*{margin:0;padding:0;box-sizing:border-box;}:root{--primary-color:#0B3D91;--secondary-color:#007BFF;--accent-color:#0056D6;--text-color:#10243A;--text-light:#4B6B8F;--text-lighter:#8EA3C6;--background-color:#FFFFFF;--background-light:#F4F8FF;--border-color:#E6EEF9;--gradient-bg:linear-gradient(135deg,#3AA0FF 0%,#0056D6 100%);--shadow:0 4px 15px rgba(0,0,0,0.1);--shadow-hover:0 8px 25px rgba(0,0,0,0.15);--border-radius:12px;--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);}html{scroll-behavior:smooth;}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--background-color);overflow-x:hidden;}.container{max-width:1200px;margin:0 auto;padding:0 2rem;}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--primary-color);}.section-title{font-size:2.5rem;text-align:center;margin-bottom:3rem;position:relative;}.section-title::after{content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:60px;height:4px;background:var(--gradient-bg);border-radius:2px;}.section-subtitle{text-align:center;color:var(--text-light);font-size:1.1rem;margin-bottom:3rem;max-width:600px;margin-left:auto;margin-right:auto;}.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:12px 24px;border:none;border-radius:var(--border-radius);text-decoration:none;font-weight:500;font-size:1rem;cursor:pointer;transition:var(--transition);text-align:center;}.btn-primary{background:var(--secondary-color);color:white;}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);background:var(--accent-color);}.btn-secondary{background:transparent;color:var(--secondary-color);border:2px solid var(--secondary-color);}.btn-secondary:hover{background:var(--secondary-color);color:white;}.btn-white{background:white;color:var(--primary-color);box-shadow:var(--shadow);}.btn-link{color:var(--secondary-color);text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:0.5rem;padding:0.5rem 0;transition:var(--transition);}.btn-link:hover{color:var(--accent-color);}.navbar{position:fixed;top:0;width:100%;background:rgba(244,248,255,0.95);backdrop-filter:blur(8px);z-index:1000;transition:var(--transition);border-bottom:1px solid var(--border-color);}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;}.nav-logo h2{color:var(--primary-color);font-size:1.5rem;}.nav-menu{display:flex;list-style:none;gap:2rem;}.nav-link{color:var(--text-color);text-decoration:none;font-weight:500;transition:var(--transition);position:relative;}.nav-link:hover{color:var(--secondary-color);}.nav-link::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--secondary-color);transition:var(--transition);}.nav-link:hover::after{width:100%;}.hamburger{display:none;flex-direction:column;cursor:pointer;}.bar{width:25px;height:3px;background:var(--primary-color);margin:3px 0;transition:var(--transition);}.video-placeholder{position:relative;width:100%;height:0;padding-bottom:56.25%;background-color:var(--background-light);background-size:cover;background-position:center;border-radius:8px;overflow:hidden;cursor:pointer;}.video-placeholder .play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(11,61,145,0.9);color:white;border:none;width:72px;height:72px;border-radius:50%;font-size:28px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(11,61,145,0.35);}.video-placeholder:focus{outline:3px solid rgba(0,123,255,0.15);}.hero{min-height:100vh;display:flex;align-items:center;background:var(--gradient-bg);color:white;position:relative;overflow:hidden;}.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><circle cx="500" cy="500" r="300" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/><circle cx="200" cy="200" r="150" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/><circle cx="800" cy="800" r="200" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');background-size:cover;animation:float 20s ease-in-out infinite;}@keyframes float{0%,100%{transform:translateY(0px) rotate(0deg);}50%{transform:translateY(-20px) rotate(180deg);}}.hero-container{max-width:1200px;margin:0 auto;padding:0 2rem;position:relative;z-index:2;}.hero-content{display:grid;grid-template-columns:2fr 1fr;gap:4rem;align-items:center;}.hero-title{font-size:3.5rem;font-weight:700;margin-bottom:1rem;color:white;}.hero-subtitle{font-size:1.5rem;color:rgba(255,255,255,0.9);margin-bottom:1.5rem;font-weight:400;}.hero-description{font-size:1.2rem;line-height:1.6;margin-bottom:2rem;color:rgba(255,255,255,0.8);}.hero-buttons{display:flex;gap:1rem;margin-bottom:3rem;flex-wrap:wrap;}.hero-stats{display:flex;gap:2rem;flex-wrap:wrap;}.stat{text-align:center;}.stat-number{display:block;font-size:2rem;font-weight:700;color:white;}.stat-label{font-size:0.9rem;color:rgba(255,255,255,0.8);}.profile-photo{width:300px;height:300px;border-radius:50%;object-fit:cover;border:8px solid rgba(255,255,255,0.2);box-shadow:0 20px 40px rgba(0,0,0,0.3);transition:var(--transition);}.profile-photo:hover{transform:scale(1.05);}.about{padding:6rem 0;background:var(--background-light);}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;}.about-text p{font-size:1.1rem;margin-bottom:1.5rem;color:var(--text-light);line-height:1.8;}.skills-grid{display:grid;gap:2rem;}.skill-category h3{margin-bottom:1rem;color:var(--primary-color);}.skill-item{margin-bottom:1rem;}.skill-item span{display:block;margin-bottom:0.5rem;font-weight:500;}.skill-bar{width:100%;height:8px;background:var(--border-color);border-radius:4px;overflow:hidden;}.skill-progress{height:100%;background:var(--gradient-bg);border-radius:4px;transition:width 1s ease-in-out;}.projects{padding:6rem 0;}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;}.project-card{background:white;border-radius:var(--border-radius);box-shadow:var(--shadow);overflow:hidden;transition:var(--transition);}.project-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}.project-image{height:200px;background:var(--gradient-bg);display:flex;align-items:center;justify-content:center;position:relative;}.project-icon{font-size:4rem;color:white;}.project-image img,.project-thumb{width:100%;height:100%;object-fit:cover;display:block;}.project-content{padding:1.5rem;}.project-title{font-size:1.3rem;margin-bottom:1rem;color:var(--primary-color);}.project-description{color:var(--text-light);margin-bottom:1.5rem;line-height:1.6;}.project-tech{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:1.5rem;}.tech-tag{background:var(--background-light);color:var(--secondary-color);padding:0.3rem 0.8rem;border-radius:20px;font-size:0.8rem;font-weight:500;border:1px solid var(--border-color);}.project-links{display:flex;gap:1rem;}.dashboards{padding:6rem 0;background:var(--background-light);}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;}.dashboard-item{background:white;border-radius:var(--border-radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);}.dashboard-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}.dashboard-item.project-card{background:white;border-radius:var(--border-radius);box-shadow:var(--shadow);overflow:hidden;transition:var(--transition);}.dashboard-item.project-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}.dashboard-item.project-card .dashboard-preview{height:200px;background:var(--gradient-bg);display:flex;align-items:center;justify-content:center;position:relative;}.dashboard-item.project-card .dashboard-placeholder{border-radius:0;background:transparent;}.dashboard-item.project-card .project-content{padding:1.5rem;}.dashboard-item.project-card .project-title{font-size:1.3rem;margin-bottom:1rem;color:var(--primary-color);}.dashboard-item.project-card .project-description{color:var(--text-light);margin-bottom:1.5rem;line-height:1.6;}.dashboard-item.project-card .dashboard-tech,.dashboard-item.project-card .project-tech{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:1.5rem;}.dashboard-preview{position:relative;height:200px;overflow:hidden;background:var(--background-light);}.dashboard-image{width:100%;height:100%;object-fit:cover;transition:var(--transition);}.dashboard-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.7);display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition);}.dashboard-preview:hover .dashboard-overlay{opacity:1;}.dashboard-preview:hover .dashboard-image{transform:scale(1.1);}.dashboard-item h3{padding:1rem 1.5rem 0.5rem;font-size:1.2rem;}.dashboard-item p{padding:0 1.5rem 1.5rem;color:var(--text-light);}.dashboard-placeholder{width:100%;height:200px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));display:flex;align-items:center;justify-content:center;border-radius:8px;}.dashboard-icon-large{font-size:4rem;color:white;opacity:0.9;}.dashboard-tech{padding:0 1.5rem 1.5rem;display:flex;flex-wrap:wrap;gap:0.5rem;}.tech-badge{background:var(--background-light);color:var(--secondary-color);padding:0.25rem 0.75rem;border-radius:20px;font-size:0.8rem;font-weight:500;border:1px solid var(--border-color);}.contact{padding:6rem 0;background:var(--primary-color);color:white;}.contact .section-title{color:white;}.contact .section-title::after{background:white;}.contact-content{display:grid;grid-template-columns:2fr 1fr;gap:4rem;align-items:start;}.contact-info{display:grid;gap:2rem;}.contact-item{display:flex;align-items:center;gap:1rem;}.contact-item i{font-size:1.5rem;color:var(--secondary-color);width:40px;text-align:center;}.contact-item h3{color:white;margin-bottom:0.5rem;}.contact-item p{color:rgba(255,255,255,0.8);}.contact-item a{color:var(--secondary-color);text-decoration:none;}.contact-cta{text-align:center;padding:2rem;background:rgba(255,255,255,0.1);border-radius:var(--border-radius);backdrop-filter:blur(10px);}.contact-cta h3{color:white;margin-bottom:1rem;}.contact-cta p{color:rgba(255,255,255,0.8);margin-bottom:2rem;}.contact-form input[type="text"],.contact-form input[type="email"],.contact-form textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid rgba(16,36,58,0.08);margin-bottom:0.75rem;font-size:0.95rem;}.contact-form .form-row{max-width:420px;margin:0.25rem auto;}.contact-form button{min-width:140px;}@media (prefers-reduced-motion:reduce){.contact-form button{transition:none;}}#contact-status strong{font-size:1rem;display:inline-block;padding:8px 12px;background:rgba(102,194,255,0.12);border-radius:8px;}.footer{background:var(--background-light);padding:2rem 0;text-align:center;border-top:1px solid var(--border-color);}.footer p{color:var(--text-light);margin-bottom:0.5rem;}@media (max-width:768px){.container{padding:0 1rem;}.nav-menu{position:fixed;left:-100%;top:70px;flex-direction:column;background-color:white;width:100%;text-align:center;transition:0.3s;box-shadow:0 10px 27px rgba(0,0,0,0.05);padding:2rem 0;}.nav-menu.active{left:0;}.hamburger{display:flex;}.hamburger.active .bar:nth-child(2){opacity:0;}.hamburger.active .bar:nth-child(1){transform:translateY(8px) rotate(45deg);}.hamburger.active .bar:nth-child(3){transform:translateY(-8px) rotate(-45deg);}.hero-content{grid-template-columns:1fr;text-align:center;gap:2rem;}.hero-title{font-size:2.5rem;}.hero-buttons{justify-content:center;}.profile-photo{width:200px;height:200px;}.about-content{grid-template-columns:1fr;gap:2rem;}.projects-grid{grid-template-columns:1fr;}.dashboard-grid{grid-template-columns:1fr;}.contact-content{grid-template-columns:1fr;gap:2rem;}.section-title{font-size:2rem;}}@media (max-width:480px){.hero-title{font-size:2rem;}.hero-subtitle{font-size:1.2rem;}.hero-stats{justify-content:center;}.project-card{margin:0 1rem;}}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px);}to{opacity:1;transform:translateY(0);}}.fade-in-up{animation:fadeInUp 0.6s ease-out;}:root{--font-sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial;--font-serif:'Merriweather',Georgia,'Times New Roman',serif;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--max-content-width:1100px;--focus-ring:3px solid rgba(3,102,255,0.18);}[data-theme="dark"]{--primary-color:#d6e7ff;--secondary-color:#66c2ff;--accent-color:#3AA0FF;--text-color:#e6f0ff;--text-light:#c8dbf6;--text-lighter:#9fb9df;--background-color:#0b1117;--background-light:#07101a;--border-color:rgba(255,255,255,0.06);--gradient-bg:linear-gradient(135deg,#0056D6 0%,#003A80 100%);--shadow:0 6px 18px rgba(0,0,0,0.6);--shadow-hover:0 10px 30px rgba(0,0,0,0.7);}[data-theme="dark"] .project-card,[data-theme="dark"] .dashboard-item,[data-theme="dark"] .cert-card,[data-theme="dark"] .pdf-modal-content,[data-theme="dark"] .cv-modal-inner{background:var(--background-light);color:var(--text-color);border:1px solid var(--border-color);box-shadow:0 8px 30px rgba(0,0,0,0.6);}[data-theme="dark"] .project-content,[data-theme="dark"] .dashboard-item h3,[data-theme="dark"] .project-description,[data-theme="dark"] .dashboard-item p,[data-theme="dark"] .cert-card h4{color:var(--text-color);}[data-theme="dark"] .btn-white{background:transparent;color:var(--text-light);box-shadow:none;border:1px solid rgba(255,255,255,0.04);}[data-theme="dark"] .contact{background:var(--background-light);color:var(--text-color);}[data-theme="dark"] .contact .section-title::after{background:var(--text-color);}[data-theme="dark"] .contact-item i{color:var(--secondary-color);}[data-theme="dark"] .contact-item p,[data-theme="dark"] .contact-item h3,[data-theme="dark"] .contact-cta h3,[data-theme="dark"] .contact-cta p{color:var(--text-color);}[data-theme="dark"] .dashboard-overlay{background:rgba(0,0,0,0.5);}[data-theme="dark"] body,[data-theme="dark"] .nav-link,[data-theme="dark"] .nav-logo h2,[data-theme="dark"] .nav-actions .theme-toggle,[data-theme="dark"] .section-title,[data-theme="dark"] .section-subtitle,[data-theme="dark"] .project-title,[data-theme="dark"] .project-description,[data-theme="dark"] .project-tech,[data-theme="dark"] .tech-tag,[data-theme="dark"] .tech-badge,[data-theme="dark"] .dashboard-item h3,[data-theme="dark"] .dashboard-item p,[data-theme="dark"] .stat-number,[data-theme="dark"] .stat-label,[data-theme="dark"] .cert-card h4,[data-theme="dark"] .contact-item h3,[data-theme="dark"] .contact-item p,[data-theme="dark"] .contact-cta h3,[data-theme="dark"] .contact-cta p{color:var(--text-color) !important;}[data-theme="dark"] .nav-menu{background:var(--background-light);}[data-theme="dark"] .skill-bar{background:rgba(255,255,255,0.04);}[data-theme="dark"] .skill-progress{background:var(--gradient-bg);}[data-theme="dark"] .tech-tag{background:rgba(255,255,255,0.02);border-color:rgba(255,255,255,0.04);}[data-theme="dark"] .hero-title,[data-theme="dark"] .hero-subtitle,[data-theme="dark"] .hero-description{color:var(--text-color) !important;}.nav-actions{display:flex;align-items:center;gap:0.5rem;}.theme-toggle{background:transparent;border:1px solid rgba(16,36,58,0.06);padding:6px 10px;border-radius:8px;cursor:pointer;font-size:0.95rem;transition:var(--transition);}.theme-toggle:hover{transform:translateY(-2px);}.cv-float{position:fixed;bottom:32px;right:32px;z-index:1000;background:var(--secondary-color);color:white;font-weight:600;padding:12px 20px;border:none;border-radius:28px;box-shadow:0 8px 28px rgba(3,102,255,0.18);cursor:pointer;transition:transform 180ms ease,box-shadow 180ms ease;}.cv-float:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}.cv-emoji{font-size:1.05rem;margin-right:8px;}.cv-modal{display:none;position:fixed;inset:0;background:rgba(10,14,20,0.8);z-index:2000;align-items:center;justify-content:center;}.cv-modal.open{display:flex;}.cv-modal-inner{position:relative;width:90vw;max-width:900px;height:80vh;box-shadow:0 20px 48px rgba(3,102,255,0.14);border-radius:16px;overflow:hidden;background:var(--background-color);}.cv-modal-close{position:absolute;top:12px;right:16px;background:transparent;border:none;color:var(--secondary-color);font-size:1.6rem;cursor:pointer;z-index:10;}.cv-iframe{width:100%;height:100%;border:0;background:transparent;}:focus{outline:none;}:focus-visible{outline:var(--focus-ring);outline-offset:3px;}@media (prefers-reduced-motion:reduce){*{animation-duration:0.001ms !important;transition-duration:0.001ms !important;}}.certifications{padding:4rem 0;background:var(--background-color);}.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;}.cert-card{background:white;border-radius:12px;padding:1rem;box-shadow:var(--shadow);text-align:center;}.cert-thumb{width:100%;height:140px;display:flex;align-items:center;justify-content:center;font-size:40px;color:var(--secondary-color);border-radius:8px;background:linear-gradient(135deg,rgba(3,102,255,0.06),rgba(0,86,214,0.04));margin-bottom:0.75rem;}.cert-thumb img{width:100%;height:100%;object-fit:cover;border-radius:8px;display:block;}.cert-thumb img.loading{filter:blur(12px);transform:scale(1.03);transition:filter 400ms ease,transform 400ms ease;}.cert-thumb img.loaded{filter:none;transform:none;transition:filter 400ms ease,transform 400ms ease;}.cert-links{display:flex;gap:.5rem;justify-content:center;margin-top:.5rem;}#pdf-modal{display:none;}#pdf-modal.open{display:block;position:fixed;inset:0;z-index:2000;}.pdf-modal-overlay{position:fixed;inset:0;background:rgba(2,18,39,0.6);}.pdf-modal-content{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:90%;max-width:1100px;height:80vh;background:white;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-hover);display:flex;flex-direction:column;}.pdf-modal-close{position:absolute;right:12px;top:12px;background:transparent;border:0;font-size:20px;cursor:pointer;color:var(--text-color);z-index:2100;}.pdf-modal-toolbar{display:flex;gap:0.5rem;align-items:center;padding:0.5rem 1rem;border-bottom:1px solid var(--border-color);background:#fff;}.pdf-canvas-container{flex:1;overflow:auto;display:flex;align-items:center;justify-content:center;padding:1rem;background:#f6f9ff;}#pdf-modal .btn{padding:6px 10px;}@media (prefers-reduced-motion:no-preference){.section-title,.project-card,.dashboard-item,.skill-category{opacity:0;transform:translateY(30px);transition:all 0.6s ease-out;}.section-title.in-view,.project-card.in-view,.dashboard-item.in-view,.skill-category.in-view{opacity:1;transform:translateY(0);}}.section-title,.project-card,.dashboard-item,.skill-category{opacity:1 !important;}@media (min-width:800px){.dashboard-grid{grid-template-columns:repeat(3,1fr) !important;}}