*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Mesma paleta de AppColors (lib/sagax_theme.dart) usada nos sites do Memorex e do Slidox */
  --midnight-navy: #0F172A;
  --card-dark: #1E293B;
  --electric-cyan: #38BDF8;
  --soft-slate: #94A3B8;
  --snow-white: #F8FAFC;
  --body-text: #CBD5E1;
  /* Acento roxo do brilho do logótipo */
  --neon-violet: #A855F7;
  /* Cores dos jogos do Memorex (lib/screens/*_screen.dart) */
  --sequentia: #38BDF8;
  --matrix: #14B8A6;
  --identix: #F97316;
  --reverse: #EF4444;
  /* Âmbar das dicas do Sudoku Sagax (AppColors.hintAmber) */
  --hint-amber: #FFC107;
  --code-green: #22C55E;
  --line: rgba(148, 163, 184, .15);
  --line-cyan: rgba(56, 189, 248, .15);
  --brand-gradient: linear-gradient(90deg, var(--electric-cyan), var(--neon-violet));
  --topbar-h: 60px;
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 8px); }

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--midnight-navy);
  color: var(--snow-white);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: 'Exo 2', sans-serif; line-height: 1.2; }
img { max-width: 100%; }

a { color: var(--electric-cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--electric-cyan); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--electric-cyan);
  color: var(--midnight-navy);
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 max(16px, calc((100% - 1120px) / 2));
  background: rgba(15, 23, 42, .85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(56, 189, 248, .1);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--snow-white);
  font: 700 1.05rem 'Exo 2', sans-serif;
  letter-spacing: .1em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--soft-slate);
  font-size: .95rem;
  transition: color .2s, background .2s;
}
.main-nav a:hover { color: var(--snow-white); background: rgba(56, 189, 248, .08); text-decoration: none; }

/* Language switcher (links gerados por tools/build.js, um por idioma) */
.lang-bar { display: flex; gap: 4px; }
.main-nav + .lang-bar { padding-left: 16px; border-left: 1px solid var(--line); }
.lang-bar a {
  padding: 4px 9px;
  border-radius: 6px;
  font-size: .8rem;
  color: var(--soft-slate);
  transition: background .2s, color .2s;
}
.lang-bar a:hover { background: rgba(56, 189, 248, .1); color: var(--snow-white); text-decoration: none; }
.lang-bar a[aria-current="page"] { background: var(--electric-cyan); color: var(--midnight-navy); font-weight: 600; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  padding: 56px 16px 80px;
  background:
    radial-gradient(ellipse 55% 45% at 50% 30%, rgba(168, 85, 247, .2), transparent 70%),
    radial-gradient(ellipse 50% 40% at 50% 10%, rgba(56, 189, 248, .16), transparent 70%),
    linear-gradient(180deg, #0F172A 0%, #131c30 100%);
}
.hero::after {
  /* Funde o fundo da hero com o resto da página */
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  z-index: -1;
  background: linear-gradient(180deg, transparent, var(--midnight-navy));
}
.neurons {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: .75;
}
.hero .mark {
  display: block;
  width: min(240px, 60vw);
  height: auto;
  margin: 0 auto 4px;
  /* A imagem tem fundo escuro próprio — esbate as margens para a integrar no gradiente */
  -webkit-mask-image: radial-gradient(circle closest-side, #000 72%, transparent 100%);
  mask-image: radial-gradient(circle closest-side, #000 72%, transparent 100%);
  filter: drop-shadow(0 0 40px rgba(168, 85, 247, .3));
}
.hero .wordmark {
  font: 700 clamp(1.5rem, 4.5vw, 2.1rem) 'Exo 2', sans-serif;
  letter-spacing: .22em;
  margin-right: -.22em; /* compensa o letter-spacing da última letra na centragem */
  line-height: 1.2;
  margin-bottom: 10px;
}
.hero .kicker {
  margin-bottom: 20px;
  font: 600 .85rem 'Exo 2', sans-serif;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--electric-cyan);
}
.hero h1 {
  max-width: 760px;
  margin: 0 auto 16px;
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 700;
}
.hero .description {
  max-width: 620px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
  color: var(--soft-slate);
}
.hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 640px;
  margin: 48px auto 0;
  border: 1px solid var(--line-cyan);
  border-radius: 16px;
  background: rgba(30, 41, 59, .55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.stats-row div { padding: 14px 8px; }
.stats-row div + div { border-left: 1px solid var(--line); }
.stats-row b {
  display: block;
  font: 700 1.7rem 'Exo 2', sans-serif;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stats-row span { font-size: .85rem; color: var(--soft-slate); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: 700 1rem 'Exo 2', sans-serif;
  letter-spacing: .03em;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid var(--accent, var(--electric-cyan));
  background: var(--accent, var(--electric-cyan));
  color: var(--midnight-navy);
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background .2s, color .2s;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px color-mix(in srgb, var(--accent, var(--electric-cyan)) 35%, transparent);
}
.btn.ghost { background: transparent; color: var(--accent, var(--electric-cyan)); }
.btn.ghost:hover { background: color-mix(in srgb, var(--accent, var(--electric-cyan)) 12%, transparent); }

/* Store badges */
.badges { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.badges a { display: inline-block; line-height: 0; }
.badges a img { height: 44px; width: auto; border-radius: 8px; transition: transform .2s; }
.badges a:hover img { transform: scale(1.05); }

/* Section */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 16px;
}
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head .eyebrow {
  display: block;
  margin-bottom: 8px;
  font: 600 .8rem 'Exo 2', sans-serif;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--neon-violet);
}
.section-head h2 { font-size: clamp(1.7rem, 4vw, 2.3rem); margin-bottom: 12px; }
.section-head p { color: var(--soft-slate); }

/* Game showcase */
.showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.showcase + .showcase { margin-top: 96px; }
.showcase.reverse .showcase-visual { order: 2; }

/* Banner e telemóvel lado a lado, com ligeira sobreposição só na margem decorativa do banner.
   A altura do contentor é a do telemóvel: 34% da largura × 2868/1320 ≈ 74% */
.showcase-visual {
  position: relative;
  aspect-ratio: 100 / 74;
}
.showcase-visual .banner {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 72%;
  height: auto;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 16%, transparent), 0 20px 50px rgba(2, 6, 23, .5);
}
.showcase-visual .phone {
  position: absolute;
  right: 0;
  top: 0;
  width: 34%;
  height: auto;
  aspect-ratio: 1320 / 2868;
  object-fit: cover;
  border-radius: 22px;
  border: 4px solid #0b1222;
  outline: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: var(--card-dark);
  box-shadow: -12px 24px 60px rgba(2, 6, 23, .75);
  transition: transform .35s;
}
.showcase:hover .phone { transform: translateY(-6px) rotate(1.5deg); }
.showcase.reverse .showcase-visual .banner { left: auto; right: 0; }
.showcase.reverse .showcase-visual .phone { right: auto; left: 0; box-shadow: 12px 24px 60px rgba(2, 6, 23, .75); }
.showcase.reverse:hover .phone { transform: translateY(-6px) rotate(-1.5deg); }

.showcase-body h3 { font-size: clamp(2rem, 4vw, 2.6rem); letter-spacing: .04em; }
.showcase-body .tagline {
  font: 600 1.15rem 'Exo 2', sans-serif;
  color: var(--accent);
  margin: 4px 0 16px;
}
.showcase-body > p { color: var(--body-text); margin-bottom: 20px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin-bottom: 20px; }
.chips li {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .85rem;
  color: var(--snow-white);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

/* Os quatro jogos do Memorex */
.modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}
.mode {
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--card-dark);
  border-left: 3px solid var(--mode);
}
.mode b { display: block; font: 700 .95rem 'Exo 2', sans-serif; letter-spacing: .06em; color: var(--mode); text-transform: uppercase; }
.mode span { font-size: .85rem; color: var(--soft-slate); }

/* Progressão de níveis do Slidox (2×3 → 7×7) */
.levels {
  margin-bottom: 24px;
  padding: 14px 16px 10px;
  border-radius: 12px;
  background: var(--card-dark);
}
.bars { display: flex; align-items: flex-end; gap: 6px; height: 64px; }
.bars span {
  flex: 1;
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--neon-violet), var(--electric-cyan));
  opacity: .85;
}
/* Níveis do Sudoku Sagax: números dados por nível, do Iniciante (ciano) ao Especialista (âmbar) */
.clues { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 4px; }
.clues span {
  --band: var(--electric-cyan);
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 6px;
  font: 600 clamp(.8rem, 2.4vw, 1rem) 'Exo 2', sans-serif;
  color: var(--snow-white);
  background: color-mix(in srgb, var(--band) 22%, var(--midnight-navy));
  border: 1px solid color-mix(in srgb, var(--band) 55%, transparent);
}
.clues span[data-band="1"] { --band: color-mix(in srgb, var(--electric-cyan) 75%, var(--hint-amber)); }
.clues span[data-band="2"] { --band: color-mix(in srgb, var(--electric-cyan) 50%, var(--hint-amber)); }
.clues span[data-band="3"] { --band: color-mix(in srgb, var(--electric-cyan) 25%, var(--hint-amber)); }
.clues span[data-band="4"] { --band: var(--hint-amber); }
.levels-caption { display: flex; justify-content: space-between; margin-top: 8px; font-size: .8rem; color: var(--soft-slate); }
.levels-caption.center { justify-content: center; }
/* Níveis do MasterCode: um código de exemplo por nível */
.code-row {
  display: grid;
  grid-template-columns: 5.5rem auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  font-size: .85rem;
  color: var(--soft-slate);
}
.code-row + .code-row { border-top: 1px solid var(--line); }
.code-row b { font: 600 .9rem 'Exo 2', sans-serif; color: var(--snow-white); }
.code-row > span:last-child { text-align: right; }
.pegs { display: flex; gap: 5px; }
.pegs i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%,
    color-mix(in srgb, var(--peg) 55%, white) 0%, var(--peg) 50%,
    color-mix(in srgb, var(--peg) 70%, black) 100%);
  box-shadow: 0 0 6px color-mix(in srgb, var(--peg) 35%, transparent);
}

.showcase-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }

/* Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.pillar {
  background: var(--card-dark);
  border: 1px solid var(--line-cyan);
  border-radius: 16px;
  padding: 28px 24px;
  transition: border-color .25s, transform .25s;
}
.pillar:hover { border-color: var(--electric-cyan); transform: translateY(-2px); }
.pillar .icon { font-size: 1.9rem; line-height: 1; margin-bottom: 14px; }
.pillar h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--electric-cyan); }
.pillar p { color: var(--soft-slate); font-size: .95rem; }

.etymology {
  max-width: 720px;
  margin: 56px auto 0;
  padding: 24px 28px;
  border-radius: 16px;
  border: 1px solid rgba(168, 85, 247, .25);
  background: linear-gradient(135deg, rgba(56, 189, 248, .06), rgba(168, 85, 247, .08));
  text-align: center;
}
.etymology dfn { font: italic 700 1.4rem 'Exo 2', sans-serif; color: var(--snow-white); }
.etymology .pron { color: var(--soft-slate); margin-left: 6px; }
.etymology p { margin-top: 6px; color: var(--body-text); }

/* Contact band */
.cta-band {
  max-width: 1120px;
  margin: 0 auto 80px;
  padding: 0 16px;
}
.cta-inner {
  position: relative;
  overflow: hidden;
  padding: 48px 32px;
  border-radius: 24px;
  text-align: center;
  border: 1px solid rgba(56, 189, 248, .2);
  background:
    radial-gradient(ellipse 60% 80% at 0% 0%, rgba(56, 189, 248, .14), transparent 70%),
    radial-gradient(ellipse 60% 80% at 100% 100%, rgba(168, 85, 247, .18), transparent 70%),
    var(--card-dark);
}
.cta-inner h2 { font-size: clamp(1.6rem, 4vw, 2.1rem); margin-bottom: 10px; }
.cta-inner p { max-width: 560px; margin: 0 auto 28px; color: var(--body-text); }
.cta-inner .hero-actions .btn { overflow-wrap: anywhere; }

/* Footer */
footer {
  text-align: center;
  padding: 40px 16px;
  color: var(--soft-slate);
  font-size: 0.9rem;
  border-top: 1px solid rgba(148, 163, 184, .1);
}
.footer-logo {
  width: 150px;
  height: auto;
  margin-bottom: 16px;
  opacity: .85;
  border-radius: 12px;
  transition: opacity .2s;
}
.footer-logo:hover { opacity: 1; }
.footer-links {
  margin-top: 12px;
  display: flex;
  justify-content: center;
  gap: 8px 24px;
  flex-wrap: wrap;
}

/* Sub pages (privacy / contact) */
.container { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
.back-link { display: inline-block; margin-bottom: 24px; font-size: .95rem; }
.container h1 { font-size: 2rem; margin-bottom: 8px; }
.container h2 { font-size: 1.25rem; color: var(--electric-cyan); margin: 32px 0 12px; }
.container p, .container li { color: var(--body-text); margin-bottom: 12px; }
.container ul { padding-left: 22px; margin-bottom: 12px; }
.container li { margin-bottom: 6px; }
.container code { font-size: .9em; padding: 1px 6px; border-radius: 4px; background: var(--card-dark); }
.last-updated { color: var(--soft-slate) !important; font-size: .9rem; margin-bottom: 24px !important; }
.highlight {
  background: var(--card-dark);
  border-left: 4px solid var(--electric-cyan);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
}
.highlight p { margin: 0; }

.contact-wrap { display: flex; justify-content: center; padding: 16px 16px 64px; }
.contact-card {
  width: 100%;
  max-width: 480px;
  background: var(--card-dark);
  border: 1px solid var(--line-cyan);
  border-radius: 20px;
  padding: 40px 28px;
  text-align: center;
}
.contact-card .logo { width: 70%; max-width: 220px; height: auto; margin-bottom: 20px; border-radius: 12px; }
.contact-card h1 { font-size: 1.6rem; }
.contact-card .intro { color: var(--soft-slate); margin-bottom: 24px; }
.divider { width: 60px; height: 3px; margin: 16px auto 20px; border-radius: 2px; background: var(--brand-gradient); }
.contact-item { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 14px; overflow-wrap: anywhere; }
.contact-games { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.contact-games h2 { font-size: 1rem; color: var(--soft-slate); font-weight: 600; margin-bottom: 14px; }
.contact-games div { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.contact-games a { display: block; line-height: 0; padding: 8px 12px; border-radius: 12px; background: var(--midnight-navy); border: 1px solid var(--line); transition: border-color .2s; }
.contact-games a:hover { border-color: var(--electric-cyan); }
.contact-games img { height: 48px; width: auto; }
.company-name { margin-top: 24px; color: var(--soft-slate); font-size: .9rem; }

/* Reveal ao fazer scroll — só com JS (classe .js no <html>), senão o conteúdo fica sempre visível */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease-out, transform .7s ease-out; }
.js .reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .showcase, .showcase.reverse { grid-template-columns: 1fr; gap: 32px; }
  .showcase.reverse .showcase-visual { order: 0; }
  .showcase-visual { max-width: 560px; margin: 0 auto; width: 100%; }
  .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .main-nav { display: none; }
  .main-nav + .lang-bar { margin-left: auto; padding-left: 0; border-left: 0; }
  .stats-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-row div:nth-child(3) { border-left: 0; }
  .stats-row div:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 560px) {
  .brand span { display: none; }
  .pillars, .modes { grid-template-columns: 1fr; }
  .section { padding: 56px 16px; }
  .cta-inner { padding: 36px 20px; }
  .lang-bar a { padding: 4px 7px; }
  .code-row { grid-template-columns: auto 1fr; row-gap: 4px; }
  .code-row > span:last-child { grid-column: 1 / -1; text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .pillar, .phone, .badges a img { transition: none; }
}