:root {
  --corp-navy: #1e293b;
  --corp-accent: #0f4c81;
  --corp-bg: #f1f5f9;
  --corp-surface: #ffffff;
  --corp-border: #e2e8f0;
  --corp-text: #1e293b;
  --corp-text-muted: #64748b;
  --corp-link: #0f4c81;
  --corp-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  --status-open: #b91c1c;
  --status-open-bg: #fef2f2;
  --status-progress: #b45309;
  --status-progress-bg: #fffbeb;
  --status-closed: #047857;
  --status-closed-bg: #ecfdf5;
}

html {
  font-size: 14px;
  min-height: 100%;
}

@media (min-width: 768px) {
  html { font-size: 15px; }
}

body {
  margin: 0;
  background: var(--corp-bg);
  color: var(--corp-text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
}

.corp-navbar {
  background: var(--corp-navy);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.6rem 0;
}

.corp-navbar .navbar-brand {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff !important;
}

.corp-navbar .brand-sub {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.corp-navbar .nav-link {
  color: rgba(255, 255, 255, 0.75) !important;
  font-size: 0.9rem;
  padding: 0.45rem 0.85rem !important;
  border-radius: 4px;
}

.corp-navbar .nav-link:hover,
.corp-navbar .nav-link.active {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.08);
}

.main-content { padding: 1.75rem 0 3rem; }

.corp-footer {
  background: var(--corp-surface);
  border-top: 1px solid var(--corp-border);
  padding: 1rem 0;
  font-size: 0.8rem;
  color: var(--corp-text-muted);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
}

.page-header h1 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0;
}

.page-header .page-desc {
  font-size: 0.85rem;
  color: var(--corp-text-muted);
  margin-top: 0.25rem;
}

.panel {
  background: var(--corp-surface);
  border: 1px solid var(--corp-border);
  border-radius: 6px;
  box-shadow: var(--corp-shadow);
}

.panel-header {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--corp-border);
  font-weight: 600;
  font-size: 0.9rem;
  background: #fafbfc;
  border-radius: 6px 6px 0 0;
}

.panel-body { padding: 1.25rem; }
.panel-body-flush { padding: 0; }

.panel-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--corp-border);
  background: #fafbfc;
  border-radius: 0 0 6px 6px;
}

.stat-card {
  background: var(--corp-surface);
  border: 1px solid var(--corp-border);
  border-radius: 6px;
  box-shadow: var(--corp-shadow);
  padding: 1.15rem 1.25rem;
  border-left: 4px solid var(--corp-border);
  height: 100%;
}

.stat-card.stat-open { border-left-color: var(--status-open); }
.stat-card.stat-progress { border-left-color: var(--status-progress); }
.stat-card.stat-closed { border-left-color: var(--status-closed); }

.stat-card .stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--corp-text-muted);
  margin-bottom: 0.35rem;
}

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1;
}

.corp-table { margin: 0; font-size: 0.9rem; }

.corp-table thead th {
  background: #f8fafc;
  border-bottom: 1px solid var(--corp-border);
  color: var(--corp-text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.7rem 1rem;
}

.corp-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--corp-border);
  vertical-align: middle;
}

.corp-table tbody tr:last-child td { border-bottom: none; }
.corp-table tbody tr:hover { background: #f8fafc; }

.corp-table .ticket-id {
  color: var(--corp-text-muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.corp-table a {
  color: var(--corp-link);
  text-decoration: none;
  font-weight: 500;
}

.corp-table a:hover { text-decoration: underline; }

.status-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.status-badge.status-open {
  background: var(--status-open-bg);
  color: var(--status-open);
  border: 1px solid #fecaca;
}

.status-badge.status-progress {
  background: var(--status-progress-bg);
  color: var(--status-progress);
  border: 1px solid #fde68a;
}

.status-badge.status-closed {
  background: var(--status-closed-bg);
  color: var(--status-closed);
  border: 1px solid #a7f3d0;
}

.category-badge {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: #f1f5f9;
  color: var(--corp-text-muted);
  border: 1px solid var(--corp-border);
}

.btn-corp-primary {
  background: var(--corp-accent);
  border: 1px solid var(--corp-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border-radius: 4px;
}

.btn-corp-primary:hover {
  background: #0a3d6b;
  border-color: #0a3d6b;
  color: #fff;
}

.btn-corp-outline {
  background: var(--corp-surface);
  border: 1px solid var(--corp-border);
  color: var(--corp-text);
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 4px;
}

.btn-corp-outline:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: var(--corp-text);
}

.btn-corp-sm { font-size: 0.8rem; padding: 0.3rem 0.65rem; }

.form-panel { max-width: 640px; }

.form-panel .form-label {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.form-panel .form-control,
.form-panel .form-select {
  border-color: var(--corp-border);
  border-radius: 4px;
  font-size: 0.9rem;
}

.form-panel .form-control:focus,
.form-panel .form-select:focus {
  border-color: var(--corp-accent);
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.12);
}

.detail-grid dt {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--corp-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.detail-grid dd {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.back-link {
  font-size: 0.85rem;
  color: var(--corp-text-muted);
  text-decoration: none;
  margin-bottom: 1rem;
  display: inline-block;
}

.back-link:hover { color: var(--corp-link); }

.kb-card {
  background: var(--corp-surface);
  border: 1px solid var(--corp-border);
  border-radius: 6px;
  box-shadow: var(--corp-shadow);
  padding: 1.15rem 1.25rem;
  height: 100%;
  transition: border-color 0.15s;
}

.kb-card:hover { border-color: #cbd5e1; }

.kb-card .kb-title a {
  color: var(--corp-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.kb-card .kb-title a:hover { color: var(--corp-link); }

.kb-card .kb-excerpt {
  font-size: 0.85rem;
  color: var(--corp-text-muted);
  line-height: 1.55;
  margin-top: 0.5rem;
}

.article-meta { font-size: 0.85rem; color: var(--corp-text-muted); }

.article-content {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #334155;
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--corp-text-muted);
  font-size: 0.9rem;
}