.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--zi-grain);
  pointer-events: none;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 0.5s steps(1) infinite;
}

@keyframes grain-shift {
  0%   { transform: translate(0,0); }
  10%  { transform: translate(-2%,-3%); }
  20%  { transform: translate(3%,2%); }
  30%  { transform: translate(-1%,4%); }
  40%  { transform: translate(4%,-1%); }
  50%  { transform: translate(-3%,3%); }
  60%  { transform: translate(2%,-4%); }
  70%  { transform: translate(-4%,1%); }
  80%  { transform: translate(1%,-2%); }
  90%  { transform: translate(-2%,4%); }
  100% { transform: translate(3%,-3%); }
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: var(--zi-grain);
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(22,36,20,0.25) 100%);
}

#stars-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--zi-stars);
  pointer-events: none;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--copper), var(--amber), var(--gold-dust));
  z-index: calc(var(--zi-nav) + 1);
  transform-origin: left;
  box-shadow: 0 0 8px var(--amber);
  transition: width 0.1s linear;
}

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--zi-loader);
  background: #f0ede0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2rem;
}

.loader-circle {
  position: absolute;
  width: 1px;
  height: 1px;
  border-radius: 50%;
  background: var(--amber);
  transform-origin: center;
}

.loader-name {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 2vw, 1rem);
  letter-spacing: 0.3em;
  color: var(--amber);
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.loader-name .char {
  opacity: 0;
  display: inline-block;
}

.loader.is-done {
  clip-path: inset(0 50% 0 50%);
  transition: clip-path 0.7s var(--ease-in-out-circ);
  pointer-events: none;
}

.loader.is-hidden {
  display: none;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--zi-nav);
  padding: 1.5rem 0;
  transition: padding 0.4s var(--ease-out-expo), background 0.4s, backdrop-filter 0.4s;
}

.navbar.scrolled {
  padding: 1rem 0;
  background: rgba(240,237,224,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(74,124,63,0.15);
}

.navbar .nav-inner {
  width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-variation-settings: 'opsz' 60;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--ink);
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(26,46,26,0.55);
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--amber);
  transition: width 0.3s var(--ease-out-expo);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid rgba(74,124,63,0.4);
  padding: 0.6rem 1.4rem;
  border-radius: 2px;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.nav-cta:hover {
  background: var(--amber);
  color: #f4f1e8;
  border-color: var(--amber);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  width: 32px;
}

.hamburger span {
  display: block;
  height: 1px;
  background: var(--ink);
  transition: transform 0.35s var(--ease-out-expo), opacity 0.35s;
}

.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--zi-nav) - 1);
  background: rgba(240,237,224,0.98);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 200;
  font-variation-settings: 'opsz' 72;
  font-size: clamp(2rem, 8vw, 3.5rem);
  color: var(--ink);
  transition: color 0.3s;
}

.mobile-menu a:hover {
  color: var(--amber);
}