:root{--ink:#142435;--muted:#526273;--orange:#ed711c;--line:#d8dfe5;--wash:#f1f5f8;--paper:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 "Segoe UI",Arial,sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:#9d4100}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(2.5rem,4.2vw,3.6rem);font-weight:720}h2{font-size:1.65rem}h3{font-size:1.2rem}p{margin-bottom:1em}a:focus-visible,summary:focus-visible{outline:3px solid #1667b7;outline-offset:5px}.wrap{width:min(1220px,calc(100% - 80px));margin-inline:auto}.skip{position:fixed;top:-80px;left:12px;z-index:20;background:var(--ink);color:white;padding:12px}.skip:focus{top:12px}header{padding:22px max(40px,calc((100% - 1320px)/2));display:flex;gap:36px;align-items:center;border-bottom:1px solid var(--line);background:white;position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:11px;font-size:25px;line-height:1;letter-spacing:-.05em;font-weight:750;text-decoration:none;white-space:nowrap}.brand-light{font-weight:400}.brand small{font-size:10px;letter-spacing:.16em;display:block;margin-top:8px;font-weight:600}.mark{background:var(--orange);display:grid;place-items:center;width:40px;height:44px;border-radius:5px;font-size:32px;line-height:1}.brand:hover{color:var(--ink)}header nav{display:flex;gap:28px;margin-left:auto}header nav a{font-size:15px;text-decoration:none;font-weight:600}.header-mail{background:var(--ink);color:white;font-size:15px;padding:12px 17px;border-radius:4px;text-decoration:none;white-space:nowrap}.header-mail span{margin-left:12px}.header-mail:hover{color:white;background:#254560}.eyebrow{font-size:12px;font-weight:650;letter-spacing:.12em;line-height:1.7;text-transform:uppercase}.intro{padding-top:55px;padding-bottom:38px}.intro>.eyebrow{color:#a34b0c;margin-bottom:16px}.intro h1 span{font-weight:400}.lead{font-size:20px;line-height:1.6;color:var(--muted);max-width:710px;margin-top:20px}.intro .lead{max-width:690px;margin-bottom:0}.start-layout{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:42px;align-items:start}.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.problem{border-top:2px solid var(--ink);display:flex;gap:17px;text-decoration:none;padding:25px 0 30px}.number{font-size:14px;color:#a34b0c;font-weight:700;margin-top:3px}.problem .eyebrow{color:var(--muted);font-size:11px}.problem h2{font-size:23px;margin-top:9px;max-width:310px}.problem p{font-size:15px;color:var(--muted);margin:13px 0 17px;line-height:1.65}.read{font-size:14px;font-weight:650}.read span{margin-left:8px}.problem:hover h2{text-decoration:underline;text-underline-offset:5px}.start-aside{background:var(--wash);border-top:4px solid var(--orange)}.first-step,.direct-help{padding:28px}.first-step h2,.direct-help h2{font-size:25px;margin:15px 0}.first-step ol{padding-left:20px;font-size:15px;line-height:1.65}.first-step li{padding-bottom:10px}.first-step p,.direct-help p{font-size:14px;color:var(--muted);margin-top:20px;margin-bottom:0}.direct-help{border-top:1px solid var(--line)}.direct-help>a{font-size:18px;font-weight:700}.preparation{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:45px;padding-block:50px;margin-top:32px;border-top:1px solid var(--line)}.preparation h2{font-size:29px;margin-top:12px}.prep-column h3{margin-top:5px;margin-bottom:14px}.prep-column p{font-size:16px;color:var(--muted)}.contact-band{margin:30px 0 50px;background:var(--ink);color:white;padding:42px;display:grid;grid-template-columns:1.15fr 1fr;gap:55px;border-radius:5px}.contact-band .eyebrow{color:#ffad70}.contact-band h2{font-size:32px;margin:13px 0 17px}.contact-band p{color:#c7d4df;font-size:16px;max-width:465px}.contact-band .email{font-size:clamp(22px,2.5vw,30px);font-weight:650;color:white;display:inline-block;margin:11px 0 13px;text-decoration-color:var(--orange);text-decoration-thickness:2px}.contact-band>div:last-child p{font-size:14px;max-width:360px}.contact-band>div:last-child>a:last-child{color:#ffad70;font-size:15px}.source-note{display:grid;grid-template-columns:180px 1fr;gap:35px;padding-bottom:50px}.source-note p{font-size:15px;color:var(--muted);max-width:760px}footer{border-top:1px solid var(--line);padding:34px max(40px,calc((100% - 1220px)/2));background:var(--wash)}.footer-main{display:flex;gap:30px;align-items:center;justify-content:space-between}.footer-main .brand{font-size:22px}.footer-main .mark{width:31px;height:35px;font-size:25px}.footer-main p{font-size:14px;max-width:400px;margin:0;color:var(--muted)}.footer-main>a:last-child{font-size:15px;font-weight:600}.footer-fine{border-top:1px solid var(--line);margin-top:25px;padding-top:22px;display:flex;justify-content:space-between;gap:40px;font-size:12px;color:var(--muted)}.footer-fine p:first-child{max-width:670px}.crumb{display:flex;gap:12px;font-size:14px;color:var(--muted);margin:30px 0}.article-layout{display:grid;grid-template-columns:235px minmax(0,790px);gap:70px;justify-content:space-between}.article-side{position:sticky;top:130px;align-self:start}.article-side .eyebrow{color:#a34b0c;margin-bottom:22px}.article-side nav{display:flex;flex-direction:column;gap:16px}.article-side nav a{font-size:14px;text-decoration:none;border-left:2px solid var(--line);padding-left:14px;line-height:1.5}.side-mail{font-size:15px;font-weight:650;display:inline-block;margin-top:30px}article>h1{font-size:clamp(2.2rem,4vw,3.2rem);margin-top:14px}article .lead{font-size:20px}article .meta{font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:25px;margin-bottom:38px}article section{margin-bottom:40px}article h2{font-size:27px;margin:8px 0 20px}article p,article li{font-size:17px;color:#34495b}article li{padding-bottom:10px}article ul{padding-left:22px}.section-index{font-size:13px;font-weight:700;color:#a34b0c}.sources{padding:26px;background:var(--wash);border-left:3px solid var(--orange)}.sources h2{font-size:23px;margin:0 0 15px}.sources p,.sources li{font-size:14px}.sources p{margin-bottom:0}.next{border-block:1px solid var(--line);display:block;padding:22px 0;text-decoration:none}.next small{display:block;font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}.next strong{font-size:20px}.article-wrap .contact-band{margin-top:65px}.page-heading{padding:15px 0 40px}.page-heading h1{margin-top:16px}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 32px}.resource{border-top:1px solid var(--line);padding:25px 0;text-decoration:none}.resource .eyebrow{color:#a34b0c;font-size:11px}.resource h2{font-size:22px;margin:13px 0}.resource h2 span{font-size:18px}.resource p{font-size:15px;color:var(--muted)}.about-copy{max-width:780px}.about-copy section{margin-bottom:36px}.about-copy h2{font-size:26px;margin-bottom:18px}.about-copy p{color:#34495b}.notfound{padding-block:90px;min-height:60vh}.notfound h1{margin:20px 0}.button{display:inline-block;background:var(--ink);color:white;padding:13px 22px;margin-top:15px;border-radius:4px;text-decoration:none}
@media(max-width:1050px){header{gap:23px;padding:20px 28px}header nav{gap:20px}.wrap{width:calc(100% - 56px)}.start-layout{gap:27px;grid-template-columns:minmax(0,1fr) 260px}.guide-list{grid-template-columns:1fr}.problem h2{max-width:none}.first-step,.direct-help{padding:24px}.article-layout{grid-template-columns:190px minmax(0,1fr);gap:40px}.contact-band{gap:30px;padding:32px}.preparation{gap:28px}.footer-main{flex-wrap:wrap}.resource-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){header{flex-wrap:wrap;gap:17px;padding:16px 22px}.brand{font-size:23px}.header-mail{margin-left:auto;font-size:13px;padding:10px 12px}.header-mail span{display:none}header nav{order:3;width:100%;justify-content:center;border-top:1px solid var(--line);padding-top:12px;margin:0;gap:40px}.wrap{width:calc(100% - 40px)}.intro{padding-top:34px;padding-bottom:30px}.intro h1{font-size:41px}.lead{font-size:18px}.start-layout{grid-template-columns:1fr}.guide-list{grid-template-columns:1fr 1fr;gap:0 22px}.problem{gap:10px}.problem h2{font-size:21px}.start-aside{display:grid;grid-template-columns:1fr 1fr}.direct-help{border-top:0;border-left:1px solid var(--line)}.preparation{grid-template-columns:1fr 1fr;gap:24px;padding-block:35px}.preparation>div:first-child{grid-column:span 2}.contact-band{grid-template-columns:1fr;gap:13px;padding:28px}.contact-band h2{font-size:29px}.contact-band .email{margin-top:0}.source-note{grid-template-columns:1fr;gap:13px}.article-layout{grid-template-columns:1fr;gap:30px}.article-side{position:static}.article-side nav{flex-direction:row;flex-wrap:wrap;gap:12px 18px}.article-side nav a{border:0;padding:0;text-decoration:underline}.article-side .side-mail{display:none}.article-side .eyebrow{margin-bottom:12px}article>h1{font-size:37px}article h2{font-size:25px}.footer-fine{display:block}.footer-main{gap:20px}.footer-main p{order:3;max-width:100%;flex-basis:100%}footer{padding:28px 22px}.resource-grid{gap:0 25px}html{scroll-padding-top:160px}}
@media(max-width:450px){header{padding-inline:16px;gap:10px}.brand{font-size:21px;gap:8px}.brand small{font-size:9px}.mark{width:32px;height:38px;font-size:28px}.header-mail{font-size:12px;padding:10px}.wrap{width:calc(100% - 32px)}.intro h1{font-size:38px}.guide-list{grid-template-columns:1fr}.problem{gap:16px;padding:22px 0}.problem h2{font-size:24px}.problem .eyebrow{font-size:12px}.problem p{font-size:16px}.start-aside{grid-template-columns:1fr}.direct-help{border-left:0;border-top:1px solid var(--line)}.preparation{grid-template-columns:1fr;gap:17px}.preparation>div:first-child{grid-column:auto;margin-bottom:5px}.preparation h2{font-size:28px}.resource-grid{grid-template-columns:1fr}.contact-band{padding:26px 22px}.contact-band .email{font-size:25px}.page-heading h1{font-size:36px}article>h1{font-size:34px}.footer-main>a:last-child{font-size:14px}.footer-main .brand{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}


/* Modern KeychainX resource styling — 7 October 2026 */
:root{--ink:#14294d;--muted:#526581;--line:#d5e1f4;--paper:#f5f8ff;--wash:#edf3ff;--lime:#b9e4ff;--green:#2456ad}
body{background:#f5f8ff;color:#14294d}a:hover{color:#2456ad}a:focus-visible,button:focus-visible,input:focus-visible{outline-color:#3474d9}
header{background:#0b2454;color:#e5efff;border-color:#ffffff20;box-shadow:0 8px 28px #10295512}
header nav{gap:5px;padding:5px;border:1px solid #adcfff30;border-radius:999px;background:#ffffff08}
header nav a{padding:10px 18px;border-radius:999px;min-height:44px;display:flex;align-items:center;transition:background .2s,color .2s}
header nav a:hover{color:#fff;background:#ffffff1c}header nav a[aria-current]{box-shadow:none;background:#fff;color:#123872}
header .brand:hover{color:#fff}.branddot{color:#a5d8ff}.brandmark{background:#b9e4ff;color:#103367;border-radius:12px}
.expert-link,.header-mail{background:#c2e4ff;color:#102b53;border:0;border-radius:999px;min-height:44px;align-items:center;justify-content:center}
.expert-link:hover,.header-mail:hover{background:#fff;color:#102b53}.button{border-radius:999px;transition:transform .2s,box-shadow .2s}
.button:hover{transform:translateY(-3px);box-shadow:0 8px 22px #0002}.guide-card,.resource,.problem{background:#fff;border:1px solid #d5e1f4;border-radius:20px;box-shadow:0 5px 16px #1b3c7206;transition:transform .2s,box-shadow .2s,border-color .2s}
.guide-card:hover,.problem:hover,.resource:hover{transform:translateY(-5px);border-color:#7ca9ec;box-shadow:0 16px 30px #163b7414;color:#14294d}
.help-block,.contact-band{background:linear-gradient(120deg,#102b60,#285eac);border-radius:24px;box-shadow:0 18px 40px #183d7617}
.help-block .eyebrow,.contact-band .eyebrow,.contact-band>div:last-child>a:last-child{color:#b9e4ff}.contact-band .email{text-decoration-color:#b9e4ff}
footer{background:#eaf1ff}.note,.sources{background:#eaf2ff;border-color:#6c9be3}.codeblock{background:#0b2454;border-radius:14px}.codeblock pre{color:#d8edff}
article code:not(pre code){background:#e4edff;color:#244b90}article p a{color:#2456ad}.searchbox{border-radius:12px}.filter{border-radius:999px}.filter.active{background:#143f83}
.article-grid article,.article-layout article,.about-body,.about-copy{background:#fff;padding:32px;border:1px solid #d5e1f4;border-radius:24px;max-width:none}
@media(hover:none){.guide-card:hover,.problem:hover,.resource:hover{transform:none}}
@media(prefers-reduced-motion:no-preference){@keyframes resourceFloat{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-9px) rotate(1deg)}}@keyframes resourceEnter{from{opacity:.7;transform:translateY(10px)}to{opacity:1;transform:none}}}
@media(max-width:780px){header nav{gap:3px;border-top:1px solid #adcfff30;padding:5px}header nav a{padding:8px 13px;font-size:13px}.article-grid article,.article-layout article,.about-body,.about-copy{padding:22px}.navwrap{gap:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

:root{--orange:#ffb963}.mark{color:#53300b;border-radius:12px;background:#ffbf70}
.intro{position:relative;isolation:isolate;background:linear-gradient(120deg,#0b2454,#285eac);box-shadow:0 0 0 100vmax #0b2454;clip-path:inset(0 -100vmax);color:#fff;padding:65px 370px 65px 0;min-height:370px}
.intro>.eyebrow{color:#bbdcff}.intro .lead{color:#c7dbf7}.intro h1 span{color:#b9deff}.intro::after{content:"";position:absolute;right:25px;top:40px;width:300px;height:270px;background:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20300%20240%22%3E%3Ccircle%20cx%3D%22150%22%20cy%3D%22120%22%20r%3D%22102%22%20fill%3D%22%23234b8e%22%2F%3E%3Cg%20stroke%3D%22%23a8ddff%22%20stroke-width%3D%224%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Crect%20x%3D%2265%22%20y%3D%2283%22%20width%3D%22175%22%20height%3D%22118%22%20rx%3D%2220%22%20fill%3D%22%23f2f7ff%22%2F%3E%3Cpath%20d%3D%22M82%2083V58h130v25%22%20fill%3D%22%23b3d6ff%22%2F%3E%3Crect%20x%3D%22189%22%20y%3D%22122%22%20width%3D%2260%22%20height%3D%2240%22%20rx%3D%2212%22%20fill%3D%22%233769be%22%2F%3E%3Ccircle%20cx%3D%22205%22%20cy%3D%22142%22%20r%3D%224%22%20fill%3D%22%23fff%22%2F%3E%3Ccircle%20cx%3D%22143%22%20cy%3D%2272%22%20r%3D%2243%22%20fill%3D%22%23ffb963%22%20stroke%3D%22%23ffdfb2%22%2F%3E%3Ctext%20x%3D%22143%22%20y%3D%2290%22%20text-anchor%3D%22middle%22%20font-size%3D%2255%22%20font-family%3D%22Arial%22%20fill%3D%22%23513016%22%20stroke%3D%22none%22%3E%E2%82%BF%3C%2Ftext%3E%3C%2Fg%3E%3Ccircle%20cx%3D%22260%22%20cy%3D%2255%22%20r%3D%226%22%20fill%3D%22%2391ceff%22%2F%3E%3Ccircle%20cx%3D%2243%22%20cy%3D%22175%22%20r%3D%224%22%20fill%3D%22%2391ceff%22%2F%3E%3C%2Fsvg%3E") center/contain no-repeat;pointer-events:none}
.start-layout{padding-top:40px;gap:26px}.guide-list{gap:18px}.problem{padding:25px 22px}.problem h2{font-size:22px}.problem .number{display:grid;place-items:center;flex-shrink:0;width:39px;height:39px;margin:0;background:#e7f0ff;color:#2a5ba9;border-radius:12px}.problem .read{color:#2456ad}
.start-aside{background:#e7f0ff;border:1px solid #cddcf5;border-radius:22px;overflow:hidden}.first-step,.direct-help{padding:25px}.direct-help>a{font-size:17px;color:#2456ad}.preparation{padding:35px;border:1px solid #d5e1f4;border-radius:22px;background:#fff;margin-top:36px}
.resource-grid{gap:20px}.resource{padding:25px}.resource .eyebrow,.number,.section-index,.article-side .eyebrow{color:#315c9f}.contact-band{position:relative;overflow:hidden}.contact-band::after{content:"";position:absolute;width:220px;height:220px;border:1px solid #b2d5ff30;border-radius:50%;right:-100px;top:-70px;pointer-events:none}
@media(prefers-reduced-motion:no-preference){.intro::after{animation:resourceFloat 8s ease-in-out infinite}.intro h1{animation:resourceEnter .5s ease-out both}}
@media(max-width:1050px){.intro{padding-right:300px}.intro::after{width:265px;right:0}.problem{padding:23px 20px}}
@media(max-width:760px){.intro{padding:38px 0 250px;min-height:0}.intro::after{width:260px;height:230px;top:auto;bottom:10px;right:calc(50% - 130px)}.intro h1{font-size:clamp(2.4rem,7vw,3.4rem)}.guide-list{gap:16px}.preparation{padding:25px}.start-layout{padding-top:28px}}
@media(max-width:450px){.problem{padding:24px 20px}.problem h2{font-size:23px}header nav a{padding-inline:18px}.preparation{padding:23px}}