:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #27354d;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --purple: #a855f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
}

.container { max-width: 960px; margin: 0 auto; padding: 20px 16px 60px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.brand { font-size: 20px; font-weight: 700; letter-spacing: -0.3px; }
.brand span { color: var(--accent); }

.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.nav button.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.nav button:hover:not(.active) { background: var(--panel-2); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 14px; font-size: 17px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.stat .num { font-size: 30px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 2px; }
.stat.green .num { color: var(--green); }
.stat.red .num { color: var(--red); }
.stat.amber .num { color: var(--amber); }
.stat.blue .num { color: var(--accent); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
td.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: capitalize;
}
.badge.active { background: rgba(34,197,94,.15); color: var(--green); }
.badge.paused { background: rgba(245,158,11,.15); color: var(--amber); }
.badge.error, .badge.failed { background: rgba(239,68,68,.15); color: var(--red); }
.badge.disconnected, .badge.sending { background: rgba(148,163,184,.15); color: var(--muted); }
.badge.scheduled { background: rgba(59,130,246,.15); color: var(--accent); }
.badge.sent { background: rgba(34,197,94,.15); color: var(--green); }
.badge.cancelled { background: rgba(148,163,184,.2); color: var(--muted); }
.badge.delivery_unknown { background: rgba(239,68,68,.15); color: var(--red); }
.badge.waiting { background: rgba(245,158,11,.15); color: var(--amber); }

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.danger { background: transparent; border: 1px solid var(--red); color: var(--red); }
.btn.warn { background: transparent; border: 1px solid var(--amber); color: var(--amber); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn:hover { opacity: .9; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

input[type=text], input[type=email], input[type=password], textarea, select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; min-height: 140px; }
label { display: block; margin-bottom: 8px; font-size: 13px; color: var(--muted); }
.field { margin-bottom: 16px; }

.login-wrap { max-width: 360px; margin: 80px auto; }
.login-wrap .brand { text-align: center; margin-bottom: 24px; }

.msg-error {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.4);
  color: var(--red);
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
}
.msg-success {
  background: rgba(34,197,94,.12);
  border: 1px solid rgba(34,197,94,.4);
  color: var(--green);
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
}
.msg-warn {
  background: rgba(245,158,11,.12);
  border: 1px solid rgba(245,158,11,.4);
  color: var(--amber);
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
}

.hint { color: var(--muted); font-size: 13px; margin-top: 4px; }
.mt-2 { margin-top: 20px; }
.mb-2 { margin-bottom: 12px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.pager { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.empty { color: var(--muted); text-align: center; padding: 30px 0; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.filters button {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  padding: 6px 12px; border-radius: 7px; cursor: pointer; font-size: 13px;
}
.filters button.active { background: var(--accent); border-color: var(--accent); color: #fff; }