:root {
  --bg: #ffffff;
  --text: #111111;
  --primary: #4f46e5;
  --card: #f3f4f6;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --text: #f1f5f9;
  --primary: #60a5fa;
  --card: #1e293b;
}

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

body {
  background: var(--bg);
  color: var(--text);
  transition: 0.3s;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

/* HEADER */
header {
  background: var(--card);
  padding: 15px 0;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

ul {
  display: flex;
  gap: 15px;
  list-style: none;
}

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

/* HERO */
.hero {
  padding: 50px 0;
}

/* PROJETOS */
#lista-projetos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.card {
  background: var(--card);
  padding: 15px;
  border-radius: 10px;
}

/* BOTÃO TEMA */
button {
  padding: 8px 12px;
  border: none;
  cursor: pointer;
  border-radius: 5px;
  background: var(--primary);
  color: white;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  margin-top: 30px;
}