/* ── THEME VARIABLES ─────────────────────────────────────────────────── */
:root {
  --bg:         #0c1419;
  --surface:    #142129;
  --panel:      #1a2c36;
  --border:     #27404d;
  --muted:      #667f8c;
  --dim:        #a6bac4;
  --light:      #dce6eb;
  --bright:     #f6fafc;
  --accent:     #33c7a5;
  --accent-dim: #1fa385;
  --danger:     #ff6f61;
  --warn:       #f2be5a;
  --safe:       #33c7a5;
  --text-inv:   #04231d;
  --shadow:     0 18px 44px rgba(3, 10, 14, .5);
  --shadow-sm:  0 8px 20px rgba(3, 10, 14, .35);
  --radius:     12px;
  --mono:       'Geist Mono', monospace;
  --serif:      'Instrument Serif', serif;
  --transition: .18s ease;
}

[data-theme="light"] {
  --bg:         #eef4f7;
  --surface:    #ffffff;
  --panel:      #f6fbfd;
  --border:     #d7e5ec;
  --muted:      #8ea0aa;
  --dim:        #5e7380;
  --light:      #1f313d;
  --bright:     #0f212c;
  --accent:     #0f9f83;
  --accent-dim: #0a836c;
  --danger:     #c64646;
  --warn:       #b6842d;
  --safe:       #0f9f83;
  --text-inv:   #ffffff;
  --shadow:     0 16px 36px rgba(13, 35, 48, .12);
  --shadow-sm:  0 8px 20px rgba(13, 35, 48, .1);
}

/* ── RESET & BASE ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
  min-height: 100%;
  background: var(--bg);
  color: var(--light);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    radial-gradient(1200px 560px at -12% -14%, rgba(51, 199, 165, .16), transparent 60%),
    radial-gradient(1000px 460px at 108% -18%, rgba(77, 171, 247, .15), transparent 58%),
    linear-gradient(180deg, rgba(255,255,255,.02), transparent 30%);
}

[data-theme="light"] body::before {
  background:
    radial-gradient(1100px 560px at -20% -20%, rgba(15, 159, 131, .12), transparent 62%),
    radial-gradient(940px 420px at 110% -16%, rgba(41, 123, 201, .11), transparent 58%);
}

body::after {
  background-image: linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .25;
}

[data-theme="light"] body::after {
  background-image: linear-gradient(rgba(9,44,62,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(9,44,62,.05) 1px, transparent 1px);
  opacity: .35;
}

::selection { background: var(--accent); color: var(--text-inv); }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 2px; }

/* ── TYPOGRAPHY ──────────────────────────────────────────────────────── */
.font-serif  { font-family: var(--serif); }
.font-mono   { font-family: var(--mono); }
.text-bright { color: var(--bright); }
.text-light  { color: var(--light); }
.text-dim    { color: var(--dim); }
.text-muted  { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-warn   { color: var(--warn); }
.text-safe   { color: var(--safe); }

/* ── LAYOUT ──────────────────────────────────────────────────────────── */
.app-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.app-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── HEADER ──────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  backdrop-filter: blur(8px);
  flex-shrink: 0;
  gap: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.app-wordmark {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--bright);
  letter-spacing: -.01em;
  line-height: 1;
  user-select: none;
}

.nav-tabs {
  display: flex;
  gap: 8px;
  height: 56px;
  align-items: center;
}

.nav-tab {
  padding: 8px 14px 8px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  white-space: nowrap;
}

.nav-tab:hover { color: var(--dim); }
.nav-tab.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(51, 199, 165, .14);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-month {
  font-size: 11px;
  color: var(--dim);
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ── ICON BUTTONS ────────────────────────────────────────────────────── */
.icon-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  cursor: pointer;
  transition: all var(--transition);
  border-radius: 4px;
  flex-shrink: 0;
}

.icon-btn:hover {
  background: var(--panel);
  color: var(--light);
  border-color: var(--muted);
}

.icon-btn svg { width: 14px; height: 14px; }

/* ── BUTTONS ─────────────────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: var(--text-inv);
  border: none;
  padding: 8px 16px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(51, 199, 165, .25);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 25%, transparent);
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

[data-theme="light"] .btn-primary:hover { background: var(--accent-dim); color: #fff; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  padding: 7px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: all var(--transition);
  border-radius: 999px;
}

.btn-ghost:hover { border-color: var(--muted); color: var(--light); }

.btn-link {
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  transition: color var(--transition);
  letter-spacing: .04em;
}

.btn-link:hover { color: var(--dim); }
.btn-link.danger { color: var(--danger); }
.btn-link.danger:hover { color: #ff8f88; }

/* ── DROPDOWN MENU ───────────────────────────────────────────────────── */
.dropdown-wrapper {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  min-width: 180px;
  z-index: 200;
  display: none;
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  overflow: hidden;
}

.dropdown-menu.open { display: block; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--light);
  cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--border);
}

.dropdown-item:last-child { border-bottom: none; }
.dropdown-item:hover { background: var(--panel); }

.dropdown-label {
  padding: 8px 14px 4px;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ── SIDEBAR ─────────────────────────────────────────────────────────── */
.sidebar {
  width: 160px;
  border-right: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-label {
  padding: 20px 16px 10px;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.month-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 16px;
  font-size: 12px;
  cursor: pointer;
  color: var(--dim);
  letter-spacing: .04em;
  transition: all var(--transition);
  border-left: 2px solid transparent;
  border-radius: 0 10px 10px 0;
}

.month-item:hover { color: var(--light); background: var(--panel); }

.month-item.active {
  color: var(--accent);
  background: var(--panel);
  border-left-color: var(--accent);
}

.month-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}

.month-dot.safe   { background: var(--safe); }
.month-dot.warn   { background: var(--warn); }
.month-dot.danger { background: var(--danger); }
.month-dot.empty  { background: var(--border); }

/* ── MAIN CONTENT ────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  overflow-y: auto;
  background: var(--bg);
}

/* ── SUMMARY BAR ─────────────────────────────────────────────────────── */
.summary-bar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.5fr;
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-radius: var(--radius);
  margin: 14px 14px 0;
  overflow: hidden;
}

.summary-cell {
  padding: 20px 24px;
  border-right: 1px solid var(--border);
}

.summary-cell:last-child { border-right: none; }

.summary-label {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.summary-value {
  font-size: 24px;
  font-family: var(--mono);
  color: var(--bright);
  line-height: 1;
}

.summary-ring-cell {
  padding: 16px 18px;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  border-left: 1px solid var(--border);
  background: linear-gradient(165deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 55%);
}

.summary-overview {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-overview-donut-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 0 6px;
}

#sum-quick-donut {
  width: 108px;
  height: 108px;
  display: block;
}

.summary-overview-title {
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}

.summary-overview-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 11px;
}

.summary-overview-k {
  color: var(--dim);
}

.summary-overview-v {
  color: var(--bright);
  font-family: var(--mono);
}

.summary-overview-foot {
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px dashed var(--border);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .04em;
}

/* ── CATEGORY GROUPS ─────────────────────────────────────────────────── */
.groups-container {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.group-section {}

.group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.group-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.group-name {
  font-size: 11px;
  color: var(--dim);
  letter-spacing: .1em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.group-header-cols {
  display: flex;
  gap: 0;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.col-budgeted  { width: 96px; text-align: right; }
.col-spent     { width: 96px; text-align: right; }
.col-left      { width: 80px; text-align: right; }
.col-received  { width: 96px; text-align: right; }
.col-actions   { width: 24px; }

.group-table {
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* ── CATEGORY ROWS ───────────────────────────────────────────────────── */
.cat-row {
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--panel);
  cursor: pointer;
  transition: background var(--transition);
}

.cat-row:last-child { border-bottom: none; }
.cat-row:hover  { background: var(--panel); }
[data-theme="light"] .cat-row:hover { background: #eef6f9; }

.cat-row-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cat-name {
  font-size: 13px;
  color: var(--light);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cat-amounts {
  display: flex;
  gap: 0;
  align-items: center;
}

.cat-amount {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  text-align: right;
}

.cat-row-progress {
  margin-top: 8px;
}

.progress-track {
  background: var(--border);
  height: 3px;
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width .5s ease;
}

.progress-fill.safe   { background: var(--safe); }
.progress-fill.warn   { background: var(--warn); }
.progress-fill.danger { background: var(--danger); }

.group-total-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border-top: 1px solid var(--border);
}

[data-theme="light"] .group-total-row { background: #edf5f9; }

/* ── TRANSACTIONS ────────────────────────────────────────────────────── */
.tx-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.search-input {
  flex: 1;
  max-width: 340px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--light);
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 12px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  border-radius: 10px;
}

.search-input::placeholder { color: var(--muted); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(51, 199, 165, .26);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 26%, transparent);
}

.filter-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--light);
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 12px;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  border-radius: 10px;
}

.filter-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(51, 199, 165, .26);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 26%, transparent);
}

.tx-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  margin-bottom: 2px;
  transition: background var(--transition);
  cursor: default;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.tx-row:hover { background: var(--panel); }
[data-theme="light"] .tx-row:hover { background: #eef6f9; }

.tx-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.tx-date {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  width: 48px;
  flex-shrink: 0;
}

.tx-info { min-width: 0; }
.tx-payee {
  font-size: 13px;
  color: var(--light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tx-cat {
  font-size: 11px;
  color: var(--muted);
}

.tx-memo {
  font-size: 11px;
  color: var(--dim);
  font-style: italic;
  margin-top: 1px;
}

.tx-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.tx-amount {
  font-family: var(--mono);
  font-size: 13px;
}

.tx-badge {
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 2px;
  font-weight: 600;
}

.tx-badge.income {
  background: rgba(200,240,100,.15);
  color: var(--safe);
}

.tx-badge.expense {
  background: rgba(255,95,87,.1);
  color: var(--danger);
}

[data-theme="light"] .tx-badge.income {
  background: rgba(90,138,0,.12);
}

[data-theme="light"] .tx-badge.expense {
  background: rgba(192,57,43,.1);
}

.tx-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--transition);
}

.tx-row:hover .tx-actions { opacity: 1; }

.tx-action-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 3px;
  transition: all var(--transition);
  color: var(--muted);
}

.tx-action-btn:hover { background: var(--border); color: var(--light); }
.tx-action-btn.del:hover { background: rgba(255,95,87,.15); color: var(--danger); }

/* ── OVERVIEW ────────────────────────────────────────────────────────── */
.overview-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.kpi-label {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.kpi-value {
  font-family: var(--mono);
  font-size: 26px;
  color: var(--bright);
  line-height: 1;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 16px;
}

.overview-breakdown {
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.overview-section-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.overview-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}

.overview-row:last-child { border-bottom: none; }

.overview-row-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.overview-row-name { flex: 1; font-size: 13px; color: var(--light); }
.overview-row-pct  { font-family: var(--mono); font-size: 11px; color: var(--dim); width: 38px; text-align: right; }
.overview-row-amt  { font-family: var(--mono); font-size: 12px; color: var(--dim); width: 80px; text-align: right; }
.overview-row-bar  { flex: 0 0 80px; }

.donut-wrapper {
  border: 1px solid var(--border);
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

#donut-canvas {
  width: 180px;
  height: 180px;
  display: block;
}

.donut-title {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 16px;
  align-self: flex-start;
}

.donut-legend {
  width: 100%;
  margin-top: 16px;
}

.donut-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  border-radius: 8px;
  padding-inline: 8px;
  transition: background var(--transition);
}

.donut-legend-item:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); }

.donut-legend-item:last-child { border-bottom: none; }

.donut-legend-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.donut-legend-name { flex: 1; color: var(--light); }
.donut-legend-val  { font-family: var(--mono); color: var(--dim); }

/* ── RIGHT PANEL ─────────────────────────────────────────────────────── */
.right-panel {
  width: 256px;
  border-left: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

.panel-section {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.panel-section:last-child { border-bottom: none; }

.panel-label {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.spending-item {
  margin-bottom: 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px;
  margin-inline: -8px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.spending-item:last-child { margin-bottom: 0; }

.spending-item.clickable {
  cursor: pointer;
}

.spending-item.clickable:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  transform: translateY(-1px);
}

.spending-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.spending-name {
  font-size: 12px;
  color: var(--light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}

.spending-amt {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
}

.recent-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.recent-item:last-child { border-bottom: none; }

.recent-payee { font-size: 12px; color: var(--light); }
.recent-cat   { font-size: 11px; color: var(--muted); }
.recent-amt   { font-family: var(--mono); font-size: 12px; flex-shrink: 0; margin-left: 8px; }

/* ── FORMS / MODAL ───────────────────────────────────────────────────── */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}

#modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  width: 440px;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  animation: slideUp .25s ease;
}

.modal-header {
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-title {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--bright);
  line-height: 1;
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  border-radius: 3px;
  transition: all var(--transition);
}

.modal-close:hover { background: var(--panel); color: var(--light); }

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.input-field {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--light);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  border-radius: 10px;
}

[data-theme="light"] .input-field { background: #f7f5f0; }

.input-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(51, 199, 165, .26);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 26%, transparent);
}
.input-field::placeholder { color: var(--muted); }

.input-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .06em;
  margin-bottom: 2px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ── LOGIN ───────────────────────────────────────────────────────────── */
#login-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .3s ease;
}

.login-card {
  width: 340px;
}

.login-brand { margin-bottom: 40px; }

.login-eyebrow {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.login-wordmark {
  font-family: var(--serif);
  font-size: 52px;
  color: var(--bright);
  line-height: 1;
}

.login-form { display: flex; flex-direction: column; gap: 10px; }

.login-error {
  font-size: 12px;
  color: var(--danger);
  display: none;
  margin-bottom: 4px;
}

.login-hint {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin-top: 20px;
}

.login-theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
}

/* ── TOAST ───────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--light);
  padding: 9px 16px;
  font-size: 12px;
  letter-spacing: .04em;
  box-shadow: var(--shadow-sm);
  animation: toastIn .25s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
}

.toast.success { border-left: 3px solid var(--safe); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent); }

/* ── COPY MONTH BANNER ───────────────────────────────────────────────── */
.copy-month-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--dim);
  margin: 14px 14px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

[data-theme="light"] .copy-month-banner { background: #edf5f9; }

/* ── TABS ────────────────────────────────────────────────────────────── */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── ANIMATIONS ──────────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(10px); }
}

.fade-in { animation: fadeIn .3s ease; }

*:focus-visible {
  outline: 2px solid rgba(51, 199, 165, .85);
  outline: 2px solid color-mix(in srgb, var(--accent) 75%, white);
  outline-offset: 2px;
}

/* ── PRINT STYLES ────────────────────────────────────────────────────── */
@media print {
  #login-screen, .app-header, .sidebar, .right-panel,
  .tx-actions, .btn-primary, .nav-tabs, .icon-btn,
  .copy-month-banner { display: none !important; }

  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 11px;
  }

  .app-body { overflow: visible; height: auto; }
  .main-content { overflow: visible; }

  .summary-bar {
    background: #fff !important;
    border-bottom: 1px solid #ccc !important;
  }

  .tx-row, .cat-row, .group-table {
    border-color: #ccc !important;
    background: #fff !important;
  }

  .summary-value, .cat-amount, .tx-amount, .kpi-value {
    color: #000 !important;
  }

  .text-accent { color: #386b00 !important; }
  .text-danger { color: #c0392b !important; }

  .progress-fill.safe   { background: #386b00 !important; }
  .progress-fill.warn   { background: #b07800 !important; }
  .progress-fill.danger { background: #c0392b !important; }
}

/* ── UTILITIES ───────────────────────────────────────────────────────── */
.hidden { display: none !important; }
.flex   { display: flex; }
.flex-1 { flex: 1; }
.gap-8  { gap: 8px; }
.gap-10 { gap: 10px; }
.mt-4   { margin-top: 4px; }
.mt-8   { margin-top: 8px; }
.mt-16  { margin-top: 16px; }
.mb-4   { margin-bottom: 4px; }
.mb-8   { margin-bottom: 8px; }
.mb-16  { margin-bottom: 16px; }
.p-24   { padding: 24px; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: .08em; }
.w-20 { width: 80px; }
.w-24 { width: 96px; }
.shrink-0 { flex-shrink: 0; }

/* ── RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 1180px) {
  .sidebar { width: 144px; }
  .right-panel { width: 220px; }
  .summary-value { font-size: 21px; }
}

@media (max-width: 980px) {
  .right-panel { display: none; }
  .summary-bar { grid-template-columns: 1fr 1fr; }
  .summary-ring-cell { grid-column: 1 / -1; border-top: 1px solid var(--border); }
}

@media (max-width: 760px) {
  .app-shell { height: auto; min-height: 100vh; }
  .app-body { flex-direction: column; overflow: visible; }
  .app-header {
    height: auto;
    padding: 14px;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
  .header-left,
  .header-right {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
  }
  .nav-tabs {
    order: 3;
    width: 100%;
    height: auto;
    overflow-x: auto;
    padding-bottom: 2px;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar-label { padding: 14px 14px 8px; }
  #month-list {
    display: flex;
    overflow-x: auto;
    padding: 0 8px 10px;
    gap: 6px;
  }
  .month-item {
    border-left: none;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 7px 12px;
    gap: 6px;
  }
  .main-content { overflow: visible; }
  .summary-bar,
  .copy-month-banner { margin: 12px 10px 0; }
  .summary-cell { padding: 16px; }
  .groups-container { padding: 14px 10px 18px; gap: 16px; }
  .group-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .group-header-cols { width: 100%; justify-content: flex-end; }
  .tx-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-input { max-width: 100%; }
  .tx-row {
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }
  .tx-right {
    width: 100%;
    justify-content: space-between;
  }
  .tx-actions { opacity: 1; }
  .overview-kpis { grid-template-columns: 1fr; }
  .overview-grid { grid-template-columns: 1fr; }
  .donut-wrapper { align-items: flex-start; }
  .modal { width: calc(100vw - 20px); max-height: 88vh; }
}