:root {
  --blue: #0d6efd;
  --white: #ffffff;
  --gray: #f4f6f8;
  --text: #1f2933;
}
body { font-family: system-ui, sans-serif; margin: 0; background: var(--gray); color: var(--text); }
.container { width: min(1100px, 92%); margin: 0 auto; }
.topbar { background: var(--white); border-bottom: 1px solid rgba(13,110,253,0.12); }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.logo img { height: 50px; }
.page-title { font-size: 1.6rem; color: var(--blue); }
.footer { text-align: center; padding: 1rem; color: #666; }