/* Obsidian-inspired dark theme */
:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --accent-primary: #58a6ff;
  --accent-secondary: #79c0ff;
  --border: #30363d;
  --user-bg: #1f6feb;
  --assistant-bg: #21262d;
}

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

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

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.header h1 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.input-container {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border);
}
