html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  text-shadow: 1px 1px 1px #000;
}

canvas {
  position: fixed;
  z-index: -1;
  width: 100%;
  height: 100%;
}

header {
  position: absolute;
  width: 100%;
  text-align: center;
}

header h1 {
  font-size: 2rem;
  margin: 0.5em 0 0.2em;
}

a {
  font-size: 0.9rem;
  color: #bbb;
  text-decoration: none;
  border-bottom: 0.15rem solid transparent;
  transition: all 0.4s;
}
a:hover {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.7);
}

/* Color Controls Modal */
:root {
  --control-bg: rgba(0, 0, 0, 0.65);
  --control-text: #ffffff;
  --control-border: rgba(255, 255, 255, 0.3);
}

#color-controls {
  position: fixed;
  top: 1rem;
  left: 1rem;
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  border-radius: 0.75rem;
  padding: 0.75rem;
  z-index: 2;
  min-width: 240px;
}

#color-controls .controls-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

#color-controls h2 {
  margin: 0;
  font-size: 1rem;
}

#color-controls .controls-toggle {
  border: 1px solid var(--control-border);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.15);
  color: var(--control-text);
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
}

#color-controls.collapsed .controls-body {
  display: none;
}

#color-controls label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  gap: 0.5rem;
}

#color-controls input[type="color"] {
  width: 3rem;
  height: 2rem;
  border: none;
  background: transparent;
  padding: 0;
}

#color-controls .controls-body button {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--control-border);
  background: rgba(255, 255, 255, 0.15);
  color: var(--control-text);
  font-size: 0.9rem;
  cursor: pointer;
}

#color-controls .controls-body button:hover {
  background: rgba(255, 255, 255, 0.25);
}