:root {
  --bg: #050505;
  --surface: rgba(0, 0, 0, 0.34);
  --line: rgba(234, 255, 0, 0.22);
  --glass-top: rgba(255, 255, 170, 0.28);
  --lift: rgba(0, 0, 0, 0.5);
  --text: #f6f3df;
  --muted: #a39c78;
  --income: #eaff00;
  --expense: #ffb000;
  --danger: #ff5a3c;
  --button: #eaff00;
  --button-text: #111111;
  --spot: rgba(234, 255, 0, 0.95);
  --spot-edge: rgba(234, 255, 0, 0.28);
  --glow-a: rgba(234, 255, 0, 0.2);
  --glow-b: rgba(255, 176, 0, 0.1);
  --radius: 14px;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f7f4e4;
  --surface: rgba(255, 252, 235, 0.34);
  --line: rgba(17, 17, 17, 0.14);
  --glass-top: rgba(255, 255, 255, 0.7);
  --lift: rgba(0, 0, 0, 0.12);
  --text: #111111;
  --muted: #5e5a42;
  --income: #7a8800;
  --expense: #c47a00;
  --danger: #d6442c;
  --button: #111111;
  --button-text: #eaff00;
  --spot: rgba(122, 136, 0, 0.72);
  --spot-edge: rgba(196, 122, 0, 0.28);
  --glow-a: rgba(234, 255, 0, 0.45);
  --glow-b: rgba(255, 176, 0, 0.28);
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 8% -10%, var(--glow-a) 0%, transparent 62%),
    radial-gradient(720px 480px at 100% 18%, var(--glow-b) 0%, transparent 58%),
    var(--bg);
  color: var(--text);
  font: 15px/1.45 "Segoe UI", system-ui, sans-serif;
}

.app {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--income);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
}

h1, h2 { margin: 0; font-weight: 650; }
h1 { font-size: 32px; letter-spacing: -0.03em; }
h2 { font-size: 16px; }

.toolbar {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.period, .filter {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

select, input, button {
  font: inherit;
  color: inherit;
}

select, input {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  min-width: 0;
  backdrop-filter: blur(10px);
}

select:focus, input:focus {
  outline: 2px solid rgba(234, 255, 0, 0.55);
  border-color: var(--income);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 16px;
  padding: 6px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow:
    0 14px 30px var(--lift),
    inset 0 1px 0 var(--glass-top);
}

button.tab {
  background: transparent;
  color: var(--muted);
  border: 0;
  border-radius: 12px;
  padding: 8px 14px;
  font-weight: 600;
  box-shadow: none;
}

button.tab[aria-selected="true"] {
  color: var(--text);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.06));
  box-shadow:
    inset 0 1px 0 var(--glass-top),
    0 8px 16px var(--lift);
}

.pane[hidden] { display: none; }

.pane.active { animation: pane-in 0.42s ease; }
.pane.leaving { animation: pane-out 0.24s ease forwards; }

@keyframes pane-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

@keyframes pane-out {
  from { opacity: 1; transform: none; }
  to { opacity: 0; transform: translateY(-10px); }
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat, .panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.04) 36%, rgba(255, 255, 255, 0.02) 62%, rgba(0, 0, 0, 0.1)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: blur(22px) saturate(170%);
  box-shadow:
    0 22px 40px var(--lift),
    0 2px 0 rgba(255, 255, 255, 0.16),
    inset 0 1px 0 var(--glass-top),
    inset 0 -22px 36px rgba(0, 0, 0, 0.16);
  transform: translateZ(0);
}

.stat::before, .panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: radial-gradient(
    36px circle at var(--mx, -80px) var(--my, -80px),
    var(--spot),
    var(--spot-edge) 46%,
    transparent 74%
  );
}

.stat::after, .panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, var(--glass-top), transparent 34%);
  opacity: 0.55;
}

.stat > *, .panel > * {
  position: relative;
  z-index: 2;
}

.stat { padding: 16px 18px; }
.stat p { margin: 0 0 6px; color: var(--muted); font-size: 13px; }
.stat strong { font-size: 28px; letter-spacing: -0.03em; }
.stat.income strong { color: var(--income); }
.stat.expense strong { color: var(--expense); }
.stat.balance strong.negative { color: var(--danger); }

.charts {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 14px;
}

.panel { padding: 16px; }
.panel h2 { margin-bottom: 12px; }
.wide { grid-column: 1; }
.charts .panel:nth-child(2),
.charts .panel:nth-child(3) { grid-column: auto; }

canvas {
  width: 100%;
  height: auto;
  display: block;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 12px;
}

.legend li { display: flex; align-items: center; gap: 6px; }
.swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
  background: currentColor;
}
.swatch.income { background: var(--income); }
.swatch.expense { background: var(--expense); }

.pane-form .form {
  width: min(560px, 100%);
}

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form h2, .form .full, .form .error, .form .actions { grid-column: 1 / -1; }

label { display: grid; gap: 6px; color: var(--muted); font-size: 12px; }

.actions { display: flex; gap: 8px; }

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--button);
  color: var(--button-text);
  cursor: pointer;
  font-weight: 650;
}

button:hover { filter: brightness(1.05); }

button.ghost, button.tiny {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  font-weight: 500;
}

button.tiny { padding: 6px 10px; font-size: 13px; }
button.danger { color: var(--danger); }

.error { margin: 0; color: var(--danger); font-size: 13px; }

.list-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.ops { list-style: none; margin: 0; padding: 0; }

.op {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.op strong { display: block; }
.meta { color: var(--muted); font-size: 12px; }
.amount.income { color: var(--income); }
.amount.expense { color: var(--expense); }
.row-actions { display: flex; gap: 6px; }

.empty { margin: 12px 0 0; color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  .pane.active, .pane.leaving { animation: none; }
}

@media (max-width: 900px) {
  .charts, .stats { grid-template-columns: 1fr; }
  .wide { grid-column: auto; }
}

@media (max-width: 640px) {
  .top, .list-head, .toolbar { flex-direction: column; align-items: stretch; }
  h1 { font-size: 26px; }
  .op { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
}