*{box-sizing:border-box;margin:0;padding:0}:root{--bg-color:#fff;--text-color:#000;--link-color:#06c;--link-hover-color:#0052a3}@media (prefers-color-scheme:dark){:root{--bg-color:#1a1a1a;--text-color:#e0e0e0;--link-color:#4a9eff;--link-hover-color:#6bb3ff}}html{font-size:16px}body{background-color:var(--bg-color);color:var(--text-color);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;transition:background-color .3s,color .3s}a{color:var(--link-color);text-decoration:none;transition:color .2s}a:hover{color:var(--link-hover-color)}.container{justify-content:center;align-items:center;min-height:100vh;padding:1.5rem;display:flex}.container main{transform:translateY(-50%)}.card{text-align:left;width:100%;max-width:600px;position:relative}.language-selector{justify-content:flex-end;gap:.5rem;margin-bottom:2rem;display:flex}.lang-btn{border:1px solid var(--text-color);color:var(--text-color);cursor:pointer;opacity:.6;background:0 0;border-radius:4px;padding:.375rem .75rem;font-size:.875rem;font-weight:500;transition:all .2s}.lang-btn:hover{opacity:1;background-color:var(--text-color);color:var(--bg-color)}.lang-btn.active{opacity:1;background-color:var(--text-color);color:var(--bg-color);border-color:var(--text-color)}.header{margin-bottom:2.5rem}.title{color:var(--text-color);margin-bottom:1rem;font-size:2.5rem;font-weight:600;line-height:1.2}.subtitle{color:var(--text-color);opacity:.8;font-size:1.125rem;font-weight:400;line-height:1.6}.contact{margin-top:2rem}.contact-label{color:var(--text-color);opacity:.7;margin-bottom:1rem;font-size:1rem;font-weight:400}.email{color:var(--link-color);text-underline-offset:4px;word-break:break-all;font-size:1.5rem;font-weight:500;text-decoration:underline;text-decoration-thickness:2px;transition:all .2s;display:inline-block}.email:hover{color:var(--link-hover-color);text-decoration-thickness:3px}@media (max-width:768px){.container{padding:1.25rem}.title{font-size:2.5rem}.contact-label{font-size:1.125rem}.email{font-size:1.5rem}.language-selector{margin-bottom:1.5rem}}@media (max-width:480px){.container{padding:1rem}.title{font-size:2.25rem}.contact-label{font-size:1rem}.email{font-size:1.375rem}.header{margin-bottom:2rem}.language-selector{margin-bottom:1.25rem}.lang-btn{padding:.375rem .75rem;font-size:.875rem}}