/* Site da 4A TECH: cores do cartão e do logotipo (as mesmas do 4A ERP), fontes do sistema, sem nada de fora. */
:root {
  --brand: #0050d0;
  --brand-dark: #003a9c;
  --sky: #0096f0;
  --black: #05070d;
  --ink: #1a1e29;
  --muted: #5b6275;
  --line: #e2e6ef;
  --soft: #f4f7fc;
  --white: #ffffff;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--brand);
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Cabeçalho */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 7, 13, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

.header .logo img {
  width: 150px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  color: #c9ccd6;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--white);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}

.button.primary {
  background: var(--brand);
  color: var(--white);
}

.button.primary:hover {
  background: var(--brand-dark);
}

.button.ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.button.ghost:hover {
  border-color: var(--white);
}

.button.small {
  padding: 8px 16px;
  font-size: 0.9rem;
}

/* Abertura */
.hero {
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(0, 150, 240, 0.28), transparent 60%),
    radial-gradient(800px 400px at 0% 110%, rgba(0, 80, 208, 0.35), transparent 60%),
    var(--black);
  color: var(--white);
  padding: 88px 0 96px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.15;
  margin: 0 0 20px;
  max-width: 760px;
}

.hero h1 span {
  color: var(--sky);
}

.hero p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: #c9ccd6;
  max-width: 680px;
  margin: 0 0 32px;
}

.hero .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding: 0;
  list-style: none;
}

.badges li {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.9rem;
  color: #dfe3ee;
}

/* Seções */
.section {
  padding: 80px 0;
}

.section.alt {
  background: var(--soft);
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 12px;
  line-height: 1.2;
}

.section .lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 0 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #e8f0ff;
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 14px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand);
  background: #e8f0ff;
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 6px;
  vertical-align: middle;
}

/* Planos */
.plans {
  background: linear-gradient(135deg, var(--brand), #0076d7);
  color: var(--white);
  border-radius: 20px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
}

.plans h2 {
  color: var(--white);
}

.plans p {
  color: #e1ecff;
  margin: 0 0 12px;
}

.plans ul {
  margin: 0;
  padding-left: 20px;
  color: #e1ecff;
}

.plans .button.primary {
  background: var(--white);
  color: var(--brand);
}

.plans .button.primary:hover {
  background: #e8f0ff;
}

/* Contato */
.contact {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.contact .card a {
  font-weight: 600;
  text-decoration: none;
  font-size: 1.1rem;
}

/* Rodapé */
.footer {
  background: var(--black);
  color: #a4a9b8;
  padding: 32px 0;
  font-size: 0.9rem;
}

.footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.footer a {
  color: #c9ccd6;
  margin-left: 18px;
}

/* Páginas de texto (termos e privacidade) */
.legal {
  padding: 56px 0 80px;
}

.legal .container {
  max-width: 820px;
}

.legal h1 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.2;
  margin: 0 0 6px;
}

.legal h2 {
  font-size: 1.15rem;
  margin: 32px 0 8px;
}

.legal p,
.legal li {
  color: #2c3242;
}

.legal .meta {
  color: var(--muted);
  margin-bottom: 28px;
}

@media (max-width: 760px) {
  .nav a:not(.button) {
    display: none;
  }

  .plans {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }

  .hero {
    padding: 64px 0 72px;
  }

  .section {
    padding: 56px 0;
  }

  .footer a {
    margin: 0 16px 0 0;
  }
}