/**
 * VSP (VISION PARTNERS) — Main Stylesheet
 * Concept: Blue Editorial Corporate
 * Max-Width: 1280px
 * Colors:
 *  - Signature Blue: #50A4FA
 *  - Deep Navy: #101D35
 *  - Ice White: #F7FAFF
 *  - Slate: #68788D
 *  - White: #FFFFFF
 */

/* ==========================================================================
   1. CSS Custom Properties / Design Tokens
   ========================================================================== */
:root {
  --color-primary: #50A4FA;          /* Signature Blue */
  --color-primary-hover: #3b90e6;
  --color-primary-light: #EBF4FE;
  --color-primary-subtle: rgba(80, 164, 250, 0.12);

  --color-navy: #101D35;             /* Deep Navy */
  --color-navy-dark: #0A1324;
  --color-navy-surface: #152442;
  --color-navy-border: rgba(255, 255, 255, 0.12);

  --color-ice: #F7FAFF;              /* Ice White */
  --color-slate: #68788D;            /* Slate */
  --color-slate-light: #94A3B8;
  --color-slate-subtle: #F1F5F9;

  --color-white: #FFFFFF;
  --color-text-main: #101D35;
  --color-text-body: #334155;
  --color-text-muted: #68788D;
  --color-border: #E2E8F0;
  --color-border-subtle: #EDF2F7;

  /* Typography */
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-kr: 'Pretendard', -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;

  /* Layout */
  --max-width: 1280px;
  --header-height: 84px;
  --header-height-scrolled: 70px;
  --section-padding-y: 110px;

  /* Transitions */
  --ease-editorial: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
}

/* ==========================================================================
   2. Typography & Global Layout
   ========================================================================== */
body {
  font-family: var(--font-kr);
  font-size: 16px;
  color: var(--color-text-body);
  background-color: var(--color-white);
  line-height: 1.65;
  word-break: keep-all;
  overflow-x: hidden;
}

.en {
  font-family: var(--font-en);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}

/* Editorial Dividers & Labels */
.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  position: relative;
}

.section-divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

.editorial-header {
  margin-bottom: 64px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.editorial-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.editorial-num {
  font-weight: 700;
  color: var(--color-slate);
}

.editorial-divider-line {
  display: inline-block;
  width: 32px;
  height: 1px;
  background-color: var(--color-slate-light);
}

.editorial-title {
  font-family: var(--font-en);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-navy);
}

.editorial-subtitle {
  font-family: var(--font-kr);
  font-size: 19px;
  font-weight: 400;
  color: var(--color-text-muted);
  max-width: 720px;
  margin-top: 6px;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  transition: all var(--duration-fast) var(--ease-editorial);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
}

.btn-outline:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

.btn-disabled {
  background-color: #E2E8F0;
  color: #94A3B8;
  border: 1px solid #CBD5E1;
  cursor: not-allowed;
  pointer-events: none;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 2px;
  letter-spacing: 0.02em;
}

.badge-recruiting {
  background-color: var(--color-primary-light);
  color: #0369A1;
  border: 1px solid rgba(80, 164, 250, 0.4);
}

.badge-pool {
  background-color: #F1F5F9;
  color: #475569;
  border: 1px solid #CBD5E1;
}

.badge-closed {
  background-color: #F8FAFC;
  color: #94A3B8;
  border: 1px solid #E2E8F0;
}

/* ==========================================================================
   3. Header Navigation (Sticky & Editorial)
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: height var(--duration-normal) var(--ease-editorial),
              background-color var(--duration-normal) var(--ease-editorial),
              box-shadow var(--duration-normal) var(--ease-editorial);
}

.header.scrolled {
  height: var(--header-height-scrolled);
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(16, 29, 53, 0.04);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.header-logo {
  height: 24px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-main);
  position: relative;
  padding: 8px 0;
  transition: color var(--duration-fast) var(--ease-editorial);
}

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

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

.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-cta {
  font-size: 13px;
  padding: 9px 18px;
}

/* Hamburger toggle for mobile/tablet */
.hamburger-btn {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background-color: var(--color-navy);
  transition: transform var(--duration-fast) var(--ease-editorial),
              opacity var(--duration-fast) var(--ease-editorial);
}

.hamburger-btn.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 360px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
  z-index: 999;
  padding: 100px 32px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right var(--duration-normal) var(--ease-editorial);
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(16, 29, 53, 0.5);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-editorial),
              visibility var(--duration-normal) var(--ease-editorial);
}

.mobile-nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav-link {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-navy);
}

.mobile-nav-link.active {
  color: var(--color-primary);
}

/* ==========================================================================
   4. Section 01: Hero
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-navy);
  color: var(--color-white);
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 90px;
  overflow: hidden;
}

/* Subtle Editorial Background Grid */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.hero-accent-light {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(80, 164, 250, 0.12) 0%, rgba(16, 29, 53, 0) 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 960px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero-tag::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.hero-main-title {
  font-family: var(--font-en);
  font-size: 68px;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 28px;
}

.hero-main-title .blue-dot {
  color: var(--color-primary);
}

.hero-kr-slogan {
  font-size: 26px;
  font-weight: 500;
  line-height: 1.45;
  color: #F1F5F9;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.hero-sub-slogan {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-slate-light);
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 72px;
}

/* Hero Key Indicators (Editorial Metric Strip) */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-val {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
}

.metric-val .metric-unit {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  margin-left: 2px;
}

.metric-label {
  font-size: 13px;
  color: var(--color-slate-light);
  line-height: 1.4;
}

/* ==========================================================================
   5. Section 02: About (Vision Partners)
   ========================================================================== */
.about-section {
  background-color: var(--color-white);
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

.about-lead-text {
  font-size: 22px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-navy);
  margin-bottom: 24px;
}

.about-desc-text {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Corporate Facts Mini-Table */
.about-facts-table {
  background-color: var(--color-ice);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: 4px;
}

.about-facts-title {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.fact-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed #E2E8F0;
  font-size: 14px;
}

.fact-row:last-child {
  border-bottom: none;
}

.fact-key {
  color: var(--color-slate);
  font-weight: 500;
}

.fact-val {
  color: var(--color-navy);
  font-weight: 600;
  text-align: right;
}

/* 4 Core Pillars Grid */
.about-pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.pillar-card {
  padding: 32px 28px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-navy);
  transition: all var(--duration-fast) var(--ease-editorial);
}

.pillar-card:hover {
  border-top-color: var(--color-primary);
  transform: translateY(-4px);
}

.pillar-index {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.pillar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.4;
}

.pillar-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   6. Section 03: Services (Editorial Grid, ITO Main)
   ========================================================================== */
.services-section {
  background-color: var(--color-ice);
}

.services-layout {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Featured Main Card (ITO) */
.service-featured-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  padding: 48px 52px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  position: relative;
}

.service-featured-badge {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-featured-title {
  font-family: var(--font-en);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.25;
  margin-bottom: 12px;
}

.service-featured-sub {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 18px;
}

.service-featured-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
}

.service-feature-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.feature-point-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-navy);
  font-weight: 500;
}

.feature-point-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 3px;
}

/* 3 Secondary Service Cards Grid */
.services-sub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-sub-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--duration-fast) var(--ease-editorial);
}

.service-sub-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.service-sub-num {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-slate);
  margin-bottom: 16px;
}

.service-sub-title {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.service-sub-korean {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 16px;
}

.service-sub-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

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

.service-tag {
  font-size: 12px;
  padding: 3px 8px;
  background-color: var(--color-ice);
  color: var(--color-slate);
  border: 1px solid var(--color-border);
  border-radius: 2px;
}

/* ==========================================================================
   7. Section 04: Projects (KDN / Public, Year Tabs, Filter)
   ========================================================================== */
.projects-section {
  background-color: var(--color-white);
}

.projects-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.projects-tabs {
  display: flex;
  gap: 8px;
}

.project-tab-btn {
  padding: 10px 24px;
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  color: var(--color-slate);
  transition: all var(--duration-fast) var(--ease-editorial);
  cursor: pointer;
}

.project-tab-btn:hover {
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.project-tab-btn.active {
  background-color: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.projects-counter {
  font-size: 14px;
  color: var(--color-slate);
  font-weight: 500;
}

.projects-counter strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* Projects Table / List */
.projects-table {
  width: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.projects-table-header {
  display: grid;
  grid-template-columns: 80px 1fr 140px 140px;
  padding: 16px 24px;
  background-color: var(--color-ice);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-slate);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.project-item-row {
  display: grid;
  grid-template-columns: 80px 1fr 140px 140px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  transition: background-color var(--duration-fast) var(--ease-editorial);
}

.project-item-row:last-child {
  border-bottom: none;
}

.project-item-row:hover {
  background-color: var(--color-ice);
}

.project-col-no {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-slate);
}

.project-col-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-navy);
}

.project-col-category {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-slate);
}

.project-col-status {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
}

.projects-more-wrap {
  display: flex;
  justify-content: center;
}

.btn-projects-toggle {
  padding: 12px 32px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-navy);
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  border-radius: 4px;
  transition: all var(--duration-fast) var(--ease-editorial);
  cursor: pointer;
}

.btn-projects-toggle:hover {
  border-color: var(--color-navy);
  background-color: var(--color-ice);
}

/* ==========================================================================
   8. Section 05: Manpower (4 Job Cards & Modal)
   ========================================================================== */
.manpower-section {
  background-color: var(--color-ice);
}

.manpower-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.manpower-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-editorial);
  position: relative;
}

.manpower-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(16, 29, 53, 0.06);
}

.manpower-card-top {
  margin-bottom: 24px;
}

.manpower-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.manpower-role-en {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.3;
}

.manpower-role-kr {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-slate);
  margin-top: 4px;
}

.manpower-summary {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-top: 16px;
}

.manpower-card-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}

.manpower-card-action span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Modal Popup Styles */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(16, 29, 53, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-editorial),
              visibility var(--duration-normal) var(--ease-editorial);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  box-shadow: 0 24px 60px rgba(16, 29, 53, 0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--duration-normal) var(--ease-editorial);
}

.modal-backdrop.open .modal-container {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 28px 32px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  background-color: var(--color-white);
}

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

.modal-title-badge-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-role-en {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-navy);
}

.modal-role-kr {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-slate);
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-ice);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-navy);
  font-size: 18px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-editorial);
}

.modal-close-btn:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.modal-body {
  padding: 32px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.modal-section-title {
  font-family: var(--font-kr);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 14px;
  background-color: var(--color-primary);
}

.modal-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.modal-list {
  list-style: disc;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.modal-footer {
  padding: 20px 32px;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-ice);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* ==========================================================================
   9. Section 06: Technology & R&D (2 Flagship Projects)
   ========================================================================== */
.rnd-section {
  background-color: var(--color-white);
}

.rnd-projects-wrap {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.rnd-project-card {
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.rnd-project-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.rnd-project-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  background-color: var(--color-ice);
  color: var(--color-primary);
  border: 1px solid rgba(80, 164, 250, 0.4);
  border-radius: 2px;
}

.rnd-project-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.35;
  margin-bottom: 12px;
}

.rnd-project-sub {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-slate);
  margin-bottom: 20px;
}

.rnd-project-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.rnd-points-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: var(--color-ice);
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.rnd-point-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.rnd-point-bullet {
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

.rnd-point-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.rnd-point-content p {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   10. Section 07: Contact & Corporate Info
   ========================================================================== */
.contact-section {
  background-color: var(--color-ice);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.contact-company-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.contact-company-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-size: 15px;
}

.contact-detail-key {
  min-width: 90px;
  font-weight: 600;
  color: var(--color-slate);
}

.contact-detail-val {
  color: var(--color-navy);
  font-weight: 500;
}

.contact-detail-val a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Inquiry Form */
.contact-form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 40px;
  border-radius: 4px;
}

.contact-form-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-white);
  color: var(--color-navy);
  transition: border-color var(--duration-fast) var(--ease-editorial);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ==========================================================================
   11. Footer
   ========================================================================== */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 64px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand-logo {
  height: 24px;
  margin-bottom: 16px;
}

.footer-brand-statement {
  font-size: 14px;
  color: var(--color-slate-light);
  max-width: 440px;
  line-height: 1.6;
}

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

.footer-nav-link {
  font-family: var(--font-en);
  font-size: 14px;
  color: var(--color-slate-light);
  transition: color var(--duration-fast) var(--ease-editorial);
}

.footer-nav-link:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-slate);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background-color: var(--color-white);
  color: var(--color-navy);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(16, 29, 53, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--duration-fast) var(--ease-editorial);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

/* ==========================================================================
   12. Animations & Scroll States
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease-editorial), transform 0.6s var(--ease-editorial);
  will-change: opacity, transform;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}