:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1c2536; --muted:#6b7689;
  --line:#e4e8f0; --line-2:#d7dce8;
  --brand:#3b5bdb; --brand-ink:#fff; --brand-soft:#eef2ff;
  --green:#1f9d55; --green-soft:#e7f6ee;
  --red:#d6336c; --red-soft:#fdeef3;
  --amber:#b8860b; --amber-soft:#fdf6e3;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px rgba(16,24,40,.06);
  --radius:14px; --radius-sm:9px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
h1,h2,h3{margin:0 0 .4em;line-height:1.25}
h2{font-size:1.15rem}
h3{font-size:1rem}
a{color:var(--brand);text-decoration:none}
code{background:#eef1f7;padding:.05em .35em;border-radius:5px;font-size:.85em}
.muted{color:var(--muted)}
.small{font-size:.85rem}
hr{border:0;border-top:1px solid var(--line);margin:1.5rem 0}

/* ---------- Top bar ---------- */
.topbar{display:flex;align-items:center;gap:1.5rem;background:var(--card);
  border-bottom:1px solid var(--line);padding:.6rem 1.25rem;position:sticky;top:0;z-index:20}
.brand{font-weight:700;font-size:1.1rem;display:flex;align-items:center;gap:.45rem;white-space:nowrap}
.brand-mark{font-size:1.2rem}
.tabs{display:flex;gap:.25rem;flex:1}
.tab{background:none;border:0;padding:.55rem .9rem;border-radius:var(--radius-sm);
  font:inherit;font-weight:600;color:var(--muted);cursor:pointer}
.tab:hover{background:var(--bg);color:var(--ink)}
.tab.active{background:var(--brand-soft);color:var(--brand)}
.topbar-right{display:flex;align-items:center;gap:.75rem}
.who{color:var(--muted);font-size:.9rem;white-space:nowrap}

/* ---------- Layout ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:1.5rem 1.25rem 4rem}
.tabpane{display:none}
.tabpane.active{display:block;animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.grid{display:grid;grid-template-columns:minmax(320px,420px) 1fr;gap:1.25rem;align-items:start}
@media(max-width:860px){.grid{grid-template-columns:1fr}}

/* ---------- Cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.25rem 1.25rem 1.4rem}
.card.narrow{max-width:760px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}

/* ---------- Fields ---------- */
.field{display:block;margin:0 0 1rem;font-weight:600;font-size:.85rem;color:var(--ink)}
.field-label{display:block;margin-bottom:.4rem;font-weight:600;font-size:.85rem}
input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{
  width:100%;margin-top:.35rem;padding:.6rem .7rem;border:1px solid var(--line-2);
  border-radius:var(--radius-sm);font:inherit;font-weight:400;color:var(--ink);background:#fff;transition:border .15s,box-shadow .15s}
select{margin-top:.35rem}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
textarea{resize:vertical;line-height:1.5}
.row{display:flex;gap:.9rem;flex-wrap:wrap}
.row .field{flex:1 1 160px;margin-bottom:1rem}
.row .grow{flex:2 1 220px}
.row .port{flex:0 0 90px}
.row .sec{flex:1 1 160px}
.check{display:flex;align-items:center;gap:.5rem;font-size:.9rem;font-weight:500;align-self:center}
.check input{width:auto;margin:0}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  border:1px solid transparent;border-radius:var(--radius-sm);padding:.6rem 1rem;
  font:inherit;font-weight:600;cursor:pointer;transition:.15s;white-space:nowrap}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-sm{padding:.4rem .7rem;font-size:.85rem}
.btn-block{width:100%}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover:not(:disabled){background:#2f4ec9}
.btn-secondary{background:var(--brand-soft);color:var(--brand)}
.btn-secondary:hover:not(:disabled){background:#e0e7ff}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover:not(:disabled){background:var(--bg)}
.link{background:none;border:0;color:var(--brand);font:inherit;cursor:pointer;padding:0;text-decoration:underline}
.link.danger{color:var(--red)}
.actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1rem}

/* ---------- CSV drop ---------- */
.csv-drop{border:1.5px dashed var(--line-2);border-radius:var(--radius-sm);
  padding:1rem;text-align:center;background:#fafbfe;transition:.15s;cursor:pointer}
.csv-drop:hover,.csv-drop.drag{border-color:var(--brand);background:var(--brand-soft)}
.csv-drop small{display:block;color:var(--muted);margin-top:.35rem;font-weight:400}
.csv-info{margin-top:.75rem;padding:.6rem .8rem;border-radius:var(--radius-sm);
  background:var(--green-soft);border:1px solid #cdeeda;font-size:.88rem}
.csv-info .cols{margin-top:.35rem}
.summary{margin-top:1rem;padding:.7rem .85rem;border-radius:var(--radius-sm);background:var(--bg);
  border:1px solid var(--line);font-size:.9rem}
.summary.has{background:var(--brand-soft);border-color:#d7ddff;color:var(--ink)}
.summary b{color:var(--brand)}

/* ---------- Editor ---------- */
.editor-toolbar{display:flex;flex-wrap:wrap;gap:.2rem;border:1px solid var(--line-2);
  border-bottom:0;border-radius:var(--radius-sm) var(--radius-sm) 0 0;padding:.35rem;background:#fafbfe}
.editor-toolbar button{background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:.3rem .55rem;font:inherit;font-size:.85rem;cursor:pointer;color:var(--ink)}
.editor-toolbar button:hover{background:var(--brand-soft);border-color:var(--brand)}
.editor-toolbar .sep{width:1px;background:var(--line);margin:0 .2rem}
.editor{min-height:200px;border:1px solid var(--line-2);border-radius:0 0 var(--radius-sm) var(--radius-sm);
  padding:.8rem;background:#fff;overflow-y:auto;max-height:420px}
.editor:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.editor p{margin:0 0 .6em}
.editor img{max-width:100%;height:auto}
.sig-source{width:100%;min-height:200px;max-height:420px;box-sizing:border-box;
  border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:.8rem;
  font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#fff;color:var(--ink);resize:vertical}
.sig-source:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* ---------- Merge chips ---------- */
.merge{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin:.2rem 0 1rem}
.merge-label{font-size:.82rem;font-weight:600;color:var(--muted)}
.merge-buttons{display:flex;gap:.35rem;flex-wrap:wrap}
.chip{background:var(--brand-soft);color:var(--brand);border:1px solid #d7ddff;border-radius:999px;
  padding:.25rem .7rem;font:inherit;font-size:.82rem;font-weight:600;cursor:pointer;font-family:ui-monospace,monospace}
.chip:hover{background:#e0e7ff}

/* ---------- Attachment ---------- */
.attach-info{display:flex;align-items:center;gap:.7rem;margin-top:.6rem;padding:.5rem .7rem;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);font-size:.88rem}
.attach-info img{width:42px;height:42px;object-fit:cover;border-radius:6px;border:1px solid var(--line)}

/* ---------- Save template row ---------- */
.save-tpl{display:flex;gap:.6rem;margin-top:.5rem}
.save-tpl input{margin-top:0}

/* ---------- Templates list ---------- */
.tpl-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.9rem;margin-top:1rem}
.tpl-item{border:1px solid var(--line);border-radius:var(--radius-sm);padding:.9rem;background:#fafbfe}
.tpl-item h4{margin:0 0 .25rem;font-size:.98rem}
.tpl-item .subj{color:var(--muted);font-size:.85rem;margin-bottom:.6rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tpl-item .tpl-actions{display:flex;gap:.5rem}
.tpl-empty{color:var(--muted);padding:1rem 0}

/* ---------- Test log ---------- */
.test-row{align-items:center}
.test-row input{margin-top:0;flex:1}
.log{background:#0f1525;color:#d7e0f5;border-radius:var(--radius-sm);padding:.85rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem;white-space:pre-wrap;
  max-height:260px;overflow:auto;margin-top:1rem}

/* ---------- Alerts / toast ---------- */
.alert{padding:.65rem .85rem;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:1rem}
.alert-error{background:var(--red-soft);color:var(--red);border:1px solid #f4c6d8}
.toast{position:fixed;left:50%;bottom:1.5rem;transform:translateX(-50%) translateY(120%);
  background:#0f1525;color:#fff;padding:.7rem 1.1rem;border-radius:999px;box-shadow:var(--shadow);
  font-size:.9rem;font-weight:600;z-index:60;transition:transform .25s ease;max-width:90vw}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.ok{background:var(--green)}
.toast.err{background:var(--red)}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(16,24,40,.5);display:flex;align-items:center;
  justify-content:center;padding:1rem;z-index:50;backdrop-filter:blur(2px)}
.modal[hidden]{display:none}
.modal-box{background:#fff;border-radius:var(--radius);width:100%;max-width:620px;max-height:90vh;
  display:flex;flex-direction:column;box-shadow:0 24px 60px rgba(16,24,40,.3);animation:pop .18s ease}
@keyframes pop{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0}
.modal-x{background:none;border:0;font-size:1.5rem;line-height:1;color:var(--muted);cursor:pointer}
.modal-body{padding:1.25rem;overflow:auto}
.modal-foot{display:flex;justify-content:flex-end;gap:.6rem;padding:1rem 1.25rem;border-top:1px solid var(--line)}
.preview-meta{display:flex;flex-direction:column;gap:.3rem;margin-bottom:1rem;font-size:.92rem}
.preview-frame{border:1px solid var(--line);border-radius:var(--radius-sm);padding:1rem;background:#fff;max-height:50vh;overflow:auto}
.preview-frame img{max-width:100%}

/* ---------- Progress / results ---------- */
.progress{height:10px;background:var(--bg);border-radius:999px;overflow:hidden;border:1px solid var(--line)}
.progress-bar{height:100%;width:0;background:var(--brand);transition:width .3s ease}
.progress-bar.done{background:var(--green)}
.send-status{margin:.8rem 0}
.send-results{max-height:38vh;overflow:auto;font-size:.86rem}
.send-results .res{display:flex;justify-content:space-between;gap:1rem;padding:.3rem .5rem;border-bottom:1px solid var(--line)}
.send-results .res.fail{background:var(--red-soft)}
.send-results .res .tag{font-weight:700}
.send-results .res.ok .tag{color:var(--green)}
.send-results .res.fail .tag{color:var(--red)}
.stat-line{display:flex;gap:1rem;margin-bottom:.8rem}
.stat{flex:1;text-align:center;padding:.6rem;border-radius:var(--radius-sm);background:var(--bg)}
.stat .n{font-size:1.5rem;font-weight:700;display:block}
.stat.ok .n{color:var(--green)} .stat.fail .n{color:var(--red)} .stat.tot .n{color:var(--brand)}

/* ---------- Queue ---------- */
.qstats{display:flex;gap:.8rem;margin:.4rem 0 1rem;flex-wrap:wrap}
.qstat{flex:1;min-width:110px;text-align:center;padding:.7rem;border-radius:var(--radius-sm);background:var(--bg);color:var(--muted);font-size:.85rem}
.qstat .n{display:block;font-size:1.5rem;font-weight:700;color:var(--ink)}
.qstat.ok .n{color:var(--green)} .qstat.fail .n{color:var(--red)}
.progress.sm{height:6px;margin-top:.4rem}
.qcamps{margin-top:1.2rem;display:flex;flex-direction:column;gap:.7rem}
.qcamp{border:1px solid var(--line);border-radius:var(--radius-sm);padding:.7rem .9rem;background:#fff}
.qcamp-head{display:flex;justify-content:space-between;align-items:center;gap:.8rem;margin-bottom:.2rem}
.badge{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;padding:.15rem .5rem;border-radius:999px;background:var(--bg);color:var(--muted)}
.badge.sending{background:var(--amber-soft);color:var(--amber)}
.badge.done{background:var(--green-soft);color:var(--green)}
.badge.cancelled{background:var(--red-soft);color:var(--red)}
.qcamp-foot{margin-top:.5rem}
.rp-filters{display:flex;gap:.4rem;margin:.6rem 0}
.rp-filter{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.3rem .8rem;font:inherit;font-size:.85rem;cursor:pointer;color:var(--muted)}
.rp-filter.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);font-weight:600}

/* ---------- Auth pages ---------- */
.auth-page{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:1.25rem;
  background:radial-gradient(1200px 500px at 50% -10%,#e9edff 0,var(--bg) 60%)}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:2rem;width:100%;max-width:400px;text-align:center}
.auth-card h1{font-size:1.4rem;margin-bottom:.25rem}
.auth-logo{font-size:2.2rem;margin-bottom:.4rem}
.auth-sub{color:var(--muted);font-size:.9rem;margin:0 0 1.3rem}
.auth-card label{display:block;text-align:left;font-weight:600;font-size:.85rem;margin-bottom:.9rem}
.auth-card .btn{margin-top:.4rem}