:root {
  --navy: #183e46;
  --navy-dark: #102c32;
  --green: #00c37e;
  --blue: #2e5f8a;
  --teal-green: #50aa8d;
  --red: #c0392b;
  --amber: #c8960c;
  --bg: #f3f7f5;
  --card: #ffffff;
  --border: #e2e9e6;
  --text: #17333a;
  --muted: #647d7b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navy);
  color: #fff;
  padding: 18px 32px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.brand-mark {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--green);
}

.brand-sub {
  font-weight: 500;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
}

.clock {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.02em;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.user-name {
  font-weight: 600;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

.topbar-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--green);
  text-decoration: none;
}

.topbar-link:hover {
  text-decoration: underline;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px;
}

.group {
  margin-bottom: 36px;
}

.group-title {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 16px;
}

.group-sub {
  font-weight: 500;
  text-transform: none;
  letter-spacing: normal;
  color: var(--blue);
  margin-left: 8px;
  font-size: 13px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.cam-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.cam-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(4, 23, 28, 0.16);
}

.cam-video {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.cam-icon {
  width: 40px;
  height: 40px;
  color: rgba(255, 255, 255, 0.25);
}

.cam-stream {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cam-video .live-dot {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: rgba(0, 0, 0, 0.45);
  padding: 3px 8px 3px 6px;
  border-radius: 20px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.cam-video .live-dot.visible { opacity: 1; }

.cam-controls {
  position: absolute;
  bottom: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.cam-card:hover .cam-controls,
.cam-controls:has(.ctrl-btn:focus-visible) {
  opacity: 1;
}

.ctrl-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease;
}

.ctrl-btn:hover {
  background: var(--green);
  color: var(--navy-dark);
}

.ctrl-btn svg {
  width: 17px;
  height: 17px;
}

.ctrl-btn.btn-sound.is-unmuted {
  background: var(--green);
  color: var(--navy-dark);
}

.cam-video:fullscreen {
  aspect-ratio: auto;
}

.cam-video:fullscreen .cam-controls {
  opacity: 1;
  bottom: 24px;
  right: 24px;
}

.cam-video:fullscreen .ctrl-btn {
  width: 44px;
  height: 44px;
}

.cam-video:fullscreen .ctrl-btn svg {
  width: 22px;
  height: 22px;
}

.btn-collapse {
  display: none;
}

.cam-video:fullscreen .btn-collapse {
  display: flex;
}

.cam-video:fullscreen .btn-expand {
  display: none;
}

.live-dot::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  animation: pulse 1.4s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(192, 57, 43, 0.6); }
  70% { box-shadow: 0 0 0 6px rgba(192, 57, 43, 0); }
  100% { box-shadow: 0 0 0 0 rgba(192, 57, 43, 0); }
}

.cam-card[data-status="offline"] .cam-video,
.cam-card[data-status="planned"] .cam-video {
  background: linear-gradient(135deg, #3a4a4d, #22302f);
}

.cam-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
}

.cam-name {
  font-weight: 600;
  font-size: 15px;
}

.status-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 8px;
}

.status-online {
  background: rgba(0, 195, 126, 0.12);
  color: var(--green);
}

.status-offline {
  background: rgba(192, 57, 43, 0.1);
  color: var(--red);
}

.status-planned {
  background: rgba(200, 150, 12, 0.12);
  color: var(--amber);
}

/* -- Přihlašovací stránka (PIN) -- */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy), var(--navy-dark));
}

.login-card {
  background: var(--card);
  border-radius: 16px;
  padding: 40px 36px;
  width: 320px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.login-card .brand-mark {
  color: var(--green);
  font-size: 22px;
}

.login-card h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--muted);
  margin: 4px 0 28px;
}

.pin-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pin-input {
  font-size: 28px;
  letter-spacing: 0.5em;
  text-align: center;
  padding: 12px 0 12px 0.5em;
  border: 2px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.pin-input:focus {
  outline: none;
  border-color: var(--green);
}

.pin-submit {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 195, 126, 0.3);
}

.pin-submit:hover {
  filter: brightness(0.95);
}

.pin-error {
  color: var(--red);
  font-size: 13px;
  font-weight: 600;
  min-height: 18px;
}

.lockout-notice {
  color: var(--red);
  font-size: 13px;
  font-weight: 600;
  margin-top: 8px;
}

/* -- Přístupový log -- */

.log-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.log-table th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: var(--bg);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.log-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.log-table tr:last-child td {
  border-bottom: none;
}

.log-ok {
  color: var(--green);
  font-weight: 700;
}

.log-fail {
  color: var(--red);
  font-weight: 700;
}