@import url('https://fonts.googleapis.com/css2?family=Segoe+UI+Variable:wght@300;400;500;600;700&display=swap');

:root {
  --window-bg: #f9f9f9;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.12);
  --text-primary: #1a1a1a;
  --text-secondary: #5c5c5c;
  --text-disabled: rgba(0, 0, 0, 0.4);
  --accent-color: #0067C0;
  --accent-hover: #005A9E;
  --success-color: #107C10;
  --danger-color: #E81123;
  --surface-bg: rgba(255, 255, 255, 0.6);
  --surface-hover: rgba(255, 255, 255, 0.9);
}

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

body {
  font-family: 'Segoe UI Variable', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--window-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

.titlebar {
  height: 32px;
  background: var(--window-bg);
  display: flex;
  align-items: center;
  position: relative;
  -webkit-app-region: drag;
  border-bottom: 1px solid var(--border-color);
}

.titlebar-drag-region {
  position: absolute;
  top: 0;
  left: 0;
  right: 138px;
  height: 32px;
  -webkit-app-region: drag;
}

.titlebar-title {
  flex: 1;
  padding-left: 16px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-primary);
  user-select: none;
  pointer-events: none;
  opacity: 0.9;
}

.window-controls {
  display: flex;
  height: 32px;
  position: absolute;
  right: 0;
  top: 0;
}

.window-control {
  width: 46px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: background-color 0.1s ease;
  -webkit-app-region: no-drag;
  opacity: 0.9;
}

.window-control:hover {
  background-color: rgba(0, 0, 0, 0.04);
  opacity: 1;
}

.window-control:active {
  background-color: rgba(0, 0, 0, 0.08);
}

.window-control.close:hover {
  background-color: var(--danger-color);
  color: white;
}

.window-control svg {
  pointer-events: none;
}

.container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
}

.card {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border-color);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
  max-width: 400px;
}

.card-body {
  padding: 20px;
}

.status-section {
  text-align: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.connected {
  background-color: var(--success-color);
  box-shadow: 0 0 0 2px rgba(16, 124, 16, 0.2);
}

.status-dot.disconnected {
  background-color: var(--danger-color);
  box-shadow: 0 0 0 2px rgba(232, 17, 35, 0.2);
}

.status-dot.connecting {
  background-color: #FF8C00;
  box-shadow: 0 0 0 2px rgba(255, 140, 0, 0.2);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

#statusText {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.control-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}

.control-buttons button {
  flex: 1;
  font-weight: 400;
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: all 0.1s ease;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.1px;
  background: var(--surface-bg);
  color: var(--text-primary);
}

.control-buttons button:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.control-buttons button:active:not(:disabled) {
  background: rgba(0, 0, 0, 0.04);
  transform: scale(0.98);
}

.control-buttons button:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface-bg);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.btn-success {
  background: var(--success-color);
  color: white;
  border-color: var(--success-color);
}

.btn-success:hover:not(:disabled) {
  background: #0B5A0B;
  border-color: #0B5A0B;
}

.result-section {
  margin-top: 16px;
}

.result-section h4 {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-box {
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  min-height: 60px;
  border: 1px solid var(--border-color);
}

.placeholder-text {
  color: var(--text-secondary);
  margin: 0;
  text-align: center;
  font-size: 13px;
  line-height: 1.5;
}

.result-content {
  word-break: break-all;
  font-family: 'Segoe UI Variable', 'Segoe UI', 'Consolas', monospace;
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 400;
  text-align: center;
  padding: 4px;
}

.error-message {
  color: var(--danger-color);
  font-weight: 500;
  text-align: center;
  font-size: 13px;
}