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.greeting{font-size:1.3rem;color:var(--accent-color);font-family:var(--font-heading);margin-bottom:.75rem;text-shadow:0 0 6px var(--accent-glow);animation-delay:.1s}html[dir=rtl] #home .greeting{font-family:var(--font-heading-ar)}#home h1{font-size:clamp(2.5rem,8vw,4.5rem);font-weight:800;color:var(--primary-text);margin-bottom:1rem;line-height:1.1;background:linear-gradient(135deg,var(--primary-text) 0%,var(--accent-color) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}#home .tagline{font-size:clamp(1.5rem,4vw,2rem);color:var(--secondary-text);margin-bottom:1.5rem;font-weight:300;max-width:70ch}#home .intro-text{font-size:1.1rem;color:var(--secondary-text);max-width:65ch;margin-bottom:2rem;line-height:1.6}#home .cta-buttons{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2rem;align-items:center}.glass-panel{background-color:var(--glass-bg);backdrop-filter:blur(var(--blur-strength));-webkit-backdrop-filter:blur(var(--blur-strength));border:1px solid var(--glass-border-color);border-radius:var(--border-radius-main);padding:2rem;box-shadow:0 8px 32px 0 var(--shadow-soft-color),inset 0 1px 1px var(--glass-highlight);transition:transform .4s cubic-bezier(.4,0,.2,1),box-shadow .4s cubic-bezier(.4,0,.2,1),background-color var(--theme-transition-duration) var(--theme-transition-timing),border-color var(--theme-transition-duration) var(--theme-transition-timing);position:relative;will-change:transform,box-shadow,border-color;overflow:hidden}.glass-panel:hover{transform:translateY(-10px);box-shadow:0 16px 40px var(--shadow-hover-color),0 0 10px var(--accent-glow);border-color:var(--accent-color)}.glass-panel:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(110deg,transparent 40%,var(--glass-highlight) 50%,transparent 60%);background-size:250% 100%;background-position:150% 0;opacity:0;transition:background-position .8s cubic-bezier(.19,1,.22,1),opacity .5s;pointer-events:none;z-index:1}.glass-panel:hover:before{opacity:1;background-position:-50% 0}.glass-panel>*{position:relative;z-index:2}#about .about-content{display:grid;grid-template-columns:2fr 1fr;gap:2.5rem;align-items:start}html[dir=rtl] #about .about-content{text-align:right}#about .about-text h3{margin-top:2rem;color:var(--accent-color)}#about .about-text h3:first-child{margin-top:0}#about .about-text ul li{padding-left:1.2rem;position:relative;margin-bottom:.5rem}#about .about-text ul li:before{content:"•";position:absolute;left:0;color:var(--accent-color);font-size:1.2em;text-shadow:0 0 4px var(--accent-glow)}html[dir=rtl] #about .about-text ul li{padding-left:0;padding-right:1.2rem}html[dir=rtl] #about .about-text ul li:before{left:auto;right:0}#about .language-name{font-weight:500;color:var(--primary-text);margin-right:.5rem}html[dir=rtl] #about .language-name{margin-right:0;margin-left:.5rem}#about .about-image-container{aspect-ratio:1 / 1.2;display:flex;justify-content:center;align-items:center;text-align:center;overflow:hidden;border-radius:var(--border-radius-main);background:linear-gradient(135deg,#00a6ff1a,#8a2be21a);box-shadow:0 8px 32px var(--shadow-color),0 0 20px var(--accent-glow);transition:transform var(--transition-speed),box-shadow var(--transition-speed);position:relative}#about .about-image-container:hover{transform:scale(1.05) rotate(2deg);box-shadow:0 12px 48px var(--shadow-hover-color),0 0 30px var(--accent-glow)}#about .profile-photo{width:100%;height:100%;object-fit:cover;object-position:center;border-radius:var(--border-radius-main);transition:transform var(--transition-speed)}#about .about-image-container:hover .profile-photo{transform:scale(1.1)}#about .about-image-placeholder{aspect-ratio:1 / 1.2;display:flex;justify-content:center;align-items:center;text-align:center;color:var(--secondary-text);border:2px dashed var(--glass-border-color);border-radius:var(--border-radius-main);transition:border-color var(--transition-speed),box-shadow var(--transition-speed)}#about .about-image-placeholder:hover{border-color:var(--accent-color);box-shadow:0 0 12px var(--accent-glow)}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-top:2.5rem}.skill-category{padding:1.5rem}html[dir=rtl] .skill-category{text-align:right}.skill-category h3{color:var(--accent-color);margin-bottom:1rem;border-bottom:1px solid var(--glass-border-color);padding-bottom:.75rem;text-shadow:0 0 4px var(--accent-glow)}.skill-items-container{display:flex;flex-wrap:wrap;gap:.75rem}.skill-item{background:rgba(var(--primary-bg-raw),.5);backdrop-filter:blur(4px);border:1px solid var(--glass-border-color);color:var(--secondary-text);padding:.45rem 1rem;border-radius:var(--border-radius-pill);font-size:.9rem;font-weight:500;transition:all .3s cubic-bezier(.4,0,.2,1);cursor:default}.skill-item:hover{color:var(--primary-text);background:#00a6ff26;border-color:var(--accent-color);transform:translateY(-3px);box-shadow:0 0 5px var(--accent-glow)}.timeline{position:relative;max-width:750px;margin:2rem auto 0}.timeline:before{content:"";position:absolute;left:15px;top:15px;bottom:15px;width:3px;background-color:var(--glass-border-color);border-radius:3px}html[dir=rtl] .timeline:before{left:auto;right:15px}.timeline-item{padding:1.5rem 1.5rem 1.5rem 50px;position:relative;margin-bottom:1.5rem}html[dir=rtl] .timeline-item{padding-left:1.5rem;padding-right:50px}.timeline-item:before{content:"";position:absolute;left:15px;top:30px;transform:translate(-50%,-50%);width:20px;height:20px;border-radius:50%;background-color:var(--accent-color);border:4px solid var(--primary-bg);z-index:1;box-shadow:0 0 8px var(--accent-glow)}html[dir=rtl] .timeline-item:before{left:auto;right:15px;transform:translate(50%,-50%)}.timeline-item h3{font-size:1.3rem;margin-bottom:.25rem;color:var(--primary-text)}.timeline-item .company-date{font-size:.9rem;color:var(--accent-color);margin-bottom:1rem}.timeline-item ul li{margin-bottom:.5rem;padding-left:1rem;position:relative}.timeline-item ul li:before{content:"▹";position:absolute;left:0;color:var(--accent-color)}html[dir=rtl] .timeline-item ul li{padding-left:0;padding-right:1rem}html[dir=rtl] .timeline-item ul li:before{left:auto;right:0}.project-card,.certificate-card{padding:1.5rem;display:flex;flex-direction:column}.project-card h3{margin-bottom:.5rem;color:var(--primary-text)}.project-card .description{flex-grow:1}.project-card .tech-stack{margin-bottom:1.5rem;margin-top:1rem;display:flex;flex-wrap:wrap;gap:.5rem}.project-card .tech-stack span{background-color:#00a6ff1a;color:var(--accent-color);padding:.35rem .8rem;border-radius:var(--border-radius-pill);font-size:.8rem;font-weight:500}.project-card .project-links{margin-top:auto;padding-top:1rem;border-top:1px solid var(--glass-border-color)}.project-card .project-links a{margin-right:1rem;font-size:.9rem;display:inline-flex;align-items:center;color:var(--secondary-text)}.project-card .project-links a:hover{color:var(--accent-color)}.project-card .project-links svg{width:18px;height:18px;margin-right:6px;fill:currentColor}html[dir=rtl] .project-card .project-links svg{margin-right:0;margin-left:6px}#publications .publication-container{max-width:800px;margin:0 auto}.publication-card{padding:2.5rem}.publication-card h3{color:var(--primary-text)}.publication-authors{font-style:italic;color:var(--secondary-text);font-size:.95rem}.publication-journal{font-weight:500;margin-bottom:1rem}.publication-abstract{margin-bottom:2rem;border-left:3px solid var(--accent-color);padding-left:1rem;font-size:.95rem;opacity:.9}html[dir=rtl] .publication-abstract{border-left:none;border-right:3px solid var(--accent-color);padding-left:0;padding-right:1rem}.publication-card .btn{margin-top:auto;align-self:flex-start}html[dir=rtl] .publication-card .btn{align-self:flex-end}.certificate-card{padding:0;cursor:pointer}.certificate-card:focus-visible{outline:none;transform:translateY(-8px);box-shadow:0 0 0 2px var(--primary-bg),0 0 0 4px var(--accent-color)}.certificate-image-container{aspect-ratio:1.414 / 1;display:flex;justify-content:center;align-items:center;background-color:rgba(var(--primary-bg-raw),.3);border-bottom:1px solid var(--glass-border-color);border-top-left-radius:var(--border-radius-main);border-top-right-radius:var(--border-radius-main);overflow:hidden;position:relative}.certificate-image{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-speed),filter var(--transition-speed)}.certificate-card:hover .certificate-image,.certificate-card:focus-visible .certificate-image{transform:scale(1.05);filter:brightness(1.1) contrast(1.05)}.certificate-image-placeholder{aspect-ratio:1.414 / 1;display:flex;justify-content:center;align-items:center;background-color:rgba(var(--primary-bg-raw),.3);border-bottom:1px solid var(--glass-border-color);border-top-left-radius:var(--border-radius-main);border-top-right-radius:var(--border-radius-main)}.certificate-image-placeholder svg{color:var(--secondary-text);opacity:.5;transition:color var(--transition-fast),opacity var(--transition-fast),transform var(--transition-fast)}.certificate-card:hover .certificate-image-placeholder svg,.certificate-card:focus-visible .certificate-image-placeholder svg{color:var(--accent-color);opacity:.8;transform:scale(1.1)}.certificate-info{padding:1.5rem}.certificate-info h3{font-size:1.1rem;margin-bottom:.4rem;color:var(--primary-text)}.certificate-info .date{font-size:.85rem;color:var(--accent-color);font-weight:500;margin-bottom:0}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes modalFadeOut{0%{opacity:1}to{opacity:0}}@keyframes modalSlideDown{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(30px) scale(.95)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.modal-overlay{position:fixed!important;inset:0!important;width:100vw!important;height:100vh!important;transform:none!important;background:#0000;z-index:9998;backdrop-filter:blur(0px);-webkit-backdrop-filter:blur(0px);display:flex!important;justify-content:center!important;align-items:center!important;padding:2rem;overflow-y:auto;opacity:0;transition:opacity .25s ease,backdrop-filter .25s ease;-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain}.modal-overlay.modal-visible{opacity:1;background:#0009;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:12px;box-shadow:0 4px 24px #00000026;max-width:900px;max-height:90vh;width:100%;position:relative!important;display:flex;flex-direction:column;overflow:hidden;opacity:0;transform:translateY(20px)!important;transition:opacity .3s ease,transform .3s ease;margin:auto}.modal-content.modal-content-visible{opacity:1;transform:translateY(0)!important}@media (prefers-color-scheme: dark){.modal-content{background:#1a1a1a;border:1px solid rgba(255,255,255,.1);box-shadow:0 4px 24px #0006}}.modal-image-container{position:relative;width:100%;min-height:300px;background:#f8f9fa;display:flex;align-items:center;justify-content:center}.modal-image{width:100%;height:auto;object-fit:contain;max-height:calc(90vh - 180px);display:block;opacity:0;transition:opacity .3s ease}.modal-image.modal-image-loaded{opacity:1}@media (prefers-color-scheme: dark){.modal-image-container{background:#0f0f0f}}.modal-image-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center}.spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.1);border-top-color:var(--accent-color);border-radius:50%;animation:spin .8s linear infinite}.modal-info{padding:2rem 2.5rem;text-align:center;background:#fff;border-top:1px solid #e5e7eb}.modal-title{margin:0 0 .75rem;color:#111827;font-family:var(--font-heading);font-size:1.25rem;font-weight:600;line-height:1.5;letter-spacing:-.01em}.modal-description{margin:0;color:#6b7280;font-size:.875rem;display:flex;align-items:center;justify-content:center;gap:.5rem;flex-wrap:wrap;line-height:1.5}.modal-issuer{font-weight:500;color:#374151}.modal-date{color:#6b7280;font-weight:400}.modal-separator{color:#d1d5db;opacity:1}@media (prefers-color-scheme: dark){.modal-info{background:#1a1a1a;border-top:1px solid rgba(255,255,255,.1)}.modal-title{color:#f9fafb}.modal-description{color:#9ca3af}.modal-issuer{color:#d1d5db}.modal-date{color:#9ca3af}.modal-separator{color:#4b5563}}html[dir=rtl] .modal-issuer,html[dir=rtl] .modal-date{flex-direction:row-reverse}html[dir=rtl] .modal-title{font-family:var(--font-heading-ar)}html[dir=rtl] .modal-description{font-family:var(--font-body-ar)}.modal-close-btn{position:absolute;top:12px;right:12px;background:#000000bf;border:none;border-radius:8px;color:#fff;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;z-index:100;padding:0;box-shadow:0 2px 8px #0003}.modal-close-btn:hover{background:#000000e6;box-shadow:0 4px 12px #0000004d}.modal-close-btn:focus{outline:2px solid #ffffff;outline-offset:2px}.modal-close-btn:active{transform:scale(.95)}.modal-close-btn svg{width:22px;height:22px;stroke-width:2.5}@media (prefers-color-scheme: dark){.modal-close-btn{background:#ffffffe6;color:#111827}.modal-close-btn:hover{background:#fff}.modal-close-btn:focus{outline-color:#111827}}#contact .contact-content{max-width:800px;margin:0 auto;text-align:center}#contact .contact-intro{margin-left:auto;margin-right:auto}.contact-form{margin-top:2rem;text-align:left}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.form-group{margin-bottom:1.5rem;display:flex;flex-direction:column}.form-group.full-width{grid-column:1 / -1}.form-group label{margin-bottom:.5rem;font-weight:500;color:var(--secondary-text)}.form-group input,.form-group textarea{width:100%;padding:1rem;border-radius:var(--border-radius-medium);border:1px solid var(--glass-border-color);background:rgba(var(--primary-bg-raw),.5);color:var(--primary-text);font-family:var(--font-body);font-size:1rem;transition:all var(--transition-speed);box-shadow:inset 0 2px 4px var(--shadow-soft-color)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 8px -1px var(--accent-glow),inset 0 2px 4px var(--shadow-soft-color)}.contact-form .btn{width:100%;margin-top:1rem}.contact-form-success{text-align:center;padding:3rem 2rem}.contact-form-success h3{color:var(--accent-color);margin-bottom:1rem}.contact-form-success p{margin-bottom:2rem}.social-links{margin-top:3rem}.social-links h3{color:var(--primary-text)}.social-links a{display:inline-block;margin:0 .75rem;color:var(--secondary-text);transition:transform var(--transition-speed),color var(--transition-speed);will-change:transform;cursor:pointer}.social-links a:hover,.social-links a:focus-visible{color:var(--accent-color);transform:scale(1.2) translateY(-3px)}.social-links svg{width:var(--social-icon-size, 30px);height:var(--social-icon-size, 30px);fill:currentColor}.social-links a:hover svg{cursor:pointer}.form-group input.invalid,.form-group textarea.invalid{border-color:#ef444480;box-shadow:none}.error-message{color:#ef4444d9;font-size:.75rem;margin-top:.375rem;margin-bottom:0;font-weight:400;opacity:.9}.character-count{display:block;text-align:right;font-size:.7rem;color:var(--secondary-text);margin-top:.25rem;opacity:.5;transition:opacity var(--transition-speed),color var(--transition-speed)}.form-group textarea:focus+.character-count{opacity:.7}.form-group input:focus-visible,.form-group textarea:focus-visible{outline:2px solid var(--accent-color);outline-offset:2px}.source-hint{opacity:.7;font-size:.9em;font-style:italic;color:rgba(var(--accent-color),.8)}.skills-focus{text-align:center;margin-bottom:2rem;font-style:italic;color:var(--secondary-text);opacity:.8}.priority-sections{text-align:center;margin-top:2.5rem;padding:2rem;background:var(--glass-bg);backdrop-filter:blur(var(--blur-strength));border:1px solid var(--glass-border-color);border-radius:var(--border-radius-main);box-shadow:0 4px 15px var(--shadow-soft-color);position:relative;will-change:transform,box-shadow;transform:translateZ(0);-webkit-transform:translate3d(0,0,0);-webkit-backface-visibility:hidden;backface-visibility:hidden;z-index:1;overflow:visible}.priority-sections:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(0,166,255,.03) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(0,166,255,.02) 0%,transparent 50%);pointer-events:none;z-index:0;border-radius:var(--border-radius-main)}.priority-sections>*{position:relative;z-index:1}.priority-sections h3{color:var(--accent-color);margin-bottom:1.5rem;font-size:1.2rem;font-weight:600;text-shadow:0 0 4px var(--accent-glow);position:relative}.priority-sections h3:after{content:"";position:absolute;bottom:-.5rem;left:50%;transform:translate(-50%);width:60px;height:2px;background:linear-gradient(90deg,transparent,var(--accent-color),transparent);border-radius:1px}.section-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem;align-items:center;max-width:600px;margin:0 auto;padding:.75rem 0;position:relative;z-index:2;overflow:visible;margin-bottom:1rem;min-height:48px}.section-chip{display:inline-flex;align-items:center;justify-content:center;padding:.4rem .875rem;background:rgba(var(--primary-bg-raw),.8);backdrop-filter:blur(12px);border:1px solid var(--glass-border-color);border-radius:var(--border-radius-pill);color:var(--secondary-text);font-family:var(--font-body);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;position:relative;overflow:hidden;will-change:transform,box-shadow,background-color;transform:translateZ(0);-webkit-transform:translate3d(0,0,0);-webkit-backface-visibility:hidden;backface-visibility:hidden;min-height:34px;min-width:36px;z-index:1;margin:.25rem;max-width:calc(100vw - 200px);line-height:1.2;box-shadow:0 2px 8px #0000001a}.section-chip:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .6s cubic-bezier(.4,0,.2,1);z-index:1;border-radius:var(--border-radius-pill)}.section-chip:hover{color:var(--primary-text);background:#00a6ff1f;border-color:var(--accent-color);transform:translateY(-3px) scale(1.02);box-shadow:0 6px 20px #00a6ff26,0 0 0 1px #00a6ff1a,0 0 15px #00a6ff33;z-index:10}.section-chip:hover:before{left:100%}.section-chip:active{transform:translateY(-1px) scale(1.01);transition-duration:.1s;box-shadow:0 2px 8px #00a6ff26,0 0 0 1px #00a6ff1a}.section-chip:focus-visible{outline:2px solid var(--focus-outline-color);outline-offset:3px;transform:translateY(-2px) scale(1.02);box-shadow:0 4px 15px #00a6ff33,0 0 0 1px var(--focus-outline-color),0 0 10px #00a6ff4d;z-index:10}html[dir=rtl] .section-chip{font-family:var(--font-body-ar)}.nav-links{transform:translateZ(0)}.nav-links.transitioning{pointer-events:none}.nav-links.transitioning a{transition:none!important}.nav-links.transitioning a:before,.nav-links.transitioning a:after{transition:none!important;animation:none!important}.nav-links a:focus{outline:none}.nav-links a:focus-visible{outline:2px solid var(--focus-outline-color);outline-offset:3px;transform:translateY(-1px) translateZ(0);-webkit-transform:translateY(-1px) translate3d(0,0,0);box-shadow:0 2px 8px #00a6ff26,0 0 0 1px #00a6ff1a,inset 0 1px #ffffff1a,0 0 0 2px var(--focus-outline-color);text-shadow:0 0 4px rgba(0,166,255,.3)}.nav-links a.transitioning{pointer-events:none;transition:none!important}.nav-links a.transitioning:before,.nav-links a.transitioning:after{transition:none!important;animation:none!important}.section-chip.loading{pointer-events:none;opacity:.7;position:relative}.section-chip.loading:after{content:"";position:absolute;top:50%;left:50%;width:16px;height:16px;margin:-8px 0 0 -8px;border:2px solid transparent;border-top:2px solid var(--accent-color);border-radius:50%;animation:chip-spin .8s linear infinite}@keyframes chip-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.priority-sections{transition:none}.section-chip{transition:color .2s ease,background-color .2s ease,border-color .2s 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