body { font-family: system-ui, sans-serif; margin: 0; background: #f6f6f6; color: #222; }
.wrap { max-width: 720px; margin: 0 auto; padding: 16px; }
.card { background: #fff; border-radius: 8px; padding: 16px; margin-bottom: 12px; box-shadow: 0 1px 3px rgba(0,0,0,.1); }
h1 { font-size: 20px; margin: 0 0 12px; }
textarea { width: 100%; min-height: 140px; font-size: 16px; padding: 8px; box-sizing: border-box; }
input { width: 100%; font-size: 16px; padding: 8px; box-sizing: border-box; margin-bottom: 8px; }
button { font-size: 16px; padding: 10px 16px; border-radius: 6px; border: 1px solid #ccc; background: #fff; cursor: pointer; }
button.primary { background: #1a73e8; color: #fff; border-color: #1a73e8; }
button:disabled { opacity: .5; cursor: not-allowed; }
.err { color: #c00; }
.ok { color: #080; }
.muted { color: #666; font-size: 14px; }
.star { color: #e8a200; font-size: 18px; }
nav a { margin-right: 12px; }