:root {
  --fg: #1a1a1a;
  --fg-muted: #555;
  --bg: #fafafa;
  --card: #fff;
  --border: #e4e4e4;
  --accent: #2b5cdb;
  --accent-soft: #e8eeff;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
}

body { font-size: 1rem; }

.header .nav-link { font-size: 1.2rem; padding: 0.4rem 0.85rem; }
.header .nav-pills .nav-link.active,
.header .nav-pills .nav-link.active:hover {
  color: #fff;
  background-color: var(--accent);
  border-radius: 4px;
}
.header .nav-pills .fa { font-size: 1.35rem; }

.container {
  max-width: 1320px;
  width: 90%;
  padding-left: 16px;
  padding-right: 16px;
}

h1 { font-size: 2.1rem; }

.stats {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 1.05rem;
  color: var(--fg-muted);
}
.stats-count strong {
  color: var(--accent);
  font-size: 1.6rem;
  font-weight: 600;
  margin-right: 4px;
}
.stats-note {
  font-size: 0.9rem;
}

.filters {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.filter-group { display: flex; flex-direction: column; gap: 8px; }
.filter-header { display: flex; align-items: center; gap: 10px; }
.filter-label {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}
.filter-clear {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font-size: 0.85rem;
  cursor: pointer;
}
.filter-clear:hover { text-decoration: underline; }

#search {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--card);
}
#search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-filter {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.88rem;
  cursor: pointer;
  color: var(--fg-muted);
}
.tag-filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.project-list {
  display: flex;
  flex-direction: column;
}

.project-card {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.project-card:first-child { padding-top: 0; }
.project-card:last-child { border-bottom: none; }

.project-teaser {
  flex: 0 0 460px;
  aspect-ratio: 16 / 9;
  align-self: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #dce4ff, #f5f0ff);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

@media (max-width: 640px) {
  .project-card { flex-direction: column; gap: 14px; }
  .project-teaser { flex: 0 0 auto; width: 100%; aspect-ratio: 16 / 9; }
}

.project-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.project-title { margin: 0; font-size: 1.2rem; }
.project-title a { color: var(--accent); }
.project-title a:hover { text-decoration: underline; }
.project-supervisor { font-size: 0.92rem; color: var(--fg-muted); margin: 0; }
.project-supervisor a:not(.contact-advisor-btn) { color: var(--fg-muted); text-decoration: none; }
.project-supervisor a:not(.contact-advisor-btn):hover { color: var(--fg); }
.project-description { margin: 0; font-size: 0.98rem; }

.project-types { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.project-type {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: 4px;
  background: #f0f0f0;
  color: var(--fg-muted);
}

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.project-tag {
  font-size: 0.78rem;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.empty {
  text-align: center;
  color: var(--fg-muted);
  padding: 48px 0;
}

/* Project page layout (used by projects/*/page.html via project-nav.js) */
body.project-body-layout { margin-top: 20px; }

.site-header-wrap { margin-bottom: 28px; }

.project-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 8px 24px 72px;
  color: var(--fg);
  line-height: 1.65;
}
.project-page h1 {
  margin: 0 0 8px;
  font-size: 2.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.project-page h2 {
  margin-top: 36px;
  margin-bottom: 12px;
  font-size: 1.3rem;
  font-weight: 600;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.project-page p {
  font-size: 1.05rem;
  margin: 0 0 16px;
}
.project-page .meta {
  color: var(--fg-muted);
  font-size: 1rem;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.project-page .meta a { color: var(--accent); }
.project-page ul {
  padding-left: 22px;
  margin: 0 0 16px;
}
.project-page li {
  margin-bottom: 6px;
  font-size: 1.05rem;
}
.project-page a {
  color: var(--accent);
  text-decoration: none;
}
.project-page a:hover { text-decoration: underline; }
.project-page img,
.project-page video {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 20px 0;
  box-shadow: var(--shadow);
}
.project-page code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}

.contact-advisor-btn {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
}
.contact-advisor-btn:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}