/* Sendline — admin UI
   Palette borrows from airmail envelopes: postal blue for actions, airmail red for
   danger, and the striped envelope edge as the one decorative element. */
:root{
  --bg:#EEF1F4; --surface:#FFFFFF; --ink:#142033; --ink-2:#22324A; --muted:#5A6678;
  --line:#DCE2E9; --line-2:#C9D2DC;
  --blue:#1E4FA3; --blue-dk:#173E82; --blue-tint:#E7EEFA;
  --red:#C2362B; --red-tint:#FBEAE8;
  --green:#1F7A52; --green-tint:#E5F4EC;
  --amber:#9A6200; --amber-tint:#FDF2DD;
  --font:"IBM Plex Sans",-apple-system,"Segoe UI",Roboto,sans-serif;
  --r:10px; --r-sm:7px;
  --stripe:repeating-linear-gradient(-45deg,var(--red) 0 9px,#fff 9px 18px,var(--blue) 18px 27px,#fff 27px 36px);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0;line-height:1.25;font-weight:600}
h1{font-size:24px}
h2{font-size:17px}
p{margin:0}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px}
small,.muted{color:var(--muted)}
code{font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:5px;padding:1px 6px}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.side{background:var(--ink);color:#C9D3E0;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.side::before{content:"";display:block;height:8px;background:var(--stripe);flex:none}
.side-top{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 14px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:18px}
.logo:hover{text-decoration:none}
.side-toggle{display:none;background:none;border:0;color:#fff;cursor:pointer;padding:6px}
.side-nav{display:flex;flex-direction:column;gap:2px;padding:6px 12px 16px;flex:1}
.side-nav a{display:flex;align-items:center;gap:11px;color:#C9D3E0;padding:9px 12px;border-radius:var(--r-sm);font-weight:500}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.side-nav a.on{background:rgba(255,255,255,.1);color:#fff}
.side-nav a.on svg{color:#8FB0EA}
.side-user{margin-top:auto;border-top:1px solid rgba(255,255,255,.1);padding:14px 12px 0;display:flex;flex-direction:column;gap:6px}
.side-user strong{display:block;color:#fff;font-weight:500}
.side-user small{color:#93A0B3;word-break:break-all}
.link-btn{background:none;border:0;padding:0;color:#8FB0EA;font:inherit;cursor:pointer}
.link-btn:hover{text-decoration:underline}

.main{padding:30px 34px 60px;min-width:0;max-width:1240px}

/* ---------- page head ---------- */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-head p{color:var(--muted);margin-top:4px}
.actions{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:500 14px/1 var(--font);padding:10px 16px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:var(--surface);color:var(--ink);cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--ink-2);text-decoration:none}
.btn-primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dk);border-color:var(--blue-dk)}
.btn-danger{color:var(--red);border-color:#E7BDB8}
.btn-danger:hover{background:var(--red);border-color:var(--red);color:#fff}
.btn-sm{padding:7px 11px;font-size:13px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card + .card{margin-top:18px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid-2 .card + .card{margin-top:0}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.stat b{display:block;font-size:26px;font-weight:600;line-height:1.1}
.stat span{color:var(--muted);font-size:13.5px}
.stat.good b{color:var(--green)} .stat.warn b{color:var(--amber)} .stat.bad b{color:var(--red)}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label,.label{font-weight:500;font-size:14px}
.field small{font-size:12.5px}
.input,select.input,textarea.input{width:100%;font:15px var(--font);color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:9px 11px}
.input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-tint)}
.input-sm{padding:7px 9px;font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.checks{display:flex;flex-wrap:wrap;gap:8px}
.check{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px;cursor:pointer;background:#fff}
.check:has(input:checked){border-color:var(--blue);background:var(--blue-tint)}
.radio-row{display:flex;flex-direction:column;gap:8px}
.radio{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;cursor:pointer}
.radio:has(input:checked){border-color:var(--blue);background:var(--blue-tint)}
.radio input{margin-top:4px}
.radio small{display:block}
.form-foot{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:6px}

/* ---------- filters + table ---------- */
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.filters .input{width:auto;min-width:150px}
.filters .search{flex:1;min-width:220px}
.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-weight:500;color:var(--muted);font-size:13px;padding:11px 14px;border-bottom:1px solid var(--line);background:#F7F9FB;white-space:nowrap}
.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tr:hover td{background:#FAFBFD}
.tbl .w-check{width:38px}
.tbl .num{text-align:right;white-space:nowrap}
.tbl .email{font-weight:500}
.tbl .sub{display:block;color:var(--muted);font-size:13px}
.bulkbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--line);background:#F7F9FB}
.bulkbar .count{font-size:13.5px;color:var(--muted);margin-right:auto}

.badge{display:inline-block;font-size:12px;font-weight:500;padding:3px 9px;border-radius:999px;white-space:nowrap}
.badge-subscribed{background:var(--green-tint);color:var(--green)}
.badge-unsubscribed{background:#EEF0F3;color:var(--muted)}
.badge-bounced{background:var(--red-tint);color:var(--red)}
.badge-done{background:var(--green-tint);color:var(--green)}
.badge-failed{background:var(--red-tint);color:var(--red)}
.badge-uploaded{background:var(--amber-tint);color:var(--amber)}
.chip{display:inline-block;font-size:12px;padding:2px 8px;border-radius:5px;background:var(--blue-tint);color:var(--blue-dk);margin:2px 4px 2px 0}

.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.pager .actions{gap:6px}

.empty{text-align:center;padding:46px 20px}
.empty h2{margin-bottom:6px}
.empty p{color:var(--muted);margin-bottom:16px}

/* ---------- flash ---------- */
.flash{padding:12px 16px;border-radius:var(--r-sm);margin-bottom:16px;border:1px solid;font-size:14.5px}
.flash-success{background:var(--green-tint);border-color:#BFE3CF;color:#165C3D}
.flash-error{background:var(--red-tint);border-color:#EFC5C0;color:#8E2219}
.flash-info{background:var(--blue-tint);border-color:#C6D6F2;color:var(--blue-dk)}

/* ---------- import ---------- */
.steps{display:flex;gap:6px;margin-bottom:20px;flex-wrap:wrap;list-style:none;padding:0}
.steps li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding-right:14px}
.steps li b{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12.5px;border:1px solid var(--line-2);background:#fff}
.steps li.on{color:var(--ink);font-weight:500}
.steps li.on b{background:var(--blue);border-color:var(--blue);color:#fff}
.steps li.done b{background:var(--green);border-color:var(--green);color:#fff}
.dropzone{display:block;border:2px dashed var(--line-2);border-radius:var(--r);padding:34px 20px;text-align:center;background:#FAFBFD;cursor:pointer}
.dropzone:hover,.dropzone.drag{border-color:var(--blue);background:var(--blue-tint)}
.dropzone strong{display:block;font-size:16px;margin:8px 0 4px}
.dropzone input{position:absolute;opacity:0;width:1px;height:1px}
.dropzone .file-name{margin-top:10px;font-weight:500;color:var(--blue-dk)}
.map-tbl td:first-child{font-weight:500}
.map-tbl .samples{color:var(--muted);font-size:13px;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.map-tbl select{min-width:220px}
.map-tbl tr.mapped td{background:#FAFCFF}

.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:14px}
.kv dt{color:var(--muted)} .kv dd{margin:0}

/* ---------- auth ---------- */
.auth{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.auth-card::before{content:"";display:block;height:8px;background:var(--stripe)}
.auth-body{padding:28px}
.auth-body .logo{color:var(--ink);margin-bottom:18px}
.auth-body h1{font-size:21px;margin-bottom:4px}
.auth-body > p{color:var(--muted);margin-bottom:20px}
.auth-body .btn{width:100%;padding:12px}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{position:sticky;top:0;height:auto;z-index:20}
  .side-top{padding:12px 16px}
  .side-toggle{display:block}
  .side-nav{display:none;padding:4px 12px 14px}
  .side.open .side-nav{display:flex}
  .side-user{margin-top:10px}
  .main{padding:22px 16px 50px}
  .grid-2,.form-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr 1fr;gap:10px}
  .stat b{font-size:22px}
  h1{font-size:21px}
  .filters .input,.filters .search{width:100%;min-width:0;flex:1 1 100%}
  .page-head .actions{width:100%}
  .page-head .actions .btn{flex:1}
  .map-tbl select{min-width:170px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}