:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --ink: #1b2430;
  --muted: #5d6b7a;
  --line: #d9e0e8;
  --accent: #1f4e79;
  --accent-ink: #ffffff;
  --accent-soft: #e6eef7;
  --ok: #1e7b45;
  --ok-soft: #e3f3e9;
  --warn: #8a5a00;
  --warn-soft: #fff4dc;
  --err: #a32020;
  --err-soft: #fde8e8;
  --radius: 8px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12161c; --panel: #1b212a; --ink: #e6ebf1; --muted: #9aa7b5; --line: #2f3946;
    --accent: #5b9bd5; --accent-ink: #0d1117; --accent-soft: #1f2d3d;
    --ok: #6fcf97; --ok-soft: #173325; --warn: #f2c063; --warn-soft: #3a2f16; --err: #f08080; --err-soft: #3d1c1c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12161c; --panel: #1b212a; --ink: #e6ebf1; --muted: #9aa7b5; --line: #2f3946;
  --accent: #5b9bd5; --accent-ink: #0d1117; --accent-soft: #1f2d3d;
  --ok: #6fcf97; --ok-soft: #173325; --warn: #f2c063; --warn-soft: #3a2f16; --err: #f08080; --err-soft: #3d1c1c;
  color-scheme: dark;
}
:root[data-theme="light"] { color-scheme: light; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.5 "Segoe UI", system-ui, -apple-system, Arial, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
#app { flex: 1; }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 16px; margin: 20px 0 8px; }
p { margin: 8px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
code { font-family: Consolas, "Cascadia Mono", monospace; }

button { font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.danger { color: var(--err); }
button.small { padding: 4px 10px; font-size: 13px; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; text-decoration: underline; }
button:disabled { opacity: .6; cursor: default; }
input, select, textarea { font: inherit; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--ink); width: 100%; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label.inline { flex-direction: row; align-items: center; gap: 8px; color: var(--ink); font-size: 14px; }
label.inline input { width: auto; }
fieldset { border: 0; padding: 0; margin: 0; display: contents; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.card.narrow { max-width: 440px; margin: 10vh auto 0; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.brand h1 { margin: 0; }
.brand p { margin: 0; }
.logo { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: 22px; }
.brand.small { margin: 0; gap: 8px; }
.brand.small .logo { width: 28px; height: 28px; font-size: 16px; border-radius: 6px; }
.stack { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.row > label { flex: 0 1 200px; }
.row > label.grow { flex: 1 1 260px; }
.row > input { flex: 1 1 220px; width: auto; }
.row > select { flex: 0 0 140px; width: auto; }

.top { display: flex; align-items: center; gap: 14px; padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.top .switch { flex-direction: row; align-items: center; gap: 8px; }
.top .switch select { min-width: 240px; }
.top .who { margin-left: auto; font-size: 14px; }
.top .theme-toggle { padding: 6px 10px; font-size: 16px; line-height: 1; }
.tag { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 100px); }
.side { display: flex; flex-direction: column; padding: 16px 10px; gap: 2px; border-right: 1px solid var(--line); }
.side button { border: 0; background: none; text-align: left; padding: 8px 12px; border-radius: 6px; }
.side .nav-group { margin-top: 10px; font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--muted, #5d6b7a); display: flex; justify-content: space-between; }
.side button.sub { padding-left: 24px; font-size: 14px; }
.side button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
main { padding: 24px 32px; max-width: 1180px; min-width: 0; overflow-x: auto; }

.form2 { display: flex; flex-direction: column; gap: 12px; max-width: 720px; }
.form2 > button { align-self: flex-start; }
.narrow-form { max-width: 380px; }
.acc .iban { flex: 1 1 200px; padding-bottom: 8px; }

table.grid { border-collapse: collapse; width: 100%; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.grid th, .grid td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.grid th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: var(--bg); }
.grid td select { width: auto; }
.pill { display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 10px; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }

.box { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin: 14px 0; }
.box.warn { border-color: var(--warn); background: var(--warn-soft); }
.box h2 { margin-top: 0; }
.note { background: var(--accent-soft); padding: 10px 14px; border-radius: 6px; }
.warn { color: var(--warn); }
.err { color: var(--err); }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; }
.flash.ok { background: var(--ok-soft); color: var(--ok); }
.flash.info { background: var(--accent-soft); color: var(--accent); }
.flash.err { background: var(--err-soft); color: var(--err); }
.rk { background: var(--bg); border: 1px dashed var(--accent); border-radius: 6px; padding: 14px; margin: 10px 0; word-break: break-all; }
.rk code { font-size: 17px; letter-spacing: .04em; }

.toast { position: fixed; right: 20px; bottom: 20px; padding: 10px 16px; border-radius: 6px; background: var(--ok-soft); color: var(--ok); border: 1px solid var(--ok); z-index: 10; max-width: 420px; }
.toast.err { background: var(--err-soft); color: var(--err); border-color: var(--err); }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 10px; }
.new-version { background: var(--accent-soft); color: var(--accent); text-align: center; padding: 6px; font-size: 14px; }
.new-version button { margin-left: 10px; }
.demo-banner { display: none; background: var(--warn-soft); color: var(--warn); text-align: center; font-size: 13px; padding: 4px; font-weight: 600; }
body.demo .demo-banner { display: block; }

@media (max-width: 900px) {
  /* hlavička: logo + subjekt + tlačítka na jednom řádku, uživatel pod tím */
  .top { padding: 8px 12px; gap: 6px 8px; }
  .top .brand strong { display: none; }
  .top .switch { flex: 1 1 160px; font-size: 0; gap: 0; }
  .top .switch select { min-width: 0; width: 100%; font-size: 15px; }
  .top .who { order: 5; flex: 1 1 100%; margin-left: 0; font-size: 12px; color: var(--muted); }
  .top > button { padding: 6px 10px; font-size: 14px; }
  /* menu: vodorovný posuvný pruh pod hlavičkou */
  .layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; align-items: start; min-height: 0; }
  .side { flex-direction: row; align-items: center; overflow-x: auto; gap: 4px; border-right: 0; border-bottom: 1px solid var(--line); padding: 6px 8px; position: sticky; top: 0; z-index: 5; background: var(--panel); scrollbar-width: thin; }
  .side button { white-space: nowrap; padding: 6px 12px; border-radius: 16px; flex: 0 0 auto; }
  .side .nav-group { margin: 0 0 0 6px; gap: 6px; }
  .side button.sub { padding-left: 12px; }
  main { padding: 16px 12px; }
  .card.narrow { margin: 16px; }
  .grid { font-size: 13px; }
  .grid th, .grid td { padding: 7px 8px; }
}

/* etapa 1 */
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.head-row h1 { margin: 0; }
.filters { margin: 8px 0 14px; align-items: center; }
.filters select { flex: 0 0 auto; width: auto; }
.grid tr.click { cursor: pointer; }
.grid tr.click:hover td { background: var(--accent-soft); }
.grid tr.dim td, .pill.dim { opacity: .6; }
.grid .num, .grid td.num, input.num { text-align: right; }
.pill.err { background: var(--err-soft); color: var(--err); }
.pill.info { background: var(--accent-soft); color: var(--accent); }
.pill { background: var(--bg); }
.sums { display: flex; gap: 24px; margin: 0 0 14px; flex-wrap: wrap; }
.sums div { display: flex; flex-direction: column; }
.sums strong { font-size: 18px; }
.form2.wide { max-width: 100%; }
.items td { padding: 4px 6px; }
.items input { padding: 5px 7px; }
.items td:nth-child(1) { width: 44%; }
.items td:nth-child(2), .items td:nth-child(5) { width: 9%; }
.items td:nth-child(3) { width: 7%; }
.items td:nth-child(4) { width: 13%; }
.row.space { justify-content: space-between; align-items: center; }
.total { font-size: 17px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.cards .box { margin: 0; }
.bigval { font-size: 22px; font-weight: 700; margin: 4px 0; }
.hidden { display: none !important; }
.hist { padding-left: 18px; color: var(--ink); }
.hist li { margin: 3px 0; }
.grid td.num, .grid th.num { white-space: nowrap; }
option.shoda { font-weight: 600; }
@media (max-width: 560px) {
  .top .switch { order: 4; flex: 1 1 100%; }
  #btn-out { margin-left: auto; }
}

.grid th.center, .grid td.center { text-align: center; }
.chk-vychozi { width: 18px; height: 18px; cursor: pointer; }
.grid.kv th { width: 170px; text-transform: none; letter-spacing: 0; font-size: 13px; }