.sub-main { padding: 48px 0 72px; }

.sub-main h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 12px;
}

.sub-main .lead { color: var(--muted); margin-bottom: 28px; }

.sub-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.sub-form label { display: grid; gap: 6px; }

.sub-form span {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
}

.sub-form input,
.sub-form select,
.sub-form textarea {
  font: inherit;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.sub-fine {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.sub-result {
  margin-top: 24px;
  padding: 20px;
  border-radius: 14px;
  background: #e8f8f4;
  border: 1px solid #9fd9cc;
}

.sub-result.error {
  background: #fff0f0;
  border-color: #e8a8a8;
}

.sub-result strong { display: block; margin-bottom: 8px; }