:root{color-scheme:light;--ink:#243330;--muted:#667570;--line:#dce3df;--teal:#087d76;--teal-dark:#05645e;--paper:#f7f8f5;--wash:#eaf0e9;--error:#a43329;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}a{color:inherit}button:disabled{cursor:not-allowed;opacity:.45}[hidden]{display:none!important}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--teal);outline-offset:4px}input:focus,select:focus,textarea:focus{outline:2px solid var(--teal);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-100px;background:#fff;padding:12px;z-index:50}.skip-link:focus{top:12px}
.site-header{background:#fff;border-bottom:1px solid var(--line)}.header-inner{max-width:1280px;margin:auto;min-height:80px;padding:0 40px;display:flex;align-items:center;gap:23px}.brand{display:inline-flex;align-items:center;gap:4px;text-decoration:none;font-size:19px;font-weight:800;letter-spacing:-.6px;white-space:nowrap}.brand svg,.brand span:last-child{color:var(--teal)}.header-divider{height:21px;width:1px;background:var(--line)}.tool-name{font-size:12px;color:var(--muted)}.header-link{margin-left:auto;text-decoration:none;font-size:11px}.header-link span{margin-left:12px;color:var(--teal)}.header-link:hover{text-decoration:underline;text-underline-offset:5px}.container{max-width:1280px;padding:0 40px;margin:auto}.intro{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:46px 0 38px}.eyebrow{font-size:9px;letter-spacing:1.8px;font-weight:700;margin:0 0 10px;color:var(--muted)}.intro .eyebrow{color:var(--teal)}h1{margin:0;font-size:clamp(31px,3.4vw,44px);line-height:1.17;letter-spacing:-1.8px;font-weight:600}h1>span{color:var(--teal)}.intro-copy{margin:12px 0 0;color:var(--muted);font-size:14px}.intro-note{display:flex;align-items:center;gap:15px;flex-shrink:0;font-size:11px;line-height:1.8;color:var(--muted)}.intro-note strong{font-weight:400;color:var(--ink)}.small-star{font-size:38px;color:var(--teal);font-weight:400}h2{margin:0;font-size:20px;letter-spacing:-.6px;line-height:1.3}h3{margin:0;font-size:13px;font-weight:600}
.builder{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.15fr);gap:38px;align-items:start}.editor{background:white;border:1px solid var(--line);border-radius:7px;padding:28px}.editor-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.editor-heading .eyebrow{font-size:9px;margin-bottom:6px}.text-button{border:0;background:transparent;color:var(--teal);font-size:11px;font-weight:600;padding:8px 0;white-space:nowrap}.text-button:hover{text-decoration:underline;text-underline-offset:4px}.form-note{font-size:11px;color:var(--muted);margin:10px 0 26px}fieldset{padding:0;border:0;margin:0;min-width:0}.fields-section{margin:0 0 24px}.fields-section legend,.design-section legend{font-size:12px;font-weight:600;margin-bottom:16px;width:100%}.section-index{color:var(--teal);font-family:Consolas,monospace;font-weight:400;font-size:10px;margin-right:10px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{min-width:0}.field.full{grid-column:1/-1}label{display:block;font-size:11px;font-weight:500;margin-bottom:6px}.optional{font-size:10px;color:var(--muted);margin-left:5px}input:not([type=radio]):not([type=color]),select{display:block;min-width:0;width:100%;height:40px;border:1px solid #d5ddd8;border-radius:4px;background:#fff;color:var(--ink);padding:9px 11px;font-size:12px}input::placeholder{color:#818c87;opacity:1}input[aria-invalid=true]{border-color:var(--error)}.field-error{font-size:11px;color:var(--error);margin:5px 0 0;line-height:1.5}.field-error:empty{display:none}.field-help{margin:7px 0 0;color:var(--muted);font-size:10px;line-height:1.7}.extra-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:0 0 22px}.extra-details summary{display:flex;align-items:center;justify-content:space-between;padding:17px 0;list-style:none;font-size:12px;font-weight:600}.extra-details summary::-webkit-details-marker,.install-guide summary::-webkit-details-marker{display:none}.disclosure{width:7px;height:7px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:rotate(45deg);margin:0 3px 3px 12px;flex-shrink:0}details[open]>summary .disclosure{transform:rotate(225deg);margin-top:5px}.extra-content{display:grid;gap:14px;padding:0 0 20px}.layout-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin-bottom:17px}.layout-option{position:relative;margin:0;cursor:pointer}.layout-option input{position:absolute;opacity:0;width:1px;height:1px}.layout-card{display:flex;flex-direction:column;align-items:center;gap:10px;border:1px solid var(--line);border-radius:4px;padding:15px 8px 9px;color:var(--muted);font-size:10px}.layout-option input:checked+.layout-card{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal);color:var(--teal);background:#f3f9f6}.layout-option input:focus-visible+.layout-card{outline:3px solid var(--teal);outline-offset:3px}.mini-signature{width:54px;height:28px;display:flex;flex-direction:column;gap:4px;padding:2px 0}.mini-signature i{display:block;height:3px;width:38px;background:#c3d0c9}.mini-signature i:first-child{width:44px;height:4px;background:#709a8f}.mini-signature i:last-child{width:28px}.mini-classic{border-left:2px solid var(--teal);padding-left:7px}.mini-stacked{border-top:2px solid var(--teal);padding-top:5px}.mini-minimal i{background:#c4cbc6}.mini-minimal i:first-child{background:#64736c}.style-options{display:grid;grid-template-columns:1fr 1fr .8fr;gap:10px}.color-control{height:40px;display:flex;align-items:center;gap:7px;border:1px solid #d5ddd8;border-radius:4px;padding:6px 8px}.color-control input{width:23px;height:25px;flex-shrink:0;padding:0;border:0;background:none;cursor:pointer}.color-control span{font:10px Consolas,monospace;color:var(--muted)}.style-options select{padding-left:8px;padding-right:2px;font-size:11px}.form-actions{display:flex;align-items:center;gap:23px;margin-top:24px}.button{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:42px;padding:11px 16px;font-size:12px;font-weight:600;border-radius:4px;border:1px solid transparent;text-decoration:none;line-height:1.3}.button.primary{background:var(--teal);color:white;border-color:var(--teal)}.button.primary:hover:not(:disabled){background:var(--teal-dark)}.form-actions .primary{flex:1;justify-content:space-between}.button.secondary{border-color:#ced9d1;background:#fff;color:var(--ink)}.button.secondary:hover:not(:disabled){border-color:var(--teal);color:var(--teal)}.muted-button{color:var(--muted)}.privacy-note{font-size:10px;display:flex;align-items:center;justify-content:center;gap:6px;color:var(--muted);margin:14px 0 0}
.preview-column{position:sticky;top:24px;min-width:0}.preview-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:3px 0 21px}.preview-heading .eyebrow{font-size:9px;margin-bottom:6px}.preview-heading h2{font-size:21px}.preview-state{font-size:9px;padding:5px 8px;color:var(--teal);border:1px solid #cfddd4;border-radius:3px;white-space:nowrap}.preview-workspace{padding:22px;background:var(--wash);border:1px solid #d8e2d8;border-radius:7px}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px}.tabs{display:flex;gap:4px;background:#dfe7de;padding:3px;border-radius:5px}.tab{border:0;background:none;padding:7px 14px;border-radius:3px;font-size:11px;color:#5b6b60}.tab[aria-selected=true]{background:#fff;color:var(--ink);box-shadow:0 1px 2px #24333012}.layout-label{font-size:8px;letter-spacing:1.2px;color:#6d7c70}.email-window{background:#fff;border:1px solid #dce2da;border-radius:6px;overflow:hidden;box-shadow:0 5px 12px #33452b06}.email-window-header{display:flex;justify-content:space-between;gap:10px;padding:13px 19px;background:#f9faf7;border-bottom:1px solid #e6ebe3;font-size:11px;font-weight:600}.window-marks{font-size:13px;color:#889184;font-weight:400}.email-meta{display:flex;gap:17px;margin:0 19px;padding:10px 0;font-size:11px;border-bottom:1px solid #edf0e9;color:#788276}.email-meta>span:first-child{min-width:36px;color:#929b8e}.email-body{padding:23px 23px 30px;min-height:300px}.email-copy{font-size:12px;color:#92998e;margin:0 0 17px}.email-copy.regards{margin-bottom:22px}.signature-preview{max-width:100%;overflow-x:auto;min-height:150px;padding-bottom:4px}.preview-caption{font-size:10px;color:#6e7c70;text-align:center;margin:14px 0 0}.export-bar{display:flex;gap:9px;margin-top:22px}.export-bar .primary{flex:1}.export-bar .secondary{background:transparent}.download-button{display:grid;place-items:center;width:43px;flex-shrink:0;border:1px solid #cad7cb;border-radius:4px;background:transparent;color:var(--ink)}.download-button:hover:not(:disabled){background:#fff}.feedback{font-size:11px;line-height:1.7;min-height:19px;margin:12px 0 0;color:#506454;text-align:center;overflow-wrap:anywhere}.feedback.error,.image-status{color:var(--error)}.image-status{font-size:11px;margin:8px 0 0;line-height:1.6}.empty-preview{padding:15px 0;color:var(--muted);font-size:12px;line-height:1.8}.compatibility-note{display:flex;gap:13px;padding:22px 3px}.note-mark{width:23px;height:23px;border:1px solid #ccdacf;color:var(--teal);display:grid;place-items:center;border-radius:50%;flex-shrink:0;font-size:11px}.compatibility-note p{font-size:11px;line-height:1.8;color:var(--muted);margin:5px 0 0;max-width:450px}.install-guide{border-top:1px solid var(--line);border-bottom:1px solid var(--line);scroll-margin-top:24px}.install-guide summary{display:flex;justify-content:space-between;align-items:center;list-style:none;padding:17px 3px;font-size:12px;font-weight:600}.install-content{padding:0 3px 18px;font-size:12px;line-height:1.8;color:var(--muted)}.install-content p{margin:0 0 10px}.install-content ul{padding-left:18px;margin:12px 0}.install-content li{margin-bottom:9px}.install-content strong{color:var(--ink)}.install-content .install-footnote{font-size:10px;margin-bottom:0}#htmlCode{display:block;width:100%;height:391px;min-height:280px;resize:vertical;white-space:pre;border:1px solid #d2dbd0;border-radius:5px;background:#fff;color:#384d40;padding:18px;font:11px/1.8 Consolas,'Courier New',monospace}
footer{display:flex;justify-content:space-between;gap:20px;margin:46px 0 0;border-top:1px solid var(--line);padding:22px 0 28px;font-size:10px;color:var(--muted)}footer a{text-decoration:none}footer strong{font-size:9px;letter-spacing:.3px;margin-left:10px;color:var(--teal)}.noscript-message{padding:20px;border:1px solid var(--error)}dialog{max-width:620px;width:calc(100% - 32px);padding:25px;border:1px solid var(--line);border-radius:8px;color:var(--ink);background:#fff}dialog::backdrop{background:#14241dcc}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.dialog-heading button{background:none;border:0;font-size:26px;color:var(--muted)}dialog>p{font-size:12px;color:var(--muted);line-height:1.7}.manual-rich{padding:20px 0;max-width:100%;overflow:auto;border-top:1px solid var(--line);margin-bottom:15px}#manualSource{width:100%;height:230px;margin:15px 0;border:1px solid var(--line);padding:10px;font:12px/1.6 Consolas,monospace}
@media(min-width:1450px){.container,.header-inner{max-width:1330px}.builder{gap:48px}}
@media(max-width:1050px){.container,.header-inner{padding-left:25px;padding-right:25px}.builder{gap:23px;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr)}.editor{padding:22px}.preview-workspace{padding:17px}.intro-note{display:none}.preview-heading{flex-wrap:wrap}.preview-heading h2{font-size:19px}.color-control span{font-size:9px}.style-options{gap:7px}.color-control{padding:6px}.export-bar{flex-wrap:wrap}.export-bar .primary{min-width:100%;order:0}.export-bar .secondary{flex:1}.signature-preview{min-height:140px}}
@media(max-width:800px){.builder{grid-template-columns:minmax(0,1fr)}.preview-column{position:static}.intro{padding:32px 0 26px}.header-link{display:none}.preview-heading{margin-top:10px}.preview-workspace{padding:23px}.export-bar .primary{min-width:0}.preview-column{order:0}.editor{padding:26px}.field-grid{gap:16px}.color-control span{font-size:11px}.style-options select{font-size:12px}.style-options{gap:16px}input:not([type=radio]):not([type=color]),select{font-size:16px;height:44px}.form-note,label{font-size:12px}.signature-preview{min-height:130px}.email-body{min-height:290px}.text-button{min-height:40px}footer{flex-wrap:wrap;gap:10px}.preview-heading h2{font-size:22px}}
@media(max-width:480px){.container,.header-inner{padding-left:16px;padding-right:16px}.header-inner{min-height:68px;gap:12px}.brand{font-size:16px}.brand svg{width:21px}.tool-name{font-size:10px}.intro .eyebrow{font-size:8px;letter-spacing:1.2px}h1{font-size:35px;letter-spacing:-1.4px}.intro-copy{font-size:12px;line-height:1.7;max-width:280px}.editor{padding:20px 17px}.field-grid{grid-template-columns:1fr}.editor-heading h2{font-size:19px}.editor-heading .eyebrow{font-size:8px}.form-note{font-size:11px}.fields-section{margin-bottom:24px}.style-options{grid-template-columns:1fr 1fr;gap:14px}.style-options .field:first-child{grid-column:1/-1}.color-control{width:100%}.color-control input{width:28px}.color-control span{font-size:12px}.form-actions{gap:17px}.privacy-note{font-size:9px;align-items:flex-start}.preview-heading{align-items:flex-start}.preview-heading h2{font-size:20px}.preview-state{font-size:8px}.preview-workspace{padding:13px}.email-body{padding:22px 15px}.email-window-header{padding:12px 15px}.email-meta{margin:0 15px}.export-bar .primary{min-width:100%}.layout-label{font-size:7px;letter-spacing:.8px}.tab{padding:7px 12px}footer a{line-height:2}footer strong{margin-left:0;display:block}.layout-card{padding:13px 6px 9px}.preview-caption{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}