* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
  background: #f4f6f8;
  color: #1f2933;
}

.page-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px;
}

.survey-header {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
}

.logo-box {
  width: 90px;
  height: 90px;
  border-radius: 18px;
  background: #1f4e79;
  color: #ffffff;
  font-weight: 700;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-name {
  margin: 0 0 6px;
  color: #4b5563;
  font-size: 15px;
}

h1 {
  margin: 0;
  font-size: 30px;
  color: #111827;
}

.survey-desc {
  margin: 8px 0 0;
  color: #4b5563;
  line-height: 1.6;
}

.survey-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

h2 {
  margin-top: 0;
}

.help-text {
  color: #6b7280;
  line-height: 1.6;
}

.input-row {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

input[type="text"] {
  flex: 1;
  padding: 14px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 16px;
}

button {
  border: none;
  border-radius: 10px;
  background: #1f4e79;
  color: #ffffff;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  opacity: 0.92;
}

button:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.hidden {
  display: none;
}

.respondent-box {
  background: #f3f7fb;
  border: 1px solid #d6e4f0;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
}

.respondent-box p {
  margin: 6px 0;
}

.question-card {
  border-top: 1px solid #e5e7eb;
  padding: 24px 0;
}

.question-title {
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.6;
}

.scale-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.scale-option {
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
  cursor: pointer;
  background: #ffffff;
}

.scale-option input {
  margin-bottom: 6px;
}

.scale-option:hover {
  background: #f9fafb;
}

.submit-area {
  margin-top: 28px;
  text-align: center;
}

.submit-area button {
  min-width: 180px;
}

.message {
  margin-top: 16px;
  font-weight: 700;
}

.message.error {
  color: #dc2626;
}

.message.success {
  color: #047857;
}