#root {
  margin: 0 auto;
}

:root {
  /* 深色主题（默认） */
  --bg: #0f1117;
  --surface: #161b22;
  --card: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
  --purple: #8957e5;

  --phase-starting: var(--accent);
  --phase-diverging: var(--yellow);
  --phase-closing: var(--green);
  --phase-done: var(--purple);

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  /* font-size: 14px; */
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.logo {
  height: 6em;
  padding: 1.5em;
  will-change: filter;
  transition: filter 300ms;
}

.logo:hover {
  filter: drop-shadow(0 0 2em #646cffaa);
}

.logo.react:hover {
  filter: drop-shadow(0 0 2em #61dafbaa);
}

@keyframes logo-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: no-preference) {
  a:nth-of-type(2) .logo {
    animation: logo-spin infinite 20s linear;
  }
}

.card {
  padding: 2em;
}

.read-the-docs {
  color: #888;
}


/* 多智能体检索 */
/* 浅色主题 */
[data-theme="light"] {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --card: #f0f2f5;
  --border: #e2e8f0;
  --text: #1a202c;
  --text-muted: #718096;
  --accent: #3182ce;
  --green: #38a169;
  --yellow: #d69e2e;
  --red: #e53e3e;
  --purple: #805ad5;
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

#root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* App layout */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Idle: centered form */
.app-idle {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: var(--bg);
}

.app-idle-header {
  position: absolute;
  top: 16px;
  right: 16px;
}

.app-idle-scroll {
  align-items: flex-start;
  overflow-y: auto;
}

/* Running / done: two-column */
.app-running {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.app-header-logo {
  font-weight: 700;
  /* font-size: 15px; */
  color: var(--accent);
  letter-spacing: 0.5px;
}

.app-header-task {
  flex: 1;
  color: var(--text-muted);
  /* font-size: 13px; */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* 主题切换按钮 */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  /* font-size: 12px; */
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--text-muted);
  background: var(--card);
}

.app-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.app-sidebar {
  width: 240px;
  flex-shrink: 0;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--surface);
}

.app-main {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.app-progress-sidebar {
  width: 300px;
  flex-shrink: 0;
  overflow-y: auto;
  border-left: 1px solid var(--border);
  background: var(--surface);
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 7px 16px;
  /* font-size: 13px; */
  font-family: inherit;
  transition: opacity 0.15s, background 0.15s;
}

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

.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 600;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.85;
}

.btn-danger {
  background: transparent;
  color: var(--red);
  border: 1px solid var(--red);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(248, 81, 73, 0.1);
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 4px 8px;
  /* font-size: 12px; */
}

.btn-ghost:hover {
  color: var(--text);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  /* font-size: 11px; */
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-starting { background: rgba(88, 166, 255, 0.15); color: var(--accent); }
.badge-diverging { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }
.badge-closing { background: rgba(63, 185, 80, 0.15); color: var(--green); }
.badge-done { background: rgba(137, 87, 229, 0.15); color: var(--purple); }
.badge-default { background: rgba(139, 148, 158, 0.15); color: var(--text-muted); }

/* Spinner */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  animation: spin 1s linear infinite;
}

/* Reference cite */
.ref-cite {
  display: inline-block;
  background: rgba(88, 166, 255, 0.2);
  color: var(--accent);
  border-radius: 4px;
  padding: 0 3px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  /* font-size: 11px; */
  cursor: pointer;
  position: relative;
}

.ref-cite:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 8px;
  border-radius: 4px;
  /* font-size: 11px; */
  white-space: nowrap;
  z-index: 100;
  font-family: inherit;
  pointer-events: none;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Error banner */
.error-banner {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--red);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--red);
  /* font-size: 13px; */
  margin-bottom: 12px;
}

@media (max-width: 1200px) {
  .app-progress-sidebar {
    width: 260px;
  }
}

@media (max-width: 960px) {
  .app-body {
    flex-direction: column;
  }

  .app-sidebar,
  .app-progress-sidebar {
    width: 100%;
    border-right: none;
    border-left: none;
    border-bottom: 1px solid var(--border);
    max-height: 260px;
  }

  .app-main {
    padding: 14px;
  }
}


@keyframes qa-typing-dot {
  0%, 80%, 100% {
    transform: translateY(0);
    opacity: 0.35;
  }

  40% {
    transform: translateY(-5px);
    opacity: 1;
  }
}