:root {
  --bg: #000;
  --fg: #f2f2f2;
  --muted: #8a8a8a;
  --gap: 2px;
  --pad: 32px;
  --maxw: 1600px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  font-weight: 300;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a:hover { opacity: 0.55; }

img { display: block; max-width: 100%; height: auto; }

/* ---------- Header ---------- */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px var(--pad);
  background: var(--bg);
  z-index: 100;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

header .brand {
  font-weight: 400;
  letter-spacing: 0.22em;
}

header nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
}

header nav a.active { opacity: 0.55; }

/* ---------- Layout ---------- */
main {
  padding: 96px var(--pad) 64px;
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 100vh;
}

.page-title {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 400;
  margin-bottom: 48px;
  color: var(--muted);
}

/* ---------- Home ---------- */
.home {
  padding: 0;
  max-width: none;
}

.home-hero {
  height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.home-hero .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home-hero .slide.active { opacity: 1; }

.home-hero .slide img,
.home-hero .slide .placeholder {
  max-height: 80vh;
  max-width: 80vw;
  width: auto;
  height: auto;
}

.home-caption {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Projects index ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.project-card {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.project-card .placeholder,
.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.4s ease;
}

.project-card .label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: opacity 0.3s ease;
  text-align: center;
  padding: 16px;
}

.project-card:hover .label { opacity: 1; }
.project-card:hover img,
.project-card:hover .placeholder { opacity: 0.7; }

/* ---------- Project detail ---------- */
.project-header {
  margin-bottom: 48px;
  max-width: 640px;
}

.project-header h1 {
  font-size: 14px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 400;
  margin-bottom: 24px;
}

.project-header p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.image-grid .tile {
  aspect-ratio: 1 / 1;
  cursor: zoom-in;
  overflow: hidden;
  position: relative;
}

.image-grid .tile img,
.image-grid .tile .placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease;
}

.image-grid .tile:hover img,
.image-grid .tile:hover .placeholder { opacity: 0.75; }

/* Placeholder styling — colour is set inline per tile from app.js */
.placeholder {
  background: #2a2a2a;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.55);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  text-align: center;
  padding: 16px;
}

/* ---------- About / Contact / Blog ---------- */
.prose {
  max-width: 560px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fg);
}

.prose p { margin-bottom: 1.4em; }
.prose a { border-bottom: 1px solid var(--muted); }

.blog-list { list-style: none; max-width: 640px; }
.blog-list li {
  padding: 24px 0;
  border-bottom: 1px solid #1a1a1a;
}
.blog-list .date {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.blog-list h3 {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.97);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 64px;
  flex-direction: column;
  gap: 24px;
}

.lightbox.open { display: flex; }

.lightbox img,
.lightbox .placeholder {
  max-width: 90vw;
  max-height: 75vh;
  width: auto;
  height: auto;
}

.lightbox .meta {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  max-width: 600px;
}

.lightbox .meta .title { color: var(--fg); margin-bottom: 8px; }

.lightbox .close {
  position: absolute;
  top: 24px; right: 32px;
  font-size: 18px;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--fg);
}

.lightbox .nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--fg);
  font-size: 24px;
  cursor: pointer;
  padding: 24px;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}
.lightbox .nav-btn:hover { opacity: 1; }
.lightbox .prev { left: 16px; }
.lightbox .next { right: 16px; }

/* ---------- Footer ---------- */
footer {
  padding: 48px var(--pad);
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  :root { --pad: 20px; }
  header { padding: 20px var(--pad); font-size: 10px; }
  header nav ul { gap: 18px; }
  .projects-grid, .image-grid { grid-template-columns: repeat(2, 1fr); }
  main { padding-top: 80px; }
}

@media (max-width: 480px) {
  header { flex-direction: column; gap: 12px; align-items: flex-start; }
  main { padding-top: 110px; }
  .projects-grid, .image-grid { grid-template-columns: 1fr; }
}