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

:root {
  --primary: #0a1e3d;
  --primary-light: #132d5e;
  --accent: #1a73e8;
  --accent-light: #4a9af5;
  --accent-dark: #0d5bbd;
  --dark: #0a1628;
  --gray-900: #1a1a2e;
  --gray-700: #4a4a5a;
  --gray-500: #7a7a8a;
  --gray-300: #b0b0b8;
  --gray-100: #f0f2f5;
  --white: #ffffff;
  --gradient-hero: linear-gradient(135deg, #0a1628 0%, #1a3a6a 50%, #0d2847 100%);
  --gradient-accent: linear-gradient(135deg, #1a73e8, #4a9af5);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}

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

ul { list-style: none; }

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

.container {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 100px 0;
}

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

.section-header .label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== HEADER / NAV ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.header .container {
  display: flex;
  align-items: center;
  height: 72px;
}

.header .gnb {
  flex: 1;
  margin-left: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
}

.logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: var(--white);
}

.logo span.eng {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gray-300);
  display: block;
  margin-top: -2px;
}

.gnb {
  position: static;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.nav-menu > li > a {
  display: block;
  padding: 24px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  transition: all var(--transition);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
  color: var(--white);
  border-bottom-color: var(--accent);
}

/* Mobile menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(26,115,232,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(74,154,245,0.1) 0%, transparent 50%);
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(26,115,232,0.4);
  border-radius: 50%;
  animation: float 8s infinite ease-in-out;
}

.hero-particle:nth-child(1) { top: 20%; left: 15%; animation-delay: 0s; }
.hero-particle:nth-child(2) { top: 60%; left: 75%; animation-delay: 2s; }
.hero-particle:nth-child(3) { top: 40%; left: 45%; animation-delay: 4s; }
.hero-particle:nth-child(4) { top: 80%; left: 25%; animation-delay: 1s; }
.hero-particle:nth-child(5) { top: 30%; left: 85%; animation-delay: 3s; }
.hero-particle:nth-child(6) { top: 70%; left: 55%; animation-delay: 5s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.4; }
  50% { transform: translateY(-30px) scale(1.5); opacity: 0.8; }
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(26,115,232,0.15);
  border: 1px solid rgba(26,115,232,0.3);
  border-radius: 50px;
  color: var(--accent-light);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 550px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(26,115,232,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(26,115,232,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.4);
}

.btn-dark {
  background: var(--primary);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--primary-light);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat .number span {
  color: var(--accent-light);
}

.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  font-weight: 400;
}

/* ===== ABOUT HIGHLIGHTS ===== */
.about-highlights {
  background: var(--white);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.highlight-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.highlight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

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

.highlight-card .icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(26,115,232,0.08), rgba(26,115,232,0.15));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
}

.highlight-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.highlight-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== ABOUT SECTION ===== */
.about-section {
  background: var(--gray-100);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image-placeholder {
  color: rgba(255,255,255,0.3);
  font-size: 0.9rem;
  text-align: center;
  padding: 40px;
}

.about-image-placeholder .placeholder-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}

.about-content .label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.about-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-content p {
  margin-bottom: 16px;
  color: var(--gray-700);
  line-height: 1.8;
}

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-info-item {
  padding: 16px;
  background: var(--white);
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,0.04);
}

.about-info-item .info-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.about-info-item .info-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
}

/* ===== PRODUCTS ===== */
.products-section {
  background: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-card .product-image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #0a1628, #1a3a6a);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card .product-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 40%, rgba(26,115,232,0.1) 100%);
}

.product-image-placeholder {
  color: rgba(255,255,255,0.25);
  font-size: 0.8rem;
  text-align: center;
  z-index: 1;
}

.product-image-placeholder .placeholder-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
  display: block;
}

.product-card .product-info {
  padding: 28px;
}

.product-card .product-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(26,115,232,0.08);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  margin-bottom: 12px;
}

.product-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.product-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-card .product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition);
}

.product-card .product-link:hover {
  gap: 12px;
}

/* ===== TECHNOLOGY / CAPABILITIES ===== */
.tech-section {
  background: var(--dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.tech-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(26,115,232,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 100%, rgba(26,115,232,0.08) 0%, transparent 50%);
}

.tech-section .section-header h2 {
  color: var(--white);
}

.tech-section .section-header p {
  color: rgba(255,255,255,0.5);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.tech-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
}

.tech-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(26,115,232,0.3);
  transform: translateY(-4px);
}

.tech-card .tech-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}

.tech-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--white);
}

.tech-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* ===== HISTORY / TIMELINE ===== */
.history-section {
  background: var(--white);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-100);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
  padding-right: calc(50% + 40px);
  text-align: right;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
  padding-left: calc(50% + 40px);
  text-align: left;
}

.timeline-item .timeline-dot {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.2);
  z-index: 1;
}

.timeline-item .year {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
}

.timeline-item .event {
  font-size: 0.92rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ===== CERTIFICATIONS ===== */
.cert-section {
  background: var(--gray-100);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cert-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition);
}

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

.cert-card .cert-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(26,115,232,0.08), rgba(26,115,232,0.15));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
}

.cert-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.cert-card p {
  font-size: 0.8rem;
  color: var(--gray-500);
}

/* ===== CONTACT / CTA ===== */
.cta-section {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(26,115,232,0.15) 0%, transparent 60%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 36px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ===== CONTACT PAGE ===== */
.contact-section {
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 16px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info-item .contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(26,115,232,0.08), rgba(26,115,232,0.15));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.contact-info-item p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.contact-form {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 40px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-300);
  border-radius: 10px;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--gray-700);
  background: var(--white);
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.12);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ===== MAP ===== */
.map-section {
  background: var(--gray-100);
}

.map-container {
  border-radius: var(--radius);
  overflow: hidden;
  height: 400px;
  background: var(--gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder {
  text-align: center;
  color: var(--gray-500);
}

.map-placeholder .placeholder-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

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

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 20px;
  color: rgba(255,255,255,0.4);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-contact-info span {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.footer h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

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

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
}

/* ===== PAGE HEADER (Sub pages) ===== */
.page-header {
  background: var(--gradient-hero);
  padding: 140px 0 60px;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(26,115,232,0.12) 0%, transparent 50%);
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header .breadcrumb {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 12px;
}

.page-header .breadcrumb a {
  color: rgba(255,255,255,0.5);
}

.page-header .breadcrumb a:hover {
  color: var(--accent-light);
}

.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--white);
}

.page-header p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.5);
  margin-top: 12px;
  max-width: 600px;
}

/* ===== CEO MESSAGE ===== */
.ceo-section {
  background: var(--white);
}

.ceo-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 60px;
  align-items: start;
}

.ceo-photo {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-300));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ceo-message h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 24px;
  line-height: 1.4;
}

.ceo-message p {
  margin-bottom: 16px;
  line-height: 1.9;
  color: var(--gray-700);
}

.ceo-message .ceo-sign {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
}

.ceo-sign .title {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.ceo-sign .name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-top: 4px;
}

/* ===== VISION ===== */
.vision-section {
  background: var(--gray-100);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.vision-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition);
}

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

.vision-card .vision-icon {
  width: 72px;
  height: 72px;
  background: var(--gradient-accent);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2rem;
  color: var(--white);
}

.vision-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.vision-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== PRODUCT DETAIL ===== */
.product-detail {
  background: var(--white);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.product-detail-grid:nth-child(even) {
  direction: rtl;
}

.product-detail-grid:nth-child(even) > * {
  direction: ltr;
}

.product-detail-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #0a1628, #1a3a6a);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-specs {
  margin-top: 24px;
}

.product-specs table {
  width: 100%;
  border-collapse: collapse;
}

.product-specs td {
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.9rem;
}

.product-specs td:first-child {
  font-weight: 600;
  color: var(--primary);
  width: 140px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-menu > li > a {
    padding: 12px 16px;
  }

  .mega-dropdown {
    position: static;
    box-shadow: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    background: rgba(10, 22, 40, 0.95);
    max-height: none;
    opacity: 1;
    visibility: visible;
    display: none;
  }

  .gnb:hover .mega-dropdown,
  .nav-menu.active ~ .mega-dropdown {
    display: block;
  }

  .mega-dropdown-inner {
    flex-direction: column;
    padding: 12px 16px;
  }

  .mega-col {
    border-left: none;
    padding: 4px 0;
  }

  .mega-col:last-child {
    border-left: none;
  }

  .mega-spacer {
    display: none;
  }

  .mega-col a {
    color: rgba(255,255,255,0.6);
    padding: 8px 16px;
  }

  .mega-col a:hover {
    background: rgba(255,255,255,0.05);
    color: var(--accent-light);
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 1.7rem;
  }

  .highlights-grid,
  .products-grid,
  .tech-grid,
  .vision-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-grid,
  .ceo-grid,
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-detail-grid:nth-child(even) {
    direction: ltr;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    padding-left: 48px;
    padding-right: 0;
    text-align: left;
    flex-direction: row;
  }

  .timeline-item .timeline-dot {
    left: 16px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

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

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

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons {
    flex-direction: column;
  }
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}