/* convert3dmodels — Sunrise design system (night + day) */
@font-face{font-family:"Space Grotesk";font-weight:500;font-display:swap;src:url(/fonts/space-grotesk-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Space Grotesk";font-weight:700;font-display:swap;src:url(/fonts/space-grotesk-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Manrope";font-weight:400;font-display:swap;src:url(/fonts/manrope-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Manrope";font-weight:500;font-display:swap;src:url(/fonts/manrope-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Manrope";font-weight:600;font-display:swap;src:url(/fonts/manrope-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Manrope";font-weight:700;font-display:swap;src:url(/fonts/manrope-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:500;font-display:swap;src:url(/fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2")}

:root,[data-theme="dark"]{
  color-scheme:dark;
  --bg:#241A2E;--blob1:#C2410C;--blob2:#B45309;--blob3:#9D174D;--blob-op:.5;--grid:rgba(255,255,255,.035);
  --text:#F6ECE8;--strong:#FFF8F4;--muted:#E4D4CE;--nav-text:#EADDD8;--nav-active:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.065);--glass-b:rgba(255,255,255,.15);--panel:rgba(0,0,0,.22);--panel-b:rgba(255,255,255,.09);
  --chip:rgba(255,255,255,.06);--input:rgba(0,0,0,.3);--track:rgba(255,255,255,.12);--rule:rgba(255,255,255,.1);
  --accent:#FB923C;--accent-text:#FDBA74;--on-accent:#2A1205;--link:#FDBA74;--tag-bg:rgba(251,146,60,.12);--tag-b:rgba(251,146,60,.42);--dashed:rgba(253,186,116,.45);
  --shadow:0 40px 120px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.12);
  --logo-stroke:#FF9A4D;--logo-wire:rgba(255,154,77,.1);--danger:#FCA5A5;--ok:#86EFAC;
}
[data-theme="light"]{
  color-scheme:light;
  --bg:#FFF6F1;--blob1:#FFC2A8;--blob2:#FFE08A;--blob3:#F9B9D3;--blob-op:.8;--grid:rgba(60,30,20,.045);
  --text:#2B1E1A;--strong:#1F130F;--muted:#6B5049;--nav-text:#3D2B26;--nav-active:#FFFFFF;
  --glass:rgba(255,255,255,.62);--glass-b:rgba(255,255,255,.98);--panel:rgba(255,255,255,.8);--panel-b:rgba(60,30,20,.08);
  --chip:rgba(255,255,255,.75);--input:#FFFFFF;--track:rgba(60,30,20,.1);--rule:rgba(60,30,20,.12);
  --accent:#C2410C;--accent-text:#9A3412;--on-accent:#FFFFFF;--link:#9A3412;--tag-bg:rgba(255,255,255,.72);--tag-b:rgba(194,65,12,.3);--dashed:rgba(194,65,12,.4);
  --shadow:0 30px 80px rgba(150,70,40,.14),inset 0 1px 0 #FFFFFF;
  --logo-stroke:#F0613A;--logo-wire:rgba(240,97,58,.07);--danger:#B91C1C;--ok:#15803D;
}
@media (prefers-color-scheme:light){:root:not([data-theme]){
  color-scheme:light;
  --bg:#FFF6F1;--blob1:#FFC2A8;--blob2:#FFE08A;--blob3:#F9B9D3;--blob-op:.8;--grid:rgba(60,30,20,.045);
  --text:#2B1E1A;--strong:#1F130F;--muted:#6B5049;--nav-text:#3D2B26;--nav-active:#FFFFFF;
  --glass:rgba(255,255,255,.62);--glass-b:rgba(255,255,255,.98);--panel:rgba(255,255,255,.8);--panel-b:rgba(60,30,20,.08);
  --chip:rgba(255,255,255,.75);--input:#FFFFFF;--track:rgba(60,30,20,.1);--rule:rgba(60,30,20,.12);
  --accent:#C2410C;--accent-text:#9A3412;--on-accent:#FFFFFF;--link:#9A3412;--tag-bg:rgba(255,255,255,.72);--tag-b:rgba(194,65,12,.3);--dashed:rgba(194,65,12,.4);
  --shadow:0 30px 80px rgba(150,70,40,.14),inset 0 1px 0 #FFFFFF;
  --logo-stroke:#F0613A;--logo-wire:rgba(240,97,58,.07);--danger:#B91C1C;--ok:#15803D;
}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font:400 16px/1.6 "Manrope",system-ui,sans-serif;transition:background-color .4s ease,color .4s ease;overflow-x:hidden}
img,svg,canvas{display:block;max-width:100%}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:"Space Grotesk",system-ui,sans-serif;color:var(--strong);margin:0;font-weight:700}
p{margin:0}
.sr-only{position:absolute;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:-60px;z-index:50;padding:10px 16px;border-radius:10px;background:var(--accent);color:var(--on-accent);font-weight:700}
.skip:focus{top:12px}

/* background light */
.bg{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bg i{position:absolute;border-radius:50%;filter:blur(140px);opacity:var(--blob-op);transition:background-color .4s ease}
.bg i:nth-child(1){top:-220px;right:-120px;width:720px;height:720px;background:var(--blob1)}
.bg i:nth-child(2){top:40%;left:-220px;width:600px;height:600px;background:var(--blob2)}
.bg i:nth-child(3){bottom:-200px;right:5%;width:560px;height:560px;background:var(--blob3)}
.bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:48px 48px}

.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
main{display:flex;flex-direction:column;gap:96px;padding:40px 0 40px}
@media (max-width:720px){main{gap:64px;padding-top:24px}}

/* header */
.site-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:22px}
.logo{display:flex;align-items:center;gap:12px;min-height:52px;font-family:"Space Grotesk",sans-serif;line-height:1;text-decoration:none}
.logo:hover{text-decoration:none}
.logo svg{width:40px;height:45px;flex:none}
.logo .w{font-size:26px;letter-spacing:-.9px}
.logo .w1{font-weight:500;color:var(--muted)}
.logo .w2{font-weight:700;color:var(--strong)}
.logo .wire{fill:var(--logo-wire)}
.logo .mesh{stroke:var(--logo-stroke)}
.head-right{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.nav{display:flex;flex-wrap:wrap;gap:4px;padding:6px;border-radius:16px;background:var(--glass);border:1px solid var(--glass-b);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);font-weight:600;font-size:15px}
.nav a{padding:10px 16px;border-radius:11px;color:var(--nav-text)}
.nav a:hover{text-decoration:none;background:var(--nav-active)}
.nav a[aria-current="page"]{background:var(--nav-active);color:var(--strong)}
.icon-btn{width:52px;height:52px;display:inline-flex;align-items:center;justify-content:center;border-radius:16px;background:var(--glass);border:1px solid var(--glass-b);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--strong);cursor:pointer;padding:0}
.icon-btn svg{width:22px;height:22px}
.theme-toggle .moon{display:none}
[data-theme="light"] .theme-toggle .sun{display:none}
[data-theme="light"] .theme-toggle .moon{display:block}
@media (prefers-color-scheme:light){:root:not([data-theme]) .theme-toggle .sun{display:none}:root:not([data-theme]) .theme-toggle .moon{display:block}}
@media (max-width:720px){.nav{order:3;width:100%;justify-content:space-between}.nav a{padding:10px 10px;font-size:14px}.logo .w{font-size:22px}}

/* shared glass */
.glass{background:var(--glass);border:1px solid var(--glass-b);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-radius:24px}
.tag{display:inline-block;align-self:flex-start;font-family:"IBM Plex Mono",monospace;font-size:14px;color:var(--accent-text);padding:7px 12px;border-radius:8px;border:1px solid var(--tag-b);background:var(--tag-bg)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border:0;border-radius:14px;background:var(--accent);color:var(--on-accent);font:700 16px "Manrope",sans-serif;cursor:pointer;text-decoration:none}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--strong);border:1px solid var(--glass-b)}
.lead{font-size:19px;line-height:1.6;color:var(--muted)}
.muted{color:var(--muted)}
.mono{font-family:"IBM Plex Mono",monospace}

/* hero */
.hero{display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.hero-copy{flex:1 1 440px;display:flex;flex-direction:column;gap:22px}
.hero h1{font-size:clamp(38px,5.2vw,62px);line-height:1.04;letter-spacing:-1.8px}
.ticks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.ticks li{display:flex;gap:10px;align-items:center}
.ticks svg{width:18px;height:18px;flex:none;color:var(--accent-text)}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:14px;color:var(--muted);list-style:none;margin:0;padding:0}
.crumbs li+li::before{content:"/";margin-right:6px;opacity:.6}

/* converter widget */
.tool{flex:1 1 520px;display:flex;flex-direction:column;gap:14px;padding:18px;border-radius:28px;background:var(--glass);border:1px solid var(--glass-b);backdrop-filter:blur(26px);-webkit-backdrop-filter:blur(26px);box-shadow:var(--shadow);min-width:0}
.stage{position:relative;height:320px;border-radius:20px;background:var(--panel);border:1px solid var(--panel-b);display:flex;align-items:center;justify-content:center;overflow:hidden}
.stage canvas{position:absolute;inset:0;width:100%;height:100%}
.stage .ph{width:220px;height:220px;color:var(--accent)}
.stage .chips{position:absolute;left:14px;bottom:14px;right:14px;display:flex;flex-wrap:wrap;gap:8px;font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--text);pointer-events:none}
.stage .chips span{padding:6px 10px;border-radius:8px;background:var(--chip);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.stage.drag{outline:2px dashed var(--accent);outline-offset:-8px}
.picker{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:14px;border-radius:18px;background:var(--chip);border:1px dashed var(--dashed)}
.picker .drop{flex:1 1 200px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:15px;min-width:0}
.picker .drop svg{width:24px;height:24px;flex:none}
.picker .fname{color:var(--strong);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.linkbtn{background:none;border:0;padding:0;font:inherit;font-weight:700;color:var(--link);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
select,input[type=range]{font:600 15px "Manrope",sans-serif}
select{min-height:44px;padding:0 12px;border-radius:12px;border:1px solid var(--glass-b);background:var(--input);color:var(--strong)}
.status{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted);min-height:22px}
.bar{flex:1;height:6px;border-radius:99px;background:var(--track);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:var(--accent);transition:width .3s ease}
.bar.indet i{width:30%;animation:slide 1.2s ease-in-out infinite}
@keyframes slide{0%{transform:translateX(-100%)}100%{transform:translateX(340%)}}
.result{display:none;flex-direction:column;gap:12px;padding:16px;border-radius:18px;background:var(--tag-bg);border:1px solid var(--tag-b)}
.result.show{display:flex}
.result .row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:space-between}
.result .stats{display:flex;flex-wrap:wrap;gap:8px;font-size:14px}
.result .stats span{padding:5px 10px;border-radius:8px;background:var(--chip)}
.err{color:var(--danger);font-weight:600}
.opts{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:15px}
.opts output{font-family:"IBM Plex Mono",monospace;min-width:52px}
input[type=range]{accent-color:var(--accent);width:200px}

/* sections */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.sec-head h2,h2.big{font-size:clamp(28px,3.2vw,36px);letter-spacing:-.8px;line-height:1.15}
.groups{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.group{display:flex;flex-direction:column;gap:10px;padding:22px}
.group h3{font-size:19px}
.pair{display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:0 12px;border-radius:12px;background:var(--chip);font-family:"IBM Plex Mono",monospace;font-size:15px;color:var(--text)}
.pair:hover{text-decoration:none;background:var(--nav-active)}
.pair svg{width:16px;height:16px;color:var(--link)}
.pairs{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.split{display:flex;flex-wrap:wrap;gap:40px;align-items:center;padding:clamp(24px,4vw,48px);border-radius:32px}
.split>div{flex:1 1 400px;min-width:0;display:flex;flex-direction:column;gap:18px}
.split p{font-size:17px;line-height:1.65;color:var(--muted)}
.nums{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.num{display:flex;flex-direction:column;gap:6px;padding:22px;border-radius:20px;background:var(--panel);border:1px solid var(--panel-b)}
.num b{font-family:"Space Grotesk",sans-serif;font-size:40px;line-height:1.1;color:var(--strong)}
.num.hi{background:var(--tag-bg);border-color:var(--tag-b)}
.num.hi b{color:var(--accent-text)}
.num span{font-size:14px;color:var(--muted)}
.compare{grid-column:1/-1;border-radius:20px;overflow:hidden;background:var(--panel);border:1px solid var(--panel-b)}
.compare svg{width:100%;height:auto}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.feature{display:flex;flex-direction:column;gap:12px;padding:28px;border-radius:22px}
.feature svg{width:30px;height:30px;color:var(--accent-text)}
.feature h3{font-size:20px}
.feature p{color:var(--muted)}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;list-style:none;margin:0;padding:0}
.steps li{display:flex;flex-direction:column;gap:8px;padding:24px;border-radius:22px;background:var(--glass);border:1px solid var(--glass-b)}
.steps li::before{counter-increment:s;content:counter(s);font-family:"IBM Plex Mono",monospace;color:var(--accent-text)}
.steps h3{font-size:19px}
.steps p{color:var(--muted)}
.faq{max-width:880px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq h2{text-align:center;margin-bottom:10px}
.faq details{padding:20px 24px;border-radius:18px;background:var(--glass);border:1px solid var(--glass-b)}
.faq summary{font-weight:700;font-size:17px;cursor:pointer;color:var(--strong)}
.faq details p{margin-top:12px;color:var(--muted)}
.info{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.info article{display:flex;flex-direction:column;gap:12px;padding:28px;border-radius:24px}
.info dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0;font-size:15px}
.info dt{color:var(--muted)}
.info dd{margin:0;color:var(--text)}
.prose{max-width:760px;display:flex;flex-direction:column;gap:16px}
.prose p,.prose li{color:var(--text)}
.prose h2{font-size:26px;margin-top:12px}
.table-wrap{overflow-x:auto;border-radius:20px}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--rule)}
th{font-family:"Space Grotesk",sans-serif;color:var(--strong)}

footer.site-foot{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:28px;padding:40px 0 56px;border-top:1px solid var(--rule);font-size:15px;color:var(--muted)}
.site-foot nav{display:flex;flex-direction:column;gap:10px}
.site-foot strong{color:var(--strong)}
.site-foot .logo .w{font-size:20px}
.site-foot .logo svg{width:32px;height:36px}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.stack{display:flex;flex-direction:column;gap:12px}
.page-h1{font-size:clamp(34px,4vw,48px);letter-spacing:-1px;line-height:1.1}
h2.sm{font-size:24px}
.compare{margin:0}
.act{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.status span{flex:0 1 auto}
.bar{min-width:80px}
@media (max-width:720px){
  .tool{padding:12px;border-radius:24px}
  .stage{height:260px}
  .stage .chips{gap:6px;font-size:11px;left:10px;bottom:10px;right:10px}
  .stage .chips span{padding:4px 8px}
  .act{width:100%}
  .act select{flex:1 1 auto;min-width:0}
  .status{font-size:13px}
  .hero{gap:28px}
}
@media (max-width:720px){.act .btn,.result .btn{flex:1 1 100%}}
p a,.feature a,.prose a,.faq a,.info article>a{text-decoration:underline;text-underline-offset:3px}
.compare img{width:100%;height:auto}
@media (max-width:720px){
  .head-right{display:contents}
  .site-header .logo{order:1;flex:1 1 auto}
  .theme-toggle{order:2;width:48px;height:48px}
  .nav{order:3}
  .hero{flex-direction:column;align-items:stretch}
  .hero-copy{display:contents}
  .hero-copy>*{order:1}
  .hero .tool{order:2;flex:none;width:100%}
  .hero .ticks{order:3}
}