/* bpgdesign static mockup — clean, modern, responsive */
:root {
  --bg: #fafafa;
  --ink: #1a1a1a;
  --muted: #666;
  --line: #e8e8e8;
  --white: #fff;
  --max: 1120px;
  --gap: 1rem;
  --radius: 4px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { opacity: 0.7; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.logo img { height: 28px; width: auto; }

.nav { display: flex; gap: 1.5rem; font-size: 0.9rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }
.nav a { text-decoration: none; }
.nav a:hover { text-decoration: underline; }

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  text-align: center;
}

.brand {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.1;
}

.tagline {
  margin: 1.25rem 0 0;
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 400;
}

.portfolio, .contact {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.portfolio h2, .contact h2 {
  margin: 0 0 2rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.card {
  appearance: none;
  border: 0;
  padding: 0;
  margin: 0;
  background: var(--white);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 1 / 1;
  text-align: left;
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.card:hover img, .card:focus-visible img { transform: scale(1.04); }

.card-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 2.5rem 0.85rem 0.85rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.72));
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.card:hover .card-caption,
.card:focus-visible .card-caption {
  opacity: 1;
  transform: translateY(0);
}

.card:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.contact { text-align: center; padding-bottom: 5rem; }
.place { margin: 0 0 0.35rem; font-size: 1.05rem; }
.email { font-size: 1.05rem; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}
.site-footer p { margin: 0; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox[hidden] { display: none; }

.lb-figure { margin: 0; max-width: min(920px, 100%); text-align: center; }
.lb-figure img {
  max-height: 78vh;
  width: auto;
  max-width: 100%;
  margin: 0 auto;
  border-radius: 2px;
}
#lb-caption {
  margin-top: 0.85rem;
  color: #ddd;
  font-size: 0.9rem;
}

.lb-close, .lb-prev, .lb-next {
  appearance: none;
  border: 0;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: 2rem;
  line-height: 1;
  padding: 0.5rem;
  opacity: 0.85;
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover { opacity: 1; }
.lb-close { position: absolute; top: 0.75rem; right: 1rem; font-size: 2.4rem; }
.lb-prev, .lb-next { position: absolute; top: 50%; transform: translateY(-50%); }
.lb-prev { left: 0.75rem; }
.lb-next { right: 0.75rem; }

body.lb-open { overflow: hidden; }

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; gap: 0.75rem; }
  .hero { padding: 4rem 1.25rem 3rem; }
  .card-caption { opacity: 1; transform: none; }
  .lb-prev, .lb-next { font-size: 1.6rem; }
}