/* styles.css */
:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #252525;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-blue: #3b82f6;
  --border-color: #333;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 9999px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  gap: 1rem;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.header-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-pill);
  background-color: var(--accent-red);
  transition: background-color 0.2s ease;
}

.status-indicator.online {
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.status-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

/* Chat Area */
.chat-area {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.thread-controls {
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  display: flex;
  gap: 0.5rem;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.thread-controls input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.thread-controls input::placeholder {
  color: var(--text-secondary);
}

.thread-controls button {
  padding: 0.5rem 1rem;
  background: var(--accent-blue);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: opacity 0.2s;
}

.thread-controls button:hover {
  opacity: 0.9;
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  scroll-behavior: smooth;
}

.message-thread {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  margin-right: 0.5rem;
  color: var(--accent-blue);
}
.message {
  max-width: 75%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  line-height: 1.4;
  position: relative;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.message.received {
  align-self: flex-start;
  background: var(--bg-tertiary);
  border-bottom-left-radius: 4px;
}

.message.sent {
  align-self: flex-end;
  background: var(--accent-blue);
  border-bottom-right-radius: 4px;
}

.message.system {
  align-self: center;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-style: italic;
  max-width: 100%;
  text-align: center;
}

.message-time {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  opacity: 0.8;
}

.message.sent .message-time {
  text-align: right;
}

/* Input Area */
.input-area {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.input-area input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.input-area input:focus {
  border-color: var(--accent-blue);
}

.input-area input::placeholder {
  color: var(--text-secondary);
}

.input-area button {
  padding: 0.75rem 1.5rem;
  background: var(--accent-green);
  color: white;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 500;
  transition: opacity 0.2s, transform 0.1s;
}

.input-area button:hover {
  opacity: 0.9;
}

.input-area button:active {
  transform: scale(0.98);
}

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

/* Connection Buttons */
.connection-buttons {
  display: flex;
  gap: 0.5rem;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: opacity 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-connect {
  background: var(--accent-green);
  color: white;
}

.btn-disconnect {
  background: var(--accent-red);
  color: white;
}

.btn:hover {
  opacity: 0.9;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Scrollbar */
.messages-container::-webkit-scrollbar {
  width: 6px;
}

.messages-container::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

.messages-container::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Responsive */
@media (max-width: 768px) {
  .app-container {
    padding: 0.5rem;
  }
  
  .message {
    max-width: 85%;
  }
  
  .header-title span {
    display: none;
  }
}


.status-indicator.retrying {
    animation: pulse 1.5s ease-in-out infinite;
    background: #f59e0b !important; /* Amber for retry state */
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Optional: dim inputs during reconnect */
#ws-input:disabled, #ws-send:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}