/* RESET BASE */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* BODY */
body {
  font-family: "Arial", Arial, sans-serif;
  background: radial-gradient(1200px 600px at top, #121826, #070a10);
  color: #f5f7fa;
  padding: 32px;
  min-height: 100vh;
}

/* TITOLO */
h1 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 32px;
  letter-spacing: 0.5px;
}

/* CONTENITORE CONTROLLI */
.controls {
  max-width: 1100px;
  margin: 0 auto 32px auto;
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  backdrop-filter: blur(10px);
}

/* LABEL */
label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #b7c0d1;
}

/* INPUT */
input, select {
  margin-top: 8px;
  padding: 10px 2px;
  font-size: 18px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(0, 0, 0, 0.4);
  color: #ffffff;
  outline: none;
  transition: border 0.2s ease, background 0.2s ease;
  text-align: center;
  width: auto;
}

input::placeholder {
  color: #7e889f;
}

input:focus, select:focus {
  border-color: #3ddc84;
  background: rgba(0, 0, 0, 0.6);
}

/* BOTTONE */
button {
  grid-column: 1 / -1;
  margin-top: 10px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: 12px;
  cursor: pointer;
  border: none;
  background: linear-gradient(135deg, #3ddc84, #1db954);
  color: #05130a;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s;
}


/* CANVAS WRAPPER */
canvas {
  display: block;
  margin: 40px auto;
  max-width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow:
    0 25px 60px rgba(0, 0, 0, 0.55),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  transform: scale(0.6);
  transform-origin: top center;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  body {
    padding: 20px;
  }

  h1 {
    font-size: 22px;
  }
}


button#shareBtn {
  background: linear-gradient(135deg, #4da3ff, #1e6fff);
  color: white;
}