:root{
  color-scheme:dark;
  --bg:#101722;
  --deep:#0b1119;
  --panel:#172231;
  --soft:#1d2b3c;
  --text:#edf5f5;
  --muted:#9aadb9;
  --line:#2d4052;
  --mint:#54d8b8;
  --amber:#f5ba63;
  --danger:#ff7e7e;
  --shadow:0 18px 48px rgba(0,0,0,.22);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
:root[data-theme=light]{
  color-scheme:light;
  --bg:#eff5f5;
  --deep:#dce9eb;
  --panel:#fff;
  --soft:#e7f0f2;
  --text:#14212a;
  --muted:#60727e;
  --line:#c7d8dc;
  --mint:#087d65;
  --amber:#a26004;
  --danger:#bd3535;
  --shadow:0 14px 38px rgba(31,68,76,.12);
}
@media(prefers-color-scheme:light){
  :root:not([data-theme]){
    color-scheme:light;
    --bg:#eff5f5;
    --deep:#dce9eb;
    --panel:#fff;
    --soft:#e7f0f2;
    --text:#14212a;
    --muted:#60727e;
    --line:#c7d8dc;
    --mint:#087d65;
    --amber:#a26004;
    --danger:#bd3535;
    --shadow:0 14px 38px rgba(31,68,76,.12);
  }
}
*{box-sizing:border-box}
html{background:var(--bg)}
body{
  min-width:320px;
  min-height:100vh;
  margin:0;
  color:var(--text);
  background:radial-gradient(circle at 92% 0%,color-mix(in srgb,var(--mint) 14%,transparent),transparent 29rem),var(--bg);
}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:inherit}
.app-shell{width:min(1440px,100%);margin:auto;padding:0 16px 46px}
.topbar{min-height:78px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.brand strong{display:block;font-size:1.22rem;letter-spacing:-.045em}
.brand small{display:block;margin-top:2px;color:var(--muted);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(3,7px);
  align-items:end;
  gap:3px;
  width:33px;
  height:33px;
  padding:6px 5px;
  border-radius:9px;
  background:var(--mint);
}
.brand-mark i{display:block;background:#10222b;border-radius:1px}
.brand-mark i:nth-child(1){height:9px}
.brand-mark i:nth-child(2){height:16px}
.brand-mark i:nth-child(3){height:21px}
.top-actions{display:flex;gap:6px}
.quiet-btn,.secondary-btn,.danger-btn,.primary-btn{
  min-height:44px;
  padding:0 15px;
  border:1px solid transparent;
  border-radius:11px;
  font-size:.87rem;
  font-weight:750;
}
.quiet-btn{color:var(--muted);background:transparent}
.primary-btn{color:#06251e;background:var(--mint);border-color:var(--mint)}
.primary-btn:disabled,.danger-btn:disabled{opacity:.45;cursor:not-allowed}
.secondary-btn{color:var(--text);background:var(--soft);border-color:var(--line)}
.danger-btn{color:var(--danger);background:transparent;border-color:var(--danger)}
.tabbar{
  position:sticky;
  top:0;
  z-index:5;
  display:flex;
  gap:4px;
  padding:8px 0;
  overflow:auto;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);
}
.tab{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 15px;
  border-radius:9px;
  color:var(--muted);
  font-size:.9rem;
  font-weight:700;
  text-decoration:none;
  white-space:nowrap;
}
.tab.active{color:var(--text);background:var(--panel);box-shadow:inset 0 2px var(--mint)}
.view{padding-top:clamp(26px,5vw,64px)}
.hero-copy,.planner-head,.printer-head{max-width:850px}
.eyebrow{margin:0 0 8px;color:var(--mint);font-size:.71rem;font-weight:800;letter-spacing:.16em}
h1,h2,h3,p{margin-top:0}
h1{margin-bottom:12px;font-size:clamp(2rem,6vw,4.25rem);line-height:.98;letter-spacing:-.065em}
h2{margin-bottom:5px;font-size:clamp(1.23rem,3vw,1.65rem);letter-spacing:-.035em}
h3{margin-bottom:7px;font-size:1rem}
.lede,.muted{color:var(--muted)}
.lede{max-width:720px;margin-bottom:0;font-size:clamp(1rem,2vw,1.13rem);line-height:1.62}
.search-card,.panel,.notice-card{background:color-mix(in srgb,var(--panel) 94%,transparent);border:1px solid var(--line);box-shadow:var(--shadow)}
.search-card{max-width:900px;margin-top:36px;padding:clamp(18px,3vw,27px);border-radius:18px}
.search-card label{display:block;margin-bottom:10px;font-weight:760}
.search-row,.url-row{display:flex;gap:9px}
input,select{
  width:100%;
  min-height:45px;
  padding:0 12px;
  color:var(--text);
  background:color-mix(in srgb,var(--deep) 72%,transparent);
  border:1px solid var(--line);
  border-radius:10px;
  outline:none;
}
input:focus,select:focus{border-color:var(--mint);box-shadow:0 0 0 3px color-mix(in srgb,var(--mint) 15%,transparent)}
.chip-row{display:flex;gap:8px;overflow:auto;padding-top:14px}
.chip{
  flex:none;
  min-height:36px;
  padding:0 12px;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
}
.search-launcher{margin-top:26px;padding:clamp(17px,2.3vw,24px);border-radius:17px}
.section-heading,.panel-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.section-heading>p{max-width:310px;margin:8px 0 0;text-align:right;line-height:1.45}
.source-tabs{display:flex;gap:8px;align-items:center;overflow:auto;margin-top:20px;padding-bottom:2px}
.source-tab{
  flex:none;
  min-height:42px;
  padding:0 14px;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  font-size:.84rem;
  font-weight:760;
}
.source-tab.active{color:var(--text);background:color-mix(in srgb,var(--mint) 13%,var(--soft));border-color:var(--mint)}
.search-preview{
  margin-top:14px;
  overflow:hidden;
  background:var(--deep);
  border:1px solid var(--line);
  border-radius:14px;
}
.preview-browser-bar{
  display:flex;
  align-items:center;
  gap:6px;
  min-height:42px;
  padding:0 13px;
  background:color-mix(in srgb,var(--soft) 85%,var(--panel));
  border-bottom:1px solid var(--line);
}
.preview-browser-bar span{width:9px;height:9px;background:var(--line);border-radius:50%}
.preview-browser-bar b{
  display:block;
  min-width:0;
  margin-left:7px;
  padding:6px 10px;
  overflow:hidden;
  color:var(--muted);
  background:color-mix(in srgb,var(--deep) 76%,transparent);
  border-radius:6px;
  font-size:.71rem;
  font-weight:650;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.preview-content{padding:clamp(23px,5vw,48px);background:radial-gradient(circle at 84% 20%,color-mix(in srgb,var(--mint) 18%,transparent),transparent 18rem)}
.source-badge{
  display:inline-block;
  padding:6px 9px;
  color:var(--mint);
  background:color-mix(in srgb,var(--mint) 12%,transparent);
  border:1px solid color-mix(in srgb,var(--mint) 30%,transparent);
  border-radius:999px;
  font-size:.64rem;
  font-weight:800;
  letter-spacing:.12em;
}
.preview-content h3{margin:16px 0 8px;font-size:clamp(1.4rem,4vw,2.2rem);letter-spacing:-.045em}
.preview-content>p{max-width:650px;margin-bottom:0;color:var(--muted);line-height:1.55}
.search-term{margin-top:15px!important;color:var(--text)!important}
.search-term strong{color:var(--mint)}
.preview-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.open-source-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}
.embed-note{
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-top:14px;
  padding:13px 14px;
  color:var(--muted);
  background:color-mix(in srgb,var(--soft) 80%,transparent);
  border:1px solid var(--line);
  border-radius:11px;
  font-size:.78rem;
  line-height:1.48;
}
.embed-note strong{flex:none;color:var(--text)}
.source-section{margin-top:clamp(42px,7vw,82px)}
.source-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}
.source-card{
  position:relative;
  display:flex;
  flex-direction:column;
  min-height:210px;
  padding:19px;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:15px;
  text-decoration:none;
  transition:transform .18s,border-color .18s;
}
.source-card:hover{border-color:var(--mint);transform:translateY(-3px)}
.source-kicker,.printer-family{color:var(--mint);font-size:.64rem;font-weight:800;letter-spacing:.12em}
.source-card strong{margin:12px 0 8px;font-size:1.3rem}
.source-card>span:not(.source-kicker){color:var(--muted);font-size:.88rem;line-height:1.48}
.source-card b{margin-top:auto;padding-top:17px;font-size:.8rem}
.notice-card{display:flex;gap:17px;max-width:900px;margin-top:28px;padding:18px;border-radius:14px}
.notice-number{display:grid;place-items:center;flex:none;width:33px;height:33px;color:var(--mint);border:1px solid var(--mint);border-radius:8px}
.notice-card p,.panel-head p,.step-note p{margin-bottom:0;color:var(--muted);font-size:.84rem;line-height:1.5}
.planner-head,.printer-head{display:flex;justify-content:space-between;gap:22px;align-items:flex-end;max-width:none}
.planner-head select{width:min(260px,42vw)}
.planner-layout{display:grid;grid-template-columns:minmax(270px,.9fr) minmax(300px,1.15fr);gap:15px;margin-top:30px}
.panel{padding:clamp(17px,2.3vw,24px);border-radius:17px}
.upload-panel{grid-row:span 2}
.file-pill,.estimate-source{
  max-width:152px;
  padding:6px 9px;
  overflow:hidden;
  color:var(--mint);
  background:color-mix(in srgb,var(--mint) 11%,transparent);
  border:1px solid color-mix(in srgb,var(--mint) 27%,transparent);
  border-radius:999px;
  font-size:.68rem;
  font-weight:780;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.drop-zone{
  display:grid;
  min-height:166px;
  margin-top:19px;
  place-content:center;
  justify-items:center;
  color:var(--muted);
  text-align:center;
  border:1.5px dashed color-mix(in srgb,var(--mint) 55%,var(--line));
  border-radius:13px;
  cursor:pointer;
}
.drop-zone.dragging,.drop-zone:hover{background:color-mix(in srgb,var(--mint) 12%,transparent);border-color:var(--mint)}
.drop-zone input{position:absolute;width:1px;height:1px;opacity:0}
.drop-title{margin-bottom:7px;color:var(--text);font-size:1rem;font-weight:750}
.or-divider{display:flex;gap:10px;align-items:center;margin:19px 0;color:var(--muted);font-size:.72rem}
.or-divider:before,.or-divider:after{content:"";flex:1;height:1px;background:var(--line)}
.tiny{font-size:.74rem;line-height:1.5}
.conversion-box{
  display:flex;
  justify-content:space-between;
  gap:14px;
  align-items:center;
  margin-top:24px;
  padding:15px;
  background:color-mix(in srgb,var(--mint) 8%,var(--soft));
  border:1px solid color-mix(in srgb,var(--mint) 26%,var(--line));
  border-radius:12px;
}
.conversion-box p{max-width:265px;margin:0;color:var(--muted);font-size:.78rem;line-height:1.43}
.step-note{margin-top:17px;padding:14px;background:color-mix(in srgb,var(--amber) 7%,transparent);border-left:3px solid var(--amber)}
.step-note a{color:var(--amber);font-size:.78rem;font-weight:750}
.preview-panel{min-height:420px}
.drag-hint{color:var(--muted);font-size:.7rem;white-space:nowrap}
.viewer-wrap{
  position:relative;
  height:315px;
  margin-top:17px;
  overflow:hidden;
  background:var(--deep);
  border:1px solid var(--line);
  border-radius:13px;
  touch-action:none;
}
.viewer-wrap canvas{display:block;width:100%;height:100%}
.viewer-fallback{display:grid;height:100%;place-items:center;color:var(--muted);text-align:center}
.mesh-stats,.estimate-results{display:grid;gap:8px;margin-top:12px}
.mesh-stats{grid-template-columns:repeat(3,1fr)}
.mesh-stats div,.estimate-results article{min-width:0;padding:10px;background:var(--soft);border-radius:10px}
.mesh-stats span,.estimate-results span{display:block;margin-bottom:4px;color:var(--muted);font-size:.68rem}
.mesh-stats strong{display:block;overflow:hidden;font-size:.77rem;text-overflow:ellipsis;white-space:nowrap}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px}
.form-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}
.form-grid label{display:grid;gap:6px;color:var(--muted);font-size:.72rem;font-weight:680}
.form-grid .wide{grid-column:1/-1}
.estimate-results{grid-template-columns:1.2fr 1fr 1fr;margin-top:19px}
.estimate-results article{border:1px solid var(--line)}
.estimate-results .result-main{background:color-mix(in srgb,var(--mint) 10%,var(--soft));border-color:var(--mint)}
.estimate-results strong{display:block;overflow:hidden;font-size:1.08rem;text-overflow:ellipsis;white-space:nowrap}
.estimate-results small,.estimate-disclaimer{display:block;margin-top:5px;color:var(--muted);font-size:.68rem}
.estimate-disclaimer{font-size:.73rem;line-height:1.5}
.printer-layout{display:grid;grid-template-columns:minmax(240px,.6fr) minmax(320px,1fr);gap:15px;margin-top:30px}
.printer-list{display:grid;align-content:start;gap:10px}
.printer-card{
  display:grid;
  width:100%;
  gap:5px;
  padding:17px;
  color:var(--text);
  text-align:left;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:13px;
}
.printer-card.selected,.printer-card:hover{background:color-mix(in srgb,var(--mint) 8%,var(--panel));border-color:var(--mint)}
.printer-card strong{font-size:1.05rem}
.printer-card>span:not(.printer-family),.printer-card small{color:var(--muted);font-size:.77rem}
.editor-actions{display:flex;justify-content:space-between;gap:10px;margin-top:22px}
.toast{
  position:fixed;
  z-index:15;
  left:50%;
  bottom:21px;
  width:min(calc(100% - 32px),440px);
  padding:13px 16px;
  color:var(--text);
  text-align:center;
  background:var(--panel);
  border:1px solid var(--mint);
  border-radius:11px;
  box-shadow:var(--shadow);
  opacity:0;
  pointer-events:none;
  transform:translate(-50%,120px);
  transition:.25s;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:960px){
  .source-grid{grid-template-columns:repeat(2,1fr)}
  .planner-layout,.printer-layout{grid-template-columns:1fr}
  .upload-panel{grid-row:auto}
  .printer-list{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .app-shell{padding-inline:12px}
  .topbar{min-height:66px}
  .quiet-btn{min-width:44px;padding:0 8px;font-size:.73rem}
  .search-row,.url-row,.planner-head,.printer-head,.conversion-box{flex-direction:column;align-items:stretch}
  .search-row .primary-btn,.url-row .secondary-btn,.planner-head select{width:100%}
  .section-heading{display:block}
  .section-heading>p{max-width:none;text-align:left}
  .source-grid,.printer-list{grid-template-columns:1fr}
  .source-card{min-height:178px}
  .embed-note{display:block}
  .embed-note strong{display:block;margin-bottom:5px}
  .preview-actions{flex-direction:column}
  .preview-actions>*{width:100%}
  .drag-hint{display:none}
  .viewer-wrap{height:275px}
  .mesh-stats,.estimate-results,.form-grid.compact{grid-template-columns:1fr 1fr}
  .mesh-stats div:last-child,.estimate-results article:first-child{grid-column:1/-1}
  .form-grid{grid-template-columns:1fr}
  .form-grid .wide{grid-column:auto}
  .editor-actions{flex-direction:column-reverse}
  .editor-actions button{width:100%}
}