:root {
  --bg: #0f172a;
  --panel: #111827;
  --card: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #22c55e;
  --danger: #ef4444;
}

* { box-sizing: border-box; }
body {
  margin: 0; padding: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: linear-gradient(180deg, var(--bg), #020617);
  color: var(--text);
}
.navbar { position: sticky; top: 0; z-index: 50; background: var(--panel); border-bottom: 1px solid #1f2937; }
.nav-inner { max-width: 980px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 8px; }
.brand { color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: .3px; }
.spacer { flex: 1; }
.nav-text { color: var(--muted); margin-right: 8px; }
.nav-btn { padding: 8px 12px; }
.container { max-width: 800px; margin: 40px auto; padding: 0 16px; }
h1 { font-weight: 700; margin-bottom: 16px; }
.card { background: var(--card); border: 1px solid #374151; border-radius: 12px; padding: 16px; margin: 12px 0; box-shadow: 0 10px 30px rgba(0,0,0,0.25); }
.row { display: flex; align-items: center; gap: 8px; margin: 8px 0; flex-wrap: wrap; }
label { display:block; margin-bottom: 8px; color: var(--muted); }
input, textarea { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid #334155; background: #0b1220; color: var(--text); position: relative; z-index: 1; }
textarea { min-height: 100px; }
.btn { background: #0b1220; border: 1px solid #334155; color: var(--text); padding: 10px 14px; border-radius: 8px; cursor: pointer; transition:.15s; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; line-height: 1.2; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,0,0,0.25); }
.btn.primary { background: var(--primary); border-color: transparent; color: #052e16; font-weight: 700; }
.btn.danger { background: var(--danger); border-color: transparent; color: #3f0a0a; font-weight: 700; }
.nav-btn { font-size: 14px; line-height: 1.2; min-height: 36px; font-weight: 600; }
.muted { color: var(--muted); }
.hidden { display: none; }
ul { padding-left: 20px; }
.question { font-size: 1.1rem; margin-bottom: 8px; }

/* Space between fields and following buttons */
input + .btn,
textarea + .btn,
input + button,
textarea + button,
select + .btn,
select + button {
  margin-top: 8px; /* matches existing 8px rhythm */
}

/* Mobile-friendly adjustments */
@media (max-width: 640px) {
  .container { margin: 20px auto; padding: 0 12px; }
  .nav-inner { padding: 8px 12px; }
  .nav-btn { width: auto; }
  h1 { font-size: 1.4rem; }
  .card { padding: 12px; }

  /* Prevent iOS zoom on focus by ensuring >=16px font */
  input, textarea, button, .btn { font-size: 16px; }

  /* Stack controls and make them easy to tap */
  .row { flex-direction: column; align-items: stretch; gap: 10px; }
  .row .btn, .row a.btn { width: 100%; text-align: center; padding: 12px 14px; }

  /* Larger tap targets */
  .btn { padding: 12px 14px; touch-action: manipulation; }

  /* Lists and text wrapping */
  ul { padding-left: 16px; }
  .question { font-size: 1rem; }
  code { word-break: break-word; }

  /* Textarea height on small screens */
  textarea { min-height: 80px; }
}