:root {
  color-scheme: light dark;
  --cor-fundo: #ffffff;
  --cor-texto: #111111;
  --cor-primaria: #0a58ff;
  --cor-primaria-escura: #0644c9;
  --cor-sucesso: #1ec87d;
  --cor-borda: #e4e4e4;
  font-family: 'Inter', 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --cor-fundo: #060606;
    --cor-texto: #f5f5f5;
    --cor-borda: #222;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--cor-fundo);
  color: var(--cor-texto);
  font-family: inherit;
  line-height: 1.6;
}
.no-js body { font-family: inherit; }
img { max-width: 100%; height: auto; }
.container {
  width: min(100% - 2rem, 1080px);
  margin: 0 auto;
}
.hero {
  padding: 3rem 0 2rem;
  background: linear-gradient(135deg, rgba(10,88,255,0.08), rgba(10,88,255,0));
}
.hero__conteudo { text-align: center; }
.hero__busca {
  display: flex;
  gap: .5rem;
  justify-content: center;
  margin: 1rem auto;
}
.hero__busca input {
  flex: 1;
  max-width: 320px;
  padding: .75rem 1rem;
  border-radius: .75rem;
  border: 1px solid var(--cor-borda);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.5rem;
  border-radius: .75rem;
  border: none;
  background: var(--cor-primaria);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.btn:hover,
.btn:focus {
  background: var(--cor-primaria-escura);
  transform: translateY(-1px);
}
.btn-secundario {
  background: transparent;
  color: var(--cor-primaria);
  border: 1px solid var(--cor-primaria);
}
.grid-ferramentas {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  margin-top: 2rem;
}
.card-ferramenta {
  border: 1px solid var(--cor-borda);
  border-radius: 1rem;
  padding: 1.5rem;
  background: rgba(255,255,255,0.9);
  box-shadow: 0 12px 24px rgba(0,0,0,0.04);
}
@media (prefers-color-scheme: dark) {
  .card-ferramenta { background: rgba(20,20,20,0.95); }
}
.card-ferramenta h3, .card-ferramenta h2 { margin-top: 0; }
.ads { margin: 2rem 0; }
.ferramenta__widget,
.form-gerador,
.form-upload {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}
.upload-zone {
  border: 2px dashed var(--cor-primaria);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
}
.upload-zone.arrastando {
  background: rgba(10,88,255,0.1);
}
.form-upload select,
.form-upload input[type="url"],
.form-upload input[type="password"],
.form-gerador input,
.form-gerador textarea {
  width: 100%;
  padding: .75rem 1rem;
  border-radius: .75rem;
  border: 1px solid var(--cor-borda);
}
.resultado {
  margin-top: 1rem;
  border: 1px solid var(--cor-borda);
  border-radius: .75rem;
  padding: 1rem;
}
.resultado .status { font-weight: 600; }
.resultado .aviso { color: var(--cor-primaria); }
.status.valido { color: var(--cor-sucesso); }
.status.invalido { color: #d64545; }
.topo {
  position: sticky;
  top: 0;
  background: var(--cor-fundo);
  border-bottom: 1px solid var(--cor-borda);
  z-index: 10;
}
.topo__conteudo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}
.menu {
  display: flex;
  gap: 1rem;
}
.menu a { color: var(--cor-texto); text-decoration: none; font-weight: 500; }
.menu-toggle { display: none; }
@media (max-width: 768px) {
  .menu { display: none; flex-direction: column; background: var(--cor-fundo); position: absolute; top: 60px; right: 1rem; padding: 1rem; border: 1px solid var(--cor-borda); border-radius: .75rem; }
  .menu[aria-expanded="true"] { display: flex; }
  .menu-toggle { display: inline-flex; background: transparent; border: 1px solid var(--cor-borda); border-radius: .5rem; padding: .5rem .75rem; }
}
.rodape {
  padding: 2rem 0;
  background: #f7f9fc;
  border-top: 1px solid var(--cor-borda);
}
@media (prefers-color-scheme: dark) {
  .rodape { background: #0b0b0f; }
}
.rodape__conteudo { text-align: center; }
.hero__badge {
  margin-top: 1rem;
  font-size: .9rem;
  color: var(--cor-primaria);
}
.toast {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cor-sucesso);
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(0,0,0,0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.toast.mostrar {
  opacity: 1;
  pointer-events: auto;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}