/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  text-decoration: none;
  color: #2a9d8f;
  transition: color 0.3s ease;
}

a:hover {
  color: #21867a;
}

/* NAVBAR */
.navbar {
  background-color: #264653;
  color: #fff;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.logo img {
  width: 40px;
  height: 40px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links li a {
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
}

.nav-links li a:hover {
  color: #2a9d8f;
}

/* MAIN CONTENT */
main {
  flex: 1;
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* HERO */
.hero {
  background: linear-gradient(135deg, #2a9d8f, #264653);
  color: white;
  padding: 3rem 2rem;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 3rem;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.button {
  padding: 0.8rem 1.8rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
  border: none;
  display: inline-block;
  text-align: center;
}

.button.primary {
  background-color: #e76f51;
  color: white;
}

.button.primary:hover {
  background-color: #d3543c;
}

.button.secondary {
  background-color: #2a9d8f;
  color: white;
}

.button.secondary:hover {
  background-color: #1f6e72;
}

/* SECTIONS (about, ranking, training) */
section {
  margin-bottom: 3rem;
}

section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #264653;
  font-weight: 700;
}

.about-preview p,
.training-preview p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #555;
}

/* Lista do ranking */
.ranking-preview ul {
  list-style: none;
  padding-left: 1rem;
  color: #333;
}

.ranking-preview ul li {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

/* Link simples para chamadas nas seções */
.button-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: #2a9d8f;
  font-weight: 600;
}

.button-link:hover {
  color: #1f6e72;
  text-decoration: underline;
}

/* FOOTER */
footer {
  background-color: #264653;
  color: white;
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 600px) {
  .nav-links {
    flex-direction: column;
    gap: 0.8rem;
  }

  .hero h2 {
    font-size: 1.8rem;
  }

  main {
    margin: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
  }
}