:root {
  --bg: #f4f6f8; --card: #fff; --ink: #16202a; --muted: #64748b; --line: #dde3ea;
  --brand: #0b5fa5; --ok: #0f7b46; --bad: #b42318; --warn: #b45309;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1419; --card: #171f27; --ink: #e6edf3; --muted: #93a1b1; --line: #2a3541;
          --brand: #4da3e8; --ok: #37b87c; --bad: #f97066; --warn: #f5b64c; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
       font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }

header { display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
         padding: 10px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.brand small { font-weight: 400; color: var(--muted); margin-left: 6px; }
header nav { margin-left: auto; display: flex; align-items: center; gap: 16px; }
header nav a { color: var(--brand); text-decoration: none; }
.who { color: var(--muted); }
.badge { font-size: 11px; font-weight: 700; letter-spacing: .5px; padding: 3px 8px; border-radius: 20px; }
.badge.sandbox { background: #fff4d6; color: #7a5a00; }
.badge.live { background: #fde3e1; color: var(--bad); }

main { max-width: 1180px; margin: 22px auto; padding: 0 20px; }
h1 { font-size: 22px; margin: 0; } h2 { font-size: 15px; margin: 0 0 10px; color: var(--muted);
     text-transform: uppercase; letter-spacing: .6px; }
.toolbar { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.toolbar .btn { margin-left: auto; }
.toolbar .btn + .btn { margin-left: 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
        padding: 16px; margin-bottom: 16px; }
.card.narrow { max-width: 420px; margin: 60px auto; }
.card.ok { border-left: 4px solid var(--ok); }
.card.bad { border-left: 4px solid var(--bad); }
.card.warn { border-left: 4px solid var(--warn); }
.card.ok > div, .card.bad > div { display: flex; gap: 10px; margin-bottom: 6px; }
.card.ok span, .card.bad span { color: var(--muted); min-width: 160px; }

label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
input, select { width: 100%; padding: 8px 10px; font: inherit; color: var(--ink);
                background: var(--bg); border: 1px solid var(--line); border-radius: 6px; }
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 16px; }
@media (max-width: 760px) { .grid2, .grid3 { grid-template-columns: 1fr; } }
.with-btn { display: flex; gap: 6px; }

button, .btn { display: inline-block; padding: 8px 14px; font: inherit; cursor: pointer;
               border: 1px solid var(--line); border-radius: 6px; background: var(--card);
               color: var(--ink); text-decoration: none; }
.btn.primary, button[type=submit].primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.small { padding: 4px 9px; font-size: 13px; }
button.link { border: none; background: none; color: var(--brand); padding: 0; }
.inline { display: inline; }
.actions { display: flex; gap: 10px; margin: 18px 0 40px; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 10px; }
.inline-form input { width: auto; flex: 1 1 240px; }

table { width: 100%; border-collapse: collapse; }
table.list th, table.list td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; }
table.list th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
table.items th { padding: 6px; font-size: 11px; color: var(--muted); text-align: left;
                 text-transform: uppercase; letter-spacing: .4px; }
table.items td { padding: 4px 3px; vertical-align: top; }
table.items input, table.items select { padding: 6px 7px; font-size: 14px; }
.r { text-align: right; } .mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.small { font-size: 12px; } .empty { color: var(--muted); text-align: center; padding: 30px; }

.pill { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 20px; letter-spacing: .4px; }
.pill.sent { background: #d9f5e6; color: var(--ok); }
.pill.pending { background: #e5eaf0; color: var(--muted); }
.pill.failed { background: #fde3e1; color: var(--bad); }
.pill.unknown { background: #fdf0d5; color: var(--warn); }

.totals { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.totals div { display: flex; gap: 22px; min-width: 300px; justify-content: space-between; }
.totals span { color: var(--muted); }
.totals .grand { font-size: 19px; border-top: 1px solid var(--line); padding-top: 8px; margin-top: 4px; }

.hint { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.hint.ok, .ok > b { color: var(--ok); } .hint.bad { color: var(--bad); }
.error { background: #fde3e1; color: var(--bad); padding: 10px 14px; border-radius: 6px; }
.flash { background: #d9f5e6; color: var(--ok); padding: 10px 14px; border-radius: 6px; }
pre { background: var(--bg); padding: 12px; border-radius: 6px; overflow-x: auto; font-size: 12px; }
.k { color: var(--muted); display: inline-block; min-width: 130px; }
.ref-only { margin-top: 4px; }