:root {
  --fundo: #07090E;
  --texto: #F3F5F8;
  --texto-2: #A9B3C1;
  --azul: #3B82F6;
  --azul-claro: #7FB0FA;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--fundo);
  color: var(--texto);
  font: 16px/1.5 system-ui, "Segoe UI", sans-serif;
}
a { color: var(--azul-claro); }
a:focus-visible { outline: 3px solid var(--azul); outline-offset: 3px; border-radius: 6px; }

.topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(16px, 4vw, 48px);
}
.marca { display: flex; align-items: center; gap: 10px; color: var(--texto); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: 0.02em; }
.marca small { font-weight: 500; font-size: 12px; letter-spacing: 0.3em; color: var(--azul-claro); margin-left: 4px; text-transform: uppercase; }
.entrar {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 10px;
  color: var(--texto);
  text-decoration: none;
  font-weight: 600;
}
.entrar:hover { background: rgba(255, 255, 255, 0.08); }

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 16px 64px;
}
.simbolo { width: clamp(88px, 18vw, 140px); height: auto; border-radius: 28px; }
.hero h1 { margin: 24px 0 8px; font-size: clamp(32px, 6vw, 56px); letter-spacing: 0.04em; }
.frase { margin: 0; font-size: clamp(17px, 2.4vw, 21px); color: var(--texto-2); }
.contato { margin: 32px 0 0; color: var(--texto-2); }

.rodape { padding: 20px 16px; text-align: center; color: var(--texto-2); font-size: 13px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.rodape p { margin: 0; }