:root {
  --blue: #1d4e89;
  --blue-dark: #163b69;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e2e8f0;
  --green: #157f3d;
  --red: #b91c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

main { max-width: 1280px; margin: 0 auto; padding: 20px; }

h1 { font-size: 1.5rem; margin: 8px 0 18px; }
h2 { font-size: 1.05rem; margin: 0 0 12px; color: var(--blue-dark); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- nav ---- */
.topnav {
  display: flex; align-items: center; gap: 24px;
  background: var(--blue); color: #fff; padding: 0 20px;
  flex-wrap: wrap;
}
.topnav .brand { font-weight: 600; padding: 9px 0; line-height: 1.25; }
.topnav .brand .brand-sub { display: block; font-weight: 400; font-size: 0.75rem; color: #cdd9ea; }
.topnav .links { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topnav .links a {
  color: #cdd9ea; padding: 14px 12px; text-decoration: none;
}
.topnav .links a:hover { color: #fff; }
.topnav .links a.active { color: #fff; box-shadow: inset 0 -3px 0 #fff; }
.topnav .userbox { color: #cdd9ea; display: flex; gap: 12px; align-items: center; }
.topnav .userbox a { color: #fff; }

/* ---- cards & layout ---- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px 18px; margin-bottom: 18px;
}
.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

/* ---- dashboard stats ---- */
.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px; margin-bottom: 20px;
}
.stat {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px; text-align: center;
}
.stat .num { font-size: 1.7rem; font-weight: 700; color: var(--blue-dark); }
.stat .label { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

/* ---- tables ---- */
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); white-space: nowrap; }
table.data tbody tr:hover { background: #f0f4fa; }
tr.canceled td { color: #9ca3af; }
tr.canceled td a { color: #9ca3af; }
.r { text-align: right; }
.nowrap { white-space: nowrap; }
.table-scroll {
  overflow: auto; max-height: calc(100vh - 215px);
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
}
.table-scroll table.data { min-width: 900px; border-collapse: separate; border-spacing: 0; }
.table-scroll thead th {
  position: sticky; top: 0; z-index: 2;
  background: var(--card); border-bottom: 2px solid var(--border);
}

/* click-to-sort headers */
th.sort-header { cursor: pointer; user-select: none; }
th.sort-header:hover { color: var(--blue); }
th.sorted-asc::after { content: ' ▲'; color: var(--blue); }
th.sorted-desc::after { content: ' ▼'; color: var(--blue); }

/* ---- badges & misc ---- */
.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 600;
  padding: 2px 8px; border-radius: 10px; background: #e5e7eb; color: #374151;
  vertical-align: middle;
}
.badge.green { background: #d1f0dd; color: var(--green); }
.badge.red { background: #fde2e2; color: var(--red); }
.count-badge {
  font-size: 0.8rem; background: var(--blue); color: #fff;
  border-radius: 10px; padding: 2px 9px; vertical-align: middle;
}
.muted { color: var(--muted); font-size: 0.85rem; }
.note-dot { color: #d97706; margin-left: 4px; }
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; }
.alert.success { background: #d1f0dd; color: var(--green); }
.alert.error { background: #fde2e2; color: var(--red); }

/* ---- forms ---- */
input[type=text], input[type=password], input[type=number], select, textarea {
  font: inherit; padding: 7px 9px; border: 1px solid #cbd5e1; border-radius: 6px;
  background: #fff; width: 100%;
}
textarea { resize: vertical; }
label { display: block; margin-bottom: 10px; font-size: 0.88rem; color: #374151; }
label input, label select, label textarea { margin-top: 4px; }

.btn {
  display: inline-block; font: inherit; font-size: 0.88rem; cursor: pointer;
  padding: 7px 14px; border-radius: 6px; border: 1px solid #cbd5e1;
  background: #fff; color: var(--text); text-decoration: none;
}
.btn:hover { background: #f1f5f9; text-decoration: none; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-dark); }
.btn.danger { color: var(--red); border-color: #fca5a5; }
.btn.danger:hover { background: #fef2f2; }
.btn.excel { color: var(--green); border-color: #86d3a5; }
.btn.small { padding: 4px 10px; font-size: 0.8rem; }
.btn.wide { width: 100%; }

.filterbar {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px; margin-bottom: 16px;
}
.filterbar input[type=text] { width: 240px; }
.filterbar select { width: auto; }

.coupon-form { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.coupon-form label { margin-bottom: 0; flex: 0 0 auto; }
.coupon-form label.grow { flex: 1 1 200px; }
.coupon-form input[type=number] { width: 100px; }

.inline-note { display: flex; gap: 6px; align-items: center; }
.inline-note input[type=text] { min-width: 220px; }
input.narrow { width: 90px; }

.detail-grid { display: grid; grid-template-columns: 150px 1fr; gap: 6px 12px; margin: 0; }
.detail-grid dt { color: var(--muted); font-size: 0.85rem; padding-top: 2px; }
.detail-grid dd { margin: 0; }

.toggle { float: right; }

details summary { cursor: pointer; color: var(--blue-dark); }
details.alldata-toggle summary {
  background: #eef2f8; border: 1px solid var(--border); border-radius: 6px;
  padding: 10px 14px; font-size: 1rem;
}
details.alldata-toggle summary:hover { background: #e0e8f4; }
.cpnote { max-width: 220px; font-size: 0.85rem; }
.detail-grid.alldata { margin-top: 14px; grid-template-columns: 220px 1fr; }

/* ---- login ---- */
body.login-page {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
}
.login-card {
  background: #fff; border-radius: 12px; padding: 36px;
  width: 360px; max-width: 92vw; box-shadow: 0 18px 50px rgba(0,0,0,0.3);
}
.login-card h1 { margin: 0 0 2px; font-size: 1.25rem; color: var(--blue-dark); }
.login-card .subtitle { margin: 0 0 22px; color: var(--muted); }