/* --- Base styles for the application appearance --- */
:root {
  --bg-color: #1e1e1e;
  --bg-color-medium: #2d2d30;
  --bg-color-light: #3c3c41;
  --border-color: #4a4a4e;
  --text-color: #dcdcdc;
  --text-color-secondary: #9e9e9e;
  --accent-color: #7a73e2;
  --accent-color-hover: #8a84e8;
  --highlight-border-color: #f9a857;
  --highlight-bg-color: rgba(249, 168, 87, 0.08);
  --error-color: #f47174;
  --warning-color: #f9a857;
  --success-color: #67d980;
  --icon-color: #a0a0a0;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --plyr-color-main: var(--accent-color);
  --plyr-control-radius: 6px;
  --plyr-control-spacing: 18px;
}
body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 40px 20px;
  line-height: 1.6;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}
.app-container {
  background-color: var(--bg-color-medium);
  padding: 30px 40px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  width: 90%;
  max-width: 850px;
  text-align: center;
}
h1 {
  color: var(--text-color);
  font-size: 2.2em;
  margin-top: 0;
  margin-bottom: 5px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.subtitle {
  color: var(--text-color-secondary);
  font-size: 1.1em;
  margin-top: 0;
  margin-bottom: 35px;
  font-weight: 300;
}
.tab-nav {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
  gap: 15px;
}
.tab-button {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color-secondary);
  padding: 8px 18px;
  font-size: 1em;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}
.tab-button:hover {
  color: var(--text-color);
  border-color: var(--text-color-secondary);
}
.tab-button.active {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
  font-weight: 600;
}
.tab-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: var(--border-color);
  color: var(--text-color-secondary);
  background-color: transparent;
}
.tab-button:disabled:hover {
  border-color: var(--border-color); /* Prevent hover change */
  color: var(--text-color-secondary);
}

.tab-content-area {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-top: -10px;
  position: relative;
  z-index: 1;
  background-color: var(--bg-color-medium);
}
.tab-content {
  display: none;
  padding: 25px;
  text-align: left;
}
.tab-content.active {
  display: block;
}
.tab-description {
  color: var(--text-color-secondary);
  font-size: 0.95em;
  margin-bottom: 25px;
  border-left: 3px solid var(--accent-color);
  padding: 8px 12px;
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: 0 4px 4px 0;
}
label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-color);
  text-align: left;
  padding-left: 5px;
}
input[type="text"] {
  width: calc(100% - 24px);
  padding: 12px;
  background-color: var(--bg-color-light);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  border-radius: 6px;
  font-size: 1em;
  margin-bottom: 20px;
}
input[type="text"]:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(122, 115, 226, 0.3);
}
button.primary-button {
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  padding: 12px 25px;
  font-size: 1.05em;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: inline-block;
  width: auto;
  font-weight: 500;
  margin: 5px;
}
button.primary-button:hover {
  background-color: var(--accent-color-hover);
}
button.primary-button:disabled {
  background-color: var(--bg-color-lighter);
  background-color: var(--bg-color-light);
  cursor: not-allowed;
  opacity: 0.7;
}
#streamerInfoContent,
#viewerInfoContent {
  text-align: center;
}
#streamerCodeDisplay,
#viewerCountDisplay {
  font-size: 1.1em;
  margin: 20px 0;
  color: var(--text-color);
}
#streamerCodeDisplay strong,
#viewerCountDisplay strong {
  color: var(--accent-color);
  font-weight: 600;
  background-color: rgba(0, 0, 0, 0.2);
  padding: 4px 10px;
  border-radius: 4px;
  user-select: all;
  border: 1px solid var(--border-color);
}
video {
  display: block;
  max-width: 100%;
  background-color: #000;
}
.plyr {
  border-radius: 6px;
  margin: 20px auto;
  max-width: 100%;
  border: 1px solid var(--border-color);
  aspect-ratio: 16 / 9;
  height: auto !important;
}
.plyr video {
  object-fit: contain;
}
.plyr__volume input[type="range"]::-webkit-slider-thumb {
  height: 15px;
  width: 15px;
}
.plyr__volume input[type="range"]::-moz-range-thumb {
  height: 15px;
  width: 15px;
}
.plyr__volume input[type="range"]::-ms-thumb {
  height: 15px;
  width: 15px;
}
/* --- Hide Plyr play button when viewer is not connected --- */
#remoteVideoContainer.plyr-inactive .plyr__control[data-plyr="play"],
#remoteVideoContainer.plyr-inactive .plyr__control--overlaid {
  display: none !important;
  pointer-events: none;
  opacity: 0;
}
#statusArea {
  margin-top: 30px;
  padding: 12px;
  min-height: 1.5em;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 6px;
  text-align: center;
  border: 1px solid var(--border-color);
}
#status {
  font-weight: 500;
}
#status.success {
  color: var(--success-color);
}
#status.warning {
  color: var(--warning-color);
}
#error {
  color: var(--error-color);
  font-weight: 600;
  margin-top: 5px;
}
/* --- Styles for the informational sections --- */
.app-description {
  margin-top: 40px;
  padding-top: 25px;
  border-top: 1px solid var(--border-color);
  text-align: left;
  color: var(--text-color-secondary);
  font-size: 0.95em;
}
.app-description h2 {
  color: var(--text-color);
  font-size: 1.4em;
  margin-bottom: 15px;
  padding-bottom: 8px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}
.app-description h3 {
  color: var(--text-color);
  font-size: 1.15em;
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: 500;
}
.app-description strong {
  color: var(--text-color);
  font-weight: 600;
}
.app-description a {
  color: var(--accent-color);
  text-decoration: none;
}
.app-description a:hover {
  text-decoration: underline;
}
.app-description ul {
  padding-left: 25px;
  list-style: disc;
}
.app-description li {
  margin-bottom: 8px;
}
.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: 20px;
  margin: 25px 0;
  padding: 15px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}
.feature-item {
  flex: 1;
  min-width: 150px;
  max-width: 30%;
}
.feature-item svg {
  width: 40px;
  height: 40px;
  fill: var(--icon-color);
  margin-bottom: 10px;
}
.feature-item h4 {
  margin: 5px 0;
  font-size: 1.05em;
  color: var(--text-color);
  font-weight: 500;
}
.feature-item p {
  font-size: 0.9em;
  color: var(--text-color-secondary);
  margin: 0;
}
.highlight-box {
  background-color: var(--highlight-bg-color);
  border-left: 4px solid var(--highlight-border-color);
  padding: 10px 15px;
  margin: 15px 0;
  border-radius: 0 4px 4px 0;
  color: var(--text-color);
}
.highlight-box strong {
  color: var(--highlight-border-color);
}
.footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.85em;
  color: var(--text-color-secondary);
}