/* ================================
   NAV
   ================================ */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0.75rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(2,32,244,0.2);
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 54px;
  width: auto;
  display: block;
  transition: opacity 0.3s;
}
.nav-logo:hover .nav-logo-img { opacity: 0.82; }

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-mid);
  text-decoration: none;
  transition: color 0.3s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--copper); }

.nav-cta {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.6rem 1.5rem;
  border: 1px solid var(--copper);
  color: var(--copper);
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
  background: transparent;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--copper);
  color: var(--off-white);
}

/* ---- Hamburger ---- */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 102;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--off-white);
  transition: transform 0.35s ease, opacity 0.25s ease;
  transform-origin: center;
}
/* Animated X state */
.nav-hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================================
   MOBILE SIDEBAR  (only active below 900px)
   Desktop styles above are completely untouched.
   ============================================================ */

/* Backdrop overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0);
  z-index: 200;
  transition: background 0.35s ease;
  pointer-events: none;
}
.sidebar-overlay.open {
  display: block;
  background: rgba(0,0,0,0.65);
  pointer-events: all;
  backdrop-filter: blur(3px);
}

/* Sidebar panel */
.nav-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: min(80vw, 320px);
  height: 100dvh;
  background: #0d0d0d;
  border-left: 1px solid rgba(2,32,244,0.18);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.nav-sidebar.open {
  transform: translateX(0);
}

/* Sidebar header */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem 1.1rem 1.6rem;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.sidebar-logo-img {
  height: 36px;
  width: auto;
  filter: invert(1) sepia(1) saturate(0) brightness(1.5);
  opacity: 0.9;
}

.sidebar-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
  background: rgba(255,255,255,0.04);
  color: var(--stone-mid);
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
  flex-shrink: 0;
}
.sidebar-close:hover {
  border-color: var(--copper);
  color: var(--copper);
  background: rgba(2,32,244,0.08);
}

/* Divider */
.sidebar-divider {
  height: 1px;
  background: rgba(2,32,244,0.15);
  margin: 0 1.6rem;
}

/* Nav links */
.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0.5rem 0;
  overflow-y: auto;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.6rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  position: relative;
  transition: background 0.2s;
}
.sidebar-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--copper);
  transform: scaleY(0);
  transition: transform 0.25s ease;
}
.sidebar-link:hover::before,
.sidebar-link.active::before {
  transform: scaleY(1);
}
.sidebar-link:hover,
.sidebar-link.active {
  background: rgba(2,32,244,0.06);
}

.sidebar-link-num {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--copper);
  opacity: 0.7;
  font-weight: 400;
  min-width: 22px;
}
.sidebar-link-text {
  flex: 1;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--off-white);
  transition: color 0.2s;
}
.sidebar-link:hover .sidebar-link-text,
.sidebar-link.active .sidebar-link-text {
  color: var(--copper);
}
.sidebar-link-arrow {
  color: var(--stone-mid);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s, transform 0.2s, color 0.2s;
}
.sidebar-link:hover .sidebar-link-arrow,
.sidebar-link.active .sidebar-link-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--copper);
}

/* Sidebar footer */
.sidebar-footer {
  padding: 1.5rem 1.6rem 2rem;
  border-top: 1px solid rgba(2,32,244,0.15);
}
.sidebar-cta {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.85rem 1.5rem;
  background: var(--copper);
  color: var(--off-white);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 0.25s, transform 0.2s;
  margin-bottom: 1.2rem;
}
.sidebar-cta:hover {
  background: var(--copper-light);
  transform: translateY(-1px);
}
.sidebar-tagline {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  line-height: 1.7;
  text-align: center;
}

/* ---- Show hamburger on mobile, hide desktop links ---- */
@media (max-width: 900px) {
  nav { padding: 0.75rem 1.5rem; }
  .nav-logo-img { height: 42px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
}

/* ---- Hide sidebar completely on desktop ---- */
@media (min-width: 901px) {
  .nav-sidebar,
  .sidebar-overlay { display: none !important; }
}