:root {
  --ink: #20242a;
  --muted: #68717d;
  --line: #d9dee6;
  --paper: #f6f7f9;
  --panel: #ffffff;
  --accent: #b42318;
  --accent-soft: #fff1ef;
  --nav: #27313d;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: 14px;
}

.app-shell {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: var(--nav);
  color: #fff;
  padding: 18px 14px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .2px;
  margin: 0 0 18px;
}

.nav-link {
  color: rgba(255,255,255,.78);
  border-radius: 6px;
  padding: 8px 10px;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255,255,255,.1);
}

.content {
  padding: 22px 28px 42px;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.page-title {
  font-size: 25px;
  font-weight: 700;
  margin: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.panel-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

.filters {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr)) auto;
  gap: 8px;
  align-items: end;
}

.table {
  background: #fff;
  border: 1px solid var(--line);
}

.table th {
  background: #eef1f5;
  color: #343b44;
  font-weight: 650;
}

.badge-status {
  background: #e8eef5;
  color: #2f3a46;
}

.badge-priority-high,
.badge-priority-urgent {
  background: var(--accent-soft);
  color: var(--accent);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.meta-item {
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}

.meta-label {
  color: var(--muted);
  font-size: 12px;
}

.muted {
  color: var(--muted);
}

.timeline-item {
  border-left: 3px solid var(--line);
  padding: 0 0 12px 12px;
  margin-left: 4px;
}

.auth-card {
  max-width: 420px;
  margin: 10vh auto;
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .filters,
  .meta-grid {
    grid-template-columns: 1fr;
  }
  .content {
    padding: 16px;
  }
}