:root{
    --bg:#f3f6ff;
    --surface:#ffffff;
    --text:#0f172a;
    --muted:#64748b;
    --line:#e2e8f0;
    --primary:#6d28d9;
    --primary-2:#2563eb;
    --success:#16a34a;
    --warning:#f59e0b;
    --danger:#dc2626;
    --shadow:0 18px 50px rgba(15,23,42,.10);
    --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
    color:var(--text);
    background:
        radial-gradient(circle at top left, rgba(109,40,217,.12), transparent 30%),
        radial-gradient(circle at top right, rgba(37,99,235,.14), transparent 35%),
        linear-gradient(180deg, #eef2ff 0%, #f8fafc 38%, #f8fafc 100%);
}
a{color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px, calc(100% - 32px)); margin:0 auto}
.header{
    position:sticky;top:0;z-index:60;
    backdrop-filter:blur(18px);
    background:linear-gradient(90deg, rgba(15,23,42,.96), rgba(30,41,59,.92));
    border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:14px 0}
.header-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff}
.brand img{width:52px;height:52px;object-fit:contain;border-radius:16px;background:rgba(255,255,255,.06);padding:5px}
.brand strong{display:block;font-size:16px}
.brand span{display:block;color:#cbd5e1;font-size:12px;margin-top:2px}
.admin-info{color:#e2e8f0;font-size:13px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:8px 14px;border-radius:999px}
.admin-nav{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.admin-nav a{color:#dbe4f0;text-decoration:none;font-weight:600;font-size:14px;padding:8px 12px;border-radius:12px}
.admin-nav a:hover,.admin-nav a.active{color:#fff;background:rgba(255,255,255,.08)}
.admin-nav .nav-danger{color:#fecaca}
.admin-main{padding:28px 0 48px}
.page-head{margin-bottom:24px}
.page-head h1{margin:0 0 8px;font-size:clamp(28px,4vw,40px)}
.lead{color:var(--muted);line-height:1.7;margin:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}
.card h2{margin:0 0 16px;font-size:22px}
.card h3{margin:0 0 10px;font-size:16px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:24px}
.stats-4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.stat-title{color:var(--muted);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.stat-number{font-size:28px;font-weight:800;margin-top:8px}
.stat-meta{display:block;margin-top:8px;color:var(--muted);font-size:12px;line-height:1.5}
.stat-ok{border-color:rgba(22,163,74,.25);background:linear-gradient(180deg,#fff,#f0fdf4)}
.stat-bad{border-color:rgba(220,38,38,.25);background:linear-gradient(180deg,#fff,#fef2f2)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.summary{display:grid;gap:12px}
.summary-row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.summary-row:last-child{border-bottom:0}
.notice{background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;padding:14px 16px;border-radius:16px;margin-bottom:20px;line-height:1.6}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}
table{width:100%;border-collapse:collapse;min-width:980px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
th{background:#f8fafc;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.filter-box{margin-bottom:16px}
.filter-box form{display:flex;gap:10px;flex-wrap:wrap}
.filter-box input,.filter-box select,.field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;font:inherit;background:#fff
}
.filter-box button,.btn,.action-link,.action-btn{
    appearance:none;border:0;display:inline-flex;align-items:center;justify-content:center;gap:8px;
    text-decoration:none;border-radius:14px;font-weight:800;padding:12px 18px;cursor:pointer;
    background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;
    box-shadow:0 14px 30px rgba(37,99,235,.22);transition:transform .18s ease
}
.btn:hover,.action-link:hover,.action-btn:hover,.filter-box button:hover{transform:translateY(-1px)}
.btn-light,.btn-outline{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:none}
.row-actions{display:flex;flex-wrap:wrap;gap:8px}
.empty{text-align:center;color:var(--muted);padding:28px}
.badge{display:inline-flex;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800}
.badge.unpaid{background:#fef3c7;color:#92400e}
.badge.paid{background:#dbeafe;color:#1d4ed8}
.badge.processing{background:#ede9fe;color:#6d28d9}
.badge.completed{background:#dcfce7;color:#166534}
.badge.cancelled{background:#fee2e2;color:#991b1b}
.log-preview{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:14px;overflow:auto;max-height:220px;font-size:12px;line-height:1.6;white-space:pre-wrap}
.toast{position:fixed;right:18px;bottom:18px;z-index:1000;background:#0f172a;color:#fff;padding:12px 14px;border-radius:14px;opacity:0;transform:translateY(14px);transition:all .2s ease;pointer-events:none}
.toast.show{opacity:1;transform:translateY(0)}
.customer-body .header{background:linear-gradient(90deg,rgba(15,23,42,.96),rgba(30,41,59,.92))}
.customer-nav a{color:#dbe4f0;text-decoration:none;font-weight:600;font-size:14px;margin-right:14px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:700;margin-bottom:8px;font-size:14px}
.field-error{color:var(--danger);font-size:12px;margin-top:6px;display:block}
@media (max-width:900px){.grid-2,.stats{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:flex-start}}