:root {
    --color-navy: #1a2b4a;
    --color-navy-light: #2a3f63;
    --color-bg: #f5f7fa;
    --color-text: #2b2b2b;
    --color-muted: #6b7280;
    --color-danger: #d64545;
    --color-caution: #e0a32e;
    --color-safe: #2e9e5b;
    --radius: 10px;
    --shadow: 0 2px 12px rgba(26, 43, 74, 0.08);
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: 'Noto Sans JP', system-ui, -apple-system, 'Hiragino Sans', 'Yu Gothic', sans-serif;
    color: var(--color-text);
    line-height: 1.7;
}
.site-header { background: var(--color-navy); color: #fff; }
.site-header__inner { max-width: 920px; margin: 0 auto; padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.site-logo { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; display: inline-flex; align-items: center; gap: 6px; }
.site-header__catch { margin: 0; font-size: 0.8rem; color: #c7d4e8; }
.site-footer { background: var(--color-navy); color: #c7d4e8; margin-top: 48px; }
.site-footer__inner { max-width: 920px; margin: 0 auto; padding: 20px 16px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.site-footer__nav a { color: #fff; text-decoration: none; font-size: 0.85rem; margin-right: 14px; }
.site-footer__copy { margin: 0; font-size: 0.8rem; }
.site-main { min-height: 60vh; }
.hero { background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light)); color: #fff; padding: 48px 16px; text-align: center; }
.hero__title { font-size: 1.6rem; margin: 0 0 12px; line-height: 1.4; }
.hero__subtitle { margin: 0 auto; max-width: 600px; font-size: 1rem; }
.entry { padding: 32px 16px; }
.entry__inner { max-width: 560px; margin: 0 auto; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 24px; }
.entry__heading { font-size: 1.3rem; margin: 0 0 18px; }
.field { margin-bottom: 18px; }
.field__label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 0.95rem; }
.field__input { width: 100%; padding: 12px 14px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 1rem; font-family: inherit; }
.field__input:focus { outline: none; border-color: var(--color-navy); box-shadow: 0 0 0 3px rgba(26,43,74,0.12); }
.field__error { color: var(--color-danger); font-size: 0.85rem; margin: 6px 0 0; }
.entry__submit { width: 100%; padding: 14px; background: var(--color-navy); color: #fff; border: none; border-radius: 8px; font-size: 1.05rem; font-weight: 700; cursor: pointer; transition: background .2s; }
.entry__submit:hover { background: var(--color-navy-light); }
.entry__assurances { list-style: none; margin: 20px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 0.85rem; color: var(--color-muted); }
.loading { padding: 40px 16px; }
.loading__inner { max-width: 560px; margin: 0 auto; text-align: center; }
.loading__title { font-size: 1.4rem; margin: 0 0 6px; }
.loading__url { color: var(--color-muted); margin: 0 0 24px; font-size: 0.9rem; word-break: break-all; }
.progress { height: 14px; background: #e5e7eb; border-radius: 7px; overflow: hidden; }
.progress__bar { height: 100%; width: 0%; background: var(--color-navy); transition: width .3s ease; }
.progress__label { margin: 8px 0 20px; font-weight: 700; color: var(--color-navy); }
.loading__current { font-size: 1rem; margin: 0 0 20px; min-height: 1.4em; }
.checkers { list-style: none; padding: 0; margin: 0 auto 24px; max-width: 380px; text-align: left; }
.checker { padding: 10px 14px; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 8px; font-size: 0.9rem; position: relative; color: var(--color-muted); }
.checker::before { content: '○ 待機'; font-size: 0.8rem; margin-right: 8px; }
.checker.is-running { border-color: var(--color-navy); color: var(--color-navy); font-weight: 500; }
.checker.is-running::before { content: '⟳ 実行中'; color: var(--color-navy); }
.checker.is-done { border-color: var(--color-safe); color: var(--color-safe); }
.checker.is-done::before { content: '✓ 完了'; color: var(--color-safe); }
.checker.is-error { border-color: var(--color-danger); color: var(--color-danger); }
.checker.is-error::before { content: '！確認失敗'; color: var(--color-danger); }
.loading__tip { background: #fff; border-left: 4px solid var(--color-caution); padding: 10px 14px; border-radius: 6px; font-size: 0.88rem; color: var(--color-text); text-align: left; transition: opacity .3s; }
.result { padding: 32px 16px; }
.result__inner { max-width: 760px; margin: 0 auto; }
.result__url { color: var(--color-muted); font-size: 0.9rem; word-break: break-all; margin: 0 0 12px; }
.diagnosis-disclaimer { background: #fffaf0; border: 1px solid #f0d9a6; border-radius: 8px; color: #6b5528; font-size: 0.85rem; line-height: 1.6; margin: 0 0 16px; padding: 12px 14px; }
.risk-badge { display: inline-block; padding: 10px 22px; border-radius: 999px; color: #fff; font-weight: 700; margin-bottom: 20px; }
.risk-badge--danger { background: var(--color-danger); }
.risk-badge--caution { background: var(--color-caution); }
.risk-badge--safe { background: var(--color-safe); }
.report { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 20px; }
.report h2 { font-size: 1.15rem; margin: 18px 0 8px; color: var(--color-navy); }
.report h2:first-child { margin-top: 0; }
.report ul { padding-left: 20px; }
.findings { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 20px; margin-bottom: 20px; }
.findings > summary { cursor: pointer; font-weight: 500; color: var(--color-navy); }
.findings__list { list-style: none; padding: 0; margin: 16px 0 0; }
.finding { border-top: 1px solid #eef0f3; padding: 12px 0; }
.finding__detail { margin: 0 0 6px; }
.finding__meta { margin: 0 0 6px; display: flex; gap: 10px; align-items: center; }
.finding__severity { font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; color: #fff; }
.finding__severity--crit, .finding__severity--high { background: var(--color-danger); }
.finding__severity--med { background: var(--color-caution); }
.finding__severity--low, .finding__severity--info { background: var(--color-safe); }
.finding__source { font-size: 0.8rem; color: var(--color-muted); }
.finding__technical { margin: 4px 0; font-size: 0.82rem; color: var(--color-muted); font-family: monospace; word-break: break-all;}
.finding__service { margin: 4px 0 0; font-size: 0.85rem; }
.cta { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; text-align: center; }
.cta__heading { font-size: 1.2rem; margin: 0 0 8px; color: var(--color-navy); }
.cta__desc { color: var(--color-muted); margin: 0 auto 20px; max-width: 640px; text-align: left; }
.cta__actions { display: flex; gap: 12px; max-width: 560px; margin: 0 auto; }
.cta__button { flex: 1; display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 16px; border: 1px solid transparent; border-radius: 8px; font-weight: 700; text-decoration: none; transition: background .2s, color .2s, border-color .2s; }
.cta__button--primary { background: var(--color-navy); color: #fff; }
.cta__button--primary:hover { background: var(--color-navy-light); }
.cta__button--secondary { background: #fff; border-color: var(--color-navy); color: var(--color-navy); }
.cta__button--secondary:hover { background: #eef2f7; }
.result__mock-note { text-align: center; color: var(--color-muted); font-size: 0.8rem; margin-top: 16px; }
@media (max-width: 480px) {
    .cta__actions { flex-direction: column; }
}
@media (min-width: 768px) {
    .site-header__inner { flex-direction: row; align-items: center; justify-content: space-between; }
    .hero { padding: 64px 16px; }
    .hero__title { font-size: 2rem; }
    .hero__subtitle { font-size: 1.1rem; }
    .loading__title { font-size: 1.6rem; }
}