md: 0.625rem;
  --mumu-radius-lg: 1rem;
  --mumu-shell-height: 4rem;

  /* Keep legacy pages on the same palette while they are migrated. */
  --bg-primary: hsl(var(--mumu-bg));
  --bg-secondary: hsl(var(--mumu-bg-subtle));
  --bg-tertiary: hsl(var(--mumu-bg-muted));
  --bg-elevated: hsl(var(--mumu-bg));
  --text-primary: hsl(var(--mumu-text));
  --text-secondary: hsl(var(--mumu-text-secondary));
  --text-tertiary: hsl(var(--mumu-text-muted));
  --border-primary: hsl(var(--mumu-border));
  --border-secondary: hsl(var(--mumu-border));
  --accent-primary: hsl(var(--mumu-brand));
  --accent-hover: hsl(var(--mumu-brand-strong));
  --accent-active: hsl(var(--mumu-brand-strong));
  --gradient-accent: linear-gradient(
    135deg,
    hsl(var(--mumu-brand)),
    hsl(188 54% 42%)
  );
}

[data-theme="dark"] {
  --mumu-brand: 202 78% 67%;
  --mumu-brand-strong: 202 86% 76%;
  --mumu-bg: 222 47% 8%;
  --mumu-bg-subtle: 222 47% 11%;
  --mumu-bg-muted: 222 47% 14%;
  --mumu-text: 210 40% 96%;
  --mumu-text-secondary: 215 20% 65%;
  --mumu-text-muted: 215 16% 48%;
  --mumu-border: 215 27% 20%;
  --mumu-border-strong: 210 40% 96%;
  --mumu-shadow: 0 22px 60px hsl(222 60% 2% / 0.48);
}

html[data-site-system="v1"] {
  background: hsl(var(--mumu-bg));
  color-scheme: light;
  overflow-x: clip;
  scroll-padding-top: calc(var(--mumu-shell-height) + 1rem);
}

html[data-site-system="v1"][data-theme="dark"] {
  color-scheme: dark;
}

html[data-site-system="v1"],
html[data-site-system="v1"] body {
  min-width: 0;
}

body.mumulab-site-full {
  background: hsl(var(--mumu-bg)) !important;
  color: hsl(var(--mumu-text)) !important;
  font-family: var(--mumu-font-sans) !important;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition:
    background-color 180ms ease,
    color 180ms ease;
}

body.mumulab-site-full :where(button, input, textarea, select) {
  font: inherit;
}

body.mumulab-site-full :where(h1, h2, h3):not(.mumulab-site-brand) {
  text-wrap: balance;
}

body.mumulab-site-full :where(p, li) {
  text-wrap: pretty;
}

body.mumulab-site-full :where(a, button, input, textarea, select):focus-visible,
.mumulab-site-header :where(a, button):focus-visible,
.mumulab-site-dock :where(a, button):focus-visible {
  outline: 3px solid hsl(var(--mumu-brand) / 0.42) !important;
  outline-offset: 3px;
}

[data-mumulab-legacy-chrome] {
  display: none !important;
}

.mumulab-skip-link {
  position: fixed;
  z-index: 2147483647;
  top: 0.5rem;
  left: 0.75rem;
  transform: translateY(-160%);
  border-radius: var(--mumu-radius-sm);
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
  padding: 0.65rem 0.9rem;
  font-family: var(--mumu-font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
}

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

.mumulab-site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  width: 100%;
  min-height: var(--mumu-shell-height);
  border-bottom: 1px solid hsl(var(--mumu-border));
  background: hsl(var(--mumu-bg) / 0.92);
  color: hsl(var(--mumu-text));
  font-family: var(--mumu-font-sans);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
}

.mumulab-site-header__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.25rem;
  width: min(100% - 2rem, 80rem);
  min-height: var(--mumu-shell-height);
  margin: 0 auto;
}

.mumulab-site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: hsl(var(--mumu-text));
  font-family: var(--mumu-font-sans);
  font-size: 0.9rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-decoration: none;
  white-space: nowrap;
}

.mumulab-site-brand__mark {
  display: grid;
  width: 1.85rem;
  height: 1.85rem;
  place-items: center;
  border-radius: 50%;
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
  font-family: var(--mumu-font-serif);
  font-size: 0.84rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.mumulab-site-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.mumulab-site-nav::-webkit-scrollbar {
  display: none;
}

.mumulab-site-nav__link {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  border: 1px solid transparent;
  border-radius: var(--mumu-radius-md);
  color: hsl(var(--mumu-text-secondary));
  padding: 0.55rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition:
    color 150ms ease,
    background-color 150ms ease,
    border-color 150ms ease;
}

.mumulab-site-nav__link:hover {
  border-color: hsl(var(--mumu-border));
  background: hsl(var(--mumu-bg-subtle));
  color: hsl(var(--mumu-text));
}

.mumulab-site-nav__link[aria-current="page"] {
  border-color: hsl(var(--mumu-brand) / 0.25);
  background: hsl(var(--mumu-brand) / 0.1);
  color: hsl(var(--mumu-brand));
}

.mumulab-site-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mumulab-site-theme {
  display: inline-grid;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  cursor: pointer;
  place-items: center;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: 50%;
  background: hsl(var(--mumu-bg));
  color: hsl(var(--mumu-text));
  box-shadow: none;
  font-family: var(--mumu-font-sans);
  font-size: 1rem;
  line-height: 1;
  transition:
    transform 150ms ease,
    background-color 150ms ease,
    border-color 150ms ease;
}

.mumulab-site-theme:hover {
  transform: translateY(-1px);
  border-color: hsl(var(--mumu-brand) / 0.55);
  background: hsl(var(--mumu-bg-subtle));
}

/* The full shell owns the theme control on migrated blog pages. */
body.mumulab-site-full > .mumulab-theme-toggle {
  display: none !important;
}

.mumulab-site-dock {
  position: fixed;
  z-index: 2147483000;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  min-height: var(--mumu-shell-height);
  border: 0;
  border-bottom: 1px solid hsl(var(--mumu-border));
  border-radius: 0;
  background: hsl(var(--mumu-bg) / 0.94);
  color: hsl(var(--mumu-text));
  padding: 0.45rem max(0.75rem, env(safe-area-inset-right)) 0.45rem
    max(0.75rem, env(safe-area-inset-left));
  box-shadow: 0 10px 30px hsl(220 20% 10% / 0.07);
  font-family: var(--mumu-font-sans);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
}

body.mumulab-site-compact {
  padding-top: var(--mumu-shell-height) !important;
}

.mumulab-site-dock__home,
.mumulab-site-dock__back {
  display: inline-flex;
  min-height: 2.35rem;
  align-items: center;
  border-radius: 999px;
  color: hsl(var(--mumu-text));
  padding: 0.45rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.mumulab-site-dock__home {
  min-width: 7.2rem;
  justify-content: center;
  border-radius: var(--mumu-radius-sm);
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
  letter-spacing: 0.08em;
}

.mumulab-site-dock__context {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.7rem;
}

.mumulab-site-dock__mode {
  flex: 0 0 auto;
  color: hsl(var(--mumu-brand));
  font-family: var(--mumu-font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mumulab-site-dock__title {
  overflow: hidden;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.78rem;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mumulab-site-dock__back:hover {
  background: hsl(var(--mumu-bg-muted));
}

.mumulab-site-dock .mumulab-site-theme {
  width: 2.55rem;
  height: 2.55rem;
  border: 0;
}

/* Document system — About, governance, contact, support */
body.mumulab-site-full[data-mumulab-page="document"] {
  width: 100%;
  max-width: 100%;
  margin: 0 !important;
  overflow-x: hidden !important;
  background:
    linear-gradient(
      90deg,
      transparent calc(50% - 40rem),
      hsl(var(--mumu-border) / 0.45) calc(50% - 40rem),
      hsl(var(--mumu-border) / 0.45) calc(50% - 40rem + 1px),
      transparent calc(50% - 40rem + 1px),
      transparent calc(50% + 40rem - 1px),
      hsl(var(--mumu-border) / 0.45) calc(50% + 40rem - 1px),
      hsl(var(--mumu-border) / 0.45) calc(50% + 40rem),
      transparent calc(50% + 40rem)
    ),
    hsl(var(--mumu-bg)) !important;
}

body[data-mumulab-page="document"] :where(*, *::before, *::after) {
  box-sizing: border-box;
}

body[data-mumulab-page="document"]
  > :is(
    .about-container,
    .contact-container,
    .policy-container,
    .container
  ) {
  width: min(100% - 2rem, 72rem) !important;
  max-width: 72rem !important;
  margin: 0 auto !important;
  padding: clamp(3.5rem, 8vw, 7.5rem) clamp(0rem, 3vw, 2rem) 6rem !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  color: hsl(var(--mumu-text)) !important;
  line-height: 1.75 !important;
}

body[data-mumulab-page="document"] :where(.page-header) {
  margin-bottom: 2rem !important;
  text-align: left !important;
}

body[data-mumulab-page="document"] :where(h1, .page-title) {
  max-width: 14ch;
  margin: 0 0 1.25rem !important;
  border: 0 !important;
  color: hsl(var(--mumu-text)) !important;
  font-family: var(--mumu-font-serif) !important;
  font-size: clamp(2.75rem, 7vw, 5.8rem) !important;
  font-weight: 900 !important;
  letter-spacing: -0.055em !important;
  line-height: 0.98 !important;
  text-align: left !important;
}

body[data-mumulab-page="document"] :where(h1, .page-title)::before {
  display: block;
  margin-bottom: 1.4rem;
  color: hsl(var(--mumu-brand));
  content: "MUMULAB / DOCUMENT";
  font-family: var(--mumu-font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.3;
}

body[data-mumulab-document="about"] :where(h1, .page-title)::before {
  content: "ABOUT / IDENTITY";
}

body[data-mumulab-document="contact"] :where(h1, .page-title)::before {
  content: "STUDIO / CONTACT";
}

body[data-mumulab-document="privacy"] :where(h1, .page-title)::before {
  content: "GOVERNANCE / PRIVACY";
}

body[data-mumulab-document="terms"] :where(h1, .page-title)::before {
  content: "GOVERNANCE / TERMS";
}

body[data-mumulab-document="faq"] :where(h1, .page-title)::before {
  content: "ABOUT / FAQ";
}

body[data-mumulab-document="sitemap"] :where(h1, .page-title)::before {
  content: "ABOUT / SITE MAP";
}

body[data-mumulab-document="support"] :where(h1, .page-title)::before {
  content: "STUDIO / SUPPORT";
}

body[data-mumulab-page="document"]
  :where(.intro, .page-subtitle, .update-date) {
  max-width: 48rem;
  margin: 0 0 3.5rem !important;
  color: hsl(var(--mumu-text-secondary)) !important;
  font-size: clamp(1rem, 2vw, 1.2rem) !important;
  line-height: 1.7 !important;
  text-align: left !important;
}

body[data-mumulab-page="document"] :where(.content, .support-content) {
  max-width: 54rem;
  margin: 0 !important;
}

body[data-mumulab-page="document"] :where(h2) {
  margin: 4.5rem 0 1.2rem !important;
  padding: 0 0 0.8rem !important;
  border: 0 !important;
  border-bottom: 1px solid hsl(var(--mumu-border)) !important;
  color: hsl(var(--mumu-text)) !important;
  font-size: clamp(1.45rem, 3vw, 2.15rem) !important;
  font-weight: 780 !important;
  letter-spacing: -0.035em !important;
  line-height: 1.2 !important;
}

body[data-mumulab-page="document"] :where(h3, h4) {
  color: hsl(var(--mumu-text)) !important;
  letter-spacing: -0.02em !important;
}

body[data-mumulab-page="document"] :where(p, li, td) {
  color: hsl(var(--mumu-text-secondary)) !important;
}

body[data-mumulab-page="document"] :where(strong, th, a) {
  color: hsl(var(--mumu-text)) !important;
}

body[data-mumulab-page="document"] a:not(.mumulab-site-nav__link) {
  text-decoration-color: hsl(var(--mumu-brand) / 0.5);
  text-underline-offset: 0.2em;
}

body[data-mumulab-page="document"]
  :where(
    .highlight-box,
    .contact-card,
    .inquiry-card,
    .faq-item,
    .response-time,
    .stat-card,
    .feature-item,
    .cta-box,
    .donation-card,
    .support-card,
    .contact-info,
    .intro-section,
    .sitemap-section
  ) {
  border: 1px solid hsl(var(--mumu-border)) !important;
  border-left: 1px solid hsl(var(--mumu-border)) !important;
  border-radius: var(--mumu-radius-md) !important;
  background: hsl(var(--mumu-bg-subtle)) !important;
  color: hsl(var(--mumu-text)) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  transform: none !important;
}

body[data-mumulab-page="document"] .contact-card .contact-info {
  border: 0 !important;
  background: transparent !important;
  padding: 0 !important;
}

body[data-mumulab-page="document"]
  :where(.highlight-box, .cta-box, .intro-section) {
  padding: clamp(1.25rem, 3vw, 2rem) !important;
}

body[data-mumulab-page="document"]
  :where(.contact-card, .inquiry-card, .faq-item, .stat-card, .feature-item) {
  padding: 1.15rem !important;
}

body[data-mumulab-page="document"]
  :where(.stat-number, .contact-icon, .feature-icon, .inquiry-icon) {
  color: hsl(var(--mumu-brand)) !important;
  filter: grayscale(1);
}

body[data-mumulab-page="document"] :where(table) {
  display: block;
  width: 100% !important;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse !important;
}

body[data-mumulab-page="document"] :where(th, td) {
  min-width: 10rem;
  border-color: hsl(var(--mumu-border)) !important;
  background: transparent !important;
}

body[data-mumulab-page="document"] :where(.cta-button, .button) {
  display: inline-flex !important;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--mumu-text)) !important;
  border-radius: var(--mumu-radius-sm) !important;
  background: hsl(var(--mumu-text)) !important;
  color: hsl(var(--mumu-bg)) !important;
  padding: 0.7rem 1rem !important;
  box-shadow: none !important;
  text-decoration: none !important;
}

/* Editorial Lab — canonical hub language */
body.mumulab-site-full[data-mumulab-page] {
  width: 100%;
  max-width: 100%;
  margin: 0 !important;
  overflow-x: hidden !important;
}

body.mumulab-site-full[data-mumulab-page] :where(*, *::before, *::after) {
  box-sizing: border-box;
}

.mumu-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0;
  color: hsl(var(--mumu-text-secondary));
  font-family: var(--mumu-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.mumu-eyebrow > span {
  color: hsl(var(--mumu-brand));
}

.mumu-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.mumu-button,
.mumu-card-action {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-sm);
  background: hsl(var(--mumu-bg));
  color: hsl(var(--mumu-text));
  padding: 0.72rem 1rem;
  font-size: 0.84rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.mumu-button:hover,
.mumu-card-action:hover {
  border-color: hsl(var(--mumu-brand));
  color: hsl(var(--mumu-brand));
  transform: translateY(-1px);
}

.mumu-button--primary {
  border-color: hsl(var(--mumu-text));
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
}

.mumu-button--primary:hover {
  border-color: hsl(var(--mumu-brand));
  background: hsl(var(--mumu-brand));
  color: white;
}

.mumu-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(14rem, 0.6fr);
  align-items: end;
  gap: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--mumu-border-strong));
}

.mumu-section-heading h2 {
  margin: 0.65rem 0 0;
  color: hsl(var(--mumu-text));
  font-size: clamp(1.8rem, 3.4vw, 3.3rem);
  font-weight: 760;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.mumu-section-heading > p {
  max-width: 28rem;
  margin: 0;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.92rem;
  line-height: 1.65;
}

/* Home */
.mumu-home {
  width: min(100% - 2rem, 80rem);
  margin: 0 auto;
}

.mumu-home-hero {
  position: relative;
  display: grid;
  min-height: min(50rem, calc(100svh - var(--mumu-shell-height)));
  grid-template-columns: minmax(0, 1.25fr) minmax(19rem, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}

.mumu-home-hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(hsl(var(--mumu-border) / 0.45) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--mumu-border) / 0.45) 1px, transparent 1px);
  background-position: center;
  background-size: 5rem 5rem;
  content: "";
  mask-image: linear-gradient(to bottom, transparent, black 24%, black 72%, transparent);
  opacity: 0.45;
}

.mumu-home-hero__copy h1 {
  margin: 1.35rem 0 1.5rem;
  color: hsl(var(--mumu-text));
  font-family: var(--mumu-font-sans);
  font-size: clamp(3.15rem, 7vw, 6.8rem);
  font-weight: 780;
  letter-spacing: -0.075em;
  line-height: 0.94;
}

.mumu-home-hero__copy h1 em {
  color: hsl(var(--mumu-brand));
  font-style: normal;
}

.mumu-home-hero__lede {
  max-width: 39rem;
  margin: 0 0 2rem;
  color: hsl(var(--mumu-text-secondary));
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  line-height: 1.8;
}

.mumu-system-card {
  overflow: hidden;
  border: 1px solid hsl(var(--mumu-border-strong));
  border-radius: var(--mumu-radius-lg);
  background: hsl(220 18% 8%);
  color: hsl(0 0% 96%);
  box-shadow: var(--mumu-shadow);
}

.mumu-system-card__head {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid hsl(0 0% 100% / 0.16);
  padding: 0.85rem 1rem;
  color: hsl(0 0% 72%);
  font-family: var(--mumu-font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
}

.mumu-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: hsl(145 60% 68%);
}

.mumu-status i {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 0.2rem hsl(145 60% 50% / 0.13);
}

.mumu-system-card__title {
  margin: 0;
  padding: 2rem 1.25rem 2.25rem;
  font-family: var(--mumu-font-serif);
  font-size: clamp(2rem, 3.2vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.mumu-system-card__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-block: 1px solid hsl(0 0% 100% / 0.16);
}

.mumu-system-card__stats div {
  padding: 1rem;
}

.mumu-system-card__stats div + div {
  border-left: 1px solid hsl(0 0% 100% / 0.16);
}

.mumu-system-card__stats dt {
  min-height: 2.1em;
  color: hsl(0 0% 60%);
  font-family: var(--mumu-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  line-height: 1.25;
}

.mumu-system-card__stats dd {
  margin: 0.4rem 0 0;
  font-family: var(--mumu-font-mono);
  font-size: 1.5rem;
  font-weight: 600;
}

.mumu-system-card__note {
  margin: 0;
  padding: 1.1rem 1.25rem 1.25rem;
  color: hsl(0 0% 68%);
  font-size: 0.78rem;
  line-height: 1.6;
}

.mumu-portfolio-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid hsl(var(--mumu-border));
}

.mumu-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.5rem;
}

.mumu-portfolio-card {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: 15rem;
  grid-column: span 4;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg-subtle));
  color: hsl(var(--mumu-text));
  padding: 1.1rem;
  text-decoration: none;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.mumu-portfolio-card::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(
      180deg,
      hsl(var(--mumu-bg-subtle) / 0.18) 0%,
      hsl(var(--mumu-bg-subtle) / 0.62) 54%,
      hsl(var(--mumu-bg-subtle) / 0.98) 100%
    ),
    linear-gradient(
      90deg,
      hsl(var(--mumu-bg-subtle) / 0.35) 0%,
      transparent 64%
    );
  content: "";
  pointer-events: none;
}

.mumu-portfolio-card > :not(.mumu-portfolio-card__media):not(b) {
  position: relative;
  z-index: 2;
}

.mumu-portfolio-card__media {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.mumu-portfolio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: grayscale(0.72) saturate(0.62) contrast(0.9);
  opacity: 0.34;
  transform: scale(1.025);
  transition:
    filter 260ms ease,
    opacity 260ms ease,
    transform 420ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

.mumu-portfolio-card:hover {
  border-color: hsl(var(--mumu-brand));
  box-shadow: 0 16px 34px hsl(var(--mumu-text) / 0.09);
  transform: translateY(-3px);
}

.mumu-portfolio-card:hover .mumu-portfolio-card__media img {
  filter: grayscale(0.35) saturate(0.82) contrast(0.96);
  opacity: 0.4;
  transform: scale(1.055);
}

.mumu-portfolio-card--wide {
  grid-column: span 8;
}

.mumu-portfolio-card--dark {
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
}

.mumu-portfolio-card--dark::after {
  background:
    linear-gradient(
      180deg,
      hsl(var(--mumu-text) / 0.14) 0%,
      hsl(var(--mumu-text) / 0.72) 56%,
      hsl(var(--mumu-text) / 0.98) 100%
    ),
    linear-gradient(90deg, hsl(var(--mumu-text) / 0.42), transparent 70%);
}

.mumu-portfolio-card--dark .mumu-portfolio-card__media img {
  filter: saturate(0.72) brightness(0.78) contrast(1.04);
  opacity: 0.58;
}

.mumu-portfolio-card--dark:hover .mumu-portfolio-card__media img {
  filter: saturate(0.9) brightness(0.84) contrast(1.06);
  opacity: 0.68;
}

.mumu-portfolio-card[data-portfolio-link="signal"] .mumu-portfolio-card__media img {
  object-position: center 48%;
}

.mumu-portfolio-card[data-portfolio-link="learn"] .mumu-portfolio-card__media img {
  object-position: 58% center;
}

.mumu-portfolio-card[data-portfolio-link="tools"] .mumu-portfolio-card__media img {
  object-position: 53% center;
}

.mumu-portfolio-card[data-portfolio-link="studio"] .mumu-portfolio-card__media img {
  object-position: 62% center;
}

.mumu-portfolio-card[data-portfolio-link="os"] .mumu-portfolio-card__media img {
  object-position: center 42%;
}

.mumu-portfolio-card__index,
.mumu-portfolio-card__label,
.mumu-portfolio-card__meta {
  font-family: var(--mumu-font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.06em;
}

.mumu-portfolio-card__index {
  color: hsl(var(--mumu-brand));
}

.mumu-portfolio-card__label {
  align-self: end;
  margin-bottom: 0.55rem;
  color: currentColor;
  opacity: 0.62;
}

.mumu-portfolio-card strong {
  align-self: end;
  max-width: 15em;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  letter-spacing: -0.035em;
  line-height: 1.18;
}

.mumu-portfolio-card__meta {
  margin-top: 1rem;
  color: currentColor;
  opacity: 0.56;
}

.mumu-portfolio-card b {
  position: absolute;
  z-index: 2;
  top: 1rem;
  right: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
}

/* Tools and Learn directories */
.mumu-directory {
  width: min(100% - 2rem, 80rem) !important;
  max-width: 80rem !important;
  margin: 0 auto !important;
  padding: 0 0 clamp(4rem, 8vw, 7rem) !important;
}

.mumu-directory .page-header,
.mumu-directory__hero {
  display: grid;
  min-height: 26rem;
  align-content: end;
  justify-items: start;
  border-bottom: 1px solid hsl(var(--mumu-border-strong));
  margin: 0 !important;
  padding: clamp(4rem, 9vw, 7rem) 0 2rem;
  text-align: left !important;
}

.mumu-directory .page-title,
.mumu-directory__hero h1 {
  max-width: 12em;
  margin: 1.1rem 0 1rem;
  background: none !important;
  color: hsl(var(--mumu-text)) !important;
  font-family: var(--mumu-font-sans) !important;
  font-size: clamp(3rem, 6.5vw, 6.4rem) !important;
  font-weight: 780 !important;
  letter-spacing: -0.07em;
  line-height: 0.96;
  -webkit-text-fill-color: currentColor !important;
}

.mumu-directory .page-subtitle {
  max-width: 40rem;
  margin: 0;
  color: hsl(var(--mumu-text-secondary));
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.7;
}

.mumu-directory__hero-grid {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1.3fr) minmax(18rem, 0.7fr);
  align-items: end;
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: 1rem;
}

.mumu-directory__hero h1 {
  margin-bottom: 0;
}

.mumu-directory__hero-grid > div > p {
  margin: 0;
  color: hsl(var(--mumu-text-secondary));
  font-size: 1rem;
  line-height: 1.75;
}

.mumu-directory__meta {
  margin: 1.75rem 0 0;
  border-top: 1px solid hsl(var(--mumu-border));
}

.mumu-directory__meta div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid hsl(var(--mumu-border));
}

.mumu-directory__meta dt,
.mumu-directory__meta dd {
  margin: 0;
  font-family: var(--mumu-font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
}

.mumu-directory__meta dt {
  color: hsl(var(--mumu-brand));
}

.mumu-directory__meta dd {
  color: hsl(var(--mumu-text-secondary));
}

.mumu-directory__section {
  padding-top: clamp(4rem, 7vw, 6rem);
}

body[data-mumulab-page="tools"] .section-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.55fr);
  align-items: end;
  gap: 2rem;
  border-bottom: 1px solid hsl(var(--mumu-border-strong));
  margin: 0 0 1.5rem !important;
  padding-bottom: 1.35rem;
  text-align: left !important;
}

body[data-mumulab-page="tools"] .section-header .mumu-eyebrow {
  grid-column: 1 / -1;
}

body[data-mumulab-page="tools"] .section-title {
  margin: 0;
  background: none !important;
  color: hsl(var(--mumu-text)) !important;
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.05;
  -webkit-text-fill-color: currentColor !important;
}

body[data-mumulab-page="tools"] .section-subtitle {
  margin: 0;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.9rem;
  line-height: 1.65;
}

body[data-mumulab-page="tools"] .apps-grid {
  display: grid;
  max-width: none;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  counter-reset: tool-item;
}

body[data-mumulab-page="tools"] .app-card {
  counter-increment: tool-item;
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 20rem;
  grid-template-rows: auto 1fr auto;
  align-items: start;
  justify-items: start;
  appearance: none;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg-subtle));
  color: hsl(var(--mumu-text));
  overflow: hidden;
  padding: 0;
  text-align: left;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

body[data-mumulab-page="tools"] .app-card::before {
  position: absolute;
  z-index: 2;
  top: 0.75rem;
  left: 0.75rem;
  min-width: 2.15rem;
  border: 1px solid hsl(0 0% 100% / 0.2);
  background: hsl(222 47% 8% / 0.82);
  color: hsl(210 40% 96%);
  padding: 0.35rem 0.45rem;
  backdrop-filter: blur(10px);
  color: hsl(var(--mumu-brand));
  content: counter(tool-item, decimal-leading-zero);
  font-family: var(--mumu-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

body[data-mumulab-page="tools"] .app-card::after {
  position: absolute;
  z-index: 2;
  top: 0.75rem;
  right: 0.75rem;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  background: hsl(222 47% 8% / 0.82);
  color: hsl(210 40% 96%);
  content: "↗";
  font-size: 1rem;
}

body[data-mumulab-page="tools"] .app-card:hover {
  border-color: hsl(var(--mumu-brand));
  background: hsl(var(--mumu-bg));
  box-shadow: none;
  transform: translateY(-3px);
}

body[data-mumulab-page="tools"] .app-icon {
  display: none;
}

body[data-mumulab-page="tools"] .app-thumbnail {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: hsl(var(--mumu-bg-muted));
}

body[data-mumulab-page="tools"] .app-thumbnail img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.76) contrast(0.98);
  transition:
    filter 220ms ease,
    transform 300ms ease;
}

body[data-mumulab-page="tools"] .app-card:hover .app-thumbnail img {
  filter: saturate(0.96) contrast(1);
  transform: scale(1.018);
}

body[data-mumulab-page="tools"] .app-name {
  align-self: end;
  margin: 1rem 1rem 0;
  color: hsl(var(--mumu-text));
  font-size: 1.02rem;
  font-weight: 740;
  line-height: 1.3;
  text-align: left;
}

body[data-mumulab-page="tools"] .app-description {
  margin: 0.55rem 1rem 1rem;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.78rem;
  line-height: 1.55;
  text-align: left;
}

.mumu-learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.5rem;
}

.mumu-learning-card {
  display: grid;
  min-width: 0;
  overflow: hidden;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg));
}

.mumu-learning-card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: hsl(var(--mumu-bg-muted));
}

.mumu-learning-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(0.96);
  transition:
    filter 220ms ease,
    transform 300ms ease;
}

.mumu-learning-card:hover .mumu-learning-card__media img {
  filter: saturate(0.95) contrast(1);
  transform: scale(1.015);
}

.mumu-chip {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  border: 1px solid hsl(0 0% 100% / 0.36);
  border-radius: 999px;
  background: hsl(220 18% 8% / 0.86);
  color: white;
  padding: 0.35rem 0.55rem;
  font-family: var(--mumu-font-mono);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.mumu-learning-card__body {
  display: flex;
  min-height: 17rem;
  flex-direction: column;
  padding: 1.1rem;
}

.mumu-learning-card__type {
  margin: 0 0 0.75rem !important;
  color: hsl(var(--mumu-brand)) !important;
  font-family: var(--mumu-font-mono);
  font-size: 0.66rem !important;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.mumu-learning-card h3 {
  margin: 0;
  color: hsl(var(--mumu-text));
  font-size: 1.12rem;
  font-weight: 750;
  letter-spacing: -0.025em;
  line-height: 1.34;
}

.mumu-learning-card__body > p:not(.mumu-learning-card__type) {
  display: -webkit-box;
  overflow: hidden;
  margin: 0.8rem 0 1.25rem;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.78rem;
  line-height: 1.6;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.mumu-learning-card .mumu-card-action {
  width: 100%;
  margin-top: auto;
  justify-content: space-between;
}

.mumu-page-footer {
  display: flex;
  width: min(100% - 2rem, 80rem);
  min-height: 6rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid hsl(var(--mumu-border));
  margin: 0 auto;
  background: transparent !important;
  color: hsl(var(--mumu-text-secondary));
  padding: 1.25rem 0 !important;
  font-family: var(--mumu-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
}

.mumu-page-footer > div {
  display: contents;
}

.mumu-page-footer nav {
  display: flex;
  gap: 1rem;
}

.mumu-page-footer a {
  color: inherit;
  text-decoration: none;
}

.mumu-page-footer a:hover {
  color: hsl(var(--mumu-brand));
}

.mumu-section-heading--actions {
  grid-template-columns: minmax(0, 1fr) auto;
}

.mumu-view-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg-subtle));
}

.mumu-view-toggle button {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  cursor: pointer;
  place-items: center;
  border: 0;
  border-radius: var(--mumu-radius-sm);
  background: transparent;
  color: hsl(var(--mumu-text-secondary));
}

.mumu-view-toggle button[aria-pressed="true"] {
  background: hsl(var(--mumu-text));
  color: hsl(var(--mumu-bg));
}

.mumu-view-toggle .material-symbols-outlined {
  font-size: 1.15rem;
}

.mumu-media-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.5rem;
}

.mumu-media-card {
  display: grid;
  min-width: 0;
  grid-column: span 4;
  overflow: hidden;
  appearance: none;
  cursor: pointer;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg));
  color: hsl(var(--mumu-text));
  padding: 0;
  text-align: left;
  transition:
    border-color 180ms ease,
    transform 180ms ease;
}

.mumu-media-card--featured {
  grid-column: span 8;
}

.mumu-media-card:hover {
  border-color: hsl(var(--mumu-brand));
  transform: translateY(-3px);
}

.mumu-media-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: hsl(var(--mumu-bg-muted));
}

.mumu-media-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(0.97);
  transition:
    filter 220ms ease,
    transform 320ms ease;
}

.mumu-media-card:hover .mumu-media-card__image img {
  filter: saturate(1) contrast(1);
  transform: scale(1.018);
}

.mumu-media-card__play {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  display: grid !important;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid hsl(0 0% 100% / 0.4);
  border-radius: 50%;
  background: hsl(220 18% 8% / 0.86);
  color: white;
}

.mumu-media-card__body {
  display: grid;
  min-height: 13.5rem;
  align-content: start;
  padding: 1rem;
}

.mumu-media-card__meta,
.mumu-media-row__body > p {
  margin: 0 0 0.75rem !important;
  color: hsl(var(--mumu-brand)) !important;
  font-family: var(--mumu-font-mono);
  font-size: 0.63rem !important;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.mumu-media-card h3,
.mumu-media-row h3 {
  margin: 0;
  color: hsl(var(--mumu-text));
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
  font-weight: 750;
  letter-spacing: -0.028em;
  line-height: 1.35;
}

.mumu-media-card__body > p:last-child,
.mumu-media-row__body > span {
  display: -webkit-box;
  overflow: hidden;
  margin: 0.8rem 0 0;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.78rem;
  line-height: 1.6;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.mumu-media-list {
  display: grid;
  padding-top: 1.5rem;
  border-top: 1px solid hsl(var(--mumu-border));
}

.mumu-media-row {
  display: grid;
  min-width: 0;
  grid-template-columns: 3rem minmax(9rem, 15rem) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  appearance: none;
  cursor: pointer;
  border: 0;
  border-bottom: 1px solid hsl(var(--mumu-border));
  background: transparent;
  color: hsl(var(--mumu-text));
  padding: 0.75rem 0;
  text-align: left;
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background-color 160ms ease;
}

.mumu-media-row:hover {
  border-color: hsl(var(--mumu-brand));
  background: hsl(var(--mumu-bg-subtle));
}

.mumu-media-row__index {
  color: hsl(var(--mumu-brand));
  font-family: var(--mumu-font-mono);
  font-size: 0.7rem;
  text-align: center;
}

.mumu-media-row__image {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--mumu-radius-sm);
  background: hsl(var(--mumu-bg-muted));
}

.mumu-media-row__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75);
}

.mumu-media-row__body > p {
  margin-bottom: 0.35rem !important;
}

.mumu-media-row__body > span {
  margin-top: 0.4rem;
}

.mumu-media-row__action {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: 50%;
}

.mumu-media-row--pending {
  cursor: default;
  opacity: 0.55;
}

.mumu-story-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.5rem;
}

.mumu-story-card {
  display: grid;
  min-width: 0;
  overflow: hidden;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg));
  color: hsl(var(--mumu-text));
  text-decoration: none;
  transition:
    border-color 180ms ease,
    transform 180ms ease;
}

.mumu-story-card--featured {
  grid-column: span 2;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
}

.mumu-story-card:hover {
  border-color: hsl(var(--mumu-brand));
  transform: translateY(-3px);
}

.mumu-story-card__image {
  min-height: 22rem;
  overflow: hidden;
  background: hsl(var(--mumu-bg-muted));
}

.mumu-story-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72);
  transition:
    filter 220ms ease,
    transform 320ms ease;
}

.mumu-story-card:hover img {
  filter: saturate(0.95);
  transform: scale(1.015);
}

.mumu-story-card__body {
  display: flex;
  min-height: 17rem;
  flex-direction: column;
  padding: 1.1rem;
}

.mumu-story-card h3 {
  margin: 0;
  color: hsl(var(--mumu-text));
  font-size: clamp(1.25rem, 2.5vw, 2.25rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.12;
}

.mumu-story-card__body > p:not(.mumu-media-card__meta) {
  margin: 0.9rem 0 1.5rem;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.82rem;
  line-height: 1.65;
}

.mumu-story-card .mumu-card-action {
  width: 100%;
  justify-content: space-between;
  margin-top: auto;
}

.mumu-story-card--pending {
  background: hsl(var(--mumu-bg-subtle));
  opacity: 0.62;
}

.mumu-chip--warm {
  background: hsl(35 72% 42% / 0.92);
  color: white;
}

.mumu-vip-card {
  border-top: 3px solid hsl(35 72% 48%);
}

.mumu-vip-card--pending {
  opacity: 0.68;
}

.mumu-learning-card__placeholder {
  display: flex;
  min-height: 12rem;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  background:
    linear-gradient(90deg, hsl(var(--mumu-border)) 1px, transparent 1px),
    linear-gradient(hsl(var(--mumu-border)) 1px, transparent 1px),
    hsl(var(--mumu-bg-muted));
  background-size: 2.5rem 2.5rem;
  padding: 1rem;
}

.mumu-learning-card__placeholder span,
.mumu-learning-card__placeholder b {
  font-family: var(--mumu-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.mumu-learning-card__placeholder span {
  color: hsl(var(--mumu-brand));
}

.mumu-learning-card__placeholder b {
  color: hsl(var(--mumu-text-secondary));
}

.mumu-doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.5rem;
}

.mumu-doc-card {
  position: relative;
  display: grid;
  min-height: 17rem;
  grid-template-rows: auto 1fr auto;
  border: 1px solid hsl(var(--mumu-border));
  border-radius: var(--mumu-radius-md);
  background: hsl(var(--mumu-bg-subtle));
  color: hsl(var(--mumu-text));
  padding: 1.1rem;
  text-decoration: none;
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.mumu-doc-card:hover {
  border-color: hsl(var(--mumu-brand));
  background: hsl(var(--mumu-bg));
  transform: translateY(-3px);
}

.mumu-doc-card__index,
.mumu-doc-card > p {
  margin: 0;
  font-family: var(--mumu-font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.06em;
}

.mumu-doc-card__index {
  color: hsl(var(--mumu-brand));
}

.mumu-doc-card > p {
  align-self: end;
  margin-bottom: 0.55rem;
  color: hsl(var(--mumu-text-secondary));
}

.mumu-doc-card h3 {
  align-self: end;
  margin: 0;
  color: hsl(var(--mumu-text));
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 760;
  letter-spacing: -0.04em;
}

.mumu-doc-card > span:last-of-type {
  max-width: 30rem;
  margin-top: 0.9rem;
  color: hsl(var(--mumu-text-secondary));
  font-size: 0.8rem;
  line-height: 1.6;
}

.mumu-doc-card b {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1rem;
}

@media (max-width: 900px) {
  .mumulab-site-header__inner {
    gap: 0.7rem;
    width: min(100% - 1rem, 80rem);
  }

  .mumulab-site-nav {
    justify-content: flex-start;
  }

  .mumulab-site-nav__link {
    padding-inline: 0.6rem;
  }

  .mumu-home-hero,
  .mumu-directory__hero-grid {
    grid-template-columns: 1fr;
  }

  .mumu-home-hero {
    min-height: 0;
  }

  .mumu-system-card {
    max-width: 34rem;
  }

  .mumu-portfolio-card,
  .mumu-portfolio-card--wide {
    grid-column: span 6;
  }

  body[data-mumulab-page="tools"] .apps-grid,
  .mumu-learning-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mumu-media-card,
  .mumu-media-card--featured {
    grid-column: span 6;
  }

  .mumu-story-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mumu-story-card--featured {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  :root {
    --mumu-shell-height: 3.65rem;
  }

  .mumulab-site-header__inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .mumulab-site-brand {
    font-size: 0;
  }

  .mumulab-site-brand__mark {
    width: 2rem;
    height: 2rem;
    font-size: 0.8rem;
  }

  .mumulab-site-nav__link {
    min-height: 2.25rem;
    padding-inline: 0.5rem;
    font-size: 0.76rem;
  }

  .mumulab-site-theme {
    width: 2.75rem;
    height: 2.75rem;
  }

  .mumulab-site-dock__back {
    display: none;
  }

  .mumu-section-heading,
  body[data-mumulab-page="tools"] .section-header {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .mumu-home,
  .mumu-directory,
  .mumu-page-footer {
    width: min(100% - 1.25rem, 80rem) !important;
  }

  .mumu-home-hero {
    padding-block: 4rem;
  }

  .mumu-home-hero__copy h1,
  .mumu-directory .page-title,
  .mumu-directory__hero h1 {
    font-size: clamp(2.75rem, 14vw, 4.5rem) !important;
  }

  .mumu-system-card__stats {
    grid-template-columns: 1fr;
  }

  .mumu-system-card__stats div + div {
    border-top: 1px solid hsl(0 0% 100% / 0.16);
    border-left: 0;
  }

  .mumu-portfolio-card,
  .mumu-portfolio-card--wide {
    grid-column: 1 / -1;
  }

  body[data-mumulab-page="tools"] .apps-grid,
  .mumu-learning-grid {
    grid-template-columns: 1fr;
  }

  .mumu-media-card,
  .mumu-media-card--featured {
    grid-column: 1 / -1;
  }

  .mumu-media-row {
    grid-template-columns: 2.25rem 6.5rem minmax(0, 1fr);
    gap: 0.65rem;
  }

  .mumu-media-row__action,
  .mumu-media-row__body > span {
    display: none;
  }

  .mumu-story-grid,
  .mumu-doc-grid {
    grid-template-columns: 1fr;
  }

  .mumu-story-card--featured {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .mumu-story-card__image {
    min-height: 15rem;
    aspect-ratio: 16 / 9;
  }

  body[data-mumulab-page="tools"] .app-card {
    min-height: 11.5rem;
  }

  .mumu-page-footer {
    display: grid;
    justify-content: stretch;
  }
}

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