:root {
  --bg: #0a0f1c;
  --card: #111827;
  --border: #1f2937;
  --text: #e5e7eb;
  --accent: #a3ff12;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
}

/* HERO */
.hero {
  text-align: center;
  padding: 80px 20px 40px;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
}

.hero h1 span {
  display: block;
  font-size: 2rem;
  color: #9ca3af;
}

.hero p {
  margin-top: 10px;
  color: #9ca3af;
}

/* CONTAINER */
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* GRID */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 40px;
}

/* CARD */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
  transition: 0.3s ease;
  position: relative;
}

.card h2 {
  font-size: 1rem;
}

.card p {
  font-size: 0.8rem;
  color: #9ca3af;
  margin-top: 5px;
}

/* HOVER */
.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 0 15px rgba(163, 255, 18, 0.2);
}

/* BOTÃO */
.repo-btn {
  text-align: center;
  margin: 50px 0;
}

.repo-btn a {
  text-decoration: none;
  padding: 12px 24px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 6px;
  transition: 0.3s;
}

.repo-btn a:hover {
  background: var(--accent);
  color: #000;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid var(--border);
  color: #9ca3af;
}

/* RESPONSIVO */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
}