/* VARIÁVEIS GLOBAIS */
:root {
  --bg: #0d1117;
  --card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --subtext: #8b949e;
  --primary: #58a6ff;
  --accent: #238636;
  --hover-card: #1c2128;
}

/* RESET BÁSICO */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* NAVEGAÇÃO */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  background: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo img {
  height: 35px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* HERO SECTION */
.hero {
  text-align: center;
  padding: 100px 20px;
  background: radial-gradient(circle at top, #161b22 0%, #0d1117 100%);
}

.hero img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 3px solid var(--primary);
  object-fit: cover;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

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

.hero p {
  color: var(--subtext);
  max-width: 600px;
  margin: 0 auto 25px;
  font-size: 18px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background 0.3s, transform 0.2s;
}

.btn:hover {
  background: #2ea043;
  transform: translateY(-2px);
}

/* SEÇÕES GERAIS */
section {
  padding: 80px 20px;
  max-width: 1000px;
  margin: auto;
}

h2 {
  margin-bottom: 30px;
  color: var(--primary);
  border-left: 4px solid var(--primary);
  padding-left: 15px;
  font-size: 28px;
}

/* GRID DE CERTIFICAÇÕES E CARDS */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.card {
  background: var(--card);
  padding: 25px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: border-color 0.3s, background 0.3s;
}

.card:hover {
  border-color: var(--primary);
  background: var(--hover-card);
}

/* ESTILO ESPECÍFICO PARA CERTIFICADOS */
.card-cert {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.img-container {
  width: 100%;
  height: 200px;
  margin: 15px 0;
  overflow: hidden;
  border-radius: 8px;
  background: #000;
  border: 1px solid var(--border);
}

.img-certificado {
  width: 100%;
  height: 100%;
  object-fit: contain; /* Mantém a proporção do certificado sem cortar */
  transition: transform 0.3s;
}

.card-cert:hover .img-certificado {
  transform: scale(1.05);
}

.btn-pdf {
  display: inline-block;
  margin-top: 15px;
  padding: 8px 20px;
  font-size: 14px;
  color: var(--primary);
  border: 1px solid var(--primary);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.3s;
}

.btn-pdf:hover {
  background: var(--primary);
  color: #0d1117;
}

/* EXPERIÊNCIA */
#experiencia .card {
  margin-bottom: 20px;
}

#experiencia h3 {
  color: var(--primary);
  margin-bottom: 5px;
}

#experiencia b {
  color: var(--text);
}

#experiencia ul {
  margin-top: 15px;
  padding-left: 20px;
  color: var(--subtext);
}

/* CONTATO */
.contato-item {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
  font-size: 18px;
}

.contato-item i {
  color: var(--primary);
  width: 25px;
  text-align: center;
}

.contato-item a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* FOOTER */
footer {
  text-align: center;
  padding: 40px;
  color: var(--subtext);
  border-top: 1px solid var(--border);
  font-size: 14px;
}

/* RESPONSIVIDADE */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    padding: 20px;
  }
  
  nav div:last-child {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }

  nav a {
    margin: 0 10px;
  }

  .hero h1 {
    font-size: 32px;
  }
}