:root{--bg-primary: #ffffff;--bg-secondary: #f8fafc;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--border-color: #e2e8f0;--accent-color: #2563eb;--accent-gradient: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);--accent-light: #eff6ff;--header-bg: rgba(255, 255, 255, .85);--card-bg: #ffffff;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -2px rgba(0, 0, 0, .05);--card-shadow-hover: 0 10px 20px -3px rgba(0, 0, 0, .06), 0 4px 8px -2px rgba(0, 0, 0, .04);--max-width: 1100px;--transition-speed: .3s}html[data-theme=dark]{--bg-primary: #0b0f19;--bg-secondary: #0f172a;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--border-color: #1e293b;--accent-color: #3b82f6;--accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);--accent-light: rgba(59, 130, 246, .1);--header-bg: rgba(11, 15, 25, .85);--card-bg: #161e31;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .2);--card-shadow-hover: 0 10px 20px -3px rgba(0, 0, 0, .4)}*{box-sizing:border-box;margin:0;padding:0}html{font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);scroll-behavior:smooth;transition:background-color var(--transition-speed),color var(--transition-speed)}body{min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}body.menu-open{overflow:hidden}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}.navbar{border-bottom:1px solid var(--border-color);position:sticky;top:0;background-color:var(--header-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:100;transition:background-color var(--transition-speed),border-color var(--transition-speed)}.navbar-content{height:4.5rem;display:flex;justify-content:space-between;align-items:center}.logo{font-weight:800;font-size:1.25rem;text-decoration:none;color:var(--text-primary);letter-spacing:-.03em;transition:color var(--transition-speed)}.logo-accent{color:var(--accent-color);background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.navbar-right,.nav-links{display:flex;align-items:center;gap:2rem}.nav-links a{text-decoration:none;color:var(--text-secondary);font-size:.95rem;font-weight:600;transition:color .2s ease}.nav-links a:hover{color:var(--text-primary)}.nav-links .btn-contact{background-color:var(--text-primary);color:var(--bg-primary);padding:.55rem 1.15rem;border-radius:8px;font-weight:700;font-size:.9rem;box-shadow:0 2px 4px #0000000d;transition:transform .2s ease,opacity .2s ease,background-color var(--transition-speed),color var(--transition-speed)}.nav-links .btn-contact:hover{transform:translateY(-1px);opacity:.95}.navbar-actions{display:flex;align-items:center;gap:.75rem}.theme-toggle-btn{background:none;border:1px solid var(--border-color);color:var(--text-primary);width:2.25rem;height:2.25rem;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease,border-color var(--transition-speed)}.theme-toggle-btn:hover{background-color:var(--bg-secondary)}.sun-icon{display:none}.moon-icon,html[data-theme=dark] .sun-icon{display:block}html[data-theme=dark] .moon-icon{display:none}.menu-toggle-btn{background:none;border:1px solid var(--border-color);width:2.25rem;height:2.25rem;border-radius:8px;cursor:pointer;display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;z-index:101;transition:border-color var(--transition-speed)}.menu-toggle-btn .bar{display:block;width:16px;height:2px;background-color:var(--text-primary);border-radius:1px;transition:transform .3s ease,opacity .3s ease,background-color var(--transition-speed)}.menu-toggle-btn[aria-expanded=true] .bar-1{transform:translateY(6px) rotate(45deg)}.menu-toggle-btn[aria-expanded=true] .bar-2{opacity:0}.menu-toggle-btn[aria-expanded=true] .bar-3{transform:translateY(-6px) rotate(-45deg)}.mobile-drawer{position:fixed;top:4.5rem;left:0;right:0;bottom:0;background-color:var(--header-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:99;display:flex;flex-direction:column;padding:2rem 1.5rem;transform:translate(100%);transition:transform .4s cubic-bezier(.16,1,.3,1);border-top:1px solid var(--border-color)}.mobile-drawer.open{transform:translate(0)}.mobile-nav-links{display:flex;flex-direction:column;gap:1.5rem}.mobile-nav-links a{text-decoration:none;color:var(--text-primary);font-size:1.25rem;font-weight:700;padding:.75rem 0;border-bottom:1px solid var(--border-color);transition:color .2s ease,border-color var(--transition-speed)}.mobile-nav-links a:hover{color:var(--accent-color)}.mobile-nav-links .btn-contact-mobile{background:var(--accent-gradient);color:#fff;border-radius:10px;text-align:center;padding:1rem;font-size:1.1rem;border-bottom:none;box-shadow:0 4px 10px #2563eb33}main{flex:1}.footer{border-top:1px solid var(--border-color);padding:3rem 0;margin-top:auto;background-color:var(--bg-secondary);transition:background-color var(--transition-speed),border-color var(--transition-speed)}.footer-content{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;color:var(--text-muted);font-size:.9rem}.footer-meta{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--text-muted)}.footer-socials{display:flex;gap:1.5rem;margin-top:.5rem}.social-icon{color:var(--text-muted);transition:color .2s ease,transform .2s ease;display:inline-flex;align-items:center;justify-content:center}.social-icon:hover{color:var(--text-primary);transform:translateY(-2px)}@media (max-width: 768px){.nav-links{display:none}.menu-toggle-btn{display:flex}}