/* ===== HEADER & NAVIGATION ===== */

.header {
  position: sticky;
  top: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-grey-100);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

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

.header__content {
  padding: var(--spacing-lg) 0;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  transition: opacity var(--transition-base);
}

.header__logo:hover {
  opacity: 0.8;
}

.header__logo-mark {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: 20px;
  letter-spacing: -1px;
  transition: transform var(--transition-base);
}

.header__logo-mark:hover {
  transform: scale(1.05);
}

.header__logo-mark img {
  width: 100%;
  height: auto;
  display: block;
}

.header__logo-text {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  letter-spacing: -0.5px;
}

.header__logo-subtext {
  display: none;
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

@media (max-width: 768px) {
  .header__logo-subtext {
    display: none;
  }
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav__item {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-grey-500);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
}

.nav__item:hover,
.nav__item.active {
  color: var(--color-accent);
}

.nav__item::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__item:hover::after,
.nav__item.active::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
}

.nav__cta:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-black);
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

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

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .header__content {
    padding: var(--spacing-lg) var(--spacing-lg);
  }

  .nav__toggle {
    display: flex;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-grey-100);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
  }

  .nav.active {
    display: flex;
  }

  .nav__item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-grey-100);
    width: 100%;
  }

  .nav__item::after {
    display: none;
  }

  .nav__cta {
    margin: var(--spacing-lg) 0 0 0;
    width: 100%;
    text-align: center;
  }
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.breadcrumb__item {
  color: var(--color-grey-400);
}

.breadcrumb__item::after {
  content: '/';
  margin-left: var(--spacing-md);
}

.breadcrumb__item:last-child::after {
  display: none;
}

.breadcrumb__item.active {
  color: var(--color-black);
  font-weight: var(--font-weight-semibold);
}

.breadcrumb__link {
  color: var(--color-grey-500);
}

.breadcrumb__link:hover {
  color: var(--color-accent);
}