/* StarPrint3D instructions site — layout v1 (20 Oct 2026). Plain CSS, no framework. */
@font-face{font-family:"Roboto Slab";src:url(fonts/RobotoSlab-VariableFont_wght.ttf) format("truetype");font-weight:100 900;font-display:swap}
@font-face{font-family:"Barlow";src:url(fonts/Barlow-Regular.ttf) format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"Barlow";src:url(fonts/Barlow-SemiBold.ttf) format("truetype");font-weight:600;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(fonts/BarlowCondensed-SemiBold.ttf) format("truetype");font-weight:600;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url(fonts/BarlowCondensed-Bold.ttf) format("truetype");font-weight:700;font-display:swap}

:root{
  --bg:#0E0F12; --bg2:#16181D; --card:#1C1F25; --line:#2A2E36;
  --orange:#E8731E; --teal:#3A9AA0; --ow:#F4EEE2; --muted:#A9A397;
  --r:10px; --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ow);font:400 17px/1.6 "Barlow",system-ui,sans-serif;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:var(--teal)} a:hover{color:var(--orange)}
h1,h2,h3{font-family:"Roboto Slab",Georgia,serif;font-weight:800;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.5vw,3.2rem)} h2{font-size:clamp(1.5rem,3vw,2rem)} h3{font-size:1.2rem;font-weight:700}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow,.chip,.btn,nav a,.code{font-family:"Barlow Condensed",sans-serif;letter-spacing:.06em;text-transform:uppercase}
.eyebrow{color:var(--teal);font-weight:700;font-size:.95rem;margin:0 0 .4em}
.muted{color:var(--muted)}
.ph{outline:2px dashed var(--orange);outline-offset:3px;border-radius:4px}
.ph-tag{display:inline-block;background:var(--orange);color:#111;font:700 .72rem/1 "Barlow Condensed",sans-serif;letter-spacing:.06em;text-transform:uppercase;padding:3px 6px;border-radius:3px;vertical-align:middle}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:rgba(14,15,18,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:18px;height:68px}
.brand img{height:46px;width:auto}
nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
nav a{color:var(--ow);text-decoration:none;font-weight:600;font-size:1.05rem;padding:8px 12px;border-radius:6px}
nav a:hover,nav a[aria-current]{background:var(--card);color:var(--orange)}
nav a.etsy{background:var(--orange);color:#111}
nav a.etsy:hover{background:#ff8a35;color:#111}

/* buttons, chips */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:1.1rem;padding:12px 20px;border-radius:8px;text-decoration:none;border:2px solid transparent;min-height:48px}
.btn-primary{background:var(--orange);color:#111} .btn-primary:hover{background:#ff8a35;color:#111}
.btn-ghost{border-color:var(--teal);color:var(--ow)} .btn-ghost:hover{background:var(--teal);color:#0E0F12}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.chip{display:inline-block;font-weight:700;font-size:.85rem;padding:4px 9px;border-radius:5px;background:var(--card);border:1px solid var(--line);color:var(--ow)}
.chip.scale{background:var(--orange);border-color:var(--orange);color:#111}
.chip.status{border-color:var(--teal);color:var(--teal)}

/* hero (home) */
.hero{padding:56px 0 40px;background:radial-gradient(ellipse at 80% 0%,rgba(58,154,160,.16),transparent 60%),radial-gradient(ellipse at 0% 100%,rgba(232,115,30,.12),transparent 55%)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.hero p.lead{font-size:1.2rem;color:#DCD5C7;max-width:34em}
.frame{background:#fff;border-radius:var(--r);overflow:hidden;border:4px solid var(--card);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.frame img{width:100%;height:auto}

/* scan box */
.scan{display:flex;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:var(--r);padding:16px 20px;margin-top:26px}
.scan form{display:flex;gap:8px;flex:1;flex-wrap:wrap}
.scan input{flex:1;min-width:150px;background:var(--bg);color:var(--ow);border:1px solid var(--line);border-radius:6px;padding:10px 12px;font:600 1.05rem "Barlow Condensed";letter-spacing:.08em;text-transform:uppercase}

/* sections */
section{padding:48px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px;flex-wrap:wrap}

/* features */
.features{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.feature b{display:block;font:700 1.2rem/1.2 "Barlow Condensed";letter-spacing:.04em;text-transform:uppercase;color:var(--orange);margin-bottom:6px}
.feature span{font-size:.95rem;color:#D5CEC0}

/* kit cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:var(--ow);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:var(--orange);color:var(--ow)}
.card .img{background:#fff;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}
.card .img img{width:100%;height:100%;object-fit:contain}
.card .img.none{background:repeating-linear-gradient(45deg,#20232a 0 12px,#1a1d22 12px 24px);color:var(--muted);font:600 1rem "Barlow Condensed";letter-spacing:.08em;text-transform:uppercase}
.card .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{margin:0;font-size:1.12rem}
.card .meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;padding-top:8px}
.code{color:var(--teal);font-weight:700;font-size:.95rem}

/* filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.filters .lbl{font:700 .9rem "Barlow Condensed";letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:2px}
.filters button{font:600 1rem "Barlow Condensed";letter-spacing:.05em;text-transform:uppercase;background:var(--bg);color:var(--ow);border:1px solid var(--line);border-radius:20px;padding:7px 14px;cursor:pointer;min-height:38px}
.filters button[aria-pressed=true]{background:var(--teal);border-color:var(--teal);color:#0E0F12}
.filters .sep{width:1px;height:26px;background:var(--line);margin:0 6px}

/* kit page */
.crumbs{font-size:.92rem;color:var(--muted);padding-top:16px}
.crumbs a{color:var(--muted)}
.kit-hero{display:grid;grid-template-columns:1.25fr 1fr;gap:36px;padding-top:20px;padding-bottom:36px;align-items:start}
.gallery .main{background:#fff;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;display:flex;align-items:center}
.gallery .main img{width:100%;height:100%;object-fit:contain}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:8px}
.thumbs a{background:#fff;border-radius:6px;overflow:hidden;aspect-ratio:1;border:2px solid transparent;display:flex}
.thumbs a.on{border-color:var(--orange)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.thumbs a.photo{background:repeating-linear-gradient(45deg,#20232a 0 8px,#1a1d22 8px 16px);color:var(--muted);font:600 .75rem/1.1 "Barlow Condensed";text-transform:uppercase;text-align:center;align-items:center;justify-content:center;padding:4px;text-decoration:none}
.kit-info .chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.kit-info .sub{font-size:1.15rem;color:#DCD5C7;margin:-4px 0 16px}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:18px 0}
.facts div{background:var(--card);padding:10px 14px}
.facts dt{font:700 .8rem "Barlow Condensed";letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.facts dd{margin:0;font-weight:600}
.ver{font-size:.92rem;color:var(--muted);margin-top:10px}

.jump{position:sticky;top:68px;z-index:10;background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.jump .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.jump a{white-space:nowrap;font:600 1rem "Barlow Condensed";letter-spacing:.06em;text-transform:uppercase;color:var(--ow);text-decoration:none;padding:12px 12px;border-bottom:3px solid transparent}
.jump a:hover{border-bottom-color:var(--orange)}

.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}
.panel h3{color:var(--orange)}
ul.ticks{list-style:none;padding:0;margin:0}
ul.ticks li{padding:6px 0 6px 26px;position:relative;border-bottom:1px dashed var(--line)}
ul.ticks li:last-child{border-bottom:0}
ul.ticks li::before{content:"";position:absolute;left:4px;top:15px;width:9px;height:9px;border-radius:50%;background:var(--teal)}

.dl{display:flex;gap:18px;align-items:center;background:linear-gradient(90deg,rgba(232,115,30,.16),transparent);border:1px solid var(--orange);border-radius:var(--r);padding:18px 20px;margin-bottom:26px;flex-wrap:wrap}
.dl .pdf{font:800 1.1rem "Roboto Slab";background:var(--orange);color:#111;border-radius:6px;padding:10px 12px}
.dl .txt{flex:1;min-width:200px}
details.older{margin-top:6px;font-size:.95rem;color:var(--muted)}
details.older summary{cursor:pointer;color:var(--teal)}

ol.steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;gap:18px}
ol.steps>li{counter-increment:s;display:grid;grid-template-columns:300px 1fr;gap:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;align-items:start}
ol.steps .pic{background:#fff;border-radius:6px;overflow:hidden;aspect-ratio:4/3;display:flex;align-items:center}
ol.steps .pic img{width:100%;height:100%;object-fit:contain}
ol.steps .pic.none{background:repeating-linear-gradient(45deg,#20232a 0 10px,#1a1d22 10px 20px);justify-content:center;color:var(--muted);font:600 .95rem "Barlow Condensed";text-transform:uppercase;letter-spacing:.06em;text-align:center;padding:10px}
ol.steps h3::before{content:"Step " counter(s);display:block;font:700 .9rem "Barlow Condensed";letter-spacing:.1em;text-transform:uppercase;color:var(--teal);margin-bottom:2px}
.tip{background:rgba(58,154,160,.12);border-left:4px solid var(--teal);padding:8px 12px;border-radius:4px;margin-top:10px;font-size:.97rem}
.warn{background:rgba(232,115,30,.12);border-left:4px solid var(--orange)}

details.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:600;font-size:1.05rem}
details.faq p{margin:.6em 0 0;color:#D5CEC0}

.buy{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-top:4px solid var(--orange);border-radius:var(--r);padding:22px 24px}
.sticky-buy{display:none}

/* footer */
footer{border-top:1px solid var(--line);padding:34px 0 90px;color:var(--muted);font-size:.95rem}
footer .wrap{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:start}
footer img{height:64px;width:auto}
footer ul{list-style:none;margin:0;padding:0;columns:2;column-gap:28px}
footer a{color:var(--ow);text-decoration:none} footer a:hover{color:var(--orange)}

/* about */
.prose{max-width:760px}
.prose p{color:#DCD5C7}

/* responsive */
@media (max-width:960px){
  .hero .wrap,.kit-hero,.two{grid-template-columns:1fr}
  .features{grid-template-columns:repeat(2,1fr)}
  ol.steps>li{grid-template-columns:1fr}
  footer .wrap{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:16.5px}
  .site-head .wrap{height:58px;gap:10px}
  .brand img{height:38px}
  nav a{padding:6px 7px;font-size:.98rem}
  nav a.hide-sm{display:none}
  .jump{top:58px}
  html{scroll-padding-top:110px}
  .hero{padding:28px 0 24px}
  section{padding:32px 0}
  .features{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr 1fr}
  .thumbs{grid-template-columns:repeat(5,1fr);gap:6px}
  .kit-hero{gap:18px;padding-top:12px}
  .kit-hero>*{min-width:0}
  .scan{flex-direction:column;align-items:stretch}
  .buy .btn,.dl .btn{width:100%;justify-content:center}
  .sticky-buy{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;gap:8px;padding:10px 12px;background:rgba(14,15,18,.97);border-top:1px solid var(--line)}
  .sticky-buy .btn{flex:1;justify-content:center;padding:10px 8px;font-size:1rem}
}
ol.steps .pic.none{aspect-ratio:auto;min-height:96px}
.frame.tall{display:flex;justify-content:center}
.frame.tall img{max-height:480px;width:auto;object-fit:contain}
@media (max-width:640px){
  .kit-info .btns{display:none}
  .grid{grid-template-columns:1fr 1fr;gap:12px}
  .card .body{padding:10px 11px 12px}
  .card h3{font-size:.98rem}
  .card .body>.muted{font-size:.85rem!important}
  .card .chip{font-size:.75rem;padding:3px 6px}
  .card .ph-tag{font-size:.65rem}
}