:root{--color-primary: #FF6600;--color-secondary: #333333;--color-text: #1a1a1a;--color-bg: #ffffff;--color-bg-alt: #f4f4f4;--font-main: "Roboto", sans-serif;--header-height: 110px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);color:var(--color-text);background:var(--color-bg);line-height:1.6}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}ul{list-style:none}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.text-center{text-align:center}.text-primary{color:var(--color-primary)}.btn{display:inline-block;padding:.75rem 1.5rem;background:var(--color-primary);color:#fff;border-radius:4px;font-weight:700;transition:background .3s;border:none;cursor:pointer}.btn:hover{background:#e65c00}.btn-secondary{background:var(--color-secondary)}.btn-secondary:hover{background:#000}.navbar{height:var(--header-height);background:#fff;box-shadow:0 2px 4px #0000001a;position:sticky;top:0;z-index:1000;display:flex;align-items:center}.navbar .container{display:flex;justify-content:space-between;align-items:center;width:100%}.logo img{height:90px}.nav-links{display:flex;gap:2rem}.nav-links a{font-weight:500;color:var(--color-secondary);transition:color .3s}.nav-links a:hover{color:var(--color-primary)}footer{background:var(--color-secondary);color:#fff;padding:2rem 0;margin-top:auto}body{display:flex;flex-direction:column;min-height:100vh}main{flex:1}@media(max-width:768px){.navbar{height:auto;padding:1rem 0}.navbar .container{flex-direction:column;gap:1rem}.nav-links{gap:1rem;flex-wrap:wrap;justify-content:center}.service-item{flex-direction:column!important}.contact-section .container{flex-direction:column;gap:2rem!important}}