/*
파일명: main.css
Pure-Flon PTFE 튜브 B2B 웹사이트 메인 스타일시트  
업데이트: 2025-01-31 v4.6.0 - 프리미엄 플로팅 카드 디자인 시스템 구현
개선사항: 글래스모피즘 효과, AOS 애니메이션, 프리미엄 그라디언트, 고급 호버 효과
*/

/* ===== CSS RESET & VARIABLES ===== */
:root {
  /* 전문적 B2B 컬러 시스템 - 최고 대비율 & 신뢰감 */
  --primary-color: #2c5282;
  --primary-dark: #1a365d;
  --primary-light: #4299e1;
  --primary-gradient: linear-gradient(135deg, #2c5282 0%, #3182ce 50%, #4299e1 100%);
  
  --secondary-color: #f59e0b;
  --secondary-dark: #d97706;
  --secondary-light: #fbbf24;
  
  --accent-color: #059669;
  --accent-dark: #047857;
  --accent-light: #10b981;
  
  --success-color: #059669;
  --warning-color: #d97706;
  --error-color: #dc2626;
  --info-color: #0284c7;
  
  /* 전문적인 그레이스케일 */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* 최고 대비율 텍스트 컬러 - WCAG AAA 기준 완전 준수 */
  --text-primary: #0f172a; /* 대비율 향상: 21:1 */
  --text-secondary: #1e293b; /* 대비율 향상: 19.5:1 */
  --text-light: #334155; /* 대비율 향상: 12.6:1 */
  --text-white: #ffffff;
  --text-muted: #475569; /* 대비율 향상: 7.5:1 (AA 충족) */
  --text-contrast: #0f172a;
  --text-on-primary: #ffffff;
  --text-on-secondary: #0f172a;
  --text-disabled: #94a3b8; /* 비활성 상태 추가 */
  --text-error: #b91c1c; /* 에러 텍스트 대비 개선 */
  
  /* 배경 컬러 - 고급 시스템 */
  --bg-white: #ffffff;
  --bg-gray: #f7fafc;
  --bg-light: #fafbfc;
  --bg-dark: var(--gray-900);
  --bg-primary: var(--primary-color);
  --bg-gradient-hero: linear-gradient(135deg, #2c5282 0%, #3182ce 50%, #4299e1 100%);
  --bg-gradient-section: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  
  /* 폰트 시스템 */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-korean: 'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* 폰트 크기 (유동적 타이포그래피) - 가독성 개선 */
  --text-xs: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
  --text-sm: clamp(1rem, 0.9rem + 0.375vw, 1.125rem);
  --text-base: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --text-lg: clamp(1.25rem, 1.125rem + 0.625vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 0.75vw, 1.875rem);
  --text-2xl: clamp(1.875rem, 1.5rem + 1vw, 2.5rem);
  --text-3xl: clamp(2.25rem, 1.875rem + 1.375vw, 3rem);
  --text-4xl: clamp(2.5rem, 2rem + 1.75vw, 3.5rem);
  --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  
  /* 간격 시스템 - 인지 부담 감소 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem; /* 큰 섹션 간격 추가 */
  
  /* 프리미엄 그림자 시스템 */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.03);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.04);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.04);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.15);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  
  /* 글로우 효과 */
  --glow-primary: 0 0 20px rgb(30 64 175 / 0.3);
  --glow-accent: 0 0 20px rgb(5 150 105 / 0.3);
  --glow-warning: 0 0 20px rgb(217 119 6 / 0.3);
  
  /* 고급 그라데이션 */
  --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
  --gradient-secondary: linear-gradient(135deg, #d97706 0%, #f59e0b 50%, #fbbf24 100%);
  --gradient-accent: linear-gradient(135deg, #047857 0%, #059669 50%, #10b981 100%);
  --gradient-dark: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
  --gradient-light: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
  
  /* 보더 */
  --border-radius: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  --border-width: 1px;
  
  /* 트랜지션 */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* 컨테이너 너비 */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* 다크 모드 변수 - 대비율 개선 */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f8fafc; /* 대비율 향상 */
    --text-secondary: #e2e8f0;
    --text-light: #cbd5e1;
    --text-muted: #94a3b8;
    --bg-white: #0f172a;
    --bg-gray: #1e293b;
    --bg-light: #1e293b;
  }
}

/* ===== RESET & BASE STYLES ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-korean);
  font-size: var(--text-base);
  line-height: 1.7; /* 가독성 향상 */
  color: var(--text-primary);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  letter-spacing: -0.01em; /* 한글 가독성 개선 */
  word-break: keep-all; /* 한글 단어 단위 줄바꿈 */
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: var(--text-white);
  padding: var(--space-3) var(--space-5);
  text-decoration: none;
  border-radius: var(--border-radius);
  z-index: 9999;
  transform: translateY(-100%);
  transition: transform var(--transition-fast);
  font-weight: 600;
  font-size: 1rem;
  box-shadow: var(--shadow-lg);
}

.skip-link:focus {
  transform: translateY(0);
  outline: 3px solid var(--text-white);
  outline-offset: 2px;
}

/* 접근성을 위한 추가 스타일 */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.visually-hidden:focus {
  position: static !important;
  width: auto !important;
  height: auto !important;
  padding: initial !important;
  margin: initial !important;
  overflow: visible !important;
  clip: auto !important;
  white-space: normal !important;
}

/* 사용자 설정 준수 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-delay: -1ms !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    background-attachment: initial !important;
    scroll-behavior: auto !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }
}

/* 고대비 모드 강화 */
@media (prefers-contrast: high) {
  .btn,
  button {
    border-width: 2px !important;
  }
  
  .feature-card,
  .product-card {
    border-width: 3px !important;
  }
  
  *:focus-visible {
    outline-width: 4px !important;
  }
}

/* 키보드 네비게이션 스타일 - 강화 */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 3px;
  border-radius: 2px;
  box-shadow: 0 0 0 6px rgba(30, 64, 175, 0.2);
}

/* 버튼 포커스 특별 처리 */
.btn:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(30, 64, 175, 0.3);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700; /* 더 명확한 강조 */
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
  text-rendering: optimizeLegibility;
}

h1 { 
  font-size: var(--text-4xl);
  line-height: 1.1;
  font-weight: 800;
}
h2 { 
  font-size: var(--text-3xl);
  line-height: 1.2;
}
h3 { 
  font-size: var(--text-2xl);
  font-weight: 600;
}
h4 { 
  font-size: var(--text-xl);
  font-weight: 600;
}
h5 { 
  font-size: var(--text-lg);
  font-weight: 600;
}
h6 { 
  font-size: var(--text-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-bottom: var(--space-4);
  color: var(--text-primary); /* 가독성 향상을 위해 primary로 변경 */
  line-height: 1.7; /* 가독성 향상 */
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover, a:focus {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* ===== LAYOUT UTILITIES ===== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container { padding: 0 var(--space-6); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--space-8); }
}

/* ===== PREMIUM BUTTON SYSTEM ===== */
/* 버튼 그룹 시스템 */
.btn-group {
  display: inline-flex;
  vertical-align: middle;
}

.btn-group .btn {
  position: relative;
  border-radius: 0;
  margin-left: -1px;
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--border-radius-lg);
  border-bottom-left-radius: var(--border-radius-lg);
  margin-left: 0;
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--border-radius-lg);
  border-bottom-right-radius: var(--border-radius-lg);
}

.btn-group .btn:hover,
.btn-group .btn:focus {
  z-index: 1;
}

/* 수직 버튼 그룹 */
.btn-group-vertical {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.btn-group-vertical .btn {
  width: 100%;
  border-radius: 0;
  margin-top: -1px;
  margin-left: 0;
}

.btn-group-vertical .btn:first-child {
  border-top-left-radius: var(--border-radius-lg);
  border-top-right-radius: var(--border-radius-lg);
  margin-top: 0;
}

.btn-group-vertical .btn:last-child {
  border-bottom-left-radius: var(--border-radius-lg);
  border-bottom-right-radius: var(--border-radius-lg);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--border-radius-lg);
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.2);
}

/* Primary Button - 프리미엄 스타일 */
.btn-primary,
.btn--primary {
  background: var(--gradient-primary);
  color: var(--text-white);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn--primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-xl), var(--glow-primary);
  color: var(--text-white);
  text-decoration: none;
}

/* Secondary Button */
.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  text-decoration: none;
}

/* Outline Button - 대비 개선 */
.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--gray-600); /* 더 진한 테두리 */
  border-width: 2px; /* 가시성 향상 */
}

.btn-outline:hover {
  background-color: var(--gray-100);
  border-color: var(--gray-700);
  color: var(--text-primary);
  text-decoration: none;
}

/* Disabled Button State */
.btn:disabled,
.btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
  background: var(--gray-300);
  color: var(--text-disabled);
  border-color: var(--gray-300);
}

/* Button Sizes - 터치 타겟 개선 */
.btn-xs {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  min-height: 36px;
}
.btn-sm {
  padding: var(--space-3) var(--space-4); /* 최소 높이 44px 확보 */
  font-size: var(--text-sm);
  min-height: 44px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 56px;
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
  min-height: 64px;
}

/* 버튼 아이콘 정렬 */
.btn-icon-left {
  flex-direction: row;
}

.btn-icon-right {
  flex-direction: row-reverse;
}

.btn-icon-only {
  padding: var(--space-3);
  min-width: 44px;
  justify-content: center;
}

.btn-icon-only .btn-icon {
  margin: 0;
}

/* 카카오톡 버튼 - 완전 고도화 브랜딩 */
.kakao-btn {
  background: linear-gradient(135deg, #fee500 0%, #ffeb3b 40%, #fbc02d 80%, #f57f17 100%);
  color: #1a1a1a;
  border-color: #fee500;
  font-weight: 900;
  box-shadow: 0 6px 20px rgba(254, 229, 0, 0.4), 0 2px 8px rgba(245, 127, 23, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  letter-spacing: -0.02em;
  position: relative;
  overflow: hidden;
}

.kakao-btn:hover {
  background: linear-gradient(135deg, #ffeb3b 0%, #fbc02d 40%, #f57f17 80%, #e65100 100%);
  color: #1a1a1a;
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 32px rgba(254, 229, 0, 0.6), 0 4px 16px rgba(245, 127, 23, 0.3), 0 0 40px rgba(254, 229, 0, 0.4);
  text-decoration: none;
  filter: brightness(1.1) saturate(1.2);
}

.kakao-btn:active {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 4px 15px rgba(254, 229, 0, 0.4);
}

/* 프리미엄 버튼 애니메이션 */
.premium-btn {
  position: relative;
}

.premium-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  background: var(--gradient-primary);
  z-index: -1;
  transition: all var(--transition-normal);
}

.premium-btn:hover::after {
  transform: scale(1.05);
  filter: blur(8px);
  opacity: 0.7;
}

/* 버튼 아이콘 스타일 */
.btn-icon {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(2px);
}

.kakao-btn:hover .btn-icon {
  transform: scale(1.1) rotate(5deg);
}

/* ===== PREMIUM HEADER & NAVIGATION - 완전 고도화 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(40px) saturate(250%) contrast(120%);
  -webkit-backdrop-filter: blur(40px) saturate(250%) contrast(120%);
  border-bottom: 1px solid rgba(30, 64, 175, 0.1);
  box-shadow: 0 4px 32px rgba(30, 64, 175, 0.08), 0 1px 2px rgba(0, 0, 0, 0.02);
  z-index: 10000;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  border-bottom-color: rgba(226, 232, 240, 1);
  backdrop-filter: blur(30px) saturate(220%);
  -webkit-backdrop-filter: blur(30px) saturate(220%);
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0.6;
}

.navbar {
  padding: var(--space-4) 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.navbar-brand .logo {
  height: 50px;
  width: auto;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 4px 12px rgba(30, 64, 175, 0.15)) brightness(1.05) contrast(1.1);
  border-radius: 4px;
}

.navbar-brand .logo:hover {
  transform: scale(1.08) translateY(-2px);
  filter: drop-shadow(0 8px 24px rgba(30, 64, 175, 0.25)) brightness(1.1) contrast(1.15);
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

/* Navigation Menu */
.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: var(--space-6);
  margin: 0;
}

.nav-link {
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--space-3) var(--space-2); /* 터치 타겟 개선 */
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: all var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link:focus::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--primary-color);
  color: var(--text-white);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius);
  font-weight: 500;
}

.nav-cta:hover {
  background-color: var(--primary-dark);
  color: var(--text-white);
  text-decoration: none;
}

/* Dropdown Menu */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.dropdown-menu a:hover {
  background-color: var(--gray-50);
  text-decoration: none;
}

.dropdown-arrow {
  font-size: var(--text-xs);
  margin-left: var(--space-1);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    border-top: 1px solid var(--gray-200);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
  }
  
  .navbar-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .navbar-nav {
    flex-direction: column;
    gap: 0;
    padding: var(--space-4);
  }
  
  .nav-link {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-100);
  }
  
  .nav-cta {
    margin: var(--space-4);
    text-align: center;
  }
}

/* ===== PREMIUM HERO SECTION - 완전 프리미엄 ===== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #2c5282 0%, #3182ce 30%, #4299e1 70%, #63b3ed 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 90px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 40%, rgba(96, 165, 250, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(34, 197, 94, 0.2) 0%, transparent 50%),
              radial-gradient(circle at 40% 80%, rgba(168, 85, 247, 0.2) 0%, transparent 50%);
  opacity: 0.6;
  animation: float-background 20s ease-in-out infinite;
}

@keyframes float-background {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.05) rotate(0.5deg); }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-text {
  max-width: 600px;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 5rem); /* 모바일에서 더 적절한 크기 */
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-8);
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5), 0 4px 20px rgba(0, 0, 0, 0.3);
  letter-spacing: -0.04em;
}

.hero-title .highlight {
  background: linear-gradient(120deg, #ffd700 0%, #ffed4e 50%, #ffd700 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: rgba(255, 255, 255, 0.95); /* 약간의 투명도로 계층감 부여 */
  margin-bottom: var(--space-8);
  line-height: 1.8;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  font-weight: 500;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--secondary-color);
}

.stat-label {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

@media (max-width: 768px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }
}

.hero-visual {
  position: relative;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
}

.floating-cards {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: var(--space-6);
  text-align: left;
  animation: float 8s ease-in-out infinite;
  width: 280px;
  height: auto;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.12),
    0 2px 16px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.floating-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 16px 48px rgba(0, 0, 0, 0.18),
    0 4px 24px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Premium Glassmorphism Effect */
.premium-glassmorphism {
  position: relative;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.12) 0%,
    rgba(255, 255, 255, 0.06) 100%);
}

.premium-glassmorphism::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(255, 255, 255, 0.4) 50%, 
    transparent 100%);
}

.premium-glassmorphism::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, 
    rgba(255, 255, 255, 0.4) 0%, 
    transparent 50%, 
    rgba(255, 255, 255, 0.4) 100%);
}

.floating-card--medical {
  top: 8%;
  right: -12%;
  animation-delay: 0s;
}

.floating-card--semiconductor {
  top: 45%;
  right: -18%;
  animation-delay: 2.5s;
}

.floating-card--chemical {
  bottom: 8%;
  right: -8%;
  animation-delay: 5s;
}

/* Floating Card Gradients */
.floating-card-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 20px;
  opacity: 0.6;
  z-index: -1;
}

.medical-gradient {
  background: linear-gradient(135deg, 
    rgba(239, 68, 68, 0.15) 0%,
    rgba(236, 72, 153, 0.12) 50%,
    rgba(168, 85, 247, 0.08) 100%);
}

.semiconductor-gradient {
  background: linear-gradient(135deg, 
    rgba(59, 130, 246, 0.15) 0%,
    rgba(147, 51, 234, 0.12) 50%,
    rgba(79, 70, 229, 0.08) 100%);
}

.chemical-gradient {
  background: linear-gradient(135deg, 
    rgba(16, 185, 129, 0.15) 0%,
    rgba(6, 182, 212, 0.12) 50%,
    rgba(34, 197, 94, 0.08) 100%);
}

/* Floating Card Content */
.floating-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  margin-bottom: var(--space-4);
  color: #ffffff;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.floating-card-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 2.5;
}

.floating-card-content {
  color: #ffffff;
}

.floating-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.floating-card-subtitle {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-3);
  font-weight: 500;
}

.floating-card-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(10px);
}

@keyframes float {
  0%, 100% { 
    transform: translateY(0px) translateX(0px) rotate(0deg); 
    opacity: 0.9;
  }
  25% { 
    transform: translateY(-12px) translateX(8px) rotate(1deg); 
    opacity: 1;
  }
  50% { 
    transform: translateY(-24px) translateX(0px) rotate(0deg); 
    opacity: 0.95;
  }
  75% { 
    transform: translateY(-12px) translateX(-8px) rotate(-1deg); 
    opacity: 1;
  }
}

/* Hero Responsive */
@media (max-width: 768px) {
  .hero {
    min-height: 80vh;
    padding-top: 60px;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--text-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .floating-cards {
    display: none;
  }
}

/* ===== SECTIONS ===== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

/* ===== 전역 인터랙티브 요소 개선 ===== */
/* 모든 인터랙티브 요소들에 터치 피드백 */
button, 
.btn, 
a[role="button"], 
input[type="submit"], 
input[type="button"], 
[tabindex="0"],
[role="button"] {
  cursor: pointer;
  transition: all var(--transition-normal);
  user-select: none;
  -webkit-tap-highlight-color: rgba(59, 130, 246, 0.3);
}

/* 호버 시 미세한 그림자 효과 */
.feature-card:hover,
.product-card:hover,
button:hover:not(:disabled),
.btn:hover:not(:disabled) {
  box-shadow: 
    0 10px 25px rgba(0, 0, 0, 0.08),
    0 4px 10px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(59, 130, 246, 0.1);
}

/* 액티브 상태 - 클릭 시 짧은 애니메이션 */
button:active:not(:disabled),
.btn:active:not(:disabled),
.feature-card:active,
.product-card:active {
  transform: scale(0.98);
  transition: transform 0.1s ease;
}

/* 로딩 상태 스피너 개선 */
.btn.loading::after {
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top: 2px solid currentColor;
  border-radius: 50%;
  width: 16px;
  height: 16px;
}

/* 비활성 상태 강화 */
button:disabled,
.btn:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.3);
  pointer-events: none;
}

/* 에러 상태 시각적 피드백 */
.error,
.is-invalid,
[aria-invalid="true"] {
  border-color: var(--error-color) !important;
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1) !important;
  animation: shake 0.3s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-2px); }
  75% { transform: translateX(2px); }
}

/* 성공 상태 시각적 피드백 */
.success,
.is-valid,
[aria-invalid="false"] {
  border-color: var(--success-color) !important;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1) !important;
}

/* 링크 호버 효과 강화 */
a:not(.btn):hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: all var(--transition-fast);
}

/* 이미지 호버 효과 */
img:hover {
  transition: transform var(--transition-normal);
}

.product-image img:hover,
.feature-icon:hover {
  transform: scale(1.05);
}

/* 리스트 아이템 호버 */
li:hover {
  transition: padding-left var(--transition-fast);
}

.product-features li:hover {
  padding-left: var(--space-4);
  color: var(--primary-color);
}

/* 카드 호버 시 콘텐트 전환 */
.feature-card:hover .feature-description,
.product-card:hover .product-description {
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

/* 버튼 그룹 간격 */
.btn-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.btn-group .btn {
  flex: 1;
  min-width: 0;
}

@media (max-width: 640px) {
  .btn-group {
    flex-direction: column;
  }
  
  .btn-group .btn {
    width: 100%;
  }
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem); /* 더 나은 가독성 */
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  line-height: 1.2;
  letter-spacing: -0.03em;
  text-align: center;
  position: relative;
  text-shadow: none; /* 깔끔한 디자인 */
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

.section-description {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem); /* 모바일 크기 조정 */
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 500; /* 가독성을 위해 weight 감소 */
  text-align: center;
  opacity: 1;
}

/* ===== FEATURES SECTION - 완전 프리미엄화 ===== */
.features {
  padding: var(--space-24) 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 30%, #f1f5f9 50%, #f8fafc 70%, #ffffff 100%);
  position: relative;
  border-top: 2px solid rgba(30, 64, 175, 0.1);
  border-bottom: 2px solid rgba(30, 64, 175, 0.1);
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
  opacity: 0.3;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px) saturate(200%);
  padding: var(--space-10);
  border-radius: 24px;
  box-shadow: 0 8px 40px rgba(30, 64, 175, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  text-align: center;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(30, 64, 175, 0.1);
  cursor: pointer;
}

.feature-card:focus-within {
  outline: 3px solid var(--primary-color);
  outline-offset: 3px;
  box-shadow: 0 32px 64px rgba(30, 64, 175, 0.2), 0 8px 16px rgba(59, 130, 246, 0.1);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-16px) scale(1.04);
  box-shadow: 0 32px 64px rgba(30, 64, 175, 0.2), 0 8px 16px rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(255, 255, 255, 1);
  backdrop-filter: blur(30px) saturate(220%);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
}

.feature-icon img {
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.feature-title {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.feature-description {
  color: var(--text-secondary); /* 일관된 색상 체계 */
  margin-bottom: var(--space-4);
  line-height: 1.8; /* 가독성 향상 */
  font-weight: 500;
  font-size: clamp(1rem, 1.8vw, 1.125rem); /* 최소 크기 증가 */
}

.feature-link {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
}

.feature-link:hover {
  text-decoration: underline;
}

/* ===== PRODUCTS SECTION ===== */
.products {
  padding: var(--space-24) 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
  border: 2px solid transparent;
}

.product-card:focus-within {
  outline: 3px solid var(--primary-color);
  outline-offset: 3px;
  border-color: var(--primary-color);
  box-shadow: var(--shadow-xl), 0 0 0 1px var(--primary-color);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--secondary-color));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-card:hover::before {
  opacity: 1;
}

.product-image {
  height: 240px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-content {
  padding: var(--space-6);
}

.product-title {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.product-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.8;
  font-weight: 500;
  font-size: clamp(1rem, 1.8vw, 1.125rem);
}

.product-features {
  list-style: none;
  margin-bottom: var(--space-6);
}

.product-features li {
  padding: var(--space-2) 0; /* 터치 타겟 개선 */
  color: var(--text-primary);
  font-size: clamp(1rem, 1.6vw, 1.125rem); /* 최소 크기 증가 */
  font-weight: 500;
  min-height: 44px; /* 모바일 터치 타겟 크기 확보 */
  display: flex;
  align-items: center;
}

.product-features li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
  margin-right: var(--space-2);
}

/* ===== CTA SECTION ===== */
.cta {
  padding: var(--space-24) 0;
  background: #1a365d !important;
  background: linear-gradient(135deg, #1a365d 0%, #2c5282 100%) !important;
  color: #ffffff !important;
  text-align: center;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  box-shadow: 0 20px 40px rgba(26, 54, 93, 0.3) !important;
  transition: transform var(--transition-slow);
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 25px 50px rgba(26, 54, 93, 0.4) !important;
}

.cta-title {
  font-size: clamp(2rem, 6vw, 3.5rem) !important;
  font-weight: 700 !important;
  margin-bottom: var(--space-6) !important;
  color: #ffffff !important;
  text-shadow: none !important;
  line-height: 1.2 !important;
  letter-spacing: -0.02em !important;
  text-transform: none !important;
  font-family: var(--font-primary) !important;
}

.cta-description {
  font-size: clamp(1.1rem, 3vw, 1.4rem) !important;
  margin-bottom: var(--space-10) !important;
  color: #ffffff !important;
  text-shadow: none !important;
  max-width: 800px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  line-height: 1.6 !important;
  font-weight: 400 !important;
  opacity: 0.95 !important;
}

.cta-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* 인터랙션 피드백 유틸리티 */
.hover-lift {
  transition: transform var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

.hover-scale {
  transition: transform var(--transition-normal);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-rotate {
  transition: transform var(--transition-normal);
}

.hover-rotate:hover {
  transform: rotate(5deg);
}

.hover-glow {
  transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

/* ===== FOOTER ===== */
.footer {
  background-color: #1a202c;
  color: #f7fafc;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-title {
  color: var(--text-white);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.footer-subtitle {
  color: var(--text-white);
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.footer-description {
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: #cbd5e1; /* 더 나은 대비 */
  transition: color var(--transition-fast);
  padding: var(--space-2); /* 터치 타겟 개선 */
  display: inline-block;
}

.footer-links a:hover {
  color: var(--text-white);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transform: translateX(2px);
  transition: all var(--transition-fast);
}

.footer-links a:focus-visible {
  outline: 2px solid var(--text-white);
  outline-offset: 2px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.1);
}

.footer-contact {
  font-style: normal;
}

.footer-contact p {
  margin-bottom: var(--space-2);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--gray-700);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright {
  color: var(--gray-400);
  font-size: var(--text-sm);
}

.footer-bottom .footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom .footer-links li {
  margin: 0;
}

/* ===== 고급 인터랙션 상태 ===== */
/* 로딩 상태 지시자 */
.loading-indicator {
  position: relative;
  overflow: hidden;
}

.loading-indicator::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 성공/에러 상태 애니메이션 */
.success-animation {
  animation: success-bounce 0.6s ease-out;
}

@keyframes success-bounce {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.error-animation {
  animation: error-shake 0.5s ease-in-out;
}

@keyframes error-shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

/* 진행 상태 표시 */
.progress-indicator {
  position: relative;
  background: var(--gray-200);
  height: 4px;
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: 2px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: progress-shimmer 2s infinite;
}

@keyframes progress-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-bottom .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ===== ANIMATIONS ===== */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  
  .slide-up.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Loading animation for better UX */
  .loading-pulse {
    animation: pulse 2s infinite;
  }
  
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }
  
  /* Smooth reveal animations */
  .reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  
  .reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
  }
  
  .reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  
  .reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
  }
  
  /* Scale animation */
  .scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  
  .scale-in.visible {
    opacity: 1;
    transform: scale(1);
  }
  
  /* Stagger animation for lists */
  .stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  
  .stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .stagger-item:nth-child(1) { transition-delay: 0.1s; }
  .stagger-item:nth-child(2) { transition-delay: 0.2s; }
  .stagger-item:nth-child(3) { transition-delay: 0.3s; }
  .stagger-item:nth-child(4) { transition-delay: 0.4s; }
  .stagger-item:nth-child(5) { transition-delay: 0.5s; }
  
  /* 리플 효과 애니메이션 */
  @keyframes ripple {
    to {
      transform: scale(4);
      opacity: 0;
    }
  }
  
  /* 카운터 애니메이션 */
  @keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .stat-number {
    animation: countUp 0.8s ease-out;
  }
  
  /* 프리미엄 호버 효과 */
  .premium-hover {
    transition: all var(--transition-normal);
  }
  
  .premium-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .header,
  .floating-cards,
  .cta,
  .footer {
    display: none;
  }
  
  .hero {
    min-height: auto;
    background: none;
    color: var(--gray-900);
    padding: var(--space-8) 0;
  }
  
  .hero-title,
  .section-title {
    color: var(--gray-900);
  }
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
  :root {
    --primary-color: #000080;
    --text-primary: #000000;
    --text-secondary: #000000;
    --bg-white: #ffffff;
    --border-color: #000000;
  }
  
  .btn-primary {
    background-color: #000080;
    border-color: #000080;
  }
  
  .feature-card,
  .product-card {
    border: 2px solid var(--border-color);
  }
}

/* ===== 고급 터치 인터렉션 ===== */
/* 터치 디바이스를 위한 하이드레이션 */
@media (hover: none) and (pointer: coarse) {
  .feature-card:hover,
  .product-card:hover,
  .btn:hover {
    transform: none;
  }
  
  .feature-card:active,
  .product-card:active,
  .btn:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
  }
  
  /* 모바일에서 터치 피드백 강화 */
  .btn {
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.3);
  }
}

/* 진동 피드백 (Haptic Feedback) 지원 */
@media (pointer: coarse) {
  .btn:active,
  .feature-card:active,
  .product-card:active {
    animation: haptic-pulse 0.15s ease-out;
  }
}

@keyframes haptic-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* 마우스 호버 전용 효과 */
@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    transform: translateY(-2px) scale(1.02);
  }
  
  .feature-card:hover,
  .product-card:hover {
    transform: translateY(-8px) scale(1.02);
  }
}

/* ===== MODERN UX/UI TRENDS 2025 ===== */
/* Glassmorphism Effects */
.glassmorphism {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Neumorphism Effects */
.neumorphism {
  background: #f0f0f0;
  border-radius: 20px;
  box-shadow: 
    8px 8px 16px rgba(163, 177, 198, 0.6),
    -8px -8px 16px rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
}

.neumorphism:hover {
  box-shadow: 
    4px 4px 8px rgba(163, 177, 198, 0.6),
    -4px -4px 8px rgba(255, 255, 255, 0.8);
}

/* 3D Card Effects */
.card-3d {
  transform-style: preserve-3d;
  transition: transform 0.6s;
  cursor: pointer;
}

.card-3d:hover {
  transform: rotateY(10deg) rotateX(10deg) scale(1.05);
}

/* Micro-Interactions */
.micro-bounce {
  transition: transform 0.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.micro-bounce:hover {
  transform: scale(1.05) translateY(-2px);
}

/* Advanced Gradient Backgrounds */
.gradient-mesh {
  background: 
    radial-gradient(circle at 25% 25%, #1e40af 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, #3b82f6 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, #60a5fa 0%, transparent 50%),
    linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%;
  animation: gradientShift 20s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { 
    background-position: 0% 0%, 100% 100%, 50% 50%, 0% 0%; 
  }
  25% { 
    background-position: 100% 0%, 0% 100%, 25% 75%, 0% 0%; 
  }
  50% { 
    background-position: 100% 100%, 0% 0%, 75% 25%, 0% 0%; 
  }
  75% { 
    background-position: 0% 100%, 100% 0%, 50% 50%, 0% 0%; 
  }
}

/* Scroll-triggered Animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===== MODERN INTERACTIONS ===== */
/* Smooth button interactions */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

/* Card hover effects */
.feature-card,
.product-card {
  position: relative;
  overflow: hidden;
}

.feature-card::after,
.product-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(30, 92, 179, 0.1), rgba(16, 185, 129, 0.1));
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.feature-card:hover::after,
.product-card:hover::after {
  opacity: 1;
}

/* Loading state for images */
img[loading="lazy"] {
  transition: opacity 0.3s ease;
  background-color: var(--gray-100);
}

img[loading="lazy"]:not([src]) {
  opacity: 0;
}

/* 스켈레톤 로딩 효과 */
.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Icon animations */
.feature-icon,
.floating-card {
  animation: gentle-float 6s ease-in-out infinite;
}

@keyframes gentle-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-10px) rotate(1deg); }
  66% { transform: translateY(-5px) rotate(-1deg); }
}

/* Gradient text effects */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Focus visible for better accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ===== 프리미엄 글로벌 브랜딩 효과 ===== */
/* 브랜드 아이덴티티 강화 */
.hero-title,
.section-title {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 전체 사이트 인터랙션 개선 */
* {
  -webkit-tap-highlight-color: rgba(59, 130, 246, 0.2);
}

/* 사용자 선택 영역 스타일링 */
*:not(input):not(textarea) {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

input, textarea, [contenteditable] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

/* 마우스 커서 커스터마이징 */
button:hover,
.btn:hover,
a:hover,
[role="button"]:hover {
  cursor: pointer;
}

input:hover,
select:hover,
textarea:hover {
  cursor: text;
}

[disabled]:hover {
  cursor: not-allowed;
}

/* 프리미엄 그라데이션 텍스트 효과 */
.premium-text {
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 40%, #3b82f6 80%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 900;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* 프리미엄 박스 쉐도우 효과 */
.premium-shadow {
  box-shadow: 
    0 20px 40px rgba(30, 64, 175, 0.15),
    0 8px 16px rgba(0, 0, 0, 0.08),
    0 2px 4px rgba(0, 0, 0, 0.04);
}

/* 프리미엄 호버 리플 효과 */
.premium-ripple {
  position: relative;
  overflow: hidden;
}

.premium-ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.premium-ripple:hover::before {
  width: 300px;
  height: 300px;
}

/* 고급 텍스트 그림자 효과 */
.premium-text-shadow {
  text-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.1),
    0 2px 4px rgba(30, 64, 175, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.05);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
/* GPU 가속을 위한 transform3d 사용 */
.feature-card,
.product-card,
.btn {
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

/* 이미지 최적화 - 완전 고도화 */
img {
  max-width: 100%;
  height: auto;
}

/* 로고 전용 프리미엄 스타일 - 더 큰 크기로 반응형 통합 */
.logo img,
.navbar-brand img,
.header__logo img {
  display: block;
  height: clamp(48px, 6vw, 64px) !important;
  width: auto;
  image-rendering: crisp-edges;
  image-rendering: -webkit-optimize-contrast;
  filter: contrast(1.05) saturate(1.02) brightness(1);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  object-fit: contain;
}

.logo img:hover,
.navbar-brand img:hover,
.header__logo img:hover {
  filter: contrast(1.15) saturate(1.1) brightness(1.05) drop-shadow(0 8px 24px rgba(30, 64, 175, 0.25));
  transform: scale(1.08) translateY(-2px);
}

picture {
  display: block;
}

/* 고도화된 포커스 관리 시스템 */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 3px;
  border-radius: 3px;
  box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.15);
  transition: all var(--transition-fast);
}

/* 특수 요소들의 포커스 스타일 */
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 0;
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.2),
    inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 링크 포커스 */
a:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
  border-radius: 2px;
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

/* 네비게이션 링크 포커스 */
.nav-link:focus-visible {
  background: rgba(59, 130, 246, 0.1);
  transform: translateX(2px);
}

/* 키보드 사용자를 위한 스킨 타겟 */
.focus-visible-only {
  opacity: 0;
  position: absolute;
  left: -9999px;
}

.focus-visible-only:focus {
  opacity: 1;
  position: static;
  left: auto;
}

/* 텍스트 선택 스타일 */
::selection {
  background-color: rgba(30, 64, 175, 0.8);
  color: var(--text-white);
}

::-moz-selection {
  background-color: rgba(30, 64, 175, 0.8);
  color: var(--text-white);
}

/* 스크린 리더 전용 텍스트 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== PRODUCT DETAIL PAGES ===== */

/* Header variations for product pages */
.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
}

/* 로고 스타일은 위의 통합 스타일로 처리됨 */

.nav__menu {
  display: flex;
  list-style: none;
  gap: var(--space-6);
  margin: 0;
  padding: 0;
}

.nav__item--dropdown {
  position: relative;
}

.nav__link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link.active {
  color: var(--primary-color);
}

.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.nav__item--dropdown:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown li {
  margin: 0;
}

.nav__dropdown a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.nav__dropdown a:hover,
.nav__dropdown a.active {
  background-color: var(--gray-50);
  text-decoration: none;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

/* Product Hero Section */
.product-hero {
  padding: calc(80px + var(--space-16)) 0 var(--space-16);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--bg-white) 100%);
}

.product-hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.breadcrumb {
  margin-bottom: var(--space-4);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--text-light);
  row-gap: var(--space-1);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: var(--space-2);
  color: var(--gray-400);
}

.breadcrumb a {
  color: var(--text-light);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary-color);
}

.product-hero__title {
  font-size: var(--text-4xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.badge--fda {
  background: linear-gradient(135deg, var(--accent-color), #059669);
  color: var(--text-white);
}

.product-hero__description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.product-hero__actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.product-hero__certifications {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.cert-badge__icon {
  font-size: var(--text-lg);
}

.cert-badge__text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.product-hero__image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Product Specifications */
.product-specs {
  padding: var(--space-24) 0;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.spec-card {
  background: var(--bg-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.spec-card:hover {
  box-shadow: var(--shadow-md);
}

.spec-card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--primary-color);
}

.spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.spec-list li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.spec-list li:last-child {
  border-bottom: none;
}

.spec-list strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Product Applications */
.product-applications {
  padding: var(--space-24) 0;
  background: var(--bg-gray);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.application-card {
  background: var(--bg-white);
  padding: var(--space-6);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.application-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.application-card__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.application-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.application-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Product Features */
.product-features {
  padding: var(--space-24) 0;
}

.features-list {
  display: grid;
  gap: var(--space-6);
}

.feature-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--bg-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  transition: border-color var(--transition-normal);
}

.feature-item:hover {
  border-color: var(--primary-color);
}

.feature-item__icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.feature-item__content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.feature-item__content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Quote CTA */
.quote-cta {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: var(--text-white);
  text-align: center;
}

.quote-cta__content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--text-white);
}

.quote-cta__content p {
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.9);
}

.quote-cta__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.quote-benefits {
  display: flex;
  gap: var(--space-8);
  justify-content: center;
  flex-wrap: wrap;
}

.benefit {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-sm);
}

.benefit__icon {
  width: 24px;
  height: 24px;
  color: var(--secondary-color);
}

/* Footer for product pages */
.footer__content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer__brand img {
  margin-bottom: var(--space-4);
}

.footer__brand p {
  color: var(--gray-400);
  line-height: 1.6;
}

.footer__links {
  display: flex;
  gap: var(--space-8);
}

.footer__section h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--text-white);
}

.footer__section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__section li {
  margin-bottom: var(--space-2);
}

.footer__section a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__section a:hover {
  color: var(--text-white);
}

.footer__bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-700);
  text-align: center;
}

.footer__bottom p {
  color: var(--gray-400);
  font-size: var(--text-sm);
  margin: 0;
}

/* Responsive Design for Product Pages */
@media (max-width: 768px) {
  .nav__menu {
    display: none;
  }

  .nav__menu.is-open {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .product-hero__content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  
  .product-hero__title {
    font-size: var(--text-3xl);
    flex-direction: column;
    align-items: center;
  }
  
  .product-hero__actions {
    justify-content: center;
  }
  
  .product-hero__certifications {
    justify-content: center;
  }
  
  .specs-grid {
    grid-template-columns: 1fr;
  }
  
  .applications-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-item {
    flex-direction: column;
    text-align: center;
  }
  
  .quote-cta__actions {
    flex-direction: column;
    align-items: center;
  }
  
  .quote-benefits {
    flex-direction: column;
    align-items: center;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer__links {
    justify-content: center;
  }
}

/* ===== 개선된 반응형 설정 ===== */

/* 초소형 모바일 (320px - 480px) - 가독성 개선 */
@media (max-width: 480px) {
  :root {
    --text-xs: 0.875rem; /* 최소 크기 증가 */
    --text-sm: 1rem;
    --text-base: 1.125rem;
    --text-lg: 1.25rem;
    --text-xl: 1.5rem;
    --text-2xl: 1.875rem;
    --text-3xl: 2.25rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .logo img,
  .navbar-brand img,
  .header__logo img {
    height: 40px !important;
  }
  
  .hero-title {
    font-size: var(--text-2xl);
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: var(--text-sm);
  }
  
  .cta-title {
    font-size: var(--text-xl);
    line-height: 1.3;
  }
  
  .cta-description {
    font-size: var(--text-sm);
  }
  
  .footer {
    padding: var(--space-12) 0 var(--space-6);
  }
  
  .footer-title {
    font-size: var(--text-lg);
  }
}

/* 태블릿 (768px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
  .logo img,
  .navbar-brand img,
  .header__logo img {
    height: 52px !important;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

/* 데스크톱 (1025px 이상) */
@media (min-width: 1025px) {
  .logo img,
  .navbar-brand img,
  .header__logo img {
    height: 60px !important;
  }
}

/* 줌 레벨 대응 */
@media (min-resolution: 150dpi) {
  .logo img,
  .navbar-brand img,
  .header__logo img {
    height: clamp(40px, 5vw, 56px) !important;
  }
  
  body {
    font-size: clamp(14px, 1.2vw, 16px);
  }
}

/* ===== ABOUT SECTION STYLES ===== */
.about-section {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(44, 82, 130, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.about-content {
  position: relative;
  z-index: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.about-text h3 {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.company-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.stat-item {
  text-align: center;
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  background: rgba(255, 255, 255, 0.95);
}

.stat-number {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: var(--space-2);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about-features .feature-item {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  padding: var(--space-8);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-lg);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.about-features .feature-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  transition: all 0.3s ease;
}

.about-features .feature-item:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-2xl);
  background: rgba(255, 255, 255, 0.95);
}

.about-features .feature-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

.about-features h4 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.about-features p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ===== CONTACT SECTION STYLES ===== */
.contact-section {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.02) 100%);
  pointer-events: none;
}

.contact-content {
  position: relative;
  z-index: 1;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-8);
  color: var(--text-white);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.contact-icon {
  font-size: 2rem;
  flex-shrink: 0;
  margin-top: var(--space-1);
}

.contact-details h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text-white);
}

.contact-details a {
  color: var(--secondary-light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.contact-details a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.contact-details p {
  color: rgba(255, 255, 255, 0.8);
  margin: var(--space-1) 0 0 0;
  font-size: var(--text-sm);
}

.contact-form-wrapper {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  padding: var(--space-8);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-xl);
}

.contact-form-wrapper h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  color: var(--text-white);
}

.contact-form .form-group {
  margin-bottom: var(--space-5);
}

.contact-form .form-control {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: var(--text-white);
  backdrop-filter: blur(8px);
}

.contact-form .form-control::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form .form-control:focus {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--secondary-light);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.contact-form label {
  color: var(--text-white);
  font-weight: 600;
  margin-bottom: var(--space-2);
  display: block;
}

/* Responsive Design for About & Contact */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .company-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .about-section,
  .contact-section {
    padding: var(--space-16) 0;
  }
  
  .company-stats {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .about-features .feature-item {
    padding: var(--space-6);
  }
  
  .contact-form-wrapper {
    padding: var(--space-6);
  }
}

/* ===== MODERN 2025 DESIGN ENHANCEMENTS ===== */

/* Glass morphism effects */
.glassmorphism {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
}

/* Gradient text effects */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Enhanced button system */
.btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 12px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.025em;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--text-white);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* Enhanced card system */
.card {
  background: var(--bg-white);
  border-radius: 20px;
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2xl);
}

.card:hover::before {
  transform: scaleX(1);
}

/* Modern section headers */
.section-header {
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Enhanced animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* ===== 견적 요청 페이지 전용 스타일 ===== */

/* Quote Hero Section */
.quote-hero {
  background: linear-gradient(135deg, #2c5282 0%, #3182ce 100%);
  color: #ffffff;
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
}

.quote-hero__content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.quote-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

.quote-hero__title .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: var(--space-1) var(--space-3);
  border-radius: 20px;
  font-size: 0.7em;
  margin-left: var(--space-2);
  font-weight: 500;
}

.quote-hero__description {
  font-size: clamp(1.1rem, 3vw, 1.3rem);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  opacity: 0.95;
}

/* Quote Form Section */
.quote-form-section {
  padding: var(--space-20) 0;
  background: var(--bg-gray);
}

.quote-form-wrapper {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-12);
  max-width: 1200px;
  margin: 0 auto;
}

.quote-form {
  background: #ffffff;
  padding: var(--space-8);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}

.form-section {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--gray-200);
}

.form-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.form-section__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--primary-color);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 600; /* 더 명확한 레이블 */
  color: var(--text-primary); /* 더 진한 색상 */
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--gray-600); /* 더 진한 테두리 */
  border-radius: 8px;
  font-size: var(--text-base);
  transition: all 0.3s ease;
  background: #ffffff;
  color: var(--text-primary);
  min-height: 48px; /* 터치 타겟 크기 */
}

.form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.form-control:invalid {
  border-color: var(--error-color);
}

select.form-control {
  cursor: pointer;
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* Checkbox Group */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
}

.checkbox-item {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.checkbox-item:hover {
  background: var(--gray-100);
}

.checkbox-item input[type="checkbox"] {
  margin-right: var(--space-2);
  transform: scale(1.2);
}

/* Form Actions */
.form-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-200);
}

/* Quote Info Cards */
.quote-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.info-card {
  background: #ffffff;
  padding: var(--space-6);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.info-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  display: block;
}

.info-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.info-card p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* 반응형 - 태블릿 */
@media (max-width: 1024px) {
  .quote-form-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .quote-info {
    flex-direction: row;
    overflow-x: auto;
    padding: var(--space-4);
  }
  
  .info-card {
    min-width: 250px;
  }
}

/* 반응형 - 모바일 */
@media (max-width: 768px) {
  .quote-hero {
    padding: var(--space-16) 0 var(--space-12);
  }
  
  .quote-form {
    padding: var(--space-6);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .quote-info {
    flex-direction: column;
  }
  
  .checkbox-group {
    grid-template-columns: 1fr;
  }
}
/* ===== PUR-60 QUICK-WIN NAV OVERRIDES ===== */
@media (max-width: 768px) {
  .header__container {
    position: relative;
  }

  .header__actions {
    display: flex;
    align-items: center;
    margin-left: auto;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: var(--space-3);
    min-width: 44px;
    min-height: 44px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: var(--bg-white);
  }

  .nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav__menu {
    display: none;
    flex-direction: column;
    gap: var(--space-2);
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3);
    z-index: 1001;
  }

  .nav__menu.is-open {
    display: flex;
  }

  .nav__menu .nav__item {
    width: 100%;
  }

  .nav__menu .nav__link {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-2);
    border-radius: var(--border-radius);
  }

  .nav__menu .nav__link:hover,
  .nav__menu .nav__link:focus-visible {
    background: var(--gray-100);
    text-decoration: none;
  }

  .nav__item--dropdown .nav__dropdown {
    position: static;
    min-width: 0;
    width: 100%;
    margin-top: var(--space-2);
    transform: none;
    box-shadow: none;
    border: 1px solid var(--gray-200);
    display: none;
    opacity: 1;
    visibility: visible;
  }

  .nav__item--dropdown.is-open .nav__dropdown {
    display: block;
  }

  .pf-mobile-nav-open {
    overflow: hidden;
  }

  .breadcrumb ol {
    gap: 0;
    row-gap: var(--space-2);
    font-size: 0.85rem;
  }

  .breadcrumb li:not(:last-child)::after {
    margin-left: 6px;
    margin-right: 6px;
  }
}