html{-webkit-text-size-adjust:100%}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}

/* Layout: a two-column worksheet — inputs as a ledger on the left, the live result and a shareable card on the right; stacks on phones. */
:root{
  --bg:#F2F4F1; --surface:#FFFFFF; --ink:#17231E; --muted:#5A6862; --line:#D6DDD8;
  --copper:#A9561F; --copper-soft:#F3E3D6; --moss:#3E6A4F; --moss-soft:#DCE8DF; --lock:#8A938E;
  --card-bg:#17231E; --card-ink:#F2F4F1; --card-accent:#E59A63;
  --display:"Young Serif", Georgia, serif; --body:"Libre Franklin", system-ui, sans-serif; --mono:"DM Mono", ui-monospace, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#111815; --surface:#18211D; --ink:#E7EDE9; --muted:#9AA8A1; --line:#2C3833;
  --copper:#E08A4E; --copper-soft:#3A2618; --moss:#7FB894; --moss-soft:#1F3328; --lock:#6E7873;
  --card-bg:#E7EDE9; --card-ink:#17231E; --card-accent:#A9561F; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111815; --surface:#18211D; --ink:#E7EDE9; --muted:#9AA8A1; --line:#2C3833;
  --copper:#E08A4E; --copper-soft:#3A2618; --moss:#7FB894; --moss-soft:#1F3328; --lock:#6E7873;
  --card-bg:#E7EDE9; --card-ink:#17231E; --card-accent:#A9561F; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.5}
.wrap{max-width:1080px;margin:0 auto;padding-inline:16px;padding-block:28px 48px}
header{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--copper);font-weight:600}
h1{font-family:var(--display);font-weight:400;font-size:clamp(28px,5vw,42px);line-height:1.1;margin:0;text-wrap:balance}
.lead{color:var(--muted);max-width:62ch;margin:0}
.modes{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:4px;background:var(--surface);align-self:flex-start;gap:4px}
.modes button{font:600 14px var(--body);border:0;border-radius:999px;padding:8px 18px;background:transparent;color:var(--muted);cursor:pointer}
.modes button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.modes button:focus-visible{outline:2px solid var(--copper);outline-offset:2px}
.grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:820px){.grid{grid-template-columns:minmax(0,1fr)}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:20px}
.sample{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;background:var(--copper-soft);border-radius:8px;padding:10px 12px;font-size:13px;margin-bottom:16px}
.sample button{font:inherit;font-weight:600;background:none;border:1px solid var(--copper);color:var(--copper);border-radius:6px;padding:4px 10px;cursor:pointer}
fieldset{border:0;margin:0 0 20px;padding:0}
legend{font-family:var(--display);font-size:20px;padding:0;margin-bottom:4px}
.scope-note{color:var(--muted);font-size:13px;margin:0 0 12px}
.row{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:12px;align-items:center;padding-block:10px;border-top:1px dashed var(--line)}
.row label{font-weight:500}
.row small{display:block;color:var(--muted);font-weight:400;font-size:12px;font-family:var(--mono)}
.field{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;background:var(--bg);overflow:hidden}
.field:focus-within{outline:2px solid var(--copper);outline-offset:1px}
.field input{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);font:500 15px var(--mono);padding:8px 10px;text-align:right;font-variant-numeric:tabular-nums}
.field input:focus{outline:none}
.field span{font:12px var(--mono);color:var(--muted);padding-right:10px;white-space:nowrap}
select{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px}
.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px);display:flex;flex-direction:column;gap:16px}
.stack{display:flex;flex-direction:column;gap:18px}
.total{font-family:var(--mono);font-variant-numeric:tabular-nums}
.total .num{font-size:clamp(40px,8vw,56px);font-weight:500;line-height:1}
.total .unit{font-size:14px;color:var(--muted);margin-left:6px}
.label{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.bars{display:flex;flex-direction:column;gap:10px}
.bar-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;font-size:13px}
.bar-track{grid-column:1 / -1;height:10px;background:var(--bg);border-radius:5px;overflow:hidden}
.bar-fill{height:100%;border-radius:5px;transition:width .3s ease}
.c1{background:var(--copper)} .c2{background:var(--moss)} .c3{background:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kpi{border-top:1px solid var(--line);padding-top:8px}
.kpi .v{font:500 20px var(--mono)}
.kpi .k{font-size:12px;color:var(--muted)}
.equiv{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.eq{background:var(--bg);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:2px}
.eq .v{font:500 18px var(--mono)}
.eq .k{font-size:12px;color:var(--muted);line-height:1.3}
.top{font-size:14px;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px var(--body);border-radius:8px;padding:12px 16px;text-decoration:none;cursor:pointer;border:1px solid transparent;text-align:center}
.btn-primary{background:var(--copper);color:#FFFFFF}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.actions{display:flex;flex-direction:column;gap:8px}
.toast{font-size:13px;color:var(--moss);min-height:1.2em}
.sharecard{background:var(--card-bg);color:var(--card-ink);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:12px}
.sharecard .tag{font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--card-accent)}
.sharecard .big{font-family:var(--display);font-size:clamp(34px,7vw,46px);line-height:1}
.sharecard .big small{font-family:var(--mono);font-size:14px;margin-left:6px}
.sharecard .line{font-size:14px}
.sharecard .by{border-top:1px solid color-mix(in srgb, var(--card-ink) 25%, transparent);padding-top:10px;font-size:12px;font-family:var(--mono)}
.hint{font-size:12px;color:var(--muted);margin:0}
.pro{margin-top:24px}
.pro h2{font-family:var(--display);font-weight:400;font-size:26px;margin:0 0 4px;text-wrap:balance}
.pro-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:16px}
.feat{border:1px solid var(--line);border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:6px}
.feat .tag{font:500 11px var(--mono);color:var(--lock);text-transform:uppercase;letter-spacing:.08em}
.feat strong{font-size:15px}
.feat p{margin:0;color:var(--muted);font-size:13px}
.price{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-top:16px;padding:16px;border-radius:8px;background:var(--moss-soft)}
.price .mono{font-size:22px}
.act{display:grid;grid-template-columns:minmax(0,1fr) 170px;gap:12px;align-items:center;padding-block:10px;border-top:1px dashed var(--line)}
.act label{font-weight:500}
.act small{display:block;color:var(--muted);font-weight:400;font-size:12px}
@media (max-width:480px){.act,.row{grid-template-columns:minmax(0,1fr)}}
textarea{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:10px;resize:vertical;min-height:70px}
textarea:focus{outline:2px solid var(--copper);outline-offset:1px}
.count{font:12px var(--mono);color:var(--muted);text-align:right}
.commit{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:6px}
.commit .v{font:500 20px var(--mono);color:var(--moss)}
.sharecard .badges{display:flex;flex-wrap:wrap;gap:6px}
.sharecard .badge{font:500 11px var(--mono);border:1px solid color-mix(in srgb, var(--card-ink) 35%, transparent);border-radius:999px;padding:3px 8px}
.sharecard .pledge{font-family:var(--display);font-size:16px;line-height:1.35}
.flist{display:flex;flex-direction:column}
.frow{display:grid;grid-template-columns:minmax(0,1fr) 92px 32px;gap:8px;align-items:center;padding-block:8px;border-top:1px dashed var(--line)}
.frow .kg{grid-column:1 / -1}
.frow small{grid-column:1 / -1;color:var(--muted);font-size:12px;font-family:var(--mono);margin-top:-4px}
.frow .del{background:none;border:1px solid var(--line);color:var(--muted);border-radius:6px;height:34px;cursor:pointer;font:inherit}
.addf{align-self:flex-start;margin-top:8px;font:600 14px var(--body);background:none;border:1px dashed var(--copper);color:var(--copper);border-radius:6px;padding:8px 12px;cursor:pointer}
.fact{margin:14px 0 0;padding:12px;border-radius:8px;background:var(--moss-soft);font-size:13px}
.fact .src{color:var(--muted)}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin-top:16px;align-items:stretch}
.tier{border:1px solid var(--line);border-radius:10px;padding:18px;display:flex;flex-direction:column;gap:10px}
.tier.featured{border:2px solid var(--copper)}
.tier ul{margin:0;padding-left:18px;color:var(--muted);font-size:13px;display:flex;flex-direction:column;gap:4px;flex:1}
.tprice{font-size:24px;font-weight:500}
.pledge-box{display:flex;flex-direction:column;gap:6px;padding-top:12px}
.strong{font-weight:500}.soft{color:var(--muted);font-weight:400}.gap8{margin-bottom:8px}.mt12{margin-top:12px}
.commit-k{font-size:13px;color:var(--muted)}
.contact{margin-top:20px;padding:18px;border-radius:10px;border:1px solid var(--line);display:flex;flex-direction:column;gap:10px;scroll-margin-top:16px}
.contact-lead{margin:0;color:var(--muted);font-size:14px}
.mailrow{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.mail{font-size:17px;user-select:all;word-break:break-all}
.btn.small{padding:6px 12px;font-size:13px}
.msgfield textarea{border:0;min-height:96px;font-size:14px}
.contact-actions{display:flex;flex-wrap:wrap;gap:8px}
footer{margin-top:32px;color:var(--muted);font-size:12px;max-width:80ch;display:flex;flex-direction:column;gap:6px}
footer a{color:var(--copper)}
@media (prefers-reduced-motion: reduce){.bar-fill{transition:none}}