:root {
  --bg: #0f172a;
  --panel: #ffffff;
  --panel-bg: #f8fafc;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
}

* { box-sizing: border-box; }

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

.topbar {
  background: var(--bg);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  flex-wrap: wrap;
}

.topbar-brand { font-weight: 600; margin-right: auto; }

.topbar-nav a {
  color: #cbd5e1;
  text-decoration: none;
  margin-right: 16px;
  font-size: 14px;
}

.topbar-nav a:hover { color: #fff; }

.topbar-user { font-size: 13px; color: #cbd5e1; }
.topbar-user a { color: #93c5fd; margin-left: 10px; text-decoration: none; }

.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}
.flash-success { background: #dcfce7; color: #166534; }
.flash-error   { background: #fee2e2; color: #991b1b; }

h1 { font-size: 22px; margin-bottom: 4px; }
h2 { font-size: 17px; margin-top: 32px; }
.subtitle { color: var(--text-muted); margin-bottom: 24px; font-size: 14px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 20px;
}

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) { .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.stat-tile { text-align: left; }
.stat-tile .value { font-size: 28px; font-weight: 700; }
.stat-tile .label { color: var(--text-muted); font-size: 13px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.badge-ok { background: #dcfce7; color: #166534; }
.badge-off { background: #f1f5f9; color: #64748b; }
.badge-admin { background: #dbeafe; color: #1e40af; }
.badge-viewer { background: #f1f5f9; color: #475569; }

form.inline { display: inline; }

.btn {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn-danger { background: var(--danger); }
.btn-secondary { background: #64748b; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

input, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 12px;
}
label { font-size: 13px; color: var(--text-muted); display: block; margin-bottom: 4px; }

.login-wrap {
  max-width: 360px;
  margin: 80px auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}

.dkim-box {
  background: #0f172a;
  color: #a5f3fc;
  padding: 12px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-all;
  margin-top: 8px;
}

.progress {
  background: var(--border);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}
.progress > div { height: 100%; background: var(--accent); }
.progress > div.warn { background: var(--warn); }
.progress > div.danger { background: var(--danger); }

.muted { color: var(--text-muted); font-size: 13px; }