:root{
  --bg:#10151c; --bg-grid:#161d26; --panel:#1a222c; --panel-2:#202a36;
  --border:#2c3846; --accent:#e8871e; --accent-dim:#a86a2e; --steel:#5b9bc7;
  --text:#e9edf1; --text-dim:#8c99a6; --text-faint:#5d6774; --ok:#4ca771; --warn:#d9534f;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:
    linear-gradient(var(--bg-grid) 1px, transparent 1px) 0 0/100% 28px,
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px) 0 0/28px 100%,
    var(--bg);
  color:var(--text); font-family:'IBM Plex Sans','Noto Sans Devanagari',sans-serif; min-height:100vh; padding:32px 20px 80px;
}
.wrap{max-width:1150px;margin:0 auto;}

.tag{
  position:relative; background:var(--panel); border:1px solid var(--border); border-radius:4px;
  padding:22px 26px; display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.tag::before,.tag::after,.tag .rl,.tag .rr{content:"";position:absolute;width:6px;height:6px;border-radius:50%;background:var(--text-faint);}
.tag::before{top:8px;left:8px;} .tag::after{top:8px;right:8px;}
.tag .rl{bottom:8px;left:8px;} .tag .rr{bottom:8px;right:8px;}
.brand{display:flex;align-items:center;gap:14px;}
h1{font-family:'Oswald',sans-serif;font-weight:600;letter-spacing:.03em;font-size:24px;margin:0;text-transform:uppercase;}
.sub{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-dim);letter-spacing:.04em;margin-top:4px;text-transform:uppercase;}

.lang-switch{display:flex;border:1px solid var(--border);border-radius:20px;overflow:hidden;margin:0;}
.lang-switch button{
  font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.04em;
  background:none;border:none;color:var(--text-dim);padding:7px 16px;cursor:pointer;
}
.lang-switch button.active{background:var(--accent);color:#191008;}

.panel{background:var(--panel);border:1px solid var(--border);border-radius:4px;padding:20px 22px;margin-top:18px;}
.panel h2{
  font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.04em;font-size:15px;margin:0 0 14px;
  display:flex;align-items:center;gap:8px;color:var(--accent);
}
.panel h2 .idx{font-family:'IBM Plex Mono',monospace;color:var(--text-faint);font-size:12px;}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
@media(max-width:900px){.grid3{grid-template-columns:1fr;}}

.mcard{background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:14px;}
.mcard input[type=text], .mcard input[type=number]{width:100%;margin-bottom:8px;}
.mcard label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);display:block;margin-bottom:3px;}
.caps{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px;}
.cap-tag{
  font-family:'IBM Plex Mono',monospace;font-size:10px;text-transform:uppercase;padding:4px 8px;border-radius:12px;
  border:1px solid var(--border);color:var(--text-dim);cursor:pointer;user-select:none;display:inline-block;
}
.cap-tag.on{color:var(--steel);border-color:rgba(91,155,199,.5);background:rgba(91,155,199,.08);}

input[type=text], input[type=number], select, textarea{
  background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:3px;
  padding:8px 10px;font-family:'IBM Plex Sans',sans-serif;font-size:13px;width:100%;
}
.fields{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
@media(max-width:900px){.fields{grid-template-columns:repeat(2,1fr);}}
.field label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);display:block;margin-bottom:5px;}

.ops-label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);display:block;margin:16px 0 6px;}
.ops{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;}
.op-chip{
  font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;padding:6px 12px;border-radius:3px;
  border:1px solid var(--border);color:var(--text-dim);cursor:pointer;user-select:none;display:inline-block;
}
.op-chip.on{color:var(--accent);border-color:rgba(232,135,30,.5);background:rgba(232,135,30,.08);}

details.adv{margin-top:14px;border-top:1px dashed var(--border);padding-top:12px;}
details.adv summary{
  font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;color:var(--text-faint);cursor:pointer;
}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px;}
@media(max-width:900px){.adv-grid{grid-template-columns:repeat(2,1fr);}}

.cost-toggles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px;}
@media(max-width:900px){.cost-toggles{grid-template-columns:1fr;}}
.cost-row{background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:12px 14px;}
.cost-row-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:8px;}
.cost-row-head label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-faint);}
.cost-row-head select{width:auto;font-size:11px;padding:4px 8px;}
.unit-cap{font-family:'IBM Plex Mono',monospace;font-size:9px;color:var(--text-faint);margin-top:5px;}
.manual-input{margin-top:6px;}

button.run{
  font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.05em;font-size:14px;font-weight:600;
  background:var(--accent);color:#191008;border:none;border-radius:3px;padding:12px 22px;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
}
button.run:hover{background:#f2a03f;}
button.run:disabled{background:var(--panel-2);color:var(--text-faint);cursor:wait;}
button.secondary{
  font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;background:none;color:var(--steel);
  border:1px solid var(--border);border-radius:3px;padding:8px 14px;cursor:pointer;margin-top:16px;margin-left:8px;
}
button.secondary:hover{border-color:var(--steel);}

.result{margin-top:18px;}
.result-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:16px;}
@media(max-width:900px){.result-grid{grid-template-columns:1fr;}}
.hero-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:700px){.hero-row{grid-template-columns:1fr;}}
table.breakdown{width:100%;border-collapse:collapse;font-size:13px;}
table.breakdown td{padding:8px 6px;border-bottom:1px solid var(--border);}
table.breakdown td:last-child{text-align:right;font-family:'IBM Plex Mono',monospace;}
table.breakdown tr.total td{font-weight:600;color:var(--accent);border-top:1px solid var(--border);font-size:15px;}
.hero-cost{background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:20px;text-align:center;}
.hero-cost .big{font-family:'Oswald',sans-serif;font-size:34px;color:var(--accent);font-weight:600;}
.hero-cost .label{font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;color:var(--text-faint);margin-top:4px;}
.hero-cost .sub2{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-dim);margin-top:14px;border-top:1px dashed var(--border);padding-top:12px;}
.machine-pick{margin-top:14px;font-size:13px;background:rgba(76,167,113,0.08);border:1px solid rgba(76,167,113,0.35);border-radius:4px;padding:10px 12px;}
.machine-pick b{color:var(--ok);}
.warn-box{margin-top:14px;font-size:12px;background:rgba(217,83,79,0.08);border:1px solid var(--warn);color:#f3b6b4;border-radius:4px;padding:10px 12px;}

.drop{
  border:1px dashed var(--border);border-radius:4px;padding:26px;text-align:center;cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-faint);
}
.drop:hover{border-color:var(--steel);color:var(--steel);}
.preview{max-width:260px;border-radius:4px;border:1px solid var(--border);margin-top:12px;display:block;}
#previewWrap{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;}
.file-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;background:var(--panel-2);
  border:1px solid var(--border);border-radius:4px;padding:9px 14px;font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-dim);
}
#removeFileBtn{margin-top:12px;color:var(--warn);border-color:rgba(217,83,79,0.4);}
#removeFileBtn:hover{border-color:var(--warn);background:rgba(217,83,79,0.08);}
.ai-out{margin-top:16px;background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:14px 16px;font-size:13px;line-height:1.6;}
.ai-out h3{font-family:'Oswald',sans-serif;font-size:13px;text-transform:uppercase;color:var(--accent);margin:0 0 8px;}

footer{max-width:1150px;margin:36px auto 0;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--text-faint);text-align:center;line-height:1.7;}