:root {
    --bg: #f6f7f9; --card: #ffffff; --text: #16191d; --muted: #6b7280; --line: #e4e7ec;
    --accent: #16a34a; --accent-ink: #ffffff; --bad: #c62828; --warn: #b45309; --ok: #15803d;
    --tag: #eef2f7; --code: #f1f3f6; --danger-bg: #fff5f5; --test: #e8f5ec; --main: #fff4e5;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1216; --card: #171b21; --text: #e6e9ee; --muted: #9aa3af; --line: #2a3039;
        --accent: #22c55e; --accent-ink: #06210f; --bad: #f87171; --warn: #fbbf24; --ok: #4ade80;
        --tag: #222833; --code: #1f242c; --danger-bg: #2a1717; --test: #13261a; --main: #2b2012;
    }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
a { color: var(--accent); }
button { font: inherit; cursor: pointer; border: 1px solid var(--line); background: var(--card); color: var(--text); border-radius: 8px; padding: 6px 12px; }
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.dangerbtn { background: var(--bad); color: #fff; border-color: var(--bad); font-weight: 600; }
button.warnbtn { border-color: var(--warn); color: var(--warn); }
button.link { border: 0; background: none; color: var(--muted); text-decoration: underline; }
input, select { font: inherit; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); min-width: 0; width: 100%; }
code { background: var(--code); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }
.muted { color: var(--muted); } .small { font-size: 13px; } .bad { color: var(--bad); } .ok { color: var(--ok); } .warn { color: var(--warn); }
.yes { color: var(--ok); font-weight: 600; } .no { color: var(--muted); }
.center { text-align: center; }

header { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 5; }
.brand { margin-right: auto; }
.nets { display: flex; gap: 4px; }
.nets button.active { background: var(--text); color: var(--bg); border-color: var(--text); }
#wallet { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.blurb { margin: 0; padding: 8px 16px; font-size: 13px; border-bottom: 1px solid var(--line); }
.blurb.testnet { background: var(--test); } .blurb.mainnet { background: var(--main); }
.tabs { display: flex; gap: 2px; padding: 8px 16px 0; overflow-x: auto; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 12px; color: var(--muted); }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
main { padding: 16px; max-width: 1200px; margin: 0 auto; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-bottom: 16px; }
.card h2 { margin: 0 0 10px; font-size: 19px; } .card h3 { margin: 0 0 10px; font-size: 16px; }
.note { background: var(--tag); padding: 8px 12px; border-radius: 8px; font-size: 13.5px; }

.addr { display: inline-flex; gap: 4px; align-items: center; flex-wrap: wrap; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.addr .copy { padding: 0 5px; font-size: 12px; border-radius: 5px; }
.tag { font-family: system-ui, sans-serif; background: var(--tag); color: var(--muted); border-radius: 999px; padding: 0 8px; font-size: 12px; }
.badge { font-size: 12px; font-weight: 500; padding: 2px 10px; border-radius: 999px; background: var(--tag); color: var(--muted); vertical-align: middle; }
.okbadge { color: var(--ok); } .warnbadge { color: var(--warn); }

.flow { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; max-width: 640px; }
.fbox { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; background: var(--bg); width: 100%; max-width: 640px; font-size: 13.5px; }
.fbox strong { font-size: 14.5px; }
.f-rew { border-color: var(--accent); } .f-fee { border-style: dashed; }
.farrow { color: var(--muted); font-size: 18px; line-height: 1; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; }
.stat strong { font-size: 17px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.checks li { padding: 8px 12px; border-radius: 8px; background: var(--bg); border-left: 4px solid var(--line); }
.checks li.ok { border-left-color: var(--ok); color: var(--text); } .checks li.warn { border-left-color: var(--warn); color: var(--text); } .checks li.bad { border-left-color: var(--bad); color: var(--text); }

.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
tr.dangerrow td { background: var(--danger-bg); }

.cgrid { display: grid; grid-template-columns: 220px 1fr; gap: 16px; align-items: start; }
.cnav { display: flex; flex-direction: column; gap: 4px; position: sticky; top: 120px; }
.cnav button { text-align: left; }
.cnav button.active { background: var(--text); color: var(--bg); border-color: var(--text); }
dl.reads { display: grid; grid-template-columns: minmax(160px, 1fr) 2fr; gap: 0; margin: 0; }
dl.reads dt, dl.reads dd { padding: 8px 0; border-bottom: 1px solid var(--line); margin: 0; }
dl.reads dt { font-weight: 600; padding-right: 12px; }
dl.reads dt small { display: block; font-weight: 400; color: var(--muted); }
form.fn { border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin-bottom: 10px; background: var(--bg); }
form.fn.danger { border-color: var(--bad); }
.fnhead { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; align-items: baseline; }
form.fn p { margin: 6px 0; }
.fields { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-top: 6px; }
.fields label { display: flex; flex-direction: column; gap: 3px; font-size: 13px; flex: 1 1 220px; }
.fields > input { flex: 1 1 260px; }
.pv { color: var(--muted); min-height: 1em; }
.status { margin-top: 6px; font-size: 13.5px; }
.status.ok { color: var(--ok); } .status.bad { color: var(--bad); }
.result { margin-top: 8px; font-size: 14px; }
.tuple div { padding: 2px 0; }

#modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.mbox { background: var(--card); border-radius: 14px; padding: 16px; width: 100%; max-width: 420px; }
.mhead { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.wallets { display: grid; gap: 8px; }
.walletbtn { display: flex; gap: 10px; align-items: center; padding: 10px 12px; text-align: left; }
.walletbtn img { width: 24px; height: 24px; }
.mbox svg { max-width: 100%; height: auto; background: #fff; border-radius: 8px; }
.toast { position: fixed; bottom: 16px; right: 16px; background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 10px; z-index: 60; max-width: 90vw; }
.toast.bad { background: var(--bad); color: #fff; } .toast.ok { background: var(--ok); color: #fff; }

.guide li { margin-bottom: 6px; }
.loginpage { display: flex; min-height: 100vh; align-items: center; justify-content: center; padding: 16px; }
.loginpage form { width: 100%; max-width: 340px; display: flex; flex-direction: column; gap: 10px; }
.loginpage h1 { margin: 0; font-size: 22px; }

@media (max-width: 760px) {
    .cgrid { grid-template-columns: 1fr; }
    .cnav { flex-direction: row; flex-wrap: wrap; position: static; }
    dl.reads { grid-template-columns: 1fr; }
    dl.reads dt { border-bottom: 0; padding-bottom: 0; }
    .split { grid-template-columns: 1fr; }
    .brand { width: 100%; }
}