* {
  margin: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Roboto, sans-serif;
}

body {
  background: #0a0c10;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}

.chat-container {
  max-width: 800px;
  width: 100%;
  background: #12161c;
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.7);
  border: 1px solid #2a3340;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}

h1 {
  color: #ff9f7c;
  font-weight: 600;
  font-size: 1.9rem;
}

.subtitle {
  color: #8b949e;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.status-badge {
  background: #1e2733;
  padding: 6px 14px;
  border-radius: 40px;
  font-size: 0.8rem;
  margin-right: 10px;
  border: 1px solid #2a3340;
}

.chat-box {
  height: 380px;
  overflow-y: auto;
  background: #0d1117;
  border-radius: 20px;
  padding: 18px;
  border: 1px solid #2a3340;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msg {
  background: #1e2733;
  padding: 12px 16px;
  border-radius: 20px;
  max-width: 85%;
  align-self: flex-start;
  word-wrap: break-word;
  animation: fade 0.2s;
  border-left: 5px solid;
  color: #ffffff;
}

.msg b {
  font-weight: 700;
  margin-right: 8px;
}

.msg .time {
  font-size: 0.7rem;
  opacity: 0.6;
  margin-left: 8px;
  float: right;
  color: #c9d1d9;
}

.msg-system {
  text-align: center;
  color: #8b949e;
  font-style: italic;
  padding: 10px;
  background: #1a2129;
  border-radius: 40px;
  align-self: center;
  font-size: 0.9rem;
}

.input-area {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

input[type="text"] {
  flex: 1;
  padding: 16px 18px;
  border-radius: 60px;
  border: 1px solid #2a3340;
  background: #0d1117;
  color: #ffffff;
  font-size: 1rem;
  outline: none;
  transition: 0.2s;
}

input:focus {
  border-color: #ff7b72;
}

button {
  background: #21262d;
  color: #e6edf3;
  border: 1px solid #3a4756;
  border-radius: 60px;
  padding: 0 20px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s;
}

.btn-primary {
  background: #ff7b72;
  color: #0d1117;
  border: none;
}

.btn-primary:hover {
  background: #ff9f7c;
}

.btn-outline {
  background: transparent;
}

button:hover {
  background: #30363d;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Painel de criação */
.criar-sala-panel {
  background: #0d1117;
  border-radius: 18px;
  border: 1px solid #2a3340;
  padding: 18px;
  margin-bottom: 16px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  color: #ff7b72;
  font-weight: bold;
}

.close-btn {
  background: none;
  border: none;
  color: #8b949e;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0 8px;
}

.criar-sala-panel label {
  display: block;
  margin-bottom: 8px;
  color: #c9d1d9;
}

.criar-sala-panel input {
  width: 100%;
  padding: 14px 18px;
  border-radius: 60px;
  border: 1px solid #2a3340;
  background: #161b22;
  color: #ffffff;
  font-size: 1rem;
  outline: none;
  margin-bottom: 16px;
}

.panel-actions {
  display: flex;
  gap: 10px;
}

.resultado-criacao {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #2a3340;
}

.resultado-criacao p {
  color: #c9d1d9;
  margin-bottom: 10px;
}

.link-box {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  background: #161b22;
  padding: 8px 12px;
  border-radius: 40px;
  border: 1px solid #2a3340;
}

.link-box span {
  flex: 1;
  color: #ff9f7c;
  font-weight: bold;
  word-break: break-all;
  padding: 8px 0;
}

.small {
  font-size: 0.8rem;
  color: #8b949e;
  margin-top: 12px;
  text-align: center;
}

.hidden {
  display: none !important;
}

.debug-panel {
  background: #0d1117;
  border-radius: 18px;
  border: 1px solid #2a3340;
  padding: 12px 14px;
  margin-top: 16px;
}

.debug-header {
  color: #ff7b72;
  font-weight: bold;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.debug-log {
  color: #9cdcfe;
  font-family: monospace;
  font-size: 0.8rem;
  max-height: 120px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .chat-container { padding: 16px; }
  .chat-box { height: 350px; }
}