:root {
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: #1e293b;
  border-radius: 10px;
  padding: 10px;
}

.field-group,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.audio-controls input[type="range"] {
  width: 140px;
}

input,
button {
  border-radius: 8px;
  border: 1px solid #334155;
  background: #0b1220;
  color: #e2e8f0;
  padding: 10px;
}

button {
  cursor: pointer;
  background: #1d4ed8;
  border-color: #1e40af;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.content {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 12px;
  min-height: 0;
  flex: 1;
}

.videos-panel,
.participants-panel,
.chat-panel {
  background: #1e293b;
  border-radius: 10px;
  padding: 10px;
}

.videos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
}

.video-card,
.user-card {
  background: #0b1220;
  border: 1px solid #334155;
  border-radius: 8px;
  overflow: hidden;
}

.video-card header,
.user-card header {
  font-size: 13px;
  padding: 6px 8px;
}

.card-media {
  width: 100%;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #020617;
}

.profile-fallback-image {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  display: block;
}

.media-placeholder {
  font-size: 14px;
  color: #94a3b8;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px;
  font-size: 12px;
  border-top: 1px solid #334155;
}

.card-admin-actions {
  display: flex;
  gap: 6px;
}

.card-admin-actions button {
  padding: 6px 8px;
  font-size: 12px;
}

.card-user-actions {
  display: flex;
  gap: 6px;
}

.card-user-actions button {
  padding: 6px 8px;
  font-size: 12px;
}

video {
  width: 100%;
  display: block;
  background: #020617;
  min-height: 160px;
}

.pagination {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.sidebar {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
}

#participants {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.participant-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid #334155;
  border-radius: 8px;
}

.participant-actions {
  display: flex;
  gap: 6px;
}

.participant-actions button {
  padding: 6px 8px;
  font-size: 12px;
}

.messages {
  height: 280px;
  overflow-y: auto;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 8px;
  background: #0b1220;
}

.message {
  margin-bottom: 6px;
  font-size: 14px;
  word-break: break-word;
}

.message .icon-action-btn {
  padding: 4px 6px;
  min-width: 30px;
  font-size: 14px;
  line-height: 1;
}

.message a {
  color: #93c5fd;
}

.shared-preview {
  display: block;
  max-width: 220px;
  max-height: 220px;
  width: auto;
  height: auto;
  border: 1px solid #334155;
  border-radius: 8px;
  margin: 6px 0;
}

.file-form {
  margin-top: 8px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.status {
  margin: 0;
  font-size: 14px;
  color: #93c5fd;
}

@media (max-width: 980px) {
  .content {
    grid-template-columns: 1fr;
  }
}