.signup-wrapper {
  min-height: calc(100vh - 130px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.8rem 0 2.2rem;
}

.signup-card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 1.8rem;
  width: 100%;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 55%),
    radial-gradient(circle at bottom right, rgba(91, 139, 196, 0.16), transparent 55%),
    #020617;
  border-radius: 1.25rem;
  border: 1px solid rgba(148, 163, 184, 0.6);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.9);
  padding: 1.6rem 1.8rem;
}

@media (max-width: 880px) {
  .signup-card {
    grid-template-columns: 1fr;
    padding: 1.4rem 1.3rem;
  }
}

.signup-form-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.signup-form-sub {
  font-size: 0.86rem;
  opacity: 0.8;
  margin-bottom: 1.1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem 0.9rem;
  margin-bottom: 0.6rem;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  font-size: 0.8rem;
}

.form-group span.hint {
  font-size: 0.74rem;
  opacity: 0.7;
  line-height: 1.3;
}

.input {
  border-radius: 0.6rem;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  padding: 0.45rem 0.6rem;
  font-size: 0.86rem;
  outline: none;
}

.input::placeholder {
  color: rgba(148, 163, 184, 0.9);
}

.input:focus {
  border-color: rgba(56, 189, 248, 0.9);
}

.single-row {
  margin-top: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.78rem;
}

.checkbox-line {
  display: flex;
  gap: 0.45rem;
  align-items: flex-start;
}

.checkbox-line input {
  margin-top: 0.05rem;
}

.signup-submit {
  margin-top: 0.9rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  border: none;
  border-radius: 999px;
  padding: 0.45rem 1.4rem;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(135deg, #5b8bc4, #0ea5e9);
  color: #020617;
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary-link {
  font-size: 0.78rem;
  opacity: 0.85;
}

.btn-secondary-link a {
  color: #38bdf8;
}

.alert.ok {
  background: rgba(91, 139, 196, 0.15);
  border: 1px solid rgba(91, 139, 196, 0.5);
  color: #a9c8e5;
}

.signup-info-tag {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.8);
  background: rgba(15, 23, 42, 0.95);
  font-size: 0.75rem;
  color: #bae6fd;
  margin-bottom: 0.5rem;
}

.signup-info-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.signup-info-text {
  font-size: 0.8rem;
  opacity: 0.8;
  margin-bottom: 0.8rem;
  line-height: 1.6;
}

.signup-info-list {
  list-style: none;
  font-size: 0.8rem;
}

.signup-info-list li {
  margin-bottom: 0.4rem;
  padding-left: 0.9rem;
  position: relative;
  opacity: 0.9;
}

.signup-info-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: #8badd6;
}

.signup-note {
  margin-top: 0.8rem;
  font-size: 0.74rem;
  opacity: 0.7;
}

.password-wrap {
  position: relative;
}

.password-wrap .password-input {
  padding-right: 2.5rem;
  width: 100%;
}

.pw-toggle {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.3rem;
  transition: color 0.15s;
}

.pw-toggle:hover {
  color: #e5e7eb;
}