/* ===== 기본 설정 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #1a56db;
  --primary-dark: #1140a0;
  --primary-light: #e8f0fe;
  --success: #0f9d58;
  --success-light: #e6f4ea;
  --danger: #d93025;
  --danger-light: #fce8e6;
  --warning: #f9ab00;
  --warning-light: #fef9e0;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f4;
  --gray-200: #e8eaed;
  --gray-300: #dadce0;
  --gray-400: #bdc1c6;
  --gray-500: #9aa0a6;
  --gray-600: #80868b;
  --gray-700: #5f6368;
  --gray-800: #3c4043;
  --gray-900: #202124;
  --white: #ffffff;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --transition: all 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* ===== 헤더 ===== */
.site-header {
  background: linear-gradient(135deg, #1a56db 0%, #0f3390 100%);
  color: white;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(26,86,219,0.4);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-logo > i {
  font-size: 28px;
  opacity: 0.9;
}

.header-text {
  display: flex;
  flex-direction: column;
}

.header-sub {
  font-size: 11px;
  opacity: 0.8;
  letter-spacing: 0.3px;
}

.header-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.admin-link {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 20px;
  transition: var(--transition);
}

.admin-link:hover {
  background: rgba(255,255,255,0.15);
  color: white;
}

/* ===== 메인 컨텐츠 ===== */
.main-content {
  flex: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 60px;
  width: 100%;
}

/* ===== 스텝 인디케이터 ===== */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 36px;
  padding: 24px 16px;
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}

.step.active .step-circle {
  background: var(--primary);
  color: white;
  box-shadow: 0 0 0 4px var(--primary-light);
}

.step.completed .step-circle {
  background: var(--success);
  color: white;
}

.step-label {
  font-size: 11px;
  color: var(--gray-500);
  font-weight: 500;
  white-space: nowrap;
}

.step.active .step-label {
  color: var(--primary);
  font-weight: 700;
}

.step.completed .step-label {
  color: var(--success);
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--gray-200);
  margin: 0 8px;
  margin-bottom: 24px;
  transition: var(--transition);
}

.step-line.active {
  background: var(--primary);
}

.step-line.completed {
  background: var(--success);
}

/* ===== 폼 섹션 ===== */
.form-section {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 36px;
}

.section-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--gray-100);
}

.section-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-header h2 i {
  color: var(--primary);
}

.section-header p {
  color: var(--gray-600);
  font-size: 14px;
}

.program-name-badge {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-top: 6px;
}

/* ===== 프로그램 카드 ===== */
.program-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.program-card {
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 28px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.program-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.program-card.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}

.program-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.program-icon i {
  font-size: 22px;
  color: var(--primary);
}

.program-card.selected .program-icon {
  background: var(--primary);
}

.program-card.selected .program-icon i {
  color: white;
}

.program-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.program-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.program-subtitle {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.program-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.program-features li {
  font-size: 13px;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  gap: 8px;
}

.program-features li i {
  color: var(--success);
  font-size: 11px;
}

.select-indicator {
  display: none;
  position: absolute;
  top: 16px;
  right: 16px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
}

.program-card.selected .select-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
}

.form-notice {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-600);
  font-size: 13px;
  margin-bottom: 24px;
}

.form-notice i {
  color: var(--primary);
}

/* ===== 폼 요소 ===== */
.form-fieldset {
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  padding: 24px;
  margin-bottom: 20px;
}

.form-fieldset legend {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  padding: 0 8px;
  letter-spacing: 0.3px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

.form-group-full, .form-group.full {
  grid-column: 1 / -1;
}

.form-group label, .field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-800);
}

.required {
  color: var(--danger);
  margin-left: 2px;
}

.field-desc {
  font-size: 12px;
  color: var(--gray-600);
  margin-bottom: 8px;
  line-height: 1.5;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  font-size: 14px;
  font-family: 'Noto Sans KR', sans-serif;
  color: var(--gray-900);
  transition: var(--transition);
  outline: none;
  background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--danger);
}

.error-msg {
  font-size: 12px;
  color: var(--danger);
  min-height: 16px;
}

textarea {
  resize: vertical;
}

/* ===== 라디오 버튼 ===== */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--gray-800);
  padding: 8px 16px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  user-select: none;
}

.radio-label:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.radio-label input[type="radio"] {
  display: none;
}

.radio-custom {
  width: 16px;
  height: 16px;
  border: 2px solid var(--gray-400);
  border-radius: 50%;
  display: inline-block;
  position: relative;
  flex-shrink: 0;
  transition: var(--transition);
}

.radio-label input[type="radio"]:checked + .radio-custom {
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: inset 0 0 0 3px white;
}

.radio-label:has(input:checked) {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

/* ===== 정보 박스 ===== */
.info-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  padding: 14px;
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* ===== 버튼 ===== */
.btn-row {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
  position: relative;  /* 서명 영역 위에 렌더 보장 */
  z-index: 10;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--border-radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: 'Noto Sans KR', sans-serif;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(26,86,219,0.35);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  background: var(--gray-300);
  color: var(--gray-500);
  cursor: not-allowed;
}

.btn-outline {
  background: white;
  color: var(--gray-700);
  border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover {
  background: #0a7a47;
  box-shadow: 0 4px 12px rgba(15,157,88,0.35);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
}

/* ===== 전자서명 ===== */
#sigWrapper {
  border: 2px dashed #d1d5db;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  margin-bottom: 0;
}
#sigWrapper.signed {
  border: 2px solid var(--primary);
}
.sig-label {
  font-size: 13px;
  font-weight: 600;
  color: #6b7280;
  padding: 10px 16px;
  background: #f9fafb;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  gap: 6px;
}
#signatureCanvas {
  display: block;
  width: 100%;
  height: 300px;
  background: #fff;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  cursor: crosshair;
}
.signature-actions {
  margin-top: 12px;
}



/* ===== 검토 화면 ===== */
.review-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: 8px;
}

.review-section-title {
  background: var(--gray-50);
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--gray-200);
  border-top: 1px solid var(--gray-200);
}

.review-section-title i {
  color: var(--primary);
}

.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 0;
}

.review-item {
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-100);
}

.review-item.full {
  grid-column: 1 / -1;
}

.review-label {
  display: block;
  font-size: 12px;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 4px;
}

.review-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
}

.review-value.program-highlight {
  color: var(--primary);
  font-size: 17px;
}

.review-signature {
  padding: 20px;
}

.signature-preview-label {
  font-size: 14px;
  color: var(--gray-700);
  margin-bottom: 12px;
}

.signature-preview-img {
  max-width: 320px;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  background: white;
  display: block;
}

/* ===== 완료 화면 ===== */
.complete-container {
  text-align: center;
  padding: 40px 20px;
}

.complete-icon {
  font-size: 64px;
  color: var(--success);
  margin-bottom: 20px;
}

.complete-container h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 14px;
}

.complete-msg {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 28px;
}

.complete-info {
  display: inline-flex;
  flex-direction: column;
  gap: 10px;
  background: var(--gray-50);
  border-radius: var(--border-radius);
  padding: 20px 32px;
  margin-bottom: 28px;
  text-align: left;
}

.complete-info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--gray-700);
}

.complete-info-item i {
  color: var(--primary);
  width: 16px;
}

.complete-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* ===== 로딩 ===== */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-box {
  background: white;
  border-radius: var(--border-radius);
  padding: 32px 48px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 14px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-box p {
  font-size: 14px;
  color: var(--gray-600);
}

/* ===== 푸터 ===== */
.site-footer {
  background: var(--gray-800);
  color: var(--gray-400);
  text-align: center;
  padding: 18px;
  font-size: 12px;
}

/* ===== 반응형 ===== */
@media (max-width: 768px) {
  .header-sub { display: none; }
  .header-title { font-size: 14px; }
  .main-content { padding: 20px 12px 40px; }
  .form-section { padding: 20px 16px; }
  .program-cards { grid-template-columns: 1fr; gap: 14px; }
  .form-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .step-label { font-size: 10px; }
  .step-indicator { padding: 16px 8px; }
  .btn-row { flex-direction: column-reverse; }
  .btn { justify-content: center; }
  .signature-guide { font-size: 13px; }
}

@media (max-width: 480px) {
  .step-label { display: none; }
  .step-circle { width: 30px; height: 30px; font-size: 12px; }
}

/* ===== 세로 라디오 그룹 ===== */
.radio-group-vertical {
  flex-direction: column;
  gap: 8px;
}

.radio-label-block {
  width: 100%;
  padding: 10px 16px;
  align-items: flex-start;
}

.radio-label-block span:last-child {
  line-height: 1.5;
}

.choice-hint {
  font-size: 12px;
  color: var(--gray-500);
  font-weight: 400;
  margin-left: 4px;
}

/* ===== 파일 업로드 ===== */
.file-upload-area {
  position: relative;
}

.file-upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.file-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 2px dashed var(--gray-300);
  border-radius: var(--border-radius-sm);
  padding: 24px;
  cursor: pointer;
  transition: var(--transition);
  background: var(--gray-50);
  text-align: center;
}

.file-upload-label:hover,
.file-upload-area:has(input:focus) .file-upload-label {
  border-color: var(--primary);
  background: var(--primary-light);
}

.file-upload-label i {
  font-size: 28px;
  color: var(--primary);
}

.file-upload-label span {
  font-size: 14px;
  color: var(--gray-600);
  font-weight: 500;
}

.file-upload-label small {
  font-size: 12px;
  color: var(--gray-400);
}

.file-upload-area.has-file .file-upload-label {
  border-color: var(--success);
  background: var(--success-light);
}

.file-upload-area.has-file .file-upload-label i {
  color: var(--success);
}

.file-upload-area.has-file .file-upload-label span {
  color: var(--success);
}

/* ===== 관리자 공통 ===== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger  { background: var(--danger-light);  color: var(--danger);  }
.badge-warning { background: var(--warning-light); color: #b06a00; }
.badge-primary { background: var(--primary-light); color: var(--primary); }