/* 체크앤리뷰 전문 B2B 스타일 */

/* 글로벌 설정 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

body {
  font-family: 'Inter', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  line-height: 1.6;
  color: #374151;
  background: #ffffff;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* 전문적인 애니메이션 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* 전문적인 카드 스타일 */
.business-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 
    0 1px 3px 0 rgba(0, 0, 0, 0.1),
    0 1px 2px 0 rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.business-card:hover {
  border-color: #1e40af;
  box-shadow: 
    0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

/* 전문적인 버튼 스타일 */
.btn-primary {
  background-color: #00A860;
  border: 2px solid #00A860;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.2s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-primary:hover {
  background-color: #00BF70;
  border-color: #00BF70;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid #d1d5db;
  color: #374151;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.2s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: #00A860;
  color: #00A860;
  background-color: #E6F7ED;
}

/* 프로페셔널 헤더 스타일 */
.header-professional {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
}

/* 신뢰도 높은 섹션 스타일 */
.trust-section {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}

/* 통계 숫자 스타일 */
.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: #00A860;
  line-height: 1;
}

/* 서비스 아이콘 스타일 */
.service-icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
}

.service-icon.green {
  background-color: #E6F7ED;
  color: #00A860;
}

.service-icon.primary {
  background-color: #E6F7ED;
  color: #00A860;
}

.service-icon.accent {
  background-color: #E6F7ED;
  color: #10B981;
}

/* 프로세스 스텝 스타일 */
.process-step {
  position: relative;
}

.process-step::after {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(100% + 24px);
  width: calc(100% - 48px);
  height: 2px;
  background-color: #e5e7eb;
  z-index: 1;
}

.process-step:last-child::after {
  display: none;
}

.process-number {
  width: 64px;
  height: 64px;
  background-color: #00A860;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 20px;
  margin: 0 auto 24px auto;
  position: relative;
  z-index: 2;
}

/* 클라이언트 케이스 스타일 */
.case-study {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 32px;
  transition: all 0.3s ease;
}

.case-study:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.case-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  margin-top: 8px;
}

.case-metric .label {
  color: #6b7280;
}

.case-metric .value {
  font-weight: 600;
}

.case-metric .value.positive {
  color: #059669;
}

/* 폼 스타일링 */
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.2s ease;
  background-color: white;
}

.form-input:focus {
  outline: none;
  border-color: #00A860;
  box-shadow: 0 0 0 3px rgba(0, 168, 96, 0.1);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

/* 인터랙티브 링크 */
.interactive-link {
  color: #00A860;
  text-decoration: none;
  font-weight: 600;
  position: relative;
  transition: color 0.2s ease;
}

.interactive-link:hover {
  color: #00BF70;
}

.interactive-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #00A860;
  transition: width 0.3s ease;
}

.interactive-link:hover::after {
  width: 100%;
}

/* 스크롤 인디케이터 */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(to right, #00A860, #00BF70);
  z-index: 9999;
  transition: width 0.25s ease-out;
}

/* 성공/에러 메시지 */
.alert {
  padding: 16px 20px;
  border-radius: 8px;
  margin-top: 16px;
  border-left: 4px solid;
}

.alert-success {
  background-color: #f0fdf4;
  color: #166534;
  border-left-color: #22c55e;
}

.alert-error {
  background-color: #fef2f2;
  color: #dc2626;
  border-left-color: #ef4444;
}

/* 로딩 스피너 */
.loading-spinner {
  border: 3px solid #f3f4f6;
  border-top: 3px solid #00A860;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  display: inline-block;
  margin-right: 8px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 접근성 개선 */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid #00A860;
  outline-offset: 2px;
}

/* 모바일 최적화 */
@media (max-width: 768px) {
  .stat-number {
    font-size: 2.5rem;
  }
  
  .service-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
  
  .process-number {
    width: 48px;
    height: 48px;
    font-size: 16px;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
    margin-bottom: 12px;
  }
  
  .case-study {
    padding: 24px;
  }
}

/* 인쇄 스타일 */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  .business-card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
  .business-card {
    border: 2px solid #000;
  }
  
  .btn-primary {
    border: 2px solid #000;
  }
}

/* 고급스러운 타이포그래피 */
.font-display {
  font-family: 'Inter', 'Pretendard', -apple-system, system-ui, sans-serif !important;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.font-body {
  font-family: 'Manrope', 'Pretendard', -apple-system, system-ui, sans-serif !important;
  letter-spacing: -0.005em;
}

.font-sans {
  font-family: 'Inter', 'Pretendard', -apple-system, system-ui, sans-serif !important;
  letter-spacing: -0.01em;
}

/* 헤딩 스타일 개선 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: #111827;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
}

/* 텍스트 그라데이션 */
.text-gradient {
  background: linear-gradient(135deg, #00A860 0%, #00BF70 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 고급스러운 그림자 효과 */
.luxury-shadow {
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* 부드러운 애니메이션 */
.smooth-transition {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 다크 모드 대응 (선택사항) */
@media (prefers-color-scheme: dark) {
  /* 필요시 다크 모드 스타일 추가 */
}