:root{--bg:#fff;--alt:#F4F4F3;--ink:#2B2A29;--dim:#605F5D;--line:#D9D9D7;--acc:#E8141F;--acc-ink:#fff;--card:#fff;--hero:#2B2A29;--pad:transparent;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#1A1918;--alt:#222120;--ink:#F4F4F3;--dim:#B9B8B5;--line:#3A3938;--acc:#FF4D57;--acc-ink:#1A1918;--card:#222120;--hero:#100F0F;--pad:#fff;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#1A1918;--alt:#222120;--ink:#F4F4F3;--dim:#B9B8B5;--line:#3A3938;--acc:#FF4D57;--acc-ink:#1A1918;--card:#222120;--hero:#100F0F;--pad:#fff;color-scheme:dark}
html{scroll-padding-top:calc(72px + env(safe-area-inset-top,0px));scroll-behavior:smooth}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:inherit}
.w{max-width:1160px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;margin:0}
h1{font-size:clamp(32px,5vw,52px);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.4vw,36px);font-weight:700;letter-spacing:-.015em}
h3{font-size:18px;font-weight:600}
p{margin:0}
section{padding:72px 0}
.alt{background:var(--alt)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--acc);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--acc)}
.lead{color:var(--dim);max-width:640px;margin-top:14px}
.btn{display:inline-block;font:600 16px Inter,sans-serif;padding:13px 22px;border-radius:8px;border:1px solid var(--acc);background:var(--acc);color:var(--acc-ink);text-decoration:none;cursor:pointer}
.btn.o{background:transparent;color:var(--acc)}
.btn:hover{filter:brightness(1.08)}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--bg);z-index:50}
header{position:sticky;top:env(safe-area-inset-top,0px);background:var(--bg);border-bottom:1px solid var(--line);z-index:40}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{display:inline-block;background:var(--pad);padding:4px 6px;border-radius:6px;line-height:0}
.logo img{height:36px;width:auto;display:block}
.links{display:flex;gap:26px;align-items:center;font-size:15px;font-weight:600}
.links a{text-decoration:none;color:var(--dim)}
.links a:hover{color:var(--ink)}
.links .btn{color:var(--acc-ink);padding:9px 16px;font-size:15px}
.util{background:var(--alt);border-bottom:1px solid var(--line);font-size:13px;color:var(--dim)}
.util .w{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.util a{text-decoration:none;margin-left:20px;font-weight:600;color:var(--ink)}
.hero{padding:88px 0 0;background:var(--hero);color:#fff;border-bottom:4px solid var(--acc)}
.hero p.lead{font-size:19px;color:#D9D9D7}
.hero .eyebrow{color:#FF6A72}
.hero .btn.o{color:#fff;border-color:#8C8B89}
.hero .btn.o:hover{border-color:#fff}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.trust{display:grid;grid-template-columns:repeat(4,1fr);margin-top:64px;border-top:1px solid #4A4948}
.trust div{padding:26px 22px 28px 0;margin-right:22px;border-right:1px solid #4A4948}
.trust div:last-child{border:0;margin:0}
.trust b{display:block;font-size:28px;letter-spacing:-.02em;color:#fff}
.trust span{font-size:14px;color:#BDBCB9}
.grid{display:grid;gap:18px;margin-top:36px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.gauto{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.dnum{width:26px;height:26px;border-radius:50%;background:var(--acc);color:var(--acc-ink);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.pghead .chips{margin-top:22px}
.pghead .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.28);color:#fff}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px}
.card p{color:var(--dim);font-size:15px;margin-top:8px}
.card .n,summary .n{font-size:13px;font-weight:700;color:var(--acc);margin-bottom:8px;letter-spacing:.06em}
.card,details{transition:border-color .2s,box-shadow .2s}
.card:hover,details:hover{border-color:var(--ink);box-shadow:0 6px 18px -12px rgba(0,0,0,.25)}
.card{border-top:3px solid var(--acc)}
h2{margin-top:2px}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:0}
details[open]{grid-column:1/-1}
summary{cursor:pointer;list-style:none;padding:22px}
summary::-webkit-details-marker{display:none}
summary h3::after{content:"+";float:right;color:var(--acc);font-weight:400;font-size:22px;line-height:1}
details[open] summary h3::after{content:"–"}
summary p{color:var(--dim);font-size:15px;margin-top:8px}
.det{padding:0 22px 22px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid var(--line);padding-top:20px}
.det h4{margin:0 0 8px;font-size:14px}
.det ul{margin:0;padding-left:18px;color:var(--dim);font-size:15px}
.det li{margin-bottom:4px}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:36px;counter-reset:s}
.steps div{border-top:3px solid var(--acc);padding-top:14px}
.steps b{display:block;font-size:17px}
.steps span{font-size:14px;color:var(--dim)}
.two{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.cl{margin-top:26px;display:grid;gap:14px}
.cl a{display:flex;flex-direction:column;text-decoration:none;font-weight:600;border:1px solid var(--line);border-radius:10px;padding:14px 18px;background:var(--card)}
.cl small{font-weight:400;color:var(--dim);font-size:13px}
form{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px;display:grid;gap:14px}
.r{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:grid;gap:6px;font-size:14px;font-weight:600}
input,select,textarea{font:16px Inter,sans-serif;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);width:100%}
textarea{min-height:110px;resize:vertical}
.note{font-size:13px;color:var(--dim)}
footer{background:var(--hero);color:#BDBCB9;padding:52px 0 26px;font-size:14px;border-top:4px solid var(--acc)}
footer a{text-decoration:none;color:#fff}
footer a:hover{text-decoration:underline}
.fg{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.fg h4{margin:0 0 12px;color:#fff;font-size:14px;letter-spacing:.06em;text-transform:uppercase}
.fg p,.fg li{margin:0 0 8px}.fg ul{list-style:none;margin:0;padding:0}
.fg .logo{background:#fff;margin-bottom:14px}
.cp{border-top:1px solid #4A4948;margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width:700px){.fg{grid-template-columns:1fr}}
.bar{display:none}
@media (max-width:900px){
.links a:not(.btn){display:none}
.g4,.g3,.det,.two{grid-template-columns:1fr 1fr}
.two{grid-template-columns:1fr}
.trust{grid-template-columns:1fr 1fr}.trust div:nth-child(2){border-right:0;margin:0}.trust div:nth-child(-n+2){border-bottom:1px solid #4A4948}
.steps{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
.util span:first-child{display:none}.util .w{justify-content:center}.util a{margin:0 10px}
section{padding:52px 0}.hero{padding:52px 0 44px}
.g4,.g3,.det,.r,.steps{grid-template-columns:1fr}
.trust{grid-template-columns:1fr}
.trust div{border-right:0;margin-right:0;border-bottom:1px solid #4A4948;padding-bottom:20px;padding-top:20px}
.trust div:last-child{border-bottom:0}
.links .btn{display:none}
.bar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;background:var(--bg);border-top:1px solid var(--line);z-index:45;padding-bottom:env(safe-area-inset-bottom,0px)}
.bar a{padding:14px 6px;text-align:center;font-size:14px;font-weight:600;text-decoration:none}
.bar a+a{border-left:1px solid var(--line)}
.bar a:last-child{background:var(--acc);color:var(--acc-ink)}
body{padding-bottom:calc(52px + env(safe-area-inset-bottom,0px))}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.sc{display:block;text-decoration:none}.sc .go{margin-top:14px;font-weight:600;color:var(--acc);font-size:14px}
.orow{display:grid;grid-template-columns:260px 1fr;gap:20px;padding:18px 0;border-top:1px solid var(--line)}.orow b{font-size:16px}.orow .chips{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.chip{border:1px solid var(--line);background:var(--card);border-radius:6px;padding:6px 11px;font-size:14px;font-weight:600}
.pghead{background:var(--hero);color:#fff;padding:52px 0 46px;border-bottom:4px solid var(--acc)}.crumb{font-size:14px;color:#BDBCB9;margin-bottom:18px}.crumb a{color:#fff}
.pghead h1{font-size:clamp(28px,4.2vw,44px)}.pghead p{color:#D9D9D7;max-width:720px;margin-top:14px;font-size:18px}
.pgb{display:grid;grid-template-columns:1fr 330px;gap:48px;padding:52px 0}.pgb h2{font-size:24px;margin:38px 0 16px}.pgb h2:first-child{margin-top:0}.pgb ul.p{margin:0;padding-left:20px;color:var(--dim)}.pgb ul.p li{margin-bottom:6px}
.arch{margin:0;padding:0;list-style:none;counter-reset:a}.arch li{counter-increment:a;position:relative;padding:14px 16px 14px 58px;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:var(--card);color:var(--dim);font-size:16px}
.arch li::before{content:counter(a);position:absolute;left:16px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--acc);color:var(--acc-ink);font-weight:700;font-size:13px;display:grid;place-items:center}
.card ul{margin:10px 0 0;padding-left:18px;color:var(--dim);font-size:15px}.side .card{margin-bottom:18px}.side h3{margin-bottom:6px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-bottom:56px}.pager .sc:last-child{text-align:right}
@media (max-width:900px){.pgb{grid-template-columns:1fr}.orow{grid-template-columns:1fr;gap:10px}}
.ill{background:var(--alt);border-radius:8px;color:var(--ink);margin-bottom:16px}.ill svg{display:block;width:100%;height:auto;padding:8px}.ill img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px}.ill.big{margin-bottom:30px}.ill.big svg{max-height:300px}
.archdiagram{margin:18px 0 6px;display:flex;flex-direction:column}
.archlayer{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:16px 18px}
.archlayer.key{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc) inset}
.al-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.al-name{font-weight:700;font-size:15px}
.al-tag{font-size:12px;font-weight:600;color:var(--acc);background:rgba(232,20,31,.08);border-radius:5px;padding:3px 9px;white-space:nowrap}
.al-items{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.al-item{font-size:13px;color:var(--dim);background:var(--alt);border-radius:5px;padding:4px 9px}
.archlink{display:flex;justify-content:center;padding:6px 0}
.archlink span{font-size:11px;font-weight:700;letter-spacing:.03em;color:var(--dim);background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:4px 12px;display:inline-flex;align-items:center;gap:6px}
.archlink span::before{content:"\2193";color:var(--acc);font-weight:700}
.spectbl{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.spectbl th,.spectbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.spectbl th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--dim);font-weight:700}
.spectbl td:first-child{font-weight:600;white-space:nowrap}
.spectbl td:last-child{color:var(--dim)}
.optrow{margin:16px 0}
.optrow h4{font-size:14px;margin:0 0 10px}
.opt2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.optcard{border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--alt)}
.optlabel{font-weight:700;font-size:14px;color:var(--acc);margin-bottom:6px}
.optcard p{font-size:13px;color:var(--dim);margin-top:0}
.sizing{display:grid;gap:10px;margin:16px 0}
.sizecard{border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--card)}
.sizecard .rule{font-weight:600;font-size:14px;margin:0}
.sizecard .example{color:var(--dim);font-size:13px;margin-top:6px;font-family:ui-monospace,Consolas,monospace}
@media (max-width:600px){.opt2{grid-template-columns:1fr}.spectbl{font-size:13px}}
.whofor{padding:30px 0 40px;border-bottom:1px solid var(--line);margin-bottom:10px}
.whofor .lead{margin-top:10px}
.whofor h3{margin-top:34px;font-size:17px}
ul.checklist{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px}
ul.checklist li{position:relative;padding-left:28px;color:var(--dim);font-size:15px}
ul.checklist li::before{content:"\2713";position:absolute;left:0;top:0;color:var(--acc);font-weight:700}
.notfit{background:var(--alt);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-top:14px}
.notfit ul{margin:8px 0 0;padding-left:18px;color:var(--dim);font-size:15px}
.notfit ul li{margin-bottom:6px}

/* ===== migration task additions (Phase A3/A4/A10, honeypot, form a11y) ===== */
/* all rules below use the existing CSS variables and work in light + dark mode */

/* Fix: Phase A7 added width/height attributes to <img> for CLS prevention. Without
   an explicit CSS height, the browser uses that HTML height attribute directly and
   ignores aspect-ratio:16/9, producing tall, uneven cards. height:auto restores the
   original aspect-ratio-driven sizing while keeping the CLS-prevention attributes. */
.ill img{height:auto}

.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;background:var(--bg);cursor:pointer;position:relative;padding:0}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:9px;right:9px;height:2px;background:var(--ink);border-radius:2px}
.menu-btn span{top:19px}
.menu-btn span::before{top:-7px}
.menu-btn span::after{top:7px}
.links a[aria-current]{color:var(--ink);border-bottom:2px solid var(--acc);padding-bottom:4px}

.side{position:sticky;top:calc(88px + env(safe-area-inset-top,0px));align-self:start}

.hp{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}

input[aria-invalid="true"],select[aria-invalid="true"],textarea[aria-invalid="true"]{border-color:var(--acc)}

@media (max-width:900px){
.menu-btn{display:block}
.links{position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 0;display:none}
.links.open{display:flex}
.links a{padding:12px 20px;min-height:44px;display:flex;align-items:center}
.links a:not(.btn){display:flex}
.links .btn{margin:8px 20px;justify-content:center;display:flex}
.links a[aria-current]{border-bottom:0;background:var(--alt)}
.nav{position:relative}
.side{position:static;top:auto}
}
@media (prefers-reduced-motion:reduce){.links{transition:none}}

/* ===== clients section (homepage) ===== */
.clientgrid{list-style:none;margin:36px 0 0;padding:0;display:grid;gap:18px;grid-template-columns:repeat(5,1fr)}
.clientlogo{background:#fff;border:1px solid var(--line);border-radius:10px;height:96px;display:grid;place-items:center;padding:18px 22px}
.clientlogo img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.clientlogo h3{color:#2B2A29;font-size:15px;text-align:center;margin:0;font-weight:600}
@media (max-width:900px){.clientgrid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.clientgrid{grid-template-columns:repeat(2,1fr)}}