.register-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(320px, 1.25fr);
  gap: min(5vw, 56px);
  align-items: start;
  padding: 58px min(6vw, 72px) 80px;
}
.register-intro {
  position: sticky;
  top: 92px;
}
.register-intro h1 { font-size: clamp(2.25rem, 5vw, 4rem); }
.register-intro p { color: var(--muted); font-size: 1.08rem; }
.register-note {
  margin-top: 24px;
  background: var(--brand-dark);
  color: white;
  border-radius: 24px;
  padding: 22px;
  display: grid;
  gap: 6px;
}
.register-note span { color: #d8efed; }
.register-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: clamp(20px, 4vw, 34px);
  box-shadow: var(--shadow);
}
fieldset {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px;
  margin: 0 0 18px;
}
legend {
  padding: 0 8px;
  font-weight: 850;
  color: var(--brand-dark);
}
label {
  display: grid;
  gap: 8px;
  font-weight: 700;
  margin-bottom: 16px;
}
input, select, textarea {
  width: 100%;
  border: 1px solid #d8d1c3;
  border-radius: 14px;
  padding: 12px 13px;
  font: inherit;
  color: var(--ink);
  background: #fffdf8;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: 3px solid rgba(11, 93, 90, 0.16);
  border-color: var(--brand);
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.terms-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 10px;
  color: var(--muted);
  font-weight: 600;
}
.terms-row input { width: 18px; margin-top: 4px; }
.submit-btn { width: 100%; border: 0; cursor: pointer; padding: 14px 18px; font-size: 1rem; }
.form-status { color: var(--brand); font-weight: 800; min-height: 24px; }
@media (max-width: 900px) {
  .register-shell { grid-template-columns: 1fr; }
  .register-intro { position: static; }
}
@media (max-width: 640px) {
  .two-col { grid-template-columns: 1fr; }
}