/* Header component styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 24px;
  pointer-events: none;
}

.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background-color: var(--dt-ink);
  border: 1px solid var(--dt-border-ivory);
  border-radius: var(--dt-radius-pill);
  padding: 8px 16px;
  box-shadow: var(--dt-shadow-float);
  pointer-events: auto;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--dt-ivory);
}

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

.site-header__brand-text {
  font-family: var(--dt-font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  justify-content: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--dt-ivory);
  text-decoration: none;
  padding: 8px 0;
  position: relative;
  transition: color var(--dt-transition-fast);
  white-space: nowrap;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background-color: var(--dt-teal);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dt-transition-fast);
}

.site-header__nav-link:hover {
  color: var(--dt-teal);
}

.site-header__nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.2;
  border-radius: var(--dt-radius-sharp);
  border: 1px solid var(--dt-ember);
  background-color: var(--dt-ember);
  color: var(--dt-ivory);
  transition: background-color var(--dt-transition-fast), border-color var(--dt-transition-fast);
  white-space: nowrap;
  min-height: 40px;
}

.site-header__cta:hover {
  background-color: #a85a32;
  border-color: #a85a32;
}

.site-header__cta:active {
  background-color: #8f4c2a;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--dt-border-ivory-strong);
  border-radius: var(--dt-radius-small);
  cursor: pointer;
  transition: border-color var(--dt-transition-fast), background-color var(--dt-transition-fast);
}

.site-header__toggle:hover {
  border-color: var(--dt-teal);
}

.site-header__toggle:focus-visible {
  outline: var(--dt-focus-ring);
  outline-offset: var(--dt-focus-offset);
}

.site-header__toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--dt-ivory);
  border-radius: 1px;
  transition: transform var(--dt-transition-fast), opacity var(--dt-transition-fast);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) {
  opacity: 0;
}

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

/* Collision prevention for fixed header */
.site-header + * {
  margin-top: 80px;
}

/* Mobile styles */
@media (max-width: 991px) {
  .site-header {
    padding: 12px 16px;
  }

  .site-header__inner {
    padding: 8px 12px;
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }

  .site-header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background-color: var(--dt-ink);
    border-left: 1px solid var(--dt-border-ivory);
    box-shadow: var(--dt-shadow-modal);
    transform: translateX(100%);
    transition: transform var(--dt-transition-fast);
    z-index: 1001;
    display: block;
    padding: 24px;
    overflow-y: auto;
  }

  .site-header__nav.is-open {
    transform: translateX(0);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .site-header__nav-item {
    margin: 0;
  }

  .site-header__nav-link {
    display: block;
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--dt-border-ivory);
  }

  .site-header__nav-link::after {
    display: none;
  }

  .site-header__actions {
    gap: 8px;
  }

  .site-header__cta {
    padding: 8px 16px;
    font-size: 0.8125rem;
  }

  .site-header__toggle {
    display: flex;
  }
}

@media (max-width: 479px) {
  .site-header {
    padding: 8px 12px;
  }

  .site-header__inner {
    padding: 6px 10px;
    gap: 12px;
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }

  .site-header__brand-text {
    font-size: 1rem;
  }

  .site-header__cta {
    padding: 6px 12px;
    font-size: 0.75rem;
    min-height: 36px;
  }

  .site-header__toggle {
    width: 36px;
    height: 36px;
  }

  .site-header__toggle-line {
    width: 18px;
  }
}

/* Overlay for mobile menu */
.site-header__overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dt-transition-fast);
}