:root {
  --bg: #101820;
  --karta-bg: #1a2530;
  --karta-border: #2a3948;
  --text: #eaf1f7;
  --text-slabsi: #8fa3b3;
  --zelena: #34c77b;
  --cervena: #e5484d;
  --modra: #3b82f6;
  --oranzova: #f5a623;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(160deg, #101820 0%, #17222c 100%);
  color: var(--text);
  min-height: 100vh;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
}

.top h1 {
  font-size: 1.4rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.emoji { font-size: 1.6rem; }

.stav-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  background: var(--karta-bg);
  border: 1px solid var(--karta-border);
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-slabsi);
}

.oddel { opacity: .5; }

.tecka {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-slabsi);
  flex-shrink: 0;
}
.tecka.online { background: var(--zelena); box-shadow: 0 0 8px var(--zelena); }
.tecka.offline { background: var(--cervena); box-shadow: 0 0 8px var(--cervena); }

.grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}

@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
}

.karta {
  background: var(--karta-bg);
  border: 1px solid var(--karta-border);
  border-radius: var(--radius);
  padding: 18px 20px 22px;
}

.karta h2 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  color: var(--text-slabsi);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.kamera-karta { grid-column: 1 / -1; order: 1; }
.ovladani-karta { order: 2; }
.historie-karta { order: 4; }
.nastaveni-karta { order: 3; }

@media (min-width: 801px) {
  .kamera-karta { order: 1; }
  .ovladani-karta { order: 2; }
  .nastaveni-karta { order: 3; }
  .historie-karta { order: 4; }
}

.kamera-box {
  aspect-ratio: 16 / 9;
  width: 100%;
  border-radius: 10px;
  border: 2px dashed var(--karta-border);
  background: #0c1319;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.kamera-box iframe { width: 100%; height: 100%; border: 0; }

.kamera-placeholder {
  text-align: center;
  color: var(--text-slabsi);
  padding: 0 16px;
}
.kamera-ikona { font-size: 2.4rem; display: block; margin-bottom: 6px; }

.btn-kamera-spustit {
  margin-top: 10px;
  background: var(--modra);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}
.btn-kamera-spustit:hover:not(:disabled) { filter: brightness(1.1); }
.btn-kamera-spustit:disabled { opacity: .6; cursor: wait; }

#kameraVideo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.kamera-ovladani {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}

.btn-kamera-stop {
  background: transparent;
  border: 1px solid var(--cervena);
  color: var(--cervena);
  padding: 7px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .85rem;
  cursor: pointer;
}
.btn-kamera-stop:hover { background: rgba(229,72,77,.12); }

.kamera-info {
  font-size: .8rem;
  color: var(--text-slabsi);
}

.hlavni-tlacitka {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 22px;
}

.btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 22px 10px;
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: transform .08s ease, filter .15s ease;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn .ikona { width: 34px; height: 34px; fill: #fff; }
.btn small { font-weight: 400; opacity: .85; font-size: .8rem; }

.btn-otevrit { background: linear-gradient(160deg, #34c77b, #1f9c5a); }
.btn-otevrit:hover:not(:disabled) { filter: brightness(1.08); }

.btn-zavrit { background: linear-gradient(160deg, #e5484d, #b8282d); }
.btn-zavrit:hover:not(:disabled) { filter: brightness(1.08); }

.jemne-doladeni { margin-bottom: 14px; }

.popisek {
  color: var(--text-slabsi);
  font-size: .85rem;
  margin: 0 0 8px;
}

.jemne-tlacitka {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.btn-jemny {
  padding: 12px 4px;
  border-radius: 10px;
  border: 1px solid var(--karta-border);
  background: #131d27;
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
}
.btn-jemny:hover:not(:disabled) { border-color: var(--modra); color: var(--modra); }
.btn-jemny:disabled { opacity: .4; cursor: not-allowed; }

.hlaska {
  min-height: 1.2em;
  font-size: .88rem;
  color: var(--oranzova);
  margin: 10px 0 0;
}

.tabulka-wrap { overflow-x: auto; overflow-y: hidden; }

.historie-tabulka {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
  white-space: nowrap;
}
.historie-tabulka th {
  text-align: left;
  color: var(--text-slabsi);
  font-weight: 600;
  padding: 6px 10px;
  border-bottom: 1px solid var(--karta-border);
}
.historie-tabulka td {
  padding: 7px 10px;
  border-bottom: 1px solid #202e3a;
}
.historie-tabulka .prazdne { color: var(--text-slabsi); text-align: center; }

.stav-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}
.stav-cekajici, .stav-odeslano { background: rgba(245,166,35,.15); color: var(--oranzova); }
.stav-dokonceno { background: rgba(52,199,123,.15); color: var(--zelena); }
.stav-chyba, .stav-zastaveno { background: rgba(229,72,77,.15); color: var(--cervena); }
.stav-zruseno { background: rgba(143,163,179,.15); color: var(--text-slabsi); }

#nastaveniForm {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
#nastaveniForm label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: .85rem;
  color: var(--text-slabsi);
}
#nastaveniForm input[type=number] {
  background: #0c1319;
  border: 1px solid var(--karta-border);
  color: var(--text);
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 1rem;
}
.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
}
.checkbox-label input { width: 16px; height: 16px; }

.btn-uloz {
  align-self: flex-start;
  background: var(--modra);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}
.btn-uloz:hover { filter: brightness(1.1); }

.ulozeno { font-size: .82rem; color: var(--zelena); }

.btn-stop {
  width: 100%;
  margin-bottom: 12px;
  background: linear-gradient(160deg, #e5484d, #9c1c20);
  border: none;
  color: #fff;
  padding: 14px;
  border-radius: 10px;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: .03em;
  cursor: pointer;
  box-shadow: 0 0 0 3px rgba(229,72,77,.25);
}
.btn-stop:hover { filter: brightness(1.08); }
.btn-stop:active { transform: scale(.98); }

/* ---- přihlášení ---- */
.login-karta {
  max-width: 360px;
  margin: 12vh auto 0;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-slabsi);
  font-size: 14px;
}
.login-form input[type=password] {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--karta-border);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
}
.login-chyba { margin: 0; color: var(--cervena); font-size: 14px; }
.odhlasit {
  color: var(--text-slabsi);
  font-size: 13px;
  margin-left: auto;
}