@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=DM+Sans:wght@300;400;500;600&family=Noto+Sans+Georgian:wght@300;400;600&display=swap');
:root{--navy:#0d1f3c;--blue:#1a56db;--blue-light:#3b82f6;--accent:#00b4d8;--white:#fff;--grey-light:#f0f4f8;--grey:#94a3b8;--text:#1e293b;--text-light:#64748b}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'DM Sans','Noto Sans Georgian',sans-serif;color:var(--text);background:var(--white);overflow-x:hidden}

/* HEADER */
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(13,31,60,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08);padding:0 32px;height:70px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo-icon{width:52px;height:52px;border-radius:10px;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-icon img{width:100%;height:100%;object-fit:contain}
.logo-text{color:white;line-height:1.25;max-width:180px}
.logo-text .main{font-size:12.5px;font-weight:600;letter-spacing:.2px;line-height:1.3}
.logo-text .sub{font-size:10px;color:var(--accent);letter-spacing:1.2px;text-transform:uppercase;white-space:nowrap;margin-top:2px;display:block}
nav{display:flex;align-items:center;gap:4px}
nav a{color:rgba(255,255,255,.75);text-decoration:none;font-size:12.5px;font-weight:400;padding:7px 10px;border-radius:8px;transition:.2s;letter-spacing:.1px;white-space:nowrap}
nav a:hover,nav a.active{color:white;background:rgba(255,255,255,.1)}
.lang-btn{background:rgba(0,180,216,.15);border:1px solid rgba(0,180,216,.4);color:var(--accent);padding:6px 16px;border-radius:20px;cursor:pointer;font-size:13px;font-weight:600;letter-spacing:1px;transition:.2s;margin-left:10px;font-family:inherit}
.lang-btn:hover{background:var(--accent);color:white}

/* HERO SLIDER */
.hero{position:relative;height:100vh;overflow:hidden}
.slides{display:flex;height:100%;transition:transform .8s cubic-bezier(.77,0,.175,1)}
.slide{min-width:100%;height:100%;position:relative;background-size:cover;background-position:center}
.slide-1{background:linear-gradient(135deg,#0d1f3c 0%,#1a3a6b 40%,#0a4a7a 100%)}
.slide-2{background:linear-gradient(135deg,#061220 0%,#0d2b4a 50%,#1a4560 100%)}
.slide-3{background:linear-gradient(135deg,#0a1628 0%,#162544 50%,#0d3358 100%)}
.slide-4{background:linear-gradient(135deg,#050e1a 0%,#0d1f3c 50%,#1a2d50 100%)}
.slide::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(26,86,219,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(26,86,219,.1) 1px,transparent 1px);background-size:60px 60px;opacity:.5}
.slide::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(0,180,216,.15) 0%,transparent 60%),radial-gradient(ellipse at 80% 20%,rgba(26,86,219,.2) 0%,transparent 50%)}
.slide-content{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:0 10% 0 8%;z-index:2;max-width:820px}
.slide-tag{background:rgba(0,180,216,.2);border:1px solid rgba(0,180,216,.5);color:var(--accent);padding:6px 16px;border-radius:20px;font-size:12px;letter-spacing:2px;text-transform:uppercase;margin-bottom:24px;animation:fadeUp .8s ease both;animation-delay:.3s}
.slide-title{font-family:'Playfair Display',serif;font-size:clamp(34px,5vw,62px);color:white;font-weight:700;line-height:1.15;margin-bottom:20px;animation:fadeUp .8s ease both;animation-delay:.5s}
.slide-sub{font-size:16px;color:rgba(255,255,255,.65);line-height:1.7;margin-bottom:36px;animation:fadeUp .8s ease both;animation-delay:.7s;max-width:520px}
.slide-btn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--blue),var(--blue-light));color:white;padding:14px 32px;border-radius:8px;text-decoration:none;font-weight:600;font-size:14px;transition:.3s;animation:fadeUp .8s ease both;animation-delay:.9s;box-shadow:0 8px 30px rgba(26,86,219,.4)}
.slide-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(26,86,219,.5)}
.slider-arrows{position:absolute;inset:0;display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:10;pointer-events:none}
.arrow{width:48px;height:48px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;color:white;font-size:20px;transition:.2s;pointer-events:all;backdrop-filter:blur(8px)}
.arrow:hover{background:rgba(255,255,255,.2)}
.dots{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:10}
.dot{width:8px;height:8px;border-radius:4px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.dot.active{background:var(--accent);width:28px}
.scroll-hint{position:absolute;bottom:36px;right:48px;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:10;color:rgba(255,255,255,.4);font-size:11px;letter-spacing:2px;text-transform:uppercase}
.scroll-line{width:1px;height:50px;background:linear-gradient(to bottom,var(--accent),transparent);animation:scrollDown 1.5s ease-in-out infinite}
@keyframes scrollDown{0%,100%{transform:scaleY(.5);opacity:.5}50%{transform:scaleY(1);opacity:1}}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* SECTIONS */
section{padding:90px 8%}
.section-label{font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--blue);font-weight:600;margin-bottom:12px}
.section-title{font-family:'Playfair Display',serif;font-size:clamp(28px,4vw,44px);color:var(--navy);font-weight:700;line-height:1.2;margin-bottom:16px}
.section-desc{color:var(--text-light);font-size:16px;line-height:1.8;max-width:580px;margin-bottom:56px}

/* ABOUT */
.about{background:var(--grey-light)}
.about-inner{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.about-text p{color:var(--text-light);font-size:16px;line-height:1.85;margin-bottom:16px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{background:white;border-radius:16px;padding:28px 20px;text-align:center;border:1px solid rgba(26,86,219,.08);box-shadow:0 4px 20px rgba(0,0,0,.06);transition:.3s}
.stat-card:hover{transform:translateY(-4px)}
.stat-num{font-family:'Playfair Display',serif;font-size:40px;font-weight:700;color:var(--blue);line-height:1;margin-bottom:8px}
.stat-label{font-size:13px;color:var(--text-light);font-weight:500}

/* NEWS */
.news-section{background:white}
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.news-card{background:white;border-radius:16px;border:1px solid rgba(0,0,0,.07);box-shadow:0 4px 16px rgba(0,0,0,.05);overflow:hidden;transition:.3s;cursor:pointer}
.news-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(26,86,219,.12)}
.news-card-img{height:160px;background:linear-gradient(135deg,var(--navy),#1a3a6b);display:flex;align-items:center;justify-content:center;font-size:40px;overflow:hidden}
.news-card-img img{width:100%;height:100%;object-fit:cover}
.news-card-body{padding:20px}
.news-card-tag{display:inline-block;padding:3px 12px;border-radius:20px;background:rgba(26,86,219,.1);color:var(--blue);font-size:11px;font-weight:600;margin-bottom:10px}
.news-card-title{font-weight:700;font-size:15px;color:var(--navy);margin-bottom:8px;line-height:1.4}
.news-card-date{font-size:12px;color:var(--grey)}

/* LABS */
.labs-section{background:var(--grey-light)}
.dept-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.dept-card{background:white;border-radius:16px;padding:32px 28px;border:1px solid rgba(26,86,219,.08);box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.3s;cursor:pointer;position:relative;overflow:hidden}
.dept-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--accent));transform:scaleX(0);transform-origin:left;transition:.3s}
.dept-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(26,86,219,.15)}
.dept-card:hover::before{transform:scaleX(1)}
.dept-icon{width:52px;height:52px;background:linear-gradient(135deg,rgba(26,86,219,.1),rgba(0,180,216,.1));border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px}
.dept-name{font-weight:700;font-size:17px;color:var(--navy);margin-bottom:8px}
.dept-name-en{font-size:13px;color:var(--blue);margin-bottom:12px;font-weight:500}
.dept-desc{font-size:14px;color:var(--text-light);line-height:1.7}

/* STAFF */
.staff-section{background:white}
.staff-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.filter-btn{padding:8px 20px;border-radius:20px;border:1px solid rgba(26,86,219,.25);background:white;color:var(--text-light);font-size:13px;cursor:pointer;transition:.2s;font-family:inherit}
.filter-btn.active,.filter-btn:hover{background:var(--blue);border-color:var(--blue);color:white}
.staff-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.staff-card{background:white;border-radius:16px;padding:28px 20px;text-align:center;border:1px solid rgba(0,0,0,.07);box-shadow:0 4px 16px rgba(0,0,0,.05);transition:.3s}
.staff-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(26,86,219,.12)}
.staff-avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--accent));display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px;color:white;font-weight:700;overflow:hidden}
.staff-avatar img{width:100%;height:100%;object-fit:cover}
.staff-name{font-weight:700;font-size:15px;color:var(--navy);margin-bottom:6px}
.staff-pos{font-size:13px;color:var(--blue);margin-bottom:4px;font-weight:500}
.staff-dept{font-size:12px;color:var(--grey);margin-bottom:12px}
.staff-email{font-size:12px;color:var(--text-light);display:flex;align-items:center;justify-content:center;gap:5px;text-decoration:none}

/* PROJECTS */
.projects-section{background:var(--grey-light)}
.projects-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.project-card{background:white;border-radius:16px;padding:32px;border:1px solid rgba(26,86,219,.08);box-shadow:0 4px 20px rgba(0,0,0,.05);transition:.3s;position:relative;overflow:hidden}
.project-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--accent));transform:scaleX(0);transform-origin:left;transition:.3s}
.project-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(26,86,219,.15)}
.project-card:hover::before{transform:scaleX(1)}
.project-tag{display:inline-block;padding:4px 12px;border-radius:20px;background:rgba(26,86,219,.1);color:var(--blue);font-size:11px;font-weight:600;margin-bottom:14px;letter-spacing:.5px;text-transform:uppercase}
.project-card h3{font-weight:700;font-size:16px;color:var(--navy);margin-bottom:10px;line-height:1.4}
.project-card p{font-size:14px;color:var(--text-light);line-height:1.7}

/* GALLERY */
.gallery-section{background:var(--grey-light)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:16px}
.gallery-item{border-radius:12px;overflow:hidden;position:relative;cursor:pointer;background:var(--navy)}
.gallery-item:nth-child(3n+1){grid-column:span 2;grid-row:span 2}
.gallery-placeholder{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--navy),#1a3a6b);color:rgba(255,255,255,.4);font-size:32px;gap:10px;transition:.3s}
.gallery-placeholder span{font-size:12px;letter-spacing:1px}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery-item:hover img{transform:scale(1.05)}
.gallery-overlay{position:absolute;inset:0;background:rgba(13,31,60,.7);display:flex;align-items:center;justify-content:center;opacity:0;transition:.3s;color:white;font-size:28px}
.gallery-item:hover .gallery-overlay{opacity:1}

/* CONTACT */
.contact-section{background:var(--navy)}
.contact-section .section-label{color:var(--accent)}
.contact-section .section-title{color:white}
.contact-section .section-desc{color:rgba(255,255,255,.55)}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact-form{display:flex;flex-direction:column;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group label{font-size:13px;color:rgba(255,255,255,.6);font-weight:500}
.form-group input,.form-group textarea{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:13px 16px;color:white;font-size:14px;font-family:inherit;outline:none;transition:.2s;resize:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent);background:rgba(255,255,255,.09)}
.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,.25)}
.submit-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,var(--blue),var(--blue-light));color:white;border:none;padding:15px 32px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:.3s;box-shadow:0 6px 24px rgba(26,86,219,.4);width:100%}
.submit-btn:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(26,86,219,.5)}
.contact-info{display:flex;flex-direction:column;gap:28px}
.info-item{display:flex;align-items:flex-start;gap:16px}
.info-icon{width:44px;height:44px;flex-shrink:0;background:rgba(26,86,219,.2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px}
.info-label{font-size:12px;color:var(--accent);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}
.info-val{color:rgba(255,255,255,.8);font-size:15px;line-height:1.5}

/* EDUCATION */
.education-section{background:white}
.edu-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.edu-quote{background:linear-gradient(135deg,var(--navy),#1a3a6b);border-radius:20px;padding:40px;color:white}
.edu-quote blockquote{font-family:'Playfair Display',serif;font-size:20px;line-height:1.5;font-style:italic;margin-bottom:16px}
.edu-quote cite{font-size:12px;opacity:.65;font-style:normal}
.edu-facts{display:flex;gap:32px;margin-top:32px;padding-top:32px;border-top:1px solid rgba(255,255,255,.15)}
.edu-fact-num{font-family:'Playfair Display',serif;font-size:36px;color:var(--accent);line-height:1}
.edu-fact-label{font-size:12px;color:rgba(255,255,255,.6);margin-top:4px}

/* FOOTER */
footer{background:#060f1e;padding:48px 8% 28px;border-top:1px solid rgba(255,255,255,.06)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-brand p{color:rgba(255,255,255,.4);font-size:14px;line-height:1.7;margin-top:16px}
.footer-col h4{color:white;font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.4);text-decoration:none;font-size:13.5px;margin-bottom:10px;transition:.2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:24px;display:flex;justify-content:space-between;align-items:center;color:rgba(255,255,255,.3);font-size:13px}

/* REVEAL */
.reveal{opacity:0;transform:translateY(30px);transition:all .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* EMPTY STATE */
.empty-placeholder{text-align:center;padding:60px 20px;color:var(--text-light)}
.empty-placeholder .ep-icon{font-size:48px;margin-bottom:16px}

/* LANG */
.lang-en [data-ka]{display:none!important}
.lang-ka [data-en]{display:none!important}

/* MOBILE */
@media(max-width:900px){
  header{padding:0 20px}
  nav{display:none}
  .about-inner,.contact-inner,.edu-grid,.projects-grid{grid-template-columns:1fr;gap:40px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-item:nth-child(3n+1){grid-column:span 1;grid-row:span 1}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  section{padding:60px 5%}
}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:white;border-radius:2px;transition:.3s}
@media(max-width:900px){.hamburger{display:flex}}

/* ADMIN BADGE */
.admin-link{position:fixed;bottom:20px;right:20px;z-index:999;background:rgba(13,31,60,.9);color:rgba(255,255,255,.5);text-decoration:none;font-size:11px;padding:8px 14px;border-radius:20px;letter-spacing:.5px;transition:.2s;border:1px solid rgba(255,255,255,.1)}
.admin-link:hover{color:var(--accent);border-color:var(--accent)}