* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Roboto", sans-serif;
  background: #f4f4f2;
  color: #111;
}

/* ================= HEADER ================= */

.site-header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  padding: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
}

.site-header a,
.site-header .nav-item {
  pointer-events: auto;
}

.site-header--light .htitle,
.site-header--light .hero-subtitle,
.site-header--light .nav-item {
  color: #fff;
  mix-blend-mode: difference;
}

.hero-title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.htitle {
  display: block;
  margin: 0;
  font-weight: 700;
  font-size: 128px;
  line-height: 0.8;
  text-decoration: none;
}

.hero-subtitle {
  margin: 12px 0 0 0;
  font-family: "Jost", sans-serif;
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-item {
  font-family: "Jost", sans-serif;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.nav-item.active {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* =========================================================
   INDEX PAGE (photo.html)
   ========================================================= */

.projects-index-body {
  background: #f4f4f2;
}

.projects-index-body .projects-index-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 10px;
  background: #f4f4f2;
}

.projects-index-body .project-card {
  position: relative;
  display: block;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  background: #111;
}

.projects-index-body .project-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.projects-index-body .project-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: transform 0.55s ease;
}

.projects-index-body .project-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  text-align: center;
  padding: 28px 22px;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.18),
    rgba(0, 0, 0, 0.03) 45%,
    rgba(0, 0, 0, 0.01)
  );
  transition: background 0.35s ease;
  pointer-events: none;
}

.projects-index-body .project-overlay-inner {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  max-width: 90%;
}

.projects-index-body .project-overlay-inner h2 {
  margin: 0 0 8px 0;
  font-family: "Roboto", sans-serif;
  font-size: clamp(22px, 2vw, 34px);
  line-height: 1.05;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.98);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.22);
}

.projects-index-body .project-overlay-inner p {
  margin: 0 0 4px 0;
  font-family: "Jost", sans-serif;
  font-size: clamp(12px, 0.9vw, 16px);
  line-height: 1.35;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.94);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.22);
}

.projects-index-body .project-overlay-inner p:last-child {
  margin-bottom: 0;
}

.projects-index-body .project-card:hover .project-image-wrap img {
  transform: scale(1.02);
}

.projects-index-body .project-card:hover .project-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.28),
    rgba(0, 0, 0, 0.08) 45%,
    rgba(0, 0, 0, 0.03)
  );
}

.projects-index-body .project-card:hover .project-overlay-inner {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   INTERNAL PROJECT PAGES
   ========================================================= */

.project-detail-body {
  background: #f4f4f2;
}

.project-detail-body .project-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 10px;
  background: #f4f4f2;
  align-items: start;
}

.project-detail-body .project-gallery figure {
  margin: 0;
  display: block;
  width: 100%;
  background: #f4f4f2;
  overflow: hidden;
}

.project-detail-body .project-gallery figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* vertical images */
.project-detail-body .project-gallery figure.portrait,
.project-detail-body .project-gallery figure.vertical {
  grid-column: span 1;
}

/* horizontal images */
.project-detail-body .project-gallery figure.landscape,
.project-detail-body .project-gallery figure.horizontal {
  grid-column: 1 / -1;
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 992px) {
  .site-header {
    padding: 16px;
  }

  .htitle {
    font-size: 64px;
  }

  .hero-subtitle {
    white-space: normal;
    max-width: 250px;
    font-size: 12px;
    letter-spacing: 0.06em;
    line-height: 1.3;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
  }

  .nav-item {
    font-size: 12px;
  }

  /* index */
  .projects-index-body .projects-index-grid {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 6px;
  }

  .projects-index-body .project-image-wrap {
    aspect-ratio: 4 / 5;
    min-height: 100svh;
  }

  .projects-index-body .project-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
  }

  .projects-index-body .project-overlay {
    align-items: flex-end;
    padding: 22px 16px;
    background: linear-gradient(
      to top,
      rgba(0, 0, 0, 0.24),
      rgba(0, 0, 0, 0.06) 45%,
      rgba(0, 0, 0, 0.02)
    );
  }

  .projects-index-body .project-overlay-inner {
    opacity: 1;
    transform: none;
    max-width: 92%;
  }

  .projects-index-body .project-overlay-inner h2 {
    font-size: 18px;
    margin-bottom: 6px;
  }

  .projects-index-body .project-overlay-inner p {
    font-size: 11px;
    line-height: 1.3;
    letter-spacing: 0.04em;
  }

  /* internal */
  .project-detail-body .project-gallery {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 6px;
  }

  .project-detail-body .project-gallery figure.portrait,
  .project-detail-body .project-gallery figure.vertical,
  .project-detail-body .project-gallery figure.landscape,
  .project-detail-body .project-gallery figure.horizontal {
    grid-column: span 1;
  }
}