*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #0f1117;
  --surface:  #181c27;
  --border:   #252a38;
  --text:     #e8eaf0;
  --muted:    #5a6070;
  --accent:   #4f8ef7;
  --danger:   #e05c5c;
  --success:  #4caf7d;
  --nav-w:    220px;
  --font:     'DM Sans', sans-serif;
  --mono:     'DM Mono', monospace;
}

/* ── Light theme ── */
body.theme-light {
  --bg:      #f4f5f7;
  --surface: #ffffff;
  --border:  #e0e3ea;
  --text:    #1a1d27;
  --muted:   #8a919e;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  font-size: 14px;
}

/* ── Nav ── */
nav {
  width: var(--nav-w);
  min-height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
  position: fixed;
  top: 0; left: 0;
}

.nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 24px 16px;
}

.nav-links {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.nav-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 24px;
}

.nav-setting {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 24px;
  gap: 12px;
}

.nav-setting-label {
  font-size: 12px;
  color: var(--muted);
}

.nav-currency-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 8px;
  cursor: pointer;
  outline: none;
}
.nav-currency-select:focus { border-color: var(--accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--muted);
  border-radius: 2px;
  transition: all 0.2s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-logo {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--accent);
  padding: 0 24px 32px;
  letter-spacing: -0.5px;
}

nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 24px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 400;
  font-size: 14px;
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}

nav a:hover { color: var(--text); background: rgba(255,255,255,0.03); }
nav a.active { color: var(--text); border-left-color: var(--accent); background: rgba(79,142,247,0.07); font-weight: 500; }

nav a .icon { font-size: 16px; width: 20px; text-align: center; }

/* ── Main ── */
main {
  margin-left: var(--nav-w);
  flex: 1;
  padding: 40px 48px;
  max-width: 1100px;
}

#content { max-width: 860px; }

.page-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin-bottom: 28px;
}

.page-header h1 { grid-column: 1; }
.controls       { grid-column: 2; display: flex; align-items: center; gap: 12px; }
.page-header > div:last-child { grid-column: 3; }

h1 { font-size: 22px; font-weight: 600; letter-spacing: -0.5px; }

h2 {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 16px;
}

/* ── Form ── */
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }

input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 8px 12px;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus { border-color: var(--accent); }
input::placeholder { color: var(--muted); }
select option { background: var(--surface); }

#f-date    { width: 130px; }
#f-cat     { width: 150px; }
#f-item    { flex: 1; min-width: 120px; }
#f-amount  { width: 120px; }
#f-comment { flex: 1; min-width: 120px; }
#c-name    { flex: 1; }

.form-error { color: var(--danger); font-size: 12px; margin-top: 8px; min-height: 16px; }

/* ── Buttons ── */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
  white-space: nowrap;
}
.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 14px;
  font-family: var(--font);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.btn-ghost:hover { border-color: var(--accent); }

.btn-delete {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.btn-delete:hover { color: var(--danger); background: rgba(224,92,92,0.1); }

/* ── Period selector ── */
.controls { display: flex; align-items: center; gap: 12px; }
.period-label {
  font-family: var(--mono);
  font-size: 14px;
  min-width: 140px;
  text-align: center;
  color: var(--text);
}

/* ── Table ── */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  padding: 0 12px 12px;
  border-bottom: 1px solid var(--border);
}
td { padding: 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }
tfoot td { border-top: 1px solid var(--border); border-bottom: none; padding-top: 14px; }
.num { text-align: right; font-family: var(--mono); }
.muted { color: var(--muted); }
.tag {
  background: rgba(79,142,247,0.12);
  color: var(--accent);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 12px;
  white-space: nowrap;
}

/* ── Category list ── */
.cat-list { list-style: none; }
.cat-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.cat-list li:last-child { border-bottom: none; }

/* ── delete confirmation ── */
.delete-confirm-wrap { display: flex; align-items: center; }
.delete-confirm      { display: flex; align-items: center; gap: 6px; }
.delete-confirm[hidden] { display: none; }
.delete-confirm .btn-ghost { padding: 2px 8px; font-size: 12px; }
.delete-confirm .btn-delete { color: var(--danger); }

/* ── States ── */
.loading, .empty, .error { padding: 32px; text-align: center; color: var(--muted); font-size: 13px; }
.error { color: var(--danger); }

.form-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.form-top h2 { margin-bottom: 0; }

/* ── In/Out switch ── */
.type-switch {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
  gap: 2px;
}
.switch-btn {
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 14px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.switch-btn.active[data-type="outgoing"] { background: rgba(224,92,92,0.15);  color: #e05c5c; }
.switch-btn.active[data-type="incoming"] { background: rgba(76,175,125,0.15); color: #4caf7d; }
.switch-btn.active[data-type="saving"]   { background: rgba(230,190,80,0.15); color: #e6be50; }

/* ── Summary bar ── */
.tx-summary {
  display: flex;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.summary-item { flex: 1; padding: 14px 20px; border-right: 1px solid var(--border); }
.summary-item:last-child { border-right: none; }
.summary-net { background: rgba(255,255,255,0.02); }
.summary-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 4px;
}
.summary-val { font-family: var(--mono); font-size: 18px; font-weight: 500; }
.incoming { color: var(--success); }
.outgoing { color: var(--danger); }
.saving   { color: #e6be50; }
.mono { font-family: var(--mono); font-size: 12px; }

/* ── Charts ── */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
}
.widget.wide { grid-column: 1 / -1; }
.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.widget-title { font-size: 13px; font-weight: 600; color: var(--text); }
.widget-sub   { font-size: 11px; color: var(--muted); font-family: var(--mono); }
.chart-nav     { display: flex; align-items: center; gap: 8px; }
.chart-nav-btn { padding: 4px 10px; font-size: 12px; }
.chart-wrap { position: relative; height: 220px; width: 100%; overflow: hidden; }
.pie-layout { display: flex; gap: 32px; align-items: center; }
.pie-wrap   { height: 240px; width: 240px; flex-shrink: 0; overflow: hidden; }

/* ── Pie legend ── */
.pie-legend { flex: 1; display: flex; flex-direction: column; gap: 10px; }
.legend-row { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.legend-dot  { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-label { flex: 1; color: var(--text); }
.legend-val   { font-family: var(--mono); font-size: 12px; color: var(--muted); }

/* ── Pill tabs ── */
.pill-tabs { display: flex; gap: 4px; }
.pill {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--muted);
  font-family: var(--font);
  font-size: 11px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.pill:hover { color: var(--text); border-color: var(--accent); }
.pill.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Date Picker ── */
.dp-popup {
  position: absolute;
  z-index: 1000;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  width: 252px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.dp-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; }
.dp-month-label { font-size: 13px; font-weight: 600; color: var(--text); }
.dp-hint { font-size: 10px; color: var(--muted); }
.dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.dp-weekdays div {
  font-size: 10px; font-weight: 500; color: var(--muted);
  text-align: center; padding: 4px 0; text-transform: uppercase;
}
.dp-day {
  text-align: center; padding: 6px 0; font-size: 12px;
  font-family: var(--mono); border-radius: 5px; cursor: pointer;
  color: var(--text); transition: background 0.1s, color 0.1s;
}
.dp-day:hover     { background: rgba(79,142,247,0.15); color: var(--accent); }
.dp-day.dp-active { background: var(--accent); color: #fff; }

/* ── Nav user ── */
.nav-user {
  margin-top: auto;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-user-name {
  font-size: 12px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.btn-logout {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-family: var(--font);
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
  width: 100%;
  transition: color 0.15s, border-color 0.15s;
}
.btn-logout:hover { color: var(--danger); border-color: var(--danger); }

/* ── Budget page ── */
.budget-hint {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 16px;
  font-style: italic;
}
.budget-table { width: 100%; border-collapse: collapse; }
.budget-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  padding: 0 12px 12px;
  border-bottom: 1px solid var(--border);
}
.budget-table td { padding: 12px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
.budget-table tr:last-child td { border-bottom: none; }
.budget-table tfoot td { border-top: 1px solid var(--border); border-bottom: none; padding-top: 14px; }

.progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  display: inline-block;
  width: 140px;
  vertical-align: middle;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}
.progress-fill.over { background: var(--danger); }
.progress-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-left: 8px;
  vertical-align: middle;
}
.limit-cell {
  display: inline-block;
  min-width: 80px;
  padding: 4px 8px;
  border: 1px dashed var(--border);
  border-radius: 5px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  transition: border-color 0.15s, background 0.15s;
}
.limit-cell:hover {
  border-color: var(--accent);
  background: rgba(79,142,247,0.06);
}

/* ── Login page ── */
body.login {
  align-items: center;
  justify-content: center;
}
.login .card {
  border-radius: 14px;
  padding: 48px 40px;
  width: 340px;
  text-align: center;
  margin-bottom: 0;
}
.logo {
  font-family: var(--mono);
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 8px;
}
.tagline {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 36px;
}
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s;
}
.btn-google:hover { border-color: var(--accent); }
.btn-google svg { width: 18px; height: 18px; }

/* ── Tablet: charts single column ── */
@media (max-width: 900px) {
  .charts-grid { grid-template-columns: 1fr; }
  .widget.wide  { grid-column: 1; }
}

/* ── Mobile: hamburger nav ── */
@media (max-width: 640px) {
  body { flex-direction: column; }

  input, select { font-size: 16px; }

  nav {
    width: 100%; min-height: unset; position: sticky; top: 0;
    flex-direction: column; padding: 0;
    border-right: none; border-bottom: 1px solid var(--border); z-index: 100;
  }

  .nav-top { padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; }
  .nav-logo { padding: 0; }
  .hamburger { display: flex; }

  .nav-links { display: none; flex-direction: column; border-top: 1px solid var(--border); padding-bottom: 8px; }
  .nav-links.open { display: flex; }

  nav a { padding: 12px 20px; border-left: none; border-bottom: none; font-size: 14px; }
  nav a.active { border-left: 2px solid var(--accent); background: rgba(79,142,247,0.07); }

  .nav-divider  { margin: 4px 16px; }
  .nav-setting  { padding: 8px 20px; }

  .nav-user { margin-top: 0; padding: 8px 20px; border-top: none; flex-direction: row; align-items: center; gap: 10px; }
  .nav-user-name { font-size: 12px; }
  .btn-logout { width: auto; }

  main { margin-left: 0; padding: 16px 12px; }
  #content { max-width: 100%; }

  .page-header { grid-template-columns: 1fr auto; margin-bottom: 16px; }
  .page-header > div:last-child { display: none; }

  .card { padding: 16px; }

  .form-top { flex-direction: column; align-items: flex-start; gap: 10px; }
  .form-row { flex-direction: column; }
  .form-row input, .form-row select, .form-row button { width: 100% !important; }

  .pie-layout { flex-direction: column; align-items: center; }
  .pie-wrap   { width: 200px; height: 200px; }

  .tx-summary { flex-wrap: wrap; }
  .summary-item { min-width: 50%; border-right: none; border-bottom: 1px solid var(--border); }

  table { font-size: 12px; display: block; overflow-x: auto; }
  td, th { padding: 8px 6px; white-space: nowrap; }
}

/* ── Plan page ── */

.plan-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.plan-section-header h2 { margin-bottom: 0; }

.plan-add-btn { font-size: 12px; padding: 4px 12px; }

.plan-list { margin-bottom: 4px; }

.plan-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.plan-row:last-child { border-bottom: none; }
.plan-row-name   { flex: 1; }
.plan-row-amount { font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.plan-row-freq   { font-size: 11px; }
.plan-row-yearly { font-family: var(--mono); font-size: 12px; white-space: nowrap; }

.plan-sym {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  margin-right: -4px;
}
.plan-form-error { color: var(--danger); font-size: 12px; }

.add-form-inline { padding: 12px 0 4px; border-top: 1px solid var(--border); }
.add-form-inline .form-row { margin-bottom: 6px; }

.plan-totals { margin-top: 4px; }
.plan-totals-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.plan-totals-label {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
}
.plan-totals-val {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 500;
  margin-right: 20px;
}

/* ── Tax groups ── */

.plan-group {
  padding: 16px 0 16px 16px;
  border-bottom: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  margin-bottom: 12px;
  border-radius: 0 4px 4px 0;
}
.plan-group:last-child { border-bottom: none; margin-bottom: 0; }

.plan-group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.plan-group-name  { font-size: 13px; font-weight: 600; flex: 1; }
.plan-group-total { font-family: var(--mono); font-size: 13px; }

.plan-bands { margin-bottom: 10px; }

.plan-band-btn-bar {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.plan-band-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.plan-band-row:last-child { border-bottom: none; }
.plan-band-name  { flex: 1; }
.plan-band-taper { font-size: 11px; }
.plan-band-range { font-family: var(--mono); font-size: 11px; white-space: nowrap; }
.plan-band-rate  { font-family: var(--mono); font-size: 12px; width: 36px; text-align: right; }
.plan-band-tax   { font-family: var(--mono); font-size: 12px; width: 80px; text-align: right; }

.plan-band-form {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}
.plan-band-form .form-row { margin-bottom: 6px; }
.plan-taper-row { align-items: center; }

.plan-taxable-note {
  font-size: 12px;
  padding: 6px 0 10px;
  color: var(--muted);
}
.plan-taxable-val {
  font-family: var(--mono);
  font-weight: 500;
  color: var(--text);
}

/* ── Plan summary card ── */

.plan-summary-card { margin-top: 0; }

.plan-summary-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.plan-summary-row-2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
}

.plan-summary-item {
  padding: 14px 20px;
  border-right: 1px solid var(--border);
}
.plan-summary-item:last-child { border-right: none; }

/* ── Plan pension ── */

.plan-pension-subheader {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  padding: 10px 0 4px;
}

@media (max-width: 640px) {
  .plan-summary-row,
  .plan-summary-row-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .plan-summary-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .plan-summary-item:last-child { border-bottom: none; }
}