* { box-sizing: border-box; }
:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --panel: #f1f5f9;
  --muted: #475569;
  --text: #0b0c10;
  --primary: #1a73e8;
  --primary-contrast: #ffffff;
  --ok: #16a34a;
  --warn: #b45309;
  --danger: #dc2626;
  --border: #d4dbe5;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(2,6,23,0.08);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0c10;
    --surface: #11131a;
    --panel: #161a22;
    --muted: #96a1b2;
    --text: #e6edf3;
    --primary: #1a73e8;
    --primary-contrast: #081425;
    --border: #2b3340;
    --shadow: 0 6px 24px rgba(0,0,0,0.35);
  }
}
html, body { background: var(--bg); color: var(--text); margin: 0; font-family: var(--font); line-height: 1.45; }
.container { max-width: 980px; margin: 0 auto; padding: 24px; }
header .brand { display: flex; align-items: center; gap: 12px; }
header h1 { margin: 0; font-size: 1.8rem; }
header .brand small.domain { display:block; color: var(--muted); margin-top: 2px; }
.tagline { color: var(--muted); margin-top: 6px; }
#progress { display: grid; grid-auto-flow: column; gap: 8px; margin: 12px 0 24px; }
.step-dot { padding: 8px 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }
.step-dot.active { color: var(--text); border-color: var(--primary); outline: 2px solid rgba(26,115,232,0.18); }
#step-container { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; min-height: 140px; }
fieldset { border: none; margin: 0; padding: 0; display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-weight: 600; }
input[type="text"], input[type="date"], input[type="tel"], input[type="email"], textarea, select {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  padding: 10px 12px; border-radius: 8px; width: 100%;
}
textarea { min-height: 120px; }
.hint { color: var(--muted); font-size: 0.92rem; }
.actions { display: flex; justify-content: flex-start; gap: 12px; margin-top: 16px; }
.btn { padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
.btn.primary { background: var(--primary); color: var(--primary-contrast); border-color: transparent; }
.btn.secondary { background: var(--panel); }
.btn.danger { background: var(--danger); color: #fff; border-color: transparent; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.helper details { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin: 10px 0; }
.divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
ul.inline { display: flex; flex-wrap: wrap; gap: 8px; padding-left: 0; list-style: none; }
.badge { display: inline-block; padding: 6px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); }
.summary-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.summary-panel h3 { margin-top: 0; }
kbd { background: #222; border: 1px solid var(--border); padding: 2px 6px; border-radius: 6px; color:#fff; }
.print-only { display: none; }
.letterhead { display: none; border-bottom: 2px solid var(--border); padding-bottom: 8px; margin-bottom: 12px; }
.letterhead h2 { margin: 0; font-size: 1.2rem; }
.letterhead small { color: var(--muted); }
@media print {
  body { background: #fff; color: #000; }
  header, .actions, .helper, .footer, #progress { display: none !important; }
  .print-only { display: block; }
  #step-container { border: none; box-shadow: none; }
  .letterhead { display: block; }
  .letter { font-size: 12pt; }
}