:root{color:#172026;background:#f4f6f8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,select,textarea{font:inherit}button{border:0;border-radius:6px;background:#146c5a;color:#fff;cursor:pointer;min-height:40px;padding:0 14px}button:disabled{cursor:not-allowed;opacity:.6}button.secondary{border:1px solid #cbd4d9;background:#fff;color:#1d2a31}button.danger{border:1px solid #e5b6b6;background:#fff4f4;color:#9b2f2f}button.full{width:100%}button.link-button{background:transparent;color:#146c5a;padding:0}input,select,textarea{width:100%;border:1px solid #cbd4d9;border-radius:6px;background:#fff;color:#172026;min-height:40px;padding:9px 10px}textarea{min-height:120px;resize:vertical}label{display:grid;gap:6px;color:#46535b;font-size:13px;font-weight:600}.checkbox-label{grid-template-columns:auto 1fr;align-items:center}.checkbox-label input{width:auto;min-height:0}h1,h2,p{margin:0}h1{font-size:28px;line-height:1.2}h2{font-size:16px;line-height:1.3}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#eef3f1}.auth-panel{width:min(420px,100%);display:grid;gap:18px;border:1px solid #d7dee2;border-radius:8px;background:#fff;padding:28px;box-shadow:0 18px 50px #1b272d14}.auth-panel p{color:#627078}.shell{min-height:100vh;display:grid;grid-template-columns:248px 1fr}.sidebar{display:flex;flex-direction:column;gap:24px;border-right:1px solid #d7dee2;background:#fff;padding:20px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:6px;background:#146c5a;color:#fff;font-weight:800}.brand div{min-width:0}.brand strong,.brand span{display:block}.brand span{overflow:hidden;color:#627078;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.nav{display:grid;gap:6px}.nav button{justify-content:flex-start;border:1px solid transparent;background:transparent;color:#25333a;text-align:left}.nav button.active,.nav button:hover{border-color:#cbd4d9;background:#eef3f1}.content{display:grid;align-content:start;gap:22px;padding:28px}.page-header{display:grid;gap:6px}.page-header p{color:#627078}.panel{display:grid;gap:16px;border:1px solid #d7dee2;border-radius:8px;background:#fff;padding:18px}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.inline-header{margin:0}.form-panel{align-content:start}.split-grid{display:grid;grid-template-columns:minmax(280px,420px) minmax(320px,1fr);gap:18px}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.stats-grid.compact{grid-template-columns:repeat(5,minmax(120px,1fr))}.stat{display:grid;gap:8px;border:1px solid #d7dee2;border-radius:8px;background:#fff;padding:16px}.stat span{color:#627078;font-size:13px}.stat strong{font-size:24px}.action-grid,.button-row{display:flex;flex-wrap:wrap;gap:10px}.filter-row,.pagination-row{display:flex;flex-wrap:wrap;align-items:end;gap:12px}.filter-row label{min-width:180px}.checkbox-row{display:flex;align-items:center;gap:8px}.checkbox-row input{width:auto}.pagination-row{justify-content:flex-end}.pagination-row span{color:#627078;font-size:14px;line-height:38px}.import-summary,.diagnostics-grid{display:grid;gap:12px}.table{display:grid;border:1px solid #d7dee2;border-radius:8px;overflow:hidden}.table-row{display:grid;grid-template-columns:minmax(180px,1fr) 140px 140px;gap:12px;align-items:center;width:100%;min-height:48px;border-bottom:1px solid #d7dee2;border-radius:0;background:#fff;color:#172026;padding:10px 12px;text-align:left}.table-row:last-child{border-bottom:0}.table-row:hover{background:#f7faf9}.table-row.multi{grid-template-columns:minmax(180px,1fr) 100px 110px 90px 90px minmax(180px,auto)}.table-row span{overflow-wrap:anywhere}.table-row small{display:block;color:#627078}.danger-text{color:#9b2f2f!important;font-weight:700}.compact-table .table-row{grid-template-columns:minmax(160px,1fr) 100px minmax(120px,1fr) 120px}.recipient-table .table-row{grid-template-columns:minmax(180px,1.2fr) 90px 110px 110px 130px 150px 150px minmax(160px,1fr) 150px minmax(100px,auto)}.smtp-table .table-row{grid-template-columns:minmax(180px,1.2fr) 120px 120px 110px 120px minmax(150px,1fr) minmax(220px,auto)}.empty-state{display:grid;gap:4px;border:1px dashed #b8c4ca;border-radius:8px;background:#f8fafb;padding:18px}.empty-state p,.message{color:#627078}.message{border:1px solid #cbd4d9;border-radius:6px;background:#f8fafb;padding:10px 12px}.message.error{border-color:#e5b6b6;background:#fff4f4;color:#9b2f2f}.message.success{border-color:#b8d7c2;background:#f2fbf5;color:#23623a}.status-badge{display:inline-block;width:fit-content;margin:4px 0;border-radius:999px;padding:2px 8px;font-size:12px;font-weight:700}.status-badge.neutral{background:#edf2f4;color:#627078}.status-badge.success{background:#dff4e5;color:#23623a}.status-badge.danger{background:#f9dddd;color:#9b2f2f}.progress-block{display:grid;gap:8px;margin-bottom:16px}.progress-label{display:flex;justify-content:space-between;gap:12px}.progress-track{overflow:hidden;width:100%;height:12px;border-radius:999px;background:#e8eef1}.progress-fill{height:100%;border-radius:inherit;background:#2f7d57;transition:width .18s ease}.message span{display:block;margin-top:4px}.html-preview{width:100%;min-height:420px;border:1px solid #d7dee2;border-radius:8px;background:#fff}@media(max-width:920px){.shell{grid-template-columns:1fr}.sidebar{position:sticky;top:0;z-index:2;border-right:0;border-bottom:1px solid #d7dee2}.split-grid,.stats-grid,.stats-grid.compact,.table-row,.table-row.multi,.compact-table .table-row,.recipient-table .table-row,.smtp-table .table-row{grid-template-columns:1fr}}@media(max-width:560px){.content,.sidebar{padding:16px}.panel-header{align-items:flex-start;flex-direction:column}.auth-panel{padding:20px}}