.contact-form{max-width:600px;margin:2rem 0}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-color,#333)}.required{color:var(--accent-color,#d73a49)}.form-group input[type=text],.form-group input[type=email],.form-group textarea{width:100%;padding:.75rem;border:1px solid var(--border-color,#ddd);border-radius:4px;font-size:1rem;font-family:inherit;transition:border-color .2s ease;background-color:var(--input-bg,#fff);color:var(--text-color,#333)}.form-group input[type=text]:focus,.form-group input[type=email]:focus,.form-group textarea:focus{outline:none;border-color:var(--accent-color,#0366d6);box-shadow:0 0 0 3px rgba(3,102,214,.1)}.form-group textarea{resize:vertical;min-height:120px}.submit-button{padding:.75rem 2rem;background-color:var(--accent-color,#0366d6);color:#fff;border:none;border-radius:4px;font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .1s ease}.submit-button:hover{background-color:var(--accent-hover,#0256c7);transform:translateY(-1px)}.submit-button:active{transform:translateY(0)}.submit-button:focus{outline:none;box-shadow:0 0 0 3px rgba(3,102,214,.3)}@media(prefers-color-scheme:dark){.contact-form{--text-color:#e1e4e8;--input-bg:#1f2937;--border-color:#374151;--accent-color:#58a6ff;--accent-hover:#4493e6}}.hidden{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}