/* ═══════════════════════════════════════════
   VOX LAPIDUM – Design System
   Ancient inscriptions meet modern design
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ── */
:root {
  --clr-bg:        #0e0f13;
  --clr-bg-alt:    #151720;
  --clr-surface:   #1a1d28;
  --clr-surface-2: #222536;
  --clr-border:    #2a2e42;
  --clr-border-lt: #353a52;
  --clr-text:      #edecea;
  --clr-text-dim:  #b5b2a9;
  --clr-text-mute: #7d7a71;
  --clr-gold:      #c9a84c;
  --clr-gold-lt:   #e2c97e;
  --clr-gold-dk:   #8a6f2e;
  --clr-accent:    #4a7cba;
  --clr-accent-lt: #6b9fd4;
  --clr-teal:      #3d8b8b;

  --ff-display: 'Cinzel', serif;
  --ff-body:    'Cormorant Garamond', serif;
  --ff-ui:      'Inter', sans-serif;

  --fs-hero:  clamp(2.8rem, 6vw, 5.5rem);
  --fs-h1:    clamp(2rem, 4vw, 3.2rem);
  --fs-h2:    clamp(1.5rem, 3vw, 2.2rem);
  --fs-h3:    clamp(1.15rem, 2vw, 1.5rem);
  --fs-body:  1.15rem;
  --fs-small: 0.92rem;
  --fs-ui:    0.85rem;

  --radius:   12px;
  --radius-sm: 6px;
  --shadow:   0 4px 24px rgba(0,0,0,.35);
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:var(--ff-body);
  font-size:var(--fs-body);
  color:var(--clr-text);
  background:var(--clr-bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--clr-gold);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--clr-gold-lt)}
ul{list-style:none}

.container{width:min(1200px,90%);margin-inline:auto}

/* ── Navigation ── */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(14,15,19,.85);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--clr-border);
  transition:background var(--transition);
}
.navbar .container{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.nav-logo{
  font-family:var(--ff-display);font-size:1.3rem;
  color:var(--clr-gold);letter-spacing:.12em;font-weight:600;
  display:flex;align-items:center;gap:10px;
}
.nav-logo .logo-dot{
  width:8px;height:8px;background:var(--clr-gold);
  border-radius:50%;display:inline-block;
}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-text-dim);letter-spacing:.06em;
  text-transform:uppercase;font-weight:500;
  position:relative;padding:4px 0;
}
.nav-links a::after{
  content:'';position:absolute;bottom:-2px;left:0;
  width:0;height:2px;background:var(--clr-gold);
  transition:width var(--transition);
}
.nav-links a:hover,
.nav-links a.active{color:var(--clr-gold)}
.nav-links a:hover::after,
.nav-links a.active::after{width:100%}

.nav-toggle{display:none;background:0;border:0;color:var(--clr-text);cursor:pointer;font-size:1.5rem}

/* ── Hero ── */
.hero{
  position:relative;min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:url('../img/hero.png') center/cover no-repeat;
  filter:brightness(.35);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,15,19,.5) 0%,rgba(14,15,19,.2) 40%,rgba(14,15,19,.85) 100%);
}
.hero-content{
  position:relative;z-index:2;
  max-width:800px;padding:0 20px;
}
.hero-badge{
  display:inline-block;
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-gold);letter-spacing:.25em;text-transform:uppercase;
  border:1px solid var(--clr-gold-dk);padding:6px 20px;
  border-radius:999px;margin-bottom:28px;
  animation:fadeDown .8s ease-out both;
}
.hero h1{
  font-family:var(--ff-display);font-size:var(--fs-hero);
  color:var(--clr-text);line-height:1.1;font-weight:700;
  letter-spacing:.06em;margin-bottom:20px;
  animation:fadeDown 1s ease-out .2s both;
}
.hero h1 span{color:var(--clr-gold)}
.hero-sub{
  font-family:var(--ff-body);font-size:clamp(1.1rem,2vw,1.45rem);
  color:var(--clr-text-dim);font-style:italic;
  max-width:600px;margin:0 auto 36px;
  animation:fadeDown 1s ease-out .4s both;
}
.hero-cta{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--ff-ui);font-size:var(--fs-small);
  color:var(--clr-bg);background:var(--clr-gold);
  padding:14px 32px;border-radius:var(--radius-sm);
  letter-spacing:.08em;text-transform:uppercase;font-weight:600;
  transition:all var(--transition);
  animation:fadeDown 1s ease-out .6s both;
}
.hero-cta:hover{background:var(--clr-gold-lt);color:var(--clr-bg);transform:translateY(-2px)}

.scroll-hint{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  z-index:2;animation:bounce 2s infinite;
}
.scroll-hint span{
  display:block;width:24px;height:40px;
  border:2px solid var(--clr-text-mute);border-radius:12px;
  position:relative;
}
.scroll-hint span::after{
  content:'';position:absolute;top:6px;left:50%;
  width:4px;height:8px;background:var(--clr-gold);
  border-radius:2px;transform:translateX(-50%);
  animation:scrollDot 1.5s infinite;
}

/* ── Sections ── */
section{padding:100px 0}
section:nth-child(even){background:var(--clr-bg-alt)}

.section-header{text-align:center;margin-bottom:64px}
.section-label{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-gold);letter-spacing:.2em;text-transform:uppercase;
  font-weight:500;margin-bottom:12px;
}
.section-title{
  font-family:var(--ff-display);font-size:var(--fs-h1);
  color:var(--clr-text);letter-spacing:.04em;font-weight:600;
}
.section-title::after{
  content:'';display:block;width:60px;height:3px;
  background:linear-gradient(90deg,var(--clr-gold),transparent);
  margin:16px auto 0;
}
.section-desc{
  color:var(--clr-text-dim);max-width:700px;margin:20px auto 0;
  font-size:1.1rem;
}

/* ── About ── */
.about-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;
}
.about-text p{margin-bottom:1.2em;color:var(--clr-text-dim)}
.about-text p:first-child{font-size:1.2rem;color:var(--clr-text)}

.goals-list{display:grid;gap:20px;margin-top:32px}
.goal-card{
  display:flex;gap:20px;align-items:start;
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius);padding:24px;
  transition:all var(--transition);
}
.goal-card:hover{border-color:var(--clr-gold-dk);transform:translateX(4px)}
.goal-num{
  font-family:var(--ff-display);font-size:2rem;
  color:var(--clr-gold);line-height:1;min-width:40px;
  font-weight:700;
}
.goal-card h4{
  font-family:var(--ff-display);font-size:1.05rem;
  color:var(--clr-text);margin-bottom:6px;letter-spacing:.03em;
}
.goal-card p{font-size:var(--fs-small);color:var(--clr-text-dim);line-height:1.6}

/* ── Timeline ── */
.timeline{position:relative;max-width:900px;margin:0 auto}
.timeline::before{
  content:'';position:absolute;left:50%;top:0;bottom:0;
  width:2px;background:linear-gradient(180deg,var(--clr-gold),var(--clr-border),var(--clr-gold));
  transform:translateX(-50%);
}
.tl-item{
  position:relative;width:50%;padding:0 40px 60px;
}
.tl-item:nth-child(odd){left:0;text-align:right}
.tl-item:nth-child(even){left:50%;text-align:left}
.tl-dot{
  position:absolute;top:8px;width:16px;height:16px;
  background:var(--clr-gold);border:3px solid var(--clr-bg);
  border-radius:50%;z-index:2;
}
.tl-item:nth-child(odd) .tl-dot{right:-8px}
.tl-item:nth-child(even) .tl-dot{left:-8px}
.tl-item.active .tl-dot{box-shadow:0 0 0 4px rgba(201,168,76,.3)}

.tl-date{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-gold);letter-spacing:.12em;text-transform:uppercase;
  font-weight:600;margin-bottom:6px;
}
.tl-card{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius);padding:24px;
  transition:all var(--transition);
}
.tl-card:hover{border-color:var(--clr-gold-dk)}
.tl-card h3{
  font-family:var(--ff-display);font-size:var(--fs-h3);
  color:var(--clr-text);margin-bottom:8px;letter-spacing:.03em;
}
.tl-card p{font-size:var(--fs-small);color:var(--clr-text-dim)}
.tl-tag{
  display:inline-block;margin-top:12px;
  font-family:var(--ff-ui);font-size:.75rem;
  color:var(--clr-gold);background:rgba(201,168,76,.1);
  padding:3px 10px;border-radius:999px;letter-spacing:.05em;
}

/* ── Team ── */
.team-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:24px;
}
.team-card{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius);padding:28px 24px;
  text-align:center;transition:all var(--transition);
}
.team-card:hover{border-color:var(--clr-gold-dk);transform:translateY(-4px)}
.team-avatar{
  width:80px;height:80px;border-radius:50%;
  background:linear-gradient(135deg,var(--clr-gold-dk),var(--clr-accent));
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;font-family:var(--ff-display);
  font-size:1.4rem;color:var(--clr-text);font-weight:600;
}
.team-photo{
  width:80px;height:80px;border-radius:50%;
  object-fit:cover;margin:0 auto 16px;
  border:2px solid var(--clr-border);
  transition:border-color var(--transition);
}
.team-card:hover .team-photo{border-color:var(--clr-gold-dk)}
.team-card h4{
  font-family:var(--ff-display);font-size:1.05rem;
  color:var(--clr-text);letter-spacing:.03em;margin-bottom:4px;
}
.team-card .team-role{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-gold);margin-bottom:6px;
}
.team-card .team-inst{
  font-family:var(--ff-ui);font-size:.78rem;
  color:var(--clr-text-mute);
}
.team-section-label{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-text-mute);letter-spacing:.15em;text-transform:uppercase;
  text-align:center;margin:48px 0 20px;font-weight:500;
}

/* ── ELTB Feature ── */
.eltb-feature{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;
  align-items:center;
}
.eltb-visual{
  position:relative;background:var(--clr-surface);
  border:1px solid var(--clr-border);border-radius:var(--radius);
  padding:32px;overflow:hidden;
}
.eltb-visual::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--clr-gold),var(--clr-accent),var(--clr-teal));
}
.eltb-code{
  font-family:'Courier New',monospace;font-size:.85rem;
  color:var(--clr-text-dim);line-height:1.8;
}
.eltb-code .tag{color:var(--clr-accent-lt)}
.eltb-code .val{color:var(--clr-gold)}
.eltb-code .comment{color:var(--clr-text-mute);font-style:italic}

.eltb-info h3{
  font-family:var(--ff-display);font-size:var(--fs-h2);
  color:var(--clr-text);margin-bottom:16px;letter-spacing:.03em;
}
.eltb-info p{color:var(--clr-text-dim);margin-bottom:16px}
.eltb-stats{display:flex;gap:32px;margin-top:28px}
.eltb-stat{text-align:center}
.eltb-stat .num{
  font-family:var(--ff-display);font-size:2rem;
  color:var(--clr-gold);font-weight:700;display:block;
}
.eltb-stat .lbl{
  font-family:var(--ff-ui);font-size:.75rem;
  color:var(--clr-text-mute);text-transform:uppercase;letter-spacing:.1em;
}
.btn-eltb{
  display:inline-flex;align-items:center;gap:8px;margin-top:24px;
  font-family:var(--ff-ui);font-size:var(--fs-small);
  color:var(--clr-gold);border:1px solid var(--clr-gold-dk);
  padding:12px 24px;border-radius:var(--radius-sm);
  letter-spacing:.06em;text-transform:uppercase;font-weight:500;
  transition:all var(--transition);
}
.btn-eltb:hover{background:rgba(201,168,76,.1);color:var(--clr-gold-lt)}

/* ── News / Events / Publications ── */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}
.news-card{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius);overflow:hidden;
  transition:all var(--transition);
}
.news-card:hover{border-color:var(--clr-gold-dk);transform:translateY(-3px)}
.news-card-body{padding:24px}
.news-date{
  font-family:var(--ff-ui);font-size:.75rem;
  color:var(--clr-gold);letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:8px;
}
.news-card h3{
  font-family:var(--ff-display);font-size:1.15rem;
  color:var(--clr-text);margin-bottom:8px;letter-spacing:.02em;
}
.news-card p{font-size:var(--fs-small);color:var(--clr-text-dim)}
.news-tag{
  display:inline-block;margin-top:12px;
  font-family:var(--ff-ui);font-size:.7rem;
  padding:3px 10px;border-radius:999px;letter-spacing:.06em;
  text-transform:uppercase;font-weight:500;
}
.news-tag.event{color:var(--clr-teal);background:rgba(61,139,139,.12)}
.news-tag.news{color:var(--clr-accent-lt);background:rgba(74,124,186,.12)}
.news-tag.pub{color:var(--clr-gold);background:rgba(201,168,76,.1)}

/* ── Publications list ── */
.pub-list{max-width:800px;margin:0 auto;display:grid;gap:16px}
.pub-item{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius-sm);padding:20px 24px;
  display:flex;gap:16px;align-items:start;
  transition:border-color var(--transition);
}
.pub-item:hover{border-color:var(--clr-gold-dk)}
.pub-icon{
  font-size:1.4rem;min-width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(201,168,76,.08);border-radius:var(--radius-sm);
  color:var(--clr-gold);
}
.pub-item h4{font-family:var(--ff-body);font-size:1.05rem;color:var(--clr-text);margin-bottom:4px}
.pub-item p{font-size:var(--fs-small);color:var(--clr-text-dim)}

/* ── Partners ── */
.partners-row{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:40px;align-items:center;margin-top:40px;
}
.partner-logo{
  background:var(--clr-surface);border:1px solid var(--clr-border);
  border-radius:var(--radius);padding:24px 32px;
  font-family:var(--ff-ui);font-size:var(--fs-small);
  color:var(--clr-text-dim);transition:all var(--transition);
  text-align:center;min-width:200px;
  display:flex;flex-direction:column;align-items:center;
  cursor:pointer;text-decoration:none;
}
.partner-logo:hover{
  border-color:var(--clr-gold-dk);color:var(--clr-text);
  transform:translateY(-4px);box-shadow:0 8px 32px rgba(201,168,76,.1);
}
.partner-logo .partner-name{font-weight:600;color:var(--clr-text);margin-bottom:2px}
.partner-logo:hover .partner-name{color:var(--clr-gold)}
.partner-icon{
  font-size:2rem;margin-bottom:10px;
  width:52px;height:52px;display:flex;
  align-items:center;justify-content:center;
  background:rgba(201,168,76,.08);border-radius:50%;
}
.partner-img{
  max-width:160px;height:48px;object-fit:contain;
  margin-bottom:12px;opacity:.7;
  transition:opacity var(--transition);
}
.partner-img-dark{
  filter:invert(1);opacity:.6;
}
.partner-logo:hover .partner-img{opacity:1}

/* ── Footer ── */
.footer{
  background:var(--clr-bg);border-top:1px solid var(--clr-border);
  padding:60px 0 32px;
  font-family:var(--ff-ui);
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;
  margin-bottom:48px;
}
.footer-brand .nav-logo{margin-bottom:16px}
.footer-brand p{color:var(--clr-text-dim);font-size:var(--fs-small)}
.footer h5{
  font-family:var(--ff-ui);font-size:var(--fs-ui);
  color:var(--clr-gold);letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:16px;font-weight:600;
}
.footer ul li{margin-bottom:8px;font-size:var(--fs-small);color:var(--clr-text-dim)}
.footer ul a{color:var(--clr-text-dim);font-size:var(--fs-small)}
.footer ul a:hover{color:var(--clr-gold)}
.footer-logos-bar{
  display:flex;align-items:center;justify-content:center;
  gap:72px;padding:36px 0;margin-bottom:24px;
  border-top:1px solid var(--clr-border);
}
.footer-inst-logo{
  height:64px;width:auto;
  filter:invert(1) sepia(.2) saturate(.5) brightness(.75);
  opacity:.6;
  transition:opacity var(--transition);
}
.footer-inst-logo.logo-light{
  filter:none;opacity:.5;
}
.footer-logos-bar a:hover .footer-inst-logo{opacity:1}
.footer-inst-text{
  font-family:var(--ff-ui);font-size:.9rem;font-weight:600;
  color:var(--clr-text-mute);letter-spacing:.08em;
  padding:8px 16px;border:1px solid var(--clr-border);border-radius:var(--radius-sm);
  transition:all var(--transition);
}
.footer-logos-bar a:hover .footer-inst-text{color:var(--clr-gold);border-color:var(--clr-gold-dk)}
.footer-bottom{
  border-top:1px solid var(--clr-border);padding-top:24px;
  text-align:center;
  font-size:.78rem;color:var(--clr-text-mute);
}

/* ── Animations ── */
@keyframes fadeDown{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes bounce{
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(8px)}
}
@keyframes scrollDot{
  0%{opacity:1;top:6px}
  100%{opacity:0;top:20px}
}

.fade-in{opacity:0;transform:translateY(24px);transition:all .7s ease-out}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ── Responsive ── */
@media(max-width:968px){
  .about-grid,.eltb-feature{grid-template-columns:1fr}
  .eltb-feature .eltb-visual{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;
    background:rgba(14,15,19,.98);
    flex-direction:column;padding:32px;gap:20px;
    transform:translateY(-120%);transition:transform var(--transition);
    border-bottom:1px solid var(--clr-border);
  }
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:block}

  .timeline::before{left:20px}
  .tl-item{width:100%;left:0!important;text-align:left!important;padding-left:52px;padding-right:0}
  .tl-item .tl-dot{left:12px!important;right:auto!important}

  .team-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center}
}
@media(max-width:480px){
  .team-grid{grid-template-columns:1fr}
  .eltb-stats{flex-direction:column;gap:16px}
}