* { box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; margin: 0; background: #f5f5f7; color: #1d1d1f; }
.topbar { position: sticky; top: 0; background: #fff; padding: 12px 24px; border-bottom: 1px solid #d2d2d7; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 1px 3px rgba(0,0,0,0.04); z-index: 10; }
.topbar h1 { margin: 0; font-size: 18px; }
.topbar button { background: #0071e3; color: white; border: 0; padding: 10px 20px; border-radius: 6px; cursor: pointer; font-size: 14px; }
.topbar button:disabled { background: #a1a1a6; cursor: not-allowed; }
main { max-width: 900px; margin: 24px auto; padding: 0 24px; }
section { background: white; border-radius: 8px; padding: 20px; margin-bottom: 16px; border: 1px solid #d2d2d7; }
section h2 { margin-top: 0; font-size: 16px; }
label { display: block; margin: 8px 0 4px; font-size: 13px; color: #515154; }
input[type="text"], input[type="number"], textarea { width: 100%; padding: 8px; border: 1px solid #d2d2d7; border-radius: 4px; font-family: monospace; font-size: 13px; }
textarea { min-height: 120px; resize: vertical; }
.error { color: #d93025; font-size: 12px; }
.warn { color: #b25e00; font-size: 12px; }
.ok { color: #1e8e3e; font-size: 12px; }
.privacy-note { background: #fff8e1; padding: 10px 14px; border-radius: 6px; font-size: 12px; margin-bottom: 16px; }