/* Luxxo CAD sub-pages: design pages and topic pages */
:root{--grey:#F5F5F7;--ink:#1D1D1F;--ink2:#6E6E73;--blue:#0071E3;--blue2:#0066CC;--r:26px;--shadow:0 1px 2px rgba(0,0,0,.04),0 8px 28px rgba(0,0,0,.06);--wrap:1120px;--gut:clamp(16px,4vw,40px);--nav:52px;--ease:cubic-bezier(.22,.7,.2,1)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:60px}
body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,sans-serif;font-size:clamp(1.0625rem,.98rem + .3vw,1.1875rem);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
p{margin:0 0 1em}h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.08}
.sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-80px;z-index:100;background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px}.skip:focus{top:12px}
.wrap{max-width:var(--wrap);margin:0 auto}.narrow{max-width:760px}
section{padding:clamp(56px,8vw,110px) var(--gut)}
.grey{background:var(--grey)}.grey a:not(.pill):not(.dl):not(.card-link){color:var(--blue2)}
.dark{background:#000;color:#F5F5F7}.dark a:not(.pill){color:#2997FF}
.nav{position:sticky;top:0;z-index:60;height:var(--nav);background:rgba(251,251,253,.8);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.nav-in{max-width:calc(var(--wrap) + 2*var(--gut));height:100%;margin:0 auto;padding:0 var(--gut);display:flex;align-items:center;gap:12px}
.nav a:hover{text-decoration:none}.crumb{font-size:14px;color:var(--ink2)}.crumb-sep{color:#C7C7CC;font-size:14px}
.brand{font-size:19px;font-weight:600;letter-spacing:-.015em;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;gap:22px;margin:0 0 0 auto;padding:0;list-style:none}.nav-links a{font-size:14px;color:var(--ink);opacity:.8}
.nav .pill.sm{margin-left:8px}
@media (max-width:760px){.nav-links{display:none}.nav .pill.sm{margin-left:auto}}
@media (max-width:420px){.crumb,.crumb-sep{display:none}}
.pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 24px;border-radius:980px;border:0;background:var(--blue);color:#fff!important;font-size:17px;font-weight:500;line-height:1.2;cursor:pointer;white-space:nowrap;transition:background-color .2s,color .2s}
.pill:hover{background:#0077ED;text-decoration:none}.pill.sm{min-height:32px;padding:6px 14px;font-size:14px}
.pill.ghost{background:transparent;color:var(--blue)!important;box-shadow:inset 0 0 0 1.5px var(--blue)}.pill.ghost:hover{background:var(--blue);color:#fff!important}
.dark .pill.ghost{color:#2997FF!important;box-shadow:inset 0 0 0 1.5px #2997FF}
.dl{display:inline-flex;align-items:center;min-height:46px;padding:10px 20px;border-radius:980px;background:var(--grey);color:var(--ink)!important;font-size:16px;font-weight:500}.dl:hover{background:#E8E8ED;text-decoration:none}
.bc{font-size:14px;color:var(--ink2);margin:0 0 28px;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:4px 8px}
.bc li+li::before{content:"/";color:#C7C7CC;margin-right:8px}.bc a{color:var(--ink2)}
.top{padding-top:clamp(28px,4vw,48px)}
.eyebrow{font-size:15px;font-weight:600;color:var(--ink2);margin:0 0 10px}
h1{font-size:clamp(34px,4.6vw,56px)}
.lead{font-size:clamp(19px,1.05rem + .6vw,24px);line-height:1.4;color:var(--ink2);font-weight:500;margin:18px 0 0;max-width:40ch}
h2{font-size:clamp(26px,3vw,40px);margin-bottom:18px}
.prose p,.prose li{color:#3A3A3C}.prose ul,.prose ol{padding-left:1.2em}.prose li{margin:.4em 0}
.row{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;margin-top:28px}
.alt{font-weight:500}
.fine{font-size:14px;color:var(--ink2);margin:14px 0 0}
/* design page */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:center}
.media{position:relative;background:var(--grey);border-radius:var(--r);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media img{width:86%;height:86%;max-width:512px;max-height:512px;object-fit:contain}
.media model-viewer{width:100%;height:100%;--progress-bar-color:var(--blue);background:transparent}
.media .load{position:absolute;left:50%;bottom:18px;transform:translateX(-50%)}
.media.no-img img{display:none}.ph{display:none}.no-img .ph{display:block;color:var(--ink2);font-weight:500;padding:20px;text-align:center}
.fb{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;color:var(--ink2);padding:20px}.fb img{width:70%;height:auto}
.meta{color:var(--ink2);margin:14px 0 22px;font-variant-numeric:tabular-nums;font-size:16px}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 26px}
.stats div{display:flex;flex-direction:column-reverse;gap:2px}.stats dd{margin:0;font-size:clamp(22px,2.2vw,30px);font-weight:700;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.stats dt{font-size:13px;color:var(--ink2)}
.dls{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.intro{max-width:70ch;color:var(--ink2);margin:clamp(36px,5vw,56px) 0 0}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.card{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:clamp(24px,3vw,40px)}
.card h2{font-size:clamp(22px,2.4vw,30px)}
.q{font-size:clamp(18px,1.05rem + .4vw,22px);font-weight:500;line-height:1.45;margin:0}
.note{font-size:15px;color:var(--ink2);margin:12px 0 0}
details.req{margin-top:10px}details.req summary{cursor:pointer;color:var(--blue2);font-weight:500;padding:8px 0}details.req p{font-size:16px;line-height:1.6;margin:6px 0 0}
.spec{margin:0;display:grid;grid-template-columns:auto 1fr;font-size:16px}
.spec dt,.spec dd{margin:0;padding:11px 0;border-top:1px solid #E5E5EA}.spec dt{color:var(--ink2);padding-right:18px}.spec dd{font-weight:500;font-variant-numeric:tabular-nums}
.spec dt:first-of-type,.spec dd:first-of-type{border-top:0}
.flag{margin-top:clamp(24px,3vw,40px);border-radius:var(--r);background:#FFF4E0;color:#2B1A00;padding:clamp(24px,3vw,36px)}
.flag h2{display:flex;align-items:center;gap:10px;color:#8A4B00;font-size:clamp(20px,2vw,26px)}
.flag h2 svg{width:24px;height:24px;flex:none}
.flag ul{margin:0;padding-left:1.1em;font-size:clamp(17px,1rem + .3vw,20px);line-height:1.5}.flag li+li{margin-top:8px}
/* call to action */
.cta{text-align:center}.cta h2{font-size:clamp(30px,4.4vw,52px);max-width:18ch;margin:0 auto}
.cta .sub{color:#A1A1A6;font-size:clamp(18px,1.4vw,22px);font-weight:600;margin:16px auto 0;max-width:40ch}
.cta .row{justify-content:center}
/* design cards */
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:20px}
.card-link{display:block;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:18px 18px 22px;color:var(--ink)!important;height:100%;transition:transform .3s var(--ease)}
.card-link:hover{text-decoration:none;transform:translateY(-3px)}
.card-link img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain}
.card-link b{display:block;font-size:19px;letter-spacing:-.01em;line-height:1.25;margin-top:8px}.card-link span{display:block;font-size:14px;color:var(--ink2);margin-top:4px}
.card-link em{display:block;font-style:normal;font-size:15px;color:#3A3A3C;margin-top:10px;line-height:1.45}
.more{margin-top:26px}
/* steps */
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;gap:14px}
.steps li{counter-increment:s;background:var(--grey);border-radius:18px;padding:18px 20px 18px 64px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:20px;top:18px;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;font-size:15px;display:grid;place-items:center}
.steps b{display:block}
.files{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr));gap:12px;list-style:none;padding:0;margin:0}
.files li{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:18px}.files b{display:block;color:var(--blue);font-size:20px}.files span{font-size:15px;color:var(--ink2)}
/* faq */
.faq-list{border-top:1px solid #D2D2D7}.faq-list details{border-bottom:1px solid #D2D2D7}
.faq-list summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;font-size:clamp(18px,1rem + .4vw,22px);font-weight:600;line-height:1.3}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";flex:none;font-size:26px;font-weight:400;color:var(--blue);transition:transform .3s var(--ease)}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list .a{padding:0 0 22px;color:var(--ink2);max-width:70ch}.faq-list .a p{margin:0}
/* topics */
.topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr));gap:14px;margin:0;list-style:none;padding:0}
.topics a{display:block;height:100%;background:var(--grey);border-radius:18px;padding:18px 20px;color:var(--ink)!important;font-weight:600;line-height:1.3}
.topics a span{display:block;font-weight:400;font-size:15px;color:var(--ink2);margin-top:4px}.topics a:hover{background:#E8E8ED;text-decoration:none}
/* footer */
.foot{background:var(--grey);color:var(--ink2);font-size:13px;line-height:1.6;padding:36px var(--gut) 44px}
.foot .wrap{display:grid;gap:14px}.foot b{color:var(--ink)}.foot a{color:#424245}.foot p{margin:0}
.foot-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding-bottom:16px;border-bottom:1px solid #D2D2D7}
.foot ul{display:flex;flex-wrap:wrap;gap:4px 22px;list-style:none;margin:0;padding:0}
@media (max-width:860px){.hero,.two{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition-duration:.01ms!important}}