/* 401(k) Prospect Finder web app. Self-contained: does not use /assets/style.css.

   Direction. Audience: advisors and sales staff reviewing leads, mostly at a desk.
   Job: rank plans and show the evidence behind each one. Reference: a bound annual
   report and a green accountant's ledger, because every number here comes from a
   government filing. Tokens below. Avoid: gradient heroes, shadows, pill buttons,
   rounded cards. Signature: ledger ruling, brass double rules, serif numerals.

   Fonts are self-hosted (static/fonts, SIL OFL 1.1, provenance in SOURCES.md) so
   no visitor data goes to a font CDN and the CSP stays default-src 'self'. */

@font-face { font-family: "Newsreader"; src: url("fonts/newsreader.woff2") format("woff2");
  font-weight: 400 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("fonts/public-sans.woff2") format("woff2");
  font-weight: 400 700; font-style: normal; font-display: swap; }

:root {
  color-scheme: light dark;
  --paper: #f5f1e6; --paper-2: #ebe4d2; --ink: #1d2621; --ink-2: #4f5a52;
  --rule: #d6cdb6; --field: #8d8571; --ruling: rgba(22, 61, 45, .05);
  --ledger: #163d2d; --ledger-ink: #f5f1e6; --ledger-ruling: rgba(245, 241, 230, .05);
  --brass: #9a6b12; --brass-text: #7d560c; --brass-bright: #d4a73a; --on-brass: #1a1405;
  --btn: var(--ledger); --btn-ink: var(--ledger-ink); --link: var(--ledger); --focus: var(--brass);
  --pos: #1f6b45; --neg: #9b3b2f; --warn-bg: #f6e7bf; --warn-ink: #5c4300;
  --err-bg: #f7dfd9; --err-ink: #7a2117; --hl: #f1e3b4;
  --tier-a: #163d2d; --tier-b: #3c6e57; --tier-c: #5a7568; --tier-x: #6b6f6c;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Public Sans", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, Consolas, monospace;
  --r: 2px;
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px; --s8: 64px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121814; --paper-2: #1a221d; --ink: #e9e4d6; --ink-2: #a7ae9f;
    --rule: #2f3b33; --field: #6c7568; --ruling: rgba(233, 228, 214, .028);
    --ledger: #0c2219; --ledger-ink: #e9e4d6; --ledger-ruling: rgba(233, 228, 214, .04);
    --brass: #b98d2c; --brass-text: #dcb45c;
    --btn: var(--brass-bright); --btn-ink: var(--on-brass); --link: var(--brass-text); --focus: var(--brass-bright);
    --pos: #8fd6ac; --neg: #f0a196; --warn-bg: #3a3112; --warn-ink: #f2dc8f;
    --err-bg: #3d1c18; --err-ink: #f6c1b9; --hl: #2e2a17;
    --tier-a: #2c6a50; --tier-b: #3d6656; --tier-c: #4c6358; --tier-x: #5b5f5c;
  }
}

/* ---------------------------------------------------------------- base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); background-color: var(--paper);
  background-image: repeating-linear-gradient(to bottom, transparent 0 31px, var(--ruling) 31px 32px);
  font: 16px/1.55 var(--sans); font-variant-numeric: tabular-nums;
}
a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--s4); }
main.wrap { padding-bottom: var(--s7); }

h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 2.2vw + 18px, 44px); line-height: 1.1; margin: var(--s6) 0 var(--s3); text-wrap: balance; }
h2 { font-size: 22px; line-height: 1.2; margin: 0 0 var(--s3); }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin: var(--s5) 0 var(--s2); color: var(--ink-2); }
p, li { max-width: 72ch; }
.lede { font-size: 18px; line-height: 1.6; color: var(--ink-2); }
.muted { color: var(--ink-2); font-size: 14px; }
code, .code { font-family: var(--mono); font-size: 12.5px; }
code { word-break: break-all; }

/* ---------------------------------------------------------------- header */
.top {
  background-color: var(--ledger); color: var(--ledger-ink);
  background-image: repeating-linear-gradient(to bottom, transparent 0 7px, var(--ledger-ruling) 7px 8px);
  border-bottom: 4px double var(--brass-bright);
}
.top-inner { display: flex; gap: var(--s4); align-items: center; justify-content: space-between; flex-wrap: wrap; padding: var(--s4); }
.top :focus-visible { outline-color: var(--brass-bright); }
.brand { color: var(--ledger-ink); text-decoration: none; font: 600 21px/1.2 var(--serif); }
.mark { font: 700 12px/1 var(--sans); letter-spacing: .18em; color: var(--brass-bright);
  border: 1px solid var(--brass-bright); padding: 4px 5px 3px 7px; margin-right: var(--s2); vertical-align: 3px; }
nav { display: flex; align-items: center; flex-wrap: wrap; gap: var(--s1) var(--s5); }
nav a, button.linkish { color: var(--ledger-ink); text-decoration: none; font-size: 15px; padding: var(--s1) 0; }
nav a:hover, button.linkish:hover { text-decoration: underline; text-underline-offset: 6px; }
nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--brass-bright);
  text-decoration-thickness: 2px; text-underline-offset: 6px; }
form.inline { display: inline; }
button.linkish { background: none; border: 0; font-family: inherit; cursor: pointer; }

.tenant-bar { border-bottom: 1px solid var(--rule); background: var(--paper-2); font-size: 13px; }
.tenant-inner { display: flex; justify-content: space-between; gap: var(--s3); flex-wrap: wrap; padding: var(--s2) var(--s4); color: var(--ink-2); }
.meter strong { color: var(--ink); font-size: 14px; }

/* ---------------------------------------------------------------- overview */
.hero { padding: var(--s3) 0 var(--s2); }
.hero h1 { max-width: 22ch; margin-top: var(--s7); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin: var(--s6) 0;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); }
.stat { padding: var(--s4) var(--s4) var(--s4) 0; border-right: 1px solid var(--rule); }
.stat + .stat { padding-left: var(--s4); }
.stat:last-child { border-right: 0; }
.stat .n { font: 500 46px/1 var(--serif); letter-spacing: -.02em; font-variant-numeric: lining-nums tabular-nums; }
.stat .l { margin-top: var(--s2); color: var(--ink-2); font-size: 14px; max-width: 24ch; }
.stat.accent .n { color: var(--brass-text); font-weight: 600; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 0 var(--s6); }

/* A "card" is a ledger section: a brass double rule over plain paper, no box. */
.card { background: var(--paper); border-top: 3px double var(--brass); padding: var(--s4) 0 var(--s3); margin: var(--s6) 0 0; min-width: 0; }
.prose p, .prose li { max-width: 72ch; }
ol.steps { padding-left: 1.4em; } ol.steps li { margin: var(--s2) 0; padding-left: var(--s1); }
ol.steps li::marker { font: 600 18px var(--serif); color: var(--brass-text); }

table.kv { width: 100%; border-collapse: collapse; }
table.kv th, table.kv td { text-align: left; padding: var(--s2) 0; border-bottom: 1px dotted var(--field); vertical-align: top; }
table.kv th { font-weight: 400; color: var(--ink-2); width: 48%; padding-right: var(--s4); }
table.kv td { font-weight: 500; }

/* ---------------------------------------------------------------- controls */
.btn { display: inline-flex; align-items: center; gap: var(--s2); min-height: 44px; background: var(--btn); color: var(--btn-ink);
  border: 1px solid var(--btn); border-radius: var(--r); padding: var(--s2) var(--s4); text-decoration: none;
  cursor: pointer; font: 600 15px/1.2 var(--sans); transition: transform .12s ease-out; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--field); }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; }

input, select, textarea { font: inherit; font-size: 16px; color: var(--ink); background: var(--paper);
  border: 1px solid var(--field); border-radius: var(--r); padding: var(--s2) var(--s3); min-height: 44px; }
textarea { min-height: 0; }
.chk { display: inline-flex; gap: var(--s2); align-items: center; min-height: 44px; }
.chk input { min-height: 0; width: 18px; height: 18px; accent-color: var(--ledger); }

.filters { display: flex; flex-wrap: wrap; gap: var(--s3); align-items: flex-end; margin: var(--s4) 0; }
.filters label.field { display: flex; flex-direction: column; gap: var(--s1); font-size: 13px; color: var(--ink-2); }
.filters label.field.grow { flex: 1 1 260px; }
.filters label.field input[type=search] { width: 100%; }

.auth { max-width: 440px; margin: var(--s7) auto; }
.auth h1 { margin-top: var(--s2); }
.auth label { display: block; margin: var(--s4) 0; font-weight: 500; }
.auth input { display: block; width: 100%; margin-top: var(--s1); }
.auth .btn { margin-top: var(--s2); width: 100%; justify-content: center; }

.alert, .info { border-radius: var(--r); padding: var(--s3) var(--s4); border-left: 0; }
.alert { background: var(--err-bg); color: var(--err-ink); }
.info { background: var(--warn-bg); color: var(--warn-ink); }

/* ---------------------------------------------------------------- prospect table */
.table-wrap { overflow-x: auto; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); background: var(--paper); }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th { position: sticky; top: 0; background: var(--paper-2); text-align: left; padding: var(--s2) var(--s3);
  white-space: nowrap; border-bottom: 1px solid var(--rule); cursor: pointer; user-select: none;
  font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); }
table.data.static th { cursor: default; }
table.data th[aria-sort=ascending]::after { content: " \25B2"; color: var(--brass-text); }
table.data th[aria-sort=descending]::after { content: " \25BC"; color: var(--brass-text); }
table.data td { padding: var(--s2) var(--s3); border-bottom: 1px solid var(--rule); vertical-align: top; }
table.data tbody tr:hover td { background: var(--paper-2); }
table.data tr.hl td { background: var(--hl); }
.why { color: var(--ink-2); font-size: 12.5px; max-width: 360px; }

.tier { display: inline-block; min-width: 30px; text-align: center; border-radius: var(--r); padding: 2px var(--s2);
  font: 700 13px/1.5 var(--sans); color: #fff; letter-spacing: .02em; }
.tier-A { background: var(--tier-a); } .tier-B { background: var(--tier-b); }
.tier-C { background: var(--tier-c); } .tier-x { background: var(--tier-x); }
.pill, .tag { display: inline-block; border-radius: var(--r); font-size: 12px; }
.pill { padding: 3px var(--s2); }
.pill.warn { background: var(--warn-bg); color: var(--warn-ink); font-weight: 600; }
.tag { border: 1px solid var(--rule); padding: 0 6px; margin-left: 6px; color: var(--ink-2); }

/* ---------------------------------------------------------------- plan page */
.plan-head { display: flex; justify-content: space-between; gap: var(--s4); flex-wrap: wrap; align-items: flex-start; }
.plan-head h1 { margin: var(--s3) 0 var(--s1); }
.badges { display: flex; gap: var(--s2); align-items: center; margin-top: var(--s5); }
ul.reasons { padding-left: 1.2em; } ul.reasons li { margin: var(--s1) 0; }
ul.reasons li.pos { color: var(--pos); } ul.reasons li.neg { color: var(--neg); } ul.reasons li.note { color: var(--warn-ink); }

/* Provenance labels: reported (solid), AI-estimated (dashed: not a filing), your team (brass). */
.src { display: inline-block; font: 700 11px/1.6 var(--sans); text-transform: uppercase; letter-spacing: .08em;
  border-radius: var(--r); padding: 1px 7px; margin-right: var(--s2); vertical-align: 4px; border: 1px solid transparent; }
.src-dol { background: var(--ledger); color: var(--ledger-ink); }
.src-ai { background: transparent; color: var(--ink); border: 1px dashed var(--ink-2); }
.src-you { background: var(--brass-bright); color: var(--on-brass); }
.code { display: inline-block; border: 1px solid var(--rule); border-radius: var(--r); padding: 0 4px; cursor: help; }
.sources { font-size: 13px; word-break: break-all; }
.review label { display: block; margin: var(--s3) 0; font-weight: 500; }
.review textarea { width: 100%; display: block; margin-top: var(--s1); font-weight: 400; }
.review select { display: block; margin-top: var(--s1); font-weight: 400; }
.review .btn { margin-right: var(--s3); }

.foot { color: var(--ink-2); font-size: 13px; padding: var(--s5) var(--s4) var(--s7); border-top: 3px double var(--rule); }

/* ---------------------------------------------------------------- motion */
/* One orchestrated entrance: page sections rise in sequence. Off for reduced motion. */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
main > * { animation: rise .55s cubic-bezier(.2, .7, .2, 1) both; }
main > :nth-child(2) { animation-delay: .06s; } main > :nth-child(3) { animation-delay: .12s; }
main > :nth-child(4) { animation-delay: .18s; } main > :nth-child(5) { animation-delay: .24s; }
main > :nth-child(6) { animation-delay: .30s; } main > :nth-child(n+7) { animation-delay: .36s; }
@media (prefers-reduced-motion: reduce) {
  main > * { animation: none; }
  .btn { transition: none; }
}

/* ---------------------------------------------------------------- narrow screens */
@media (max-width: 640px) {
  .brand { font-size: 18px; }
  .hero h1 { margin-top: var(--s5); }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat, .stat + .stat { padding: var(--s3) var(--s3) var(--s3) 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .stat:nth-child(even) { padding-left: var(--s3); border-left: 1px solid var(--rule); }
  .stat .n { font-size: 36px; }
  .badges { margin-top: 0; }
}