:root{--bg:#f5f6f8;--card:#fff;--ink:#1d2330;--sub:#5d6678;--line:#dfe3ea;--brand:#1f6feb;--brand-ink:#fff;--ok:#0f7b45;--okbg:#e6f5ec;--warn:#8a5a00;--warnbg:#fff3d6;--err:#b42318;--errbg:#fde8e6;--badge:#06a85f}
@media (prefers-color-scheme:dark){:root{--bg:#12151b;--card:#1b2029;--ink:#eef1f6;--sub:#a3adbf;--line:#2e3644;--brand:#5b9bff;--brand-ink:#0b1220;--okbg:#10301f;--ok:#6fdc9e;--warnbg:#3a2d0c;--warn:#f1c25a;--errbg:#3b1613;--err:#ff8f85}}
*{box-sizing:border-box}a{color:var(--brand)}.btn{color:var(--ink)}.btn.primary{color:var(--brand-ink)}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,"Hiragino Sans","Noto Sans JP",sans-serif}
.wrap{max-width:900px;margin:0 auto;padding:20px 16px 60px}
h1{font-size:1.4rem;margin:.2em 0 .1em}h2{font-size:1.1rem;margin:1.6em 0 .6em}
.sub{color:var(--sub);font-size:.9rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
@media (max-width:640px){.plans{grid-template-columns:1fr}.info{grid-template-columns:1fr}.info dd{margin-bottom:8px}}
.plan{position:relative;display:flex;flex-direction:column}
.plan.current{border:2px solid var(--badge)}
.plan h3{margin:0 0 4px;font-size:1.1rem}
.price{font-size:1.9rem;font-weight:700;margin:.2em 0}.price small{font-size:.9rem;font-weight:400;color:var(--sub)}
.tagline{color:var(--sub);margin:0 0 .6em}
.plan ul{padding-left:1.2em;margin:.4em 0 1em;flex:1}.plan li{margin:.25em 0}
.badge{display:inline-block;background:var(--badge);color:#fff;font-size:.8rem;font-weight:700;padding:2px 10px;border-radius:999px;margin-left:8px;vertical-align:middle}
button,.btn{font:inherit;font-weight:700;border-radius:10px;border:1px solid var(--line);padding:12px 18px;cursor:pointer;background:var(--card);color:var(--ink);text-decoration:none;display:inline-block;text-align:center}
button.primary,.btn.primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
button.danger{color:var(--err)}
button:disabled{opacity:.5;cursor:not-allowed}
button:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.notice{border-radius:12px;padding:14px 16px;margin:16px 0}
.notice.ok{background:var(--okbg);color:var(--ok)}.notice.warn{background:var(--warnbg);color:var(--warn)}.notice.err{background:var(--errbg);color:var(--err)}
.notice b{display:block;margin-bottom:2px}
.info{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:0}.info dt{color:var(--sub)}.info dd{margin:0;font-weight:600}
dialog{border:none;border-radius:16px;padding:0;max-width:480px;width:calc(100% - 32px);background:var(--card);color:var(--ink)}
dialog::backdrop{background:rgba(0,0,0,.5)}
.dlg{padding:22px}.dlg h2{margin:0 0 12px}
table.rows{width:100%;border-collapse:collapse;margin:8px 0 14px}
table.rows th{text-align:left;font-weight:400;color:var(--sub);padding:8px 0;border-bottom:1px solid var(--line);width:48%}
table.rows td{text-align:right;font-weight:700;padding:8px 0;border-bottom:1px solid var(--line)}
table.rows tr.hl td,table.rows tr.hl th{color:var(--ink)}
.actions{display:flex;gap:10px;flex-wrap:wrap}.actions>*{flex:1;min-width:140px}
.demo-bar{background:#fff8e1;color:#5c4400;border:1px dashed #d2a400;border-radius:12px;padding:12px 14px;margin:18px 0;font-size:.9rem}
@media (prefers-color-scheme:dark){.demo-bar{background:#332a08;color:#f1d98a;border-color:#8c6d00}}
.demo-bar label{margin-right:12px;white-space:nowrap}.demo-bar button{padding:6px 12px;font-size:.85rem}
.demo-bar select{font:inherit;padding:4px}
input[type=email]{font:inherit;padding:12px;border:1px solid var(--line);border-radius:10px;width:100%;background:var(--card);color:var(--ink)}
table.list{width:100%;border-collapse:collapse;font-size:.9rem}table.list th,table.list td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}
.tag{display:inline-block;border-radius:6px;padding:1px 8px;font-size:.8rem;background:var(--line)}
.scroll{overflow-x:auto}