@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans Condensed";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-condensed-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans Condensed";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-condensed-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2")}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0}img{max-width:100%}[hidden]{display:none!important}

/* Layout: sizing workbench — section nav on top, form left, live result + breakdown right; stacks on phones */
:root{
  --bg:#f3f5f6; --surface:#ffffff; --sunk:#e8ecee; --line:#d3d9dd;
  --fg:#17212b; --muted:#5b6873; --accent:#0b6e6e; --accent-soft:#d5ebea;
  --clone:#9fb3bd; --warn:#a15c00; --c2:#4f6fa8; --c3:#8a6bb0;
  --f-display:"IBM Plex Sans Condensed","Arial Narrow",system-ui,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#10161b; --surface:#172028; --sunk:#0c1115; --line:#2b3741;
  --fg:#e3e9ed; --muted:#93a3ae; --accent:#4fc2b9; --accent-soft:#163a3a;
  --clone:#4d606b; --warn:#e3a54a; --c2:#7f9fd6; --c3:#b49ad6; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#10161b; --surface:#172028; --sunk:#0c1115; --line:#2b3741;
  --fg:#e3e9ed; --muted:#93a3ae; --accent:#4fc2b9; --accent-soft:#163a3a;
  --clone:#4d606b; --warn:#e3a54a; --c2:#7f9fd6; --c3:#b49ad6; color-scheme:dark}


body{background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:14px;line-height:1.45;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:20px 40px}
.wrap{max-width:1180px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
header{display:flex;flex-direction:column;gap:2px}
h1{font-family:var(--f-display);font-weight:600;font-size:1.75rem;letter-spacing:-.01em;margin:0;text-wrap:balance}
.sub{color:var(--muted);margin:0;max-width:70ch}

nav{display:flex;flex-direction:column;gap:8px}
.groups{display:flex;flex-wrap:wrap;gap:0;border-bottom:1px solid var(--line)}
.groups button{border:0;border-bottom:2px solid transparent;border-radius:0;background:none;padding:8px 12px;color:var(--muted);font:500 14px var(--f-body);margin-bottom:-1px}
.groups button[aria-current="true"]{color:var(--fg);border-bottom-color:var(--accent)}
.subs{display:flex;flex-wrap:wrap;gap:6px}
.subs a{font:500 12.5px var(--f-body);padding:5px 10px;border:1px solid var(--line);border-radius:4px;color:var(--muted);text-decoration:none;background:var(--surface)}
.subs a[aria-current="page"]{background:var(--accent-soft);color:var(--accent);border-color:transparent}
.subs a:focus-visible,.groups button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.grid{display:grid;grid-template-columns:minmax(0,380px) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:860px){.grid{grid-template-columns:minmax(0,1fr)}}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:6px}
form.panel{padding:6px 18px 16px}
fieldset{border:0;margin:0;padding:12px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
fieldset:last-of-type{border-bottom:0}
legend{font:600 11px var(--f-body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:0;margin-bottom:2px;float:left;width:100%}
legend+*{clear:both}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.row>label{flex:1;min-width:0}
.hint{display:block;color:var(--muted);font-size:12px}
.num{display:flex;align-items:center;border:1px solid var(--line);border-radius:4px;background:var(--sunk);width:118px;flex:none}
.num input,.sel select{width:100%;min-width:0;border:0;background:transparent;color:var(--fg);font:500 14px var(--f-mono);padding:6px 8px;text-align:right;font-variant-numeric:tabular-nums}
.sel{border:1px solid var(--line);border-radius:4px;background:var(--sunk);width:150px;flex:none}
.sel select{text-align:left;font-family:var(--f-body)}
.num span{font:12px var(--f-mono);color:var(--muted);padding-right:8px;white-space:nowrap}
.num:focus-within,.sel:focus-within{outline:2px solid var(--accent);outline-offset:1px}
input[type=number]::-webkit-inner-spin-button{opacity:.4}
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.trio label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}
.trio .num{width:100%}
.check{display:flex;align-items:flex-start;gap:9px;cursor:pointer}
.check input{accent-color:var(--accent);width:16px;height:16px;margin:2px 0 0;flex:none}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:4px;overflow:hidden;align-self:flex-start}
.seg label{padding:5px 10px;font-size:12px;cursor:pointer;color:var(--muted)}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label:has(input:checked){background:var(--accent-soft);color:var(--accent);font-weight:600}
.seg label:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:-2px}
.indent{margin-left:25px}
details summary{cursor:pointer;font:600 11px var(--f-body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);list-style:none;padding:12px 0 2px}
details summary::before{content:"+ ";font-family:var(--f-mono)}
details[open] summary::before{content:"− "}
details>div{display:flex;flex-direction:column;gap:10px;padding-top:8px}
.actions{display:flex;gap:8px;flex-wrap:wrap;padding-top:14px}
button{font:500 13px var(--f-body);border-radius:4px;padding:7px 12px;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--fg)}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.dis{opacity:.45}

.results{display:flex;flex-direction:column;gap:18px;min-width:0}
.summary{padding:18px 20px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 24px}
@media (max-width:620px){.summary{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.summary .big{grid-column:span 2}
@media (max-width:620px){.summary .big{grid-column:1/-1}}
.k{font:600 11px var(--f-body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin:0 0 4px}
.v{font:500 1.05rem var(--f-mono);font-variant-numeric:tabular-nums;margin:0}
.big .v{font-family:var(--f-display);font-weight:600;font-size:3rem;line-height:1;color:var(--accent);letter-spacing:-.02em}
.big .v small{font-size:1.1rem;color:var(--muted);font-weight:500;margin-left:4px}
.meta{color:var(--muted);font-size:12px;margin:4px 0 0}
.tile.dim{opacity:.45}
.tile.flag .meta{color:var(--warn)}
.basis{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.basis b{color:var(--fg);font-weight:500;font-family:var(--f-mono)}
.basis .actions{padding:0;margin-left:auto}

.ledger{padding:16px 0 8px}
.ledger-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px 16px;padding:0 20px 10px}
.ledger-head h2,.compare h2{font-family:var(--f-display);font-weight:600;font-size:1.15rem;margin:0}
.legend{display:flex;gap:14px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.sw{display:inline-block;width:12px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px;background:var(--accent)}
.sw.c{background:repeating-linear-gradient(135deg,var(--clone) 0 2px,transparent 2px 5px);border:1px solid var(--clone)}
.tier{font:600 11px var(--f-body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:10px 20px 6px;border-top:1px solid var(--line)}
.points{max-height:480px;overflow-y:auto;padding:0 20px 8px}
.pt{display:grid;grid-template-columns:76px minmax(0,1fr) 84px;gap:10px;align-items:center;padding:3px 0;font:12.5px var(--f-mono);font-variant-numeric:tabular-nums}
.pt .lab{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pt.g .lab{color:var(--fg);font-weight:500}
.pt .bar{height:10px;background:var(--sunk);border-radius:2px;display:flex;overflow:hidden}
.pt .bar i{display:block;height:100%;background:var(--accent)}
.pt .bar i.c{background:repeating-linear-gradient(135deg,var(--clone) 0 2px,transparent 2px 5px)}
.pt .tb{text-align:right}
.pt.ws .bar i{background:var(--warn)}
.pt.ws .lab{color:var(--warn)}
.note{font-size:12px;color:var(--muted);padding:6px 20px 8px;margin:0}
.kv{width:100%;border-collapse:collapse;font-size:13px}
.kv td{padding:6px 20px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}
.kv td:last-child{text-align:right;font-family:var(--f-mono)}
.kv tr.h td{font:600 11px var(--f-body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding-top:12px}
.kv tr.h td:last-child{font-family:var(--f-body)}
.stack{display:flex;height:22px;margin:4px 20px 10px;border-radius:3px;overflow:hidden;background:var(--sunk)}
.stack i{display:block;height:100%}

.plain{padding:16px 20px}
.plain-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px 16px;margin-bottom:8px}
.plain h2{font-family:var(--f-display);font-weight:600;font-size:1.15rem;margin:0}
.plain p{margin:0 0 10px;max-width:72ch;font-size:14.5px;line-height:1.55}
.plain p:last-child{margin-bottom:0}
.plain p.fine{font-size:12.5px;color:var(--muted)}
.plain b{font-weight:600}
.compare{padding:16px 20px}
.compare h2{margin-bottom:10px}
.addrow{display:flex;gap:8px;flex-wrap:wrap}
.addrow input{flex:1;min-width:180px;border:1px solid var(--line);border-radius:4px;background:var(--sunk);color:var(--fg);font:14px var(--f-body);padding:7px 9px}
.addrow input:focus{outline:2px solid var(--accent);outline-offset:1px}
.tablewrap{overflow-x:auto;margin-top:12px}
table.cmp{border-collapse:collapse;width:100%;min-width:620px;font-size:13px}
.cmp th,.cmp td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums}
.cmp th{font:600 11px var(--f-body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.cmp th:nth-child(-n+3),.cmp td:nth-child(-n+3){text-align:left}
.cmp td.mono{font-family:var(--f-mono)}
.cmp tfoot td{font-weight:600;border-bottom:0;border-top:2px solid var(--fg)}
.cmp td .x{border:0;background:none;color:var(--muted);padding:2px 6px}
.empty{color:var(--muted);font-size:13px;margin:10px 0 0}
footer{color:var(--muted);font-size:12px;max-width:85ch}
footer p{margin:0 0 6px}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:8px 14px;border-radius:4px;font-size:13px;z-index:5}
@media (prefers-reduced-motion:no-preference){.pt .bar i,.stack i{transition:width .25s ease}}

/* site chrome */
.brand{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-bottom:12px;border-bottom:1px solid var(--line)}
.brand .logo{font:600 15px var(--f-display);letter-spacing:.02em;color:var(--fg);text-decoration:none}
.brand .logo span{color:var(--accent)}
.brand nav{flex-direction:row;gap:14px;align-items:center}
.brand nav a{color:var(--muted);text-decoration:none;font-size:13px}
.brand nav a.cta{color:var(--surface);background:var(--accent);padding:6px 12px;border-radius:4px;font-weight:500}
.brand nav a:hover{text-decoration:underline}
.brand nav a.cta:hover{text-decoration:none;filter:brightness(1.1)}
.contact{padding:18px 20px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
.contact h2{font-family:var(--f-display);font-weight:600;font-size:1.15rem;margin:0 0 4px}
.contact p{margin:0;color:var(--muted);max-width:60ch}
.contact .actions{padding:0}
a.btn{display:inline-block;font:500 13px var(--f-body);border-radius:4px;padding:7px 12px;border:1px solid var(--line);background:var(--surface);color:var(--fg);text-decoration:none}
a.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}
footer a{color:inherit}
.sub a{color:var(--accent)}