/* ── Portfolio Hero ── */
.portfolio-hero {
  padding: 18rem 3rem 6rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--mid);
}

.portfolio-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: clamp(4rem, 12vw, 11rem);
  line-height: 0.9;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.portfolio-subtitle {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Nav active state ── */
.nav-active {
  color: var(--black) !important;
}

.nav-active::after {
  width: 100% !important;
}

/* ── Projects ── */
.projects-section {
  padding: 2rem 0;
}

.project-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
  text-decoration: none;
  border-bottom: 1px solid var(--mid);
  overflow: hidden;
  transition: background 0.5s ease;
}

.project-row:hover {
  background: var(--off-black);
}

.project-row--reverse {
  direction: rtl;
}

.project-row--reverse > * {
  direction: ltr;
}

/* Thumbnail */
.project-thumb {
  position: relative;
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s ease, filter 0.8s ease;
  filter: saturate(0.7) brightness(0.85);
}

.project-row:hover .project-thumb img {
  transform: scale(1.04);
  filter: saturate(0.9) brightness(0.95);
}

.project-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(226,98,44,0.05), transparent);
  pointer-events: none;
}

/* Info */
.project-info {
  padding: 4rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
}

.project-num {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  color: var(--gold-dim);
}

.project-tag {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.project-name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.project-name em {
  font-style: italic;
  color: var(--off-white);
}

.project-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.9;
  max-width: 360px;
}

.project-arrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--light);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: gap 0.3s ease, color 0.3s ease;
}

.project-row:hover .project-arrow {
  gap: 1.5rem;
  color: var(--gold);
}

.arrow-line {
  width: 40px;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

.project-row:hover .arrow-line {
  width: 60px;
}

/* ── Detail Page ── */
.detail-hero {
  height: 80vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0 3rem 5rem;
}

.detail-hero-bg {
  position: absolute;
  inset: 0;
}

.detail-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) brightness(0.92);
}

.detail-hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,17,13,0.85) 0%, rgba(20,17,13,0.25) 55%, transparent 100%);
}

.detail-hero-content {
  position: relative;
  z-index: 2;
}

.detail-tag {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.detail-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.95;
  color: #fff;
}

.detail-title em {
  font-style: normal;
  font-weight: 700;
  color: var(--accent);
}

/* Detail Body */
.detail-body {
  padding: 6rem 3rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 6rem;
  border-bottom: 1px solid var(--mid);
}

.detail-meta {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.meta-block p:first-child {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: 0.5rem;
}

.meta-block p:last-child {
  font-size: 0.9rem;
  color: var(--light);
}

.detail-text h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: var(--black);
  margin-bottom: 2rem;
  line-height: 1.2;
}

.detail-text p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 2;
  margin-bottom: 1.5rem;
  max-width: 560px;
}

/* Video Player */
.detail-video {
  padding: 0 3rem 6rem;
}

.video-quality-hint {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  text-align: center;
  margin-bottom: 2.5rem;
  margin-top: 3rem;
  padding: 0 2rem;
  color: var(--accent);
}

.video-quality-hint em {
  font-style: normal;
  color: var(--black);
}

@keyframes candlebeat {
  0%, 100% { opacity: 0.85; }
  50%      { opacity: 1; }
}

/* ── Custom YouTube Facade ── */
.yt-facade {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  overflow: hidden;
  background: #000;
}

.yt-facade img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(0.94) saturate(0.98);
  transition: filter 0.5s ease, transform 0.6s ease;
}

.yt-facade:hover img {
  filter: brightness(0.85) saturate(0.95);
  transform: scale(1.03);
}

/* Soft vignette for play-button contrast */
.yt-facade::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(20,17,13,0.28) 100%);
  pointer-events: none;
  z-index: 1;
}

/* Play button */
.yt-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  transition: transform 0.3s ease;
}

.yt-facade:hover .yt-play {
  transform: translate(-50%, -50%) scale(1.08);
}

.yt-play-ring {
  width: 72px;
  height: 72px;
  border: 1px solid rgba(226, 98, 44, 0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s ease, background 0.3s ease;
  backdrop-filter: blur(4px);
  background: rgba(20,17,13,0.3);
}

.yt-facade:hover .yt-play-ring {
  border-color: var(--gold);
  background: rgba(226, 98, 44, 0.18);
}

.yt-play-triangle {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--gold);
  margin-left: 4px;
}

.yt-play-label {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 217, 196, 0.9);
  font-family: var(--font-ui);
}

/* Active state — hide facade, show iframe */
.yt-wrap.active .yt-facade {
  display: none;
}

.yt-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: none;
}

.yt-wrap.active iframe {
  display: block;
}

/* Portrait (9:16) — zwei nebeneinander zentriert */
.detail-video.portrait {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 4rem 3rem 6rem;
}

.detail-video.portrait .yt-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 340px;
  flex-shrink: 0;
}

.detail-video.portrait .yt-wrap {
  width: 340px;
  height: 604px; /* exakt 9:16 bei 340px Breite */
  position: relative;
  background: #000;
  border: 1px solid var(--mid);
  overflow: hidden;
}

/* Landscape (16:9) */
.yt-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  position: relative;
  background: #000;
  border: 1px solid var(--mid);
  overflow: hidden;
}

.yt-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.yt-label {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.75rem;
  text-align: center;
}

@media (max-width: 900px) {
  .detail-video.portrait {
    flex-direction: column;
    align-items: center;
  }
  .detail-video.portrait .yt-item,
  .detail-video.portrait .yt-wrap {
    width: 100%;
    max-width: 340px;
    height: auto;
    aspect-ratio: 9/16;
  }
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 3rem 3rem 0;
  transition: color 0.3s ease, gap 0.3s ease;
}

.back-link:hover {
  color: var(--gold);
  gap: 1.1rem;
}

.back-line {
  width: 30px;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

.back-link:hover .back-line {
  width: 20px;
}

/* ── Project Navigation ── */
.project-nav {
  display: flex;
  align-items: stretch;
  border-top: 1px solid var(--mid);
}

.project-nav-btn {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  text-decoration: none;
  padding: 2.5rem 3rem;
  flex: 1;
  transition: background 0.4s ease;
  position: relative;
}

.project-nav-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.5s ease;
}

.project-nav-btn:hover::after {
  width: 100%;
}

.project-nav-btn:hover {
  background: var(--off-black);
}

.project-nav-btn.next {
  justify-content: flex-end;
  border-left: 1px solid var(--mid);
}

.project-nav-label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.project-nav-btn.next .project-nav-label {
  text-align: right;
}

.nav-direction {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold-dim);
}

.nav-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--black);
  line-height: 1;
  transition: color 0.3s ease;
}

.project-nav-btn:hover .nav-title {
  color: var(--gold);
}

.nav-arrow {
  font-size: 1.2rem;
  color: var(--gold-dim);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}

.project-nav-btn.prev:hover .nav-arrow {
  transform: translateX(-5px);
  color: var(--gold);
}

.project-nav-btn.next:hover .nav-arrow {
  transform: translateX(5px);
  color: var(--gold);
}

@media (max-width: 900px) {
  .project-nav { flex-direction: column; }
  .project-nav-btn { padding: 2rem 1.5rem; }
  .project-nav-btn.next { border-left: none; border-top: 1px solid var(--mid); }
  .project-row { grid-template-columns: 1fr; min-height: auto; }
  .project-row--reverse { direction: ltr; }
  .project-thumb { aspect-ratio: 16/9; }
  .project-info { padding: 2.5rem 1.5rem; }
  .detail-hero { height: 50vh; padding: 0 1.5rem 3rem; }
  .detail-body {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
  }
  .detail-text { order: 2; }
  .detail-meta { order: 3; }
  .video-quality-hint { font-size: 1.3rem; margin-top: 1.5rem; order: 1; }
  .detail-video { padding: 0 1.5rem 3rem; order: 1; }
  .back-link { padding: 2rem 1.5rem 0; }
  .detail-video.portrait { flex-direction: column; align-items: center; }
  .detail-video.portrait .yt-item,
  .detail-video.portrait .yt-wrap { width: 100%; max-width: 320px; height: auto; aspect-ratio: 9/16; }
  .video-quality-hint { padding: 0 1.5rem; }
}