* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

body.center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

h1 { margin: 0; font-size: 20px; }
h2 { margin: 0; font-size: 16px; }
h3 { margin: 0 0 16px; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
  background: #1e293b;
  border-bottom: 1px solid #334155;
}

.nav { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

button {
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
}
button:hover { background: #1d4ed8; }
button.ghost { background: transparent; border: 1px solid #475569; color: #cbd5e1; }
button.ghost:hover { background: #334155; }
button.danger { background: #dc2626; }
button.danger:hover { background: #b91c1c; }

main { padding: 24px; max-width: 1200px; margin: 0 auto; }

.panel { background: #1e293b; border: 1px solid #334155; border-radius: 12px; padding: 20px; }

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.hidden { display: none !important; }
.muted { color: #94a3b8; font-size: 13px; }
.error { color: #f87171; font-size: 13px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #334155; vertical-align: top; }
th { color: #94a3b8; font-weight: 600; white-space: nowrap; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  white-space: nowrap;
}
.badge.pending, .badge.sending { background: #1e3a8a; color: #bfdbfe; }
.badge.sent     { background: #14532d; color: #bbf7d0; }
.badge.delivered{ background: #065f46; color: #a7f3d0; }
.badge.failed   { background: #7f1d1d; color: #fecaca; }
.badge.expired  { background: #713f12; color: #fde68a; }
.badge.revoked  { background: #4c1d95; color: #ddd6fe; }
.badge.ok       { background: #065f46; color: #bbf7d0; }
.badge.off      { background: #374151; color: #cbd5e1; }

input, select, textarea {
  width: 100%;
  background: #0f172a;
  border: 1px solid #475569;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
}
label { display: block; margin: 12px 0 4px; font-size: 13px; color: #cbd5e1; }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
}
textarea[readonly] { resize: none; height: 120px; }

.code { font-family: ui-monospace, monospace; font-size: 12px; word-break: break-all; }

@media (max-width: 720px) {
  main { padding: 12px; }
  th, td { font-size: 12px; padding: 6px 6px; }
}