:root {
  --bg: #ffffff;
  --surface: #f8fafc; /* light panel */
  --surface-2: #f1f5f9; /* slightly stronger */
  --text: #0f172a; /* slate-900 */
  --muted: #64748b; /* slate-500 */
  --border: #e2e8f0; /* slate-200 */
  --primary: #2563eb; /* blue-600 */
  --primary-hover: #1d4ed8; /* blue-700 */
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(2, 6, 23, 0.06), 0 8px 24px rgba(2, 6, 23, 0.06);
  --shadow-sm: 0 1px 2px rgba(2, 6, 23, 0.06);
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.5;
}

/* Layout */
.container {
  width: min(1100px, calc(100% - 48px));
  margin: 0 auto;
}
.page {
  padding: 28px 0 56px;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.nav {
  display: flex;
  gap: 14px;
  align-items: center;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 550;
}
.nav a:hover {
  color: var(--text);
}

/* Typography */
.h1 {
  font-size: 36px;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0;
}
.h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0;
}
.p {
  margin: 0;
  color: var(--muted);
}
.kicker {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Card */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card-pad {
  padding: 18px;
}
.card:hover {
  box-shadow: var(--shadow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-hover);
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  background: var(--surface);
}

/* Inputs */
.input,
select,
textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  color: var(--text);
}
.input:focus,
select:focus,
textarea:focus {
  border-color: rgba(37, 99, 235, 0.6);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

/* Table */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.table th {
  text-align: left;
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--surface);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}
.table tr:last-child td {
  border-bottom: none;
}

/* Badges (run status pills) */
.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.badge.success {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.25);
  color: var(--success);
}
.badge.danger {
  background: rgba(220, 38, 38, 0.1);
  border-color: rgba(220, 38, 38, 0.25);
  color: var(--danger);
}
.badge.warning {
  background: rgba(217, 119, 6, 0.1);
  border-color: rgba(217, 119, 6, 0.25);
  color: var(--warning);
}
.badge.muted {
  color: var(--muted);
}

.spinner {
  width: 14px;
  height: 14px;
  border-radius: 999px;

  /* Visible on light backgrounds */
  border: 2px solid rgba(0, 0, 0, 0.15);
  border-top-color: rgba(0, 0, 0, 0.6);

  animation: spin 0.85s linear infinite;
}

/* If your app uses dark mode via prefers-color-scheme */
@media (prefers-color-scheme: dark) {
  .spinner {
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: rgba(255, 255, 255, 0.9);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}