:root{--bg:#fbf9f7;--card:#fff;--text:#0b2340;--muted:#566a80;--line:#e8e3dd;--accent:#1d6f87;--accent-text:#fff;--btn:#0c3a6c;--btn-text:#fff;--royal:#843a82;--papaya:#ff6633;--magenta:#e8408a;--midnight:#0c3a6c;--ocean:#237b94;--ok:#0a7d3c;--bad:#b42318;--warn:#9a6700;--story:#0c3a6c}
@media (prefers-color-scheme:dark){:root{--bg:#07182b;--card:#0c2540;--text:#eaf1f8;--muted:#9db2c7;--line:#1d3a5a;--accent:#6cc5dc;--accent-text:#06202e;--btn:#ff6633;--btn-text:#1a0d06;--ok:#4cc38a;--bad:#ff7b72;--warn:#e3b341;--story:#0f2f52}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;accent-color:var(--papaya)}
main{max-width:880px;margin:0 auto;padding:12px 16px 56px}
h1{font-size:clamp(1.9rem,5.2vw,2.9rem);line-height:1.1;letter-spacing:-.025em;font-weight:760;margin:14px 0 14px;max-width:20ch}
h2{font-size:1.05rem;margin:0 0 12px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px}
.muted{color:var(--muted);font-size:.9rem}
label{display:block;font-size:.85rem;color:var(--muted)}
select,input[type=number]{display:block;width:100%;margin-top:4px;padding:10px 11px;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:10px}
select:focus-visible,input:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--papaya);outline-offset:2px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-top:12px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--bg);flex:none}
.seg button{border:0;background:transparent;color:var(--text);padding:8px 22px;font:inherit;cursor:pointer;border-radius:999px}
.seg button.on{background:var(--btn);color:var(--btn-text);font-weight:600}
.drop{display:flex;flex-direction:column;align-items:center;gap:4px;border:2px dashed var(--line);border-radius:18px;padding:44px 16px;text-align:center;cursor:pointer;color:var(--muted);font-size:.95rem;background:var(--bg);transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--papaya);color:var(--text)}
#cropwrap{margin-top:14px;text-align:center}
#crop{touch-action:none;max-width:100%;border-radius:8px;background:#000}
.row{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;margin-top:10px}
.row label{min-width:150px}
input[type=range]{display:block;width:100%;margin-top:8px}
button.ghost,.btn{font:inherit;border:1px solid var(--line);background:var(--bg);color:var(--text);padding:8px 14px;border-radius:10px;cursor:pointer;text-decoration:none;display:inline-block}
button.ghost:hover,.btn:hover{border-color:var(--papaya)}
.btn.primary{background:var(--btn);color:var(--btn-text);border-color:var(--btn);font-weight:650;padding:12px 26px;border-radius:999px}
.btn.primary:hover{background:var(--papaya);border-color:var(--papaya);color:#1a0d06}
.chk{display:flex;gap:8px;align-items:center;color:var(--text);font-size:.9rem}
#sigctl{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.resgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}
@media (max-width:640px){.resgrid{grid-template-columns:1fr}}
.prev{background:repeating-conic-gradient(#0000 0 25%,#8883 0 50%) 0 0/16px 16px;border:1px solid var(--line);border-radius:10px;padding:8px;text-align:center}
.prev canvas{max-width:100%;max-height:380px;width:auto;height:auto;display:inline-block;background:#fff}
ul#checks{list-style:none;padding:0;margin:0 0 10px}
ul#checks li{padding:4px 0}
.ok{color:var(--ok)}.bad{color:var(--bad)}.warnc{color:var(--warn)}
#err{color:var(--bad);margin-top:10px}
footer{color:var(--muted);font-size:.82rem;margin-top:24px}
.ad{margin:16px 0}

/* ---------- site layout (header, hero, article text, footer) ---------- */
.stripe{height:4px;background:linear-gradient(90deg,var(--royal) 0 20%,var(--papaya) 20% 40%,var(--magenta) 40% 60%,var(--midnight) 60% 80%,var(--ocean) 80% 100%)}
.site-head{background:var(--bg)}
.site-head .in{max-width:880px;margin:0 auto;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;color:var(--text);text-decoration:none}
.brand svg{width:28px;height:28px;flex:none}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;padding:7px 14px;border:1px solid var(--line);border-radius:999px;font-size:.9rem;background:var(--card)}
.menu summary:hover{border-color:var(--papaya)}
.menu summary::-webkit-details-marker{display:none}
.menu div{position:absolute;right:0;z-index:5;margin-top:8px;min-width:270px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:6px;box-shadow:0 12px 32px #0b234026}
.menu a{display:block;padding:9px 12px;border-radius:8px;color:var(--text);text-decoration:none;font-size:.92rem}
.menu a:hover{background:var(--bg)}
a{color:var(--accent)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:18px 0 0;padding:5px 14px;border:1px solid var(--line);border-radius:999px;background:var(--card);font-size:.82rem;color:var(--muted)}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--papaya)}
.lead{font-size:1.1rem;color:var(--muted);margin:0 0 22px;max-width:60ch}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px;padding:0;list-style:none}
.chips li{padding:5px 12px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:.84rem}
.chips li:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px;background:var(--ocean)}
.chips li:nth-child(2):before{background:var(--papaya)}
.chips li:nth-child(3):before{background:var(--magenta)}
.trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:0 0 20px}
.trust div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.trust strong{display:block;margin-bottom:4px}
.trust span{color:var(--muted);font-size:.92rem}
.story{background:var(--story);color:#fff;border-radius:20px;padding:34px 28px;margin:40px 0}
.story h2{font-size:clamp(1.4rem,3.4vw,1.9rem);letter-spacing:-.02em;margin:0 0 14px;color:#fff}
.story h2 em{font-style:normal;color:var(--papaya)}
.story p{margin:0 0 14px;max-width:58ch;color:#e3ecf5;font-size:1.04rem}
.story p:last-child{margin-bottom:0}
.prose h2{font-size:1.3rem;letter-spacing:-.015em;margin:36px 0 10px}
.prose h3{font-size:1rem;margin:18px 0 4px}
.prose p,.prose li{line-height:1.65}
.prose ol,.prose ul{padding-left:22px}
.prose li::marker{color:var(--papaya);font-weight:700}
table.spec{width:100%;border-collapse:collapse;margin:8px 0;font-size:.95rem;background:var(--card);border-radius:12px;overflow:hidden}
table.spec th,table.spec td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.spec th{width:34%;font-weight:600}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin:12px 0 8px}
.cards a{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--text);transition:border-color .15s,transform .15s}
.cards a:hover{border-color:var(--papaya);transform:translateY(-1px)}
.cards strong{display:block;margin-bottom:2px}
.cards span{color:var(--muted);font-size:.88rem}
.adslot{margin:16px 0;min-height:100px;text-align:center}
.site-foot{max-width:880px;margin:0 auto;padding:8px 16px 40px;color:var(--muted);font-size:.85rem}
.site-foot a{color:var(--muted);margin-right:14px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (max-width:640px){.trust{gap:8px}.trust div{padding:10px 14px}.trust strong{margin:0;display:inline}.trust span{display:none}.story{padding:26px 20px}}

/* ---------- tool: goal bar, drop, result ---------- */
h1 em{font-style:normal;background:linear-gradient(transparent 62%,color-mix(in srgb,var(--papaya) 55%,transparent) 0);padding:0 .08em}
.goalbar{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end}
.goalbar .grow{flex:1;min-width:230px}
.goal #note{margin:12px 0 0}
details.fine{margin-top:10px}
details.fine summary,details.proof summary{cursor:pointer;color:var(--accent);font-size:.9rem;width:max-content}
details.proof{margin-top:8px}
details.proof p{margin:8px 0 0;color:var(--muted);font-size:.9rem;max-width:62ch}
.dropcard{border-style:solid}
.dropicon{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:var(--papaya);color:#1a0d06;margin-bottom:8px}
.drop strong{font-size:1.2rem;color:var(--text);letter-spacing:-.01em}
.has-img .drop{padding:14px}
.has-img .dropicon{width:34px;height:34px;margin-bottom:2px}
.has-img .dropicon svg{width:18px;height:18px}
.has-img .drop strong{font-size:1rem}
.dropfoot{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between;margin-top:12px}
.net{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted)}
.net i{width:9px;height:9px;border-radius:50%;background:var(--ok);flex:none}
.net.off i{background:var(--papaya)}
.tally{margin:10px 0 0;font-size:.88rem;color:var(--muted)}
.tally strong{color:var(--text)}
.savebar{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between;margin-bottom:14px}
.sizes{display:flex;align-items:baseline;gap:12px;font-size:clamp(1.6rem,5.5vw,2.4rem);font-weight:760;letter-spacing:-.02em;line-height:1.1}
.sizes .from{color:var(--muted);text-decoration:line-through;text-decoration-thickness:2px;text-decoration-color:var(--magenta)}
.sizes .arrow{color:var(--papaya)}
.badge{padding:6px 14px;border-radius:999px;background:var(--btn);color:var(--btn-text);font-weight:650;font-size:.9rem}
.cmp{position:relative;display:inline-block;line-height:0;max-width:100%;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:repeating-conic-gradient(#0000 0 25%,#8883 0 50%) 0 0/16px 16px}
.cmp canvas{display:block}
#out{max-width:100%;max-height:420px;width:auto;height:auto;background:#fff}
#orig{position:absolute;inset:0;width:100%;height:100%;background:#fff}
.cmp input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
.knob{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 0 1px #0004;pointer-events:none}
.knob span{position:absolute;top:50%;left:50%;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;background:var(--papaya);box-shadow:0 2px 8px #0005}
.knob span:before,.knob span:after{content:"";position:absolute;top:50%;margin-top:-5px;border:5px solid transparent}
.knob span:before{left:5px;border-right-color:#1a0d06;border-left:0}
.knob span:after{right:5px;border-left-color:#1a0d06;border-right:0}
.tag{position:absolute;top:10px;padding:3px 10px;border-radius:999px;background:#0b2340cc;color:#fff;font-size:.74rem;line-height:1.4;pointer-events:none}
.tag.l{left:10px}.tag.r{right:10px}
.cmpnote{margin:8px 0 0}
@media (max-width:640px){.dropfoot{justify-content:flex-start}.drop{padding:34px 12px}}

.fineopt{margin-top:12px}
.scale{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
.scale button{padding:5px 14px;border-radius:999px}
#wmL.dim{opacity:.5}
.wmnote{margin:4px 0 0 26px}
.orginfo{margin:10px 0 0;font-size:.88rem;color:var(--muted)}
.orginfo strong{color:var(--text)}

.tool{display:flex;flex-direction:column}
@media (max-width:640px){.tool .dropcard{order:-1}}

.net{align-items:flex-start}
.net i{margin-top:.45em}
@media (max-width:640px){
  main{padding:8px 16px 40px}
  h1{margin:12px 0 10px}
  .lead{font-size:1rem;margin-bottom:16px}
  .trust{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
  .trust div{padding:6px 14px;border:1px solid var(--line);border-radius:999px;display:flex;align-items:center;gap:8px}
  .trust div:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--royal);flex:none}
  .trust div:nth-child(2):before{background:var(--papaya)}
  .trust div:nth-child(3):before{background:var(--ocean)}
  .trust strong{font-size:.88rem;font-weight:600}
  .card{padding:16px;border-radius:14px}
  .goalbar{gap:10px}
  .goalbar .seg{width:100%}
  .goalbar .seg button{flex:1}
  .goalbar .grow{min-width:0;width:100%}
  .has-img #note,.has-img details.proof,.has-img .net,.has-img #sample{display:none}
  .has-img .dropfoot{margin-top:0}
  .btn.primary{display:block;width:100%;text-align:center}
  .sizes{font-size:1.7rem}
  .row{gap:10px}
  .row label{min-width:0;flex:1 1 140px}
  .savebar{margin-bottom:12px}
  #cropwrap{margin-left:-4px;margin-right:-4px}
}
@media (min-width:641px){
  .trust div,.trust div:nth-child(2),.trust div:nth-child(3){border-top:1px solid var(--line)}
  .trust div:before{content:"";display:block;width:28px;height:4px;border-radius:2px;background:var(--royal);margin-bottom:12px}
  .trust div:nth-child(2):before{background:var(--papaya)}
  .trust div:nth-child(3):before{background:var(--ocean)}
}