/* ============================================================
   CapacityPod — nav-footer.css
   Navigation bar and footer styles
   Spec v1 · Build 2026-04-08
   ============================================================ */

/* ----------------------------------------------------------
   Navigation
   ---------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: transparent;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* White mode (non-hero pages or after scroll) */
.nav--white,
.nav--scrolled {
  background-color: var(--color-bg-base);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}

.nav__inner {
  max-width: var(--max-content-width);
  margin-inline: auto;
  padding-inline: 80px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

@media (max-width: 1023px) {
  .nav__inner {
    padding-inline: 40px;
  }
}

@media (max-width: 767px) {
  .nav__inner {
    padding-inline: 20px;
  }
}

/* Logo */
.nav__logo {
  flex-shrink: 0;
  width: 160px;
  line-height: 0;
}

.nav__logo img,
.nav__logo svg {
  width: 160px;
  height: auto;
}

/* Desktop links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__link {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

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

.nav__link--active {
  font-weight: 500;
  color: var(--color-brand-primary);
}

/* On transparent hero nav, links white */
.nav:not(.nav--scrolled):not(.nav--white) .nav__link {
  color: rgba(255,255,255,0.90);
}

.nav:not(.nav--scrolled):not(.nav--white) .nav__link:hover {
  color: var(--color-white);
}

/* Invert positive logo to white when nav is transparent on a dark hero */
.nav:not(.nav--scrolled):not(.nav--white) .nav__logo img {
  filter: brightness(0) invert(1);
}

/* Services toggle button */
.nav__services-toggle {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav:not(.nav--scrolled):not(.nav--white) .nav__services-toggle {
  color: rgba(255,255,255,0.90);
}

.nav__services-toggle:hover {
  color: var(--color-brand-primary);
}

.nav:not(.nav--scrolled):not(.nav--white) .nav__services-toggle:hover {
  color: var(--color-white);
}

.nav__services-toggle-icon {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-normal);
}

.nav__services-toggle[aria-expanded="true"] .nav__services-toggle-icon {
  transform: rotate(180deg);
}

/* Services dropdown */
.nav__services-dropdown {
  position: absolute;
  top: calc(var(--nav-height) - 4px);
  background-color: var(--color-bg-base);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  width: 200px;
  padding: 8px 0;
  display: none;
  z-index: 200;
}

.nav__services-dropdown.is-open {
  display: block;
  animation: dropdownFadeIn 150ms ease-in forwards;
}

@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav__dropdown-link {
  display: block;
  padding: 12px 20px;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.nav__dropdown-link:hover {
  background-color: var(--color-bg-tint);
}

/* Services wrapper for positioning */
.nav__services-wrapper {
  position: relative;
}

/* CTA button in nav */
.nav__cta {
  margin-left: var(--space-4);
}

/* Hamburger button */
.nav__menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: background-color var(--transition-fast);
}

.nav:not(.nav--scrolled):not(.nav--white) .nav__menu-btn span {
  background-color: var(--color-white);
}

/* Mobile menu overlay */
.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(29,29,27,0.5);
  z-index: 150;
  opacity: 0;
  transition: opacity 200ms ease;
}

.nav__overlay.is-visible {
  display: block;
  opacity: 1;
}

/* Mobile menu panel */
.nav__mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background-color: var(--color-brand-primary-deep);
  z-index: 200;
  padding: 32px 32px 48px;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 250ms ease;
}

.nav__mobile-menu.is-open {
  transform: translateX(0);
}

.nav__mobile-close {
  align-self: flex-end;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-white);
  font-size: 1.5rem;
  line-height: 1;
  padding: 8px;
  margin-bottom: 32px;
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: 48px;
  flex: 1;
}

.nav__mobile-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;   /* 24px */
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.nav__mobile-link:hover {
  opacity: 0.80;
}

.nav__mobile-cta {
  margin-top: 48px;
  width: 100%;
  height: 48px;
}

@media (max-width: 767px) {
  .nav__links,
  .nav__cta {
    display: none;
  }
  .nav__menu-btn {
    display: flex;
  }
}

@media (min-width: 768px) {
  .nav__mobile-menu,
  .nav__overlay {
    display: none !important;
  }
}

/* ----------------------------------------------------------
   Footer
   ---------------------------------------------------------- */

.footer {
  background-color: var(--color-brand-primary-deep);
  color: var(--color-white);
  padding-top: var(--space-10);
  padding-bottom: var(--space-6);
}

.footer__inner {
  max-width: var(--max-content-width);
  margin-inline: auto;
  padding-inline: 80px;
}

@media (max-width: 1023px) {
  .footer__inner {
    padding-inline: 40px;
  }
}

@media (max-width: 767px) {
  .footer__inner {
    padding-inline: 20px;
  }
}

.footer__cols {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

@media (max-width: 767px) {
  .footer__cols {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.footer__logo {
  width: 160px;
  margin-bottom: 16px;
}

.footer__logo img,
.footer__logo svg {
  width: 160px;
  height: auto;
}

.footer__tagline {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.70);
  line-height: 1.5;
  margin-top: 12px;
}

.footer__address {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
  margin-top: 16px;
}

.footer__nav-title,
.footer__contact-title {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 16px;
}

.footer__nav-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__nav-link {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover {
  color: var(--color-white);
}

.footer__contact-email {
  display: block;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  margin-bottom: 16px;
}

.footer__contact-email:hover {
  color: var(--color-white);
}

.footer__linkedin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.85);
  font-size: 0.9375rem;
  text-decoration: none;
  margin-bottom: 24px;
  transition: color var(--transition-fast);
}

.footer__linkedin:hover {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

.footer__copyright,
.footer__privacy {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
}

.footer__privacy a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
}

.footer__privacy a:hover {
  color: rgba(255,255,255,0.85);
  text-decoration: underline;
}