.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--header-height, 72px);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background: rgba(245, 247, 245, 0.85);
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-title-lg);
  color: var(--color-primary);
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text span {
  font-size: var(--text-label-md);
  font-weight: 500;
  color: var(--color-on-surface-variant);
}


.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  position: relative;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-body-sm);
  color: var(--color-on-surface);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

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

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

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


.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-dropdown-trigger svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--color-surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-body-sm);
  color: var(--color-on-surface);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-dropdown-item:hover {
  background: var(--color-surface-container);
  color: var(--color-primary);
}


.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: var(--z-tooltip);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-on-surface);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  max-height: calc(100vh - var(--header-height, 72px));
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
  padding-top: var(--space-8);
  padding-bottom: var(--space-12);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  width: 100%;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.nav-mobile-link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  min-height: 56px;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-title-md);
  font-weight: 600;
  color: var(--color-on-surface);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

.nav-mobile-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.nav-mobile-dropdown {
  width: 100%;
  text-align: left;
}

.nav-mobile-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 56px;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-title-md);
  font-weight: 600;
  color: var(--color-on-surface);
  text-decoration: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-mobile-dropdown-trigger:hover,
.nav-mobile-dropdown-trigger.active {
  background: var(--color-surface-container);
  color: var(--color-primary);
}

.nav-mobile-dropdown-trigger:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.nav-mobile-dropdown-trigger svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.nav-mobile-dropdown-trigger.open svg {
  transform: rotate(180deg);
}

.nav-mobile-dropdown-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-4);
  padding-top: var(--space-1);
  padding-bottom: var(--space-2);
}

.nav-mobile-dropdown-menu.open {
  display: flex;
}

.nav-mobile-dropdown-item {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-body-md);
  color: var(--color-on-surface-variant);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-mobile-dropdown-item:hover,
.nav-mobile-dropdown-item.active {
  background: var(--color-surface-container);
  color: var(--color-primary);
}

.nav-mobile-dropdown-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}


body.nav-open {
  overflow: hidden;
}



.footer {
  background: var(--color-surface-container-high);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  margin-top: var(--space-4);
  color: var(--color-on-surface-variant);
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-display);
  font-size: var(--text-title-sm);
  font-weight: 600;
  color: var(--color-on-surface);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-3);
}

.footer-contact-item strong {
  color: var(--color-on-surface);
  font-weight: 500;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-outline-variant);
  font-size: var(--text-body-sm);
  color: var(--color-on-surface-variant);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  color: var(--color-on-surface-variant);
  text-decoration: none;
}

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



.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-label-lg);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}


.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-container));
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}


.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-on-secondary);
}

.btn-secondary:hover {
  background: var(--color-secondary-container);
}


.btn-ghost {
  background: transparent;
  color: var(--color-on-surface);
  box-shadow: inset 0 0 0 1px rgba(196, 199, 196, 0.2);
}

.btn-ghost:hover {
  background: var(--color-surface-container);
  box-shadow: none;
}


.btn-outline {
  background: transparent;
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

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


.btn-text {
  background: transparent;
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
}

.btn-text:hover {
  background: var(--color-surface-container);
}


.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-label-md);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-body-md);
}



.card {
  background: var(--color-surface-container-highest);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.card-content {
  padding: var(--space-6);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-title-lg);
  font-weight: 600;
  color: var(--color-on-surface);
  margin-bottom: var(--space-2);
}

.card-text {
  color: var(--color-on-surface-variant);
  font-size: var(--text-body-sm);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card-link:hover svg {
  transform: translateX(4px);
}


.card-flat {
  background: var(--color-surface-container);
  box-shadow: none;
}

.card-flat:hover {
  transform: none;
  box-shadow: none;
  background: var(--color-surface-container-high);
}

.card-elevated {
  background: var(--color-surface-container-lowest);
  box-shadow: var(--shadow-md);
}

.card-elevated:hover {
  box-shadow: var(--shadow-xl);
}



.service-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background: var(--color-surface-container-highest);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.service-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-container);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
}

.service-card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.service-card-title {
  font-family: var(--font-display);
  font-size: var(--text-title-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.service-card-text {
  color: var(--color-on-surface-variant);
  font-size: var(--text-body-sm);
  flex-grow: 1;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  font-weight: 500;
  color: var(--color-primary);
}



.project-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface-container-high);
}

.project-card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card-image {
  transform: scale(1.05);
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 28, 28, 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
}

.project-card-category {
  font-size: var(--text-label-md);
  font-weight: 500;
  color: var(--color-primary-container);
  margin-bottom: var(--space-2);
}

.project-card-title {
  font-family: var(--font-display);
  font-size: var(--text-title-lg);
  font-weight: 600;
  color: white;
}

.project-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.project-card-spec {
  font-size: var(--text-label-md);
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}



.breadcrumb {
  font-size: var(--text-body-sm);
  color: var(--color-on-surface-variant);
  padding: var(--space-3) 0 var(--space-6);
  list-style: none;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}


.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  background: var(--color-outline-variant);
  border-radius: 50%;
}

.breadcrumb-link {
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb-current {
  color: var(--color-on-surface);
  font-weight: 500;
}



.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--color-on-surface);
  margin-bottom: var(--space-2);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-body-md);
  color: var(--color-on-surface);
  background: var(--color-surface-container-lowest);
  border: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  background: var(--color-surface-container-low);
  box-shadow: inset 0 0 0 2px var(--color-primary);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-on-surface-variant);
  opacity: 0.6;
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23424242' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-12);
}


.form-input.error,
.form-textarea.error,
.form-select.error {
  box-shadow: inset 0 0 0 2px var(--color-error);
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-body-sm);
  color: var(--color-error);
}

.form-hint {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-body-sm);
  color: var(--color-on-surface-variant);
}



.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-label-md);
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--color-surface-container);
  color: var(--color-on-surface-variant);
}

.badge-primary {
  background: var(--color-primary-container);
  color: var(--color-primary);
}

.badge-secondary {
  background: var(--color-secondary-container);
  color: var(--color-secondary);
}



.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-surface-container-high);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.icon-box svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.icon-box-sm {
  width: 40px;
  height: 40px;
}

.icon-box-sm svg {
  width: 20px;
  height: 20px;
}

.icon-box-lg {
  width: 64px;
  height: 64px;
}

.icon-box-lg svg {
  width: 32px;
  height: 32px;
}



.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-body-sm);
  color: var(--color-on-surface-variant);
  margin-top: var(--space-2);
}



.alert {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface-container);
}

.alert-icon svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.alert-success {
  background: var(--color-tertiary-container);
}

.alert-success .alert-icon {
  color: var(--color-tertiary);
}

.alert-error {
  background: var(--color-error-container);
}

.alert-error .alert-icon {
  color: var(--color-error);
}