@font-face {
  font-family: 'Peridot PE Variable';
  src: url('./fonts/Peridot_PE_Variable_Regular.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
}

:root {
  /* 다크 테마 */
  --color-bg: #111418;
  --color-surface: #1E1E22;
  --color-text: #E5EAF0;
  --color-muted: #999;
  --color-primary: #00A68E;
  --color-blue: #0077B6;
  --color-green: #3CC273;
  --color-border: #333;
  --color-shadow: rgba(0,0,0,0.2);
}
body.light-theme {
  --color-bg: #fff;
  --color-surface: #f8f9fa;
  --color-text: #2c3e50;
  --color-muted: #6c757d;
  --color-primary: #00A68E;
  --color-blue: #0077B6;
  --color-green: #3CC273;
  --color-border: #dee2e6;
  --color-shadow: rgba(0,0,0,0.1);
}

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

body {
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  background-color: var(--color-bg);
  color: var(--color-text);
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 0;
}

.flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.center {
  text-align: center;
  margin-top: 2rem;
}

.center .btn {
  padding: 0.8rem 2rem;
  font-size: 1rem;
  min-width: 200px;
}

/* Header */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid #333;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem;
}

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

.logo img {
  height: 1.5rem;
  width: auto;
  object-fit: contain;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-blue);
  text-decoration: none;
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  margin-left: 0.5rem;
  letter-spacing: -0.02em;
  transition: color 0.3s ease;
}

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

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

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--color-blue);
}

.nav-links a.active {
  color: var(--color-blue);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-blue);
  transform: scaleX(1);
  transition: transform 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-blue);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-blue);
  transform: scale(1.1);
}

.theme-toggle-btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-blue);
}

/* Hero Section */
.hero {
  position: relative;
  background: url('./images/background.png') no-repeat center center;
  background-size: cover;
  padding: 120px 0;
  color: white;
  text-align: center;
  font-family: 'Peridot PE Variable', sans-serif;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

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

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  color: white;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.hero-buttons .btn {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

@media (max-width: 768px) {
  .hero {
    padding: 80px 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

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

.cta-buttons a {
  display: inline-block;
  margin: 0 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background-color: transparent;
}

.btn-primary:hover,
.btn-outline:hover {
  opacity: 0.85;
}

/* About */
.about {
  font-family: 'Peridot PE Variable', sans-serif;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
  padding: 6rem 0;
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
  pointer-events: none;
}

.about-header {
  max-width: 1000px;
  margin: 0 auto 4rem;
  position: relative;
  z-index: 1;
}

.about h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-text);
  text-align: left;
}

.about .subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  text-align: left;
}

/* Company Overview */
.company-overview {
  max-width: 1200px;
  margin: 0 auto 6rem;
  position: relative;
  z-index: 1;
}

.overview-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.overview-text h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  font-weight: 600;
}

.overview-text p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
}

.overview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.stat-item {
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0;
  margin: 0 1.5rem 0 0;
  display: inline-block;
}

.overview-visual {
  position: relative;
}

.overview-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Leadership Section */
.leadership-section {
  max-width: 1200px;
  margin: 0 auto 6rem;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-text);
  font-weight: 600;
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.team-member {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

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

.team-member:hover::before {
  transform: scaleX(1);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.member-image {
  flex-shrink: 0;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
}

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

.member-content {
  flex: 1;
  padding-top: 0.5rem;
}

.member-content h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-weight: 600;
}

.member-position {
  font-size: 1.2rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.member-role {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.member-bio {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.member-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.75rem 1.5rem;
  background: rgba(0, 166, 142, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(0, 166, 142, 0.2);
}

.member-link:hover {
  color: var(--color-blue);
  transform: translateX(5px);
  background: rgba(0, 166, 142, 0.15);
}

/* Team Section */
.team-section {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.team-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.team-card {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

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

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.card-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.card-icon i {
  font-size: 1.5rem;
  color: white;
}

.card-header h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-weight: 600;
}

.card-position {
  font-size: 0.9rem;
  color: var(--color-primary);
  font-weight: 500;
}

.card-content p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.card-link:hover {
  color: var(--color-blue);
  transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .overview-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .team-cards {
    grid-template-columns: 1fr;
    max-width: 600px;
  }
}

@media (max-width: 768px) {
  .about {
    padding: 4rem 0;
  }
  
  .overview-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .overview-image {
    height: 300px;
  }
  
  .team-member {
    padding: 2rem;
  }
  
  .member-image {
    width: 100px;
    height: 100px;
  }
  
  .team-cards {
    grid-template-columns: 1fr;
  }
}

/* Intro Section */
.intro {
  background-color: var(--color-surface);
  padding: 4rem 2rem;
  color: var(--color-text);
  min-height: 400px;
  display: flex;
  align-items: center;
}

.intro .container {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 100%;
}

.intro .text {
  flex: 1;
}

.intro .visual {
  flex: 1;
  height: 300px;
}

.intro ul {
  padding-left: 1.5rem;
}

.intro ul li {
  margin-bottom: 0.5rem;
}

.wave-image {
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

/* Models */
.models {
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface) 100%);
  padding: 6rem 0;
  position: relative;
}

.models::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  pointer-events: none;
}

.models-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  z-index: 1;
}

.models-title {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--color-text);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.models-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
  position: relative;
  z-index: 1;
}

.model-card {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

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

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

.model-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}

.model-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.model-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.model-card:hover .model-icon::before {
  transform: translateX(100%);
}

.model-icon i {
  font-size: 2rem;
  color: white;
  z-index: 1;
}

.model-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.model-content p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.model-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  padding: 1.5rem 2.5rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.model-card:hover .model-overlay {
  transform: translateY(0);
}

.model-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.model-link i {
  transition: transform 0.3s ease;
}

.model-link:hover i {
  transform: translateX(5px);
}

.models-cta {
  text-align: center;
  position: relative;
  z-index: 1;
}

.models-cta .btn {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  border: none;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(0, 166, 142, 0.3);
}

.models-cta .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 166, 142, 0.4);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .model-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .models {
    padding: 4rem 0;
  }
  
  .models-title {
    font-size: 2.5rem;
  }
  
  .model-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .model-card {
    padding: 2rem;
  }
  
  .model-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
  }
  
  .model-icon i {
    font-size: 1.5rem;
  }
}

/* About */
.about {
  background-color: var(--color-surface);
  padding: 4rem 0;
}

.lab-profile {
  display: flex;
  gap: 2rem;
  max-width: 1000px;
  margin: 3rem auto 0;
  align-items: center;
}

.lab-image {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
  background-color: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 4px 20px var(--color-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lab-photo {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  border-radius: 4px;
}

.lab-content {
  flex-grow: 1;
  padding-top: 1rem;
}

.lab-header {
  margin-bottom: 1rem;
}

.lab-header h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.lab-position {
  font-size: 1.1rem;
  color: var(--color-blue);
  font-weight: 500;
  margin-bottom: 1rem;
}

.lab-bio {
  color: var(--color-muted);
}

.lab-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

.lab-link i {
  font-size: 1.1rem;
}

.lab-link:hover {
  color: var(--color-blue);
  transform: translateX(5px);
}

.lab-link:active {
  transform: translateX(3px);
}

@media (max-width: 900px) {
  .lab-profile {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
  }

  .lab-image {
    width: 250px;
    height: 250px;
  }

  .lab-content {
    padding-top: 0;
  }

  .lab-link {
    margin-top: 1.5rem;
  }
}

.about-section {
  padding: 4rem 0;
}

.about-section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

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

.about-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-text {
  padding: 2rem;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.ceo-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.ceo-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.ceo-image img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.ceo-info {
  padding: 2rem;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.ceo-info h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.ceo-info p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.brain-lab-section {
  padding: 4rem 0;
  background: var(--color-surface);
}

.brain-lab-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.brain-lab-image {
  text-align: center;
}

.brain-lab-image img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.brain-lab-info {
  padding: 2rem;
  background: var(--color-bg);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.brain-lab-info h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.brain-lab-info p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-muted);
}

@media (max-width: 768px) {
  .about-content,
  .ceo-content,
  .brain-lab-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0 1rem;
  }

  .about-image,
  .ceo-image,
  .brain-lab-image {
    order: -1;
  }

  .about-text,
  .ceo-info,
  .brain-lab-info {
    padding: 1.5rem;
  }
}

.ceo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-surface);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.ceo-link i {
  font-size: 1.1rem;
}

.ceo-link:hover {
  color: var(--color-blue);
  transform: translateX(5px);
  background: var(--color-bg);
}

.ceo-link:active {
  transform: translateX(3px);
}

@media (max-width: 900px) {
  .ceo-link {
    margin-top: 1.5rem;
    padding: 0.5rem 1rem;
  }
}

html {
  scroll-behavior: smooth;
}

.research-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.research-info p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.research-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.research-link:hover {
  color: var(--color-blue);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .contact-form {
    flex-direction: column;
    margin: 0 auto;
  }
  
  .contact-form .btn {
    width: 100%;
  }
  
  .product-info, .research-info {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

.lab-profiles-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 12rem auto 0;
}

.lab-profiles-container .lab-profile {
  margin: 0;
  max-width: none;
  flex-direction: column;
  text-align: center;
  gap: 1.5rem;
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.lab-profiles-container .lab-profile:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.lab-profiles-container .lab-content {
  padding-top: 0;
}

.company-info {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid #333;
  margin-top: 2rem;
}

.company-info-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.company-info-korean,
.company-info-english {
  text-align: left;
}

.company-info h4 {
  color: var(--color-text);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.company-info p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.company-info a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.company-info a:hover {
  color: var(--color-blue);
}

/* Technology Section */
.technology-section {
  font-family: 'Peridot PE Variable', 'Helvetica Neue', sans-serif;
  padding: 80px 0;
  background-color: var(--color-surface);
}

.tech-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--color-text);
  text-align: left;
}

.tech-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.tech-text p {
  font-size: 1.1rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 3rem;
}

.tech-features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.tech-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.tech-feature i {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-top: 0.2rem;
}

.tech-feature h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.tech-feature p {
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0;
}

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

.tech-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .tech-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .tech-text {
    text-align: center;
  }
  
  .tech-feature {
    text-align: left;
  }
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
  border-top: 1px solid #333;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.footer-logo {
  height: 1.2rem;
  width: auto;
  object-fit: contain;
  margin-bottom: 1.5rem;
}

.brand-description {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer-section h3 {
  color: var(--color-text);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.product-info h4 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.product-info p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.contact-info p {
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.contact-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-link:hover {
  color: var(--color-blue);
}

.contact-form {
  display: flex;
  gap: 1rem;
  max-width: 400px;
}

.contact-form input {
  flex: 1;
  padding: 0.8rem;
  border: 1px solid #333;
  border-radius: 4px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
}

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

.contact-form .btn {
  white-space: nowrap;
  padding: 0.8rem 1.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #333;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.product-link:hover {
  color: var(--color-blue);
}

.researcher-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.researcher h4 {
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.researcher p {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.research-info {
  margin-bottom: 1rem;
}

.research-info p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.research-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.research-link:hover {
  color: var(--color-blue);
}

@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    text-align: left;
    align-items: flex-start;
  }
  
  .brand-description {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .product-info, .research-info {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .contact-form {
    flex-direction: column;
  }
  
  .contact-form .btn {
    width: 100%;
  }
}

/* BrAIn Lab Icon Styles */
.brain-lab-icon {
  background: white !important;
  border-radius: 15px;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brain-lab-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 10px;
}

/* AOS Animation Styles */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}

[data-aos-delay] {
  transition-delay: 0s;
}

[data-aos-delay="100"] {
  transition-delay: 0.1s;
}

[data-aos-delay="200"] {
  transition-delay: 0.2s;
}

[data-aos-delay="300"] {
  transition-delay: 0.3s;
}

[data-aos-delay="400"] {
  transition-delay: 0.4s;
}

/* Prevent elements from disappearing when scrolling up */
[data-aos].aos-animate {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* 사용자 아이콘 및 드롭다운 */
.user-menu {
  position: relative;
  display: flex;
  align-items: center;
}

.user-menu > a {
  color: var(--color-blue);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  background: none;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none !important;
  cursor: pointer;
}
.user-menu > a:hover, .user-menu > a:focus {
  background: rgba(0, 119, 182, 0.13);
  color: var(--color-blue);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.user-menu > a::after { display: none !important; content: none !important; }

.user-dropdown {
  position: absolute;
  top: 140%;
  right: 0;
  background: #fff;
  color: #222;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  min-width: 220px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 2000;
  display: none;
  animation: dropdown-fadein 0.2s;
}

@keyframes dropdown-fadein {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.user-dropdown strong {
  font-size: 1.08em;
  color: var(--color-blue);
}
.user-dropdown span {
  display: block;
  margin-top: 2px;
}
.user-dropdown a {
  color: #d00;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.user-dropdown a:hover {
  color: #a00;
}

@media (max-width: 600px) {
  .user-dropdown {
    right: -30px;
    min-width: 170px;
    font-size: 0.95em;
  }
}

/* 필요시 라이트 테마에서만 다르게 하고 싶은 스타일은 아래처럼 추가 */
body.light-theme .site-header {
  box-shadow: 0 2px 4px var(--color-shadow);
  border-bottom: 1px solid var(--color-border);
}
body.light-theme .user-dropdown {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px var(--color-shadow);
}