/* ── Global ── */
:root {
  --bg-dark:        #0a0a14;
  --bg-card:        rgba(16, 18, 38, 0.82);
  --bg-card-hover:  rgba(28, 30, 55, 0.90);
  --accent:         #7b8cde;
  --accent-light:   #a9b4f0;
  --text-main:      #dde1f0;
  --text-muted:     #9aa3c2;
  --border:         rgba(80, 90, 160, 0.35);
}

body {
  background-color: var(--bg-dark) !important;
  background-image: url('images/background.jpg');
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text-main) !important;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  line-height: 1.75;
}

/* Dark overlay over background to keep text readable */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 18, 0.72);
  z-index: 0;
  pointer-events: none;
}

#quarto-document-content,
.quarto-title-block,
main {
  position: relative;
  z-index: 1;
}

/* ── Navbar ── */
.navbar {
  background-color: rgba(10, 10, 25, 0.80) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 1.5rem;
  position: relative;
  z-index: 10;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-light) !important;
  letter-spacing: 0.03em;
}

.navbar-nav .nav-link {
  color: var(--text-muted) !important;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem !important;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--accent-light) !important;
  background: rgba(123, 140, 222, 0.12);
}

/* ── Page title / header ── */
#quarto-document-content h1.title,
.quarto-title h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 0.2rem;
}

h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 1.4rem;
}

/* ── Links ── */
a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: #fff; text-decoration: underline; }

/* ── Sidebar card (right column) ── */
.sidebar-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.6rem 1.2rem;
  text-align: center;
  position: sticky;
  top: 90px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.sidebar-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0;
}

.sidebar-card strong {
  display: block;
  color: var(--text-main);
  font-size: 1rem;
  margin-top: 0.8rem;
  margin-bottom: 0.1rem;
}

.sidebar-card hr {
  border-color: var(--border);
  margin: 1rem 0;
}

/* ── Profile photo ── */
.profile-photo {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--accent);
  display: block;
  margin: 0 auto 0.8rem;
  box-shadow: 0 4px 20px rgba(123,140,222,0.3);
}

/* ── Social links ── */
.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.6rem;
}

.social-links a {
  display: block;
  color: var(--text-muted) !important;
  font-size: 0.88rem;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.social-links a:hover {
  color: var(--accent-light) !important;
  background: rgba(123,140,222,0.1);
  text-decoration: none;
}

/* ── Affiliation table ── */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
}

table td {
  padding: 0.4rem 0.8rem;
  border: none;
  color: var(--text-main);
  font-size: 0.95rem;
}

table td:first-child {
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  width: 160px;
}

/* ── Publication entries ── */
p strong {
  color: var(--accent);
}

/* ── Main content glass card (left column only) ── */
.main-card {
  background: rgba(10, 12, 28, 0.70);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem 2.4rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.55);
}

/* ── TOC sidebar (publications page) ── */
#TOC {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  font-size: 0.88rem;
}

/* ── Footer ── */
.nav-footer {
  background: rgba(8, 8, 20, 0.85) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 1rem;
  position: relative;
  z-index: 1;
}

.nav-footer a { color: var(--accent-light); }

/* ── GWDALI Banner ── */
.gwdali-banner {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 2rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.7);
}

.banner-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center center;
  display: block;
  margin: 0;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(5, 5, 20, 0.75) 0%,
    rgba(5, 5, 20, 0.30) 60%,
    rgba(5, 5, 20, 0.0) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 2.5rem;
}

.banner-overlay h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: #fff !important;
  letter-spacing: 0.04em;
  margin: 0 0 0.3rem 0;
  text-shadow: 0 2px 16px rgba(0,0,0,0.8);
  border: none !important;
}

.banner-overlay h3 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--accent-light) !important;
  margin: 0;
  text-shadow: 0 2px 10px rgba(0,0,0,0.9);
}

/* ── Inner pages glass card ── */
.content-wrapper-page {
  background: rgba(10, 12, 28, 0.70);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem 2.4rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.55);
  margin-top: 1rem;
}

/* ── Video grid ── */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.video-card {
  background: rgba(20, 22, 48, 0.75);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.video-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(123, 140, 222, 0.2);
}

.video-card h3 {
  font-size: 0.98rem;
  margin-top: 0;
  color: var(--accent-light);
}

.video-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.video-card iframe,
.video-card lite-youtube {
  width: 100%;
  border-radius: 8px;
  aspect-ratio: 16/9;
  border: none;
  margin-top: 0.6rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar-card { position: static; margin-top: 2rem; }
  .main-card { padding: 1.2rem; }
}