/* Navigation */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--sp-md);
  height: var(--nav-height);
  padding: 0 var(--gutter);
  transition: background var(--med) var(--ease);
}

html.is-scrolled .nav {
  background: rgba(21, 11, 77, 0.82);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
}

.brand__logo {
  width: auto;
  height: 32px;
}

.nav__links {
  display: flex;
  gap: var(--sp-md);
}

.nav__link {
  position: relative;
  padding: var(--sp-xs) 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
  transition: color var(--fast) var(--ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--honey-300);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--med) var(--ease);
}

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

.nav__link:hover::after,
.nav__link.is-current::after {
  transform: scaleX(1);
}

.nav__tools {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: var(--sp-md);
}

.nav__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
}

.nav__count b {
  color: var(--honey-300);
  font-weight: 600;
}

.nav__progress {
  position: absolute;
  inset: auto 0 -1px 0;
  height: 2px;
  background: var(--honey-300);
  transform: scaleX(var(--progress, 0));
  transform-origin: left;
}

/* Kapitel-Rail */
.rail {
  position: fixed;
  top: 50%;
  right: var(--sp-md);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  transform: translateY(-50%);
}

.rail__dot {
  position: relative;
  display: block;
  width: 12px;
  height: 14px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.rail__dot::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--text-faint);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  transition:
    background var(--med) var(--ease),
    transform var(--med) var(--ease);
}

.rail__dot.is-current::before {
  background: var(--honey-300);
  transform: scale(1.4);
}

.rail__dot:hover::before {
  background: var(--text);
}

.rail__label {
  position: absolute;
  top: 50%;
  right: var(--sp-md);
  padding: 4px var(--sp-xs);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--text);
  background: var(--b-900);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  opacity: 0;
  transform: translate(8px, -50%);
  transition:
    opacity var(--med) var(--ease),
    transform var(--med) var(--ease);
  pointer-events: none;
}

.rail__dot:hover .rail__label,
.rail__dot:focus-visible .rail__label {
  opacity: 1;
  transform: translate(0, -50%);
}

/* Cursor */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  width: 40px;
  height: 46px;
  margin: -23px 0 0 -20px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--med) var(--ease);
  will-change: transform;
}

.cursor svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: var(--honey-300);
  stroke-width: 1.5;
  transform: scale(var(--cursor-scale, 0.5));
  transition: transform var(--med) var(--ease);
}

html.has-cursor .cursor {
  opacity: 1;
}

html.cursor-hover {
  --cursor-scale: 1;
}

html.cursor-hover .cursor svg {
  fill: rgba(255, 211, 107, 0.16);
}

@media (hover: none), (pointer: coarse) {
  .cursor {
    display: none;
  }
}

/* Preloader */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  background: var(--b-950);
  transition:
    transform 1100ms var(--ease-in-out),
    visibility 0s linear 1100ms;
}

.preloader.is-done {
  transform: translateY(-100%);
  visibility: hidden;
}

.preloader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
  transition:
    opacity 500ms var(--ease),
    transform 700ms var(--ease);
}

.preloader.is-done .preloader__inner {
  opacity: 0;
  transform: translateY(-24px);
}

.preloader__hex {
  width: 96px;
  height: 110px;
  overflow: visible;
}

.preloader__fill {
  fill: var(--honey-400);
  transform: translateY(138px);
}

.preloader__outline {
  fill: none;
  stroke: var(--honey-300);
  stroke-width: 2;
  stroke-linejoin: round;
}

.preloader__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-soft);
}

.preloader__count small {
  margin-left: 2px;
}

html.is-loading {
  overflow: hidden;
}

@media (max-width: 1100px) {
  .rail {
    display: none;
  }
}

@media (max-width: 960px) {
  .nav {
    grid-template-columns: 1fr auto;
  }

  .nav__links,
  .nav__count {
    display: none;
  }
}