* { box-sizing: border-box; }

:root{
  --bg1:#0b1020;
  --bg2:#1a1450;
  --bg3:#0f3d5e;

  --card: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.14);

  --text:#eaf0ff;
  --muted: rgba(234,240,255,0.78);

  --accent1:#a78bfa;   
  --accent2:#22d3ee;   
  --accent3:#f472b6;   
  --accent4:#fbbf24;   
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);

  background:
    radial-gradient(circle at top left, rgba(167,139,250,0.35), transparent 45%),
    radial-gradient(circle at top right, rgba(34,211,238,0.25), transparent 50%),
    radial-gradient(circle at bottom, rgba(244,114,182,0.18), transparent 55%),
    linear-gradient(140deg, var(--bg2), var(--bg1) 55%, #081225);
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

#title {
  margin: 0;
  font-size: 2rem;
  letter-spacing: 0.4px;
  background: linear-gradient(90deg, var(--accent2), var(--accent1), var(--accent3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#description {
  margin: 0.5rem 0 1.5rem;
  color: var(--muted);
}

#survey-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.25rem;
  box-shadow: 0 18px 45px rgba(0,0,0,0.45);
  position: relative;
  overflow: hidden;
}

#survey-form::before{
  content:"";
  position:absolute;
  inset:-140px -120px auto auto;
  width:320px;
  height:320px;
  border-radius:50%;
  background: radial-gradient(circle at center, rgba(34,211,238,0.35), transparent 60%);
  filter: blur(2px);
  pointer-events:none;
}

.field {
  margin-bottom: 1rem;
}

label, legend {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 650;
}

input, select, textarea, button {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.20);
  background: rgba(0,0,0,0.22);
  color: var(--text);
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  font: inherit;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

input::placeholder,
textarea::placeholder{
  color: rgba(234,240,255,0.55);
}

input:focus,
select:focus,
textarea:focus{
  border-color: rgba(34,211,238,0.65);
  box-shadow: 0 0 0 4px rgba(34,211,238,0.18);
}

fieldset.field {
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 14px;
  padding: 0.85rem;
  background: rgba(255,255,255,0.04);
}

fieldset.field label {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  margin: 0.55rem 0;
  font-weight: 550;
}

fieldset.field input[type="radio"],
fieldset.field input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent2);
}

button#submit {
  cursor: pointer;
  font-weight: 800;
  border: none;
  background: linear-gradient(90deg, var(--accent4), var(--accent3), var(--accent1));
  color: #0b1020;
  box-shadow: 0 14px 30px rgba(244,114,182,0.18);
}

button#submit:hover{
  transform: translateY(-1px);
  filter: brightness(1.03);
}

button#submit:active{
  transform: translateY(0px) scale(0.99);
}