/* ==========================================================================
   Trevor Earley Photography — Shared Components
   Site header/nav, footer, mobile menu
   ========================================================================== */

/* ---- Header / Nav ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, rgba(11, 12, 13, 0.85), rgba(11, 12, 13, 0));
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.site-header.is-scrolled {
  background: rgba(11, 12, 13, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-logo span {
  color: var(--color-text-mute);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.main-nav a {
  position: relative;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 0.1rem;
  color: var(--color-text-dim);
  transition: color var(--dur) var(--ease);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a[aria-current="page"] {
  color: var(--color-text);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  z-index: 1000;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

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

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    inset: 0;
    height: 100dvh;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--space-2) var(--container-pad);
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
  }

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

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .main-nav a {
    font-size: 1.75rem;
    font-family: var(--font-display);
    letter-spacing: 0.02em;
  }

}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5) var(--space-3);
  background: var(--color-bg-alt);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
}

.footer-brand .site-logo {
  display: inline-block;
  margin-bottom: var(--space-2);
}

.footer-brand p {
  color: var(--color-text-mute);
  max-width: 34ch;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  margin-bottom: var(--space-2);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--color-text-dim);
  font-size: 0.95rem;
  transition: color var(--dur) var(--ease);
}

.footer-col a:hover,
.footer-col a:focus-visible {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-mute);
}

@media (max-width: 700px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}