:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --text: #e4e6ed;
  --text-muted: #8b8fa3;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --sidebar-width: 240px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.app {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1rem 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 0.5rem 1rem 1.5rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.sidebar-brand a { color: var(--text); }

.sidebar-nav {
  list-style: none;
}

.sidebar-nav a {
  display: block;
  padding: 0.625rem 1rem;
  color: var(--text-muted);
  transition: all 0.15s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--text);
  background: rgba(99, 102, 241, 0.1);
  border-right: 3px solid var(--primary);
}

/* Main content */
.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
  max-width: 1200px;
}

/* Page header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s;
}

.btn:hover { background: var(--border); }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-open { background: rgba(99, 102, 241, 0.2); color: var(--primary); }
.badge-pending { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-closed { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-merged { background: rgba(139, 143, 163, 0.2); color: var(--text-muted); }

.badge-low { color: var(--text-muted); }
.badge-normal { color: var(--text); }
.badge-high { color: var(--warning); }
.badge-urgent { color: var(--danger); }

/* Ticket list */
.ticket-list { display: flex; flex-direction: column; gap: 0.25rem; }

.ticket-row {
  display: grid;
  grid-template-columns: 60px 1fr auto auto auto;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-radius: 6px;
  color: var(--text);
  transition: background 0.15s;
}

.ticket-row:hover { background: var(--border); }

.ticket-number { color: var(--text-muted); font-size: 0.875rem; }
.ticket-subject { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ticket-date { color: var(--text-muted); font-size: 0.875rem; }

/* Form elements */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* Pagination */
.pagination {
  display: flex;
  gap: 0.25rem;
  margin-top: 1rem;
  justify-content: center;
}

.page-btn {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Utility */
.loading { color: var(--text-muted); padding: 2rem; text-align: center; }
.empty { color: var(--text-muted); padding: 2rem; text-align: center; }
.error { color: var(--danger); }

.section { margin-top: 2rem; }
.section h2 { margin-bottom: 1rem; font-size: 1.125rem; }