/* ITmoou Website Styles */

:root {
  --primary-blue: #0052A5;
  --dark-blue: #003366;
  --light-blue: #E6F0FF;
  --text-dark: #333333;
  --text-gray: #666666;
  --bg-gray: #F5F5F5;
  --white: #FFFFFF;
}

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

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
}

/* Header Styles */
.header {
  background: transparent;
  box-shadow: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.3s ease;
}

.logo img {
  height: 40px;
  margin-right: 10px;
}

/* Navigation */
.main-nav {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem;
  display: block;
}

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

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 200px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  border-radius: 4px;
  margin-top: 0.5rem;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--text-dark);
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.dropdown-item:hover {
  background: var(--light-blue);
  color: var(--primary-blue);
}

/* Main Slider */
.main-slider {
  margin-top: 0;
  position: relative;
  height: 680px;
  overflow: hidden;
}

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

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

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

.slide-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--white);
  z-index: 10;
  padding: 2rem 3rem;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  max-width: 90%;
}

.slide-content h2 {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.slide-content p {
  font-size: 1.25rem;
  margin-bottom: 0;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

/* Slider Controls */
.slider-controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 20;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  border: 2px solid var(--white);
  cursor: pointer;
  transition: all 0.3s ease;
}

.slider-dot.active {
  background: var(--white);
  transform: scale(1.2);
}

/* Content Section */
.content-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.5rem;
  color: var(--dark-blue);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-gray);
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 12px rgba(0,0,0,0.15);
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-content {
  padding: 2rem;
}

.card-title {
  font-size: 1.5rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-gray);
  line-height: 1.8;
}

/* Footer */
.footer {
  background: #000000;
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-content {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-section {
  flex: 0 0 auto;
}

.footer-logo {
  flex: 0 0 280px;
}

.footer-info {
  flex: 0 0 auto;
  max-width: none;
  margin-left: auto;
  padding-left: 4rem;
  text-align: right;
}

.footer-main-info {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.footer-phone {
  font-size: 1.8rem;
  font-weight: bold;
  color: white;
  display: block;
  margin-top: 0.3rem;
  letter-spacing: 0.5px;
}

.footer-copyright {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin-top: 1rem;
  white-space: nowrap;
}

.footer-small {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.footer-address {
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  line-height: 1.8;
}

.footer-link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-link:hover {
  color: white;
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.5rem;
  justify-content: flex-end;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--primary-blue);
  transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    height: auto;
    padding: 1rem;
  }

  .main-nav {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }

  .nav-item {
    width: 100%;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    margin-top: 0;
  }

  .main-slider {
    height: 400px;
  }

  .footer-content {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-logo,
  .footer-info,
  .footer-social {
    flex: 1 1 auto;
    max-width: 100%;
  }

  .slide-content h2 {
    font-size: 2rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }
}

/* Utility Classes */
.hidden {
  display: none;
}

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

.mt-4 {
  margin-top: 2rem;
}

.mb-4 {
  margin-bottom: 2rem;
}