:root {
  --i2fa-navy-950: #06152f;
  --i2fa-navy-900: #082149;
  --i2fa-navy-800: #0b326a;
  --i2fa-blue: #1464ff;
  --i2fa-blue-dark: #0b4ed0;
  --i2fa-teal: #14d7bd;
  --i2fa-ink: #10213d;
  --i2fa-muted: #586984;
  --i2fa-line: #dce5f1;
  --i2fa-soft: #f3f7fc;
  --i2fa-white: #ffffff;
  --i2fa-radius: 20px;
  --i2fa-shadow: 0 20px 60px rgba(12, 42, 88, 0.12);
}

html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--i2fa-white);
  color: var(--i2fa-ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body * { box-sizing: border-box; }
body img { max-width: 100%; height: auto; }
body a { color: inherit; }
.i2fa-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.i2fa-skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 9999; padding: 10px 14px;
  transform: translateY(-150%); background: #fff; color: var(--i2fa-navy-950); border-radius: 8px;
}
.i2fa-skip-link:focus { transform: none; }

.i2fa-header {
  position: relative; z-index: 100; background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(16,33,61,.08); backdrop-filter: blur(14px);
}
.i2fa-header__inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.i2fa-brand { display: inline-flex; align-items: center; width: 212px; line-height: 0; }
.i2fa-brand img { width: 100%; }
.i2fa-nav { display: flex; align-items: center; gap: 31px; }
.i2fa-nav a { position: relative; color: #2c3f5c; font-size: 15px; font-weight: 650; text-decoration: none; }
.i2fa-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--i2fa-teal); transition: right .2s ease; }
.i2fa-nav a:hover::after, .i2fa-nav a:focus-visible::after { right: 0; }
.i2fa-menu-toggle { display: none; }

.i2fa-hero { position: relative; overflow: hidden; background: linear-gradient(140deg, #f8fbff 0%, #eef5ff 58%, #ecfbf8 100%); }
.i2fa-hero::before { content: ""; position: absolute; inset: 0; opacity: .33; background-image: radial-gradient(#7394c1 1px, transparent 1px); background-size: 28px 28px; mask-image: linear-gradient(to right, transparent, #000 45%, #000); }
.i2fa-hero__grid { position: relative; min-height: 655px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 74px; padding-block: 82px 90px; }
.i2fa-eyebrow, .i2fa-kicker { margin: 0 0 18px; color: var(--i2fa-blue-dark); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.i2fa-eyebrow { display: flex; align-items: center; gap: 10px; }
.i2fa-eyebrow span { width: 28px; height: 2px; background: var(--i2fa-teal); }
.i2fa-hero h1 { margin: 0; max-width: 680px; color: var(--i2fa-navy-950); font-size: clamp(46px, 5.15vw, 70px); line-height: 1.04; letter-spacing: -.052em; }
.i2fa-hero h1 em { color: var(--i2fa-blue); font-style: normal; }
.i2fa-hero__lede { max-width: 610px; margin: 28px 0 0; color: #4a5f7f; font-size: 20px; line-height: 1.62; }
.i2fa-button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 35px; }
.i2fa-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 52px; padding: 12px 22px; border-radius: 11px; font-size: 15px; font-weight: 750; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.i2fa-button:hover { transform: translateY(-2px); }
.i2fa-button--primary { background: var(--i2fa-blue); color: #fff; box-shadow: 0 12px 24px rgba(20,100,255,.23); }
.i2fa-button--primary:hover { background: var(--i2fa-blue-dark); color: #fff; }
.i2fa-button--secondary { border: 1px solid #bbcadf; background: rgba(255,255,255,.72); color: var(--i2fa-navy-900); }
.i2fa-button--secondary:hover { background: #fff; color: var(--i2fa-navy-900); }
.i2fa-hero__note { display: flex; align-items: center; gap: 9px; margin: 22px 0 0; color: #62718a; font-size: 13px; font-weight: 600; }
.i2fa-hero__note span { display: grid; width: 19px; height: 19px; place-items: center; border-radius: 50%; background: #c9f5ec; color: #087d6b; font-size: 11px; }

.i2fa-hero__visual { position: relative; min-height: 440px; display: grid; place-items: center; }
.i2fa-orbit { position: absolute; border: 1px solid rgba(20,100,255,.18); border-radius: 50%; }
.i2fa-orbit::before, .i2fa-orbit::after { content: ""; position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--i2fa-teal); box-shadow: 0 0 0 7px rgba(20,215,189,.11); }
.i2fa-orbit--outer { width: 440px; height: 440px; }
.i2fa-orbit--outer::before { top: 38px; right: 61px; }
.i2fa-orbit--outer::after { left: 13px; bottom: 118px; background: var(--i2fa-blue); box-shadow: 0 0 0 7px rgba(20,100,255,.10); }
.i2fa-orbit--inner { width: 326px; height: 326px; border-style: dashed; }
.i2fa-orbit--inner::before { right: -4px; bottom: 100px; }
.i2fa-orbit--inner::after { display: none; }
.i2fa-login-card { position: relative; z-index: 3; width: 310px; padding: 22px 27px 26px; border: 1px solid rgba(255,255,255,.82); border-radius: 23px; background: rgba(255,255,255,.93); box-shadow: 0 30px 70px rgba(8,33,73,.18); text-align: center; transform: rotate(-1.5deg); }
.i2fa-login-card__top { display: flex; gap: 5px; padding-bottom: 21px; border-bottom: 1px solid #e7edf5; }
.i2fa-login-card__top span { width: 6px; height: 6px; border-radius: 50%; background: #c6d1df; }
.i2fa-login-card__icon { display: grid; width: 66px; height: 66px; margin: 25px auto 14px; place-items: center; border-radius: 20px; background: linear-gradient(145deg, var(--i2fa-teal), #0dbba3); color: #fff; font-size: 30px; font-weight: 900; box-shadow: 0 12px 25px rgba(20,215,189,.27); }
.i2fa-login-card strong { display: block; color: var(--i2fa-navy-950); font-size: 20px; }
.i2fa-login-card p { margin: 8px auto 20px; color: #66758b; font-size: 13px; line-height: 1.5; }
.i2fa-code { display: flex; justify-content: center; gap: 7px; }
.i2fa-code span { display: inline-flex; padding: 7px 12px 9px; border-radius: 8px; background: #eef3f9; color: var(--i2fa-blue); font-size: 20px; letter-spacing: 5px; line-height: 1; }
.i2fa-float-chip { position: absolute; z-index: 4; display: flex; align-items: center; gap: 9px; padding: 11px 15px; border: 1px solid rgba(255,255,255,.9); border-radius: 12px; background: rgba(255,255,255,.93); box-shadow: 0 12px 30px rgba(8,33,73,.13); color: #263c5d; font-size: 12px; font-weight: 750; }
.i2fa-float-chip span { color: var(--i2fa-blue); }
.i2fa-float-chip--key { top: 68px; right: 0; }
.i2fa-float-chip--shield { bottom: 68px; left: 0; }
.i2fa-float-chip--shield span { display: grid; width: 21px; height: 21px; place-items: center; border-radius: 50%; background: #d8f8f2; color: #078c78; }

.i2fa-paths { padding: 105px 0 114px; background: #fff; }
.i2fa-section-heading { max-width: 730px; margin: 0 auto 48px; text-align: center; }
.i2fa-section-heading h2, .i2fa-compare h2, .i2fa-method h2, .i2fa-next h2 { margin: 0; color: var(--i2fa-navy-950); font-size: clamp(34px, 4vw, 48px); line-height: 1.14; letter-spacing: -.035em; }
.i2fa-section-heading > p:last-child { margin: 17px auto 0; color: var(--i2fa-muted); font-size: 18px; }
.i2fa-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.i2fa-path-card { min-height: 330px; padding: 27px 25px 25px; border: 1px solid var(--i2fa-line); border-radius: var(--i2fa-radius); background: #fff; color: inherit; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.i2fa-path-card:hover { transform: translateY(-5px); border-color: #b9cce8; box-shadow: var(--i2fa-shadow); }
.i2fa-path-card--featured { background: var(--i2fa-navy-950); border-color: var(--i2fa-navy-950); color: #fff; }
.i2fa-path-card__icon { display: grid; width: 49px; height: 49px; margin-bottom: 29px; place-items: center; border-radius: 14px; background: #edf3ff; color: var(--i2fa-blue); font-size: 20px; font-weight: 850; }
.i2fa-path-card--featured .i2fa-path-card__icon { background: rgba(20,215,189,.14); color: var(--i2fa-teal); }
.i2fa-path-card__label { margin: 0 0 6px; color: var(--i2fa-blue); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.i2fa-path-card--featured .i2fa-path-card__label { color: var(--i2fa-teal); }
.i2fa-path-card h3 { margin: 0; color: var(--i2fa-navy-950); font-size: 21px; line-height: 1.3; }
.i2fa-path-card--featured h3 { color: #fff; }
.i2fa-path-card > p:not(.i2fa-path-card__label) { margin: 13px 0 22px; color: var(--i2fa-muted); font-size: 14px; line-height: 1.65; }
.i2fa-path-card--featured > p:not(.i2fa-path-card__label) { color: #bdcbe0; }
.i2fa-text-link { color: var(--i2fa-blue); font-size: 13px; font-weight: 750; }
.i2fa-path-card--featured .i2fa-text-link { color: var(--i2fa-teal); }

.i2fa-compare { padding: 105px 0; background: var(--i2fa-soft); }
.i2fa-compare__grid { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 80px; }
.i2fa-compare__intro { max-width: 520px; margin: 25px 0 0; color: var(--i2fa-muted); font-size: 18px; }
.i2fa-compare__cards { display: grid; gap: 16px; }
.i2fa-compare__cards article { display: flex; gap: 20px; padding: 25px; border: 1px solid var(--i2fa-line); border-radius: 17px; background: #fff; box-shadow: 0 8px 25px rgba(12,42,88,.055); }
.i2fa-mini-icon { flex: 0 0 45px; display: grid; width: 45px; height: 45px; place-items: center; border-radius: 13px; background: #e8f0ff; color: var(--i2fa-blue); font-weight: 850; }
.i2fa-mini-icon--teal { background: #dff8f3; color: #078c78; }
.i2fa-compare__cards h3 { margin: 0 0 5px; color: var(--i2fa-navy-950); font-size: 18px; }
.i2fa-compare__cards p { margin: 0; color: var(--i2fa-muted); font-size: 14px; }

.i2fa-method { padding: 106px 0; background: var(--i2fa-navy-950); color: #fff; }
.i2fa-method__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.i2fa-method .i2fa-kicker { color: var(--i2fa-teal); }
.i2fa-method h2 { color: #fff; }
.i2fa-method__points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.i2fa-method__points strong { display: inline-block; margin-bottom: 22px; color: var(--i2fa-teal); font-size: 12px; letter-spacing: .12em; }
.i2fa-method__points h3 { margin: 0 0 9px; color: #fff; font-size: 17px; }
.i2fa-method__points p { margin: 0; color: #aebed5; font-size: 13px; line-height: 1.65; }

.i2fa-next { padding: 74px 0; background: linear-gradient(105deg, var(--i2fa-blue-dark), var(--i2fa-blue)); color: #fff; }
.i2fa-next__inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.i2fa-next .i2fa-kicker { color: #bcefe7; }
.i2fa-next h2 { color: #fff; font-size: clamp(30px, 3.4vw, 43px); }
.i2fa-next p:not(.i2fa-kicker) { max-width: 750px; margin: 13px 0 0; color: #dce8ff; }
.i2fa-button--light { flex: 0 0 auto; background: #fff; color: var(--i2fa-blue-dark); box-shadow: 0 12px 24px rgba(5,27,68,.18); }

.i2fa-footer { padding: 62px 0 25px; background: #041126; color: #fff; }
.i2fa-footer__top { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 45px; }
.i2fa-footer__brand img { width: 184px; filter: brightness(0) invert(1); }
.i2fa-footer__brand p { margin: 9px 0 0; color: #9fb0c8; font-size: 14px; }
.i2fa-footer__nav { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; }
.i2fa-footer__nav a { color: #c6d2e4; font-size: 13px; font-weight: 650; text-decoration: none; }
.i2fa-footer__nav a:hover { color: var(--i2fa-teal); }
.i2fa-footer__bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 21px; border-top: 1px solid rgba(255,255,255,.11); }
.i2fa-footer__bottom p { margin: 0; color: #7f93af; font-size: 11px; }

.i2fa-page-main { background: var(--i2fa-soft); }
.i2fa-page-hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 73px;
  background: linear-gradient(135deg, #f7faff 0%, #edf4ff 62%, #eafbf7 100%);
  border-bottom: 1px solid var(--i2fa-line);
}
.i2fa-page-hero::after {
  content: "";
  position: absolute;
  width: 310px;
  height: 310px;
  top: -180px;
  right: 7%;
  border: 1px solid rgba(20,100,255,.17);
  border-radius: 50%;
  box-shadow: 0 0 0 52px rgba(20,100,255,.035), 0 0 0 104px rgba(20,215,189,.025);
}
.i2fa-page-hero__inner { position: relative; z-index: 1; }
.i2fa-page-hero h1 {
  max-width: 820px;
  margin: 0;
  color: var(--i2fa-navy-950);
  font-size: clamp(42px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.045em;
}
.i2fa-page-layout { padding-block: 66px 95px; }
.i2fa-prose {
  max-width: 820px;
  margin-inline: auto;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid var(--i2fa-line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(12,42,88,.075);
}
.i2fa-prose > *:first-child { margin-top: 0; }
.i2fa-prose > *:last-child { margin-bottom: 0; }
.i2fa-prose h2 {
  margin: 2.1em 0 .6em;
  color: var(--i2fa-navy-950);
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -.025em;
}
.i2fa-prose h3 { margin: 1.8em 0 .45em; color: var(--i2fa-navy-900); font-size: 21px; line-height: 1.3; }
.i2fa-prose p, .i2fa-prose li { color: #425671; }
.i2fa-prose p { margin: 0 0 1.2em; }
.i2fa-prose ul { margin: 0 0 1.5em; padding-left: 1.25em; }
.i2fa-prose li { margin-bottom: .5em; }
.i2fa-prose a { color: var(--i2fa-blue-dark); text-underline-offset: 3px; }
.i2fa-prose a.i2fa-button--primary,
.i2fa-prose a.i2fa-button--primary:visited,
.i2fa-prose a.i2fa-button--primary:hover,
.i2fa-prose a.i2fa-button--primary:focus { color: #fff; text-decoration: none; }
.i2fa-prose strong { color: var(--i2fa-ink); }
.i2fa-prose .i2fa-lede { color: #2e4667; font-size: 20px; line-height: 1.65; }
.i2fa-prose .i2fa-guide-image {
  width: min(100%, 540px);
  margin: 24px auto 28px;
}
.i2fa-prose .i2fa-guide-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #dce8f6;
  border-radius: 18px;
  box-shadow: 0 18px 44px rgba(6, 21, 47, 0.1);
}
.i2fa-prose .i2fa-notice {
  margin: 1.8em 0;
  padding: 18px 20px;
  border-left: 4px solid var(--i2fa-teal);
  border-radius: 0 12px 12px 0;
  background: #edf9f7;
  color: #274f55;
}
.i2fa-prose .i2fa-warning {
  margin: 1.8em 0;
  padding: 18px 20px;
  border-left: 4px solid var(--i2fa-blue);
  border-radius: 0 12px 12px 0;
  background: #eef4ff;
  color: #28476f;
}
.i2fa-prose .fluentform { margin-top: 30px; }
.i2fa-prose .ff-el-form-control { border-color: #cbd7e7 !important; border-radius: 9px !important; }
.i2fa-prose .ff-btn-submit { border: 0 !important; border-radius: 9px !important; background: rgba(20,100,255,1) !important; color: #fff !important; font-weight: 750 !important; }
.i2fa-prose .ff-btn-submit:hover, .i2fa-prose .ff-btn-submit:focus { background: rgba(11,78,208,1) !important; }
.i2fa-prose .i2fa-toc {
  margin: 2em 0;
  padding: 22px 24px;
  border: 1px solid #d6e2f1;
  border-radius: 15px;
  background: #f7faff;
}
.i2fa-prose .i2fa-toc strong { display: block; margin-bottom: 9px; }
.i2fa-prose .i2fa-toc ol { columns: 2; column-gap: 35px; margin: 0; padding-left: 1.2em; }
.i2fa-prose .i2fa-toc li { break-inside: avoid; margin-bottom: 5px; font-size: 14px; }
.i2fa-prose .i2fa-toc a { text-decoration: none; }
.i2fa-prose .i2fa-toc a:hover { text-decoration: underline; }
.i2fa-prose .i2fa-guide-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: -4px 0 28px; color: #687993; font-size: 13px; }
.i2fa-table-wrap { overflow-x: auto; margin: 1.7em 0 2em; border: 1px solid var(--i2fa-line); border-radius: 14px; }
.i2fa-table { width: 100%; min-width: 700px; border: 0; border-collapse: collapse; background: #fff; font-size: 14px; }
.i2fa-table th, .i2fa-table td { padding: 15px 16px; border: 0; border-bottom: 1px solid var(--i2fa-line); text-align: left; vertical-align: top; }
.i2fa-table th { background: var(--i2fa-navy-950); color: #fff; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.i2fa-table tr:last-child td { border-bottom: 0; }
.i2fa-table td:first-child { color: var(--i2fa-ink); font-weight: 750; }
.i2fa-table .i2fa-strength { white-space: nowrap; color: var(--i2fa-blue-dark); font-weight: 750; }
.i2fa-steps { counter-reset: i2fa-steps; margin: 1.7em 0 2em; }
.i2fa-step { position: relative; min-height: 54px; margin: 0 0 18px; padding-left: 69px; }
.i2fa-step::before { counter-increment: i2fa-steps; content: counter(i2fa-steps); position: absolute; left: 0; top: 0; display: grid; width: 46px; height: 46px; place-items: center; border-radius: 14px; background: #e8f0ff; color: var(--i2fa-blue); font-weight: 850; }
.i2fa-step h3 { margin: 0 0 3px; font-size: 18px; }
.i2fa-step p { margin: 0; font-size: 15px; }
#faq {
  margin-top: 2.6em;
  padding-top: 1.75em;
  border-top: 2px solid #c8d8ec;
  text-align: center;
}
.i2fa-prose .i2fa-faq-hint { margin: -2px 0 24px; color: #6b7c94; font-size: 14px; text-align: center; }
.i2fa-faq { margin-top: 0; padding-bottom: 30px; border-bottom: 2px solid #c8d8ec; }
.i2fa-faq details {
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid #d3dfef;
  border-left: 4px solid var(--i2fa-blue);
  border-radius: 13px;
  background: #f8fbff;
  box-shadow: 0 5px 16px rgba(12,42,88,.06);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.i2fa-faq details:hover { border-color: #a9c2e5; border-left-color: var(--i2fa-blue); box-shadow: 0 9px 24px rgba(12,42,88,.10); }
.i2fa-faq details[open] { border-left-color: var(--i2fa-teal); background: #fff; box-shadow: 0 10px 28px rgba(12,42,88,.11); }
.i2fa-faq summary {
  position: relative;
  padding: 19px 58px 19px 20px;
  color: var(--i2fa-navy-950);
  font-weight: 780;
  cursor: pointer;
  list-style: none;
}
.i2fa-faq summary::-webkit-details-marker { display: none; }
.i2fa-faq summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  transform: translateY(-50%);
  border-radius: 50%;
  background: #e4edff;
  color: var(--i2fa-blue-dark);
  font-size: 20px;
  line-height: 1;
}
.i2fa-faq details[open] summary::after { content: "−"; background: #dff8f3; color: #087d6b; }
.i2fa-faq details p { padding: 0 58px 20px 20px; margin: -2px 0 0; color: #425671; font-size: 15px; }
.i2fa-prose .i2fa-sources-heading { margin-top: 38px; font-size: 20px; }
.i2fa-sources { padding-left: 1.15em; font-size: 13px; line-height: 1.5; }
.i2fa-sources li { margin-bottom: 5px; }
.i2fa-prose .i2fa-source-note { color: #687993; font-size: 12px; line-height: 1.55; }

@media (max-width: 1020px) {
  .i2fa-nav { gap: 19px; }
  .i2fa-hero__grid { grid-template-columns: 1fr 1fr; gap: 35px; }
  .i2fa-card-grid { grid-template-columns: repeat(2, 1fr); }
  .i2fa-method__grid { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 780px) {
  .i2fa-shell { width: min(100% - 34px, 680px); }
  .i2fa-header__inner { min-height: 72px; }
  .i2fa-brand { width: 177px; }
  .i2fa-menu-toggle { display: inline-flex; align-items: center; gap: 9px; padding: 8px 10px; border: 0; background: transparent; color: var(--i2fa-navy-950); font: inherit; font-size: 13px; font-weight: 750; }
  .i2fa-menu-toggle__icon { display: grid; gap: 3px; }
  .i2fa-menu-toggle__icon span { width: 19px; height: 2px; background: currentColor; }
  .i2fa-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 15px 22px 22px; border-bottom: 1px solid var(--i2fa-line); background: #fff; box-shadow: 0 18px 30px rgba(8,33,73,.12); }
  .i2fa-nav.is-open { display: grid; gap: 2px; }
  .i2fa-nav a { padding: 10px 5px; }
  .i2fa-nav a::after { display: none; }
  .i2fa-hero__grid { grid-template-columns: 1fr; min-height: 0; padding-block: 67px 70px; }
  .i2fa-hero h1 { font-size: clamp(42px, 12vw, 61px); }
  .i2fa-hero__lede { font-size: 18px; }
  .i2fa-hero__visual { min-height: 390px; }
  .i2fa-orbit--outer { width: 360px; height: 360px; }
  .i2fa-orbit--inner { width: 280px; height: 280px; }
  .i2fa-float-chip--key { right: 4%; }
  .i2fa-float-chip--shield { left: 4%; }
  .i2fa-paths, .i2fa-compare, .i2fa-method { padding-block: 78px; }
  .i2fa-compare__grid { grid-template-columns: 1fr; gap: 45px; }
  .i2fa-method__points { grid-template-columns: 1fr; }
  .i2fa-next__inner { align-items: flex-start; flex-direction: column; }
  .i2fa-footer__top, .i2fa-footer__bottom { flex-direction: column; }
}

@media (max-width: 520px) {
  .i2fa-shell { width: min(100% - 28px, 480px); }
  .i2fa-hero__grid { padding-top: 52px; }
  .i2fa-hero h1 { font-size: 42px; }
  .i2fa-button-row { display: grid; }
  .i2fa-card-grid { grid-template-columns: 1fr; }
  .i2fa-path-card { min-height: 0; }
  .i2fa-hero__visual { min-height: 340px; transform: scale(.88); margin-inline: -20px; }
  .i2fa-login-card { width: 285px; }
  .i2fa-orbit--outer { width: 335px; height: 335px; }
  .i2fa-float-chip--key { top: 37px; right: -2px; }
  .i2fa-float-chip--shield { bottom: 36px; left: -3px; }
  .i2fa-footer__nav { display: grid; grid-template-columns: 1fr 1fr; }
  .i2fa-page-hero { padding-block: 54px; }
  .i2fa-page-layout { padding-block: 35px 65px; }
  .i2fa-prose { padding: 26px 21px; border-radius: 16px; }
  .i2fa-prose .i2fa-toc ol { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}