:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e3e6eb;
  --text: #1f2630;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --green: #16a34a;
  --yellow: #d97706;
  --red: #dc2626;
  --grey: #6b7280;
  --radius: 8px;
}

* { box-sizing: border-box; }

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: #eef0f3;
  padding: 1px 5px;
  border-radius: 4px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.topbar .brand {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
}
.topbar nav { display: flex; align-items: center; gap: 12px; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); text-decoration: none; }

.container {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.card.narrow { max-width: 480px; margin: 40px auto; }
.card-header { margin-bottom: 18px; }
.card h1 { margin: 0 0 4px; font-size: 1.5rem; }

.empty { text-align: center; padding: 36px 0; }
.empty p { color: var(--muted); margin-bottom: 14px; }

.muted { color: var(--muted); }
.small { font-size: 0.86rem; }

form label {
  display: block;
  margin: 14px 0;
  font-weight: 500;
}
form label small { font-weight: 400; display: block; margin-top: 4px; }
form input[type=text],
form input[type=email],
form input[type=password],
form select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fff;
}
form input:focus,
form select:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-size: 0.92rem;
  font-family: inherit;
  text-decoration: none;
}
.btn:hover { background: #f1f3f6; text-decoration: none; }
.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn.danger {
  background: #fff;
  color: var(--danger);
  border-color: #fac3c3;
}
.btn.danger:hover { background: #fdecec; }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: 0.84rem; }
.btn[disabled],
.btn.disabled-link {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}
.btn.block { width: 100%; margin-top: 14px; }

form.inline { display: inline; }

.actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 14px;
}
.alert.error { background: #fdecec; color: var(--danger); border: 1px solid #f6c1c1; }
.alert.info  { background: #e0f2fe; color: #075985; border: 1px solid #bae6fd; margin-bottom: 16px; }

table.instances {
  width: 100%;
  border-collapse: collapse;
  margin-top: 4px;
}
table.instances th,
table.instances td {
  text-align: left;
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.instances th {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.instances td.actions { white-space: nowrap; }
table.instances tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: capitalize;
}
.badge.green  { background: #dcfce7; color: var(--green); }
.badge.yellow { background: #fef3c7; color: var(--yellow); }
.badge.red    { background: #fee2e2; color: var(--red); }
.badge.grey   { background: #e5e7eb; color: var(--grey); }
.badge.small  { font-size: 0.7rem; padding: 1px 6px; }

pre.logs {
  background: #0f172a;
  color: #e2e8f0;
  padding: 16px;
  border-radius: 6px;
  font-size: 0.85rem;
  overflow-x: auto;
  max-height: 60vh;
  white-space: pre-wrap;
  word-break: break-word;
}