:root { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #17191c; background: #f6f7f9; }
* { box-sizing: border-box; }
body { margin: 0; background: #f6f7f9; color: #17191c; }
header { background: #fff; border-bottom: 1px solid #ddd; padding: 16px 24px; }
main { max-width: 1100px; margin: 32px auto; padding: 0 20px; }
a { color: inherit; }
.card { background: #fff; border: 1px solid #ddd; border-radius: 12px; padding: 20px; margin: 14px 0; }
input, textarea, select { width: 100%; padding: 10px; margin: 5px 0 14px; border: 1px solid #bbb; border-radius: 8px; font: inherit; }
button, .button { display: inline-block; background: #111; color: #fff; border: 0; border-radius: 8px; padding: 10px 14px; text-decoration: none; font: inherit; cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
.muted { color: #666; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; }