/* ==========================================================================
   SEGAL — Components
   ========================================================================== */

/* ---- Route Tag (signature element) ----
   Mono-caps, Signage-Blue-bordered label used as section eyebrow,
   service numbers, and project tags — a typographic citation of the
   actual highway signage / geotagged billboard photography. */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-signage-blue);
  padding-block: var(--space-3xs);
  padding-inline: var(--space-xs);
  border: var(--border-width) solid var(--color-signage-blue);
  line-height: 1.4;
}

.tag--on-dark {
  color: #6E93FF;
  border-color: #6E93FF;
}

.tag--static {
  border-color: var(--color-border-light);
  color: var(--color-text-muted);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  padding-block: var(--space-sm);
  padding-inline: var(--space-lg);
  border: var(--border-width-md) solid transparent;
  transition: background-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: #D65A0F;
  border-color: #D65A0F;
}

.btn--outline {
  background-color: transparent;
  border-color: currentColor;
  color: inherit;
}

.btn--outline:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.btn--outline-dark {
  border-color: var(--color-navy);
  color: var(--color-navy);
}

.btn--outline-dark:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
}

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

.nav {
  position: fixed;
  inset-inline: 0;
  inset-block-start: 0;
  z-index: var(--z-nav);
  block-size: var(--nav-height);
  display: flex;
  align-items: center;
  background-color: rgba(243, 241, 236, 0.92);
  backdrop-filter: blur(6px);
  border-block-end: var(--border-width) solid transparent;
  transition: block-size var(--duration-fast) var(--ease-standard),
              background-color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}

.nav.is-scrolled {
  block-size: var(--nav-height-scrolled);
  background-color: rgba(15, 30, 77, 0.97);
  border-block-end-color: var(--color-signage-blue);
  color: var(--color-white);
}

.nav__inner {
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  inline-size: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: block;
  block-size: 34px;
  inline-size: auto;
  transition: block-size var(--duration-fast) var(--ease-standard);
}

.nav.is-scrolled .nav__logo {
  block-size: 28px;
}

.nav__list {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-steel);
  position: relative;
  padding-block: var(--space-2xs);
}

.nav.is-scrolled .nav__link {
  color: var(--color-text-on-dark);
}

.nav__link::after {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  inset-block-end: 0;
  inline-size: 0;
  block-size: 2px;
  background-color: var(--color-signage-blue);
  transition: inline-size var(--duration-base) var(--ease-out);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  inline-size: 100%;
}

.nav.is-scrolled .nav__link::after {
  background-color: var(--color-orange);
}

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

.nav__cta {
  display: none;
}

/* ---- Mobile nav toggle ---- */

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  inline-size: 32px;
  block-size: 32px;
  z-index: var(--z-mobile-nav);
}

.nav__toggle span {
  display: block;
  inline-size: 100%;
  block-size: 2px;
  background-color: currentColor;
  transition: transform var(--duration-fast) var(--ease-standard),
              opacity var(--duration-fast) var(--ease-standard),
              inline-size var(--duration-fast) var(--ease-standard);
}

.nav__toggle span:nth-child(2) {
  inline-size: 70%;
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  inline-size: 100%;
}

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

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  inline-size: 100%;
}

.nav__mobile {
  position: fixed;
  inset-block-start: 0;
  inset-inline-end: 0;
  inline-size: min(84vw, 360px);
  block-size: 100vh;
  background-color: var(--color-navy);
  z-index: calc(var(--z-mobile-nav) - 1);
  padding-block-start: calc(var(--nav-height) + var(--space-lg));
  padding-inline: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-out);
}

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

.nav__mobile-link {
  font-family: var(--font-display);
  font-size: var(--fs-display-sm);
  text-transform: uppercase;
  color: var(--color-white);
  border-block-end: var(--border-width) solid var(--color-border-on-dark);
  padding-block: var(--space-sm);
}

@media (min-width: 900px) {
  .nav__list {
    display: flex;
  }

  .nav__cta {
    display: inline-flex;
  }

  .nav__toggle {
    display: none;
  }

  .nav__mobile {
    display: none;
  }
}

/* ---- Photo tile (billboard grid) ---- */

.photo-tile {
  position: relative;
  overflow: hidden;
  border: var(--border-width) solid var(--color-border-light);
}

.photo-tile img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.photo-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--color-signage-blue);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-standard);
  pointer-events: none;
}

.photo-tile:hover img,
.photo-tile:focus-within img {
  transform: scale(1.04);
}

.photo-tile:hover::after,
.photo-tile:focus-within::after {
  opacity: 1;
}

.photo-tile__caption {
  position: absolute;
  inset-inline-start: 0;
  inset-block-end: 0;
  inline-size: 100%;
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(to top, rgba(10, 18, 48, 0.82), transparent);
  color: var(--color-white);
}

.photo-tile__caption .tag {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
  margin-block-end: var(--space-2xs);
}

/* ---- Spec row (contact detail rows) ---- */

.spec-row {
  border-inline-start: 2px solid var(--color-signage-blue);
  padding-inline-start: var(--space-md);
  padding-block: var(--space-2xs);
}

.spec-row__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-block-end: var(--space-3xs);
}

.spec-row__value {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  font-weight: 500;
  color: var(--color-steel);
}

.spec-row__value a:hover {
  color: var(--color-signage-blue);
}