/* ==========================================================================
   D1 LOGISTICS CO., LTD. - Official CSS File (Light Theme Version)
   Design Concept: Clean premium white, Deep ocean depth accents, Soft shadows
   ========================================================================== */

/* 1. Design System Tokens & Fonts */
:root {
  /* Color Palette (Light Mode Base) */
  --primary-deep: #005088;    /* Deep Ocean Blue */
  --primary-sky: #00A3E0;     /* Vibrant Sky Blue (D1 Logo Accent) */
  --bg-dark-base: #F8FAFC;    /* Main Body Background (Very Light Slate) */
  --bg-dark-card: rgba(255, 255, 255, 0.85); /* Semi-transparent White */
  --text-white: #0F172A;      /* Main Text (Slate Dark) */
  --text-gray-light: #334155; /* Secondary Body Text */
  --text-gray-muted: #64748B; /* Muted Caption Text */
  --slate-dark: #E2E8F0;      /* Light border color */
  --border-glass: rgba(0, 80, 136, 0.08); /* Soft primary color border */
  --glow-sky: 0 0 15px rgba(0, 163, 224, 0.2);
  --shadow-premium: 0 10px 30px 0 rgba(0, 80, 136, 0.06), 0 1px 3px rgba(0, 0, 0, 0.02);

  /* Fonts */
  --font-primary: 'Outfit', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease-in-out;
}

/* 2. Global Reset & Basic Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark-base);
  color: var(--text-white);
  font-family: var(--font-primary);
  overflow-x: hidden;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

ul {
  list-style: none;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 80, 136, 0.25);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-sky);
}

/* 3. Helper Utilities */
.section-padding {
  padding: 100px 0;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  margin-bottom: 60px;
}

.section-subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.2rem;
  color: var(--primary-sky);
  font-weight: 800;
  display: block;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.05rem;
  color: var(--text-white);
}

.section-desc {
  margin-top: 16px;
  color: var(--text-gray-muted);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.title-bar {
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-deep), var(--primary-sky));
  margin: 16px auto 0 auto;
  border-radius: 2px;
}

.text-center {
  text-align: center;
}

/* Glassmorphism Card base class - Light mode adapted */
.glass-card {
  background: var(--bg-dark-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(0, 163, 224, 0.4);
  box-shadow: 0 15px 35px 0 rgba(0, 80, 136, 0.12);
  transform: translateY(-5px);
}

/* Button UI Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-sky));
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(0, 163, 224, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(0, 163, 224, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--primary-deep);
  border: 1px solid rgba(0, 80, 136, 0.18);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.btn-secondary:hover {
  background: rgba(0, 80, 136, 0.04);
  border-color: var(--primary-sky);
  transform: translateY(-2px);
}

.btn-cta {
  background: transparent;
  color: var(--primary-deep);
  border: 1.5px solid var(--primary-sky);
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-cta:hover {
  background: var(--primary-sky);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 163, 224, 0.4);
  transform: scale(1.03);
}

/* 4. Header & Navigation Styles */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 112px; /* Top Bar (32px) + Header Main (80px) */
  z-index: 1000;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.main-header.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  height: 70px;
  border-bottom: 1px solid var(--slate-dark);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Header Top Bar styling */
.header-top-bar {
  background-color: var(--slate-dark);
  height: 32px;
  font-size: 11px;
  color: #94A3B8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.main-header.scrolled .header-top-bar {
  display: none; /* Hide top bar on scroll */
}

.top-bar-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left {
  font-weight: 600;
  letter-spacing: 0.5px;
}

.top-bar-right .lang-selector {
  display: flex;
  gap: 8px;
  align-items: center;
}

.top-bar-right .flag-link {
  display: inline-block;
  text-decoration: none;
  transition: transform 0.2s;
}

.top-bar-right .flag-link:hover {
  transform: scale(1.2);
}

.top-bar-right .flag-link span {
  display: block;
  width: 18px; /* 국기 아담하고 작게 조정 */
  height: 12px;
  background-size: cover;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.header-container {
  max-width: 1200px;
  height: 80px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.main-header.scrolled .header-container {
  height: 70px;
}

.logo-link {
  display: flex;
  align-items: center;
}

.header-logo {
  height: 38px; /* 로고 높이 조정 */
  object-fit: contain;
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 32px;
}

.nav-item {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-gray-light);
  position: relative;
  padding: 8px 0;
}

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

.nav-item:hover {
  color: var(--primary-sky);
}

.nav-item:hover::after {
  width: 100%;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}

/* Hamburger design (Light mode adapted) */
.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: #0F172A;
  position: relative;
  transition: var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  width: 24px;
  height: 2px;
  background: #0F172A;
  position: absolute;
  left: 0;
  transition: var(--transition-fast);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* 5. Hero Section Styles (Light Theme) */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 80% 20%, rgba(0, 163, 224, 0.08) 0%, #FFFFFF 60%);
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0) 60%, var(--bg-dark-base) 100%);
  z-index: 1;
}

.hero-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 163, 224, 0.05) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  padding: 0 24px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 163, 224, 0.08);
  border: 1px solid rgba(0, 163, 224, 0.25);
  color: var(--primary-sky);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.06em;
  margin-bottom: 24px;
  color: #0F172A;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-deep) 20%, var(--primary-sky) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.2rem;
  color: #475569;
  font-weight: 400;
  max-width: 720px;
  margin: 0 auto 40px auto;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Mouse Scroll Down */
.scroll-down-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.mouse-icon {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-gray-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.mouse-wheel {
  width: 4px;
  height: 8px;
  background-color: var(--primary-sky);
  border-radius: 2px;
  animation: scroll-wheel 1.5s infinite ease-in-out;
}

@keyframes scroll-wheel {
  0% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(6px); opacity: 0.3; }
  100% { transform: translateY(0); opacity: 1; }
}

.scroll-text {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--text-gray-muted);
}

/* 6. About Us Section Styles */
.about-section {
  background-color: var(--bg-dark-base);
}

.about-ceo-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  margin-bottom: 40px;
}

.ceo-message-box {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #FFFFFF;
}

.ceo-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 20px;
}

.ceo-text {
  color: var(--text-gray-light);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.ceo-text strong {
  color: var(--primary-deep);
}

.ceo-signature {
  margin-top: 10px;
  font-weight: 600;
  color: #0F172A;
  font-size: 1.1rem;
}

/* AEO Certification Card */
.aeo-cert-card {
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 0%, rgba(0, 163, 224, 0.05) 0%, #FFFFFF 70%);
}

.aeo-badge-wrap {
  width: 110px;
  height: 110px;
  margin-bottom: 24px;
}

.aeo-icon {
  width: 100%;
  height: 100%;
}

.tag-aeo {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  background: rgba(0, 163, 224, 0.08);
  border: 1px solid rgba(0, 163, 224, 0.25);
  color: var(--primary-deep);
  padding: 4px 12px;
  border-radius: 50px;
  display: inline-block;
  margin-bottom: 12px;
}

.aeo-title-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 12px;
}

.aeo-desc {
  font-size: 0.95rem;
  color: var(--text-gray-muted);
  line-height: 1.6;
}

/* Overview Info & Stats */
.about-overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.sub-block-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
  color: #0F172A;
}

.sub-block-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--primary-sky);
  border-radius: 2px;
}

.overview-info {
  padding: 40px;
  background: #FFFFFF;
}

.overview-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.overview-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid #F1F5F9;
  padding-bottom: 12px;
}

.overview-list li:last-child {
  border: none;
  padding-bottom: 0;
}

.overview-list .label {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary-deep);
  text-transform: uppercase;
}

.overview-list .val {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1E293B;
}

/* Revenue Chart */
.overview-stats {
  padding: 40px;
  background: #FFFFFF;
}

.chart-container {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 160px;
  margin: 30px 0 20px 0;
  border-bottom: 1.5px solid #E2E8F0;
  padding-bottom: 10px;
}

.chart-bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 80px;
}

.chart-bar {
  width: 38px;
  background: #E2E8F0;
  border-radius: 4px 4px 0 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
  transition: height 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid #CBD5E1;
}

.chart-bar.highlight {
  background: linear-gradient(to top, var(--primary-deep), var(--primary-sky));
  border-color: var(--primary-sky);
  box-shadow: 0 4px 12px rgba(0, 163, 224, 0.2);
}

.bar-value {
  position: absolute;
  top: -28px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #475569;
}

.chart-bar.highlight .bar-value {
  color: var(--primary-deep);
}

.bar-label {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text-gray-muted);
  font-weight: 600;
}

.chart-note {
  font-size: 0.8rem;
  color: var(--text-gray-muted);
  text-align: right;
}

/* Timeline/History */
.history-block {
  padding: 50px 40px;
  margin-bottom: 40px;
  background: #FFFFFF;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 40px auto 0 auto;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 5px;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary-sky), rgba(0, 80, 136, 0.05));
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  top: 6px;
  left: -30px;
  width: 12px;
  height: 12px;
  background: var(--primary-sky);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0, 163, 224, 0.2);
}

.timeline-content {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 20px;
}

.timeline-year {
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary-deep);
  display: block;
  margin-bottom: 6px;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-gray-light);
}

/* Office Locations */
.office-location-block {
  padding: 40px;
  background: #FFFFFF;
}

.office-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 20px;
}

.office-card {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 24px;
  transition: var(--transition-fast);
}

.office-card:hover {
  background: #FFFFFF;
  border-color: rgba(0, 163, 224, 0.4);
  box-shadow: var(--shadow-premium);
}

.office-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.office-badge {
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--primary-sky);
  color: #FFFFFF;
  padding: 2px 8px;
  border-radius: 4px;
}

.office-badge.badge-sub {
  background: var(--primary-deep);
  color: #FFFFFF;
}

.office-header h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0F172A;
}

.office-addr {
  font-size: 0.95rem;
  color: var(--text-gray-light);
  margin-bottom: 16px;
}

.office-contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
  color: var(--text-gray-muted);
}

/* 7. Service Areas Section Styles */
.services-section {
  background-color: #FFFFFF;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.service-card {
  padding: 40px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: #F8FAFC;
}

.service-card:hover {
  background: #FFFFFF;
}

.service-icon-wrap {
  width: 50px;
  height: 50px;
  background: rgba(0, 163, 224, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-deep);
  margin-bottom: 24px;
  transition: var(--transition-smooth);
}

.service-card:hover .service-icon-wrap {
  background: var(--primary-sky);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 163, 224, 0.3);
}

.service-svg-icon {
  width: 28px;
  height: 28px;
}

.service-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
  color: #0F172A;
}

.service-title .eng-sub {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-gray-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-top: 4px;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-gray-light);
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tags li {
  font-size: 0.8rem;
  color: var(--primary-deep);
  background: rgba(0, 80, 136, 0.05);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
}

/* 8. SCM Process Section Styles */
.scm-section {
  background-color: var(--bg-dark-base);
}

.scm-flow-wrapper {
  display: flex;
  flex-direction: column;
  padding: 40px;
  gap: 24px;
  margin-bottom: 40px;
  background: #FFFFFF;
}

.scm-step {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  position: relative;
  transition: var(--transition-fast);
}

.scm-step:hover {
  background: #FFFFFF;
  border-color: rgba(0, 163, 224, 0.4);
  box-shadow: var(--shadow-premium);
}

.step-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-sky);
  margin-right: 24px;
  width: 40px;
}

.step-content {
  flex-grow: 1;
}

.step-content h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.92rem;
  color: var(--text-gray-light);
}

.step-arrow {
  font-size: 1.5rem;
  color: var(--primary-sky);
  opacity: 0.6;
}

/* Compliance Grid */
.scm-solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.sol-card {
  padding: 35px;
  background: #FFFFFF;
}

.sol-icon-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.sol-badge {
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 4px;
  text-transform: uppercase;
}

.sol-badge.badge-blue {
  background: rgba(0, 163, 224, 0.08);
  color: var(--primary-deep);
}

.sol-badge.badge-red {
  background: rgba(239, 68, 68, 0.08);
  color: #DC2626;
}

.sol-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #0F172A;
}

.sol-card p {
  font-size: 0.95rem;
  color: var(--text-gray-light);
}

/* 9. Global Network Section Styles */
.network-section {
  background-color: #FFFFFF;
}

.network-map-wrapper {
  position: relative;
  overflow: hidden;
  height: 500px;
  border-radius: 16px;
  margin-bottom: 40px;
  background-color: #F8FAFC;
}

.world-map-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.world-map-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45; /* 밝은 테마에서 은은하지만 선명하게 보이도록 불투명도 조절 */
  filter: grayscale(1) brightness(1.25) contrast(1.15); /* 흑백 고대비화 및 명도 증가로 지도 윤곽 부각 */
}

.map-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, #FFFFFF 10%, rgba(248, 250, 252, 0.2) 50%, #FFFFFF 90%);
  pointer-events: none;
}

/* Map Pin Styling */
.map-pin {
  position: absolute;
  width: 12px;
  height: 12px;
  transform: translate(-50%, -50%);
  z-index: 10;
  cursor: pointer;
}

.map-pin .dot {
  width: 10px;
  height: 10px;
  background-color: var(--primary-deep);
  border-radius: 50%;
  position: absolute;
  top: 1px;
  left: 1px;
}

.map-pin .ping {
  width: 30px;
  height: 30px;
  border: 1.5px solid var(--primary-deep);
  border-radius: 50%;
  position: absolute;
  top: -9px;
  left: -9px;
  animation: ping 1.8s infinite ease-out;
  opacity: 0;
}

@keyframes ping {
  0% { transform: scale(0.3); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

.pin-tooltip {
  visibility: hidden;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--primary-sky);
  color: #FFFFFF;
  text-align: center;
  padding: 8px 14px;
  border-radius: 6px;
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  transition: all 0.25s ease;
  pointer-events: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.pin-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(15, 23, 42, 0.95) transparent transparent transparent;
}

.map-pin:hover .pin-tooltip {
  visibility: visible;
  opacity: 1;
  bottom: 28px;
}

.network-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.network-group {
  padding: 35px;
  background: #F8FAFC;
}

.network-group:hover {
  background: #FFFFFF;
}

.group-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 20px;
  border-bottom: 1.5px solid rgba(0, 80, 136, 0.1);
  padding-bottom: 10px;
  white-space: nowrap; /* Enforce single-line text layout */
  overflow: hidden;
  text-overflow: ellipsis; /* Truncate gracefully if workspace width is tight */
}

.group-locations {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.group-locations li {
  font-size: 0.92rem;
  color: var(--text-gray-light);
  line-height: 1.5;
}

.group-locations li strong {
  color: #0F172A;
  font-weight: 600;
  margin-right: 4px;
}

/* 10. Main Clients / Logo Slider Styles */
.clients-section {
  background-color: var(--bg-dark-base);
}

.slider-wrapper {
  overflow: hidden;
  padding: 24px 0;
  position: relative;
  width: 100%;
}

.slider-wrapper::before,
.slider-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  width: 100px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.slider-wrapper::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-dark-base) 0%, transparent 100%);
}

.slider-wrapper::after {
  right: 0;
  background: linear-gradient(270deg, var(--bg-dark-base) 0%, transparent 100%);
}

.logo-track {
  display: flex;
  width: calc(240px * 12);
  animation: marquee 25s linear infinite;
}

.logo-slide {
  width: 240px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.logo-slide span {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-gray-muted);
  letter-spacing: -0.02em;
  transition: var(--transition-fast);
}

.logo-slide:hover span {
  color: var(--primary-deep);
  transform: scale(1.05);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-240px * 6)); }
}

/* 11. Quotation Request Form Styles */
.quotation-section {
  background-color: #FFFFFF;
}

.quotation-form-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 40px;
  background: #F8FAFC;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.col-span-2 {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
}

.required-label::after {
  content: " *";
  color: #DC2626;
  font-weight: 800;
}

.input-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 0.95rem;
  color: #0F172A;
  font-family: var(--font-primary);
  transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94A3B8;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-sky);
  box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.15);
  background: #FFFFFF;
}

.form-group textarea {
  resize: none;
}

.textarea-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
}

.char-counter {
  font-size: 0.8rem;
  color: var(--text-gray-muted);
  margin-left: auto;
}

.error-msg {
  font-size: 0.8rem;
  color: #DC2626;
  margin-top: 4px;
  display: none;
}

/* Privacy Agreement */
.privacy-agreement-wrapper {
  margin-top: 30px;
  border-top: 1px solid #E2E8F0;
  padding-top: 24px;
}

.privacy-checkbox-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.privacy-checkbox-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-sky);
  cursor: pointer;
}

.privacy-checkbox-wrap label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #334155;
  cursor: pointer;
}

/* Privacy Accordion */
.privacy-accordion {
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  background: #FFFFFF;
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  padding: 14px 20px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-gray-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: var(--transition-fast);
}

.accordion-trigger:hover {
  color: var(--primary-deep);
  background: #F8FAFC;
}

.accordion-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.accordion-trigger[aria-expanded="true"] .accordion-arrow {
  transform: rotate(180deg);
  color: var(--primary-deep);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.accordion-inner {
  padding: 0 20px 20px 20px;
  font-size: 0.85rem;
  color: var(--text-gray-light);
  line-height: 1.6;
  border-top: 1px solid #F1F5F9;
}

.accordion-inner p {
  margin-bottom: 8px;
}

.accordion-inner ul {
  padding-left: 16px;
  list-style-type: disc;
}

.accordion-inner li {
  margin-bottom: 6px;
}

.form-submit-wrap {
  margin-top: 30px;
  text-align: center;
}

.btn-submit {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-sky));
  color: #FFFFFF;
  width: 100%;
  max-width: 320px;
  padding: 16px;
  font-size: 1.05rem;
  font-weight: 800;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 163, 224, 0.25);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 163, 224, 0.45);
}

/* 12. Footer Styles (Kept dark for professional anchor) */
.main-footer {
  background-color: #0F172A;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 60px 0 30px 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  height: 33px;
  object-fit: contain;
  align-self: flex-start;
  border-radius: 4px;
  filter: brightness(0) invert(1); /* 어두운 푸터에서 로고를 하얗게 반전시켜 가시성 확보 */
}

.company-slogan {
  font-size: 0.95rem;
  color: #94A3B8;
}

.footer-address-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-office-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.office-label {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary-sky);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-office-col p {
  font-size: 0.9rem;
  color: #94A3B8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  font-size: 0.85rem;
  color: #64748B;
}

/* 13. Dynamic Toast & Modal Styles */
/* Toast System */
.toast-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  padding: 14px 24px;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 80, 136, 0.08);
  color: #0F172A;
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
  transform: translateY(20px);
  opacity: 0;
  animation: toast-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-error {
  border-left: 4px solid #DC2626;
}

.toast.toast-success {
  border-left: 4px solid var(--primary-sky);
}

@keyframes toast-in {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Success Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease-in-out;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 20px 50px rgba(0, 80, 136, 0.15);
  border-radius: 20px;
  padding: 40px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-icon-success {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px auto;
}

/* SVG Success Checkmark drawing animation */
.checkmark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: block;
  stroke-width: 2;
  stroke: var(--primary-deep);
  stroke-miterlimit: 10;
  box-shadow: inset 0px 0px 0px var(--primary-sky);
  animation: fill .4s ease-in-out .4s forwards, scale .3s ease-in-out .9s inherit;
}

.checkmark__circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  stroke-width: 2;
  stroke-miterlimit: 10;
  stroke: var(--primary-deep);
  fill: none;
  animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark__check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  stroke: var(--primary-deep);
  animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke {
  100% { stroke-dashoffset: 0; }
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 12px;
}

.modal-body-text {
  font-size: 0.95rem;
  color: var(--text-gray-light);
  line-height: 1.6;
  margin-bottom: 30px;
}

.btn-modal-close {
  background: var(--primary-deep);
  color: #FFFFFF;
  width: 100%;
  padding: 12px;
  font-weight: 800;
}

.btn-modal-close:hover {
  background: var(--primary-sky);
  box-shadow: var(--glow-sky);
}

/* 14. Responsive Layout (Media Queries) */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 991px) {
  .section-padding {
    padding: 80px 0;
  }
  .about-ceo-grid {
    grid-template-columns: 1fr;
  }
  .about-overview-grid {
    grid-template-columns: 1fr;
  }
  .office-grid {
    grid-template-columns: 1fr;
  }
  .scm-solutions-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-header {
    height: 70px;
  }
  .header-cta {
    display: none;
  }
  .mobile-nav-toggle {
    display: block;
    z-index: 1010;
  }

  /* Hamburger Active state */
  .mobile-nav-toggle.active .hamburger {
    background: transparent;
  }
  .mobile-nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
  }
  .mobile-nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
  }

  /* Slide navigation for mobile */
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--slate-dark);
    padding: 100px 40px;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1005;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 24px;
  }

  .nav-item {
    font-size: 1.1rem;
    font-weight: 600;
  }

  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .col-span-2 {
    grid-column: span 1;
  }
  
  .quotation-form-wrapper {
    padding: 30px 20px;
  }

  .footer-address-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Scroll Animation classes (Used in app.js) */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Google Translate Brand Name Switcher */
.ko-brand-fallback {
  display: inline !important;
}
.en-brand-fallback {
  display: none !important;
}

html.translated-ltr .ko-brand-fallback,
html.translated-rtl .ko-brand-fallback {
  display: none !important;
}
html.translated-ltr .en-brand-fallback,
html.translated-rtl .en-brand-fallback {
  display: inline !important;
}

/* Google Translate Top Toolbar Hide and Style Normalization */
iframe.goog-te-banner-frame,
.goog-te-banner-frame,
.goog-te-banner-frame.skiptranslate,
.goog-te-banner,
.goog-te-gadget-icon,
#goog-gt-tt,
.goog-te-balloon-frame {
  display: none !important;
  visibility: hidden !important;
}
html {
  margin-top: 0px !important;
}
body {
  top: 0px !important;
  position: static !important;
}
.goog-tooltip {
  display: none !important;
}
.goog-tooltip:hover {
  display: none !important;
}
.goog-text-highlight {
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
}