:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --ink: #1f2933;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --border: #d8dee9;
  --ok: #15803d;
  --err: #b91c1c;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  margin: 0;
  line-height: 1.5;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; }

header h1 { font-size: 22px; margin: 0 0 4px; }
header p { color: var(--muted); margin: 0 0 24px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }

input[type="text"], input[type="email"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
}

textarea { min-height: 160px; resize: vertical; }

.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.secondary { background: #e5e7eb; color: var(--ink); }

.muted { color: var(--muted); font-size: 13px; }
.ok { color: var(--ok); }
.err { color: var(--err); }

.signer-block {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
}

.step { opacity: 0.45; pointer-events: none; }
.step.active { opacity: 1; pointer-events: auto; }
.step h3 { margin: 0 0 8px; font-size: 16px; }

canvas#pad {
  width: 100%;
  height: 180px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  touch-action: none;
}

iframe.pdf {
  width: 100%;
  height: 460px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.pill.pending { background: #fef3c7; color: #92400e; }
.pill.completed { background: #dcfce7; color: #166534; }

code { background: #f1f5f9; padding: 1px 6px; border-radius: 4px; font-size: 13px; }
a { color: var(--accent); }