html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #c2c2c2;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

main {
  min-height: 100vh;
  display: flex;
  margin: 50px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: rgb(194, 194, 194);
}

section {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1.5rem 2rem;
  background: #111; /* leve tom mais claro que o fundo para destacar */
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(255,255,255,0.05);
}

section h2 {
  color: #fff;
  margin-bottom: 1rem;
  border-bottom: 2px solid #ff00d4;
  padding-bottom: 0.3rem;
}

section h3 {
  color: #ff00d4;
  margin-top: 1.5rem;
  margin-bottom: 0.7rem;
}

section h4 {
  color: #ff00d4;
  margin-top: 1.2rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

section h5 {
  color: #ff00d4;
  margin-top: 1rem;
  margin-bottom: 0.4rem;
  font-weight: 500;
}

p {
  line-height: 1.6;
  margin-bottom: 1rem;
}

ul {
  margin-left: 1.3rem;
  margin-bottom: 1rem;
  list-style-type: disc;
}

ul li {
  margin-bottom: 0.4rem;
}

code {
  background-color: #222;
  color: #f876e2;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95rem;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.7);
  margin: 0.8rem auto;
}

/* Ajustes para seu container canvas e botão play */

#canvas-container {
  position: relative; /* essencial para posicionar botão */
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

#canvas-container canvas {
  width: 100%;
  height: auto;
  border: 2px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
}

#play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  padding: 1rem 2rem;
  background-color: #0400ff;
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  z-index: 10;
  box-shadow: 0 0 15px rgba(0,0,0,0.2);
  transition: background-color 0.3s ease;
}

#play-button:hover {
  background-color: #b300aa;
}


footer {
  background-color: #222;
  padding: 20px 10px 10px 10px;

}