/* RobotmaaierCheck — light tool-first design. Flat hairline layout, system type,
   real product imagery, no decorative theatre. */
:root{
  --ink:#1c2420;--ink-soft:#5b6a62;--ink-faint:#8a978f;
  --bg:#fafaf7;--card:#ffffff;--line:#e3e6e0;--line-strong:#cfd4cc;
  --accent:#1e6e46;--accent-ink:#ffffff;--accent-soft:#e7f2eb;
  --amber:#8a5a12;--amber-soft:#fdf3dd;
  --radius:12px;--max:1080px;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6}
::selection{background:#cfe8da;color:var(--ink)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
p{margin:0 0 1rem}
ul,ol{padding-left:1.3rem;margin:0 0 1rem}
li{margin:.35rem 0}
strong{font-weight:650}
h1,h2,h3{text-wrap:balance;letter-spacing:-.02em}
h1{font-size:clamp(1.9rem,4.5vw,2.7rem);line-height:1.12;font-weight:760;margin:.9rem 0 .8rem}
h2{font-size:clamp(1.35rem,2.6vw,1.7rem);line-height:1.2;font-weight:720;margin:0 0 .6rem}
h3{font-size:1.05rem;font-weight:680;margin:0 0 .3rem}
img{max-width:100%}
main{max-width:var(--max);margin:0 auto;padding:0 22px 80px}
[hidden]{display:none!important}
.skip-link{position:absolute;left:12px;top:-48px;z-index:200;background:var(--ink);color:#fff;padding:9px 14px;border-radius:8px;transition:top .15s}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site{position:sticky;top:0;z-index:50;background:rgba(250,250,247,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-wrap{max-width:var(--max);margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:18px}
.logo{display:inline-flex;align-items:center;gap:9px;color:var(--ink);font-weight:740;font-size:1.02rem;letter-spacing:-.02em;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo-mark{width:26px;height:26px;flex:0 0 auto}
.logo-mark .deck{fill:#dfe5dc}.logo-mark .body{fill:#1e6e46}.logo-mark .wheel{fill:#1e6e46}
.logo b{color:var(--accent);font-weight:740}
.mainnav{margin-left:auto;display:flex;align-items:center;gap:4px}
.mainnav a{color:var(--ink-soft);font-size:.88rem;font-weight:560;padding:7px 11px;border-radius:999px;white-space:nowrap}
.mainnav a:hover{color:var(--ink);background:#eef0ea;text-decoration:none}
.mainnav a[aria-current=page]{color:var(--accent);background:var(--accent-soft);font-weight:650}

/* ---------- hero ---------- */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.85fr);gap:52px;align-items:center;padding:58px 0 50px}
.kicker{display:inline-block;color:var(--accent);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.11em}
.hero p.kicker{margin-bottom:0}
.hero .lead{max-width:52ch;color:var(--ink-soft);font-size:1.08rem;line-height:1.65;margin:0 0 1.4rem}
.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.hero-figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px 12px}
.hero-figure img{display:block;width:100%;height:auto;object-fit:contain}
.hero-figure figcaption{padding:8px 6px 4px;color:var(--ink-faint);font-size:.72rem}

/* ---------- buttons ---------- */
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 20px;background:var(--accent);color:var(--accent-ink)!important;border:0;border-radius:999px;font:inherit;font-size:.92rem;font-weight:650;cursor:pointer;text-decoration:none!important;transition:background .15s}
.button:hover{background:#175838}
.button.ghost{background:transparent;color:var(--accent)!important;border:1px solid var(--line-strong)}
.button.ghost:hover{background:var(--accent-soft)}
.button.small{min-height:38px;padding:7px 15px;font-size:.85rem}

/* ---------- checker ---------- */
.checker{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:36px;margin:8px 0 0;scroll-margin-top:70px}
.checker-head{max-width:62ch;margin-bottom:26px}
.checker-head h2{margin-top:.5rem}
.checker-sub{color:var(--ink-soft);margin:0}
#checker-form{display:grid;grid-template-columns:repeat(3,1fr);gap:18px 20px;margin:0}
.field label{display:block;margin-bottom:6px;font-size:.86rem;font-weight:640}
.field input,.field select{width:100%;min-height:44px;padding:9px 12px;border:1px solid var(--line-strong);border-radius:9px;background:#fff;color:var(--ink);font:inherit;font-size:.92rem}
.field input:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.field .hint{display:block;margin-top:5px;color:var(--ink-faint);font-size:.74rem;line-height:1.45}
#checker-form .button{grid-column:1/-1;justify-self:start;margin-top:2px}
.result-placeholder{grid-column:1/-1;color:var(--ink-faint);font-size:.9rem;margin:0}
#checker-result{grid-column:1/-1}

/* ---------- results ---------- */
.result-head{display:flex;justify-content:space-between;align-items:baseline;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:26px;padding-top:20px}
.result-head h3{margin:0;font-size:1.25rem}
.verdict{margin:0;color:var(--ink-faint);font-size:.83rem}
.verdict-ok{color:var(--accent);font-weight:680}
.verdict-weak{color:var(--amber);font-weight:680}
.model{display:grid;grid-template-columns:150px minmax(0,1fr);gap:22px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line)}
.mrow-thumb{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;display:grid;place-items:center}
.mrow-thumb img{display:block;width:100%;height:118px;object-fit:contain}
.result-name{margin:0 0 4px;font-size:1.18rem;letter-spacing:-.02em}
.result-name a{color:var(--ink)}
.result-name a:hover{color:var(--accent)}
.pills{margin:0 0 8px;min-height:0}
.pill{display:inline-block;margin:0 6px 5px 0;padding:3px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:.72rem;font-weight:650}
.pill.warn{background:var(--amber-soft);color:var(--amber)}
.why{margin:0 0 10px;color:var(--ink-soft);font-size:.9rem;max-width:70ch}
.facts{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.facts li{margin:0;padding:4px 11px;border:1px solid var(--line);border-radius:999px;font-size:.77rem;color:var(--ink-soft);background:#fff}
.facts li b{color:var(--ink);font-weight:640}
.facts li.bad{border-color:#ecd9b4;background:var(--amber-soft);color:var(--amber)}
.install-line{margin:10px 0 0;font-size:.84rem;color:var(--ink-soft);max-width:70ch}
.install-line strong{color:var(--ink)}
.result-actions{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:12px}
.result-actions .note{color:var(--ink-faint);font-size:.75rem}
.limit-note{margin:18px 0 0;color:var(--ink-faint);font-size:.79rem;max-width:78ch}

/* ---------- sections ---------- */
.ed-section{padding:64px 0 0}
.section-heading{border-top:2px solid var(--ink);padding-top:16px;display:flex;justify-content:space-between;align-items:end;gap:18px;flex-wrap:wrap;margin-bottom:24px}
.section-heading h2{margin:0;max-width:24ch}
.section-heading .kicker{margin-bottom:.3rem}
.section-heading .more{font-size:.87rem;font-weight:600;white-space:nowrap}

/* model list on home */
.model-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 24px}
.ed-item{display:flex;flex-direction:column}
.ed-item .thumb{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:12px}
.ed-item .thumb img{display:block;width:100%;height:130px;object-fit:contain}
.ed-item .thumb:hover{border-color:var(--line-strong)}
.ed-item .kicker{display:block;margin-bottom:3px;font-size:.66rem}
.ed-item h3{margin:0 0 4px}
.ed-item h3 a{color:var(--ink)}
.ed-item h3 a:hover{color:var(--accent)}
.ed-item p{margin:0;color:var(--ink-soft);font-size:.86rem;line-height:1.55}

/* navigation type columns */
.typegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.typecol{border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 14px;background:var(--card)}
.typecol h3{font-size:1.02rem;margin-bottom:2px}
.typecol .for{color:var(--accent);font-size:.83rem;font-weight:600;margin:0 0 12px}
.typecol ul{list-style:none;padding:0;margin:0}
.typecol li{padding:8px 0;border-top:1px solid var(--line);font-size:.86rem;color:var(--ink-soft)}
.typecol li b{color:var(--ink);font-weight:620}

/* steps */
.steps{list-style:none;padding:0;margin:0;counter-reset:st;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.steps li{counter-increment:st;margin:0;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;background:var(--card)}
.steps li::before{content:"0" counter(st);display:block;color:var(--accent);font-size:.8rem;font-weight:720;letter-spacing:.08em;margin-bottom:8px}
.steps h3{margin-bottom:4px}
.steps p{margin:0;color:var(--ink-soft);font-size:.88rem}
.method-note{margin-top:14px;color:var(--ink-faint);font-size:.79rem}

/* cta band */
.ed-cta-band{display:grid;grid-template-columns:minmax(0,1.5fr) auto;gap:28px;align-items:center;margin:64px 0 0;padding:32px 36px;background:#123528;color:#e8efe9;border-radius:16px}
.ed-cta-band .kicker{color:#9fd3b4}
.ed-cta-band h2{color:#fff;margin:.5rem 0 .4rem}
.ed-cta-band p{margin:0;color:#b8cabb;font-size:.93rem;max-width:56ch}
.ed-cta-band .button{background:#e9f5ec;color:#123528}
.ed-cta-band .button:hover{background:#fff}

/* faq */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;color:var(--ink);font-weight:640;font-size:.97rem;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:baseline}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:700;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 2px;color:var(--ink-soft);font-size:.9rem}

/* ---------- standard pages ---------- */
.page-intro{max-width:760px;padding:52px 0 34px}
.page-intro h1{max-width:20ch}
.page-intro>p:last-child{max-width:56ch;color:var(--ink-soft);font-size:1.05rem}
.breadcrumb{margin:26px 0 0;font-size:.8rem;color:var(--ink-faint)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.breadcrumb li{margin:0}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:var(--line-strong)}
.breadcrumb a{color:var(--ink-faint)}
.breadcrumb [aria-current]{color:var(--ink-soft)}

.reading{max-width:760px;color:var(--ink-soft)}
.reading h2{margin:40px 0 10px;color:var(--ink)}
.reading p{line-height:1.75}
.reading li{margin:.5rem 0}

/* directory */
.dir-group{margin:34px 0 12px;color:var(--ink-faint);font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.model-directory-item{display:grid;grid-template-columns:210px minmax(0,1fr);gap:26px;padding:22px 0;border-bottom:1px solid var(--line);align-items:center}
.model-directory-item h2{margin:2px 0 6px;font-size:1.3rem}
.model-directory-item h2 a{color:var(--ink)}
.model-directory-item h2 a:hover{color:var(--accent)}
.model-directory-item>p{color:var(--ink-soft);font-size:.92rem;max-width:62ch;margin:0 0 8px}
.model-directory-facts{color:var(--ink-faint);font-size:.8rem;margin:0}
.model-directory-image{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px}
.model-directory-image:hover{border-color:var(--line-strong);text-decoration:none}
.model-directory-image img{display:block;width:100%;height:150px;object-fit:contain}

/* product detail */
.product-detail{padding:44px 0 40px}
.product-detail-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,430px);gap:52px;align-items:start;padding-bottom:36px;border-bottom:1px solid var(--line)}
.product-detail h1{max-width:16ch;margin-top:.6rem}
.product-lead{max-width:56ch;color:var(--ink-soft);font-size:1.05rem;line-height:1.7}
.source-state{max-width:52ch;margin-top:22px;padding:12px 16px;background:var(--amber-soft);border-radius:9px;color:var(--amber);font-size:.8rem;line-height:1.55}
.product-hero-image{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px 10px}
.product-hero-image img{display:block;width:100%;height:auto;object-fit:contain}
.product-hero-image figcaption{padding:8px 4px 2px;color:var(--ink-faint);font-size:.72rem;line-height:1.4}
.product-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.85fr);gap:52px;padding:36px 0;border-bottom:1px solid var(--line)}
.product-detail-grid h2{margin-bottom:14px}
.product-facts{list-style:none;display:block;padding:0;margin:0}
.product-facts li{display:flex;justify-content:space-between;gap:18px;width:100%;margin:0;padding:10px 2px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;font-size:.9rem}
.product-facts .fact{display:flex;justify-content:space-between;gap:18px;width:100%;padding:0;border:0}
.product-facts .fact span{color:var(--ink-soft);flex:0 0 auto}
.product-facts .fact b{font-weight:640;text-align:right;white-space:normal}
.product-install p{color:var(--ink-soft);line-height:1.75;font-size:.95rem}
.product-install .button{margin-top:6px}
.product-sources{max-width:820px;padding-top:32px}
.product-sources h2{margin-bottom:10px}
.product-sources ul{list-style:none;padding:0;margin:0}
.product-sources li{padding:10px 0;border-bottom:1px solid var(--line)}
.product-sources li a{font-weight:600;font-size:.92rem}
.product-sources li span{display:block;color:var(--ink-faint);font-size:.76rem;margin-top:2px}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px;padding-top:18px;border-top:2px solid var(--ink)}
.prevnext a{color:var(--ink);text-decoration:none}
.prevnext a:hover .nm{color:var(--accent)}
.prevnext .dir{display:block;margin-bottom:3px;color:var(--ink-faint);font-size:.72rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase}
.prevnext .nm{font-size:1rem;font-weight:620}
.prevnext .next{text-align:right}

/* ---------- footer ---------- */
footer{margin-top:40px;background:#123528;color:#a9c0b2}
.footer-wrap{max-width:var(--max);margin:0 auto;padding:46px 22px 26px;font-size:.84rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-grid h3{margin:0 0 11px;color:#8fbf9f;font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin:.5rem 0}
.footer-grid a{color:#e5efe7}
.footer-grid a:hover{color:#fff}
.footer-brand{margin:0 0 10px;color:#fff;font-size:1.05rem;font-weight:700;letter-spacing:-.02em}
.footer-brand b{color:#8fbf9f;font-weight:700}
.footer-base{padding-top:18px;color:#7d998a;font-size:.75rem}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero{grid-template-columns:1fr;gap:30px;padding:40px 0 40px}
  .hero-figure{max-width:520px}
  #checker-form{grid-template-columns:1fr 1fr}
  .model-list{grid-template-columns:1fr 1fr}
  .typegrid,.steps{grid-template-columns:1fr}
  .product-detail-head,.product-detail-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  main{padding:0 16px 56px}
  .site-wrap{padding:10px 16px}
  .mainnav{gap:0;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .mainnav::-webkit-scrollbar{display:none}
  .mainnav a{font-size:.8rem;padding:6px 8px}
  #checker-form{grid-template-columns:1fr}
  .checker{padding:24px 18px}
  .model{grid-template-columns:96px minmax(0,1fr);gap:14px}
  .mrow-thumb{padding:6px}
  .mrow-thumb img{height:82px}
  .model-list{grid-template-columns:1fr;gap:22px}
  .ed-item .thumb img{height:120px}
  .result-head{flex-direction:column;gap:4px}
  .result-actions{flex-direction:column;align-items:flex-start;gap:8px}
  .ed-cta-band{grid-template-columns:1fr;padding:26px 22px;margin-top:52px}
  .page-intro{padding:38px 0 26px}
  .model-directory-item{grid-template-columns:1fr;gap:14px;align-items:start}
  .model-directory-image img{height:180px}
  .footer-wrap{padding:36px 16px 22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.mainnav a{transition:none}}