/* YardageLab styles. Mobile-first, light, print-friendly. Tokens and components: see DESIGN-SYSTEM.md.
   Motion lives at the bottom and only runs when app.js adds html.motion (it never does under prefers-reduced-motion). */

/* ---------- fonts (self-hosted, latin subset) ---------- */
@font-face{font-family:"Fraunces";src:url(fonts/fraunces-700.woff2) format("woff2");font-weight:600 800;font-style:normal;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(fonts/atkinson-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(fonts/atkinson-700.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Caveat";src:url(fonts/caveat-500.woff2) format("woff2");font-weight:400 700;font-style:normal;font-display:swap}
/* metric-matched fallbacks keep text from jumping when the web fonts arrive */
@font-face{font-family:"Fraunces Fallback";src:local("Georgia"),local("Times New Roman");size-adjust:104%;ascent-override:94%;descent-override:24%}
@font-face{font-family:"Atkinson Fallback";src:local("Arial"),local("Helvetica");size-adjust:103%;ascent-override:94%;descent-override:22%}

/* ---------- tokens ---------- */
:root{
  --bg:#FDFBF8;--paper:#FFFFFF;--cream:#FAF7F2;--cream-2:#F4EEE5;--hero:#FAF5EE;
  --line:#ECE5DA;--line-2:#E0D7C9;
  --ink:#16251F;--text:#26302D;--muted:#58625E;
  --deep:#1F4D44;--green:#2F6F62;--green-ink:#24574D;--sage-50:#E3F0EB;--sage-100:#D3E7DF;--sage:#9CC5B4;--fabric:#8FBFA9;
  --terra:#C8664A;--terra-ink:#A64E33;--mustard:#E0A84A;--blush:#F2D9CC;--blush-50:#FBEFE9;
  --warn:#7A4300;--warn-bg:#FFF4D6;
  --ring:0 0 0 4px rgba(47,111,98,.2);
  --r-sm:10px;--r:14px;--r-lg:16px;
  --shadow-menu:0 10px 30px rgba(31,77,68,.12);
  --serif:"Fraunces","Fraunces Fallback",Georgia,"Times New Roman",serif;
  --sans:"Atkinson Hyperlegible","Atkinson Fallback",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --script:"Caveat","Segoe Print","Bradley Hand",cursive;
  --ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:light;
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--text);font:400 1.125rem/1.6 var(--sans);overflow-x:clip}
img,svg{max-width:100%;height:auto}
a{color:var(--green);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{color:var(--deep)}
:focus-visible{outline:3px solid var(--green);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.12;letter-spacing:-.015em;color:var(--ink)}
h1{font-size:clamp(2.25rem,5.2vw,3.25rem);margin:.15em 0 .3em}
h2{font-size:clamp(1.6rem,3.4vw,2.15rem);margin:1.6em 0 .5em}
h3{font-size:1.3rem;margin:1.4em 0 .4em}
p,ul,ol{margin:0 0 1em}
strong{font-weight:700}
code,.formula{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:0;background:var(--deep);color:#fff;padding:.7em 1.1em;z-index:50;border-radius:0 0 10px 0}
.skip:focus{left:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:700px){.wrap{padding:0 28px}}
.script{font-family:var(--script);font-weight:500;color:var(--terra-ink);line-height:1.05}
.heart{width:20px;height:20px;flex:none}
.heart.sm{width:16px;height:16px}
.lede{font-size:1.15rem;color:var(--muted);max-width:60ch}
.checked{font-size:1rem;color:var(--muted)}
.print-only{display:none}

/* ---------- header ---------- */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:20}
.hdr{display:flex;align-items:center;gap:1rem;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--ink);flex:none}
.logo .mark{width:42px;height:42px;flex:none}
.wm{display:flex;flex-direction:column;line-height:1}
.wm-name{font:700 1.7rem/1 var(--serif);letter-spacing:-.02em;color:var(--ink)}
.wm-name b{color:var(--green);font-weight:700}
.wm-tag{font:700 .6rem/1 var(--sans);letter-spacing:.34em;text-transform:uppercase;color:var(--muted);margin-top:.42rem;padding-left:.1em}
.site-nav{display:none;flex:1;justify-content:center}
.nav-list{list-style:none;display:flex;align-items:center;gap:.4rem;margin:0;padding:0}
.nav-list>li>a,.dd>summary{display:inline-flex;align-items:center;gap:.35rem;min-height:48px;padding:0 .9rem;border-radius:999px;color:var(--text);text-decoration:none;font-size:1rem;cursor:pointer;list-style:none}
.dd>summary::-webkit-details-marker{display:none}
.nav-list>li>a:hover,.dd>summary:hover,.dd[open]>summary{background:var(--cream);color:var(--deep)}
.nav-list a[aria-current],.dd>summary.is-current{color:var(--deep);font-weight:700}
.chev{width:14px;height:14px;transition:transform .2s}
.dd[open] .chev{transform:rotate(180deg)}
.dd{position:relative}
.dd-panel{position:absolute;top:calc(100% + 8px);left:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-menu);padding:1rem 1.1rem;min-width:260px;z-index:30}
.dd-wide{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;min-width:560px;left:-1rem}
.dd-panel ul{list-style:none;margin:0;padding:0}
.dd-panel li a,.mnav-panel li a{display:block;padding:.5rem .55rem;border-radius:8px;color:var(--text);text-decoration:none;font-size:1rem}
.dd-panel li a:hover,.mnav-panel li a:hover{background:var(--sage-50);color:var(--deep)}
.dd-h{font:700 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:.2rem 0 .5rem .55rem}
.dd-h a{color:inherit;text-decoration:none}
.hdr-end{display:flex;align-items:center;gap:.4rem;margin-left:auto}
.made{display:none;align-items:center;gap:.45rem;font-size:.98rem;color:var(--text);margin-right:.6rem}
.icon-btn,.mnav>summary{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;color:var(--ink);cursor:pointer;list-style:none}
.icon-btn:hover,.mnav>summary:hover{background:var(--cream);color:var(--deep)}
.icon-btn svg,.mnav>summary svg{width:24px;height:24px}
.mnav>summary::-webkit-details-marker{display:none}
.mnav .ico-close{display:none}
.mnav[open] .ico-close{display:block}
.mnav[open] .ico-burger{display:none}
.mnav-panel{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow-menu);padding:1rem 16px 1.4rem;max-height:calc(100vh - 76px);overflow:auto}
.mnav-panel ul{list-style:none;margin:0 0 1rem;padding:0}
.mnav-panel .dd-h{margin-top:.8rem}
.mnav-plain{border-top:1px solid var(--line);padding-top:.6rem!important}
@media (min-width:960px){
  .site-nav{display:flex}
  .mnav{display:none}
  .made{display:inline-flex}
}

/* ---------- breadcrumb ---------- */
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.2rem;padding:0;margin:1.2rem 0 .4rem;font-size:.95rem;color:var(--muted)}
.breadcrumb li+li::before{content:"\203A";margin:0 .45rem 0 .2rem;color:var(--line-2);font-size:1.1em}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--deep);text-decoration:underline}
.breadcrumb [aria-current]{color:var(--ink);font-weight:700}

/* ---------- tool page layout ---------- */
.tool-top{display:grid;gap:1.5rem;margin:0 0 1.5rem}
@media (min-width:980px){.tool-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem;align-items:start}}
.tool-title{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}
.tool-title h1{margin-top:.2em}
.qb-title{width:84px;height:84px;flex:none;margin-top:.4rem}
@media (min-width:980px){.qb-title:not(.qb-show){display:none}}
.qb-show{width:64px;height:64px}

/* ---------- input card ---------- */
.panel{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.25rem}
@media (min-width:700px){.panel{padding:1.6rem 1.75rem}}
.calc-form{display:grid;gap:1.15rem}
.row{display:grid;gap:1.15rem}
@media (min-width:560px){.row{grid-template-columns:1fr 1fr}.row .field.has-icon{grid-template-columns:1fr}.row .field.has-icon .f-icon{display:none}}
.field{display:grid;gap:.9rem;align-items:start}
.field.has-icon{grid-template-columns:48px minmax(0,1fr)}
.f-icon{width:48px;height:48px;color:var(--deep);margin-top:1.85rem}
.f-body{min-width:0}
.field label,fieldset legend{display:block;font-weight:700;color:var(--ink);margin-bottom:.4rem;font-size:1.02rem}
.input-wrap{display:flex;align-items:center;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--paper);min-height:56px;transition:border-color .15s,box-shadow .15s}
.input-wrap:focus-within{border-color:var(--green);box-shadow:var(--ring)}
.input-wrap input,.input-wrap select,.input-wrap textarea{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:inherit;font-size:1.2rem;padding:.65rem .95rem;min-height:54px;border-radius:var(--r-sm)}
.input-wrap input:focus,.input-wrap select:focus,.input-wrap textarea:focus{outline:none}
.input-wrap.area{align-items:stretch}
.input-wrap textarea{resize:vertical;min-height:150px;line-height:1.5;font-size:1.1rem}
.input-wrap.select select{appearance:none;-webkit-appearance:none;padding-right:2.8rem;cursor:pointer;font-size:1.1rem;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%231F4D44' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right .95rem center/16px}
.unit{padding:0 1rem 0 .3rem;color:var(--muted);font-size:1rem}
.hint{margin:.35rem 0 0;font-size:1rem;color:var(--muted)}
fieldset{border:0;margin:0;padding:0;min-width:0}
.seg{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem 1.25rem}
.seg legend{float:left;margin:0;padding:0;width:auto;min-width:4.5rem}
.seg-pill{display:inline-flex;flex-wrap:wrap;background:var(--paper);border:1px solid var(--line-2);border-radius:999px;padding:4px}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.seg span{display:flex;align-items:center;justify-content:center;min-height:44px;padding:0 1.35rem;border-radius:999px;color:var(--text);font-size:1.02rem;transition:background .2s,color .2s}
.seg input:checked+span{background:var(--deep);color:#fff;font-weight:700}
.seg input:focus-visible+span{outline:3px solid var(--green);outline-offset:2px}
.check-label{display:flex!important;align-items:center;gap:.7rem;font-weight:400!important;min-height:48px;cursor:pointer}
.check-label input{width:24px;height:24px;accent-color:var(--deep)}
.noscript{background:var(--warn-bg);padding:.7rem 1rem;border-radius:var(--r-sm);margin:0}

/* ---------- result panel ---------- */
.result-panel{position:relative;border-radius:var(--r-lg);border:1px solid var(--sage-100);padding:1.25rem 1.25rem 1.4rem;
  background-color:var(--sage-50);
  background-image:linear-gradient(rgba(47,111,98,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(47,111,98,.07) 1px,transparent 1px);
  background-size:26px 26px;background-position:-1px -1px;scroll-margin-top:12px}
@media (min-width:700px){.result-panel{padding:1.75rem 1.9rem 1.8rem}}
.rp-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}
.rp-head h2{margin:.1rem 0 0;font-size:clamp(1.35rem,2.4vw,1.6rem);font-weight:700;color:var(--ink)}
.qb{width:76px;height:76px;flex:none;margin:-.2rem -.2rem 0 0}
.rp-body{display:grid;gap:.9rem;align-content:start}
.rp-sm{min-height:200px}.rp-md{min-height:420px}.rp-lg{min-height:560px}
.rp-noscript{color:var(--muted);margin:0}
.rp-body>p{margin:0}
.rp-kicker{font-weight:700;color:var(--green-ink);font-size:1rem;margin-top:.2rem!important}
.rp-big{line-height:1;margin:.1rem 0 0!important}
.big{display:block;font:700 1.9rem/1.1 var(--serif);color:var(--deep);letter-spacing:-.02em}
.hero-num{display:inline-block;font-size:clamp(3rem,7vw,4.6rem);line-height:1;letter-spacing:-.03em;font-variant-numeric:lining-nums}
.hero-num .u{font-size:.78em;margin-left:.06em;letter-spacing:-.02em}
.rp-plus{font:700 2rem var(--serif);color:var(--green);margin:0 .2rem;vertical-align:.6em}
.fr{display:inline-block;font-size:.62em;line-height:1;letter-spacing:0;white-space:nowrap;margin:0 .02em}
.fr sup,.fr sub{font-size:1em;line-height:1;vertical-align:baseline;position:relative}
.fr sup{top:-.62em}
.fr sub{top:.02em}
.hero-num .fr{font-size:.6em}
.rp-sub{color:var(--muted);font-size:1.02rem}
.rp-cap{text-align:center;color:var(--text);font-size:1rem}
.rp-h{font-size:1.15rem;margin:.6rem 0 0}
.sub{display:block;color:var(--muted);font-size:1rem}
.instructions{font:700 clamp(1.4rem,3vw,1.8rem)/1.35 var(--serif);color:var(--deep);margin:.1rem 0!important}
.diagram{display:block;margin:.3rem auto 0;overflow:visible}
.diagram-main{width:100%;max-width:440px;height:auto}
.diagram-row{width:100%;max-width:440px}
.diagram text{fill:var(--ink);font:700 14px var(--sans)}
.diagram text.small{font-weight:400;font-size:12px;fill:var(--muted)}
.diagram .fab{stroke:var(--deep);stroke-width:1.5}
.diagram .strip{fill:var(--fabric)}.diagram .strip.alt{fill:var(--sage)}
.diagram .seam{stroke:var(--deep);stroke-width:1.6;stroke-dasharray:5 4;fill:none}
.diagram .seam-gap{stroke:#fff;stroke-width:4;fill:none}
.diagram .dim{stroke:var(--deep);stroke-width:1.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.diagram .q{fill:none;stroke:#fff;stroke-width:1.4;stroke-dasharray:1.5 3.5;opacity:.95}
.diagram .p0{fill:var(--paper);stroke:var(--deep);stroke-width:1}
.diagram .p1{fill:var(--sage);stroke:var(--deep);stroke-width:1}
.diagram .goose{stroke:var(--deep);stroke-width:1}.diagram .g0{fill:var(--terra)}.diagram .g1{fill:var(--deep)}.diagram .g2{fill:var(--mustard)}
.diagram .cut{stroke:var(--ink);stroke-width:1.4;fill:none}
.diagram .sew{stroke:var(--terra);stroke-width:1.4;stroke-dasharray:3 3;fill:none}
.diagram .mattress{fill:rgba(255,255,255,.55);stroke:var(--deep);stroke-width:1.4;stroke-dasharray:5 4}
.diagram .pillow{fill:#fff;stroke:var(--deep);stroke-width:1}
.diagram .blk{fill:var(--sage);stroke:#fff;stroke-width:1.2}.diagram .blk.alt{fill:var(--deep)}
.diagram .side{fill:var(--terra);stroke:#fff;stroke-width:1.2}.diagram .corner{fill:var(--mustard);stroke:#fff;stroke-width:1.2}
.diagram .st{fill:var(--green)}.diagram .mark{fill:none;stroke:var(--terra);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.mini{flex:none;width:auto;height:auto;max-width:72px}
.mini .p0{fill:var(--fabric);stroke:var(--deep);stroke-width:.8}.mini .p1{fill:var(--sage);stroke:var(--deep);stroke-width:.8}
.cards{display:grid;gap:.75rem}
@media (min-width:560px){.cards.two{grid-template-columns:1fr 1fr}.cards.three{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;gap:.8rem;align-items:flex-start;border:1px solid var(--sage-100);border-radius:12px;padding:.9rem 1rem;background:rgba(255,255,255,.85)}
.card>div{min-width:0;flex:1}
.card.col{flex-direction:column;align-items:stretch}
.card.col .kv{grid-template-columns:1fr;gap:0}.card.col .kv dd{text-align:left;margin-bottom:.35rem}
.card.col .diagram{margin:.2rem auto .4rem;width:84px;height:84px}
.card.best{border:2px solid var(--green);background:#fff}
.card h3{margin:0 0 .35rem;font-size:1.08rem;line-height:1.25}
.card .big{font-size:1.65rem}
.badge{display:inline-block;font:700 .72rem/1 var(--sans);text-transform:uppercase;letter-spacing:.06em;background:var(--deep);color:#fff;border-radius:99px;padding:.32rem .55rem;vertical-align:middle;margin-left:.25rem}
.kv{display:grid;grid-template-columns:auto 1fr;gap:.2rem .8rem;margin:.5rem 0 0;font-size:1rem}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:700;text-align:right}
.error{color:var(--warn);background:var(--warn-bg);padding:.8rem 1rem;border-radius:var(--r-sm);margin:0}
.note{background:var(--blush-50);color:var(--text);border-left:4px solid var(--terra);padding:.7rem 1rem;border-radius:8px;font-size:1rem;margin:0}
.legend{font-size:.95rem;color:var(--muted);margin:0;text-align:center}
.steps{background:rgba(255,255,255,.8);border:1px solid var(--sage-100);border-radius:12px;padding:.2rem 1rem}
.steps summary{cursor:pointer;font-weight:700;padding:.75rem 0;min-height:48px}
.seq{columns:2 9rem;padding-left:1.4rem;margin:.4rem 0 .8rem}
.seq li{break-inside:avoid}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.result-panel .actions{justify-content:flex-end}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:50px;padding:.6rem 1.35rem;border-radius:999px;border:1.5px solid var(--deep);background:var(--deep);color:#fff;font:700 1.02rem var(--sans);cursor:pointer;text-decoration:none;transition:background .15s,color .15s,transform .15s}
.btn:hover{background:var(--green-ink);border-color:var(--green-ink);color:#fff}
.btn svg{width:20px;height:20px}
.btn-outline{background:var(--paper);color:var(--deep);border-color:var(--line-2)}
.btn-outline:hover{background:var(--cream);color:var(--deep);border-color:var(--deep)}

/* ---------- trust row ---------- */
.trust{list-style:none;margin:0 0 2.2rem;padding:.4rem 0;display:grid;grid-template-columns:1fr 1fr;gap:1.2rem .8rem}
.trust li{display:flex;flex-direction:column;align-items:center;text-align:center;gap:.55rem}
.trust strong{display:block;color:var(--ink);font-size:1rem;line-height:1.25}
.trust li>span>span{display:block;color:var(--muted);font-size:.92rem;line-height:1.35;margin-top:.2rem}
.t-badge{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--sage-50);flex:none}
.t-badge svg{width:30px;height:30px}
.t-diag{background:var(--cream-2)}.t-free{background:var(--blush-50)}
@media (min-width:600px){.trust{grid-template-columns:repeat(4,1fr)}}
@media (min-width:900px){
  .trust{gap:0}
  .trust li{flex-direction:row;text-align:left;gap:.9rem;padding:0 1.1rem;border-left:1px solid var(--line)}
  .trust li:first-child{border-left:0;padding-left:0}
}

/* ---------- chart card ---------- */
.chart-card{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.25rem;margin:0 0 2.4rem}
@media (min-width:700px){.chart-card{padding:1.8rem 2rem}}
.cc-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.6rem 1rem;align-items:start;margin-bottom:1.1rem}
.cc-title h2{margin:0 0 .3rem;font-size:clamp(1.5rem,3vw,2rem)}
.cc-title p{margin:0;color:var(--muted)}
.geese-row{width:120px;height:52px;grid-column:2;grid-row:1}
.cc-head .btn{grid-column:1 / -1;justify-self:start}
@media (min-width:860px){.cc-head{grid-template-columns:minmax(0,1fr) 150px auto}.geese-row{width:150px;height:64px;grid-column:2}.cc-head .btn{grid-column:3;grid-row:1}}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--paper);margin:0 0 1rem}
table{border-collapse:collapse;width:100%;font-size:1rem}
th,td{padding:.7rem .95rem;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
thead th{background:#F2EBDF;font-weight:700;color:var(--ink)}
table.chart td{text-align:center}
table.chart thead th:not(:first-child){text-align:center}
tbody th{font-weight:400}
tbody tr:last-child>*{border-bottom:0}
tbody tr.hl>*{background:var(--sage-50);font-weight:700;color:var(--deep)}
td small{display:block;color:var(--muted);font-size:.8rem;font-weight:400}
caption{text-align:left;padding:.65rem .95rem;color:var(--muted);font-size:.92rem;caption-side:bottom;white-space:normal}
.table-wrap.compact{margin:0;background:rgba(255,255,255,.85)}
.table-wrap.compact th,.table-wrap.compact td{padding:.5rem .7rem;font-size:.98rem}
.cc-note{margin:0;color:var(--muted);font-size:.95rem}
.two-tables{display:grid;gap:0 1.5rem}
@media (min-width:860px){.two-tables{grid-template-columns:1fr 1fr}}
.two-tables h3{margin-top:.6rem}
.filter{max-width:520px;margin:0 0 .4rem}

/* ---------- content ---------- */
.content{max-width:780px}
.content>h2:first-child{margin-top:.6em}
.content .formula{display:block;background:var(--cream);border:1px solid var(--line);border-radius:12px;padding:.95rem 1.1rem;margin:0 0 1.1em;white-space:pre-wrap;overflow-x:auto}
.content li{margin-bottom:.35em}
.simple-wrap{display:grid;gap:2rem;margin-bottom:2rem}
@media (min-width:980px){.simple-wrap{grid-template-columns:minmax(0,1fr) 340px;align-items:start}}

/* ---------- FAQ ---------- */
.faq{margin:2.6rem 0 2.4rem}
.faq-head{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1rem}
.faq-head h2{margin:0}
.faq-deco{display:none;align-items:center;gap:.8rem}
.faq-deco .spool{width:40px;height:60px}
.faq-deco .script{font-size:1.65rem;transform:rotate(-8deg)}
@media (min-width:760px){.faq-deco{display:flex}}
.faq-list{display:grid;gap:.6rem}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:1rem;cursor:pointer;list-style:none;padding:1rem 1.25rem;min-height:56px;font-weight:700;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .chev{width:18px;height:18px;flex:none;color:var(--deep)}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq summary:hover{color:var(--deep)}
.faq-a{padding:0 1.25rem 1rem}
.faq-a p{margin:0}

/* ---------- tool cards (home, hubs, related) ---------- */
.tool-grid{list-style:none;padding:0;margin:0 0 1rem;display:grid;gap:1rem;grid-template-columns:1fr}
@media (min-width:480px){.tool-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:780px){.tool-grid{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1040px){.tool-grid{grid-template-columns:repeat(4,1fr)}}
.tool-card a{position:relative;display:flex;flex-direction:column;height:100%;padding:1.3rem 1.3rem 1.4rem;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper);text-decoration:none;color:var(--text);transition:transform .25s var(--ease),border-color .2s,background .2s}
.tool-card.featured a{background:var(--sage-50);border-color:var(--sage-100)}
.tool-card a:hover{border-color:var(--sage);transform:translateY(-2px)}
.c-icon{width:60px;height:60px;margin-bottom:1rem;transition:transform .35s var(--ease)}
.tool-card a:hover .c-icon{transform:rotate(-5deg) scale(1.04)}
.tc-go{position:absolute;top:1.25rem;right:1.25rem;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--line-2);background:var(--paper);color:var(--deep)}
.tc-go svg{width:16px;height:16px}
.tool-card strong{display:block;font:700 1.28rem/1.18 var(--serif);color:var(--ink);margin-bottom:.4rem;letter-spacing:-.01em}
.tc-desc{color:var(--muted);font-size:1rem;line-height:1.45}
.related{margin:0 0 2rem}

/* ---------- homepage ---------- */
.hero{position:relative;display:grid;gap:1.5rem;padding:2rem 0 2.4rem;margin-bottom:1.5rem;align-items:center}
.hero::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:100vw;transform:translateX(-50%);background:var(--hero);z-index:-1}
@media (min-width:900px){.hero{grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:2rem;padding:3.2rem 0 3.4rem}}
.hero h1{font-size:clamp(2.9rem,7.4vw,5.3rem);line-height:.98;letter-spacing:-.035em;margin:0 0 1.2rem}
.hero h1 span{display:block;color:var(--deep)}
.hero .lede{font-size:1.2rem;color:var(--text);max-width:34em}
.hero-art{position:relative}
.mosaic{display:block;width:100%;height:auto;aspect-ratio:640/520}
.hero-404 .hero-copy{max-width:640px}
.find{display:flex;align-items:center;gap:.4rem;background:var(--paper);border:1px solid var(--line-2);border-radius:999px;padding:6px 6px 6px 1.15rem;max-width:520px;margin-top:1.6rem;transition:box-shadow .15s,border-color .15s}
.find:focus-within{border-color:var(--green);box-shadow:var(--ring)}
.find-ico{width:22px;height:22px;color:var(--ink);flex:none}
.find input{flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:1.1rem;min-height:48px;color:var(--ink);padding:0 .3rem}
.find input:focus{outline:none}
.find-go{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;border:0;background:var(--deep);color:#fff;cursor:pointer;flex:none}
.find-go:hover{background:var(--green-ink)}
.find-go svg{width:22px;height:22px}
.find-status{min-height:1.6em;margin:.5rem 0 0 1.2rem;color:var(--muted);font-size:1rem}
.popular{font-size:1rem}
.popular>span{font-weight:700;color:var(--ink);margin-right:.7rem}
.popular ul{display:inline;list-style:none;margin:0;padding:0}.popular li{display:inline}
.popular li+li::before{content:"\2022";color:var(--terra);margin:0 .6rem}
.popular a{display:inline-block;padding:.25rem 0;min-height:32px}
.tools-sec{margin:0 0 2.6rem}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:.4rem 1.5rem;margin-bottom:1.2rem}
.sec-head h2{margin:0 0 .25rem;font-size:clamp(1.9rem,4vw,2.5rem)}
.sec-head p{margin:0;color:var(--muted)}
.view-all{display:inline-flex;align-items:center;gap:.4rem;font-size:1rem;text-decoration:none;min-height:44px}
.view-all svg{width:16px;height:16px}
.view-all:hover{text-decoration:underline}
.banner{display:grid;gap:1rem;align-items:center;background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.4rem;margin:0 0 2.6rem}
.banner .stack{width:100%;max-width:240px}
.banner h2{margin:0 0 .3rem;font-size:clamp(1.6rem,3.4vw,2.1rem)}
.banner p{margin:0;color:var(--muted)}
.banner-script{font-family:var(--script);color:var(--terra-ink)!important;font-size:1.7rem;line-height:1.05;transform:rotate(-8deg);display:none}
@media (min-width:760px){.banner{grid-template-columns:220px minmax(0,1fr) auto;padding:1.4rem 2rem}.banner-script{display:block}}
.why{margin-bottom:1rem}
.hub-head{max-width:820px;margin-bottom:1.6rem}

/* ---------- contact ---------- */
.contact-form{display:grid;gap:1.15rem;margin:0 0 1rem}
.opt{font-weight:400;color:var(--muted)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.field-err{color:#9A3412;font-weight:700;margin:.4rem 0 0;font-size:1rem}
[aria-invalid="true"]{caret-color:#9A3412}
.input-wrap:has([aria-invalid="true"]){border-color:#B45309;box-shadow:0 0 0 3px rgba(180,83,9,.15)}
.form-status{border-radius:12px;padding:1rem 1.2rem;margin:0 0 1rem;font-size:1.05rem}
.form-status.ok{background:var(--sage-50);border:1px solid var(--sage);color:var(--deep)}
.form-status.err{background:var(--blush-50);border:1px solid var(--terra);color:#7C2D12}
.form-status.dev{background:var(--warn-bg);border:1px solid #E7C27A;color:var(--warn)}
.form-status.wait{background:var(--cream);border:1px solid var(--line)}
.contact-aside .panel{position:relative}
.contact-aside h2{margin:0 0 .6rem;font-size:1.4rem}
.ticks{list-style:none;padding:0;margin:0 0 1rem}
.ticks li{position:relative;padding-left:1.7rem;margin-bottom:.6rem}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:12px;height:7px;border-left:2.5px solid var(--green);border-bottom:2.5px solid var(--green);transform:rotate(-45deg)}
.contact-aside .spool{width:38px;height:56px;float:left;margin-right:.8rem}
.contact-aside .script{font-size:1.6rem;margin:.4rem 0 0}

/* ---------- footer ---------- */
.site-footer{margin-top:3rem;background:var(--bg);font-size:1rem}
.thread-rule{display:block;width:100%;height:24px}
.ft-top{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 2rem;padding:1.4rem 0 1.2rem}
.ft-nav ul{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;gap:.2rem 1.2rem}
.ft-nav a{color:var(--text);text-decoration:none;display:inline-block;padding:.5rem 0}
.ft-nav a:hover{color:var(--deep);text-decoration:underline}
.ft-motto{display:flex;align-items:center;gap:.45rem;margin:0;color:var(--text)}
.ft-sprig{width:42px;height:70px;margin-left:auto;transform:rotate(18deg)}
@media (min-width:980px){.ft-nav{margin-left:auto}.ft-sprig{margin-left:0}}
.ft-cols{display:grid;gap:1.2rem;padding:1.2rem 0 2rem;border-top:1px solid var(--line)}
@media (min-width:760px){.ft-cols{grid-template-columns:1fr 1fr 1.3fr}}
.ft-cols h2{font:700 .82rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;margin:.4rem 0 .7rem}
.ft-cols h2 a{color:var(--muted);text-decoration:none}
.ft-cols ul{list-style:none;margin:0;padding:0}
.ft-cols li a{display:inline-block;padding:.22rem 0;color:var(--text);text-decoration:none;font-size:.98rem}
.ft-cols li a:hover{color:var(--deep);text-decoration:underline}
.ft-about p{color:var(--muted);margin:0 0 .6rem;font-size:.98rem}

/* ---------- mobile sticky action bar (tool pages) ---------- */
.sticky-bar{display:none}
@media (max-width:759px){
  body.tool{padding-bottom:84px}
  .js .sticky-bar{display:flex;gap:.6rem;position:fixed;left:12px;right:12px;bottom:12px;z-index:15;padding:8px;background:rgba(253,251,248,.94);border:1px solid var(--line);border-radius:999px;box-shadow:0 6px 24px rgba(31,77,68,.14)}
  .sticky-bar .btn{flex:1;min-height:48px}
}

/* ---------- batch-2 tool diagrams, conditional fields, sources ---------- */
.calc-form [hidden],.rp-body [hidden]{display:none!important}
@media (min-width:560px){.row:has(>[hidden]){grid-template-columns:1fr}.row:has(>[hidden]) .field.has-icon{grid-template-columns:48px minmax(0,1fr)}.row:has(>[hidden]) .field.has-icon .f-icon{display:block}}
.diagram .halo{paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round}
.diagram .bd0{fill:var(--terra)}.diagram .bd1{fill:var(--mustard)}.diagram .bd2{fill:var(--deep)}
.diagram .band{stroke:#fff;stroke-width:1}
.diagram .miter{stroke:#fff;stroke-width:1.2;opacity:.9}
.diagram .bat{fill:#FFFDF9;stroke:var(--deep);stroke-width:1.4;stroke-dasharray:5 4}
.diagram .pkg{fill:none;stroke:var(--terra);stroke-width:1.8;stroke-dasharray:2 4;stroke-linecap:round}
.diagram .t-a{fill:var(--terra)}.diagram .t-b{fill:var(--sage)}.diagram .t-c{fill:var(--deep)}.diagram .t-d{fill:var(--blush)}.diagram .t-e{fill:var(--mustard)}
.diagram .tri{stroke:#fff;stroke-width:1.2}.diagram .ov{opacity:.62}
.diagram .flow{stroke:var(--muted);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.diagram .rot{fill:var(--sage);stroke:var(--deep);stroke-width:1}
.diagram .pc{stroke:var(--deep);stroke-width:1}
.diagram .ball{fill:var(--sage);stroke:var(--green);stroke-width:1.4}.diagram .ball.spare{fill:#fff;stroke-dasharray:3 2.5}
.diagram .wind{fill:none;stroke:var(--green);stroke-width:1.1;opacity:.75}
.diagram .range{fill:var(--sage-100)}.diagram .range-in{fill:var(--sage)}.diagram .mark-t{fill:var(--terra)}
.diagram .hatk{stroke:var(--terra-ink);stroke-width:1.8;stroke-linejoin:round}
.diagram .rib{fill:#fff;stroke:var(--terra-ink);stroke-width:1.8}
.diagram .ribl{stroke:var(--terra);stroke-width:1.4}
.diagram .crownl{stroke:var(--terra);stroke-width:1.2;fill:none;opacity:.8}
.diagram .head{fill:none;stroke:var(--muted);stroke-width:1.4;stroke-dasharray:4 4}
.diagram .circ{fill:none;stroke:var(--deep);stroke-width:1.6}
.diagram .lk{stroke:var(--sage);stroke-width:.9;fill:none;stroke-linejoin:round}.diagram .lk.dec{stroke:var(--terra);stroke-width:2}
.diagram .st.dec{fill:var(--terra)}
.diagram .tick{stroke:var(--deep);stroke-width:1.2}
.badge.est{background:var(--terra-ink)}
.range-line{font-weight:700;color:var(--deep)}
.sources{max-width:780px;margin:0 0 2rem;font-size:.95rem;color:var(--muted)}
.sources h2{font-size:1.15rem;margin:0 0 .4rem;font-family:var(--sans);letter-spacing:0}
.sources ul{margin:0;padding-left:1.2rem}
.sources li{margin-bottom:.25rem}
.sources a{color:var(--muted)}
.sources a:hover{color:var(--deep)}

/* =====================================================================
   Motion (storyboard). Only under html.motion, which app.js sets when the user
   has not asked for reduced motion. Everything animates transform/opacity, except
   the stitched seams, which draw via stroke-dashoffset on a mask.
   Hooks: .fx-l .fx-r .fx-up .fx-pop .fx-fade .fx-draw (+ .d1-.d4 delays) inside .diagram.fx-in / .fx-re
   ===================================================================== */
.diagram .fx-l,.diagram .fx-r,.diagram .fx-up,.diagram .fx-pop,.mosaic .mz,.sway,.qb{transform-box:fill-box}
.diagram .fx-draw,.mosaic .fx-draw{stroke-dasharray:1 1;stroke-dashoffset:0;fill:none}
.motion .diagram.fx-in .fx-l{animation:fxL .7s var(--ease) both}
.motion .diagram.fx-in .fx-r{animation:fxR .7s var(--ease) both}
.motion .diagram.fx-in .fx-up{animation:fxUp .6s var(--ease) both}
.motion .diagram.fx-in .fx-pop{animation:fxPop .55s var(--ease) both;transform-origin:center}
.motion .diagram.fx-in .fx-fade{animation:fxFade .5s ease both;animation-delay:.75s}
.motion .diagram.fx-in .fx-draw{animation:fxDraw .8s ease-in-out both;animation-delay:.55s}
.motion .diagram.fx-in .d1{animation-delay:.7s}.motion .diagram.fx-in .d2{animation-delay:.9s}
.motion .diagram.fx-in .fx-pop.d1{animation-delay:.06s}.motion .diagram.fx-in .fx-pop.d2{animation-delay:.12s}.motion .diagram.fx-in .fx-pop.d3{animation-delay:.18s}
.motion .diagram.fx-re .fx-l{animation:fxLs .45s var(--ease) both}
.motion .diagram.fx-re .fx-r{animation:fxRs .45s var(--ease) both}
.motion .diagram.fx-re .fx-up,.motion .diagram.fx-re .fx-pop{animation:fxUps .4s var(--ease) both}
.motion .diagram.fx-re .fx-draw{animation:fxDraw .5s ease-in-out .15s both}
.motion .diagram.fx-re .fx-fade{animation:fxFade .35s ease .3s both}
.motion .qb.fx-in{animation:qbIn .9s var(--ease) .35s both;transform-origin:center}
.motion .qb.fx-re{animation:qbRe .6s var(--ease) both;transform-origin:center}
@keyframes fxL{from{transform:translateX(-46px);opacity:0}to{transform:none;opacity:1}}
@keyframes fxR{from{transform:translateX(46px);opacity:0}to{transform:none;opacity:1}}
@keyframes fxUp{from{transform:translateY(14px);opacity:0}to{transform:none;opacity:1}}
@keyframes fxPop{from{transform:scale(.4);opacity:0}to{transform:none;opacity:1}}
@keyframes fxLs{from{transform:translateX(-12px);opacity:.4}to{transform:none;opacity:1}}
@keyframes fxRs{from{transform:translateX(12px);opacity:.4}to{transform:none;opacity:1}}
@keyframes fxUps{from{transform:translateY(6px);opacity:.5}to{transform:none;opacity:1}}
@keyframes fxFade{from{opacity:0}to{opacity:1}}
@keyframes fxDraw{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes qbIn{from{transform:rotate(-90deg) scale(.6);opacity:0}70%{transform:rotate(6deg) scale(1.02);opacity:1}to{transform:none}}
@keyframes qbRe{0%{transform:none}35%{transform:rotate(-10deg)}70%{transform:rotate(4deg)}to{transform:none}}
/* hero mosaic: tiles assemble, thread draws, leaves sway */
.motion .mosaic.play .mz{animation:mzIn .7s var(--ease) both;animation-delay:calc(var(--i,0) * 26ms + 80ms);transform-origin:center}
.motion .mosaic.play .fx-draw{animation:fxDraw 1.8s ease-in-out 1.1s both}
.motion .mosaic.play .hero-script{animation:fxFade 1s ease 1.4s both}
.motion .sway{animation:sway 7s ease-in-out infinite alternate;transform-origin:50% 100%}
.motion .sway-b{animation-duration:8.5s;animation-delay:-3s}
@keyframes mzIn{from{opacity:0;transform:scale(.35) rotate(-35deg)}to{opacity:1;transform:none}}
@keyframes sway{from{transform:rotate(-2.2deg)}to{transform:rotate(2.2deg)}}
/* scroll reveal: fade + rise 12px, staggered children for card grids */
.motion .reveal.pending:not(.stagger),.motion .reveal.pending.stagger>*{opacity:0;transform:translateY(12px)}
.motion .reveal:not(.stagger),.motion .reveal.stagger>*{transition:opacity .55s ease,transform .55s var(--ease);transition-delay:calc(var(--i,0) * 70ms)}
.motion .reveal.pending.in:not(.stagger),.motion .reveal.pending.in.stagger>*{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .tool-card a:hover,.tool-card a:hover .c-icon{transform:none}
}

/* ---------- print: result + chart only, black-and-white friendly ---------- */
@media print{
  @page{margin:14mm}
  :root{--bg:#fff;--paper:#fff;--cream:#fff;--sage-50:#fff;--sage-100:#999;--line:#bbb;--line-2:#999;--text:#000;--ink:#000;--muted:#333;--deep:#000;--green:#000}
  body{font-size:11pt;background:#fff;color:#000;padding:0!important}
  .site-header,.site-footer,.breadcrumb,.actions,.related,.faq,.sources,.skip,.no-print,.hint,.calc-form,.tool .lede,.trust,.tool .content,.sticky-bar,.cc-head .btn,.geese-row,.qb,.qb-title,
  .hero,.tools-sec,.banner,.why,.find,.popular,.filter,.rp-noscript,.contact-aside,.contact-form,.mnav{display:none!important}
  .print-only{display:block}
  .tool-top{display:block}
  .result-panel{background:#fff!important;border:1px solid #999;break-inside:auto;margin-bottom:10px;padding:12px}
  .rp-big,.rp-sub,.rp-cap,.rp-h{break-after:avoid}
  .rp-body svg.diagram{max-height:62mm;width:auto;max-width:100%;display:block;margin:4px auto}
  .tool-top,.wrap,main{min-height:0!important;height:auto!important}
  .rp-body{min-height:0!important}
  .hero-num{font-size:30pt}
  .card,.diagram,tr{break-inside:avoid}
  .chart-card{break-inside:auto}
  .chart-card{border:1px solid #999;padding:12px;margin:10px 0 0}
  thead th{background:#eee!important}
  tbody tr.hl>*{background:#eee!important;color:#000}
  .reveal,.reveal *{opacity:1!important;transform:none!important}
  a{color:#000;text-decoration:none}
  h1{font-size:20pt;margin:0 0 6px}
  h2{break-after:avoid}
  .print-inputs{font-size:10pt;color:#000;margin:6px 0}
}