/* =====================================================================
   BulkMailer — admin stylesheet.  No CDN, no external fonts.
   ===================================================================== */

:root{
  --bg:#f4f6fb;
  --panel:#ffffff;
  --ink:#111827;
  --ink-2:#4b5563;
  --ink-3:#8b93a5;
  --line:#e4e8f0;
  --line-2:#eef1f7;
  --brand:#3b5bdb;
  --brand-2:#2f49b0;
  --brand-soft:#eef2ff;
  --ok:#0f9d58;
  --ok-soft:#e7f6ee;
  --warn:#c2751a;
  --warn-soft:#fdf3e4;
  --err:#c0392b;
  --err-soft:#fdeceb;
  --info:#0b7285;
  --info-soft:#e6f5f7;
  --radius:10px;
  --radius-sm:7px;
  --shadow:0 1px 2px rgba(16,24,40,.05), 0 8px 24px -12px rgba(16,24,40,.18);
  --shadow-sm:0 1px 2px rgba(16,24,40,.06);
  --sidebar-w:246px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em;line-height:1.25}
p{margin:0 0 10px}
code,kbd,pre{font-family:var(--mono);font-size:12.5px}

/* ---------- layout ---------- */
.shell{display:flex;min-height:100vh}

.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  background:#101528;color:#c3c9d9;
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;
}
.brand{
  display:flex;align-items:center;gap:11px;
  padding:18px 18px 16px;border-bottom:1px solid rgba(255,255,255,.07);
}
.brand__mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 34px;
  background:linear-gradient(135deg,#4c6ef5,#3b5bdb);
  color:#fff;display:grid;place-items:center;
  box-shadow:0 4px 12px -3px rgba(76,110,245,.6);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{color:#fff;font-size:14.5px;font-weight:650}
.brand__text small{color:#7c86a0;font-size:11px;letter-spacing:.04em;text-transform:uppercase}

.nav{padding:12px 10px;display:flex;flex-direction:column;gap:2px;flex:1;overflow-y:auto}
.nav__item{
  display:flex;align-items:center;gap:11px;
  padding:9.5px 12px;border-radius:var(--radius-sm);
  color:#b9c1d4;font-weight:520;font-size:13.5px;
  transition:background .12s,color .12s;
}
.nav__item:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.nav__item.is-active{background:var(--brand);color:#fff;box-shadow:0 4px 14px -6px rgba(59,91,219,.9)}
.nav__item .i{flex:0 0 auto;opacity:.9}
.nav__item.is-active .i{opacity:1}

.sidebar__foot{padding:12px 14px 16px;border-top:1px solid rgba(255,255,255,.07)}
.userbox{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{
  width:32px;height:32px;border-radius:50%;flex:0 0 32px;
  background:#2b3350;color:#fff;display:grid;place-items:center;
  font-weight:650;font-size:13px;
}
.userbox__meta{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.userbox__meta strong{color:#fff;font-size:13px;font-weight:600}
.userbox__meta small{color:#7c86a0;font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- main ---------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}

.topbar{
  background:var(--panel);border-bottom:1px solid var(--line);
  padding:16px 26px;display:flex;align-items:center;gap:16px;
  position:sticky;top:0;z-index:20;
}
.topbar__titles{flex:1;min-width:0}
.topbar__titles h1{font-size:19px}
.topbar__titles p{margin:2px 0 0;color:var(--ink-3);font-size:12.5px}
.topbar__actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}

.burger{
  display:none;width:38px;height:38px;flex:0 0 38px;
  border:1px solid var(--line);background:#fff;border-radius:var(--radius-sm);
  cursor:pointer;padding:0;place-items:center;
}
.burger span{display:block;width:17px;height:1.8px;background:var(--ink-2);margin:3.2px auto;border-radius:2px;transition:.2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.content{padding:24px 26px 34px;flex:1;max-width:1400px;width:100%}

.foot{
  padding:16px 26px 26px;color:var(--ink-3);font-size:12px;
  display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;
  border-top:1px solid var(--line-2);margin-top:8px;
}
.foot__warn{max-width:640px}

.overlay{position:fixed;inset:0;background:rgba(16,20,35,.45);z-index:30;backdrop-filter:blur(1px)}

/* ---------- cards ---------- */
.card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  margin-bottom:20px;overflow:hidden;
}
.card__head{
  padding:15px 18px;border-bottom:1px solid var(--line-2);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.card__head h2{font-size:14.5px;flex:1}
.card__head p{margin:2px 0 0;font-size:12.5px;color:var(--ink-3);width:100%}
.card__body{padding:18px}
.card__foot{padding:13px 18px;border-top:1px solid var(--line-2);background:#fafbfe;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

.grid{display:grid;gap:18px}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--2-1{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.grid--1-2{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}

/* ---------- stat tiles ---------- */
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 17px;box-shadow:var(--shadow-sm)}
.stat__label{display:flex;align-items:center;gap:7px;color:var(--ink-3);font-size:11.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:9px}
.stat__value{font-size:26px;font-weight:680;letter-spacing:-.02em;line-height:1}
.stat__meta{margin-top:7px;font-size:12px;color:var(--ink-3)}
.stat--brand .stat__value{color:var(--brand)}
.stat--ok .stat__value{color:var(--ok)}
.stat--warn .stat__value{color:var(--warn)}
.stat--err .stat__value{color:var(--err)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:8.5px 14px;border-radius:var(--radius-sm);
  border:1px solid transparent;background:var(--brand);color:#fff;
  font:inherit;font-size:13.2px;font-weight:560;cursor:pointer;
  transition:background .13s,border-color .13s,color .13s,box-shadow .13s;
  white-space:nowrap;
}
.btn:hover{background:var(--brand-2);text-decoration:none;color:#fff}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn--ghost:hover{background:#f7f8fc;color:var(--ink);border-color:#cdd4e2}
.btn--dark{background:#101528}
.btn--dark:hover{background:#1b2340}
.btn--ok{background:var(--ok)}
.btn--ok:hover{background:#0c8150}
.btn--warn{background:var(--warn)}
.btn--warn:hover{background:#a2600f}
.btn--err{background:var(--err)}
.btn--err:hover{background:#a13024}
.btn--sm{padding:6px 10px;font-size:12.4px}
.btn--block{width:100%}
.btn--icon{padding:7px;width:32px;height:32px}

/* ---------- forms ---------- */
.field{margin-bottom:15px}
.field:last-child{margin-bottom:0}
.field label,.field .label{display:block;font-weight:600;font-size:12.6px;margin-bottom:5px;color:var(--ink)}
.field .hint{display:block;font-weight:400;color:var(--ink-3);font-size:11.8px;margin-top:4px}
.input,.select,.textarea{
  width:100%;padding:9px 11px;border:1px solid #d7dce8;border-radius:var(--radius-sm);
  font:inherit;font-size:13.4px;background:#fff;color:var(--ink);
  transition:border-color .13s,box-shadow .13s;
}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,91,219,.13);
}
.textarea{min-height:110px;resize:vertical;line-height:1.6}
.textarea--code{font-family:var(--mono);font-size:12.5px;min-height:260px}
.input--sm{padding:6px 9px;font-size:12.8px;width:auto}
.select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.4' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 11px center;padding-right:32px}

.row{display:flex;gap:12px;flex-wrap:wrap}
.row--tight{gap:8px}
.row > *{min-width:0}
.row .field{flex:1 1 200px;margin-bottom:0}
.inline{display:flex;align-items:center;gap:8px}
.inline--between{justify-content:space-between}

.check{display:flex;align-items:flex-start;gap:9px;cursor:pointer;font-size:13.2px}
.check input{width:16px;height:16px;margin:2px 0 0;accent-color:var(--brand);flex:0 0 16px}
.check span small{display:block;color:var(--ink-3);font-size:11.8px}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.2px}
table.tbl th{
  text-align:left;padding:10px 14px;background:#fafbfe;
  border-bottom:1px solid var(--line);color:var(--ink-3);
  font-size:11.5px;font-weight:650;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;
}
table.tbl td{padding:11px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.tbl tbody tr:last-child td{border-bottom:0}
table.tbl tbody tr:hover{background:#fafbff}
table.tbl .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
table.tbl .mono{font-family:var(--mono);font-size:12.2px}
.tbl__actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}

.empty{padding:44px 22px;text-align:center;color:var(--ink-3)}
.empty strong{display:block;color:var(--ink-2);font-size:14.5px;margin-bottom:5px}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:999px;font-size:11.5px;font-weight:620;
  background:var(--line-2);color:var(--ink-2);white-space:nowrap;
}
.badge--draft{background:#f1f3f8;color:#5a6377}
.badge--queued{background:var(--info-soft);color:var(--info)}
.badge--sending{background:var(--brand-soft);color:var(--brand)}
.badge--paused{background:var(--warn-soft);color:var(--warn)}
.badge--completed{background:var(--ok-soft);color:var(--ok)}
.badge--cancelled{background:var(--err-soft);color:var(--err)}
.badge--failed{background:var(--err-soft);color:var(--err)}
.badge--active{background:var(--ok-soft);color:var(--ok)}
.badge--unsubscribed{background:var(--warn-soft);color:var(--warn)}
.badge--bounced{background:var(--err-soft);color:var(--err)}
.badge--on{background:var(--ok-soft);color:var(--ok)}
.badge--off{background:var(--line-2);color:var(--ink-3)}

/* ---------- flash ---------- */
.flash{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 15px;border-radius:var(--radius-sm);margin-bottom:16px;
  font-size:13.4px;border:1px solid transparent;
}
.flash--ok{background:var(--ok-soft);border-color:#bfe6d0;color:#0a6b3d}
.flash--error{background:var(--err-soft);border-color:#f6cfcb;color:#8f2b20}
.flash--warn{background:var(--warn-soft);border-color:#f2ddb8;color:#8a530e}
.flash--info{background:var(--info-soft);border-color:#bfe4e9;color:#0a5a68}
.flash .i{margin-top:2px;flex:0 0 auto}

/* ---------- progress ---------- */
.bar{height:9px;background:var(--line-2);border-radius:999px;overflow:hidden}
.bar__fill{height:100%;background:linear-gradient(90deg,#4c6ef5,#3b5bdb);border-radius:999px;transition:width .35s ease}
.bar__fill--ok{background:linear-gradient(90deg,#16b768,#0f9d58)}
.bar__fill--err{background:linear-gradient(90deg,#e05a4c,#c0392b)}
.bar--lg{height:13px}

/* ---------- misc ---------- */
.note{
  padding:13px 15px;border-radius:var(--radius-sm);
  background:var(--warn-soft);border:1px solid #f2ddb8;color:#7d4a0c;
  font-size:13px;display:flex;gap:10px;align-items:flex-start;
}
.note--info{background:var(--info-soft);border-color:#bfe4e9;color:#0a5a68}
.note--err{background:var(--err-soft);border-color:#f6cfcb;color:#8f2b20}
.note .i{margin-top:2px;flex:0 0 auto}
.note strong{font-weight:650}

.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600}
.muted{color:var(--ink-3)}
.small{font-size:12.2px}
.mono{font-family:var(--mono)}
.strong{font-weight:650}
.mt0{margin-top:0}.mt1{margin-top:8px}.mt2{margin-top:16px}.mt3{margin-top:24px}
.mb0{margin-bottom:0}.mb1{margin-bottom:8px}.mb2{margin-bottom:16px}.mb3{margin-bottom:24px}
.nowrap{white-space:nowrap}
.tnum{font-variant-numeric:tabular-nums}
.pre{font-family:var(--mono);font-size:12.2px;background:#0f1424;color:#d6dcea;padding:13px 15px;border-radius:var(--radius-sm);overflow-x:auto;white-space:pre-wrap;word-break:break-word;max-height:340px;margin:0}
.pre--light{background:#f7f8fc;color:var(--ink-2);border:1px solid var(--line)}
.sep{height:1px;background:var(--line-2);margin:18px 0}
.tag{display:inline-block;padding:2px 8px;border-radius:5px;background:var(--line-2);font-family:var(--mono);font-size:11.8px;color:var(--ink-2);margin:0 5px 5px 0}

/* ---------- preview iframe ---------- */
.preview-frame{
  width:100%;height:440px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
}
.preview-tabs{display:flex;gap:4px;margin-bottom:11px;border-bottom:1px solid var(--line-2)}
.preview-tab{
  padding:8px 13px;border:0;background:none;font:inherit;font-size:12.8px;font-weight:600;
  color:var(--ink-3);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;
}
.preview-tab.is-active{color:var(--brand);border-bottom-color:var(--brand)}
.preview-pane[hidden]{display:none}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal__panel{
  background:#fff;border-radius:12px;width:100%;max-width:560px;
  box-shadow:0 24px 60px -12px rgba(16,24,40,.35);max-height:88vh;overflow:auto;
  position:relative;z-index:41;
}
.modal__head{padding:17px 20px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:12px}
.modal__head h3{font-size:15.5px;flex:1}
.modal__body{padding:20px}
.modal__foot{padding:14px 20px;border-top:1px solid var(--line-2);background:#fafbfe;display:flex;gap:10px;justify-content:flex-end}
.modal__x{border:0;background:none;cursor:pointer;color:var(--ink-3);padding:4px;line-height:0;border-radius:6px}
.modal__x:hover{background:var(--line-2);color:var(--ink)}

/* ---------- login ---------- */
.auth{
  min-height:100vh;display:grid;place-items:center;padding:24px;
  background:linear-gradient(160deg,#101528 0%,#1b2340 55%,#252f52 100%);
}
.auth__card{
  width:100%;max-width:412px;background:#fff;border-radius:14px;
  box-shadow:0 30px 70px -18px rgba(0,0,0,.5);overflow:hidden;
}
.auth__head{padding:30px 30px 22px;text-align:center}
.auth__mark{
  width:50px;height:50px;border-radius:13px;margin:0 auto 15px;
  background:linear-gradient(135deg,#4c6ef5,#3b5bdb);color:#fff;
  display:grid;place-items:center;box-shadow:0 10px 26px -8px rgba(76,110,245,.7);
}
.auth__head h1{font-size:20px;margin-bottom:5px}
.auth__head p{color:var(--ink-3);font-size:13px;margin:0}
.auth__body{padding:0 30px 30px}
.auth__foot{padding:15px 30px;background:#fafbfe;border-top:1px solid var(--line-2);text-align:center;font-size:12px;color:var(--ink-3)}

/* ---------- steps ---------- */
.steps{display:flex;gap:7px;margin-bottom:22px;flex-wrap:wrap}
.step{
  display:flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:12.6px;font-weight:560;color:var(--ink-3);
}
.step.is-active{background:var(--brand-soft);border-color:#c3cdfa;color:var(--brand)}
.step.is-done{background:var(--ok-soft);border-color:#bfe6d0;color:var(--ok)}
.step__n{width:19px;height:19px;border-radius:50%;background:var(--line-2);display:grid;place-items:center;font-size:11px;font-weight:700}
.step.is-active .step__n{background:var(--brand);color:#fff}
.step.is-done .step__n{background:var(--ok);color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .grid--2-1,.grid--1-2{grid-template-columns:1fr}
}
@media (max-width:900px){
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;z-index:35;
    transform:translateX(-100%);transition:transform .22s ease;
    box-shadow:0 0 40px rgba(0,0,0,.3);
  }
  .sidebar.is-open{transform:translateX(0)}
  .burger{display:grid}
  .content{padding:18px 15px 28px}
  .topbar{padding:13px 15px}
  .grid--4,.grid--3,.grid--2{grid-template-columns:1fr}
  .foot{padding:14px 15px 22px}
}
@media (max-width:560px){
  .topbar__actions{width:100%}
  .topbar{flex-wrap:wrap}
  .card__body{padding:14px}
  .content{padding:14px 11px 24px}
}
@media print{
  .sidebar,.topbar__actions,.burger,.foot{display:none}
  .main{width:100%}
}