:root {
  --bg: hsl(220 15% 10%);
  --surface: hsl(220 15% 14%);
  --card: hsl(220 15% 18%);
  --border: hsl(220 15% 22%);
  --text-primary: hsl(220 15% 90%);
  --text-secondary: hsl(220 10% 60%);
  --accent: hsl(210 80% 55%);
  --accent-hover: hsl(210 80% 48%);
  --success: hsl(140 50% 45%);
  --danger: hsl(0 65% 55%);
  --warning: hsl(40 75% 55%);
  --sidebar-w: 260px;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  display: flex; flex-direction: column;
  gap: 32px;
  z-index: 10;
  transition: transform 0.2s ease;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav-item {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
}
.nav-item:hover { background: var(--card); color: var(--text-primary); }
.nav-item.active { background: var(--accent); color: #fff; }

/* ---- Main Content ---- */
.content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 32px;
  display: flex; flex-direction: column;
  gap: 32px;
}

.section { display: none; }
.section.active { display: block; }

h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

/* ---- Cards ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.15s ease;
}
.card:hover { border-color: var(--accent); }
.card h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.card span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ---- Table ---- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
thead th {
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}
.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.status-Succeeded { background: hsl(140 30% 15%); color: var(--success); }
.status-Failed { background: hsl(0 30% 15%); color: var(--danger); }
.status-Active { background: hsl(40 30% 15%); color: var(--warning); }

/* ---- Form ---- */
form { display: flex; gap: 12px; align-items: center; }
input[type="date"] {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
}
button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease;
}
button:hover { background: var(--accent-hover); }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  min-width: 300px;
}
.modal h3 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }