* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  background: #f0f4f8; color: #1e2532; font-size: 14px;
  min-height: 100vh; display: flex; align-items: flex-start;
  justify-content: center; padding: 40px 16px;
}

.card { background: #fff; border-radius: 16px; border: 1px solid #e2e8f0; width: 100%; max-width: 620px; overflow: hidden; }

.card-header { background: linear-gradient(135deg, #1a2340 0%, #1f3a5f 100%); padding: 32px 40px 24px; text-align: center; }
.logo { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: -0.5px; margin-bottom: 4px; }
.logo span { color: #5b8af8; }
.logo-sub { font-size: 12px; color: #90afd4; }

.card-body { padding: 32px 40px 40px; }

.section-title { font-size: 13px; font-weight: 700; color: #2d3748; border-left: 3px solid #5b8af8; padding-left: 10px; margin: 28px 0 16px; }
.section-title:first-of-type { margin-top: 0; }

.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.col-full { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

label { font-size: 13px; font-weight: 600; color: #4a5568; }
.req { color: #e53e3e; margin-left: 2px; }

input[type=text], input[type=email], input[type=password], input[type=tel], select {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid #e2e8f0; border-radius: 8px;
  font-size: 14px; color: #1e2532; outline: none;
  transition: border-color 0.15s; background: #fff; font-family: inherit;
}
input:focus, select:focus { border-color: #5b8af8; box-shadow: 0 0 0 3px rgba(91,138,248,0.12); }
.field-error { border-color: #e53e3e !important; }

.error-msg { font-size: 12px; color: #e53e3e; }
.helper { font-size: 11px; color: #a0aec0; }

.account-box {
  background: #f0f5ff;
  border: 1.5px solid #c3d4fd;
  border-radius: 12px;
  padding: 20px 24px 24px;
  margin-top: 28px;
}
.account-box-header { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.account-box-icon {
  width: 36px; height: 36px;
  background: #5b8af8; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.account-box-title { font-size: 14px; font-weight: 700; color: #2d3748; }
.account-box-desc { font-size: 12px; color: #718096; margin-top: 2px; }
.account-box input[type=text],
.account-box input[type=password] { background: #fff; border-color: #c3d4fd; }
.account-box input:focus { border-color: #5b8af8; }

.divider { border: none; border-top: 1px solid #edf2f7; margin: 28px 0 0; }

.btn-row { display: flex; gap: 12px; margin-top: 28px; }
.btn-outline { flex: 0 0 auto; padding: 11px 20px; background: #fff; color: #4a5568; font-size: 14px; font-weight: 500; border: 1.5px solid #e2e8f0; border-radius: 8px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; font-family: inherit; }
.btn-outline:hover { background: #f7fafc; border-color: #cbd5e0; }
.btn-primary { flex: 1; padding: 12px; background: #5b8af8; color: #fff; font-size: 15px; font-weight: 600; border: none; border-radius: 8px; cursor: pointer; font-family: inherit; }
.btn-primary:hover { background: #4472e8; }