:root {
  --navy: #1b2a3a;
  --navy-light: #2c4258;
  --paper: #f7f5f0;
  --paper-dark: #eceae3;
  --accent: #c25b2c;
  --text: #22282f;
  --text-muted: #6b7178;
  --border: #ddd8cc;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--text);
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

header.site-header {
  background: var(--navy);
  color: #fff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

header.site-header .brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

header.site-header .brand span {
  color: #d8c9a3;
  font-weight: 400;
}

header.site-header nav {
  display: flex;
  gap: 22px;
  font-size: 0.95rem;
}

header.site-header nav a {
  opacity: 0.85;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

header.site-header nav a:hover,
header.site-header nav a.active {
  opacity: 1;
  border-bottom-color: var(--accent);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

footer.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ---------- Landing page ---------- */
.hero {
  text-align: center;
  padding: 60px 20px 40px;
}

.hero h1 {
  font-size: 2.3rem;
  margin-bottom: 8px;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

@media (max-width: 720px) {
  .project-grid { grid-template-columns: 1fr; }
}

.project-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.project-card .thumb {
  height: 220px;
  background-size: cover;
  background-position: center;
  background-color: var(--paper-dark);
}

.project-card .body {
  padding: 22px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card h2 {
  margin: 0 0 6px;
  font-size: 1.4rem;
}

.project-card p.tag {
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin: 0 0 10px;
}

.project-card p.desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex: 1;
}

.btn {
  display: inline-block;
  margin-top: 14px;
  padding: 10px 18px;
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  align-self: flex-start;
}

.project-card:hover .btn { background: var(--accent); }

/* ---------- Subsite header banner ---------- */
.page-banner {
  padding: 36px 24px 20px;
  text-align: center;
}

.page-banner h1 { margin-bottom: 6px; }
.page-banner p { color: var(--text-muted); margin: 0; }

.stats-row {
  display: flex;
  justify-content: center;
  gap: 34px;
  margin: 18px 0 6px;
  flex-wrap: wrap;
}

.stats-row .stat { text-align: center; }
.stats-row .stat .num { font-size: 1.5rem; font-weight: 700; color: var(--navy); }
.stats-row .stat .label { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ---------- Filters ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 24px 0 30px;
}

.filter-chip {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text);
}

.filter-chip.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

/* ---------- Gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}

.gallery figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
}

.gallery figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.gallery figcaption {
  padding: 8px 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  gap: 6px;
}

.gallery figcaption .cat {
  color: var(--accent);
  font-weight: 600;
}

.month-divider {
  grid-column: 1 / -1;
  margin: 20px 0 4px;
  font-weight: 700;
  color: var(--navy-light);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 20, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
}

.lightbox.open { display: flex; }

.lightbox img {
  max-width: 90vw;
  max-height: 78vh;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox .lb-caption {
  color: #eee;
  text-align: center;
  margin-top: 12px;
  font-size: 0.9rem;
}

.lightbox .lb-close,
.lightbox .lb-nav {
  position: absolute;
  color: #fff;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.3rem;
  cursor: pointer;
}

.lightbox .lb-close { top: 20px; right: 20px; }
.lightbox .lb-prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox .lb-next { right: 20px; top: 50%; transform: translateY(-50%); }

/* ---------- Placeholder / coming soon ---------- */
.coming-soon {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.coming-soon .icon { font-size: 2.4rem; margin-bottom: 10px; }