/* HEADER */
.dr-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.dr-header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--container-px);
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-primary);
}

.dr-header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.dr-header-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--logo-w);
  height: var(--logo-h);
}

.dr-header-brand-text {
  font-family: var(--font-secondary);
  font-size: var(--font-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
}

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

.dr-nav-list {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
}

.dr-nav-link {
  font-size: var(--font-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  text-decoration: none;
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.dr-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-fast);
}

.dr-nav-link:hover,
.dr-nav-link:focus-visible {
  color: var(--color-primary);
}

.dr-nav-link:hover::after,
.dr-nav-link:focus-visible::after {
  width: 100%;
}

/* BURGER */
.dr-burger {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--border-radius-full);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-white);
  padding: 0;
  margin: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.dr-burger-bar {
  position: relative;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-text-dark);
  border-radius: 999px;
  transition: background-color var(--transition-fast);
}

.dr-burger-bar::before,
.dr-burger-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-text-dark);
  border-radius: 999px;
  transition: transform var(--transition-base), top var(--transition-base), opacity var(--transition-base);
}

.dr-burger-bar::before {
  top: -6px;
}

.dr-burger-bar::after {
  top: 6px;
}

.dr-header.dr-open .dr-burger {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
}

.dr-header.dr-open .dr-burger-bar {
  background-color: transparent;
}

.dr-header.dr-open .dr-burger-bar::before {
  top: 0;
  transform: rotate(45deg);
}

.dr-header.dr-open .dr-burger-bar::after {
  top: 0;
  transform: rotate(-45deg);
}

.dr-burger:hover,
.dr-burger:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-bg-light);
}

/* MOBILE MENU */
.dr-mobile-menu {
  display: none;
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.dr-header.dr-open + .dr-mobile-menu {
  display: block;
}

.dr-mobile-menu-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: var(--space-sm) var(--container-px) var(--space-md);
}

.dr-mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dr-mobile-nav-link {
  display: block;
  width: 100%;
  padding: 0.6rem 0;
  font-size: var(--font-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  text-decoration: none;
  border-radius: var(--border-radius-md);
  background-color: transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dr-mobile-nav-link:hover,
.dr-mobile-nav-link:focus-visible {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
}

/* RESPONSIVE NAV BEHAVIOR */
@media (max-width: 767px) {
  .dr-nav {
    display: none;
  }

  .dr-burger {
    display: inline-flex;
  }
}

@media (min-width: 768px) {
  .dr-nav {
    display: flex;
  }

  .dr-burger {
    display: none;
  }

  .dr-mobile-menu {
    display: none !important;
  }
}

/* FOOTER */
.dr-footer {
  background-color: var(--color-text-dark);
  color: var(--color-sky-gray);
  font-family: var(--font-primary);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.dr-footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.dr-footer-top {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.5fr) minmax(0, 1.5fr) minmax(0, 2fr);
  gap: var(--space-xl);
  align-items: flex-start;
}

.dr-footer-brand {
  max-width: 22rem;
}

.dr-footer-logo-wrap {
  width: var(--logo-w);
  height: var(--logo-h);
  margin-bottom: var(--space-sm);
}

.dr-footer-tagline {
  margin: 0;
  font-size: var(--font-sm);
  line-height: var(--line-height-normal);
  color: var(--color-secondary-light);
}

.dr-footer-heading {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-secondary);
  font-size: var(--font-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-sky-gray);
}

.dr-footer-nav-list,
.dr-footer-legal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.dr-footer-nav-item,
.dr-footer-legal-item {
  margin: 0;
}

.dr-footer-link {
  color: var(--color-secondary-light);
  font-size: var(--font-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.dr-footer-link:hover,
.dr-footer-link:focus-visible {
  color: var(--color-accent);
}

.dr-footer-contact {
  font-size: var(--font-sm);
}

.dr-footer-contact-item {
  margin: 0 0 0.35rem;
}

.dr-footer-contact-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-sky-gray);
  margin-right: 0.25rem;
}

.dr-footer-bottom {
  border-top: 1px solid rgba(229, 231, 235, 0.14);
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dr-footer-disclaimer {
  margin: 0;
  font-size: var(--font-sm);
  color: var(--color-secondary-light);
  line-height: var(--line-height-normal);
}

.dr-footer-meta {
  margin: 0;
  font-size: var(--font-sm);
  color: var(--color-sky-gray);
}

@media (max-width: 1023px) {
  .dr-footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: var(--space-lg);
  }
}

@media (max-width: 767px) {
  .dr-footer {
    padding: var(--space-xl) 0 var(--space-lg);
  }

  .dr-footer-top {
    grid-template-columns: minmax(0, 1fr);
  }

  .dr-footer-bottom {
    gap: 0.75rem;
  }
}