.b404{position:relative;overflow:hidden;background:#071f28;color:#f7fbfa;border-top:1px solid rgba(255,255,255,.08);isolation:isolate}.b404:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 72% 18%,rgba(62,214,181,.12),transparent 32%),linear-gradient(135deg,rgba(255,255,255,.02),transparent 48%);pointer-events:none}.b404-orbit{position:absolute;border:1px solid rgba(78,223,190,.13);border-radius:50%;pointer-events:none}.b404-orbit-one{width:480px;height:480px;right:-180px;top:-210px}.b404-orbit-two{width:240px;height:240px;right:95px;top:-95px}.b404-shell{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.72fr);gap:clamp(48px,7vw,110px);align-items:center;min-height:calc(100svh - 90px);padding-top:clamp(72px,9vw,132px);padding-bottom:clamp(72px,9vw,132px)}.b404-main{max-width:790px}.b404-code{display:flex;align-items:center;gap:14px;margin-bottom:24px;font-size:clamp(58px,8vw,112px);font-weight:800;line-height:.8;letter-spacing:-.08em;color:rgba(255,255,255,.1)}.b404-code i{width:clamp(36px,5vw,70px);height:clamp(36px,5vw,70px);border-radius:50%;background:linear-gradient(145deg,#55e0bf,#25bc9d);box-shadow:0 0 0 12px rgba(66,215,181,.08);position:relative}.b404-code i:after{content:"";position:absolute;inset:35%;border-radius:50%;background:#08242c}.b404-kicker,.b404-guide-kicker,.b404-section-head span{display:block;color:#51d9b8;font-size:11px;font-weight:800;letter-spacing:.19em;text-transform:uppercase}.b404 h1{max-width:720px;margin:15px 0 20px;font-size:clamp(44px,5.8vw,82px);line-height:.98;letter-spacing:-.055em;color:#fff}.b404-main>p{max-width:660px;margin:0;color:rgba(228,241,239,.72);font-size:clamp(16px,1.3vw,19px);line-height:1.75}.b404-search{max-width:690px;margin-top:38px}.b404-search>label{display:block;margin-bottom:10px;color:rgba(255,255,255,.62);font-size:12px;font-weight:700}.b404-search-row{display:grid;grid-template-columns:minmax(0,1fr) auto;padding:7px;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:rgba(255,255,255,.055);box-shadow:0 22px 55px rgba(0,0,0,.14)}.b404-search input{min-width:0;height:52px;padding:0 17px;border:0!important;outline:0;background:transparent!important;color:#fff!important;font-size:16px;box-shadow:none!important}.b404-search input::placeholder{color:rgba(255,255,255,.42)}.b404-search button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-width:126px;height:52px;padding:0 18px;border:0;border-radius:12px;background:#55dfbe;color:#062029;font-weight:800;cursor:pointer;transition:transform .25s ease,background .25s ease}.b404-search button:hover{transform:translateY(-2px);background:#72e8cb}.b404-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:24px}.b404-actions a,.b404-actions button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:52px;padding:0 20px;border-radius:13px;font:inherit;font-size:14px;font-weight:800;text-decoration:none;cursor:pointer;transition:transform .25s ease,border-color .25s ease,background .25s ease}.b404-primary{border:1px solid #fff;background:#fff;color:#09252e}.b404-secondary,.b404-support{border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.045);color:#fff}.b404-actions a:hover,.b404-actions button:hover{transform:translateY(-2px);border-color:rgba(80,220,186,.55)}.b404-path{display:flex;align-items:center;gap:12px;margin-top:26px!important;font-size:12px!important;color:rgba(255,255,255,.43)!important}.b404-path code{max-width:min(460px,70vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.055);color:rgba(255,255,255,.63)}.b404-guide{padding:clamp(24px,3vw,38px);border:1px solid rgba(255,255,255,.12);border-radius:26px;background:rgba(4,25,32,.62);box-shadow:0 32px 90px rgba(0,0,0,.18);backdrop-filter:blur(18px)}.b404-guide h2{margin:11px 0 23px;color:#fff;font-size:clamp(24px,2vw,32px);line-height:1.1;letter-spacing:-.035em}.b404-guide-links{display:grid}.b404-guide-links a{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.1);color:#fff;text-decoration:none}.b404-guide-links a:last-child{border-bottom:1px solid rgba(255,255,255,.1)}.b404-guide-links a>span{display:flex;align-items:center;gap:14px;min-width:0}.b404-guide-links small{color:#51d9b8;font-size:10px;letter-spacing:.12em}.b404-guide-links strong{font-size:15px;line-height:1.35}.b404-guide-links i{font-style:normal;color:#51d9b8;transition:transform .25s ease}.b404-guide-links a:hover i{transform:translate(3px,-3px)}.b404-guide-note{display:flex;gap:12px;margin-top:23px}.b404-guide-note>span{flex:0 0 9px;width:9px;height:9px;margin-top:7px;border-radius:50%;background:#51d9b8;box-shadow:0 0 0 7px rgba(81,217,184,.1)}.b404-guide-note p{margin:0;color:rgba(228,241,239,.58);font-size:13px;line-height:1.65}.b404-suggestions{padding:clamp(70px,8vw,116px) 0;background:#f5faf8}.b404-section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}.b404-section-head h2{max-width:650px;margin:10px 0 0;color:#0a2931;font-size:clamp(32px,4vw,52px);line-height:1.02;letter-spacing:-.045em}.b404-section-head>a{color:#0b5147;font-size:13px;font-weight:800;text-decoration:none}.b404-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.b404-card{display:flex;flex-direction:column;min-height:300px;padding:26px;border:1px solid #d7e7e2;border-radius:20px;background:#fff;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.b404-card:hover{transform:translateY(-4px);border-color:#9ed8c9;box-shadow:0 24px 55px rgba(20,65,56,.08)}.b404-card-top{display:flex;align-items:center;justify-content:space-between;color:#198b76}.b404-card-top span{font-size:12px;font-weight:900}.b404-card-top small{font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.b404-card h3{margin:34px 0 13px;color:#0a2931;font-size:clamp(21px,1.7vw,28px);line-height:1.12;letter-spacing:-.035em}.b404-card h3 a{color:inherit;text-decoration:none}.b404-card p{margin:0;color:#647b7e;font-size:14px;line-height:1.7}.b404-card-link{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:26px;color:#0b5147;font-size:13px;font-weight:800;text-decoration:none}.b404-card-link i{font-style:normal}.b404 :focus-visible,.b404-suggestions :focus-visible{outline:3px solid #55dfbe;outline-offset:4px}
@media(max-width:980px){.b404-shell{grid-template-columns:1fr;min-height:auto}.b404-main{max-width:none}.b404-guide{max-width:720px}.b404-cards{grid-template-columns:1fr 1fr}.b404-card:last-child{grid-column:1/-1}}
@media(max-width:640px){.b404-shell{gap:42px;padding-top:62px;padding-bottom:70px}.b404-code{margin-bottom:20px}.b404 h1{font-size:clamp(42px,13vw,62px)}.b404-search-row{grid-template-columns:1fr}.b404-search button{width:100%;margin-top:6px}.b404-actions{display:grid;grid-template-columns:1fr}.b404-actions a,.b404-actions button{width:100%}.b404-guide{padding:24px 20px;border-radius:20px}.b404-section-head{align-items:start;flex-direction:column}.b404-cards{grid-template-columns:1fr}.b404-card:last-child{grid-column:auto}.b404-path{align-items:flex-start;flex-direction:column}.b404-path code{max-width:100%}}
@media(prefers-reduced-motion:reduce){.b404 *,.b404-suggestions *{transition:none!important}}

/* v53 — 404 primary CTA contrast fix */
.b404 .b404-actions .b404-primary,
.b404 .b404-actions .b404-primary:link,
.b404 .b404-actions .b404-primary:visited {
  background:#ffffff !important;
  border-color:#ffffff !important;
  color:#08242c !important;
  -webkit-text-fill-color:#08242c !important;
}
.b404 .b404-actions .b404-primary > span,
.b404 .b404-actions .b404-primary > i {
  color:#08242c !important;
  -webkit-text-fill-color:#08242c !important;
  opacity:1 !important;
  visibility:visible !important;
}
.b404 .b404-actions .b404-primary:hover,
.b404 .b404-actions .b404-primary:focus-visible,
.b404 .b404-actions .b404-primary:active {
  background:#55dfbe !important;
  border-color:#55dfbe !important;
  color:#062029 !important;
  -webkit-text-fill-color:#062029 !important;
  box-shadow:0 14px 34px rgba(85,223,190,.2);
}
.b404 .b404-actions .b404-primary:hover > span,
.b404 .b404-actions .b404-primary:hover > i,
.b404 .b404-actions .b404-primary:focus-visible > span,
.b404 .b404-actions .b404-primary:focus-visible > i,
.b404 .b404-actions .b404-primary:active > span,
.b404 .b404-actions .b404-primary:active > i {
  color:#062029 !important;
  -webkit-text-fill-color:#062029 !important;
}