.modal-backdrop{position:fixed;inset:0;background:rgba(12,20,35,.55);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;z-index:200;padding:16px;}
.modal-backdrop.open{display:flex}
.modal{background:var(--surface);border-radius:20px;width:100%;max-width:540px;max-height:92vh;display:flex;flex-direction:column;box-shadow:0 24px 70px rgba(0,0,0,.35);animation:pop .22s ease;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border);gap:10px}
.modal-head h3{margin:0;font-size:15.5px}
.modal-body{padding:18px;overflow-y:auto; -webkit-overflow-scrolling:touch}
.modal-foot{display:flex;gap:10px;justify-content:flex-start;padding:14px 18px;border-top:1px solid var(--border); flex-wrap:wrap}

.datepicker{position:fixed;z-index:300;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.28);padding:12px;display:none;width:300px; max-width:calc(100vw - 16px);}
.datepicker.open{display:block}
.dp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px; gap:4px}
.dp-group{display:flex;gap:4px}
.dp-title{font-weight:700;font-size:13.5px; padding:6px 10px; border-radius:8px; transition:.15s; user-select:none;}
.dp-title.clickable{cursor:pointer;}
.dp-title.clickable:hover{background:var(--surface-2); color:var(--primary)}
.dp-week{display:grid;grid-template-columns:repeat(7,1fr);text-align:center;font-size:11px;color:var(--muted);margin-bottom:4px}
.dp-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}
.dp-cell{border:0;background:transparent;height:36px;border-radius:10px;cursor:pointer;font-size:13px;display:grid;place-items:center;transition:.14s;font-weight:500;}
.dp-cell:hover:not(.empty){background:var(--surface-2)}
.dp-cell.empty{cursor:default}
.dp-cell.today{border:1px solid var(--primary);color:var(--primary);font-weight:700}
.dp-cell.sel{background:var(--primary);color:#fff;font-weight:700}
.dp-foot{display:flex;justify-content:center;margin-top:10px}
.dp-head .icon-btn{width:32px; height:32px; border-radius:8px; background:var(--surface-2); color:var(--text); font-size:18px; font-weight:700; line-height:1; transition:.15s;}
.dp-head .icon-btn:hover{ background:var(--primary); color:#fff; }
.dp-head .icon-btn:active{ transform:scale(.92); }
.dp-months-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:6px; margin-top:6px;}
.dp-month{padding:12px 6px; border-radius:10px; border:1px solid transparent; background:transparent; cursor:pointer; font-size:13px; font-weight:600; text-align:center; transition:.15s; color:var(--text);}
.dp-month:hover{background:var(--surface-2)}
.dp-month.sel{background:var(--primary); color:#fff; font-weight:700}
.dp-month.today{border-color:var(--primary); color:var(--primary)}

#toasts{position:fixed;bottom:20px;inset-inline-start:20px;z-index:2000;display:flex;flex-direction:column;gap:8px; pointer-events:none}
.toast{background:var(--surface);border:1px solid var(--border);border-inline-start:4px solid var(--primary);padding:11px 16px;border-radius:12px;box-shadow:var(--shadow);font-size:13px;font-weight:500;animation:slideIn .25s ease;max-width:330px; pointer-events:auto;}
.toast.error{border-inline-start-color:var(--red)}
.toast.success{border-inline-start-color:var(--green)}
@keyframes slideIn{from{transform:translateX(-24px);opacity:0}to{transform:translateX(0);opacity:1}}

.maintenance-overlay{position:fixed;inset:0;background:linear-gradient(135deg,#2f6fed 0%,#7c5cf7 100%);z-index:1500;display:none;align-items:center;justify-content:center;padding:20px;text-align:center;color:#fff;}
.maintenance-overlay.open{display:flex}
.maintenance-overlay .mo-box{max-width:520px}
.maintenance-overlay .mo-icon{font-size:80px;margin-bottom:20px;line-height:1}
.maintenance-overlay h1{font-size:24px;margin:0 0 14px;font-weight:700}
.maintenance-overlay p{font-size:15px;line-height:2;opacity:.95;margin:0 0 22px}
.maintenance-overlay .mo-btn{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.4);color:#fff;padding:10px 22px;border-radius:12px;font-weight:600;cursor:pointer;font-family:inherit;font-size:14px;}
.maintenance-overlay .mo-btn:hover{background:rgba(255,255,255,.25)}

/* تاریخچه تغییر مبلغ بستانکاری / بدهکاری */
.adjust-current-box{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);background:var(--surface-2);border-radius:12px;margin-bottom:14px;font-size:13px;}
.adjust-current-box strong{font-size:16px;}
.dt-history-row td{padding:0 !important;background:var(--surface-2) !important;border-top:0;}
.dt-history-wrap{padding:12px 14px 14px;}
.dt-history-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;font-size:12px;font-weight:700;}
.dt-history-list{display:flex;flex-direction:column;gap:7px;}
.dt-history-item{display:grid;grid-template-columns:92px 1fr auto;gap:10px;align-items:center;padding:9px 10px;border:1px solid var(--border);background:var(--surface);border-radius:10px;font-size:12px;}
.dt-history-item .change.increase{color:var(--green);font-weight:800;}
.dt-history-item .change.decrease{color:var(--red);font-weight:800;}
.dt-history-meta{color:var(--muted);line-height:1.8;}
@media(max-width:620px){.dt-history-item{grid-template-columns:1fr auto;} .dt-history-item .dt-history-meta{grid-column:1/-1;order:3;}}


.security-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;}
.security-summary-card{padding:11px 12px;border:1px solid var(--border);background:var(--surface-2);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;}
.security-summary-card span{color:var(--muted);}
.security-summary-card b{font-size:15px;}
.security-ip{font-variant-numeric:tabular-nums;white-space:nowrap;}
@media(max-width:760px){.security-summary{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:520px){.security-summary{grid-template-columns:1fr;}.security-summary-card{padding:10px 11px;}.security-summary + .table-wrap{overflow-x:auto;}}