*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}:root{--primary-color:#1daa82;--accent-color:#6d9dc5;--second-color:#1daa82;--dark-color:#004080;--wine:#800020;--dark-wine:#4b001c;--light-color:#f5f8fa;--gradient-bg:linear-gradient(135deg,var(--dark-color),var(--primary-color));--box-shadow:0 8px 30px rgba(0,64,128,.1)}body{line-height:1.6;color:#333;background-color:var(--light-color);overflow-x:hidden}.container{max-width:1400px;margin:0 auto;padding:0 2rem}header{background:var(--gradient-bg);color:#fff;position:relative;overflow:hidden}.header-content{display:flex;padding:4rem 0;position:relative;z-index:2}.header-text{flex:1 1}.header-image{flex:1 1;justify-content:flex-end}.header-image,.profile-image{display:flex;align-items:center}.profile-image{width:300px;height:300px;border-radius:50%;box-shadow:var(--box-shadow);justify-content:center;overflow:hidden}.profile-image img{width:100%;height:100%;object-fit:cover}.header-placeholder{width:300px;height:300px;background-color:var(--accent-color);border-radius:50%;display:flex;justify-content:center;align-items:center;font-size:6rem;color:#fff}.header-content h1{font-size:3rem;margin-bottom:1rem;line-height:1.2}.header-subtitle{font-size:1.5rem;margin-bottom:2rem;opacity:.9}.header-stats{display:flex;margin-top:2rem;gap:2rem}.stat-item{text-align:center;opacity:.9}.stat-number{font-size:2.5rem;font-weight:700}.stat-label{font-size:.9rem;opacity:.8}.particles{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}@keyframes float{0%{transform:translate(0) scale(1)}50%{transform:translate(var(--x),var(--y)) scale(1.2)}to{transform:translate(0) scale(1)}}.particle{position:absolute;background-color:hsla(0,0%,100%,.1);border-radius:50%;opacity:.6;animation:float ease-in-out infinite}nav{background:linear-gradient(90deg,#4b001c,#800020,#b22222);padding:0;opacity:.85;box-shadow:var(--box-shadow);z-index:100}nav.main-nav{position:-webkit-sticky;position:sticky;top:0}nav a.active{color:var(--primary-color);font-weight:700}nav a.active:after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background-color:var(--primary-color);transition:width .3s ease}nav ul{display:flex;list-style:none;justify-content:center;max-width:1400px;margin:0 auto}nav li{position:relative}nav a{display:block;color:var(--light-color);text-decoration:none;text-transform:uppercase;font-weight:600;letter-spacing:1px;padding:1.5rem 2rem;transition:all .3s ease}nav a:hover{color:var(--primary-color)}nav a:after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background-color:var(--primary-color);transition:width .3s ease}nav a:hover:after{width:60%}.nav-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;margin-right:8px}.nav-text{display:inline-block}.cv-button-all-Pub{background:var(--gradient-bg)}.cv-button,.cv-button-all-Pub{display:inline-block;color:#fff;padding:.8rem 2rem;border-radius:50px;text-decoration:none;font-weight:600;box-shadow:var(--box-shadow);transition:transform .3s ease,box-shadow .3s ease;text-transform:uppercase;letter-spacing:1px}.cv-button{background:hsla(0,0%,100%,.1);opacity:.9}.cv-button:hover{background-color:#fff;color:var(--primary-color);transform:translateY(-5px);font-weight:bolder;transform:translateY(-3px);box-shadow:0 10px 20px rgba(0,64,128,.2)}.section{padding:6rem 0}.section-header{text-align:center;margin-bottom:4rem}.section-title{font-size:2.5rem;color:var(--dark-color);position:relative;display:inline-block;margin-bottom:1.5rem}.section-title:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translateX(-50%);width:50px;height:3px;background-color:var(--primary-color)}.section-subtitle{color:var(--accent-color);font-size:1.2rem;max-width:700px;margin:0 auto}.about-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:4rem;gap:4rem;align-items:center}.about-content{padding-right:2rem}.about-content p{margin-bottom:1.5rem;font-size:1.1rem;line-height:1.8}.expertise-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:1.5rem;gap:1.5rem}.expertise-card{background-color:#fff;padding:1.5rem;border-radius:10px;box-shadow:var(--box-shadow);text-align:center;transition:transform .3s ease}.expertise-card:hover{transform:translateY(-10px)}.expertise-icon{font-size:2.5rem;color:var(--primary-color);margin-bottom:1rem}.timeline{position:relative;max-width:900px;margin:0 auto}.timeline:before{content:"";position:absolute;height:100%;width:3px;background-color:var(--accent-color);left:50%;transform:translateX(-50%)}.timeline-item{position:relative;margin-bottom:4rem}.timeline-item:nth-child(odd){padding-right:calc(50% + 2rem)}.timeline-item:nth-child(2n){padding-left:calc(50% + 2rem)}.timeline-dot{position:absolute;width:25px;height:25px;background-color:var(--primary-color);border-radius:50%;top:0;left:50%;transform:translateX(-50%);box-shadow:var(--box-shadow)}.timeline-content{background-color:#fff;padding:2rem;border-radius:10px;box-shadow:var(--box-shadow);position:relative}.timeline-content h3{color:var(--dark-color);margin-bottom:.5rem;font-size:1.3rem}.timeline-date{font-size:.9rem;color:var(--accent-color);font-weight:600;margin-bottom:1rem}.research-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:2rem;gap:2rem}.research-card{background-color:#fff;border-radius:10px;overflow:hidden;box-shadow:var(--box-shadow);transition:transform .3s ease}.research-card:hover{transform:translateY(-10px)}.research-image{height:200px;background-color:var(--second-color);display:flex;justify-content:center;align-items:center;color:#fff;font-size:3rem}.research-content{padding:2rem}.research-content h3{color:var(--dark-color);margin-bottom:1rem;font-size:1.3rem}.publications-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:2rem;gap:2rem}.publication-card{background-color:#fff;border-radius:10px;padding:2rem;box-shadow:var(--box-shadow);transition:transform .3s ease;display:flex;flex-direction:column}.publication-card:hover{transform:translateY(-5px)}.publication-journal{color:var(--accent-color);font-weight:600;font-size:.9rem;margin-bottom:.5rem}.publication-title{color:var(--dark-color);margin-bottom:1rem;font-size:1.3rem}.publication-citation{font-size:.9rem;color:#666;margin-top:auto;padding-top:1rem;border-top:1px solid #eee}.publication-view{color:var(--primary-color);margin-top:1rem;text-decoration:none;font-weight:600;display:inline-block}.contact-section{background:var(--gradient-bg);color:#fff;padding:6rem 0}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:4rem;gap:4rem}.contact-info h2{margin-bottom:2rem;font-size:2.5rem}.contact-info p{margin-bottom:1.5rem;font-size:1.1rem;opacity:.9}.contact-links{display:flex;gap:1.5rem;margin-top:2rem}.contact-link{width:50px;height:50px;border-radius:50%;background-color:hsla(0,0%,100%,.1);display:flex;justify-content:center;align-items:center;color:#fff;text-decoration:none;transition:all .3s ease}.contact-link:hover{background-color:#fff;color:var(--primary-color);transform:translateY(-5px)}.contact-form{background-color:#fff;padding:3rem;border-radius:10px;box-shadow:var(--box-shadow)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:#333}.form-control{width:100%;padding:.8rem;border:1px solid #ddd;border-radius:5px;font-size:1rem}.form-control:focus{outline:none;border-color:var(--accent-color)}textarea.form-control{min-height:250px;resize:vertical}.submit-button{background:var(--gradient-bg);color:#fff;border:none;padding:1rem 2rem;border-radius:50px;font-weight:600;cursor:pointer;transition:all .3s ease;width:100%}.submit-button:hover{box-shadow:0 10px 20px rgba(0,64,128,.2)}.chatbot-button{position:fixed;bottom:30px;right:30px;width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color) 0,var(--accent-color) 100%);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 5px 15px rgba(0,0,0,.2);z-index:1000;transition:all .3s cubic-bezier(.68,-.55,.265,1.55)}.chatbot-icon{transition:var(--transition)}.chatbot-button:hover{transform:scale(1.1);box-shadow:0 8px 25px rgba(0,0,0,.25)}.chatbot-button:hover .chatbot-tooltip{visibility:visible;opacity:1;transform:translateX(-10px)}.chatbot-tooltip{position:absolute;right:75px;background-color:#fff;color:var(--accent-color);padding:12px 20px;border-radius:12px;font-size:.9em;min-width:250px;box-shadow:0 5px 15px rgba(0,0,0,.1);visibility:hidden;opacity:0;transform:translateX(20px);transition:all .3s ease}.chatbot-tooltip.is-visible{visibility:visible;opacity:1;transform:translateX(-10px)}.chatbot-tooltip:after{content:"";position:absolute;top:50%;right:-10px;transform:translateY(-50%);width:0;height:0;border-top:10px solid transparent;border-bottom:10px solid transparent;border-left:10px solid #fff}.chatbot-tooltip p{margin:0;font-weight:500}.chatbot-pulse{position:absolute;width:100%;height:100%;border-radius:50%;background-color:var(--dark-color);opacity:.6;animation:pulse 2s infinite}@keyframes pulse{0%{transform:scale(1);opacity:.6}70%{transform:scale(1.3);opacity:0}to{transform:scale(1.3);opacity:0}}#chat-widget-container{position:fixed;bottom:20px;right:20px;width:350px;height:500px;background:#fff;border-radius:12px;box-shadow:0 4px 10px rgba(0,0,0,.1);display:none;flex-direction:column;z-index:1000;overflow:hidden}#chat-widget-header{background:var(--second-color);color:#fff;padding:20px;font-weight:700;display:flex;justify-content:space-between;align-items:center;font-size:18px}#chat-widget-header>button{background-color:transparent;color:#fff;border-radius:10%;border:none;font-size:medium}#chat-widget-body{flex:1 1;padding:20px;overflow-y:auto}#chat-widget-body p{margin-bottom:15px;padding:12px;border-radius:8px;font-size:14px;word-wrap:break-word}#chat-widget-footer{padding:12px;border-top:1px solid #ddd;display:flex;gap:10px}#chat-widget-input{flex:1 1;padding:8px;border:1px solid #ddd;border-radius:8px;outline:none}#chat-widget-send{background:var(--dark-color);color:#fff;border:none;padding:8px 16px;border-radius:8px;cursor:pointer}#chat-widget-send:disabled{opacity:.6;cursor:not-allowed}.chat-typing-indicator{display:flex;align-items:center;gap:6px;padding:10px 16px 16px;color:#666;font-size:13px}.chat-typing-dot{width:6px;height:6px;border-radius:50%;background:var(--dark-color);display:inline-block;animation:chatTyping 1.2s ease-in-out infinite}.chat-typing-dot:nth-child(2){animation-delay:.2s}.chat-typing-dot:nth-child(3){animation-delay:.4s}.chat-typing-text{margin-left:6px}@keyframes chatTyping{0%{opacity:.2;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}to{opacity:.2;transform:translateY(0)}}footer{background-color:var(--dark-color);color:#fff;padding:2rem 0;text-align:center}.footer-content{max-width:600px;margin:0 auto}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate{animation:fadeIn .8s ease forwards}.admin-page{min-height:100vh;background:#f5f8fa;padding:3rem 0}.admin-container{max-width:1100px;margin:0 auto;padding:0 2rem}.admin-card{background:#fff;border-radius:14px;box-shadow:var(--box-shadow);padding:2rem}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem}.admin-header-actions{display:flex;align-items:center;gap:.75rem}.admin-tabs-actions{display:flex;align-items:center;gap:.6rem;margin-left:auto}.admin-header h1{font-size:2rem;color:var(--dark-color)}.admin-tabs{display:flex;gap:.35rem;flex-wrap:nowrap;overflow-x:auto;padding:.35rem;margin-bottom:2rem;background:#eef3f9;border-radius:999px;border:1px solid #e1e7ef}.admin-tab{border:none;background:transparent;color:#204060;padding:.55rem 1rem;border-radius:999px;font-weight:600;cursor:pointer;white-space:nowrap}.admin-tab.active{background:#fff;color:#0b2b44;box-shadow:0 6px 16px rgba(0,0,0,.08)}.admin-tabs-sticky{position:-webkit-sticky;position:sticky;top:0;z-index:150;box-shadow:none}.admin-form{display:grid;grid-gap:1.25rem;gap:1.25rem}.admin-field{display:flex;flex-direction:column;gap:.5rem}.admin-field label{font-weight:600;color:#204060}.admin-field input,.admin-field select,.admin-field textarea{padding:.7rem .9rem;border:1px solid #d0d7e2;border-radius:8px;font-size:1rem}.admin-field textarea{min-height:250px}.admin-list{display:grid;grid-gap:1rem;gap:1rem}.admin-list-item{border:1px solid #e6eaf1;border-radius:12px;padding:1rem;background:#fbfcfe}.admin-item-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem;flex-wrap:wrap}.admin-item-title{font-weight:600;color:#204060;flex:1 1 auto;min-width:180px}.admin-icon-picker,.admin-item-actions{display:flex;gap:.5rem}.admin-icon-picker{flex-wrap:wrap}.admin-icon-button{width:40px;height:40px;border-radius:10px;border:1px solid #d0d7e2;background:#fff;color:#204060;display:flex;align-items:center;justify-content:center;cursor:pointer}.admin-icon-button.selected{border-color:#2e7d32;box-shadow:0 0 0 2px rgba(46,125,50,.2)}.admin-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:2000;padding:1.5rem}.admin-modal{background:#fff;border-radius:14px;padding:1.5rem;width:100%;max-width:420px;box-shadow:0 20px 60px rgba(0,0,0,.2)}.admin-modal h3{margin-bottom:.5rem;color:#204060}.admin-modal p{margin-bottom:1.5rem;color:#333}.admin-modal-actions{display:flex;justify-content:flex-end;gap:.75rem}.admin-toast{position:fixed;right:24px;bottom:24px;background:#1e293b;color:#fff;padding:16px 18px 18px;border-radius:12px;box-shadow:0 16px 40px rgba(0,0,0,.25);display:grid;grid-template-columns:1fr auto;grid-gap:12px;gap:12px;z-index:2100;width:min(420px,92vw)}.admin-toast.success{background:#2e7d32}.admin-toast.error{background:#b22222}.admin-toast.info{background:#1d4ed8}.admin-toast-close{background:transparent;border:none;color:#fff;font-size:18px;cursor:pointer}.admin-toast-content{display:grid;grid-gap:6px;gap:6px}.admin-toast-title{font-size:.95rem;font-weight:700}.admin-toast-message{font-size:.9rem;opacity:.9}.admin-toast-progress{grid-column:1/-1;height:4px;border-radius:999px;background:hsla(0,0%,100%,.2);overflow:hidden;position:relative}.admin-toast-progress:after{content:"";position:absolute;inset:0;background:hsla(0,0%,100%,.7);transform-origin:left;animation:toastProgress 3.5s linear forwards}@keyframes toastProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.admin-list-actions{display:flex;gap:.75rem;margin-top:.75rem}.admin-button{border:none;border-radius:999px;padding:.6rem 1.2rem;font-weight:600;cursor:pointer}.admin-button:disabled{opacity:.6;cursor:not-allowed}.admin-button.primary{background:#2e7d32;color:#fff}.admin-button.secondary{background:#e8eef6;color:#204060}.admin-button.danger{background:#b22222;color:#fff}.admin-status{font-weight:600;margin-top:1rem}.admin-login{max-width:400px;margin:0 auto;background:#fff;padding:2rem;border-radius:14px;box-shadow:var(--box-shadow)}@media (max-width:1200px){.publications-grid,.research-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.header-content{flex-direction:column-reverse;text-align:center;padding:3rem 0}.header-image{margin-bottom:2rem}.header-image,.header-stats{justify-content:center}.about-grid{grid-template-columns:1fr;gap:2rem}.timeline:before{left:30px}.timeline-item:nth-child(2n),.timeline-item:nth-child(odd){padding-left:80px;padding-right:0}.timeline-dot{left:30px}}@media (max-width:768px){nav.main-nav{max-height:100px;position:fixed!important;top:auto!important;bottom:12px!important}body{padding-bottom:100px}nav.main-nav{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);width:min(92vw,520px);border-radius:14px;background:linear-gradient(180deg,rgba(22,29,44,.9),rgba(8,12,20,.92));padding:6px 10px calc(6px + env(safe-area-inset-bottom));box-shadow:0 12px 30px rgba(0,0,0,.35);border:1px solid hsla(0,0%,100%,.08);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:.98;display:flex;justify-content:center;align-items:center;height:auto}nav.main-nav ul{flex-direction:row;justify-content:space-between;padding:0;gap:8px;height:auto}nav.main-nav li{flex:1 1}nav.main-nav a{padding:.75rem .6rem;display:flex;flex-direction:column;align-items:center;gap:.35rem;font-size:.7rem;letter-spacing:.5px;border-radius:16px;color:hsla(0,0%,100%,.75);position:relative}nav.main-nav a.active{color:#fff;background:transparent}nav.main-nav a.active .nav-icon{background:rgba(46,125,50,.25);box-shadow:0 0 0 1px rgba(46,125,50,.45),0 8px 18px rgba(46,125,50,.35);color:#d1f7d9}nav.main-nav a.active[data-section=about] .nav-icon{background:rgba(29,170,130,.25);box-shadow:0 0 0 1px rgba(29,170,130,.45),0 8px 18px rgba(29,170,130,.35);color:#b8f2e6}nav.main-nav a.active[data-section=education] .nav-icon{background:rgba(45,108,223,.25);box-shadow:0 0 0 1px rgba(45,108,223,.45),0 8px 18px rgba(45,108,223,.35);color:#cfe1ff}nav.main-nav a.active[data-section=research] .nav-icon{background:rgba(255,111,67,.25);box-shadow:0 0 0 1px rgba(255,111,67,.45),0 8px 18px rgba(255,111,67,.35);color:#ffd6c8}nav.main-nav a.active[data-section=publications] .nav-icon{background:rgba(138,92,246,.25);box-shadow:0 0 0 1px rgba(138,92,246,.45),0 8px 18px rgba(138,92,246,.35);color:#e2d4ff}nav.main-nav a.active[data-section=contact] .nav-icon{background:rgba(255,204,87,.28);box-shadow:0 0 0 1px rgba(255,204,87,.5),0 8px 18px rgba(255,204,87,.35);color:#fff4c2}nav.main-nav .nav-text,nav.main-nav a:after,nav.main-nav a:hover:after{display:none}.nav-icon{width:40px;height:40px;border-radius:50%;background:hsla(0,0%,100%,.08);box-shadow:inset 0 0 0 1px hsla(0,0%,100%,.08);margin:0}.nav-text{text-transform:none}.publications-grid,.research-grid{grid-template-columns:1fr}.section{padding:4rem 0}.expertise-cards{grid-template-columns:1fr 1fr}.contact-grid{grid-template-columns:1fr}.contact-form{padding:2rem}.chatbot-button{bottom:120px}}html{scroll-behavior:smooth}