:root {
  color-scheme: dark;
  --ink: #06101f;
  --ink-2: #101622;
  --panel: #17191f;
  --blue: #003d78;
  --blue-2: #1479e6;
  --cyan: #12bdd4;
  --green: #25d45b;
  --yellow: #ffca16;
  --orange: #ff8c00;
  --pink: #ff2e67;
  --red: #ef2a23;
  --paper: #f8fbff;
  --cream: #fff8e8;
  --muted: #aeb8c8;
  --line: #000;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  --max: 1140px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--paper);
  background: var(--ink);
  line-height: 1.5;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 3px solid var(--line);
  background: rgba(8, 13, 22, 0.96);
  backdrop-filter: blur(16px);
}

.nav-shell {
  width: calc(100% - 32px);
  max-width: var(--max);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 900;
  text-decoration: none;
}

.brand-logo,
.footer-brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a,
.footer-links a {
  color: rgba(255, 255, 255, 0.82);
  font-weight: 800;
  text-decoration: none;
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 8px;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
  color: #fff;
  outline: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 3px solid #000;
  border-radius: 8px;
  background: #fff;
  color: #000;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 3px;
  margin: 4px auto;
  border-radius: 3px;
  background: #000;
}

.hero {
  position: relative;
  min-height: 74svh;
  overflow: hidden;
  display: flex;
  align-items: center;
  border-bottom: 4px solid #000;
  background: #05070d;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/imagenes/edits/mental-math-flow-mockup.png");
  background-repeat: no-repeat;
  background-size: min(980px, 95vw);
  background-position: right 2vw center;
  opacity: 0.72;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 13, 0.57);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: calc(100% - 32px);
  max-width: var(--max);
  margin: 0 auto;
  padding: 76px 0 80px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.02;
  letter-spacing: 0;
}

h1 {
  max-width: 640px;
  font-size: 3.8rem;
}

h2 {
  font-size: 2.35rem;
}

h3 {
  font-size: 1.1rem;
}

.hero-copy {
  max-width: 590px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
}

.hero-actions,
.cta-inner,
.footer-inner,
.hero-stats,
.split-section {
  display: flex;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border: 3px solid #000;
  border-radius: 8px;
  box-shadow: 0 5px 0 #000;
  font-weight: 950;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(2px);
  box-shadow: 0 3px 0 #000;
  outline: none;
}

.button.primary {
  color: #03101c;
  background: var(--yellow);
}

.button.secondary {
  color: #fff;
  background: var(--blue-2);
}

.hero-stats {
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
}

.hero-stats div {
  min-width: 132px;
  padding: 12px 14px;
  border: 3px solid #000;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 5px 0 #000;
  color: #07111f;
}

.hero-stats dt {
  color: #31435c;
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-stats dd {
  margin: 1px 0 0;
  font-size: 1.12rem;
  font-weight: 950;
}

.section {
  border-bottom: 4px solid #000;
}

.section-inner {
  width: calc(100% - 32px);
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 0;
}

.section-light {
  color: var(--ink);
  background: var(--paper);
}

.section-blue {
  color: #fff;
  background: var(--blue);
}

.section-dark {
  color: #fff;
  background: #05070d;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading.compact {
  max-width: 680px;
}

.section-heading p:not(.eyebrow) {
  margin: 14px 0 0;
  color: currentColor;
  opacity: 0.82;
  font-size: 1.06rem;
}

.feature-grid,
.game-grid,
.showcase-grid,
.support-grid {
  display: grid;
  gap: 18px;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
}

.feature-card,
.game-card,
.support-card {
  border: 4px solid #000;
  border-radius: 8px;
  box-shadow: 0 8px 0 #000;
}

.feature-card {
  min-height: 218px;
  padding: 20px;
  background: #fff;
}

.feature-card p,
.support-card p,
.legal-content p,
.copy-stack p {
  color: #42516a;
}

.feature-icon {
  display: inline-flex;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  align-items: center;
  justify-content: center;
  border: 3px solid #000;
  border-radius: 8px;
  color: #000;
  font-size: 1.2rem;
  font-weight: 950;
}

.accent-blue .feature-icon {
  background: #5a9ff5;
}

.accent-green .feature-icon {
  background: var(--green);
}

.accent-yellow .feature-icon {
  background: var(--yellow);
}

.accent-pink .feature-icon {
  background: var(--pink);
}

.accent-orange .feature-icon {
  background: var(--orange);
}

.accent-cyan .feature-icon {
  background: var(--cyan);
}

.game-grid {
  grid-template-columns: repeat(5, 1fr);
}

.game-card {
  position: relative;
  aspect-ratio: 1;
  min-height: 0;
  overflow: hidden;
  background: #000;
}

.game-card h3 {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  z-index: 1;
  padding: 8px 10px;
  border: 3px solid #000;
  border-radius: 8px;
  color: #fff;
  background: rgba(0, 61, 120, 0.94);
  text-align: center;
  text-shadow: 0 1px 0 #000;
}

.game-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.showcase-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: start;
  gap: 30px 24px;
}

.shot-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 0;
  overflow: visible;
  background: transparent;
}

.shot-card.wide {
  grid-column: span 3;
}

.shot-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: transparent;
}

.shot-card:not(.wide) img {
  width: min(100%, 270px);
  max-height: 580px;
  object-position: center top;
}

.shot-card figcaption {
  width: 100%;
  color: #fff;
  font-weight: 950;
  text-align: center;
  text-transform: uppercase;
  font-size: 0.86rem;
}

.split-section {
  align-items: flex-start;
  justify-content: space-between;
  gap: 44px;
}

.split-section > * {
  flex: 1;
}

.copy-stack p:first-child {
  margin-top: 0;
}

.text-link {
  color: #005fcc;
  font-weight: 950;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

.cta-section {
  color: #fff;
  background: #111720;
}

.cta-inner {
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta-inner h2 {
  max-width: 760px;
}

.site-footer {
  background: #05070d;
}

.footer-inner {
  width: calc(100% - 32px);
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 0;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand img {
  width: 34px;
  height: 34px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

.page-hero {
  color: #fff;
  border-bottom: 4px solid #000;
  background: #05070d;
}

.page-hero .section-inner {
  padding: 66px 0;
}

.page-hero h1 {
  font-size: 3rem;
}

.page-hero p:not(.eyebrow) {
  max-width: 690px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
}

.page-hero .button {
  margin-top: 16px;
}

.legal-page {
  color: var(--ink);
  background: var(--paper);
}

.legal-content {
  max-width: 840px;
}

.legal-content h2,
.support-card h2 {
  margin-top: 32px;
  color: var(--ink);
  font-size: 1.35rem;
}

.legal-content h2:first-of-type {
  margin-top: 20px;
}

.legal-content a,
.support-card a {
  color: #005fcc;
  font-weight: 850;
}

.support-grid {
  grid-template-columns: repeat(2, 1fr);
}

.support-card {
  padding: 22px;
  background: #fff;
}

.support-card h2 {
  margin-top: 0;
}

.support-card ol {
  margin: 16px 0 0;
  padding-left: 22px;
  color: #42516a;
}

.support-card li + li {
  margin-top: 8px;
}

@media (max-width: 920px) {
  .feature-grid,
  .game-grid,
  .showcase-grid,
  .support-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shot-card.wide {
    grid-column: span 2;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 84px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 4px solid #000;
    border-radius: 8px;
    background: #101722;
    box-shadow: 0 8px 0 #000;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 13px 12px;
  }

  .hero {
    min-height: 72svh;
    align-items: flex-end;
  }

  .hero::before {
    background-size: 780px;
    background-position: center top 18px;
    opacity: 0.52;
  }

  .hero-content {
    padding: 150px 0 36px;
  }

  h1 {
    font-size: 2.85rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-copy {
    font-size: 1.05rem;
  }

  .section-inner {
    padding: 52px 0;
  }

  .feature-grid,
  .game-grid,
  .showcase-grid,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .shot-card.wide {
    grid-column: span 1;
  }

  .split-section,
  .cta-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-stats div {
    flex: 1 1 140px;
  }
}

@media (max-width: 420px) {
  .nav-shell,
  .section-inner,
  .footer-inner,
  .hero-content {
    width: calc(100% - 24px);
    max-width: 366px;
    margin-left: 12px;
    margin-right: 12px;
  }

  .brand span {
    max-width: 170px;
  }

  h1 {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 1.72rem;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    width: 100%;
  }
}