/* Side gutters + particle canvas + section dots (inspired by crackedontiti.github.io) */

.fx-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  transform: translateZ(0);
}

canvas#particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  display: block;
}

.side-grid {
  position: absolute;
  top: 0;
  bottom: 0;
  width: min(22vw, 12rem);
  pointer-events: none;
  border-color: var(--color-border);
}

.side-grid--left {
  left: 0;
  border-right: 1px solid rgba(36, 36, 36, 0.95);
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: 0 0;
  mask-image: linear-gradient(to right, rgba(0, 0, 0, 0.55), transparent 92%);
  -webkit-mask-image: linear-gradient(to right, rgba(0, 0, 0, 0.55), transparent 92%);
}

.side-grid--right {
  right: 0;
  border-left: 1px solid rgba(36, 36, 36, 0.95);
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: 0 0;
  mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.55), transparent 92%);
  -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.55), transparent 92%);
}

.side-grid::before,
.side-grid::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(77, 172, 255, 0.08);
}

.side-grid--left::before {
  left: 33%;
}

.side-grid--left::after {
  left: 66%;
}

.side-grid--right::before {
  right: 33%;
}

.side-grid--right::after {
  right: 66%;
}

.nav-dots {
  position: fixed;
  right: max(0.5rem, env(safe-area-inset-right, 0px));
  top: 50%;
  transform: translateY(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  pointer-events: auto;
  padding: 0.35rem 0;
}

.nav-dots a {
  position: relative;
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2a2a2a;
  transition: background var(--transition), transform var(--transition);
}

/* Larger tap target without growing the visible dot */
.nav-dots a::before {
  content: "";
  position: absolute;
  inset: -10px -12px;
}

.nav-dots a:hover {
  background: #888;
}

.nav-dots a.is-active {
  transform: scale(1.4);
  background: var(--color-accent);
}

.nav-dots a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Stacking: fx/particles(0) < main(1) < dots(200) < backdrop(900) < menu(950) < header(1000) */
body > .site-main {
  position: relative;
  z-index: 1;
}

body > .menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 900;
}

body > .mobile-menu {
  position: fixed;
  z-index: 950;
  isolation: isolate;
  background: #0f0f0f;
}

body > .site-header {
  position: fixed;
  z-index: 1000;
}

.site-main {
  padding-right: 1.75rem;
}

@media (max-width: 900px) {
  .side-grid {
    display: none;
  }

  .nav-dots {
    right: max(0.35rem, env(safe-area-inset-right, 0px));
    gap: 0.45rem;
    z-index: 210;
  }

  .nav-dots a {
    width: 5px;
    height: 5px;
  }

  .site-main {
    padding-right: 1.5rem;
    padding-left: 0;
  }
}

@media (max-width: 480px) {
  canvas#particles {
    opacity: 0.55;
  }
}

@media (prefers-reduced-motion: reduce) {
  canvas#particles {
    display: none;
  }
}