@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+KR:wght@300;400;500;700;900&display=swap');

:root {
  --primary: #1E64D4;
  --primary-dark: #0F3D7A;
  --primary-deep: #0A2540;
  --primary-light: #4D8DF2;
  --accent: #00C2FF;
  --accent-light: #E6F8FF;
  
  --bg-light: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-subtle: #F0F4FA;
  
  --text-main: #1E293B;
  --text-muted: #64748B;
  --text-dark: #0F172A;
  --border-color: #E2E8F0;
  --border-light: #F1F5F9;
  
  --shadow-sm: 0 4px 12px rgba(15, 61, 122, 0.04);
  --shadow-md: 0 10px 30px rgba(15, 61, 122, 0.08);
  --shadow-lg: 0 20px 40px rgba(15, 61, 122, 0.12);
  --shadow-hover: 0 22px 45px rgba(30, 100, 212, 0.18);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: 'Noto Sans KR', 'Inter', sans-serif;
  color: var(--text-main);
  background-color: #FFFFFF;
  line-height: 1.65;
  overflow-x: hidden;
}

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

/* ----------------------------------------------------
   Typography & Badges
---------------------------------------------------- */
.font-inter {
  font-family: 'Inter', sans-serif;
}

.badge-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: var(--accent-light);
  color: var(--primary);
  border: 1px solid rgba(30, 100, 212, 0.15);
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--primary-deep);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ----------------------------------------------------
   Header & Navigation
---------------------------------------------------- */
.navbar {
  padding: 16px 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  z-index: 1050;
}

.navbar.scrolled {
  padding: 10px 0;
  box-shadow: 0 4px 20px rgba(10, 37, 64, 0.08);
}

.navbar-brand img {
  height: 48px;
  width: auto;
}

.nav-link {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main) !important;
  margin: 0 12px;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary) !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background: var(--primary);
  transition: var(--transition);
  transform: translateX(-50%);
  border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 80%;
}

.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #FFFFFF !important;
  border: none;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: 50px;
  box-shadow: 0 6px 18px rgba(30, 100, 212, 0.3);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(30, 100, 212, 0.4);
  color: #FFFFFF !important;
}

.btn-outline-custom {
  background: transparent;
  color: var(--primary-dark) !important;
  border: 2px solid var(--primary);
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 50px;
  transition: var(--transition);
}

.btn-outline-custom:hover {
  background: var(--primary);
  color: #FFFFFF !important;
  transform: translateY(-2px);
}

/* ----------------------------------------------------
   Hero Section
---------------------------------------------------- */
.hero-section {
  position: relative;
  padding: 150px 0 100px 0;
  background: linear-gradient(180deg, #F0F6FF 0%, #FFFFFF 100%);
  overflow: hidden;
}

.hero-bg-shapes .shape-1 {
  position: absolute;
  top: -100px;
  right: -50px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-bg-shapes .shape-2 {
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(30, 100, 212, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--primary-deep);
  line-height: 1.25;
  letter-spacing: -1px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-top: 20px;
  margin-bottom: 35px;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid #FFFFFF;
}

.hero-image-wrapper img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.hero-floating-card {
  position: absolute;
  bottom: 30px;
  left: 30px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 15px 35px rgba(10, 37, 64, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 320px;
}

.hero-floating-card .icon-box {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

/* ----------------------------------------------------
   Stats Section
---------------------------------------------------- */
.stats-container {
  margin-top: -50px;
  position: relative;
  z-index: 10;
}

.stats-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 30px 20px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  text-align: center;
  transition: var(--transition);
}

.stats-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(30, 100, 212, 0.2);
}

.stats-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  font-family: 'Inter', sans-serif;
}

.stats-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 5px;
}

/* ----------------------------------------------------
   Company Overview (Vision, Mission, Core Values)
---------------------------------------------------- */
.overview-section {
  padding: 100px 0;
  background: #FFFFFF;
}

.vision-mission-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  height: 100%;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.vision-mission-card:hover {
  box-shadow: var(--shadow-md);
  background: #FFFFFF;
  border-color: var(--primary-light);
}

.vision-mission-card .card-label {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.vision-mission-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 15px;
}

.vision-mission-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 0;
}

.core-value-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 35px 25px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
  position: relative;
  top: 0;
}

.core-value-card:hover {
  top: -8px;
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.core-value-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-subtle) 0%, var(--accent-light) 100%);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px auto;
  transition: var(--transition);
}

.core-value-card:hover .core-value-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #FFFFFF;
  transform: rotateY(180deg);
}

.core-value-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 6px;
  font-family: 'Inter', sans-serif;
}

.core-value-sub {
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}

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

/* ----------------------------------------------------
   Business Area Section (01~04)
---------------------------------------------------- */
.business-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.business-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.business-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.business-card-header {
  position: relative;
  padding: 30px 30px 10px 30px;
}

.business-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary-light);
  font-family: 'Inter', sans-serif;
  opacity: 0.4;
  line-height: 1;
}

.business-card-header .category {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--primary);
  text-transform: uppercase;
  margin-top: 5px;
}

.business-card-body {
  padding: 10px 30px 30px 30px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.business-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 12px;
}

.business-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.business-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.business-tag-item {
  background: var(--bg-subtle);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

/* Feature highlight banner inside business */
.business-highlight-box {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deep) 100%);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: #FFFFFF;
  box-shadow: var(--shadow-lg);
  margin-top: 40px;
}

.business-highlight-box h4 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 15px;
}

/* ----------------------------------------------------
   Core Competitiveness Section (Why Sambok)
---------------------------------------------------- */
.competitiveness-section {
  padding: 100px 0;
  background: #FFFFFF;
}

.competitiveness-side-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
  height: 100%;
  min-height: 400px;
}

.competitiveness-side-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.competitiveness-side-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  background: linear-gradient(180deg, rgba(10,37,64,0) 0%, rgba(10,37,64,0.9) 100%);
  color: #FFFFFF;
}

.competitiveness-item {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 30px;
  border-left: 5px solid var(--primary);
  margin-bottom: 20px;
  transition: var(--transition);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.competitiveness-item:hover {
  background: #FFFFFF;
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
}

.competitiveness-num {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
  font-family: 'Inter', sans-serif;
}

.competitiveness-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 8px;
}

.competitiveness-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ----------------------------------------------------
   Interactive Cost & Efficiency Calculator Widget
---------------------------------------------------- */
.calculator-section {
  padding: 90px 0;
  background: linear-gradient(135deg, #F0F6FF 0%, #E6F0FA 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.calculator-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(30, 100, 212, 0.1);
}

.form-label-custom {
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
  display: block;
}

.calc-result-box {
  background: var(--primary-deep);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.calc-result-val {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--accent);
  margin: 10px 0;
  font-family: 'Inter', sans-serif;
}

/* ----------------------------------------------------
   Partnership & Inquiry Section
---------------------------------------------------- */
.inquiry-section {
  padding: 100px 0;
  background: #FFFFFF;
}

.inquiry-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.partnership-crop-face {
  object-fit: cover;
  object-position: center center;
}

.min-height-250 {
  min-height: 250px;
}

/* Custom Checkbox Card Style for perfect balance */
.custom-checkbox-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 12px;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
  width: 100%;
  margin: 0;
}

.custom-checkbox-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(30, 100, 212, 0.08);
}

.custom-checkbox-card:has(.form-check-input:checked) {
  border-color: var(--primary);
  background: rgba(30, 100, 212, 0.05);
}

.custom-checkbox-card .form-check-input {
  cursor: pointer;
  width: 1.1em;
  height: 1.1em;
}

.form-control-custom {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 0.95rem;
  transition: var(--transition);
  background: #FFFFFF;
}

.form-control-custom:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 100, 212, 0.15);
  outline: none;
}

.info-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--accent-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ----------------------------------------------------
   Footer
---------------------------------------------------- */
.footer {
  background: var(--primary-deep);
  color: #94A3B8;
  padding: 70px 0 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-title {
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94A3B8;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 50px;
  padding-top: 25px;
  font-size: 0.88rem;
}

/* Modal styles */
.modal-content {
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 24px 30px;
}

.modal-body {
  padding: 30px;
}