:root{--color-primary:#007BFF;--color-secondary:#0056B3;--color-accent:#6C757D;--color-warning-orange:#e67e22;--text-main:#212529;--text-secondary:#495057;--text-muted:#868E96;--bg-body:#F8F9FA;--bg-white:#FFFFFF;--bg-footer:#212529;--border-light:#DEE2E6;--border-input:#CED4DA;--shadow-subtle:rgba(0,0,0,0.08)}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;margin:0;padding:0;background-color:var(--bg-body);color:var(--text-main);line-height:1.6}.container{max-width:960px;margin:0 auto;padding-left:10px;padding-right:10px}h1,h2{color:var(--color-primary)}h1{font-size:2.5em;margin-bottom:10px}h2{border-bottom:2px solid var(--color-secondary);padding-bottom:10px;margin-top:40px}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}header{background:var(--bg-white);padding:1rem 0;border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:1000}nav{display:flex;justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:0 20px}nav .logo{font-size:1.5em;font-weight:700;color:var(--color-accent)}.nav-links{display:flex;align-items:center}nav a.logo:hover{text-decoration:none}nav ul{list-style:none;margin:0;padding:0;display:flex}nav ul li{margin-left:30px}nav ul li a{font-weight:700}.language-switcher a{color:var(--text-muted);padding:5px}.language-switcher a.active{color:var(--color-primary);text-decoration:underline}section{padding:20px 0}section[id]{scroll-margin-top:80px}#welcome{text-align:center;padding-top:80px;padding-bottom:80px}#welcome p{font-size:1.2em;color:var(--text-secondary)}.cta-button{display:inline-block;background-color:var(--color-primary);color:var(--bg-white);padding:12px 25px;border-radius:5px;font-weight:700;margin-top:20px;transition:background-color .3s}.cta-button:hover{background-color:var(--color-accent);text-decoration:none;color:var(--bg-white)}.cta-button:disabled{background-color:var(--text-muted);cursor:not-allowed;opacity:.7}.about-container{display:flex;align-items:center;gap:40px}.about-image{flex-shrink:0}.about-image img{width:250px;height:250px;border-radius:50%;object-fit:cover;border:5px solid var(--color-secondary)}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:30px}.service-card{background:var(--bg-white);border:1px solid var(--border-light);border-radius:5px;padding:30px;text-align:center;box-shadow:0 2px 5px var(--shadow-subtle)}.service-card i{font-size:2.5em;color:var(--color-primary);margin-bottom:15px}.service-card h3{color:var(--color-accent);margin-bottom:10px}.timeline{position:relative;margin-top:40px;padding:20px 0}.timeline::before{content:'';position:absolute;left:20px;top:0;bottom:0;width:2px;background:var(--color-secondary)}.timeline-item{position:relative;margin-bottom:30px;padding-left:50px}.timeline-item::before{content:'';position:absolute;left:12px;top:5px;width:18px;height:18px;border-radius:50%;background:var(--color-primary);border:3px solid var(--bg-body)}.timeline-content h3{margin:0 0 5px 0;color:var(--color-accent)}.timeline-date{font-size:.9em;font-weight:700;color:var(--text-secondary);display:block;margin-bottom:10px}.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:30px}.portfolio-item{background:var(--bg-white);border:1px solid var(--border-light);border-radius:5px;padding:20px;box-shadow:0 2px 5px var(--shadow-subtle)}.portfolio-item h3{color:var(--color-accent);margin-top:0}.hidden{display:none}.contact-form{margin-top:30px;display:flex;flex-direction:column;gap:15px}.contact-form input,.contact-form textarea{padding:12px;border:1px solid var(--border-input);border-radius:5px;font-family:inherit;font-size:1em}.contact-form button{align-self:flex-start}footer{background-color:var(--bg-footer);color:var(--bg-white);text-align:center;padding:40px 20px}footer a{color:var(--color-secondary)}.social-links{margin-bottom:20px}.social-links a{font-size:1.8em;color:var(--bg-white);margin:0 10px;transition:color .3s}.social-links a:hover{color:var(--color-secondary);text-decoration:none}.logo{height:50px}.burger div{width:25px;height:3px;background-color:var(--text-main);margin:5px;transition:all .3s ease}.burger{display:none}@media (max-width:768px){.about-container{flex-direction:column;text-align:center}.nav-links{display:none;position:absolute;right:0;height:92vh;top:8vh;background-color:var(--bg-white);flex-direction:column;align-items:center;width:50%;transition:transform .5s ease-in;z-index:1001}.nav-links.nav-active{display:flex;transform:translateX(0)}nav ul{flex-direction:column;align-items:center}nav ul li{margin:20px 0;opacity:0}.burger{display:block;cursor:pointer}}@keyframes navLinkFade{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}.toggle .line1{transform:rotate(-45deg) translate(-5px,6px)}.toggle .line2{opacity:0}.toggle .line3{transform:rotate(45deg) translate(-5px,-6px)}