:root {
  --bg: #0e172a;
  --card: #ea590a;
  --text: #e5e7eb;
  --muted: #6b7280;
  --primary: #2563eb;
  --warn: #ef4444;
  --shadow: 10px 10px 10px rgba(0, 0, 0, 0.08);
}

body {
  font-family: -apple-system, "system-ui", "Segoe UI", sans-serif;
  line-height: 1.6;
  max-width: 900px;
  margin: auto;
  padding: 20px;
  padding-top: 50px;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

#back {
  padding: 10px 10px;
  margin: 15px 0;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 50px;
  color: #8b5cf6;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  font-size: 10px;
}

img {
  width: 80%;
  margin: 20px 0;
  border: 1px solid #ccc;
}

p {
  margin-bottom: 15px;
}

h1 {
  font-size: 1.5em;
  margin-bottom: 10px;
}

#video-link {
  padding: 12px 20px;
  margin: 200px 0;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 50px;
  color: #8b5cf6;
  text-decoration: none;
  font-weight: 900;
  transition: all 0.3s;
  font-size: 14px;
}

#video-link:hover {
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.4);
}

#objectives {
  margin-top: 30px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

td,
th {
  padding: 10px 5px;
  border: 1px solid #ddd;
}