:root{
  --bg:#0b0f17; --panel:#121826; --panel2:#0f1420; --line:#1f2937;
  --text:#e6edf6; --muted:#8a97a8; --accent:#4f8cff; --accent2:#1f6feb;
  --good:#2fbf71; --good-bg:#10331f; --warn:#e0a526; --err:#ef5350;
  --radius:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:15px;line-height:1.5;
  padding-bottom:env(safe-area-inset-bottom);
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}
.small{font-size:13px}
.nowrap{white-space:nowrap}
.num{text-align:right;font-variant-numeric:tabular-nums}

/* top bar */
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top));
  background:rgba(11,15,23,.85);backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{font-weight:700;letter-spacing:.2px;display:flex;align-items:center;gap:8px}
.brand.big{font-size:20px;justify-content:center;margin-bottom:6px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.topbar nav{display:flex;gap:6px;flex-wrap:wrap}
.topbar nav a{padding:7px 12px;border-radius:10px;color:var(--text);font-weight:600;font-size:14px}
.topbar nav a.active{background:var(--accent2);color:#fff}
.topbar nav a.muted{color:var(--muted);font-weight:500}

.wrap{max-width:840px;margin:0 auto;padding:18px 16px 60px}
h1{font-size:24px;margin:.3em 0 .2em}
h2{font-size:18px;margin:1.2em 0 .5em}

.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;margin:14px 0;
}
.card.empty{text-align:center;color:var(--muted)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 12px;text-align:center}
.stat .num{font-size:26px;font-weight:700}
.stat .lbl{color:var(--muted);font-size:12px;margin-top:2px}
@media(max-width:560px){.stats{grid-template-columns:repeat(2,1fr)}}

.row-between{display:flex;align-items:center;justify-content:space-between;gap:10px}

/* tables */
table{width:100%;border-collapse:collapse}
.list{padding:0;overflow:hidden}
.list table thead th{
  text-align:left;color:var(--muted);font-size:12px;font-weight:600;
  padding:12px 14px;border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.4px;
}
.list table tbody td{padding:13px 14px;border-bottom:1px solid var(--line)}
.list table tbody tr{cursor:pointer}
.list table tbody tr:hover{background:var(--panel2)}
.list table tbody tr:last-child td{border-bottom:0}
.subject{font-weight:600;color:var(--text)}

.pill{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}
.pill.good{background:var(--good-bg);color:var(--good)}
.pill.none{background:#21262d;color:var(--muted)}
.badge{display:inline-block;margin-left:6px;padding:2px 7px;border-radius:6px;font-size:11px;font-weight:600}
.badge.err{background:#3a1115;color:var(--err)}

/* recipient cards */
.recipient .rec-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:flex-start}
.rec-email{font-weight:600;font-size:16px}
.rec-stats{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.kv{font-weight:700}
.kv .muted{font-weight:500;font-size:12px}
details{margin-top:12px}
summary{cursor:pointer;color:var(--accent);font-size:14px;font-weight:600}
.events{margin-top:10px;font-size:13px}
.events th{text-align:left;color:var(--muted);font-weight:600;padding:6px 8px;border-bottom:1px solid var(--line)}
.events td{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.events td.link{word-break:break-all;max-width:340px}
.preview{background:#fff;color:#111;border-radius:10px;padding:14px;margin-top:12px;overflow:auto}

/* forms */
label{display:block;margin:12px 0;font-weight:600}
input[type=text],input[type=password],textarea{
  width:100%;margin-top:6px;padding:12px 13px;font-size:16px;
  background:var(--panel2);border:1px solid var(--line);border-radius:10px;color:var(--text);
  font-family:inherit;
}
input:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{resize:vertical}
button,.btn{
  display:inline-block;background:var(--accent2);color:#fff;border:0;border-radius:10px;
  padding:12px 18px;font-size:15px;font-weight:700;cursor:pointer;
}
button:hover,.btn:hover{background:var(--accent);text-decoration:none}
.btn.small{padding:8px 13px;font-size:13px}

.alert{padding:11px 14px;border-radius:10px;margin:12px 0;font-size:14px}
.alert.ok{background:var(--good-bg);color:var(--good)}
.alert.warn{background:#3a2c0d;color:var(--warn)}
.alert.err{background:#3a1115;color:var(--err)}

/* login */
.center{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:20px}
.login{max-width:340px;width:100%;text-align:center}
.login input{margin-bottom:12px}
.login button{width:100%}