/* Well Iron Filter. System fonts only. No third-party requests. */

:root {
  --navy: #0b1f3a;
  --blue: #1c8cdb;
  --blue-deep: #0f5f96;
  --orange: #d85a1a;
  --orange-ink: #8a3e16;
  --ink: #1a2838;
  --muted: #5c6b7a;
  --line: #e3eaf1;
  --soft: #f5f8fb;
  --safety: #fff7f2;
  --disc: #f3f8fc;
  --paper: #ffffff;
  --measure: 40rem;
  --wide: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  border-top: 6px solid var(--orange);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--blue-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--navy);
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

::selection {
  background: #d7ebf8;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--navy);
  color: #fff;
  padding: 0.5rem 0.8rem;
  z-index: 5;
}

.skip:focus {
  top: 0.75rem;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.header-inner,
.footer-inner,
.wrap {
  width: min(100% - 2.5rem, var(--wide));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--navy);
  font-weight: 750;
  letter-spacing: -0.03em;
  text-decoration: none;
  font-size: 1.65rem;
}

.brand img {
  width: 76px;
  height: 76px;
  display: block;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.site-nav a {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.94rem;
  padding: 0.15rem 0;
}

.site-nav a:hover {
  color: var(--blue-deep);
}

.site-nav a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--orange);
}

.wrap {
  padding: 2.25rem 0 4rem;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

.crumbs a {
  color: var(--muted);
}

h1,
.dek,
.updated,
.notice,
.prose,
.sources,
.page-list {
  max-width: var(--measure);
}

h1 {
  margin: 0 0 0.75rem;
  color: var(--navy);
  font-size: clamp(1.85rem, 4vw, 2.55rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 720;
}

.dek {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  color: var(--ink);
}

.updated {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.notice {
  border-radius: 12px;
  padding: 1rem 1.1rem 1rem 1.15rem;
  margin: 0 0 1rem;
}

.notice p {
  margin: 0.35rem 0 0;
}

.notice p:first-child {
  margin-top: 0;
}

.notice-safety {
  background: var(--safety);
  border-left: 4px solid var(--orange);
}

.notice-disclosure {
  background: var(--disc);
  border-left: 4px solid var(--blue);
}

.notice-kicker {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notice-safety .notice-kicker {
  color: var(--orange-ink);
}

.notice-disclosure .notice-kicker {
  color: var(--blue-deep);
}

.prose > * + * {
  margin-top: 1rem;
}

h2 {
  margin: 2.25rem 0 0.7rem;
  color: var(--navy);
  font-size: 1.45rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: var(--measure);
}

h3 {
  margin: 1.4rem 0 0.4rem;
  color: var(--navy);
  font-size: 1.1rem;
  line-height: 1.35;
  max-width: var(--measure);
}

p,
li {
  max-width: var(--measure);
}

.prose ul,
.prose ol {
  padding-left: 1.2rem;
}

.prose li + li {
  margin-top: 0.4rem;
}

.cards {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  max-width: var(--wide);
}

.cards li,
.card-link {
  max-width: none;
}

.cards article,
.cards li {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.05rem 1.15rem 1.1rem;
  background: #fff;
}

.cards h2 {
  margin: 0 0 0.35rem;
  font-size: 1.12rem;
}

.cards p {
  margin: 0;
  color: var(--ink);
}

.table-wrap {
  max-width: var(--wide);
  overflow-x: auto;
  margin: 1rem 0 0.4rem;
  border: 1px solid var(--line);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 36rem;
  font-size: 0.98rem;
}

caption {
  caption-side: bottom;
  text-align: left;
  padding: 0.7rem 0.9rem 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
}

th {
  background: var(--soft);
  color: var(--navy);
  font-weight: 680;
}

tr:last-child td {
  border-bottom: 0;
}

.steps {
  list-style: none;
  padding: 0;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 2.4rem;
  margin: 0.85rem 0;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.sources {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  background: var(--soft);
  border-top: 1px solid var(--line);
}

.footer-inner {
  padding: 1.8rem 0 2.4rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin-bottom: 0.9rem;
}

.footer-links a {
  color: var(--navy);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
  text-decoration-color: var(--blue);
}

.fine {
  margin: 0.4rem 0 0;
  max-width: 40rem;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (min-width: 800px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .header-inner,
  .footer-inner,
  .wrap {
    width: min(100% - 2rem, var(--wide));
  }

  .site-nav {
    gap: 0.25rem 0.75rem;
  }
}

.hero {
  padding: 2.2rem 0 0.4rem;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 0.6rem;
  max-width: 16ch;
}
.hero .dek {
  font-size: 1.25rem;
  max-width: 38rem;
  margin: 0 0 1.4rem;
}
.paths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0 0 1.2rem;
  padding: 0;
  list-style: none;
}
.paths a {
  display: block;
  text-decoration: none;
  background: var(--soft);
  border-top: 4px solid var(--orange);
  border-radius: 12px;
  padding: 1.1rem 1.15rem 1.15rem;
  color: var(--navy);
  min-height: 8.5rem;
}
.paths a:hover { background: #fff4ec; }
.paths strong { display: block; font-size: 1.15rem; margin-bottom: 0.35rem; }
.paths span { color: var(--muted); font-size: 0.98rem; }
.slim {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0.2rem 0 2rem;
}
@media (max-width: 800px) {
  .paths { grid-template-columns: 1fr; }
  .brand { font-size: 1.35rem; }
  .brand img { width: 60px; height: 60px; }
}