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

:root {
  --color-primary: #c0392b;
  --color-primary-dark: #922b21;
  --color-dark: #1a1a2e;
  --color-gray: #555;
  --color-light: #f4f4f4;
  --color-white: #ffffff;
  --font: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--color-dark);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header */
.header {
  background: var(--color-dark);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo__icon {
  font-size: 2rem;
  color: var(--color-primary);
}

.logo strong {
  display: block;
  font-size: 1.1rem;
}

.logo small {
  font-size: 0.75rem;
  opacity: 0.7;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--color-white);
  font-weight: 500;
  text-decoration: none;
}

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-dark) 60%, var(--color-primary-dark));
  color: var(--color-white);
  padding: 5rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.85rem 2rem;
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

/* Sections */
.section {
  padding: 4rem 0;
}

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

.section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2.5rem;
  color: var(--color-dark);
}

/* Services */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.75rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.section--alt .service-card {
  background: var(--color-white);
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.service-card p {
  color: var(--color-gray);
  font-size: 0.95rem;
}

/* About */
.about p {
  max-width: 700px;
  margin: 0 auto 1rem;
  text-align: center;
  color: var(--color-gray);
}

.about__info {
  list-style: none;
  text-align: center;
  margin-top: 1.5rem;
  color: var(--color-gray);
}

.about__info li {
  margin-bottom: 0.25rem;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  text-align: center;
}

.contact__item h3 {
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.contact__item p {
  color: var(--color-gray);
}

.contact__item a {
  font-weight: 600;
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: 2rem 0;
  font-size: 0.9rem;
}

.footer__cnpj {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 600px) {
  .header__inner {
    flex-direction: column;
    gap: 1rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .nav {
    gap: 1rem;
  }
}