/* ============================================================
   navbar.css — Site header, navigation & mobile drawer
   Trust Creative Agency
   Fluid rem system: 1rem ≈ 1px @ 1600px viewport (see reset.css)
   ============================================================ */

/* ── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  padding: 12rem 24rem;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  z-index: calc(var(--z-cursor) + 1);
  text-decoration: none;
  white-space: nowrap;
  transition: top 0.2s ease;
}
.skip-link:focus-visible { top: 0; }

/* ── Site header ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  height: 90rem;
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1rem solid transparent;
  transition:
    height           0.4s var(--ease-out-quart),
    background       0.5s var(--ease-out-quart),
    backdrop-filter  0.5s var(--ease-out-quart),
    -webkit-backdrop-filter 0.5s var(--ease-out-quart),
    border-color     0.4s var(--ease-out-quart),
    box-shadow       0.5s var(--ease-out-quart);
}

.site-header.is-scrolled {
  height: 70rem;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24rem) saturate(160%);
  -webkit-backdrop-filter: blur(24rem) saturate(160%);
  border-bottom-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 1rem 40rem rgba(0, 0, 0, 0.6);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40rem;
  width: 100%;
}

/* ── Brand / Logo ───────────────────────────────────────────── */
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 12rem;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-brand:focus-visible {
  outline: 2rem solid var(--accent);
  outline-offset: 6rem;
  border-radius: var(--r-sm);
}
.nav-brand__mark {
  width: 34rem;
  height: 34rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.45s var(--ease-out-quart);
}
.nav-brand__mark img,
.nav-brand__mark svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.nav-brand:hover .nav-brand__mark {
  transform: rotate(-6deg) scale(1.1);
}
.nav-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  font-family: var(--font-display);
}
.nav-brand__name {
  font-weight: 900;
  font-size: 18rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: color 0.3s var(--ease-out-quart);
}
.nav-brand:hover .nav-brand__name { color: var(--accent); }
.nav-brand__tagline {
  font-weight: 500;
  font-size: 11rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 3rem;
}

/* ── Desktop navigation ─────────────────────────────────────── */
.site-nav { margin: 0 auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 36rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__link {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 4rem 0;
  transition: color 0.3s var(--ease-out-quart);
  outline: none;
}
.site-nav__link:focus-visible {
  outline: 2rem solid var(--accent);
  outline-offset: 6rem;
  border-radius: 2rem;
}
.site-nav__link:hover   { color: var(--text-primary); }
.site-nav__link.is-active { color: var(--accent); }
.site-nav__line {
  display: block;
  height: 1.5rem;
  width: 100%;
  border-radius: 4rem;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.35s var(--ease-out-quart);
}
.site-nav__link:hover    .site-nav__line { transform: scaleX(0.7); }
.site-nav__link.is-active .site-nav__line { transform: scaleX(1); }

/* ── Header actions ─────────────────────────────────────────── */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 14rem;
  flex-shrink: 0;
}

/* Ensure the CTA pill is perfectly centred with no rogue margins */
.site-header__actions .btn {
  margin: 0;
  margin-top: 50rem;
  align-self: center;
  line-height: 1;
}

/* ── Nav toggle (hamburger) ─────────────────────────────────── */
.nav-toggle {
  display: none;
  position: relative;
  z-index: calc(var(--z-overlay) + 10);
  width: 46rem;
  height: 46rem;
  border: 1.5rem solid rgba(245, 185, 33, 0.3);
  border-radius: var(--r-sm);
  align-items: center;
  justify-content: center;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  outline: none;
  overflow: hidden;
  transition:
    border-color 0.35s var(--ease-out-quart),
    background   0.35s var(--ease-out-quart),
    box-shadow   0.35s var(--ease-out-quart);
}

/* Radial glow pulse on hover */
.nav-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(245, 185, 33, 0.14) 0%, transparent 70%);
  opacity: 0;
  border-radius: inherit;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-out-quart);
}

.nav-toggle:hover {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1rem rgba(245, 185, 33, 0.08),
    0 0 18rem rgba(245, 185, 33, 0.15);
}
.nav-toggle:hover::before { opacity: 1; }

.nav-toggle.is-active {
  border-color: var(--accent);
  background: rgba(245, 185, 33, 0.07);
  box-shadow: 0 0 20rem rgba(245, 185, 33, 0.12);
}
.nav-toggle.is-active::before { opacity: 1; }

.nav-toggle:focus-visible {
  outline: 2rem solid var(--accent);
  outline-offset: 4rem;
}

/* Bar icon */
.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 5rem;
  width: 20rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5rem;
  background: var(--accent);
  border-radius: 2rem;
  transform-origin: center;
  transition:
    transform 0.42s var(--ease-in-out-quart),
    opacity   0.25s var(--ease-out-quart),
    width     0.32s var(--ease-out-quart);
}

.nav-toggle__bars span:nth-child(1) { width: 20rem; }
.nav-toggle__bars span:nth-child(2) { width: 13rem; }
.nav-toggle__bars span:nth-child(3) { width: 20rem; }

/* Equalise bars on hover */
.nav-toggle:hover .nav-toggle__bars span { width: 20rem; }

/* Morph to × when active */
.nav-toggle.is-active .nav-toggle__bars span:nth-child(1) {
  transform: translateY(6.5rem) rotate(45deg);
  width: 20rem;
}
.nav-toggle.is-active .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav-toggle.is-active .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-6.5rem) rotate(-45deg);
  width: 20rem;
}

/* ── Mobile nav drawer ──────────────────────────────────────── */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 110rem var(--gutter) 60rem;

  /* Deep dark background with subtle warm tint */
  background: #060606;

  /* Subtle radial warm glow from lower-left */
  background-image:
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(245, 185, 33, 0.04) 0%, transparent 70%);

  overflow-y: auto;
  overscroll-behavior: contain;

  /* Slide in from right */
  transform: translateX(100%);
  visibility: hidden;
  transition:
    transform  0.65s var(--ease-in-out-quart),
    visibility 0s   linear 0.65s;
}

/* Animated gold left-edge stripe */
.nav-drawer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3rem;
  height: 55%;
  background: linear-gradient(to bottom, var(--accent) 0%, transparent 100%);
  pointer-events: none;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.7s var(--ease-out-expo) 0.25s;
}

/* Top gold hairline */
.nav-drawer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1rem;
  background: linear-gradient(to right, var(--accent) 0%, rgba(245, 185, 33, 0) 50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-expo) 0.2s;
}

.nav-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
  transition:
    transform  0.65s var(--ease-in-out-quart),
    visibility 0s   linear 0s;
}
.nav-drawer.is-open::before {
  transform: scaleY(1);
}
.nav-drawer.is-open::after {
  opacity: 1;
}

/* Decorative "C" watermark */
.nav-drawer__deco {
  position: absolute;
  right: -60rem;
  bottom: -60rem;
  width: 420rem;
  pointer-events: none;
  opacity: 0.05;
  transform: rotate(8deg);
  transition: opacity 0.4s var(--ease-out-quart) 0.4s;
}
.nav-drawer__deco svg {
  width: 100%;
  height: auto;
  fill: var(--accent);
}
.nav-drawer.is-open .nav-drawer__deco { opacity: 0.06; }

/* Nav list */
.nav-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

/* Each nav link row */
.nav-drawer__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 16rem;
  text-decoration: none;
  padding: 16rem 0;
  border-bottom: 1rem solid rgba(255, 255, 255, 0.06);

  /* Entrance animation */
  opacity: 0;
  transform: translateX(48rem);
  transition:
    opacity      0.55s var(--ease-out-expo),
    transform    0.55s var(--ease-out-expo),
    border-color 0.3s  var(--ease-out-quart);
}

.nav-drawer__item:first-child .nav-drawer__link {
  border-top: 1rem solid rgba(255, 255, 255, 0.06);
}

/* Reveal on open with stagger */
.nav-drawer.is-open .nav-drawer__link {
  opacity: 1;
  transform: translateX(0);
}
.nav-drawer__item:nth-child(1) .nav-drawer__link { transition-delay: 0.14s; }
.nav-drawer__item:nth-child(2) .nav-drawer__link { transition-delay: 0.20s; }
.nav-drawer__item:nth-child(3) .nav-drawer__link { transition-delay: 0.26s; }
.nav-drawer__item:nth-child(4) .nav-drawer__link { transition-delay: 0.32s; }
.nav-drawer__item:nth-child(5) .nav-drawer__link { transition-delay: 0.38s; }

/* Gold line that slides in from left on hover */
.nav-drawer__link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleX(0);
  transform-origin: left;
  width: 32rem;
  height: 2rem;
  border-radius: 2rem;
  background: var(--accent);
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-drawer__link:hover {
  border-bottom-color: rgba(245, 185, 33, 0.25);
}
.nav-drawer__link:hover::before  { transform: translateY(-50%) scaleX(1); }
.nav-drawer__link.is-active::before { transform: translateY(-50%) scaleX(1); }
.nav-drawer__link.is-active { border-bottom-color: rgba(245, 185, 33, 0.35); }

/* Number step indicator */
.nav-drawer__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 10rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  opacity: 0.35;
  min-width: 24rem;
  padding-top: 10rem;
  flex-shrink: 0;
  transition:
    opacity   0.3s var(--ease-out-quart),
    transform 0.4s var(--ease-out-expo);
}
.nav-drawer__link:hover .nav-drawer__num    { opacity: 1; transform: translateX(6rem); }
.nav-drawer__link.is-active .nav-drawer__num { opacity: 1; }

/* Large nav label */
.nav-drawer__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36rem, 7.5vw, 58rem);
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1;
  transition:
    color     0.3s var(--ease-out-quart),
    transform 0.4s var(--ease-out-expo);
}
.nav-drawer__link:hover    .nav-drawer__label { color: var(--accent); transform: translateX(8rem); }
.nav-drawer__link.is-active .nav-drawer__label { color: var(--accent); }

/* ── Drawer footer ───────────────────────────────────────────── */
.nav-drawer__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16rem;
  margin-top: 40rem;
  padding-top: 28rem;
  border-top: 1rem solid rgba(255, 255, 255, 0.08);

  opacity: 0;
  transform: translateY(18rem);
  transition:
    opacity   0.5s var(--ease-out-expo) 0.48s,
    transform 0.5s var(--ease-out-expo) 0.48s;
}
.nav-drawer.is-open .nav-drawer__footer {
  opacity: 1;
  transform: translateY(0);
}

.nav-drawer__email {
  font-family: var(--font-display);
  font-size: 12rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s var(--ease-out-quart);
}
.nav-drawer__email:hover { color: var(--accent); }

/* Reset any global .btn margins inside the drawer */
.nav-drawer__footer .btn { margin: 0 !important; }

/* ── Responsive breakpoints ─────────────────────────────────── */

@media (max-width: 1280px) {
  .site-nav__list { gap: 28rem; }
}

@media (max-width: 1024px) {
  /* Header above the toggle */
  .site-header { z-index: calc(var(--z-overlay) + 1); }
  .site-nav     { display: none; }
  .nav-toggle   { display: inline-flex; }
}

@media (max-width: 768px) {
  .site-header           { height: 80rem; }
  .site-header.is-scrolled { height: 64rem; }
  .nav-drawer { padding-top: 100rem; }
}

@media (max-width: 560px) {
  /* Only show the toggle on very small screens, hide the CTA pill */
  .site-header__actions .btn--pill { display: none; }
  .nav-drawer { padding: 90rem 28rem 50rem; }

  .nav-drawer__label {
    font-size: clamp(32rem, 9vw, 46rem);
  }
  .nav-drawer__link {
    padding: 14rem 0;
    gap: 12rem;
  }
  .nav-drawer__footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 16rem;
  }
}

@media (max-width: 380px) {
  .nav-drawer__label { font-size: 32rem; }
}

/* ── Reduced motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .nav-drawer,
  .nav-drawer::before,
  .nav-drawer::after,
  .nav-drawer__link,
  .nav-drawer__link::before,
  .nav-drawer__footer,
  .nav-drawer__label,
  .nav-drawer__num,
  .site-nav__line,
  .nav-toggle,
  .nav-toggle::before,
  .nav-toggle__bars span,
  .nav-brand__mark,
  .skip-link {
    transition: none !important;
    animation:  none !important;
  }

  .nav-drawer__link   { opacity: 1; transform: none; }
  .nav-drawer__footer { opacity: 1; transform: none; }
  .nav-drawer::before { transform: scaleY(1); }
  .nav-drawer::after  { opacity: 1; }
}