:root{
  --paper:        #f7f8f6;   
  --card:         #ffffff;   
  --sand:         #ece7dd;   
  --ink:          #1f2a30;   
  --ink-soft:     #475158;   
  --line:         #d4dbd6;   
  --mint:         #2f7d6b;   
  --mint-deep:    #205646;   
  --mint-wash:    #e4f0ea;   
  --sky:          #5a7d8c;   
  --focus:        #ffcf5c;   
   --maxw: 74rem;
  --measure: 38rem;          
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(31,42,48,.05), 0 12px 30px -18px rgba(31,42,48,.28);
  --shadow-soft: 0 1px 2px rgba(31,42,48,.04), 0 8px 22px -16px rgba(31,42,48,.22);
   --display: "Fraunces", Georgia, serif;
  --body: "Hanken Grotesk", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
   --step: clamp(1rem, .9rem + .4vw, 1.125rem);
}
 *,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:
    radial-gradient(120% 80% at 80% -10%, var(--mint-wash) 0%, rgba(228,240,234,0) 55%),
    radial-gradient(120% 70% at 0% 0%, #fffefb 0%, rgba(255,254,251,0) 50%),
    var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:var(--step);
  line-height:1.65;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{ max-width:100%; display:block; }
 h1,h2,h3,h4{ font-family:var(--display); color:var(--ink); line-height:1.12; font-weight:500; letter-spacing:-.01em; }
h2{ font-size:clamp(1.55rem, 1.2rem + 1.7vw, 2.4rem); margin:0 0 .6rem; }
h3{ font-size:clamp(1.2rem, 1.05rem + .7vw, 1.55rem); margin:0 0 .4rem; font-weight:600; }
h4{ font-size:1.1rem; margin:0 0 .35rem; font-weight:600; font-family:var(--body); letter-spacing:0; }
p{ margin:0 0 1.1rem; max-width:var(--measure); }
a{ color:var(--mint-deep); text-underline-offset:3px; text-decoration-thickness:1px; }
a:hover{ text-decoration-thickness:2px; }
strong{ font-weight:700; }
 .visually-hidden{
  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-link{
  position:absolute; left:1rem; top:-3.5rem; z-index:1000;
  background:var(--ink); color:#fff; padding:.75rem 1.1rem; border-radius:10px;
  font-weight:600; transition:top .18s ease; text-decoration:none;
}
.skip-link:focus{ top:1rem; }
 :where(a,button,summary,[tabindex]):focus-visible{
  outline:3px solid var(--focus);
  outline-offset:3px;
  border-radius:6px;
}
 .wrap{ width:min(100% - 2.5rem, var(--maxw)); margin-inline:auto; }
.prose{ width:min(100% - 2.5rem, 46rem); margin-inline:auto; }
 section[id]{ scroll-margin-top:6rem; }
 .site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(247,248,246,.82);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; gap:1rem;
  min-height:4rem; padding-block:.5rem;
}
.brand{
  display:inline-flex; align-items:center; gap:.6rem;
  font-family:var(--display); font-weight:600; font-size:1.05rem; color:var(--ink);
  text-decoration:none; letter-spacing:-.01em;
}
.brand .mark{
  width:30px; height:30px; flex:none;
}
.nav-links{
  margin-left:auto;
  display:flex; gap:.35rem; flex-wrap:wrap;
  list-style:none; padding:0;
}
.nav-links a{
  display:inline-block; padding:.4rem .7rem; border-radius:999px;
  color:var(--ink-soft); text-decoration:none; font-size:.92rem; font-weight:500;
}
.nav-links a:hover{ background:var(--mint-wash); color:var(--mint-deep); }
 .nav-toggle{ display:none; }
 .hero{
  position:relative;
  padding-block:clamp(2.5rem,1.5rem + 5vw,5.5rem) clamp(2rem,1rem + 3vw,3.5rem);
}
.hero-grid{
  display:grid; gap:clamp(1.5rem,1rem + 3vw,3rem);
  grid-template-columns:1.05fr .95fr; align-items:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--body); font-weight:600; font-size:.8rem;
  text-transform:uppercase; letter-spacing:.14em; color:var(--mint-deep);
  background:var(--mint-wash); padding:.35rem .7rem; border-radius:999px;
  margin-bottom:1.1rem;
}
.eyebrow::before{
  content:""; width:.5rem; height:.5rem; border-radius:50%; background:var(--mint);
}
.hero h1{
  font-size:clamp(2.3rem, 1.6rem + 4.2vw, 4.1rem);
  line-height:1.04; margin:0 0 1.1rem; font-weight:500; letter-spacing:-.02em;
}
.hero h1 .accent{ color:var(--mint-deep); font-style:italic; }
.hero-lead{ font-size:clamp(1.05rem,1rem + .4vw,1.22rem); color:var(--ink-soft); max-width:34rem; }
.hero-cta{ display:flex; gap:.8rem; flex-wrap:wrap; margin-top:1.6rem; }
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-weight:600; font-size:1rem; text-decoration:none;
  padding:.8rem 1.3rem; border-radius:999px; border:1.5px solid transparent;
  cursor:pointer; transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary{ background:var(--mint-deep); color:#fff; }
.btn-primary:hover{ transform:translateY(-1px); background:#18493b; }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--mint); color:var(--mint-deep); background:var(--card); }
 .tldr{
  background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius); padding:1.4rem 1.5rem; box-shadow:var(--shadow-soft);
  margin-top:1.6rem;
}
.tldr h2{
  font-family:var(--body); font-size:.82rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--mint-deep); margin:0 0 .6rem; font-weight:700;
}
.tldr p{ margin:0; font-size:.98rem; color:var(--ink-soft); max-width:none; }
 figure{ margin:0; }
.figure-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--shadow);
}
.ph{
  position:relative; width:100%; background:
    repeating-linear-gradient(135deg, rgba(47,125,107,.05) 0 14px, rgba(47,125,107,.09) 14px 28px),
    var(--mint-wash);
  display:grid; place-items:center; color:var(--mint-deep);
}
.ph picture{ display:contents; }
.ph img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  background:transparent;
  color:transparent; font-size:0;   
}

.ph-label{
  position:relative; z-index:1;
  text-align:center; padding:1.25rem; max-width:30rem;
  pointer-events:none;
}
.ph-label .pin{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:var(--body); font-weight:700; font-size:.78rem; letter-spacing:.04em;
  background:#fff; color:var(--mint-deep); border:1px solid var(--line);
  padding:.3rem .6rem; border-radius:999px; margin-bottom:.6rem;
}
.ph-label .fname{ font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:.82rem; word-break:break-word; }
.ph-label .desc{ font-size:.9rem; color:var(--ink-soft); margin:.4rem 0 0; max-width:none; }
.ph-label .ratio{ font-size:.75rem; color:var(--sky); margin-top:.45rem; font-weight:600; letter-spacing:.06em; }

.ph.is-loaded .ph-label{ display:none; }
 .ratio-16x9{ aspect-ratio:16/9; }
.ratio-4x3{ aspect-ratio:4/3; }
.ratio-3x2{ aspect-ratio:3/2; }
.ratio-1x1{ aspect-ratio:1/1; }
 figcaption{
  font-size:.85rem; color:var(--ink-soft); padding:.7rem .25rem 0; line-height:1.5;
}
figcaption .credit{ color:var(--sky); }
 .band{ padding-block:clamp(2.6rem,1.8rem + 3.5vw,4.5rem); }
.band + .band{ padding-top:0; }
.section-head{ max-width:var(--measure); margin-bottom:1.6rem; }
.section-head .kicker{
  display:block; font-size:.8rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--mint-deep); font-weight:700; margin-bottom:.5rem;
}
 .lead-note{ color:var(--ink-soft); }
 .supplies{
  list-style:none; padding:0; margin:0 0 1.4rem;
  display:grid; gap:.6rem; grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));
  max-width:none;
}
.supplies li{
  display:flex; gap:.7rem; align-items:flex-start;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:.8rem .9rem; font-size:.96rem; box-shadow:var(--shadow-soft);
}
.supplies li::before{
  content:""; flex:none; width:1.35rem; height:1.35rem; margin-top:.15rem;
  border-radius:6px; background:var(--mint-wash);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23205646' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:center;
}
.callout{
  background:var(--sand); border-radius:var(--radius); padding:1.2rem 1.3rem;
  border-left:5px solid var(--mint);
}
.callout p:last-child{ margin-bottom:0; }
.callout p{ max-width:none; }
 .steps{ display:grid; gap:1.1rem; counter-reset:step; }
.step{
  display:grid; grid-template-columns:auto 1fr; gap:1.1rem 1.3rem;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:1.4rem 1.5rem; box-shadow:var(--shadow-soft);
  position:relative;
}
.step-num{
  grid-row:1 / span 2;
  width:3rem; height:3rem; flex:none;
  display:grid; place-items:center;
  font-family:var(--display); font-weight:600; font-size:1.35rem;
  color:var(--mint-deep); background:var(--mint-wash);
  border-radius:50%;
}
.step h3{ align-self:center; margin:0; }
.step .step-body{ grid-column:2; }
.step .step-body > :last-child{ margin-bottom:0; }
.step .step-body p{ max-width:none; }
.step ol, .step ul{ max-width:none; }
 ol.method{
  list-style:none; counter-reset:m; padding:0; margin:0 0 1.1rem; display:grid; gap:.55rem;
}
ol.method li{
  counter-increment:m; position:relative; padding-left:2.4rem; min-height:1.6rem;
}
ol.method li::before{
  content:counter(m); position:absolute; left:0; top:-.05rem;
  width:1.6rem; height:1.6rem; display:grid; place-items:center;
  font-family:var(--body); font-weight:700; font-size:.85rem;
  color:var(--mint-deep); background:var(--mint-wash); border-radius:7px;
}
 .table-scroll{
  overflow-x:auto; -webkit-overflow-scrolling:touch;
  border:1px solid var(--line); border-radius:var(--radius); background:var(--card);
  box-shadow:var(--shadow-soft);
}
table{
  border-collapse:collapse; width:100%; min-width:46rem; font-size:.94rem;
}
caption{
  text-align:left; padding:1rem 1.1rem .25rem; color:var(--ink-soft);
  font-size:.85rem; caption-side:top;
}
thead th{
  text-align:left; font-family:var(--body); font-weight:700; font-size:.82rem;
  letter-spacing:.04em; text-transform:uppercase; color:var(--mint-deep);
  background:var(--mint-wash); padding:.85rem 1.1rem; vertical-align:bottom;
  border-bottom:2px solid var(--line);
}
tbody th, tbody td{ padding:.85rem 1.1rem; border-bottom:1px solid var(--line); vertical-align:top; text-align:left; }
tbody th[scope="row"]{ font-weight:700; color:var(--ink); width:11rem; }
tbody tr:last-child th, tbody tr:last-child td{ border-bottom:0; }
tbody tr:nth-child(even){ background:#fbfcfb; }
 .stain-cards{
  display:grid; gap:1.2rem; grid-template-columns:repeat(auto-fit,minmax(17rem,1fr));
}
.stain-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:1.4rem 1.5rem; box-shadow:var(--shadow-soft);
}
.stain-card h2{ font-size:clamp(1.2rem,1.05rem + .7vw,1.55rem); font-weight:600; margin-bottom:.5rem; }
.stain-card p:last-child{ margin-bottom:0; }
.stain-card p{ max-width:none; font-size:.96rem; }
 .split{ display:grid; gap:1.4rem; grid-template-columns:1fr 1fr; align-items:start; }
 .accordion{ display:grid; gap:.7rem; }
details.acc{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  box-shadow:var(--shadow-soft); overflow:hidden;
}
details.acc summary{
  cursor:pointer; list-style:none; padding:1rem 1.2rem; font-weight:600;
  display:flex; align-items:center; gap:.7rem;
}
details.acc summary::-webkit-details-marker{ display:none; }
details.acc summary::after{
  content:""; margin-left:auto; width:1.1rem; height:1.1rem; flex:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23205646' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:center; transition:transform .2s ease;
}
details.acc[open] summary::after{ transform:rotate(180deg); }
details.acc .acc-body{ padding:0 1.2rem 1.2rem; }
details.acc .acc-body > :last-child{ margin-bottom:0; }
details.acc .acc-body p{ max-width:none; }
 .checklist{ list-style:none; padding:0; margin:0 0 1.1rem; display:grid; gap:.5rem; max-width:var(--measure); }
.checklist.cols{ max-width:none; grid-template-columns:repeat(auto-fill,minmax(16rem,1fr)); }
.checklist li{ position:relative; padding-left:1.7rem; }
.checklist li::before{
  content:""; position:absolute; left:0; top:.55em; width:.55rem; height:.55rem;
  border-radius:50%; background:var(--mint); box-shadow:0 0 0 4px var(--mint-wash);
}
.warnlist li::before{ background:#b5532f; box-shadow:0 0 0 4px #f6e3da; }
 .faq{ display:grid; gap:.7rem; }
.faq details{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  box-shadow:var(--shadow-soft);
}
.faq summary{
  cursor:pointer; list-style:none; padding:1.1rem 1.3rem;
  font-family:var(--display); font-weight:600; font-size:1.08rem; color:var(--ink);
  display:flex; align-items:center; gap:.8rem;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:"+"; margin-left:auto; font-family:var(--body); font-weight:400; font-size:1.5rem;
  color:var(--mint-deep); line-height:1; transition:transform .2s ease;
}
.faq details[open] summary::after{ content:"–"; }
.faq .faq-body{ padding:0 1.3rem 1.2rem; }
.faq .faq-body p{ margin:0; max-width:none; color:var(--ink-soft); }
 .takeaway{
  background:linear-gradient(135deg, var(--mint-deep), #18493b);
  color:#eaf3ef; border-radius:var(--radius); padding:clamp(1.8rem,1.2rem + 3vw,3rem);
  position:relative; overflow:hidden;
}
.takeaway h2{ color:#fff; }
.takeaway p{ color:#dcebe4; max-width:46rem; margin-bottom:0; font-size:1.08rem; }
.takeaway::after{
  content:""; position:absolute; right:-3rem; bottom:-3rem; width:14rem; height:14rem;
  border-radius:50%; background:radial-gradient(circle at 30% 30%, rgba(255,255,255,.16), rgba(255,255,255,0) 70%);
}
 .resources{
  display:grid; gap:.9rem; grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));
  list-style:none; padding:0; margin:1.4rem 0 0;
}
.resources a{
  display:flex; gap:.85rem; align-items:center;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:1rem 1.1rem; text-decoration:none; color:var(--ink);
  box-shadow:var(--shadow-soft); transition:transform .15s ease, border-color .15s ease;
}
.resources a:hover{ transform:translateY(-2px); border-color:var(--mint); }
.resources .ico{
  flex:none; width:2.4rem; height:2.4rem; border-radius:10px;
  display:grid; place-items:center; background:var(--mint-wash); color:var(--mint-deep);
  font-family:var(--display); font-weight:600; font-size:1.05rem;
}
.resources .r-name{ font-weight:600; font-size:.98rem; }
.resources .r-host{ display:block; font-size:.8rem; color:var(--sky); }
 .related{ padding-block:clamp(2.6rem,1.8rem + 3.5vw,4.5rem); }
.related-grid{
  display:grid; gap:.9rem; margin:1.4rem 0 0; padding:0; list-style:none;
  grid-template-columns:repeat(auto-fill,minmax(15.5rem,1fr));
}
.related-grid a{
  display:flex; gap:.9rem; align-items:center;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:.95rem 1.05rem; text-decoration:none; color:var(--ink);
  box-shadow:var(--shadow-soft);
  transition:transform .15s ease, border-color .15s ease, background .15s ease;
}
.related-grid a:hover{ transform:translateY(-2px); border-color:var(--mint); background:#fbfcfb; }
.related-grid .tile-ico{
  flex:none; width:2.6rem; height:2.6rem; border-radius:10px;
  display:grid; place-items:center; background:var(--mint-wash); color:var(--mint-deep);
}
.related-grid .tile-name{ font-weight:600; font-size:.98rem; line-height:1.3; }
.related-grid .tile-host{ display:block; font-size:.8rem; color:var(--sky); margin-top:.15rem; }
.related-note{ color:var(--ink-soft); font-size:.95rem; margin-top:1.1rem; }
 .site-footer{
  margin-top:clamp(3rem,2rem + 4vw,5rem);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(236,231,221,.4), rgba(236,231,221,0));
}
.footer-inner{ padding-block:2.5rem; display:grid; gap:1.6rem; }
.footer-top{ display:flex; flex-wrap:wrap; gap:1.5rem; justify-content:space-between; align-items:start; }
.footer-top p{ max-width:30rem; color:var(--ink-soft); font-size:.95rem; margin:0; }
.footer-note{ font-size:.82rem; color:var(--sky); }
 @media (max-width:860px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-figure{ order:-1; }
  .split{ grid-template-columns:1fr; }
  .nav-links{
    position:fixed; inset:4rem 0 auto 0;
    flex-direction:column; gap:0; background:var(--paper);
    border-bottom:1px solid var(--line); padding:.5rem 1.25rem 1rem;
    box-shadow:var(--shadow); display:none;
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ padding:.7rem .4rem; border-radius:8px; }
  .nav-toggle{
    display:inline-flex; align-items:center; gap:.5rem; margin-left:auto;
    background:var(--card); border:1px solid var(--line); border-radius:999px;
    padding:.5rem .9rem; font-weight:600; font-size:.9rem; cursor:pointer; color:var(--ink);
  }
  .nav-toggle .bars{ width:18px; height:2px; background:var(--ink); position:relative; display:inline-block; }
  .nav-toggle .bars::before,.nav-toggle .bars::after{ content:""; position:absolute; left:0; width:18px; height:2px; background:var(--ink); }
  .nav-toggle .bars::before{ top:-6px; }
  .nav-toggle .bars::after{ top:6px; }
}
@media (max-width:560px){
  .step{ grid-template-columns:1fr; }
  .step-num{ grid-row:auto; }
  .step h3{ align-self:auto; }
  .step .step-body{ grid-column:1; }
}
 @media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}
@media (prefers-reduced-motion:no-preference){
  html{ scroll-behavior:smooth; }
  .js .reveal{ opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease; }
  .js .reveal.in{ opacity:1; transform:none; }
}

.byline{
  margin:-.45rem 0 .8rem;
  color:var(--sky);
  font-size:.88rem;
  font-weight:600;
  letter-spacing:.03em;
}
.media-block{ margin-top:1.6rem; }
.media-block-compact,
.stain-note{ margin-top:1.2rem; }
.footer-brand{ font-size:1.15rem; }
.footer-top .footer-description{ margin-top:.8rem; }

.error-page{
  min-height:100vh;
  display:grid;
  grid-template-rows:auto 1fr auto;
}
.error-page .site-footer{ margin-top:0; }
.error-main{
  display:grid;
  place-items:center;
  padding-block:clamp(4rem,10vw,8rem);
}
.error-card{
  width:min(100%,42rem);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(2rem,5vw,4rem);
  box-shadow:var(--shadow);
  text-align:center;
}
.error-code{
  display:block;
  margin-bottom:.6rem;
  color:var(--mint-deep);
  font-family:var(--display);
  font-size:clamp(3.5rem,12vw,7rem);
  font-weight:600;
  line-height:1;
}
.error-card h1{ margin:0 0 .9rem; }
.error-card p{ margin:0 auto 1.5rem; }
.error-card .btn{ justify-content:center; }