:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-2: #f9fafb;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #1d4ed8;
  --accent-soft: #dbeafe;
  --expense: #b91c1c;
  --income: #15803d;
  --blank: #2563eb;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --ok-soft: #dcfce7;
  --bad-soft: #fee2e2;
  --nav-bg: #111827;
  --nav-text: #d1d5db;
  --nav-active: #ffffff;
  --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 1px 3px rgba(0, 0, 0, .08);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115; --panel: #171a21; --panel-2: #1d2129; --text: #e5e7eb; --muted: #9ca3af;
    --border: #2a2f3a; --accent: #60a5fa; --accent-soft: #1e293b; --expense: #f87171; --income: #4ade80;
    --blank: #60a5fa; --warn: #fbbf24; --warn-soft: #3a2f12; --ok-soft: #12321f; --bad-soft: #3b1515;
    --nav-bg: #0a0c10; --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1115; --panel: #171a21; --panel-2: #1d2129; --text: #e5e7eb; --muted: #9ca3af;
  --border: #2a2f3a; --accent: #60a5fa; --accent-soft: #1e293b; --expense: #f87171; --income: #4ade80;
  --blank: #60a5fa; --warn: #fbbf24; --warn-soft: #3a2f12; --ok-soft: #12321f; --bad-soft: #3b1515;
  --nav-bg: #0a0c10; --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.45 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 10px; }
h3 { font-size: 14px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ---- layout */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--nav-bg); color: var(--nav-text); padding: 16px 10px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand { color: #fff; font-weight: 700; font-size: 17px; padding: 4px 10px 14px; letter-spacing: .2px; }
.brand span { color: #93c5fd; }
.nav a {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px;
  color: var(--nav-text); font-size: 14px;
}
.nav a:hover { background: rgba(255, 255, 255, .06); text-decoration: none; }
.nav a.active { background: rgba(255, 255, 255, .12); color: var(--nav-active); font-weight: 600; }
.nav .sep { height: 1px; background: rgba(255, 255, 255, .1); margin: 10px 6px; }
.nav-user { margin-top: 18px; padding: 0 10px; font-size: 12px; color: #9ca3af; word-break: break-all; }
.nav-user a { color: #93c5fd; }

.main { min-width: 0; padding: 20px 24px 60px; }
.topbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.topbar .grow { flex: 1; }
.btn.menu-btn { display: none; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 40; left: 0; top: 0; width: 240px; transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: none; box-shadow: 0 0 40px rgba(0, 0, 0, .4); }
  .btn.menu-btn { display: inline-flex; }
  .main { padding: 14px 16px 60px; }
}

/* ---- panels / grid */
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1100px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) { .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; } }
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; min-width: 0;
}
.panel-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.panel-head h2 { margin: 0; flex: 1; }
.kpi .label { font-size: 12px; font-weight: 600; letter-spacing: .4px; text-transform: uppercase; color: var(--muted); }
.kpi .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.kpi .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.section { margin-top: 16px; }

/* ---- tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { font-size: 12px; font-weight: 600; color: var(--muted); background: var(--panel-2); position: sticky; top: 0; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
td.num, th.num { text-align: right; }
td.wrap { white-space: normal; min-width: 180px; }
tr.total td { font-weight: 700; border-top: 2px solid var(--border); background: var(--panel-2); }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover td { background: var(--accent-soft); }
.matrix td, .matrix th { padding: 5px 7px; font-size: 13px; }
.matrix td:first-child, .matrix th:first-child { position: sticky; left: 0; background: var(--panel); z-index: 1; }
.matrix tr.total td:first-child { background: var(--panel-2); }

.t-expense { color: var(--expense); }
.t-income { color: var(--income); }
.t-blank { color: var(--blank); }
.neg { color: var(--expense); }
.pos { color: var(--income); }
.zero { color: var(--muted); }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ok { background: var(--ok-soft); color: var(--income); }
.badge.bad { background: var(--bad-soft); color: var(--expense); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.info { background: var(--accent-soft); color: var(--accent); }
.dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; vertical-align: middle; }
.dot.ok { background: #16a34a; } .dot.bad { background: #dc2626; }

.bar { height: 8px; background: var(--panel-2); border-radius: 99px; overflow: hidden; min-width: 80px; border: 1px solid var(--border); }
.bar > i { display: block; height: 100%; background: var(--income); }
.bar.warn > i { background: #d97706; } .bar.bad > i { background: #dc2626; }

/* ---- forms */
input, select, textarea, button { font: inherit; color: inherit; }
input[type=text], input[type=number], input[type=date], input[type=search], select, textarea {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
textarea { width: 100%; min-height: 90px; resize: vertical; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel); border-radius: 8px; padding: 7px 12px; font-weight: 500;
}
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--expense); border-color: var(--expense); background: transparent; }
.btn.small { padding: 3px 8px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: default; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.toolbar .grow { flex: 1; }
.toolbar input[type=search] { min-width: 220px; flex: 1; max-width: 380px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field > span { font-size: 12px; font-weight: 600; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }
.radios { display: flex; gap: 14px; flex-wrap: wrap; padding: 6px 0; }
.radios label { display: inline-flex; gap: 6px; align-items: center; cursor: pointer; }
.hint { font-size: 12px; color: var(--muted); }
.hint.warn { color: var(--warn); }
.msg { padding: 8px 10px; border-radius: 8px; margin-top: 10px; font-size: 13px; }
.msg.err { background: var(--bad-soft); color: var(--expense); }
.msg.ok { background: var(--ok-soft); color: var(--income); }
.msg:empty { display: none; }

/* ---- modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, .45); display: flex; align-items: flex-start;
  justify-content: center; padding: 40px 16px; z-index: 60; overflow-y: auto;
}
.modal { background: var(--panel); border-radius: 12px; width: 100%; max-width: 640px; box-shadow: 0 20px 60px rgba(0, 0, 0, .3); }
.modal header { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.modal header h2 { margin: 0; flex: 1; }
.modal .body { padding: 16px 18px; }
.modal footer { display: flex; gap: 8px; justify-content: flex-end; padding: 12px 18px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.modal footer .left { margin-right: auto; }
.x { background: none; border: 0; font-size: 22px; line-height: 1; cursor: pointer; color: var(--muted); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px; flex-wrap: wrap; }
.tabs a { padding: 8px 12px; border-bottom: 2px solid transparent; color: var(--muted); font-weight: 500; }
.tabs a.active { color: var(--text); border-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }

.chart-box { position: relative; height: 300px; }
.chart-box.tall { height: 380px; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #111827; color: #fff;
  padding: 10px 16px; border-radius: 8px; z-index: 80; font-size: 13px; box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
}
.toast.err { background: #991b1b; }
.loading { padding: 40px; text-align: center; color: var(--muted); }
.empty { padding: 20px; text-align: center; color: var(--muted); }
.note-body { white-space: pre-wrap; }
.inline-edit { width: 110px; text-align: right; }
.nowrap { white-space: nowrap; }