:root {
  --navy: #01142d;
  --cyan: #1ab7ee;
  --white: #f6f9fc;
  --muted: #8fa2b8;
  --line: rgba(224, 237, 250, 0.16);
  --font-sans: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  /* eixo unico + escala vertical unica */
  --pad: clamp(1.5rem, 5vw, 4.5rem);
  --passo: clamp(1.15rem, 2.4vw, 1.55rem);
}

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

body {
  display: flex;
  flex-direction: column;
  min-width: 320px;
  min-height: 100svh;
  padding: var(--pad);
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--cyan); color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 4px;
  box-shadow: 0 0 0 5px var(--cyan);
}

/* tudo nasce da mesma borda esquerda: o padding do body */
.cartao {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--passo);
  width: 100%;
  max-width: 46rem;
  margin-inline: auto;
  text-align: center;
}

.marca { width: clamp(11rem, 22vw, 17rem); }

h1 {
  max-width: 15ch;
  font-size: clamp(2rem, 4.4vw, 3.5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1;
}

.ideia {
  max-width: 54ch;
  margin-top: calc(var(--passo) * -0.35);
  color: var(--muted);
  font-size: clamp(0.95rem, 1.15vw, 1.08rem);
  line-height: 1.6;
}

.ideia strong { color: var(--white); font-weight: 500; }

.frentes {
  display: grid;
  gap: 0.72rem;
  width: 100%;
  max-width: 42rem;
  padding: var(--passo) 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  list-style: none;
  text-transform: uppercase;
}

.frentes li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.75rem;
  justify-content: center;
}

.frente-num { color: var(--cyan); font-weight: 500; }
.frente-un { color: var(--muted); }

.contato {
  display: inline-flex;
  align-items: baseline;
  gap: 1rem;
  width: fit-content;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2vw, 1.3rem);
  transition: color 160ms ease, border-color 160ms ease;
}

.contato:hover { color: var(--cyan); border-color: var(--cyan); }
.contato span:last-child { color: var(--cyan); }

.rodape {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  justify-content: center;
  width: 100%;
  max-width: 46rem;
  margin-inline: auto;
  padding-top: var(--passo);
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* janela baixa (laptop com barra do navegador): aperta a escala vertical
   em vez de deixar o cartao rolar */
@media (min-width: 561px) and (max-height: 920px) {
  :root { --pad: clamp(1.5rem, 4vw, 3rem); --passo: 1.05rem; }
  h1 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
  .marca { width: clamp(9rem, 16vw, 12.5rem); }
  .ideia { line-height: 1.5; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}