@font-face {
  font-family: 'Vazirmatn';
  src: url('https://cdn.jsdelivr.net/npm/vazirmatn@33.0.3/Vazirmatn-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('https://cdn.jsdelivr.net/npm/vazirmatn@33.0.3/Vazirmatn-Medium.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('https://cdn.jsdelivr.net/npm/vazirmatn@33.0.3/Vazirmatn-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'Vazirmatn';
  src: url('https://cdn.jsdelivr.net/npm/vazirmatn@33.0.3/Vazirmatn-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

:root {
  --bg: #14171c;
  --surface: #1b1f27;
  --surface-2: #232935;
  --border: #2b3140;
  --text: #eceff3;
  --text-dim: #8b93a3;
  --accent: #3fb88c;
  --accent-soft: rgba(63, 184, 140, 0.14);
  --warn: #e8a33d;
  --warn-soft: rgba(232, 163, 61, 0.14);
  --danger: #e2604f;
  --danger-soft: rgba(226, 96, 79, 0.14);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Vazirmatn', Tahoma, sans-serif;
  direction: rtl;
}

body {
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

#app {
  max-width: 560px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 96px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 8px;
}

.topbar h1 {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.2px;
}

.icon-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn:active { background: var(--surface-2); }

.summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 14px 20px 6px;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-label {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.stat-value {
  display: block;
  font-size: 19px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-value.accent { color: var(--warn); }

.list {
  padding: 10px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 20px;
  font-size: 14.5px;
  line-height: 2;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  border-inline-start: 3px solid var(--border);
}
.card.status-done { border-inline-start-color: var(--accent); }
.card.status-soon { border-inline-start-color: var(--warn); }
.card.status-overdue { border-inline-start-color: var(--danger); }

.card-head {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
}

.card-title-wrap { min-width: 0; }

.card-title {
  font-size: 15.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-sub {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 3px;
}

.card-amount {
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.card-meta {
  display: flex;
  gap: 14px;
  padding: 0 16px 14px;
  font-size: 12.5px;
  color: var(--text-dim);
}

.card-meta b { color: var(--text); font-weight: 600; }

.card-body {
  border-top: 1px solid var(--border);
  padding: 6px 8px;
  display: none;
}
.card-body.open { display: block; }

.month-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 8px;
  border-radius: 10px;
}
.month-row:active { background: var(--surface-2); }

.month-check {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: transparent;
}
.month-row.paid .month-check {
  background: var(--accent);
  border-color: var(--accent);
  color: #0d1310;
}

.month-label { flex: 1; font-size: 14px; }
.month-row.paid .month-label { color: var(--text-dim); text-decoration: line-through; }

.month-tag {
  font-size: 11.5px;
  color: var(--warn);
  background: var(--warn-soft);
  padding: 3px 8px;
  border-radius: 20px;
}

.card-actions {
  display: flex;
  gap: 8px;
  padding: 10px 8px 12px;
  border-top: 1px solid var(--border);
}

.text-btn {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 13.5px;
  cursor: pointer;
}
.text-btn.danger { color: var(--danger); }

.fab {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--accent);
  color: #0d1310;
  font-size: 28px;
  border: none;
  box-shadow: 0 8px 24px rgba(63, 184, 140, 0.35);
  cursor: pointer;
  max-width: 560px;
}

.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: flex-end;
  z-index: 40;
}
.sheet-overlay.hidden { display: none; }

.sheet {
  background: var(--surface);
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  border-radius: 20px 20px 0 0;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom));
  max-height: 88vh;
  overflow-y: auto;
}

.sheet h2 {
  margin: 4px 0 18px;
  font-size: 17px;
  font-weight: 700;
}

.sheet label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.sheet input, .sheet select {
  width: 100%;
  margin-top: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 12px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 14.5px;
}

.row3 {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 8px;
}

.sheet-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.sheet-actions button {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  border: none;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
}

#cancelBtn { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.sheet-actions button[type="submit"] { background: var(--accent); color: #0d1310; }

.sync-code {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 4px;
  text-align: center;
  background: var(--surface-2);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 16px;
  margin: 10px 0 18px;
  font-variant-numeric: tabular-nums;
  direction: ltr;
}

.hint {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.9;
  margin-bottom: 14px;
}

.notify-banner {
  margin: 0 20px 4px;
  background: var(--warn-soft);
  border: 1px solid rgba(232, 163, 61, 0.3);
  color: var(--warn);
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.notify-banner button {
  background: var(--warn);
  color: #241a05;
  border: none;
  padding: 7px 12px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

#toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 60;
}
#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-6px);
}

@media (prefers-reduced-motion: reduce) {
  #toast { transition: none; }
}