:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Noto Sans JP", "Yu Gothic", sans-serif; color: #15233b; background: #f5f7fb; }
* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
.feature-shell { display: flow-root; min-height: 300px; width: 100%; }
.feature-login { max-width: 470px; margin: 32px auto; padding: 28px; border: 1px solid #dbe2ed; border-radius: 18px; background: #fff; }
.feature-provider { margin: 0 0 8px; font-size: 13px; color: #4a5970; font-weight: 600; overflow-wrap: anywhere; }
h1 { font-size: 24px; line-height: 1.5; margin: 0 0 12px; overflow-wrap: anywhere; }
.feature-lead { font-size: 15px; line-height: 1.8; margin: 0 0 24px; }
label { display: block; font-size: 14px; font-weight: 700; margin: 18px 0 8px; }
input { display: block; width: 100%; min-height: 48px; border: 1px solid #8491a5; border-radius: 9px; background: #fff; color: inherit; padding: 10px 12px; font: inherit; font-size: 16px; }
input:focus-visible, button:focus-visible { outline: 3px solid #537fba; outline-offset: 3px; }
.feature-hint, .feature-privacy { font-size: var(--fs-2xs); line-height: 1.8; color: #526078; }
.feature-hint { margin: 8px 0 18px; }
.feature-privacy { border-top: 1px solid #e0e6ee; padding-top: 16px; margin: 16px 0 0; }
.feature-actions { display: flex; gap: 10px; flex-wrap: wrap; }
button { min-height: 44px; border: 1px solid #183757; border-radius: 9px; background: #183757; color: #fff; font: inherit; font-size: 14px; font-weight: 700; padding: 10px 18px; cursor: pointer; }
#feature-submit { flex: 1; }
button:hover { filter: brightness(1.08); }
button:disabled { opacity: .6; cursor: wait; }
.feature-secondary { background: #fff; color: #183757; border-color: #a7b3c4; }
.feature-status { font-size: 14px; line-height: 1.8; min-height: 1.8em; margin: 14px 0 0; overflow-wrap: anywhere; }
.feature-status.is-error { color: #a52335; }
.feature-session-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 16px; background: #fff; border-bottom: 1px solid #dbe2ed; font-size: 13px; }
#feature-current-user { overflow-wrap: anywhere; }
.feature-session-bar button { flex-shrink: 0; }
.feature-content-frame { display: block; border: 0; width: 100%; min-height: 280px; background: #fff; }
/* QA だけの設置の入口(/)の機能の一覧。上の button と同じ見た目の縦並び(目視の検査 低: 素の青い下線リンクで作りかけに見えた) */
.feature-links { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.feature-links a { display: flex; align-items: center; min-height: 44px; border: 1px solid #183757; border-radius: 9px; background: #183757; color: #fff; font-size: 14px; font-weight: 700; padding: 10px 18px; text-decoration: none; overflow-wrap: anywhere; }
.feature-links a:hover { filter: brightness(1.08); }
.feature-links a:focus-visible { outline: 3px solid #537fba; outline-offset: 3px; }
@media (max-width: 480px) { .feature-login { margin: 12px; padding: 22px 18px; border-radius: 12px; } h1 { font-size: 22px; } .feature-session-bar { padding: 8px 12px; } }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }