:root {
    --bg: #f4f6f9; --card: #fff; --ink: #1d2733; --muted: #6b7785; --line: #e1e6ec;
    --brand: #1f5fa8; --brand-d: #174a85; --ok: #1f8a4c; --danger: #c0392b; --warn: #b9770e;
    --radius: 10px;
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
    margin: 0; background: var(--bg); color: var(--ink);
    font-family: Vazirmatn, Vazir, Tahoma, "Segoe UI", sans-serif; line-height: 1.8;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 1.2rem 0 .8rem; }
h2 { font-size: 1.15rem; margin: 1.6rem 0 .6rem; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; }

/* هدر */
.topbar { background: var(--brand); color: #fff; position: sticky; top: 0; z-index: 10; }
.bar { display: flex; align-items: center; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand { color: #fff; font-weight: 700; font-size: 1.1rem; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a { color: #e6eef8; padding: 6px 12px; border-radius: 8px; font-size: .92rem; }
.nav a:hover, .nav a.active { background: rgba(255,255,255,.18); color: #fff; text-decoration: none; }
.userbox { display: flex; align-items: center; gap: 10px; font-size: .9rem; margin: 0; }
.burger { display: none; background: none; border: 0; color: #fff; font-size: 1.5rem; cursor: pointer; margin-inline-start: auto; }

/* کارت و فرم */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 14px 0; }
.card.narrow { max-width: 560px; }
.card.login { max-width: 400px; margin: 10vh auto 0; }
label { display: block; margin-bottom: 14px; font-size: .92rem; font-weight: 600; }
input, select, textarea {
    display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; font-weight: 400;
    border: 1px solid #c8d0da; border-radius: 8px; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #9ec2ea; border-color: var(--brand); }
input[dir=ltr], input[data-money] { text-align: left; }
.inline-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline-form input { flex: 1; min-width: 180px; margin: 0; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0 14px; align-items: end; }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0 14px; }
.filters .actions { grid-column: 1 / -1; }

/* دکمه */
.btn {
    display: inline-block; padding: 9px 20px; border: 0; border-radius: 8px; background: var(--brand); color: #fff;
    font: inherit; font-weight: 600; cursor: pointer; text-align: center;
}
.btn:hover { background: var(--brand-d); text-decoration: none; }
.btn:disabled { opacity: .6; cursor: wait; }
.btn-sm { padding: 4px 12px; font-size: .85rem; }
.btn-lg { padding: 14px 36px; font-size: 1.1rem; }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--brand); border: 1px solid var(--brand); }
.btn-ghost:hover { background: #eaf2fb; }
.topbar .btn-ghost { color: #fff; border-color: rgba(255,255,255,.6); }
.topbar .btn-ghost:hover { background: rgba(255,255,255,.18); }
.btn-danger { background: var(--danger); } .btn-danger:hover { background: #a02e22; }
.btn-ok { background: var(--ok); } .btn-ok:hover { background: #17703d; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }

/* پیام‌ها */
.alert { padding: 12px 16px; border-radius: 8px; margin: 14px 0; border: 1px solid; }
.alert ul { margin: 0; padding-inline-start: 20px; }
.alert-success { background: #e8f6ee; border-color: #a9dcbd; color: #14532d; }
.alert-error { background: #fdecea; border-color: #f2b8b2; color: #7f1d1d; }
.alert-warning { background: #fff6e0; border-color: #f0d89a; color: #6b4a06; }

/* آمار */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin: 14px 0; }
.stat, .balance-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; }
.stat span, .balance-card span { display: block; color: var(--muted); font-size: .85rem; }
.stat strong { font-size: 1.25rem; }
.balance-card { background: linear-gradient(135deg, #1f5fa8, #2f7fd0); color: #fff; margin: 16px 0; border: 0; }
.balance-card span { color: #d8e8f9; }
.balance-card strong { font-size: 2rem; }
.balance-card.small strong { font-size: 1.4rem; }

/* جدول */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th, .table td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
.table td:nth-child(6), .table td:nth-child(5) { white-space: normal; }
.table th { background: #f0f3f7; font-weight: 700; }
.table tr:last-child td { border-bottom: 0; }
.table input, .table select { margin: 0; padding: 5px 8px; min-width: 120px; }
.table tr.voided td { color: #8a94a0; text-decoration: line-through; }
.table tr.voided td:last-child, .table tr.voided td:nth-child(8) { text-decoration: none; }
.num { font-variant-numeric: tabular-nums; }
.plus { color: var(--ok); } .minus { color: var(--danger); }
.badge { display: inline-block; padding: 1px 10px; border-radius: 99px; font-size: .78rem; background: #e8edf3; }
.badge-charge, .badge-ok { background: #def3e6; color: #14532d; }
.badge-purchase { background: #e1ecfa; color: #174a85; }
.badge-reversal { background: #fff0cf; color: #6b4a06; }
.badge-off { background: #f1d9d6; color: #7f1d1d; }

dl.details { display: grid; grid-template-columns: max-content 1fr; gap: 6px 24px; margin: 0; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; }
.ltr-right { text-align: right; unicode-bidi: plaintext; }
pre { white-space: pre-wrap; margin: 0; }

body.plain { background: var(--bg); }
.center-box { max-width: 520px; margin: 0 auto; padding: 16px; }

@media (max-width: 760px) {
    .burger { display: block; }
    .nav { display: none; flex-basis: 100%; flex-direction: column; }
    .nav.open { display: flex; }
    .userbox { flex-basis: 100%; justify-content: space-between; padding-bottom: 8px; }
    dl.details { grid-template-columns: 1fr; gap: 0; }
    dl.details dd { margin-bottom: 8px; }
    .balance-card strong { font-size: 1.6rem; }
}