:root{
  color-scheme: dark;
  --bg: #0b1220;
  --bg2: #0f1a2f;
  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.7);
  --faint: rgba(255,255,255,0.5);
  --border: rgba(255,255,255,0.12);
  /* --shadow: 0 18px 40px rgba(0,0,0,0.32); */
  --primary: #6ee7ff;
  --primary2:#7c3aed;
  --success:#34d399;
  --danger:#fb7185;
  --warning:#fbbf24;
  --radius: 16px;
  --radius-sm: 12px;
  --focus: 0 0 0 4px rgba(110,231,255,0.22);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

body.light{
  color-scheme: light;
  --bg: #f6f7fb;
  --bg2: #ffffff;
  --card: rgba(0,0,0,0.04);
  --card2: rgba(0,0,0,0.06);
  --text: rgba(0,0,0,0.86);
  --muted: rgba(0,0,0,0.62);
  --faint: rgba(0,0,0,0.42);
  --border: rgba(0,0,0,0.12);
  --shadow: 0 18px 40px rgba(20,20,30,0.12);
  --primary: #0284c7;
  --primary2:#7c3aed;
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: var(--font);
   background:/* radial-gradient(1200px 500px at 20% 0%, rgba(124,58,237,0.25), transparent 60%),
              radial-gradient(900px 500px at 80% 10%, rgba(110,231,255,0.25), transparent 55%),*/
              linear-gradient(180deg, var(--bg), var(--bg2)); 
  color: var(--text);
}

.app-shell{
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 16px 40px;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  box-shadow: var(--shadow);
}

.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width: 240px;
}
.brand-mark{
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 30%, rgba(110,231,255,0.9), rgba(124,58,237,0.85));
  box-shadow: 0 12px 26px rgba(124,58,237,0.25);
}
.brand-title{ font-weight: 800; letter-spacing: -0.02em; }
.brand-subtitle{ font-size: 12px; color: var(--muted); margin-top: 2px; }

.topbar-controls{
  display:flex;
  align-items:center;
  gap: 12px;
}

.control{ display:flex; flex-direction: column; gap: 6px; }
.control-label{ font-size: 12px; color: var(--muted); }

.control-select, .select, .input{
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
}
.control-select:focus, .select:focus, .input:focus{ box-shadow: var(--focus); }

/* Native <select> lists: fix invisible options on Windows/Chrome in dark UI */
.control-select option,
.select option{
  background-color: #141c2b;
  color: rgba(255, 255, 255, 0.92);
}
body.light .control-select option,
body.light .select option{
  background-color: #ffffff;
  color: rgba(0, 0, 0, 0.86);
}

.content{ margin-top: 16px; }

.overview .section-head, .card-head{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 12px;
}

.section-head h2{
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.section-meta{ font-size: 12px; color: var(--muted); margin-top: 6px; }

.cards{
  margin-top: 12px;
  display:grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  padding: 14px 14px;
  position: relative;
  overflow: hidden;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
  will-change: transform;
}
.summary-card:hover{ transform: translateY(-3px) scale(1.01); border-color: rgba(110,231,255,0.35); box-shadow: 0 14px 26px rgba(0,0,0,0.14); }

.summary-card .label{ color: var(--muted); font-size: 12px; }
.summary-card .value{ font-size: 22px; margin-top: 8px; font-weight: 800; letter-spacing: -0.02em; }
.summary-card .hint{ margin-top: 6px; font-size: 12px; color: var(--muted); display:flex; gap: 8px; align-items:center; }
.dot{
  width: 8px; height: 8px; border-radius: 999px; background: var(--primary);
}

.charts-grid{
  margin-top: 12px;
  display:grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.two-col{
  margin-top: 12px;
  display:grid;
  gap: 12px;
  grid-template-columns: 1.3fr 0.7fr;
}

.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  padding: 14px 14px;
  min-width: 0;
  overflow:hidden;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
  will-change: transform;
}
.card:hover{
  transform: translateY(-2px) scale(1.005);
  border-color: rgba(110,231,255,0.25);
  box-shadow: 0 14px 24px rgba(0,0,0,0.12);
}
.chart-card{ padding-bottom: 10px; }
.card-title{ font-weight: 800; }
.card-subtitle{ font-size: 12px; color: var(--muted); margin-top: 3px; }

.chip{
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.card-head .chip{ margin-top: 2px; }

.chart-wrap{
  position: relative;
  margin-top: 10px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(0,0,0,0.12);
  padding: 10px 10px;
}
body.light .chart-wrap{
  background: rgba(255,255,255,0.7);
}

canvas{ width: 100%; height: 220px; display:block; }
#spendingBreakdownChart{ height: 220px; }
#balanceTrendChart{ height: 220px; }

.transactions-card{ padding-bottom: 12px; }

.tx-actions{
  display:flex;
  gap: 10px;
  align-items:center;
}
.filters{
  display:grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
  padding: 12px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
}
.filter-group{ display:flex; flex-direction: column; gap: 7px; }
.filter-label{ font-size: 12px; color: var(--muted); }

.btn{
  cursor:pointer;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.btn:hover{ transform: translateY(-2px) scale(1.015); border-color: rgba(110,231,255,0.35); box-shadow: 0 10px 18px rgba(0,0,0,0.12); }
.btn:focus{ outline:none; box-shadow: var(--focus); }
.btn:disabled{ opacity: 0.55; cursor:not-allowed; transform:none; }

.btn-primary{
  background: linear-gradient(135deg, rgba(110,231,255,0.25), rgba(124,58,237,0.2));
  border-color: rgba(110,231,255,0.32);
}
.btn-ghost{
  background: rgba(255,255,255,0.04);
}

.btn-row{
  display:flex;
  gap: 10px;
  justify-content: flex-end;
}

.table-head{
  display:grid;
  grid-template-columns: minmax(72px, 130px) minmax(8rem, 1.4fr) minmax(72px, 130px) minmax(64px, 110px) minmax(76px, 120px);
  gap: 10px;
  margin-top: 14px;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 12px;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  width: 100%;
  min-width: 0;
}
.table-scroll{
  width: 100%;
  overflow-x: auto;
  padding-bottom: 2px;
}

.table-head > *{
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tx-list{
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  width: 100%;
  min-width: 0;
}

.tx-row{
  display:grid;
  grid-template-columns: minmax(72px, 130px) minmax(8rem, 1.4fr) minmax(72px, 130px) minmax(64px, 110px) minmax(76px, 120px);
  gap: 10px;
  padding: 10px 10px;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.tx-row:hover{ border-color: rgba(110,231,255,0.26); transform: translateY(-2px) scale(1.003); box-shadow: 0 8px 18px rgba(0,0,0,0.1); }

.tx-row > *{
  min-width: 0;
}

.tx-right{ text-align: right; }
.mono{ font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
.pos{ color: var(--success); font-weight: 800; }
.neg{ color: var(--danger); font-weight: 800; }

.actions{
  display:flex;
  gap: 8px;
  justify-content: flex-end;
}
.icon-btn{
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  cursor:pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.icon-btn:hover{ transform: translateY(-1px) scale(1.02); border-color: rgba(110,231,255,0.3); }
.icon-btn:disabled{ opacity: 0.45; cursor:not-allowed; }

.empty-state{
  margin-top: 12px;
  padding: 14px;
  border: 1px dashed rgba(255,255,255,0.24);
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}
.empty-illustration{
  font-size: 26px;
  line-height: 1;
  margin-bottom: 8px;
  opacity: 0.85;
}
.empty-title{ font-weight: 900; }
.empty-subtitle{ margin-top: 6px; color: var(--muted); font-size: 12px; }

.insights-grid{
  margin-top: 12px;
  display:grid;
  gap: 10px;
}
.insight{
  padding: 12px 12px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
}
.insight .k{ font-size: 12px; color: var(--muted); }
.insight .v{ margin-top: 7px; font-weight: 900; line-height: 1.2; }
.insight .s{ margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.35; }
.insights-note{
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.insights-head-actions{
  display:flex;
  gap: 8px;
  align-items:center;
}
.insights-toggle{
  display:none;
  padding: 6px 10px;
  font-size: 12px;
}

/* Modal */
.modal-backdrop{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display:flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
  animation: fadeIn 160ms ease;
}
@keyframes fadeIn{ from{ opacity: 0; } to{ opacity: 1; } }

.modal{
  width: min(640px, 100%);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #1a2438, #121b2e);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow:hidden;
  animation: modalIn 220ms ease;
}
@keyframes modalIn{
  from{ opacity: 0; transform: translateY(8px) scale(0.985); }
  to{ opacity: 1; transform: translateY(0) scale(1); }
}
body.light .modal{
  background: linear-gradient(180deg, #ffffff, #f2f4fa);
}
.modal-head{
  padding: 14px 14px;
  display:flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.modal-title{ font-weight: 1000; }
.modal-body{ padding: 14px 14px; }
.form-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.form-group{ display:flex; flex-direction: column; gap: 7px; }
.form-group label{ font-size: 12px; color: var(--muted); }
.form-group input, .form-group select{
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  outline:none;
}
.modal-foot{
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  display:flex;
  justify-content: flex-end;
  gap: 10px;
}
.danger-text{ color: var(--danger); }
.hint-text{ font-size: 12px; color: var(--muted); }

/* Responsive */
@media (max-width: 1050px){
  .cards{ grid-template-columns: 1fr; }
  .charts-grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
  .filters{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .table-head, .tx-row{
    grid-template-columns: minmax(64px, 110px) minmax(6.5rem, 1fr) minmax(64px, 110px) minmax(56px, 90px) minmax(68px, 110px);
  }
  canvas{ height: 200px; }
}

@media (max-width: 600px){
  .topbar{ flex-direction: column; align-items: flex-start; }
  .topbar-controls{ width: 100%; justify-content: space-between; }
  .filters{ grid-template-columns: 1fr; }
  .table-head, .tx-row{
    min-width: 620px;
    grid-template-columns: minmax(56px, 96px) minmax(5.5rem, 1fr) minmax(56px, 96px) minmax(48px, 80px) minmax(60px, 96px);
    gap: 8px;
  }
}

@media (max-width: 900px){
  .insights-toggle{
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .insights-card.collapsed .insights-body{
    display: none;
  }
}