:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar-inner {
  max-width: 1100px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.brand:hover { text-decoration: none; }
nav { display: flex; align-items: center; gap: 16px; }
.nav-user { color: var(--muted); font-size: 0.9rem; }
.btn-nav {
  background: var(--primary); color: #fff !important; padding: 8px 16px;
  border-radius: 8px; font-weight: 600;
}
.btn-nav:hover { background: var(--primary-dark); text-decoration: none; }
.btn-link { color: var(--danger); }

.page { max-width: 1100px; margin: 0 auto; padding: 28px 20px 60px; }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 0.95rem; }
.flash-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.flash-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.flash-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 20px;
}
.card h2, .card h1 { margin-top: 0; }

.hero { text-align: center; padding: 50px 20px; }
.hero h1 { font-size: 2.2rem; margin-bottom: 10px; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 560px; margin: 0 auto 26px; }

.category-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px; margin: 30px 0;
}
.category-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-align: left;
}
.category-card .icon { font-size: 1.8rem; }
.category-card h3 { margin: 10px 0 6px; font-size: 1.05rem; }
.category-card p { color: var(--muted); font-size: 0.88rem; margin: 0; }

form .field { margin-bottom: 16px; }
form label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
form .hint { color: var(--muted); font-size: 0.82rem; margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=tel],
select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 0.95rem; font-family: inherit; background: #fff; color: var(--text);
}
textarea { resize: vertical; min-height: 120px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.btn {
  display: inline-block; background: var(--primary); color: #fff; border: none;
  padding: 11px 22px; border-radius: 8px; font-weight: 600; cursor: pointer; font-size: 0.95rem;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #f1f5f9; }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

.auth-wrap { max-width: 420px; margin: 40px auto; }

table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

.badge {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700;
}
.badge-low { background: #e0f2fe; color: #075985; }
.badge-medium { background: #fef3c7; color: #92400e; }
.badge-high { background: #ffedd5; color: #9a3412; }
.badge-urgent { background: #fee2e2; color: #991b1b; }

.badge-open { background: #dbeafe; color: #1e40af; }
.badge-progress { background: #fef3c7; color: #92400e; }
.badge-resolved { background: #dcfce7; color: #166534; }
.badge-closed { background: #e5e7eb; color: #374151; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px; margin-bottom: 24px; }
.stat-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat-box .num { font-size: 1.8rem; font-weight: 800; }
.stat-box .label { color: var(--muted); font-size: 0.82rem; margin-top: 2px; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.filters select, .filters input { width: auto; }

.ticket-meta { display: flex; flex-wrap: wrap; gap: 22px; color: var(--muted); font-size: 0.88rem; margin: 10px 0 20px; }
.ticket-meta strong { color: var(--text); }

.thread { display: flex; flex-direction: column; gap: 14px; margin: 20px 0; }
.msg { border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; background: #fff; }
.msg.staff { background: #eff6ff; border-color: #bfdbfe; }
.msg-head { display: flex; justify-content: space-between; font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.msg-head strong { color: var(--text); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

@media (max-width: 600px) {
  .topbar-inner { flex-direction: column; gap: 10px; align-items: flex-start; }
  nav { flex-wrap: wrap; }
}