body.kalk main {
  max-width: 1120px !important;
  padding: 16px 16px 56px !important;
}
body.kalk { --kalk-err: var(--err); }
/* `--err` je světle růžová pro tmavé pozadí; explorer.css ji na světlém
   režimu nepřebarvuje, takže na bílé kartě by nešla přečíst. */
html[data-mode="light"] body.kalk { --kalk-err: #a4262c; }
.kalk :is(button, input, select) { font-family: inherit; }
.kalk [hidden] { display: none !important; }

.kalk-taby { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 14px; }
.kalk-taby button {
  min-height: 36px; padding: 0 14px;
  border: 1px solid transparent; border-radius: 6px;
  background: transparent; color: var(--tx-2);
  font-size: 13px; cursor: pointer;
}
.kalk-taby button:hover { background: var(--ctrl-hover); color: var(--tx-1); }
.kalk-taby button[aria-selected="true"] {
  background: var(--ctrl); border-color: var(--stroke-strong); color: var(--tx-1); font-weight: 600;
}

.kalk-sloupce { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 14px; align-items: start; }
.kalk-hlavni { display: grid; gap: 12px; min-width: 0; }
.kalk-bok { display: grid; gap: 10px; min-width: 0; }
/* Bez min-width:0 roztahne dlouhy vysledek v historii cely pravy sloupec. */
.kalk-hlavni > *, .kalk-bok > * { min-width: 0; }

.kalk-karta, .kalk-displej, .kalk-uloha {
  border: 1px solid var(--stroke-2); border-radius: var(--r-overlay);
  background: var(--sol-quart);
}
.kalk-displej { padding: 14px 16px 10px; }
body.kalk input.kalk-vstup {
  width: 100%; height: 46px !important;
  padding: 0 !important; margin-bottom: 4px;
  background: transparent !important; border: 0 !important;
  font-size: 19px !important;
  color: var(--tx-1) !important;
}
body.kalk input.kalk-vstup:hover, body.kalk input.kalk-vstup:focus { background: transparent !important; }
.kalk-vysledek-radek { display: flex; align-items: flex-start; gap: 10px; border-top: 1px solid var(--divider); padding-top: 10px; }
.kalk-vysledek {
  flex: 1; min-width: 0;
  font-size: clamp(24px, 4.2vw, 36px); line-height: 1.35; font-weight: 600;
  color: var(--acc); font-variant-numeric: tabular-nums;
  word-break: break-all; max-height: 32vh; overflow: auto;
}
.kalk-vysledek.kalk-stary { color: var(--tx-3); font-weight: 400; }
.kalk-kopie {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 34px; height: 34px; border: 1px solid var(--stroke); border-radius: var(--r-ctrl);
  background: var(--ctrl); color: var(--tx-2); cursor: pointer;
}
.kalk-kopie:hover { background: var(--ctrl-hover); color: var(--tx-1); }
.kalk-kopie svg { width: 17px; height: 17px; }
.kalk-chyba { min-height: 18px; margin: 6px 0 0; font-size: 12.5px; color: var(--kalk-err); }

.kalk-klavesnice { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 7px; }
.kl {
  min-height: 56px; padding: 0 4px;
  border: 1px solid var(--stroke); border-bottom-color: var(--ctrl-edge);
  border-radius: 7px; background: var(--sol-tert); color: var(--tx-1);
  font-size: 17px; cursor: pointer;
  transition: background var(--d-micro) var(--e-out), transform var(--d-fast) var(--e-apple);
}
.kl:hover { background: var(--ctrl-hover); }
.kl:active { background: var(--ctrl-press); transform: scale(.97); }
.kl sup { font-size: 11px; }
.kl-sedy { background: var(--ctrl); color: var(--tx-2); font-size: 15px; }
.kl-op { background: var(--ctrl); color: var(--acc); font-size: 19px; font-weight: 600; }
.kl-zrus { background: var(--ctrl); color: var(--kalk-err); font-size: 15px; font-weight: 600; }
.kl-rovna {
  background: var(--acc); border-color: transparent; border-bottom-color: rgba(0, 0, 0, .28);
  color: #000; font-size: 20px; font-weight: 700;
}
.kl-rovna:hover { background: var(--acc-hi); }
.kl-rovna:active { background: var(--acc-lo); }
html[data-mode="light"] .kl-rovna { color: #fff; }

.kalk-karta > summary, .kalk-karta-hlava {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  min-height: 38px; padding: 0 12px;
  font-size: 12.5px; font-weight: 600; color: var(--tx-2);
  cursor: pointer; list-style: none; user-select: none;
}
.kalk-karta-hlava { cursor: default; }
.kalk-karta > summary::-webkit-details-marker { display: none; }
.kalk-karta > summary::after {
  content: ''; width: 8px; height: 8px; flex: 0 0 auto;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--d-fast) var(--e-out);
}
.kalk-karta[open] > summary::after { transform: rotate(-135deg) translate(-2px, -2px); }
.kalk-karta > summary:hover { color: var(--tx-1); }
.kalk-karta-telo { padding: 2px 12px 12px; }
.kalk-pamet { padding-bottom: 12px; }
.kalk-pamet .kalk-fce { padding: 0 12px; }
.kalk-pamet-hodnota {
  font-weight: 400; color: var(--tx-3); font-size: 12px;
  max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.kalk-odkaz { border: 0; background: none; color: var(--acc); font-size: 12px; cursor: pointer; padding: 4px 0; }
.kalk-odkaz:hover { text-decoration: underline; }

.kalk-skupina { margin: 10px 0 6px; font-size: 11px; color: var(--tx-3); }
.kalk-fce { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 5px; }
.kalk-fce button {
  min-height: 34px; padding: 0 6px;
  border: 1px solid var(--stroke); border-radius: var(--r-ctrl);
  background: var(--ctrl); color: var(--tx-1);
  font-size: 12.5px; cursor: pointer; white-space: nowrap;
}
.kalk-fce button:hover { background: var(--ctrl-hover); }
.kalk-fce button:active { background: var(--ctrl-press); }
.kalk-presety { grid-template-columns: repeat(auto-fill, minmax(48px, 1fr)); margin-top: 8px; }

.kalk-prepinac { display: flex; gap: 4px; }
.kalk-prepinac button {
  flex: 1; min-height: 32px; padding: 0 10px;
  border: 1px solid var(--stroke); border-radius: var(--r-ctrl);
  background: var(--ctrl); color: var(--tx-2); font-size: 12.5px; cursor: pointer; white-space: nowrap;
}
.kalk-prepinac button:hover { background: var(--ctrl-hover); color: var(--tx-1); }
.kalk-prepinac button[aria-pressed="true"] {
  background: rgba(var(--acc-rgb), .16); border-color: rgba(var(--acc-rgb), .45);
  color: var(--tx-1); font-weight: 600;
}

.kalk-radek { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 12.5px; color: var(--tx-2); margin-top: 6px; }
.kalk-cislo { font-weight: 600; color: var(--tx-1); font-variant-numeric: tabular-nums; }
.kalk-volba { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 12.5px; color: var(--tx-2); cursor: pointer; }
.kalk-volba input { flex: 0 0 auto; }
#mista { width: 100%; margin-top: 4px; }

.kalk-historie { list-style: none; margin: 0; padding: 0 6px 8px; max-height: 210px; overflow: auto; }
.kalk-historie li {
  display: flex; align-items: baseline; gap: 10px; justify-content: space-between;
  padding: 7px 8px; border-radius: var(--r-ctrl); cursor: pointer; font-size: 12.5px;
}
.kalk-historie li:hover { background: var(--ctrl-hover); }
.kalk-historie .vyraz { flex: 1 1 auto; min-width: 0; color: var(--tx-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kalk-historie .vysl {
  flex: 0 1 auto; min-width: 0; max-width: 55%; font-weight: 600; color: var(--tx-1);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.kalk-napoveda p { margin: 0 0 8px; font-size: 12.5px; line-height: 1.6; color: var(--tx-2); }
.kalk-napoveda p:last-child { margin-bottom: 0; }
.kalk-napoveda b { color: var(--tx-1); font-weight: 600; font-family: ui-monospace, Consolas, monospace; }

.kalk-uloha { padding: 16px 18px; margin-bottom: 12px; }
.kalk-uloha-nadpis { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--tx-1); }
.kalk-uloha-radek { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.kalk-text { font-size: 14px; color: var(--tx-2); }
body.kalk input.kalk-pole {
  width: 120px; min-width: 0; flex: 0 1 140px;
  height: 38px !important; font-size: 15px !important;
}
body.kalk select.kalk-vyber { height: 38px !important; font-size: 14px !important; flex: 0 1 220px; }
.kalk-vystup {
  display: block; font-size: 19px; font-weight: 600; color: var(--acc);
  word-break: break-all; cursor: pointer;
}
.kalk-vystup-dlouhy { font-size: 14px; font-weight: 400; color: var(--tx-1); }
.kalk-uloha-vysledky { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 14px 0 6px; }
.kalk-pod { margin: 4px 0 0; font-size: 11.5px; line-height: 1.6; color: var(--tx-3); }
.kalk-druhy { flex-wrap: wrap; margin-bottom: 14px; }
.kalk-druhy button { flex: 0 1 auto; }

.kalk-prevody { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 2px; }
.kalk-prevody li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 9px 10px; border-radius: var(--r-ctrl); cursor: pointer;
  border-bottom: 1px solid var(--divider);
}
.kalk-prevody li:last-child { border-bottom: 0; }
.kalk-prevody li:hover { background: var(--ctrl-hover); }
.kalk-prevody .jmeno { font-size: 13px; color: var(--tx-2); }
.kalk-prevody .cislo {
  font-size: 14px; font-weight: 600; color: var(--tx-1);
  text-align: right; word-break: break-all;
}

.kalk-hlaska {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  z-index: 900; padding: 10px 18px;
  border: 1px solid var(--stroke-strong); border-radius: var(--r-overlay);
  background: var(--sol-quart); box-shadow: var(--el-flyout);
  font-size: 13px; color: var(--tx-1);
}

@media (max-width: 1000px) {
  .kalk-sloupce { grid-template-columns: minmax(0, 1fr); }
  .kalk-vysledek { max-height: 26vh; }
}
@media (pointer: coarse), (max-width: 640px) {
  .kl { min-height: 60px; }
  .kalk-fce button, .kalk-prepinac button { min-height: 40px; }
  .kalk-taby button { min-height: 42px; }
  body.kalk input.kalk-pole { height: 44px !important; font-size: 16px !important; }
  body.kalk select.kalk-vyber { height: 44px !important; font-size: 16px !important; }
  body.kalk input.kalk-vstup { font-size: 17px !important; }
}
@media (max-width: 480px) {
  body.kalk main { padding: 12px 12px 48px !important; }
  .kalk-uloha, .kalk-displej { padding: 14px 13px; }
  body.kalk input.kalk-pole { flex: 1 1 100px; }
}