/* CryptoTaxMatch: plain, trustworthy utility look. One reading column; tools sit in cards. */
:root {
  --paper: #f5f7f6; --sheet: #ffffff; --ink: #14201c; --muted: #56655f; --rule: #d8e0dc; --tint: #ebf1ee;
  --accent: #116149; --accent-ink: #ffffff; --accent-soft: #dff0e8;
  --ok: #1d6b45; --ok-bg: #e2f2e9; --warn: #8a5800; --warn-bg: #fbf0d9; --bad: #a52a1d; --bad-bg: #fbe6e3;
  --info: #34478f; --info-bg: #e8ecfb;
  --body: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root {
  --paper: #0e1513; --sheet: #151e1b; --ink: #e3ebe7; --muted: #97a8a1; --rule: #283632; --tint: #1b2622;
  --accent: #6fd0a8; --accent-ink: #0e1513; --accent-soft: #163128;
  --ok: #6fd3a0; --ok-bg: #11291d; --warn: #f0c46a; --warn-bg: #2a2311; --bad: #ff9a8c; --bad-bg: #321814;
  --info: #a9b8ff; --info-bg: #1b2240; color-scheme: dark; } }

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 16px/1.6 var(--body); -webkit-text-size-adjust: 100%; }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }

header.site { background: var(--sheet); border-bottom: 1px solid var(--rule); }
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 22px; padding-block: 12px; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand b { color: var(--accent); }
nav.main { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 0.95rem; }
nav.main a { color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
nav.main a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
nav.main a:hover { color: var(--ink); }
.beta { margin-left: auto; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; background: var(--warn-bg); color: var(--warn); }

main { padding-block: 28px 64px; display: grid; gap: 18px; }
footer.site { border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.85rem; }
footer.site .wrap { padding-block: 18px 32px; display: grid; gap: 6px; }

h1 { font-size: 2rem; line-height: 1.2; margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 0; }
h3 { font-size: 0.98rem; margin: 6px 0 2px; }
p { margin: 0; max-width: 68ch; }
.lead { font-size: 1.1rem; color: var(--muted); }
.muted { color: var(--muted); } .fine { color: var(--muted); font-size: 0.83rem; }
code { font-family: var(--mono); font-size: 0.86em; word-break: break-all; }

.hero { display: grid; gap: 14px; padding-block: 18px 8px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.steps { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); counter-reset: step; }
.steps li { list-style: none; background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; padding: 14px 16px; counter-increment: step; }
.steps li::before { content: counter(step); display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 0.85rem; margin-right: 8px; }
.steps { padding: 0; margin: 0; }

.card { background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; padding: 16px 18px; display: grid; gap: 12px; min-width: 0; }
.card > header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
a.card { color: inherit; text-decoration: none; } a.card:hover { border-color: var(--accent); }
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.stat { display: grid; gap: 2px; } .stat .v { font: 600 1.4rem/1.1 var(--mono); font-variant-numeric: tabular-nums; } .stat .k { color: var(--muted); font-size: 0.8rem; }

.banner { border-radius: 8px; padding: 12px 16px; font-weight: 600; }
.banner.ok { background: var(--ok-bg); color: var(--ok); } .banner.fail { background: var(--bad-bg); color: var(--bad); } .banner.warn { background: var(--warn-bg); color: var(--warn); }
.error { background: var(--bad-bg); color: var(--bad); border-radius: 8px; padding: 10px 14px; }
.engine { font-size: 0.82rem; padding: 4px 10px; border-radius: 999px; background: var(--warn-bg); color: var(--warn); justify-self: start; }
.engine.ready { background: var(--ok-bg); color: var(--ok); } .engine.fail { background: var(--bad-bg); color: var(--bad); }

.btn { font: 600 0.95rem var(--body); cursor: pointer; border-radius: 8px; padding: 9px 16px; background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); display: inline-block; text-decoration: none; text-align: center; }
.btn.secondary { background: var(--sheet); color: var(--ink); border-color: var(--rule); }
.btn.big { font-size: 1.05rem; padding: 12px 22px; }
.btn:disabled { opacity: 0.5; cursor: progress; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.form { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); align-items: end; }
.form label { display: grid; gap: 4px; font-size: 0.83rem; font-weight: 600; color: var(--muted); }
.form .wide { grid-column: 1 / -1; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 8px 10px; min-width: 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.04em; }
td.r, th.r { text-align: right; } .num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.note { color: var(--muted); font-size: 0.8rem; margin-top: 2px; }
.pill { display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.pill.error { background: var(--bad-bg); color: var(--bad); } .pill.warning { background: var(--warn-bg); color: var(--warn); } .pill.info { background: var(--info-bg); color: var(--info); } .pill.ok { background: var(--ok-bg); color: var(--ok); }
.subtabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--rule); }
.subtabs button { font: inherit; font-size: 0.92rem; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); padding: 7px 10px; cursor: pointer; }
.subtabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
ul.plain { margin: 0; padding-left: 20px; display: grid; gap: 4px; }
.choices button { font: 600 0.8rem var(--body); padding: 5px 9px; border-radius: 6px; cursor: pointer; border: 1px solid var(--rule); background: var(--sheet); color: var(--ink); }
.choices button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
[hidden] { display: none !important; }
@media (max-width: 560px) { h1 { font-size: 1.55rem; } .beta { margin-left: 0; } }

/* plain-English findings */
.finding { border: 1px solid var(--rule); border-radius: 8px; padding: 12px 14px; display: grid; gap: 8px; min-width: 0; }
.finding > header { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.finding h3 { margin: 0; font-size: 1rem; }
.finding dl.qa { display: grid; grid-template-columns: minmax(9rem, max-content) 1fr; gap: 4px 12px; margin: 0; }
.finding dl.qa dt { font-weight: 600; color: var(--muted); font-size: 0.85rem; }
.finding dl.qa dd { margin: 0; overflow-wrap: anywhere; }
.finding .leads { font-size: 0.85rem; }
.finding .progress { align-items: center; gap: 8px; }
.finding details.tech summary { cursor: pointer; font-size: 0.85rem; color: var(--muted); }
.finding details.tech dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; font-size: 0.8rem; margin: 8px 0 0; }
.finding details.tech dd { margin: 0; overflow-wrap: anywhere; }
.finding details.tech pre { margin: 0; white-space: pre-wrap; font-size: 0.75rem; max-height: 16rem; overflow: auto; }
@media (max-width: 560px) { .finding dl.qa { grid-template-columns: 1fr; } .finding dl.qa dd { margin-bottom: 6px; } }

/* multi-source matrix */
table.matrix td { vertical-align: top; min-width: 9rem; }
table.matrix tr.flag td:first-child { box-shadow: inset 3px 0 0 var(--warn); }