/* Layout: one 1120px column; hero splits copy / sample report, sections alternate plain and tinted bands */
:root{
  --ink:#18222E; --ink-2:#4A5866; --ink-3:#72808E;
  --paper:#FFFFFF; --band:#F3F6F5; --line:#DCE3E1;
  --accent:#12805C; --accent-ink:#0B5E43; --accent-wash:#E3F2EC;
  --pass:#12805C; --fail:#B4372B; --warn:#A86A12;
  --code-bg:#0F1720; --code-fg:#D8E2E0; --code-dim:#7E8E8C;
  --f-display:"Bricolage Grotesque", "Avenir Next", "Segoe UI", sans-serif;
  --f-body:"Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  --f-mono:"JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --r:10px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#E6ECEA; --ink-2:#AAB7B4; --ink-3:#7F8D8A;
    --paper:#0D1419; --band:#121C22; --line:#24323A;
    --accent:#3FB68B; --accent-ink:#6FD1AC; --accent-wash:#13302A;
    --pass:#3FB68B; --fail:#EE7A6D; --warn:#E3A84B;
    --code-bg:#080D11; --code-fg:#D8E2E0; --code-dim:#6E7F7C;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ink:#E6ECEA; --ink-2:#AAB7B4; --ink-3:#7F8D8A;
  --paper:#0D1419; --band:#121C22; --line:#24323A;
  --accent:#3FB68B; --accent-ink:#6FD1AC; --accent-wash:#13302A;
  --pass:#3FB68B; --fail:#EE7A6D; --warn:#E3A84B;
  --code-bg:#080D11; --code-fg:#D8E2E0; --code-dim:#6E7F7C;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--accent-ink)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--f-display);line-height:1.12;text-wrap:balance;margin:0;letter-spacing:-0.01em}
h1{font-size:clamp(2.3rem,5.4vw,3.7rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:16px;background:var(--paper);padding:8px 12px;z-index:20}
.eyebrow{font:600 .78rem/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink)}
.lede{color:var(--ink-2);font-size:1.12rem;max-width:62ch}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font:600 1rem/1 var(--f-body);text-decoration:none;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-ink)}
:root[data-theme="dark"] .btn-primary{color:#06110D}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn-primary{color:#06110D}}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--accent)}

/* header */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;padding-block:14px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:700 1.15rem/1 var(--f-display)}
.brand svg{width:34px;height:auto}
.logo-node{fill:var(--ink)}
.nav ul{display:flex;gap:20px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{color:var(--ink-2);text-decoration:none;font-size:.95rem}
.nav ul a:hover{color:var(--ink)}
.nav .btn{padding:10px 16px;font-size:.92rem}
.nav-book{color:var(--ink);font-weight:600;font-size:.95rem;text-decoration:none;white-space:nowrap}
.nav-book:hover{color:var(--accent-ink)}
@media (max-width:900px){.nav ul{display:none}.nav-book{margin-left:auto}}
.nav .btn{white-space:nowrap}
.label-short{display:none}
@media (max-width:560px){.nav-book{display:none}.nav .btn{margin-left:auto}.nav .label-long{display:none}.nav .label-short{display:inline}}

/* hero */
.hero{padding-block:72px 56px}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:22px;min-width:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding-block:48px 40px}}

.report{background:var(--code-bg);color:var(--code-fg);border-radius:14px;font:400 .82rem/1.5 var(--f-mono);overflow:hidden;min-width:0;box-shadow:0 24px 48px -28px rgba(10,20,25,.55)}
.report-bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;padding:12px 16px;border-bottom:1px solid #22303A;color:var(--code-dim)}
.report-bar b{color:var(--code-fg);font-weight:600}
.report-bar>*{white-space:nowrap}
.report-scroll{overflow-x:auto}
.report table{width:100%;border-collapse:collapse;min-width:440px}
.report td{padding:9px 16px;border-bottom:1px solid #18242C;vertical-align:top}
.report td:first-child{color:var(--code-dim);white-space:nowrap}
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-weight:600;font-size:.74rem;letter-spacing:.04em}
.tag.pass{background:rgba(63,182,139,.16);color:#5FD2A6}
.tag.fail{background:rgba(238,122,109,.16);color:#F29286}
.tag.warn{background:rgba(227,168,75,.16);color:#EDBB6A}
.report-foot{padding:12px 16px;color:var(--code-dim);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px;border-top:1px solid var(--line)}
.fact{padding:20px 20px 0 0;display:flex;flex-direction:column;gap:4px}
.fact strong{font:700 1.6rem/1.1 var(--f-display)}
.fact span{color:var(--ink-2);font-size:.92rem}
@media (max-width:700px){.facts{grid-template-columns:repeat(2,1fr);row-gap:8px}}

/* sections */
section{padding-block:80px}
section.band{background:var(--band);border-block:1px solid var(--line)}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px;max-width:720px}
@media (max-width:700px){section{padding-block:56px}}

.stack{display:flex;flex-wrap:wrap;gap:8px}
.stack li{list-style:none;font:500 .85rem/1 var(--f-mono);padding:8px 12px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);background:var(--paper)}
.stack-group{display:grid;grid-template-columns:160px 1fr;gap:16px;align-items:start;padding-block:14px;border-top:1px solid var(--line)}
.stack-group h3{font:600 .8rem/2.4 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.stack-group ul{margin:0;padding:0}
@media (max-width:700px){.stack-group{grid-template-columns:1fr;gap:8px}}

.problem{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.problem p+p{margin-top:16px}
.problem .body{color:var(--ink-2)}
@media (max-width:800px){.problem{grid-template-columns:1fr;gap:24px}}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:980px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.cards{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:12px;min-width:0}
.card .q{font-family:var(--f-display);font-size:1.05rem;color:var(--ink);font-weight:500}
.card .d{color:var(--ink-2);font-size:.96rem}
.card ul{margin:4px 0 0;padding-left:18px;color:var(--ink-2);font-size:.93rem;display:grid;gap:4px}
.card .phase{font:600 .72rem/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink)}
.card.flag{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}

.engage{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media (max-width:760px){.engage{grid-template-columns:1fr}}
.engage .card dl{margin:0;display:grid;gap:10px}
.engage dt{font:600 .75rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.engage dd{margin:4px 0 0;color:var(--ink-2);font-size:.95rem}
.engage .card a{margin-top:auto;font-weight:600}

.deliver{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
@media (max-width:900px){.deliver{grid-template-columns:1fr}}
.deliver-list{display:grid;gap:18px;margin:0;padding:0;list-style:none}
.deliver-list li{display:grid;grid-template-columns:28px 1fr;gap:12px}
.deliver-list svg{width:22px;height:22px;margin-top:3px;color:var(--accent)}
.deliver-list p{color:var(--ink-2);font-size:.96rem}
.deliver-list strong{display:block;color:var(--ink)}
.finding{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;min-width:0}
.finding-head{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.finding-head code{font:600 .85rem var(--f-mono);color:var(--ink)}
.sev{font:600 .72rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;padding:5px 9px;border-radius:4px;color:var(--fail);background:color-mix(in srgb,var(--fail) 12%,transparent)}
.finding-body{padding:20px;display:grid;gap:14px;font-size:.95rem}
.finding-body h4{margin:0 0 4px;font:600 .75rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.finding-body p{color:var(--ink-2)}
.finding pre{margin:0;background:var(--code-bg);color:var(--code-fg);padding:14px 16px;border-radius:8px;font:400 .8rem/1.55 var(--f-mono);overflow-x:auto}
.finding pre .c{color:var(--code-dim)}
.sample-note{font-size:.82rem;color:var(--ink-3);padding:12px 20px;border-top:1px solid var(--line)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;counter-reset:s;list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
@media (max-width:860px){.steps{grid-template-columns:1fr}}
.steps li{padding:24px 24px 24px 0;display:grid;gap:8px;counter-increment:s;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);font:600 .8rem/1 var(--f-mono);color:var(--accent-ink)}
.steps li p{color:var(--ink-2);font-size:.95rem}
.steps .when{font:500 .78rem/1 var(--f-mono);color:var(--ink-3)}

.about{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:28px}}
.about .body{display:grid;gap:16px;color:var(--ink-2)}
.creds{list-style:none;margin:0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.creds li{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:.96rem}
.creds li span:last-child{font:500 .8rem var(--f-mono);color:var(--ink-3);text-align:right}

.mailbox{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;gap:16px;align-content:start}
.mail-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.mail-addr{font:600 1.05rem var(--f-mono);user-select:all;color:var(--ink);word-break:break-all}
.copy{font:500 .85rem var(--f-body);background:none;border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:var(--ink-2);cursor:pointer}
.copy:hover{border-color:var(--accent);color:var(--ink)}
.mailbox small{color:var(--ink-3)}

.faq{max-width:800px;display:grid;gap:0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 32px 20px 0;font:600 1.05rem/1.4 var(--f-body);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:18px;font:400 1.4rem/1 var(--f-mono);color:var(--accent-ink)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{padding:0 0 20px;color:var(--ink-2);max-width:68ch}

footer{padding-block:40px;border-top:1px solid var(--line);color:var(--ink-3);font-size:.9rem}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--ink-2)}

/* discuss links */
.discuss{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:8px;font-weight:600;text-decoration:none;color:var(--accent-ink)}
.discuss::after{content:"\2192";transition:transform .15s}
.discuss:hover::after{transform:translateX(3px)}
@media (prefers-reduced-motion: reduce){.discuss::after{transition:none}}

/* product page */
.crumbs{font:500 .85rem var(--f-mono);color:var(--ink-3);padding-top:28px}
.crumbs a{color:var(--ink-2)}
.console{background:var(--code-bg);color:var(--code-fg);border-radius:14px;overflow:hidden;font:400 .82rem/1.5 var(--f-mono);min-width:0}
.console-top{display:flex;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid #22303A;color:var(--code-dim);flex-wrap:wrap}
.console-top b{color:var(--code-fg)}
.score{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #18242C}
.score div{padding:14px 16px;display:grid;gap:2px;border-right:1px solid #18242C}
.score div:last-child{border-right:0}
.score strong{font:700 1.4rem/1.1 var(--f-display);font-variant-numeric:tabular-nums}
.score span{color:var(--code-dim);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em}
.score .crit strong{color:#F29286}.score .high strong{color:#EDBB6A}
@media (max-width:560px){.score{grid-template-columns:repeat(2,1fr)}.score div:nth-child(2){border-right:0}}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.features{grid-template-columns:1fr}}
/* contact dialogs */
.modal{width:min(640px,calc(100vw - 32px));max-height:calc(100dvh - 32px);padding:0;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);color:var(--ink);box-shadow:0 24px 64px rgba(15,23,32,.28)}
.modal::backdrop{background:rgba(15,23,32,.55)}
.modal-body{position:relative;display:grid;gap:16px;padding:32px}
@media (max-width:560px){.modal-body{padding:24px 20px}}
.modal h2{font-size:1.6rem;padding-right:40px}
.modal p{margin:0}
.modal-lede{color:var(--ink-2)}
.modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border:0;border-radius:999px;background:none;color:var(--ink-2);font-size:1.6rem;line-height:1;cursor:pointer}
.modal-close:hover{background:var(--band);color:var(--ink)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:560px){.field-row{grid-template-columns:1fr}}
.field{display:grid;gap:6px;min-width:0;font-weight:600;font-size:.92rem}
.field em{font-style:normal;font-weight:400;color:var(--ink-3)}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font:400 1rem/1.4 var(--f-body)}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.modal-actions{display:flex;flex-wrap:wrap;gap:12px}
.modal-status{min-height:1.2em;color:var(--accent-ink);font-weight:600;font-size:.92rem}
.modal-status:empty{display:none}
.modal-note{color:var(--ink-3);font-size:.85rem}
.notice{border:1px solid var(--line);border-radius:var(--r);background:var(--band);padding:16px 18px;display:grid;gap:6px}
.notice p{color:var(--ink-2)}
.btn-icon{width:18px;height:18px;flex:none}
.modal .mail-row{margin-top:-8px}
/* contact: proposal banner, step chips, two action cards */
section[id]{scroll-margin-top:88px}
.proposal{display:grid;grid-template-columns:1fr 1.1fr;gap:32px;align-items:center;padding:28px;border:1px solid var(--line);border-radius:var(--r);background:var(--accent-wash)}
@media (max-width:860px){.proposal{grid-template-columns:1fr}}
.proposal h3{font-size:1.25rem;margin-bottom:8px}
.proposal p{margin:0;color:var(--ink-2)}
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px;counter-reset:step}
@media (max-width:420px){.flow{grid-template-columns:1fr}}
.flow li{display:flex;counter-increment:step}
.flow li span{flex:1}
.flow span{padding:7px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);font-weight:600;font-size:.88rem;line-height:1.2}
.flow span{display:inline-flex;align-items:center;gap:8px}
.flow span::before{content:counter(step);display:grid;place-items:center;width:20px;height:20px;border-radius:999px;background:var(--accent);color:#fff;font:600 .72rem/1 var(--f-mono)}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
@media (max-width:760px){.contact-cards{grid-template-columns:1fr}}
.contact-cards .mailbox p{margin:0;color:var(--ink-2)}
.card-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;background:var(--accent-wash);color:var(--accent-ink);border:1px solid var(--line)}
.card-icon svg{width:20px;height:20px}
.btn-arrow{justify-self:start}
.btn-arrow::after{content:"\2192";transition:transform .15s}
.btn-arrow:hover::after{transform:translateX(3px)}
.contact-foot{margin:20px 0 0;color:var(--ink-3);font-size:.9rem}
@media (max-width:560px){.hero-actions .btn{flex:1 1 100%;justify-content:center}}