.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(237, 246, 249, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 9999;
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.site-header.scrolled {
  background: rgba(237, 246, 249, 0.98);
  box-shadow: 0 2px 20px rgba(43, 45, 66, 0.1);
}

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

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-menu a {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}

.nav-menu a:hover {
  color: var(--accent);
}

.nav-menu a.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.phone-number {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 10000;
}

.mobile-menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  margin-bottom: 4px;
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(rgba(43, 45, 66, 0.4), rgba(43, 45, 66, 0.6)), url('../images/hero1-modern-office-technology_orig.jpg') center/cover;
  background-attachment: fixed;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  color: white;
  z-index: 2;
}

.hero-content h1 {
  color: white;
  font-size: 4rem;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
  opacity: 0;
  animation: fadeInUp 1s ease 0.8s forwards;
}

.hero-cta {
  opacity: 0;
  animation: fadeInUp 1s ease 1.1s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
  from {
    opacity: 0;
    transform: translateY(30px);
  }
}

.content-section {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.content-section:nth-child(even) {
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

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

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.content-card {
  background: var(--bg-card);
  padding: 3rem 2rem;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(43, 45, 66, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.content-card:hover {
  transform: translateY(-10px) perspective(1000px) rotateY(2deg);
  box-shadow: 0 20px 60px rgba(43, 45, 66, 0.15);
}

.content-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 1.5rem;
}

.content-card h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.content-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.archive-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.archive-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(131, 197, 190, 0.2);
}

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

.archive-item-content {
  padding: 2rem;
}

.archive-item h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.archive-item-meta {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.contact-form-wrapper {
  background: var(--bg-card);
  padding: 3rem;
  border-radius: 12px;
  box-shadow: 0 15px 50px rgba(43, 45, 66, 0.1);
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(131, 197, 190, 0.2);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 2px;
}

.checkbox-group label {
  margin-bottom: 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

.form-error {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  display: none;
}

.form-success {
  background: #d4edda;
  color: #155724;
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 2rem;
  display: none;
}

.site-footer {
  background: var(--primary);
  color: var(--water);
  padding: 4rem 0 2rem 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h4 {
  color: var(--water);
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.footer-section p,
.footer-section li {
  color: rgba(237, 246, 249, 0.8);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: rgba(237, 246, 249, 0.8);
  transition: all 0.3s ease;
}

.footer-section a:hover {
  color: var(--seafoam);
}

.footer-bottom {
  border-top: 1px solid rgba(237, 246, 249, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(237, 246, 249, 0.6);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--primary);
  color: var(--water);
  padding: 1.5rem;
  z-index: 9998;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
}

.cookie-banner p {
  margin: 0;
  flex: 1;
}

.cookie-banner-actions {
  display: flex;
  gap: 1rem;
}

.sound-toggle {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  z-index: 1000;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sound-toggle:hover {
  background: var(--accent-hover);
  transform: scale(1.1);
}

.reading-mode-toggle {
  position: fixed;
  top: 50%;
  right: 2rem;
  transform: translateY(-50%);
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  writing-mode: vertical-lr;
  font-size: 0.8rem;
}

.reading-mode-toggle:hover {
  background: var(--accent-hover);
}

body.reading-mode .site-header,
body.reading-mode .site-footer,
body.reading-mode .hero-section,
body.reading-mode .section-header {
  display: none;
}

body.reading-mode .content-section {
  background: #f8f6f0;
  padding: 3rem 0;
}

body.reading-mode .container {
  max-width: 800px;
  filter: sepia(10%);
}

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

  .main-navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-card);
    padding: 5rem 2rem 2rem;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 9999;
  }

  .main-navigation.active {
    right: 0;
  }

  .nav-menu {
    flex-direction: column;
    gap: 2rem;
    align-items: flex-start;
  }

  .header-cta {
    margin-top: 2rem;
    flex-direction: column;
    align-items: flex-start;
  }

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .cookie-banner-content {
    flex-direction: column;
    text-align: center;
  }

  .sound-toggle {
    bottom: 5rem;
  }

  .reading-mode-toggle {
    right: 1rem;
    writing-mode: horizontal-tb;
    top: auto;
    bottom: 8rem;
    transform: none;
  }
}