.language-toggle{position:fixed;top:20px;right:20px;z-index:1001}.lang-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid var(--accent-color);border-radius:25px;color:var(--primary-color);font-weight:600;font-size:14px;cursor:pointer;transition:var(--transition);box-shadow:0 4px 15px #0000001a;position:relative}.lang-btn:hover{background:var(--accent-color);color:var(--white);transform:translateY(-2px);box-shadow:0 6px 20px #00000026}@media (max-width: 768px){.lang-btn{animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}}.lang-btn .lang-text{font-weight:700;letter-spacing:.5px}.lang-btn i{font-size:16px}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #1e3a8a;--secondary-color: #3b82f6;--accent-color: #f59e0b;--dark-color: #1f2937;--light-color: #f8fafc;--text-color: #374151;--text-light: #6b7280;--white: #ffffff;--gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--shadow: 0 10px 30px rgba(0, 0, 0, .1);--shadow-hover: 0 20px 40px rgba(0, 0, 0, .15);--border-radius: 12px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}body{font-family:Inter,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--light-color);scroll-behavior:smooth}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,0,0,.1);z-index:1000;transition:var(--transition)}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;height:70px}.nav-logo h2{color:var(--primary-color);font-size:1.5rem;font-weight:700;margin-left:.5rem}.nav-logo span{color:var(--text-light);font-size:.9rem;font-weight:400;margin-left:.5rem}.logo-container{display:flex;align-items:center}.logo-svg{width:45px;height:45px;transition:var(--transition)}.logo-svg:hover{transform:rotate(5deg) scale(1.05)}.nav-logo{display:flex;align-items:center;gap:.5rem}.nav-menu{display:flex;list-style:none;gap:3rem;margin:23px}.nav-link{text-decoration:none;color:var(--text-color);font-weight:500;transition:var(--transition);position:relative}.nav-link:hover,.nav-link.active{color:var(--primary-color)}.nav-link:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:var(--transition)}.nav-link:hover:after{width:100%}.hamburger{display:none;flex-direction:column;cursor:pointer}.hamburger span{width:25px;height:3px;background:var(--primary-color);margin:3px 0;transition:var(--transition)}.hero{min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e293b,#334155);display:flex;align-items:center;position:relative;overflow:hidden}.hero-particles{position:absolute;width:100%;height:100%;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23334155" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');opacity:.1}.hero-content{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;text-align:center}.hero-logo{display:flex;justify-content:center;margin-bottom:2rem}.hero-logo-svg{width:120px;height:120px;animation:float 6s ease-in-out infinite;filter:drop-shadow(0 0 20px rgba(59,130,246,.3))}@keyframes float{0%,to{transform:translateY(0) rotate(0)}25%{transform:translateY(-10px) 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30px;border-radius:var(--border-radius);text-decoration:none;font-weight:600;font-size:1rem;transition:var(--transition);border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--white);box-shadow:var(--shadow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.btn-secondary{background:transparent;color:#e2e8f0;border:2px solid #475569}.btn-secondary:hover{border-color:var(--secondary-color);color:var(--secondary-color);transform:translateY(-2px)}.hero-social{display:flex;gap:1rem}.social-link{width:50px;height:50px;background:#ffffff1a;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#e2e8f0;font-size:1.2rem;transition:var(--transition);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.social-link:hover{background:var(--secondary-color);color:var(--white);transform:translateY(-3px)}section{padding:100px 0}.section-title{font-size:clamp(2rem,4vw,3rem);font-weight:700;text-align:center;margin-bottom:4rem;color:var(--dark-color);position:relative}.section-title:after{content:"";width:80px;height:4px;background:var(--gradient);position:absolute;bottom:-10px;left:50%;transform:translate(-50%);border-radius:2px}.about{background:var(--white)}.about-intro{font-size:1.2rem;text-align:center;margin-bottom:3rem;color:var(--text-color);max-width:800px;margin-left:auto;margin-right:auto}.about-intro .sentence{display:block;margin-bottom:.5rem}.expertise-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:3rem}.expertise-card{background:var(--white);padding:2.5rem 2rem;border-radius:var(--border-radius);text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid #e5e7eb}.expertise-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.expertise-card i{font-size:3rem;color:var(--secondary-color);margin-bottom:1.5rem}.expertise-card h3{font-size:1.3rem;font-weight:600;margin-bottom:1rem;color:var(--dark-color)}.expertise-card p{color:var(--text-light);line-height:1.6}.skills{background:var(--light-color)}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:4rem}.skill-category{background:var(--white);padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow);transition:var(--transition)}.skill-category:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.skill-category h3{font-size:1.3rem;font-weight:600;margin-bottom:1.5rem;color:var(--dark-color);text-align:center}.skill-items{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.skill-item{display:flex;align-items:center;gap:.5rem;background:var(--light-color);padding:.8rem 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li{position:relative;padding-left:1.5rem;margin-bottom:.5rem;color:var(--text-color)}.timeline-content li:before{content:"→";position:absolute;left:0;color:var(--secondary-color);font-weight:700}.education{background:var(--light-color)}.education-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;margin-bottom:3rem}.education-card{background:var(--white);padding:2.5rem 2rem;border-radius:var(--border-radius);text-align:center;box-shadow:var(--shadow);transition:var(--transition);position:relative}.education-card.featured{background:var(--gradient);color:var(--white);transform:scale(1.05)}.education-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--shadow-hover)}.education-card.featured:hover{transform:translateY(-5px) scale(1.07)}.education-icon{width:70px;height:70px;background:var(--secondary-color);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 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768px){.hamburger{display:flex}.nav-menu{display:none;position:absolute;top:100%;left:0;width:100%;background:var(--white);flex-direction:column;padding:1rem;box-shadow:var(--shadow)}.nav-menu.active{display:flex}.language-toggle{top:12%;left:15px;right:auto;transform:translateY(-50%);z-index:1002}.lang-btn{padding:8px 12px;font-size:12px;gap:6px;border-radius:20px;box-shadow:0 4px 12px #00000026}.lang-btn i{font-size:14px}.hero-buttons{justify-content:center}.btn{width:100%;max-width:200px}.expertise-grid,.skills-grid{grid-template-columns:1fr}.timeline:before{left:15px}.timeline-item{padding-left:50px}.timeline-dot{left:5px}.education-grid{grid-template-columns:1fr}.contact-content{grid-template-columns:1fr;gap:2rem}.cert-list{grid-template-columns:1fr}.soft-skills-grid,.hero-social{justify-content:center}.hero-logo{margin-top:20px;margin-bottom:1.5rem}.hero-logo-svg{width:100px;height:100px}}@media (max-width: 480px){.container{padding:0 15px}section{padding:60px 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.modal-content{transform:scale(1)}.close-btn{position:absolute;top:15px;right:20px;color:var(--text-light);font-size:28px;font-weight:700;border:none;background:none;cursor:pointer;transition:var(--transition)}.close-btn:hover{color:var(--white);transform:rotate(90deg)}.modal-content h3{font-size:1.8rem;text-align:center;margin-bottom:.5rem;color:var(--white)}.modal-content p{text-align:center;color:var(--text-light);margin-bottom:2rem}.modal-form{display:flex;flex-direction:column}.modal-form .btn{margin-top:1rem;width:100%}.error-message{color:#ef4444;text-align:center;margin-top:1rem;font-size:.9rem;min-height:1.2em}:root{--chatbot-primary: #3b82f6;--chatbot-primary-hover: #2563eb;--chatbot-secondary: #8b5cf6;--chatbot-success: #10b981;--chatbot-warning: #f59e0b;--chatbot-danger: #ef4444;--chatbot-bg: #ffffff;--chatbot-surface: #f8fafc;--chatbot-border: #e2e8f0;--chatbot-text: #1e293b;--chatbot-text-muted: #64748b;--chatbot-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px 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#0000000a}.chatbot-toggle:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#fff3,#ffffff1a);border-radius:50%;opacity:0;transition:var(--chatbot-transition)}.chatbot-toggle:hover:before{opacity:1}.chatbot-badge{position:absolute;top:-.5rem;right:-.5rem;background:var(--chatbot-success);color:#fff;font-size:.75rem;font-weight:700;padding:.25rem .5rem;border-radius:1rem;box-shadow:var(--chatbot-shadow);animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.chatbot-container{position:fixed;bottom:2rem;right:2rem;width:400px;height:600px;background:var(--chatbot-bg);border-radius:var(--chatbot-radius);box-shadow:var(--chatbot-shadow-lg);border:1px solid var(--chatbot-border);display:flex;flex-direction:column;z-index:1001;transform:translateY(100%) scale(.8);opacity:0;transition:var(--chatbot-transition);overflow:hidden}.chatbot-container.active{transform:translateY(0) scale(1);opacity:1}.chatbot-header{background:linear-gradient(135deg,var(--chatbot-primary),var(--chatbot-secondary));color:#fff;padding:1rem 1.5rem;display:flex;align-items:center;gap:1rem;position:relative}.chatbot-avatar{width:3rem;height:3rem;background:#fff3;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.chatbot-info h3{margin:0;font-size:1.125rem;font-weight:700}.chatbot-info p{margin:0;font-size:.875rem;opacity:.9}.chatbot-close{position:absolute;top:1rem;right:1rem;background:#fff3;border:none;color:#fff;width:2rem;height:2rem;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--chatbot-transition);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.chatbot-close:hover{background:#ffffff4d;transform:scale(1.1)}.chatbot-messages{flex:1;padding:1rem;overflow-y:auto;background:var(--chatbot-surface);display:flex;flex-direction:column;gap:1rem}.chatbot-messages::-webkit-scrollbar{width:6px}.chatbot-messages::-webkit-scrollbar-track{background:transparent}.chatbot-messages::-webkit-scrollbar-thumb{background:var(--chatbot-border);border-radius:3px}.chatbot-messages::-webkit-scrollbar-thumb:hover{background:var(--chatbot-text-muted)}.message{display:flex;gap:.75rem;animation:slideIn .3s ease}@keyframes 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var(--chatbot-border)}.message-content{max-width:80%;padding:.75rem 1rem;border-radius:var(--chatbot-radius);box-shadow:var(--chatbot-shadow)}.message-content p{margin:0;line-height:1.5;font-size:.875rem}.message-content ul{margin:.5rem 0;padding-left:1.25rem}.message-content li{margin:.25rem 0;font-size:.875rem}.chatbot-typing{padding:1rem;background:var(--chatbot-surface);border-top:1px solid var(--chatbot-border);display:flex;align-items:center;gap:.75rem}.typing-indicator{display:flex;gap:.25rem}.typing-indicator span{width:.5rem;height:.5rem;background:var(--chatbot-primary);border-radius:50%;animation:typing 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.chatbot-typing 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768px){.chatbot-container{width:350px;height:500px;bottom:1rem;right:1rem}.chatbot-toggle{bottom:1rem;right:1rem;width:3.5rem;height:3.5rem;font-size:1.25rem}}@media (max-width: 480px){.chatbot-container{width:calc(100vw - 2rem);height:calc(100vh - 2rem);max-width:400px;bottom:1rem;right:1rem;left:1rem}.chatbot-toggle{bottom:1rem;right:1rem;width:3rem;height:3rem;font-size:1rem}.chatbot-badge{font-size:.625rem;padding:.125rem .375rem}.message-content{max-width:90%}.chatbot-suggestions{flex-direction:column}.suggestion-btn{width:100%;justify-content:center}}.hidden{display:none!important}.fade-in{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.slide-up{animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.chatbot-toggle:focus,.chatbot-send-btn:focus,.suggestion-btn:focus,#chatbot-input:focus{outline:2px solid var(--chatbot-primary);outline-offset:2px}@media (prefers-reduced-motion: 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