/* ---------- RESET ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  min-height: 100%;
  overflow-x: hidden;
}

:root {
  --page-padding: 1rem;
  --grid-gap: 0.35rem;
  --nav-size: 1.4rem;
  --detail-col-w: 100%;
  --card-media-inset: var(--page-padding);
}

@media (min-width: 1440px) {
  :root {
    --nav-size: 2.35rem;
  }
}

/* ---------- BASE ---------- */
body {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: #000;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background 0.6s ease, color 0.6s ease;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
}

body.overview,
body.detail-view {
  background: #000;
  color: #fff;
}

body.inverted,
body.overview.inverted,
body.detail-view.inverted {
  background: #fff;
  color: #000;
}

/* ---------- HEADER ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1200;
  display: grid;
  grid-template-columns: max-content 1fr max-content 1fr max-content;
  align-items: start;
  height: 50px;
  padding: 0.78rem var(--page-padding);
  border-bottom: 1px solid #fff; /* Linie hinzugefügt */
  background: #000; /* Standardfarbe schwarz */
  transition:
    background 0.6s ease,
    backdrop-filter 0.6s ease;
}

.site-header .brand {
  grid-column: 1;
  justify-self: start;
  display: flex;
  align-items: flex-start;
  z-index: 2;
}

.site-nav {
  grid-column: 5;
  justify-self: end;
  display: flex;
  align-items: flex-start;
  z-index: 2;
}

.site-header .brand a,
.site-nav .nav-link {
  font-size: var(--nav-size);
  text-decoration: none;
  color: inherit;
  font-weight: 400;
  line-height: 0.85;
  display: inline-flex;
  align-items: flex-start;
  mix-blend-mode: difference;
  letter-spacing: -0.025em;
}

#visualBtn {
  color: #aaa;
  font-weight: 400;
}

body.inverted .site-header {
  background: #fff; /* Hintergrund für invertierte Navigation */
}

body.inverted .site-header .brand a,
body.inverted .site-nav .nav-link {
  color: #000; /* Textfarbe für invertierte Navigation */
}

body.inverted .site-header::after {
  background: #000; /* Linie für invertierte Navigation */
}

/* ---------- INVERT TOGGLE ---------- */
.invert-toggle {
  grid-column: 3;
  justify-self: center;
  align-self: start;
  position: relative;
  width: 0.6em;
  height: 0.6em;
  margin-top: 0.5em;
  font-size: var(--nav-size);
  line-height: 1;
  border-radius: 50%;
  border: 1px solid currentColor;
  border-color: transparent;
  background: transparent;
  padding: 0;
  cursor: pointer;
  z-index: 1;
  transition: transform 200ms ease, border-color 200ms ease, opacity 200ms ease;
}

.invert-toggle::before,
.invert-toggle::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
}

.invert-toggle:hover {
  transform: scale(1);
}

body:not(.overview):not(.detail-view) .invert-toggle {
  opacity: 0;
  pointer-events: none;
}

body.overview .invert-toggle,
body.detail-view .invert-toggle {
  color: #fff;
  background: transparent;
}

body.overview .invert-toggle::before,
body.detail-view .invert-toggle::before {
  inset: 0;
  background: currentColor;
}

body.overview .invert-toggle::after,
body.detail-view .invert-toggle::after {
  inset: 0;
  background: #000;
  transform: translateX(0.18em);
}

body.overview.inverted .invert-toggle,
body.detail-view.inverted .invert-toggle,
body.inverted .invert-toggle {
  color: #000;
  border-color: currentColor;
  background: transparent;
}

body.overview.inverted .invert-toggle::before,
body.overview.inverted .invert-toggle::after,
body.detail-view.inverted .invert-toggle::before,
body.detail-view.inverted .invert-toggle::after,
body.inverted .invert-toggle::before,
body.inverted .invert-toggle::after {
  display: none;
}

/* ---------- ABOUT TOGGLE ---------- */
#aboutme {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1300;
  transform: translateY(-100%);
  padding: 1rem var(--page-padding);
  transition: transform 0.7s cubic-bezier(.65,.05,.36,1);
  background: rgba(128, 128, 128, 0.45);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
}

#aboutme.aboutmeopen {
  transform: translateY(0);
}

#aboutme h3 {
  font-size: var(--nav-size);
  font-weight: 400;
  line-height: 1.1;
  color: #fff;
  letter-spacing: -0.01em;
}

#aboutme a {
  color: #fff;
  text-decoration: none;
  font-weight: 400;
}

body.inverted #aboutme h3,
body.inverted #aboutme a,
body.overview.inverted #aboutme h3,
body.overview.inverted #aboutme a,
body.detail-view.inverted #aboutme h3,
body.detail-view.inverted #aboutme a {
  color: #000;
}

/* ---------- LANDING ---------- */
#landingSlideshow {
  position: fixed;
  top: 50px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 500;
  background: #000;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.visual-inner {
  position: relative;
  width: 100%;
  height: 100%;
  background: #000;
}

.visual-inner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  clip-path: inset(50% 0 50% 0);
  opacity: 1;
  z-index: 0;
  will-change: clip-path;
  pointer-events: none;
}

/* ---------- OVERVIEW GRID ---------- */
#projectOverview {
  display: none;
  position: relative;
  width: 100%;
  padding-top: calc(50px + var(--grid-gap));
  padding-bottom: 1rem;
}

body.overview #projectOverview {
  display: block;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--grid-gap);
  padding: 0 var(--page-padding);
}

@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: none;
  display: block;
  width: 100%;
  cursor: pointer;
}

.project-card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #000;
  cursor: default;
}

body.inverted .project-card-media,
body.overview.inverted .project-card-media,
body.detail-view.inverted .project-card-media {
  background: #efefef;
}

.project-card-media img {
  position: absolute;
  inset: var(--card-media-inset);
  width: calc(100% - (var(--card-media-inset) * 2));
  height: calc(100% - (var(--card-media-inset) * 2));
  object-fit: contain;
  object-position: center;
  opacity: 0;
  transition: opacity 300ms ease;
  pointer-events: none;
}

.project-card-media img.is-visible {
  opacity: 1;
}

/* ---------- CUSTOM CHEVRON CURSOR ---------- */
.project-card-media::before,
.project-card-media::after {
  content: "";
  position: absolute;
  left: var(--cursor-x, 50%);
  top: var(--cursor-y, 50%);
  width: 1.25rem;
  height: 1.25rem;
  opacity: 0;
  pointer-events: none;
  z-index: 4;
}

.project-card-media::before {
  transform: translate(-50%, -50%) rotate(-45deg);
  border-left: 1px solid #fff;
  border-top: 1px solid #fff;
}

.project-card-media::after {
  transform: translate(-50%, -50%) rotate(45deg);
  border-right: 1px solid #fff;
  border-top: 1px solid #fff;
}

.project-card-media.nav-left::before {
  opacity: 1;
}

.project-card-media.nav-right::after {
  opacity: 1;
}

body.inverted .project-card-media::before,
body.inverted .project-card-media::after,
body.overview.inverted .project-card-media::before,
body.overview.inverted .project-card-media::after,
body.detail-view.inverted .project-card-media::before,
body.detail-view.inverted .project-card-media::after {
  border-color: #000;
}

/* ---------- FOOTER ---------- */
.site-footer {
  width: 100%;
  text-align: left;
  padding: 1rem var(--page-padding);
  margin-top: auto;
}

.site-footer small {
  font-size: 0.8rem;
  color: #aaa;
}

body.inverted .site-footer small,
body.overview.inverted .site-footer small,
body.detail-view.inverted .site-footer small {
  color: #666;
}

@media (max-width: 768px) {
  :root {
    --detail-col-w: 100%;
  }

  .site-header {
    height: 75px;
  }

  #landingSlideshow {
    top: 75px;
  }

  #projectOverview {
    padding-top: calc(75px + var(--grid-gap));
  }

  #projectDetail {
    padding-top: calc(75px + var(--grid-gap));
  }

  .detail-info {
    width: 100%;
    font-size: 0.88rem;
  }

  .project-card-media::before,
  .project-card-media::after {
    width: 1rem;
    height: 1rem;
  }
}