:root{
  --kid-pink:#ff70a6;
  --kid-yellow:#ffd670;
  --kid-green:#9cfffa;
  --kid-blue:#70d6ff;
  --kid-purple:#c3a6ff;

  --ink:#0b2239;
  --muted:#5b6b7b;
  --card:#ffffff;
  --shadow:0 12px 30px rgba(0,0,0,.08);
  --radius:20px;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }

body{
  min-height:100vh;
  background:
    radial-gradient(circle at 15% 20%, var(--kid-yellow) 0, transparent 25%),
    radial-gradient(circle at 85% 25%, var(--kid-pink) 0, transparent 30%),
    radial-gradient(circle at 10% 85%, var(--kid-green) 0, transparent 28%),
    radial-gradient(circle at 90% 80%, var(--kid-purple) 0, transparent 25%),
    linear-gradient(135deg, #f7fbff, #e9f7ff 60%, #f9f0ff);
  font-family: system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  color: var(--ink);
}

.hidden{ display:none !important; }

.container{
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.header{ text-align:center; margin-bottom: 20px; }
.title{ margin:0 0 6px; font-size: clamp(28px, 4vw, 42px); font-weight:800; }
.subtitle{ margin:0; color: var(--muted); font-size: 18px; }

.card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin: 16px 0;
}

.card-head{
  padding: 14px 18px;
  font-weight: 800;
  letter-spacing: .3px;
  background: linear-gradient(135deg, var(--kid-blue), var(--kid-purple));
  color: #053b50;
}

.card-body{ padding: 18px; }

.grid-3{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.field{
  flex: 1 1 240px;
  max-width: 100%;
  display: flex;
  flex-direction: column;
}

.label{ font-weight:700; margin-bottom: 6px; }
.help{ font-size: 12px; color: var(--muted); margin-top: 4px; }

input[type="number"],
input[type="text"]{
  padding: 12px 10px;
  border-radius: 12px;
  border: 2px solid #e4ecf4;
  outline: none;
  font-size: 16px;
  background: #fff;
}
input[type="number"]:focus,
input[type="text"]:focus{
  border-color:#9dd9ff;
  box-shadow: 0 0 0 4px rgba(112,214,255,.25);
}

.row{ display:flex; align-items:center; }
.row.gap{ gap:10px; }
.row.between{ justify-content: space-between; }
.space-top{ margin-top: 14px; gap: 10px; flex-wrap: wrap; }

.note{ color: var(--muted); font-size: 14px; }

.btn{
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  cursor: pointer;
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform .05s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn:disabled{ opacity:.55; cursor:not-allowed; }

.btn-pill{ border-radius: 999px; }
.btn-primary{
  color:#073b4c;
  background: linear-gradient(90deg, #ff7aa2, #70d6ff);
}

.badge{
  display:inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight:800;
  font-size: 14px;
  background:#eef6ff;
}
.badge-warn{ background:#ffe99a; color:#4b3b00; }
.badge-good{ background:#c7ffd9; color:#084b2a; }
.badge-info{ background:#cfefff; color:#0a4261; }

.progress{
  flex: 1 1 auto;
  margin: 0 12px;
  height: 14px;
  border-radius: 999px;
  background: #e7f4ff;
  overflow: hidden;
}
.progress-bar{
  height: 100%;
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size: 12px;
  background: linear-gradient(90deg, var(--kid-pink), var(--kid-blue));
  color:#09324a;
}

.center{ text-align:center; }
.h4{ font-size: 18px; margin: 0 0 4px; color:#264653; }
.question{ font-size: clamp(28px, 6vw, 44px); font-weight: 900; margin-bottom: 12px; }

/* Answers (Flexbox two columns) */
.choice-grid{
  display: flex; flex-wrap: wrap; gap: 12px;
  margin: 10px 0 14px;
}
.choice-btn{
  flex: 1 1 calc(50% - 12px);
  max-width: calc(50% - 12px);
  font-size: 20px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 3px solid transparent;
  background: #fff;
  box-shadow: var(--shadow);
}
@media (max-width: 480px){
  .choice-btn{ flex: 1 1 100%; max-width: 100%; font-size: 18px; }
}

.good{ background:#d9ffe8; }
.bad{ background:#ffd9df; }
.outline-good{ border-color:#16a34a; }
.outline-bad{ border-color:#dc2626; }

.feedback{ font-weight:800; min-height: 24px; }
.text-good{ color:#0a6a36; }
.text-bad{ color:#a61b2b; }

.summary-title{ font-size: clamp(26px, 4.5vw, 40px); font-weight:900; margin-bottom: 8px; }
.summary-text{ font-size: 18px; }

.footer{
  text-align:center;
  color: var(--muted);
  margin-top: 18px;
  font-size: 14px;
}

/* Celebration overlay */
.flash-overlay{
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at 30% 35%, rgba(255,255,255,0.95), rgba(255,215,0,0.85), transparent 55%),
    radial-gradient(circle at 70% 65%, rgba(112,214,255,0.95), rgba(195,166,255,0.75), transparent 55%);
  transition: opacity 250ms ease;
  z-index: 9999;
}
.flash-overlay.show{ opacity: 1; }
.flash-overlay.animate{
  animation: flashPop 800ms ease forwards;
}
@keyframes flashPop{
  0% { opacity: 0; transform: scale(1); }
  15% { opacity: 1; transform: scale(1.02); }
  60% { opacity: 0.85; transform: scale(1); }
  100% { opacity: 0; transform: scale(1); }
}

/* Reduced motion respect */
@media (prefers-reduced-motion: reduce){
  .flash-overlay{
    transition: none;
    animation: none !important;
  }
}