body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-steel);
}

.logo__icon {
  width: 36px;
  height: 36px;
}

.logo span {
  color: var(--color-amber);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-steel);
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-amber);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-amber);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--space-md);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  padding: 4px;
}

.menu-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-steel);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, rgba(74, 85, 104, 0.92), rgba(45, 55, 72, 0.88)),
    url("https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1920&q=80") center/cover no-repeat;
  color: var(--color-white);
}

.hero__content {
  max-width: 680px;
}

.hero__label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-amber);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero__desc {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--space-2xl);
  max-width: 52ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Stats */
.stats {
  background: var(--color-steel);
  padding-block: var(--space-3xl);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stats .counter__value {
  color: var(--color-white);
}

.stats .counter__label {
  color: rgba(255, 255, 255, 0.75);
}

/* Services */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  padding: var(--space-2xl);
  text-align: center;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  color: var(--color-amber);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-steel);
  margin-bottom: var(--space-sm);
}

.service-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Portfolio */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.portfolio__grid {
  columns: 3;
  column-gap: var(--space-lg);
}

.portfolio__item {
  break-inside: avoid;
  margin-bottom: var(--space-lg);
  opacity: 1;
  transform: scale(1);
  transition: opacity var(--transition), transform var(--transition);
}

.portfolio__item.is-hidden {
  display: none;
}

.portfolio__item img {
  width: 100%;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.portfolio__caption {
  padding: var(--space-lg);
}

.portfolio__caption h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-steel);
  margin-bottom: var(--space-xs);
}

.portfolio__caption p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.portfolio__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-amber);
  margin-bottom: var(--space-xs);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin-inline: auto;
  padding-left: var(--space-2xl);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-2xl);
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline__item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-2xl) + 2px);
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-amber);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-amber);
}

.timeline__year {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-amber);
  margin-bottom: var(--space-xs);
}

.timeline__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-steel);
  margin-bottom: var(--space-xs);
}

.timeline__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Quote form */
.quote {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.quote__info h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--color-steel);
  margin-bottom: var(--space-md);
}

.quote__info p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.quote__features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
}

.quote__features svg {
  flex-shrink: 0;
  color: var(--color-amber);
}

.quote__form {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding-block: var(--space-3xl) var(--space-xl);
}

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

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer__brand span {
  color: var(--color-amber);
}

.footer h3 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer a {
  display: block;
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
  transition: color var(--transition);
}

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

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8125rem;
  text-align: center;
}

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

  .portfolio__grid {
    columns: 2;
  }

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

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

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
  }

  .nav__cta {
    margin-left: 0;
    margin-top: var(--space-sm);
  }

  .nav__cta .btn {
    width: 100%;
  }

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

  .portfolio__grid {
    columns: 1;
  }

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

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

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

  .stats__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}