:root{
  --bg: #10161f;
  --surface: #1a2331;
  --surface-2: #212c3d;
  --border: #2b3849;
  --ink: #eef2f7;
  --ink-dim: #8d9bb0;
  --teal: #2fd6a7;
  --teal-dim: #1b4d43;
  --amber: #f0a63a;
  --amber-dim: #4a3520;
  --red: #ef6a6a;
  --red-dim: #4a2323;
  --radius: 14px;
  --radius-sm: 9px;
  font-size: 16px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background: var(--bg);
  color: var(--ink);
  font-family: 'Vazirmatn', Tahoma, sans-serif;
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

#app{
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  padding-bottom: 84px;
}

/* ---------- Topbar ---------- */
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 18px 18px 10px;
  gap: 10px;
}
.topbar-title{
  display:flex;
  align-items:center;
  gap: 12px;
}
.logo-mark{
  min-width: 42px;max-width:110px;height:42px;
  border-radius: 11px;
  background: linear-gradient(155deg, var(--teal), #1a8f75);
  color:#08211a;
  display:flex;align-items:center;justify-content:center;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.5px;
  flex-shrink:0;
  padding:0 9px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.topbar h1{
  font-size: 17px;
  margin: 0 0 2px;
  font-weight: 700;
}
.sheet-select-wrap select{
  background: transparent;
  border: none;
  color: var(--ink-dim);
  font-family: inherit;
  font-size: 13px;
  padding: 0;
}
.icon-btn{
  width:38px;height:38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--teal);
  font-size: 20px;
  line-height:1;
  cursor:pointer;
}

/* ---------- Stats strip ---------- */
.stats-strip{
  display:grid;
  grid-template-columns: repeat(2,1fr);
  gap: 8px;
  padding: 4px 18px 16px;
}
.stat{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 6px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 4px;
}
.stat-value{
  font-weight: 800;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.stat-label{
  font-size: 10.5px;
  color: var(--ink-dim);
}
.stat-paid .stat-value{ color: var(--teal); }
.stat-unpaid .stat-value{ color: var(--amber); }
.stat-balance{grid-column:span 2}
.stat-balance .stat-value{color:var(--teal)}

/* ---------- Views ---------- */
.view{ display:none; padding: 0 18px 18px; flex: 1; }
.view.active{ display:block; }

/* ---------- List toolbar ---------- */
.client-list-controls{margin-bottom:12px}
.list-toolbar{
  display:flex;
  gap: 8px;
  margin-bottom: 8px;
}
#searchBox{
  flex:1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
}
#searchBox::placeholder{ color: var(--ink-dim); }
.ghost-btn{
  background: transparent;
  border: 1px solid var(--teal-dim);
  color: var(--teal);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
.payment-filters{
  display:grid;
  grid-template-columns:.65fr 1.25fr 1.15fr;
  gap:6px;
  padding:4px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
}
.payment-filter{
  min-width:0;
  border:0;
  border-radius:7px;
  padding:7px 5px;
  color:var(--ink-dim);
  background:transparent;
  font:600 11.5px/1.4 inherit;
  cursor:pointer;
  white-space:nowrap;
}
.payment-filter.active{
  color:var(--ink);
  background:var(--surface-2);
  box-shadow:0 1px 5px rgba(0,0,0,.2);
}
.date-sort-control{
  display:flex;align-items:center;justify-content:flex-end;gap:7px;
  margin-top:7px;color:var(--ink-dim);font-size:11.5px;
}
.date-sort-control select{
  min-width:105px;padding:6px 9px;border:1px solid var(--border);border-radius:7px;
  color:var(--ink);background:var(--surface);font:600 11.5px/1.4 inherit;cursor:pointer;
}

/* ---------- Client list ---------- */
.client-list{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-direction:column;
  gap: 8px;
}
.client-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display:flex;
  align-items:center;
  gap: 12px;
  cursor:pointer;
  border-inline-start: 3px solid var(--teal);
}
.client-card.unpaid{
  border-inline-start-color: var(--amber);
}
.client-avatar{
  width:38px;height:38px;
  border-radius: 10px;
  background: var(--surface-2);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;
  font-size: 14px;
  color: var(--ink-dim);
  flex-shrink:0;
}
.client-info{ flex:1; min-width:0; }
.client-name{
  font-weight:700;
  font-size: 14.5px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.client-meta{
  font-size: 12px;
  color: var(--ink-dim);
  margin-top: 2px;
  display:flex;
  gap:6px;
  flex-wrap:wrap;
}
.client-purchase-date{
  display:block;
  margin-top:4px;
  color:var(--amber);
  font-size:11.5px;
  font-variant-numeric:tabular-nums;
}
.client-price{
  text-align:left;
  flex-shrink:0;
}
.client-price .amount{
  font-weight: 800;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.client-price .badge{
  display:inline-block;
  margin-top: 4px;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--teal-dim);
  color: var(--teal);
}
.client-card.unpaid .client-price .badge{
  background: var(--amber-dim);
  color: var(--amber);
}

.empty-state{
  text-align:center;
  padding: 60px 20px;
  color: var(--ink-dim);
}
.empty-state p{ font-weight:700; color: var(--ink); margin-bottom:4px;}

/* ---------- Form ---------- */
.form-header{
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 18px 0 14px;
  position: sticky; top:0;
  background: var(--bg);
  z-index: 5;
}
.back-btn{
  background:none;border:none;color:var(--teal);
  font-family:inherit;font-size:14px;cursor:pointer;
  padding: 4px 0;
}
.form-header h2{ font-size:16px; margin:0; }

.field{
  display:flex;
  flex-direction:column;
  gap: 6px;
  margin-bottom: 14px;
}
.field > span{
  font-size: 12.5px;
  color: var(--ink-dim);
  font-weight: 600;
}
.field input, .field select, .field textarea{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 12px;
  color: var(--ink);
  font-family: inherit;
  font-size: 14.5px;
  width: 100%;
}
.field textarea{ resize: vertical; }
.field .hint{
  font-size: 11px;
  color: var(--ink-dim);
}
.field-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.toggle-field .pay-toggle{ display:flex; gap:8px; }
.pt-btn{
  flex:1;
  padding: 10px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-dim);
  font-family: inherit;
  font-size: 13px;
  cursor:pointer;
}
.pt-btn.pt-paid.active{
  background: var(--teal-dim);
  border-color: var(--teal);
  color: var(--teal);
}
.pt-btn.pt-unpaid.active{
  background: var(--amber-dim);
  border-color: var(--amber);
  color: var(--amber);
}

.form-actions{
  display:flex;
  gap: 10px;
  margin-top: 20px;
}
.primary-btn{
  flex:1;
  background: linear-gradient(155deg, var(--teal), #1a8f75);
  color: #08211a;
  border:none;
  border-radius: var(--radius-sm);
  padding: 13px;
  font-family: inherit;
  font-weight: 700;
  font-size: 14.5px;
  cursor:pointer;
}
.danger-btn{
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid #5c2c2c;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-family: inherit;
  font-size: 13px;
  cursor:pointer;
}

/* ---------- Settings ---------- */
.settings-block{ margin-bottom: 26px; }
.settings-block h3{ font-size: 14.5px; margin: 0 0 4px; }
.settings-block-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom: 10px;
}
.mini-btn{
  background: var(--surface);
  border: 1px solid var(--teal-dim);
  color: var(--teal);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: inherit;
  cursor:pointer;
}
.chip-list{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px;
}
.chip{
  display:flex;
  align-items:center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 8px 7px 12px;
  font-size: 13px;
}
.chip button{
  background: var(--surface-2);
  border:none;
  color: var(--red);
  width: 18px;height:18px;
  border-radius: 50%;
  font-size: 11px;
  line-height:1;
  cursor:pointer;
}
.price-table-wrap{ overflow-x:auto; border-radius: var(--radius); border: 1px solid var(--border); }
.price-table{
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
}
.price-table th, .price-table td{
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  white-space: nowrap;
}
.price-table th{
  background: var(--surface-2);
  color: var(--ink-dim);
  font-weight: 600;
  font-size: 12px;
}
.price-table td:first-child, .price-table th:first-child{
  text-align: right;
  font-weight: 700;
  position: sticky; right:0;
  background: var(--surface);
}
.price-table input{
  width: 74px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--ink);
  padding: 6px;
  font-family: inherit;
  text-align:center;
  font-size: 12.5px;
}
.global-price-form{
  display:grid;grid-template-columns:repeat(3,minmax(110px,1fr)) auto;
  gap:10px;align-items:end;margin:14px 0;
}
.global-price-form .field{margin:0}
.price-table td small{display:block;color:var(--ink-dim);margin-top:3px}
.price-actions{white-space:nowrap}
.price-actions button + button{margin-right:5px}
.price-empty{color:var(--ink-dim);text-align:center;padding:22px!important}
.sheet-manage-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
.sheet-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13.5px;
}
.sheet-row .badge-active{
  font-size: 10px;
  background: var(--teal-dim);
  color: var(--teal);
  padding: 3px 8px;
  border-radius: 20px;
}

/* ---------- Ledger ---------- */
.ledger-cards{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 22px;
}
.ledger-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display:flex;
  flex-direction:column;
  gap: 6px;
}
.ledger-label{ font-size: 12px; color: var(--ink-dim); }
.ledger-value{
  font-size: 17px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.ledger-in .ledger-value{ color: var(--teal); }
.ledger-out .ledger-value{ color: var(--amber); }
.ledger-total{
  grid-column: span 2;
  background: linear-gradient(155deg, var(--surface-2), var(--surface));
  border-color: var(--teal-dim);
}
.ledger-total .ledger-value{ color: var(--teal); font-size: 20px; }

.withdrawal-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
.withdrawal-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-inline-start: 3px solid var(--amber);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  gap: 10px;
}
.withdrawal-row .wd-info{ display:flex; flex-direction:column; gap:2px; min-width:0; }
.withdrawal-row .wd-desc{ font-size: 13px; font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.withdrawal-row .wd-meta{ font-size: 11px; color: var(--ink-dim); }
.withdrawal-row .wd-amount{ font-weight:800; color: var(--amber); font-size:13.5px; white-space:nowrap; }
.withdrawal-row .wd-del{
  background: var(--surface-2);
  border:none; color: var(--red);
  width: 22px;height:22px;border-radius:50%;
  font-size: 12px; cursor:pointer; flex-shrink:0;
}

/* ---------- Bottom nav ---------- */
.bottom-nav{
  position: fixed;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content: space-around;
  padding: 8px 18px calc(8px + env(safe-area-inset-bottom));
  z-index: 20;
}
.nav-btn{
  background:none;border:none;
  color: var(--ink-dim);
  display:flex;flex-direction:column;
  align-items:center;
  gap:2px;
  font-family:inherit;
  font-size: 11px;
  cursor:pointer;
  padding: 4px 14px;
}
.nav-btn.active{ color: var(--teal); }
.nav-icon{ font-size: 18px; }
.nav-fab{
  width: 54px;height:54px;
  border-radius: 50%;
  background: linear-gradient(155deg, var(--teal), #1a8f75);
  color: #08211a;
  border: 4px solid var(--bg);
  font-size: 24px;
  margin-top: -28px;
  cursor:pointer;
  box-shadow: 0 6px 16px rgba(47,214,167,0.35);
}

/* ---------- Toast ---------- */
.toast{
  position: fixed;
  bottom: 100px; left:50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 10px 18px;
  border-radius: 30px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: all .25s ease;
  z-index: 50;
  white-space: nowrap;
}
.toast.show{
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (min-width: 500px){
  #app{
    border-inline: 1px solid var(--border);
    min-height: 100vh;
  }
}

@media (max-width: 640px){
  .global-price-form{grid-template-columns:1fr 1fr}
  .global-price-form .primary-btn{grid-column:1/-1}
  .price-table input{min-width:82px}
}

/* ---------- Excel import ---------- */
.import-result{margin-top:10px;font-size:12px;line-height:1.8;color:var(--ink-dim);white-space:pre-wrap}
.import-result.success{color:var(--teal)}
.import-result.error{color:var(--red)}
button:disabled{opacity:.55;cursor:not-allowed}
.file-picker{
  display:block;padding:16px;border:1px dashed var(--teal);
  border-radius:var(--radius-sm);color:var(--teal);cursor:pointer;
}
.file-picker input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.compact-import{display:grid;grid-template-columns:1fr;gap:8px;margin:14px 0}
.compact-import .file-picker{padding:10px 12px;text-align:center}
.compact-import .primary-btn{width:auto;margin:0;padding-inline:16px}
.compact-import > input{
  width:100%;background:var(--surface-2);color:var(--ink);border:1px solid var(--border);
  border-radius:var(--radius-sm);font-family:inherit;padding:10px 12px;
}
.file-list{list-style:none;margin:14px 0;padding:0;display:flex;flex-direction:column;gap:8px}
.file-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface-2);text-align:right;
}
.file-row.active{border-color:var(--teal)}
.file-info{min-width:0;display:flex;flex-direction:column;gap:3px}
.file-name{font-size:13px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-meta{font-size:10px;color:var(--ink-dim)}
.file-actions{display:flex;align-items:center;gap:5px;flex-shrink:0}
.sheet-info{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.sheet-row.dragging{opacity:.45}
.sheet-row.drag-over{border-color:var(--teal);transform:translateY(2px)}
.sheet-drag-handle{cursor:grab;color:var(--ink-dim);font-size:18px;line-height:1}
.sheet-order-actions{display:flex;gap:3px}
.balance-link-control{display:flex;gap:6px;margin-top:7px}
.balance-link-control select{
  min-width:0;max-width:170px;background:var(--surface-2);color:var(--ink);
  border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:11px;padding:5px;
}
.balance-link-control input{
  min-width:0;width:115px;background:var(--surface-2);color:var(--ink);
  border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:11px;padding:5px;
}
.modal-backdrop{
  position:fixed;inset:0;z-index:90;display:grid;place-items:center;
  padding:20px;background:rgba(5,10,16,.78);backdrop-filter:blur(4px);
}
.modal-backdrop[hidden]{display:none}
.modal-card{
  width:min(100%,420px);max-height:90vh;overflow:auto;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;box-shadow:0 24px 70px rgba(0,0,0,.45);
}
.modal-card h2{font-size:17px;margin:0}
.topbar-actions{display:flex;align-items:center;gap:7px}
.topbar-actions form{margin:0}
.logout-btn{color:var(--ink-dim);font-size:19px}
.sheet-price-choice{
  display:flex;align-items:flex-start;gap:10px;margin:14px 0;padding:13px;
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:13px;cursor:pointer;
}
.sheet-price-choice input{margin-top:4px;accent-color:var(--teal)}
.sheet-price-choice small{display:block;color:var(--ink-dim);margin-top:4px;line-height:1.7}

/* ---------- Login ---------- */
.login-page{
  min-height:100vh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(circle at top, rgba(47,214,167,.12), transparent 42%),var(--bg);
}
.login-card{
  width:min(100%,400px);padding:30px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:0 24px 70px rgba(0,0,0,.38);
}
.login-card h1{font-size:22px;text-align:center;margin:14px 0 6px}
.login-subtitle{text-align:center;color:var(--ink-dim);font-size:13px;margin:0 0 24px}
.login-mark{
  width:52px;height:52px;margin:auto;display:grid;place-items:center;border-radius:16px;
  color:#08211a;background:linear-gradient(155deg,var(--teal),#1a8f75);
  font-size:24px;font-weight:800;box-shadow:0 8px 24px rgba(47,214,167,.24);
}
.login-error{
  color:var(--red);background:rgba(239,96,96,.09);border:1px solid rgba(239,96,96,.3);
  border-radius:var(--radius-sm);padding:10px 12px;font-size:12px;line-height:1.8;
}
.login-card .primary-btn{width:100%;margin-top:8px}