/* ==========================================================================
   layout.css — mgbah.dev
   Navigation, page container, section structure
   ========================================================================== */

/* --------------------------------------------------------------------------
   .nav — Fixed outer shell (always full-width, transparent)
   The visual island lives on .nav__inner — it transitions to a pill on scroll.
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 12px var(--space-md);
}

/* --------------------------------------------------------------------------
   .nav__inner — The actual visual container (pill on scroll)
   3-column grid: logo (left) | links (center) | right (CTA + hamburger)
   -------------------------------------------------------------------------- */

.nav__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 52px;
  padding: 0 var(--space-lg);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 0px;
  border: 1px solid transparent;
  transition:
    max-width      0.5s cubic-bezier(0.16, 1, 0.3, 1),
    border-radius  0.5s cubic-bezier(0.16, 1, 0.3, 1),
    background     0.5s cubic-bezier(0.16, 1, 0.3, 1),
    padding        0.5s cubic-bezier(0.16, 1, 0.3, 1),
    border-color   0.5s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow     0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scrolled: inner becomes the floating pill island */
.nav.scrolled .nav__inner {
  max-width: 840px;
  border-radius: 100px;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: 0 var(--space-lg);
}

/* --------------------------------------------------------------------------
   Logo
   -------------------------------------------------------------------------- */

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Host Grotesk', sans-serif;
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  justify-self: start;
  transition: opacity var(--transition-fast);
}

.nav__logo:hover {
  opacity: 0.8;
}

/* Logo image — shown when src resolves; hidden on broken/missing src */
.nav__logo-img {
  height: 26px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

/* Hide broken image icon gracefully */
.nav__logo-img[src=""],
.nav__logo-img:not([src]) {
  display: none;
}

/* Logo text */
.nav__logo-text {
  line-height: 1;
}

/* --------------------------------------------------------------------------
   Desktop links — center column
   -------------------------------------------------------------------------- */

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
  justify-self: center;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  padding: 5px 12px;
  border-radius: 100px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

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

.nav__link.is-active {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.08);
}

/* --------------------------------------------------------------------------
   Right column — CTA button + hamburger
   -------------------------------------------------------------------------- */

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  justify-self: end;
}


.nav__cta {
  display: none !important;          
  padding: 6px 10px !important;
  font-size: 12px !important;
  min-height: 32px !important;
  height: 32px;
  line-height: 1;
  letter-spacing: 0.04em;
  backdrop-filter: none !important;  
  -webkit-backdrop-filter: none !important;
}

/* Hamburger — visible on mobile */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: var(--space-sm);
  cursor: pointer;
  background: none;
  border: none;
  color: var(--color-text);
}

.nav__hamburger-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

/* Hamburger → X when open */
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   .nav-overlay — Mobile full-screen menu
   -------------------------------------------------------------------------- */

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background-color: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition:
    opacity    var(--transition-base),
    visibility var(--transition-base),
    transform  var(--transition-base);
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-overlay__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.nav-overlay__link {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: -0.03em;
  line-height: 1.1;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.nav-overlay__link:hover,
.nav-overlay__link:focus-visible {
  color: var(--color-text);
  transform: translateX(8px);
  outline: none;
}

.nav-overlay__link.is-active {
  color: var(--color-text);
}

.nav-overlay__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--transition-fast);
}

.nav-overlay__close:hover,
.nav-overlay__close:focus-visible {
  color: var(--color-text);
  outline: none;
}

/* CTA inside mobile overlay */
.nav-overlay__cta {
  margin-top: var(--space-xl);
}

/* Prevent body scroll when overlay is open */
body.nav-open {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Desktop breakpoint — show links + CTA, hide hamburger
   -------------------------------------------------------------------------- */

/* Mobile: flex layout so logo sits left and hamburger sits right */
@media (max-width: 767px) {
  .nav__inner {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-md);
    max-width: none;
    margin: 0;
  }

  /* Not scrolled: clear/transparent bar */
  .nav:not(.scrolled) .nav__inner {
    border-radius: 0;
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  /* Scrolled: floating pill — matches desktop island feel */
  .nav.scrolled .nav__inner {
    border-radius: 100px;
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    padding: 0 var(--space-md) 0 var(--space-lg);
  }
}

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

  .nav__cta {
    display: inline-flex !important; /* restore from mobile none !important */
  }

  .nav__hamburger {
    display: none;
  }

  .nav-overlay {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   .page-container — Main content wrapper (inner pages)
   -------------------------------------------------------------------------- */

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px var(--space-md) var(--space-xl);
}

/* --------------------------------------------------------------------------
   .section — Base section structure
   -------------------------------------------------------------------------- */

.section {
  padding: var(--space-xl) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }
}