* { box-sizing: border-box; }
html, body { margin: 0; background: #fff; color: #202124; }
body { font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif; }

main { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; }
main.home { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-bottom: 20vh; }

form { display: flex; gap: 8px; width: 100%; max-width: 584px; margin: 0 auto; }
input { flex: 1; min-width: 0; height: 46px; padding: 0 20px; font: inherit; font-size: 16px;
        border: 1px solid #dfe1e5; border-radius: 24px; outline: none; }
input:hover, input:focus { border-color: #c4c7cc; box-shadow: 0 1px 6px rgba(32,33,36,.18); }
button { height: 46px; padding: 0 22px; font: inherit; color: #202124; background: #f8f9fa;
         border: 1px solid #f8f9fa; border-radius: 6px; cursor: pointer; }
button:hover { border-color: #dadce0; }
button:disabled { color: #80868b; cursor: default; }

#status { text-align: center; color: #5f6368; min-height: 1.6em; margin: 16px 0 0; }
#status.error { color: #c5221f; }

#report { margin-top: 24px; }
.domain { font-size: 13px; color: #5f6368; margin: 0; }
.counts { display: flex; gap: 24px; margin: 8px 0 4px; font-size: 15px; }
.counts b { font-size: 24px; font-weight: 600; margin-left: 4px; }
.conclusion { font-size: 18px; margin: 4px 0 20px; }

.item { border-top: 1px solid #e8eaed; padding: 16px 0; }
.item h2 { font-size: 16px; font-weight: 600; margin: 0 0 6px; display: flex; gap: 10px; align-items: baseline; }
.badge { font-size: 13px; font-weight: 600; white-space: nowrap; }
.pass .badge { color: #188038; }
.warn .badge { color: #b06000; }
.fail .badge { color: #c5221f; }
.unknown .badge { color: #5f6368; }
.item dl { margin: 0; }
.item dt { font-size: 13px; color: #5f6368; margin-top: 8px; }
.item dd { margin: 2px 0 0; white-space: pre-wrap; word-break: break-word; }
.item dd.code { font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: #f8f9fa; padding: 8px 10px; border-radius: 4px; }
.item ul { margin: 2px 0 0; padding-left: 18px; }
.item a { color: #1a0dab; text-decoration: none; word-break: break-word; }
.item a:hover { text-decoration: underline; }

.foot { border-top: 1px solid #e8eaed; margin-top: 8px; padding-top: 16px; font-size: 13px; color: #5f6368; }
.foot p { margin: 4px 0; }