:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#242424;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}a{color:#646cff;-webkit-text-decoration:inherit;text-decoration:inherit;font-weight:500}a:hover{color:#535bf2}body{place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex}h1{font-size:3.2em;line-height:1.1}button{cursor:pointer;background-color:#1a1a1a;border:1px solid #0000;border-radius:8px;padding:.6em 1.2em;font-family:inherit;font-size:1em;font-weight:500;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;display:flex}.dialog-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;background:#000000bf;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.dialog{background:#fff;border-radius:20px;width:90%;max-width:420px;padding:40px;animation:.4s slideUp;box-shadow:0 20px 60px #0000004d}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.dialog-header{text-align:center;margin-bottom:30px}.lock-icon{color:#667eea;width:64px;height:64px;margin:0 auto 20px;display:block}.dialog-header h2{color:#1a202c;margin-bottom:8px;font-size:28px;font-weight:700}.dialog-header p{color:#718096;font-size:14px}.dialog-input{border:2px solid #e2e8f0;border-radius:12px;width:100%;margin-bottom:20px;padding:16px 20px;font-family:inherit;font-size:16px;transition:all .3s}.dialog-input:focus{border-color:#667eea;outline:none;box-shadow:0 0 0 4px #667eea1a}.dialog-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:12px;width:100%;padding:16px;font-family:inherit;font-size:16px;font-weight:600;transition:transform .2s,box-shadow .2s}.dialog-button:hover{transform:translateY(-2px);box-shadow:0 10px 25px #667eea4d}.dialog-button:active{transform:translateY(0)}.container{justify-content:center;align-items:center;width:100%;min-height:100vh;display:flex}.card{background:#fff;border-radius:24px;width:100%;max-width:700px;margin:auto;padding:48px;animation:.5s slideUp;box-shadow:0 20px 60px #0003}.card-header{text-align:center;margin-bottom:40px}.mail-icon{color:#667eea;width:64px;height:64px;margin:0 auto 20px;display:block}.card-header h1{color:#1a202c;margin-bottom:8px;font-size:32px;font-weight:700}.card-header p{color:#718096;font-size:16px}.form-container{flex-direction:column;gap:24px;display:flex}.input-group{flex-direction:column;gap:8px;display:flex}.input-group label{color:#2d3748;letter-spacing:.3px;font-size:14px;font-weight:600}.input{border:2px solid #e2e8f0;border-radius:12px;width:100%;padding:14px 18px;font-family:inherit;font-size:16px;transition:all .3s}.input:focus{border-color:#667eea;outline:none;box-shadow:0 0 0 4px #667eea1a}.preview{background:linear-gradient(135deg,#f6f8fb 0%,#e9ecef 100%);border:2px solid #e2e8f0;border-radius:16px;padding:24px}.preview h3{color:#2d3748;margin-bottom:16px;font-size:18px;font-weight:600}.preview-box{color:#4a5568;background:#fff;border-radius:12px;padding:20px;font-size:15px;line-height:1.7;box-shadow:0 2px 8px #0000000d}.preview-greeting{color:#2d3748;margin-bottom:16px}.preview-box p{margin-bottom:12px}.preview-signature{color:#2d3748;margin-top:16px}.send-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:12px;justify-content:center;align-items:center;gap:10px;width:100%;padding:16px;font-family:inherit;font-size:17px;font-weight:600;transition:all .3s;display:flex}.send-button svg{width:20px;height:20px}.send-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 30px #667eea66}.send-button:active:not(:disabled){transform:translateY(0)}.send-button:disabled{opacity:.7;cursor:not-allowed}.spinner{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.message{text-align:center;border-radius:12px;padding:14px 18px;font-weight:500;animation:.3s slideDown}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.message.success{color:#155724;background:#d4edda;border:2px solid #c3e6cb}.message.error{color:#721c24;background:#f8d7da;border:2px solid #f5c6cb}.error-msg{color:#e53e3e;text-align:center;margin-top:12px;font-size:14px;font-weight:500}@media (max-width:640px){.card,.dialog{padding:32px 24px}.card-header h1{font-size:26px}.dialog-header h2{font-size:24px}}