:root {
  --azul-claro: #e3effc;
  --azul: #498ecf;
  --azul-escuro: #0051a2;
  --amarelo: #ffe600;
  --cinza: #f8f8fc;
  --branco: #fff;
  --borda: #e0e4ef;
  --vermelho: #e55763;
  --texto: #35343c;
  --destaque: #141d6d;
}
body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', Arial, sans-serif;
  background: #eaf6ff;
  color: var(--texto);
}
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: var(--azul-claro);
  padding: 16px 0 0 0;
  border-bottom: 2px solid #d0ebff;
}
.logo-img {
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--amarelo);
  background: var(--branco);
}
.header-title {
  font-family: 'Fredoka One', cursive;
  font-size: 2rem;
  color: var(--destaque);
  background: var(--amarelo);
  border-radius: 16px;
  padding: 0.1em 0.7em;
  margin-left: 0.5em;
  letter-spacing: 2px;
  box-shadow: 0 1px 6px #0001;
}
.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 24px;
  background: var(--azul-claro);
  padding: 0.7em 0 0.5em 0;
  font-family: 'Fredoka One', cursive;
  font-size: 1.1rem;
}
.menu-btn {
  background: none;
  border: none;
  color: var(--destaque);
  font-family: inherit;
  font-size: 1em;
  padding: 0.4em 1.4em;
  border-radius: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5em;
  transition: background 0.14s;
  text-decoration: none;
}
.menu-btn.active, .menu-btn:hover {
  background: var(--amarelo);
  color: var(--azul-escuro);
}
.footer {
  background: var(--azul-claro);
  color: var(--azul-escuro);
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  padding: 1.2em 0 0.9em 0;
  margin-top: 2em;
  border-top: 2px solid #d0ebff;
  text-align: center;
}
/* Modo escuro: texto branco */
body.dark-mode,
body.dark-mode p,
body.dark-mode h1, 
body.dark-mode h2, 
body.dark-mode h3, 
body.dark-mode h4, 
body.dark-mode h5, 
body.dark-mode h6, 
body.dark-mode span, 
body.dark-mode a, 
body.dark-mode li, 
body.dark-mode label, 
body.dark-mode input {
  color: #fff !important;
}
body.dark-mode {
  background: #222d3d !important;
}
body.dark-mode .header,
body.dark-mode .menu,
body.dark-mode .footer {
  background: #222d3d !important;
  color: #ffd700 !important;
}
body.dark-mode .ajuste-card,
body.dark-mode .ajustes-container {
  background: #2c3950 !important;
  color: #fff !important;
  border-color: #444c5a !important;
}
body.dark-mode .ajuste-card .ajuste-label { color: #ffd700 !important; }
body.dark-mode .ajuste-btn { background: #ffd700; color: #222d3d; }

/* Fonte ampliada: caixa alta */
body.font-big,
body.font-big * {
  text-transform: uppercase !important;
  letter-spacing: 0.04em;
  font-size: 1.18em !important;
}