/* ---------- page shell ---------- */
html, body {
  margin: 0;
  height: 100%;
  font-family: system-ui, Arial, sans-serif;
}
body {
  background: linear-gradient(135deg, #020024 0%, #090979 35%, #00d4ff 100%);
  color: #fff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  margin: 0;
}
p {
  font-size: 1.2rem;
  opacity: 0.8;
}

/* ---------- form ---------- */
form {
  margin-top: 2rem;
  display: grid;
  gap: 0.8rem;
  max-width: 320px;
  width: 90%;
}
input, textarea, button {
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
}
textarea {
  resize: vertical;
  min-height: 100px;
}
button {
  background: #fff;
  color: #090979;
  font-weight: 600;
  cursor: pointer;
}
#status {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* ---------- canvas water ripple ---------- */
#ripple {
  position: fixed;
  inset: 0;
  pointer-events: auto; /* still catch mouse moves */
  z-index: -1;          /* behind everything */
}
main {
  position: relative;
  z-index: 1;           /* keep content above canvas */
}