:root {
  --bg: #0f172a;
  --card: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 10px;
}

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

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

/* Nav */
.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-brand { font-weight: 700; font-size: 1.15rem; color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
}
.nav-links a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.nav-links a:hover { color: var(--primary); }
.nav-user { margin-left: auto; display: flex; align-items: center; gap: 0.75rem; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--card);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-user { margin-left: 0; flex-direction: column; align-items: flex-start; }
}

/* Cards & forms */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card h2, .card h3 { margin-bottom: 0.75rem; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; color: var(--muted); font-size: 0.9rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0f172a;
  color: var(--text);
  font-size: 1rem;
}
.form-group textarea { min-height: 90px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border: none;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.btn:hover { background: var(--primary-hover); }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.85rem; }
.btn-success { background: var(--success); }
.btn-success:hover { background: #16a34a; }
.btn-warning { background: var(--warning); color: #000; }
.btn-danger { background: var(--danger); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}
.alert-success { background: rgba(34,197,94,0.15); border: 1px solid var(--success); color: #86efac; }
.alert-error   { background: rgba(239,68,68,0.15); border: 1px solid var(--danger); color: #fca5a5; }

/* Tables */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th, td {
  padding: 0.65rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: rgba(255,255,255,0.03); }

/* Status badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-assigned   { background: #1e3a5f; color: #93c5fd; }
.badge-travelling { background: #3b2f1a; color: #fcd34d; }
.badge-working    { background: #1a3b2f; color: #6ee7b7; }
.badge-escalated  { background: #3b1a1a; color: #fca5a5; }
.badge-pending_approval { background: #3b2f1a; color: #fbbf24; }
.badge-closed     { background: #1e293b; color: #94a3b8; }
.badge-low        { background: #1e293b; color: #94a3b8; }
.badge-normal     { background: #1e3a5f; color: #93c5fd; }
.badge-high       { background: #3b2f1a; color: #fcd34d; }
.badge-critical   { background: #3b1a1a; color: #fca5a5; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}
.stat-card .num { font-size: 1.75rem; font-weight: 700; color: var(--primary); }
.stat-card .label { font-size: 0.85rem; color: var(--muted); }

/* Ticket detail */
.ticket-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.meta-item label { display: block; font-size: 0.75rem; color: var(--muted); text-transform: uppercase; }
.meta-item span { font-weight: 500; }

.messages { margin-top: 1.5rem; }
.message {
  background: #0f172a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}
.message .who { font-size: 0.8rem; color: var(--muted); margin-bottom: 0.25rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

.login-box {
  max-width: 400px;
  margin: 4rem auto;
}

.site-footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}