:root {
  --bg: #f4f5f7;
  --card-bg: #ffffff;
  --border: #dde1e6;
  --text: #1f2430;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
}

.topbar-title { font-weight: 600; }

.topbar nav { display: flex; gap: 16px; flex: 1; }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 14px;
}

.topbar nav a.active, .topbar nav a:hover {
  color: var(--primary);
  background: #eef2ff;
}

.logout-form button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--muted);
}

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

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

h2 { font-size: 15px; margin: 24px 0 8px; color: var(--muted); }

.log-tail {
  background: #111827;
  color: #d1d5db;
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 12px;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.hint { color: var(--muted); font-size: 14px; margin-top: -8px; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

th { background: #fafafa; color: var(--muted); font-weight: 600; }

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

td.empty { text-align: center; color: var(--muted); padding: 32px; }

.result-count { color: var(--muted); font-size: 14px; margin: -8px 0 12px; }

.filters {
  display: flex;
  gap: 16px;
  align-items: end;
  flex-wrap: wrap;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.filters label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.filters input, .filters select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  min-width: 160px;
}

.filters button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 9px 16px;
  cursor: pointer;
  font-size: 14px;
}

.filters button:hover { background: var(--primary-dark); }

.clear-link { color: var(--muted); font-size: 13px; align-self: center; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-success { background: #dcfce7; color: var(--success); }
.badge-error { background: #fee2e2; color: var(--danger); }
.badge-unknown { background: #fef3c7; color: #92400e; }

.login-body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-card h1 { font-size: 18px; margin: 0 0 8px; text-align: center; }

.login-card label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }

.login-card input {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

.login-card button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px;
  font-size: 14px;
  cursor: pointer;
  margin-top: 8px;
}

.login-card button:hover { background: var(--primary-dark); }

.login-card .error { color: var(--danger); font-size: 13px; margin: 0; }

.tracker-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

.tracker-tab {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
}

.tracker-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.tracker-panel { display: none; }

.tracker-panel.active { display: block; }

.tracker-panel iframe {
  width: 100%;
  height: 75vh;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.tracker-blocked {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 48px;
  text-align: center;
  color: var(--muted);
}

.tracker-blocked a {
  display: inline-block;
  margin-top: 12px;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}