/* ============================================================
   Sameday Logistics Health — nav.css
   Sticky top nav + mobile menu + footer
   ============================================================ */

/* ----- Top bar (utility) ----------------------------------- */
.top-bar {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
  font-size: 0.8125rem;
  padding: 8px 0;
}

.top-bar__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.top-bar a {
  color: var(--color-inverse-text);
  margin-right: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.top-bar a:hover { color: var(--color-teal-light); }

.top-bar__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.top-bar__tagline { opacity: 0.85; }

@media (max-width: 767px) {
  .top-bar__tagline { display: none; }
}

/* ----- Site header ----------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-neutral);
  transition: box-shadow var(--dur-fast) var(--ease-out);
}

.site-header.is-scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.site-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  gap: 24px;
}

.site-header__logo img {
  height: 48px;
  width: auto;
  display: block;
}

@media (min-width: 768px) {
  .site-header__logo img { height: 60px; }
}

/* ----- Primary nav ----------------------------------------- */
.primary-nav {
  display: none;
}

.primary-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.primary-nav__link {
  display: inline-flex;
  align-items: center;
  height: 72px;
  padding: 0 14px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  position: relative;
}

.primary-nav__link:hover {
  color: var(--color-teal);
}

.primary-nav__link.is-active {
  color: var(--color-teal);
}

.primary-nav__link.is-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--color-teal);
}

/* ----- Dropdown -------------------------------------------- */
.has-dropdown {
  position: relative;
}

.has-dropdown__toggle {
  background: none;
  border: 0;
  padding: 0 14px;
  height: 72px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.has-dropdown__toggle::after {
  content: "";
  width: 7px; height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur-fast) var(--ease-out);
}

.has-dropdown.is-open .has-dropdown__toggle::after {
  transform: rotate(-135deg) translateY(2px);
}

.has-dropdown__menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  list-style: none;
  margin: 0; padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    visibility 0s linear var(--dur-fast);
}

.has-dropdown.is-open .has-dropdown__menu,
.has-dropdown:hover .has-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    visibility 0s;
}

.has-dropdown__menu a {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.has-dropdown__menu a:hover {
  background: var(--color-surface-low);
  color: var(--color-teal);
}

/* ----- Header CTA ------------------------------------------ */
.site-header__cta {
  display: none;
}

@media (min-width: 1024px) {
  .primary-nav { display: block; }
  .site-header__cta { display: inline-flex; }
}

/* ----- Mobile toggle --------------------------------------- */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-sm);
  padding: 0 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

/* ----- Mobile drawer --------------------------------------- */
.mobile-nav {
  position: fixed;
  inset: 72px 0 0 0;
  background: var(--color-surface);
  z-index: 90;
  padding: 24px var(--margin-mobile) 32px;
  overflow-y: auto;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition:
    transform var(--dur-base) var(--ease-out),
    opacity var(--dur-base) var(--ease-out),
    visibility 0s linear var(--dur-base);
}

.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition:
    transform var(--dur-base) var(--ease-out),
    opacity var(--dur-base) var(--ease-out),
    visibility 0s;
}

.mobile-nav__list {
  list-style: none;
  margin: 0; padding: 0;
}

.mobile-nav__link,
.mobile-nav__sublink {
  display: block;
  padding: 14px 4px;
  border-bottom: 1px solid var(--color-border-neutral);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
}

.mobile-nav__link.is-active {
  color: var(--color-teal);
}

.mobile-nav__sublink {
  padding-left: 24px;
  font-size: 0.8125rem;
}

.mobile-nav__cta {
  display: block;
  margin-top: 24px;
  text-align: center;
}

@media (min-width: 1024px) {
  .mobile-nav { display: none; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-inverse-bg);
  color: var(--color-inverse-text);
  padding-top: 64px;
}

.site-footer h4 {
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--color-teal-light);
}

.site-footer a {
  color: var(--color-inverse-text);
  opacity: 0.85;
  transition: color var(--dur-fast), opacity var(--dur-fast);
}

.site-footer a:hover {
  color: var(--color-teal-light);
  opacity: 1;
}

.footer-top {
  margin-bottom: 48px;
}

.footer-brand img {
  height: 56px;
  width: auto;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--color-inverse-text);
  opacity: 0.8;
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr 1fr 1.4fr;
  }
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 0.9375rem;
}

.footer-contact p {
  margin: 0 0 6px;
  font-size: 0.9375rem;
  line-height: 1.55;
}

.footer-strip {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: 24px;
  margin-top: 32px;
}

.footer-strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.footer-strip__label {
  color: var(--color-teal-light);
}

.footer-strip__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  list-style: none;
  padding: 0; margin: 0;
}

.footer-strip__links a {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: 20px;
}

.footer-bar__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.65);
}

@media (min-width: 768px) {
  .footer-bar__inner {
    flex-direction: row;
    align-items: center;
  }
}

.footer-bar__inner a {
  display: inline-block;
}

.footer-badge img {
  height: 48px;
  width: auto;
}

/* ============================================================
   Mega menu (Phase 2) — Services & Industries
   ============================================================ */
.has-mega { position: static; }

.has-mega__toggle {
  background: none;
  border: 0;
  padding: 0 14px;
  height: 72px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.has-mega__toggle:hover { color: var(--color-teal); }

.has-mega__toggle.is-active { color: var(--color-teal); }
.has-mega__toggle.is-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--color-teal);
}

.has-mega__caret {
  width: 7px; height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur-fast) var(--ease-out);
}

.has-mega.is-open .has-mega__caret {
  transform: rotate(-135deg) translateY(2px);
}

.mega-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--color-surface);
  border-top: 3px solid var(--color-red);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
  padding: 32px var(--gutter);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0s linear 0.25s;
  z-index: 1000;
}

.has-mega:hover .mega-menu,
.has-mega:focus-within .mega-menu,
.has-mega.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0s;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  max-width: var(--container-max);
  margin: 0 auto;
}

.mega-menu__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out);
}

.mega-menu__item:hover,
.mega-menu__item:focus-visible {
  background: var(--color-surface-low);
  outline: none;
}

.mega-menu__label {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.mega-menu__desc {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.mega-menu__item--urgent .mega-menu__label {
  color: var(--color-red);
}

.mega-menu__item:hover .mega-menu__label {
  color: var(--color-teal);
}

.mega-menu__item--urgent:hover .mega-menu__label {
  color: var(--color-red-dark);
}

.mega-menu__footer {
  max-width: var(--container-max);
  margin: 16px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-neutral);
  text-align: right;
}

.mega-menu__footer a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal);
  text-decoration: none;
}

.mega-menu__footer a:hover { color: var(--color-teal-hover); }

/* Mobile — collapse to vertical accordion below 1024px */
@media (max-width: 1023px) {
  .has-mega { display: none; }   /* mega menus only show in desktop nav */
}