:root{
  --teal:#0d9488; --teal-dark:#0f766e; --coral:#fb7185; --coral-dark:#e11d48;
  --ink:#1e293b; --muted:#64748b; --bg:#f1f5f9; --card:#ffffff; --border:#e2e8f0;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink);display:flex;min-height:100vh}
a{color:var(--teal-dark);text-decoration:none}
.sidebar{width:220px;background:var(--teal-dark);color:#fff;padding:20px 0;flex-shrink:0}
.sidebar .brand{padding:0 20px 20px;font-weight:700;font-size:16px;border-bottom:1px solid rgba(255,255,255,.15)}
.sidebar a{display:block;color:#e0f2f1;padding:10px 20px;font-size:14px}
.sidebar a:hover, .sidebar a.active{background:rgba(255,255,255,.12);color:#fff}
.main{flex:1;padding:24px 32px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.topbar .role{font-size:13px;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:24px;margin-bottom:20px}
h1{font-size:22px;margin-top:0}
h2{font-size:17px}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}
input,select,textarea{width:100%;padding:9px;border:1px solid var(--border);border-radius:6px;font-size:14px}
button,.btn{background:var(--teal);color:#fff;border:none;padding:10px 18px;border-radius:6px;font-weight:600;cursor:pointer;font-size:14px;display:inline-block}
.btn.secondary{background:transparent;color:var(--teal-dark);border:1px solid var(--teal)}
.btn.coral{background:var(--coral)}
.btn.small{padding:6px 12px;font-size:13px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;text-align:center}
.stat .num{font-size:26px;font-weight:700;color:var(--teal-dark)}
.stat .label{font-size:12px;color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left}
.badge{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.badge.pending_payment{background:#fef3c7;color:#92400e}
.badge.paid{background:#dbeafe;color:#1e40af}
.badge.processing{background:#e0e7ff;color:#4338ca}
.badge.ready{background:#d1fae5;color:#065f46}
.badge.completed{background:#dcfce7;color:#166534}
.badge.cancelled{background:#fee2e2;color:#991b1b}
.badge.active{background:#d1fae5;color:#065f46}
.badge.inactive{background:#f1f5f9;color:#64748b}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px}
.alert.error{background:#fee2e2;color:#991b1b}
.alert.success{background:#d1fae5;color:#065f46}