:root{
  --bg-dark:#0b0f14;
  --glass:rgba(255,255,255,.08);
  --glass-strong:rgba(255,255,255,.12);
  --text:#eaf2ff;
  --muted:#b9c7dc;
  --accent:#4fc3f7;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial,"Noto Sans","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji",sans-serif;
  color:var(--text);
  background:var(--bg-dark) no-repeat center/cover fixed;
  line-height:1.6;
}

/* Background overlay with a CERN-style image + gradient */
.bg-overlay{
  position:fixed; inset:0;
  background:
    linear-gradient(180deg,rgba(5,8,13,.6) 0%,rgba(5,8,13,.85) 65%,rgba(5,8,13,.95) 100%),
    url("images/cern-bg.jpg") center/cover no-repeat fixed;
  filter:saturate(1.05) contrast(1.05);
  z-index:-1;
  pointer-events:none; /* avoid intercepting clicks */
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:10;
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 28px;
  background:linear-gradient(180deg,rgba(5,8,13,.75),rgba(5,8,13,.15));
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.brand{display:flex; align-items:center; gap:.6rem; font-weight:800; letter-spacing:.3px; font-size:1.05rem}
.brand a{color:var(--text); text-decoration:none}
.brand .dot{width:10px; height:10px; background:var(--accent); border-radius:50%; box-shadow:0 0 18px var(--accent)}

.nav a{color:var(--muted); text-decoration:none; margin-left:18px; font-weight:600; transition:color .2s ease}
.nav a:hover{color:var(--text)}

/* Layout */
.container{max-width:1100px; margin:48px auto 80px; padding:0 20px}

/* Hero card: glass look */
.hero-card{
  margin-top:100px;
  padding:100px 28px 28px; /* top space for overlap + regular padding */
  position:relative; z-index:1;
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  border-radius:20px;
  backdrop-filter:blur(10px);
  box-shadow:0 10px 40px rgba(0,0,0,.35);
}

.hero-text h1{margin:0 0 6px; font-size:2.1rem; line-height:1.2}
.subtitle{margin:0 0 18px; color:var(--muted); font-weight:600}
.lede{font-size:1.1rem; margin:0 0 10px}

/* Buttons */
.cta{margin-top:18px; display:flex; gap:12px; flex-wrap:wrap}
.btn{
  display:inline-block; padding:10px 16px; border-radius:12px;
  background:linear-gradient(135deg,#4fc3f7,#6aa7ff);
  color:#08121c; text-decoration:none; font-weight:800; letter-spacing:.2px;
  box-shadow:0 8px 24px rgba(79,195,247,.35);
  transition:transform .08s ease, box-shadow .2s ease;
}
.btn:hover{transform:translateY(-1px); box-shadow:0 10px 30px rgba(79,195,247,.5)}
.btn.ghost{background:transparent; color:var(--text); border:2px solid rgba(255,255,255,.2); box-shadow:none}
.btn.ghost:hover{border-color:rgba(255,255,255,.35)}

/* References (remove block in HTML if you don’t want it) */
.refs{
  margin-top:26px; padding:22px 26px; background:var(--glass-strong);
  border:1px solid rgba(255,255,255,.12); border-radius:16px;
}
.refs h2{margin:0 0 10px; font-size:1.1rem}
.refs ul{margin:0; padding-left:18px}
.refs a{color:#a8d8ff; text-decoration:underline}
.refs a:hover{text-decoration:none}

/* Footer */
.site-footer{text-align:center; color:var(--muted); padding:36px 20px 60px}

/* Body text links */
a{color:#76d2ff; text-decoration:none; transition:color .2s, text-decoration-color .2s}
a:hover{color:#fff; text-decoration:underline; text-decoration-color:#76d2ff}

/* Keep nav text clean even with global link hover */
.nav a, .nav a:hover{ text-decoration:none !important }

/* Experimental block */
.exp-block{
  margin-top:20px;
  display:flex;
  align-items:flex-start;
  gap:16px;
}
.exp-text{ flex:1 1 60%; min-width: 280px; }
.exp-photo{
  flex:0 0 280px;
  max-width:280px;
  margin:0;
  text-align:center;
  font-size:.85rem;
  color:var(--muted);
}
.exp-photo img{
  width:100%;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.15);
  box-shadow:0 6px 20px rgba(0,0,0,.4);
}

/* NEW RESEARCH BLOCK */
.research-block{
  margin-top:28px;
  padding:22px 26px;
  background:var(--glass-strong);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
}
.research-block h2{
  margin:0 0 10px;
  font-size:1.2rem;
}
.research-block p{
  margin:0 0 14px;
}

/* Responsive: stack image below text on small screens */
@media (max-width: 820px){
  .exp-block{ flex-direction:column; }
  .exp-photo{ flex:none; max-width:100%; }
}

.gif-photo {
  max-width: 500px;
  margin: 16px auto;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
.gif-photo img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

/* Big floating photo */
.big-photo{position:relative; z-index:2; text-align:center; margin-bottom:-80px}
.big-photo img{
  width:220px; height:220px; object-fit:cover; border-radius:50%;
  border:5px solid rgba(255,255,255,.3);
  box-shadow:0 15px 40px rgba(0,0,0,.55);
}

/* Separator */
.section-sep{border:none; border-top:1px solid rgba(255,255,255,.15); margin:28px 0}

/* Mobile */
@media (max-width:720px){
  .big-photo img{ box-shadow:0 15px 40px rgba(0,0,0,.55), 0 0 30px rgba(79,195,247,.25) }
  .hero-text h1{font-size:1.8rem}
}

/* A11y */
a:focus, button:focus, .btn:focus{ outline:2px solid var(--accent); outline-offset:2px }

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto !important}
  .btn, a{transition:none !important}
}

.more-results {
  margin-top: 40px;
  text-align: center;
}

.more-results h2 {
  margin-bottom: 20px;
  font-size: 1.6rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.result-card {
  display: block;
  background: var(--glass);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  overflow: hidden;                    /* round the image corners, too */
  text-decoration: none;
  color: var(--text);
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}

.result-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  border-color: rgba(255,255,255,0.2);
}

.result-thumb {
  aspect-ratio: 16 / 9;                /* keep a consistent thumbnail ratio */
  background: rgba(255,255,255,.04);
}

.result-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.result-body {
  padding: 14px 16px 18px;
}

.result-card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.result-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}