:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #d97706;
  --danger: #dc2626;
  --success: #16a34a;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Vazirmatn, Tahoma, sans-serif;
  background: linear-gradient(180deg, #ecfdf5 0%, var(--bg) 220px);
  color: var(--text);
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
.container { width: min(1100px, 92vw); margin: 0 auto; }
.site-header {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.header-inner { display:flex; align-items:center; justify-content:space-between; padding:1rem 0; }
.brand { font-weight:700; font-size:1.15rem; color:var(--text); }
.nav { display:flex; gap:1rem; flex-wrap:wrap; align-items:center; }
.nav-user-btn {
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:999px;
  border:1px solid var(--border); background:#fff; color:var(--primary);
}
.nav-user-btn:hover { background:#ecfeff; color:var(--primary-dark); }
.main-content { padding: 1.5rem 0 3rem; }
.site-footer { border-top:1px solid var(--border); padding:1.5rem 0; color:var(--muted); font-size:.9rem; }
.hero { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.5rem; box-shadow:var(--shadow); margin-bottom:1.5rem; }
.hero h1 { margin:0 0 .5rem; font-size:1.6rem; }
.hero p { margin:0; color:var(--muted); }
.grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:1rem; }
.card {
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.1rem; box-shadow:var(--shadow); display:flex; flex-direction:column; gap:.75rem;
}
.card h2, .card h3 { margin:0; font-size:1.05rem; }
.badge { display:inline-block; padding:.2rem .55rem; border-radius:999px; font-size:.75rem; background:#ecfeff; color:#155e75; }
.badge.arch { background:#fff7ed; color:#9a3412; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:.4rem;
  padding:.7rem 1rem; border-radius:10px; border:0; cursor:pointer; font:inherit; font-weight:600;
}
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); color:#fff; }
.btn-secondary { background:#fff; color:var(--text); border:1px solid var(--border); }
.btn-block { width:100%; }
.form-group { margin-bottom:1rem; }
label { display:block; margin-bottom:.35rem; font-weight:600; font-size:.92rem; }
input, select, textarea {
  width:100%; padding:.7rem .8rem; border:1px solid var(--border); border-radius:10px; font:inherit; background:#fff;
}
.alert { padding:.85rem 1rem; border-radius:10px; margin-bottom:1rem; }
.alert-info { background:#ecfeff; color:#155e75; }
.alert-error { background:#fef2f2; color:#991b1b; }
.alert-success { background:#f0fdf4; color:#166534; }
.ticket-types { display:grid; gap:.75rem; }
.ticket-row { display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:.75rem; border:1px solid var(--border); border-radius:10px; }
.summary-box { background:#f8fafc; border:1px solid var(--border); border-radius:10px; padding:1rem; }
.summary-row { display:flex; justify-content:space-between; margin:.35rem 0; }
.summary-row.total { font-weight:700; font-size:1.05rem; border-top:1px dashed var(--border); padding-top:.6rem; margin-top:.6rem; }
.ticket-view { text-align:center; max-width:420px; margin:0 auto; }
.ticket-view img { border:1px solid var(--border); border-radius:12px; background:#fff; padding:.5rem; }
.admin-layout { display:grid; grid-template-columns:220px 1fr; gap:1rem; }
.admin-nav { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1rem; height:fit-content; }
.admin-nav a { display:block; padding:.45rem 0; }
.table { width:100%; border-collapse:collapse; background:var(--card); border-radius:var(--radius); overflow:hidden; }
.table th, .table td { padding:.65rem .75rem; border-bottom:1px solid var(--border); text-align:right; font-size:.9rem; }
.table th { background:#f8fafc; }
@media (max-width: 768px) {
  .admin-layout { grid-template-columns:1fr; }
  .ticket-row { flex-direction:column; align-items:stretch; }
}