:root {
  --color-bg: #18181B;
  --color-bg-gradient: linear-gradient(135deg, #18181b 0%, #1f1f22 100%);
  --color-accent: #C2410C;
  --color-accent-light: #ff6e1a;
  --color-card-bg: rgba(30,29,34,0.96);
  --color-card-gradient: linear-gradient(120deg, rgba(255,255,255,0.01) 0%, rgba(194,65,12,0.03) 100%);
  --color-shadow: 0 4px 24px 0 rgba(0,0,0,0.12), 0 1.5px 6px 0 rgba(194,65,12,0.08);
  --color-border: rgba(194,65,12,0.13);
  --color-text: #F3F3F6;
  --color-text-secondary: #bdbdc5;
  --color-muted: #8a8a99;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
  --max-width: 1240px;
  --font-main: 'Inter', 'Segoe UI', Arial, sans-serif;
  --font-size: 14px;
  --font-size-sm: 13px;
  --font-size-lg: 20px;
  --section-gap: 56px;
  --section-gap-mobile: 32px;
  --container-pad: 32px;
  --container-pad-mobile: 16px;
}

/* Reset & base */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--color-bg-gradient);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: var(--font-size);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body.mathtango-body {
  background: var(--color-bg-gradient);
  min-height: 100vh;
}

img, video {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-accent-light);
}

/* Container */
.mathtango-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
@media (max-width: 700px) {
  .mathtango-container {
    padding-left: var(--container-pad-mobile);
    padding-right: var(--container-pad-mobile);
  }
}

/* Header */
.mathtango-header {
  background: var(--color-card-bg);
  box-shadow: var(--color-shadow);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.mathtango-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px var(--container-pad);
}
.mathtango-logo__img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  box-shadow: 0 2px 10px 0 rgba(194,65,12,0.08);
  background: var(--color-bg-gradient);
}

.mathtango-nav__list {
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.mathtango-nav__link {
  color: var(--color-text);
  font-weight: 500;
  padding: 7px 0;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
  font-size: 15px;
  letter-spacing: 0.01em;
}
.mathtango-nav__link:hover,
.mathtango-nav__link:focus {
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
}
@media (max-width: 820px) {
  .mathtango-header__inner {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
    padding: 10px var(--container-pad-mobile);
  }
  .mathtango-nav__list {
    gap: 18px;
  }
}

/* Main sections */
main.mathtango-main > section {
  margin-top: var(--section-gap);
  margin-bottom: var(--section-gap);
}
@media (max-width: 700px) {
  main.mathtango-main > section {
    margin-top: var(--section-gap-mobile);
    margin-bottom: var(--section-gap-mobile);
  }
}

/* Section titles */
.mathtango-section__title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 28px;
  letter-spacing: 0.01em;
  color: var(--color-text);
  text-shadow: 0 1px 8px rgba(194,65,12,0.06);
}

/* HERO */
.mathtango-hero {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  margin-top: 36px;
  margin-bottom: 48px;
  padding: 0;
  position: relative;
  overflow: hidden;
}
.mathtango-hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px var(--container-pad) 36px var(--container-pad);
  background: var(--color-card-gradient);
}
@media (max-width: 900px) {
  .mathtango-hero__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px var(--container-pad-mobile) 24px var(--container-pad-mobile);
  }
}
.mathtango-hero__col--text {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.mathtango-hero__title {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 0 0 8px 0;
  color: var(--color-accent);
  text-shadow: 0 2px 16px rgba(194,65,12,0.09);
  letter-spacing: 0.01em;
}
.mathtango-hero__tagline {
  font-size: 1.12rem;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}
.mathtango-hero__intro {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
.mathtango-hero__meta {
  margin: 0 0 12px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}
.mathtango-hero__meta li {
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  box-shadow: 0 1px 4px 0 rgba(194,65,12,0.04);
  border: 1px solid rgba(194,65,12,0.07);
  font-weight: 500;
}
.mathtango-hero__cta {
  display: flex;
  gap: 18px;
  margin-top: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.mathtango-hero__note {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: 10px;
}

.mathtango-hero__col--media {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-end;
}
.mathtango-video {
  position: relative;
  width: 100%;
  min-height: 210px;
  max-height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--color-shadow);
  background: rgba(255,255,255,0.01);
}
.mathtango-video__el {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
  background: #202024;
}
.mathtango-video__thumb {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.13;
  pointer-events: none;
  border-radius: var(--radius-lg);
}
.mathtango-hero__images {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.mathtango-hero__img {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px 0 rgba(194,65,12,0.07);
  background: #232325;
}

/* BUTTONS */
.mathtango-btn {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 26px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  outline: none;
  box-shadow: 0 2px 10px 0 rgba(194,65,12,0.08);
  text-align: center;
  letter-spacing: 0.01em;
  text-decoration: none;
  position: relative;
  z-index: 1;
}
.mathtango-btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 2px 16px 0 rgba(194,65,12,0.18);
}
.mathtango-btn--primary:hover, .mathtango-btn--primary:focus {
  background: #fff;
  color: var(--color-accent);
  box-shadow: 0 4px 22px 0 rgba(194,65,12,0.22);
}
.mathtango-btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.mathtango-btn--ghost:hover, .mathtango-btn--ghost:focus {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent-light);
}

/* WORLD */
.mathtango-world {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 40px 0 36px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-world__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 44px;
  align-items: start;
}
@media (max-width: 900px) {
  .mathtango-world__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
.mathtango-world__col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.mathtango-world__img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px 0 rgba(194,65,12,0.09);
  margin-bottom: 18px;
}
.mathtango-world__features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mathtango-world__features li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-world__features li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.7;
}

/* PLAY */
.mathtango-play {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--color-shadow);
  padding: 36px 0 32px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-play__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 900px) {
  .mathtango-play__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
.mathtango-play__col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mathtango-play__img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  box-shadow: 0 1.5px 8px 0 rgba(194,65,12,0.06);
}
.mathtango-play__col ul,
.mathtango-play__col ol {
  margin: 0 0 10px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.mathtango-play__col ul li,
.mathtango-play__col ol li {
  position: relative;
  padding-left: 20px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-play__col ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.55;
}
.mathtango-play__col ol {
  counter-reset: play-ol;
}
.mathtango-play__col ol li {
  padding-left: 26px;
}
.mathtango-play__col ol li::before {
  counter-increment: play-ol;
  content: counter(play-ol) '.';
  position: absolute;
  left: 0; top: 0;
  color: var(--color-accent);
  font-weight: bold;
  font-size: 13px;
  opacity: 0.75;
}

/* FEATURES */
.mathtango-features {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 40px 0 32px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-features__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 900px) {
  .mathtango-features__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}
.mathtango-features__col {
  background: rgba(255,255,255,0.01);
  border-radius: var(--radius-md);
  padding: 18px 18px 14px 18px;
  box-shadow: 0 1.5px 6px 0 rgba(194,65,12,0.06);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mathtango-features__img {
  width: 100%;
  max-height: 170px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  box-shadow: 0 1px 6px 0 rgba(194,65,12,0.04);
}
.mathtango-features__col ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mathtango-features__col ul li {
  position: relative;
  padding-left: 20px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-features__col ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}
.mathtango-features__note {
  margin-top: 18px;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* RHYTHM */
.mathtango-rhythm {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--color-shadow);
  padding: 38px 0 30px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-rhythm__content {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(255,255,255,0.01);
  border-radius: var(--radius-md);
  padding: 24px 24px 20px 24px;
  box-shadow: 0 1.5px 6px 0 rgba(194,65,12,0.03);
}
.mathtango-rhythm__content h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.08rem;
  color: var(--color-accent);
}
.mathtango-rhythm__content ol,
.mathtango-rhythm__content ul {
  margin: 0 0 10px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.mathtango-rhythm__content ol {
  counter-reset: rhythm-ol;
}
.mathtango-rhythm__content ol li {
  position: relative;
  padding-left: 28px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-rhythm__content ol li::before {
  counter-increment: rhythm-ol;
  content: counter(rhythm-ol) '.';
  position: absolute;
  left: 0; top: 0;
  color: var(--color-accent);
  font-weight: bold;
  font-size: 13px;
  opacity: 0.7;
}
.mathtango-rhythm__content ul li {
  position: relative;
  padding-left: 20px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-rhythm__content ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}

/* UNIQUE CARDS */
.mathtango-unique {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 40px 0 36px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-unique__cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 1100px) {
  .mathtango-unique__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}
@media (max-width: 700px) {
  .mathtango-unique__cards {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}
.mathtango-card {
  background: rgba(255,255,255,0.01);
  border-radius: var(--radius-md);
  box-shadow: 0 1.5px 8px 0 rgba(194,65,12,0.07);
  padding: 22px 18px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid transparent;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.mathtango-card:hover, .mathtango-card:focus-within {
  box-shadow: 0 4px 24px 0 rgba(194,65,12,0.15);
  border-color: var(--color-accent);
}
.mathtango-card h3 {
  margin: 0 0 6px 0;
  font-size: 1.05rem;
  color: var(--color-accent);
  font-weight: 700;
}
.mathtango-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* SCREENSHOTS */
.mathtango-screenshots {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--color-shadow);
  padding: 36px 0 28px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-screenshots__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
@media (max-width: 1100px) {
  .mathtango-screenshots__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}
@media (max-width: 700px) {
  .mathtango-screenshots__grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
.mathtango-shot {
  background: rgba(255,255,255,0.01);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 6px 0 rgba(194,65,12,0.04);
  padding: 10px 10px 8px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}
.mathtango-shot__img {
  width: 100%;
  min-height: 90px;
  max-height: 170px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 6px 0 rgba(194,65,12,0.08);
}
.mathtango-shot__caption {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  text-align: center;
  margin: 0;
  margin-top: 4px;
}

/* FAQ */
.mathtango-faq {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 40px 0 36px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-faq__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
@media (max-width: 900px) {
  .mathtango-faq__list {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}
.mathtango-faq__item {
  background: rgba(255,255,255,0.01);
  border-radius: var(--radius-md);
  box-shadow: 0 1.5px 8px 0 rgba(194,65,12,0.05);
  padding: 18px 18px 14px 18px;
  border-left: 2px solid var(--color-accent);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.mathtango-faq__item h3 {
  margin: 0 0 7px 0;
  font-size: 1.01rem;
  color: var(--color-accent);
  font-weight: 600;
}
.mathtango-faq__item p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* IMPRESSIONS */
.mathtango-impressions {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--color-shadow);
  padding: 36px 0 32px 0;
  background-image: var(--color-card-gradient);
}
.mathtango-impressions__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
  align-items: center;
}
@media (max-width: 900px) {
  .mathtango-impressions__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}
.mathtango-impressions__col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mathtango-impressions__img {
  width: 100%;
  max-height: 270px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 1.5px 8px 0 rgba(194,65,12,0.06);
}
.mathtango-impressions__col ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.mathtango-impressions__col ul li {
  position: relative;
  padding-left: 20px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}
.mathtango-impressions__col ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
}

/* FOOTER */
.mathtango-footer {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: 0 -2px 16px 0 rgba(194,65,12,0.10);
  margin-top: 56px;
  padding: 0;
}
.mathtango-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 34px var(--container-pad) 24px var(--container-pad);
}
@media (max-width: 900px) {
  .mathtango-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    padding: 22px var(--container-pad-mobile) 14px var(--container-pad-mobile);
  }
}
@media (max-width: 700px) {
  .mathtango-footer__inner {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px var(--container-pad-mobile) 10px var(--container-pad-mobile);
  }
}
.mathtango-footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mathtango-footer__logoimg {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  margin-bottom: 8px;
  box-shadow: 0 1px 8px 0 rgba(194,65,12,0.10);
}
.mathtango-footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.mathtango-footer__links li a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition);
}
.mathtango-footer__links li a:hover,
.mathtango-footer__links li a:focus {
  color: var(--color-accent);
}
.mathtango-footer__col h4 {
  margin: 0 0 7px 0;
  color: var(--color-accent);
  font-size: 1.01rem;
  font-weight: 600;
}

/* COOKIE BANNER */
.mathtango-cookie {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  width: 100vw;
  background: var(--color-card-bg);
  box-shadow: 0 -2px 24px 0 rgba(194,65,12,0.13);
  z-index: 1000;
  padding: 0;
  transition: transform var(--transition), opacity var(--transition);
}
.mathtango-cookie__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.mathtango-cookie p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
  flex: 1;
}
@media (max-width: 700px) {
  .mathtango-cookie__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px var(--container-pad-mobile);
  }
}

/* Misc */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-main);
  font-weight: 700;
  margin-top: 0;
}
h2 {
  font-size: 1.35rem;
}
h3 {
  font-size: 1.08rem;
}
p {
  margin: 0 0 8px 0;
  color: var(--color-text);
}
@media (max-width: 700px) {
  h1 { font-size: 1.45rem; }
  h2 { font-size: 1.08rem; }
  .mathtango-hero__title { font-size: 1.35rem; }
}

/* Scrollbar styling (premium look) */
::-webkit-scrollbar {
  width: 8px;
  background: #222225;
}
::-webkit-scrollbar-thumb {
  background: #2b2b2f;
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
  opacity: 0.7;
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: #fff;
}

/* Responsive tweaks for text and padding */
@media (max-width: 500px) {
  html, body {
    font-size: 13px;
  }
  .mathtango-hero__grid,
  .mathtango-world__grid,
  .mathtango-play__grid,
  .mathtango-impressions__grid {
    gap: 12px !important;
  }
  .mathtango-section__title {
    margin-bottom: 16px;
  }
}

/* Hide video thumb if video loaded */
.mathtango-video__el:playing + .mathtango-video__thumb {
  display: none;
}

/* Remove outline for mouse users, keep for keyboard */
:focus:not(:focus-visible) {
  outline: none;
}
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}