:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#1e4f55;--accent-bg:#1e4f551a;--accent-border:#1e4f5580;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#5fb8c2;--accent-bg:#5fb8c226;--accent-border:#5fb8c280;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1200px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.page{box-sizing:border-box;flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.top-bar{box-sizing:border-box;justify-content:flex-end;align-items:center;gap:16px;padding:16px 40px 0;display:flex}.top-bar-user{color:var(--text);font-size:14px}.logout-btn{border:1px solid var(--border);background:var(--bg);color:var(--text-h);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:7px 12px;font-family:inherit;font-size:13px;font-weight:500;transition:border-color .15s,color .15s;display:inline-flex}.logout-btn:hover{border-color:var(--accent-border);color:var(--accent)}.card{background:var(--bg);border:1px solid var(--border);width:100%;max-width:1040px;box-shadow:var(--shadow);box-sizing:border-box;text-align:left;border-radius:18px;padding:40px 48px}.card-header{text-align:center;margin-bottom:28px}.icon-badge{background:var(--accent-bg);width:52px;height:52px;color:var(--accent);border-radius:14px;justify-content:center;align-items:center;margin-bottom:14px;display:inline-flex}.card h1{letter-spacing:-.6px;margin:0 0 8px;font-size:28px}.subtitle{color:var(--text);max-width:420px;margin:0 auto;font-size:15px}.email-form{grid-template-columns:300px 1fr;grid-template-areas:"tenants subject""tenants body""submit submit""banner banner""results results";align-items:start;gap:20px 28px;display:grid}.email-form .tenant-fieldset{grid-area:tenants;height:100%}.email-form label:has(input[type=text]){grid-area:subject}.email-form .field-block{grid-area:body}.email-form .submit-btn{grid-area:submit}.email-form .banner{grid-area:banner}.email-form .results{grid-area:results}@media (width<=760px){.email-form{grid-template-columns:1fr;grid-template-areas:"tenants""subject""body""submit""banner""results"}.email-form .tenant-fieldset{height:auto}}.email-form label,.email-form .field-block{color:var(--text);flex-direction:column;gap:6px;font-size:14px;font-weight:500;display:flex}.email-form input[type=text],.email-form textarea{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:10px;outline:none;padding:11px 14px;font-family:inherit;font-size:16px;transition:border-color .15s,box-shadow .15s}.email-form input[type=text]:focus,.email-form textarea:focus{border-color:var(--accent-border);box-shadow:0 0 0 3px var(--accent-bg)}.email-form textarea{resize:vertical;line-height:1.5}.body-field{border:1px solid var(--border);background:var(--bg);border-radius:10px;transition:border-color .15s,box-shadow .15s;overflow:hidden}.body-field:focus-within{border-color:var(--accent-border);box-shadow:0 0 0 3px var(--accent-bg)}.body-toolbar{border-bottom:1px solid var(--border);background:var(--code-bg);align-items:center;gap:8px;padding:8px;display:flex}.toolbar-btn{border:1px solid var(--border);background:var(--bg);color:var(--text-h);cursor:pointer;border-radius:7px;align-items:center;gap:6px;padding:6px 10px;font-family:inherit;font-size:13px;font-weight:500;transition:border-color .15s,color .15s;display:inline-flex}.toolbar-btn:hover{border-color:var(--accent-border);color:var(--accent)}.body-editor{min-height:160px;max-height:420px;color:var(--text-h);outline:none;padding:11px 14px;font-family:inherit;font-size:16px;line-height:1.5;overflow-y:auto}.body-editor img{border-radius:8px;max-width:100%}.body-editor:empty:before{content:attr(data-placeholder);color:var(--text);opacity:.65;pointer-events:none}.tenant-fieldset{border:1px solid var(--border);border-radius:12px;margin:0;padding:16px}.tenant-fieldset legend{color:var(--text-h);padding:0 6px;font-size:14px;font-weight:600}.tenant-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;display:grid}.tenant-card{border:1px solid var(--border);cursor:pointer;border-radius:10px;align-items:flex-start;gap:10px;padding:12px;font-size:15px;transition:border-color .15s,background .15s,transform .1s;flex-direction:row!important;display:flex!important}.tenant-card:hover{border-color:var(--accent-border)}.tenant-card.selected{border-color:var(--accent-border);background:var(--accent-bg)}.tenant-card input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer;flex-shrink:0;margin-top:1px}.tenant-card-name{color:var(--text-h);overflow-wrap:anywhere;min-width:0;font-weight:600}.muted{color:var(--text);margin:0;font-size:14px}.submit-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:13px;font-size:16px;font-weight:600;transition:opacity .15s,transform .1s,box-shadow .15s;display:flex}.submit-btn:disabled{opacity:.65;cursor:not-allowed}.submit-btn:hover:not(:disabled){opacity:.9;box-shadow:0 6px 16px -6px var(--accent)}.submit-btn:active:not(:disabled){transform:scale(.98)}.spinner{animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.banner{border-radius:10px;justify-content:center;align-items:center;gap:8px;margin:0;padding:12px;font-size:14.5px;font-weight:500;display:flex}.banner-success{color:#16a34a;background:#16a34a1a}.results{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.results li{text-align:left;border-radius:8px;align-items:flex-start;gap:8px;padding:10px 12px;font-size:14px;display:flex}.results li svg{flex-shrink:0;margin-top:1px}.result-success{color:#16a34a;background:#16a34a14}.result-error{color:#dc2626;background:#dc262614}.login-card{max-width:440px}.microsoft-btn{color:#5e5e5e;cursor:pointer;background:#fff;border:1px solid #8c8c8c;border-radius:4px;justify-content:center;align-items:center;gap:12px;width:100%;padding:12px;font-family:inherit;font-size:15px;font-weight:600;transition:background .15s,box-shadow .15s;display:flex}.microsoft-btn:hover{background:#f5f5f5}.microsoft-btn:active{background:#ebebeb}