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

:root {
  --color-bg-page: #0a0a0f;
  --color-bg-input-bar: #16161e;
  --color-border-input-bar: #2a2a38;
  --color-primary: #00b8e6;
  --color-text-primary: #ffffff;
  --color-text-secondary: #8a8a9a;
  --color-text-disabled: #4a4a5a;
  --color-bg-hover: rgba(255, 255, 255, 0.06);
  --color-bg-dropdown: #1e1e2a;
  --color-bg-upload: rgba(255, 255, 255, 0.04);
  --color-border-upload: #2a2a38;
  --color-btn-send-disabled: #3a3a4a;
  --color-btn-send-active: #00b8e6;
  --color-sidebar-bg: #0e0e14;

  /* Phase 3: Admin theme tokens */
  --color-bg-sidebar: #111118;
  --color-sidebar-active: rgba(255, 255, 255, 0.08);
  --color-sidebar-hover: rgba(255, 255, 255, 0.04);
  --color-bg-card: #16161e;
  --color-border-card: #2a2a38;
  --color-success: #00b894;
  --color-danger: #e74c3c;
  --color-warning: #f39c12;
  --radius-card: 12px;
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 64px;

  --radius-input-bar: 20px;
  --radius-btn: 8px;
  --radius-send-btn: 50%;
  --radius-thumbnail: 8px;
  --radius-dropdown: 12px;

  --input-bar-max-width: 900px;
  --send-btn-size: 36px;
  --thumbnail-size: 80px;
  --toolbar-height: 44px;
  --toolbar-btn-height: 32px;
}

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

html, body, #root {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border-input-bar);
  border-radius: 4px;
}