/*
AquaVerdia Tools — shared stylesheet.
KonMari-inspired tokens (warm cream, sage, muted gold, serif headings), self-contained:
no external fonts, no external requests. Vanilla CSS only.
*/
:root{
  --cream:#FBF8F1;
  --surface:#FFFFFF;
  --ink:#3F3A32;
  --muted:#8C8474;
  --sage:#8CA886;
  --sage-deep:#5F7A5B;
  --sage-soft:#EDF2E9;
  --blush-soft:#F8EEE2;
  --gold:#BE9A5E;
  --line:#E9E0CF;
  --radius:18px;
  --shadow:0 18px 40px -22px rgba(63,58,50,.25);
  --maxw:1140px;
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);line-height:1.85;font-size:1.02rem;
  background:var(--cream);-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--sage-deep);text-decoration:underline;text-decoration-color:#CBD8C6;text-underline-offset:3px}
a:hover{color:var(--sage-deep);text-decoration-color:var(--sage-deep)}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.25;color:var(--ink);margin:1.4em 0 .5em;font-weight:600}
h1{font-size:clamp(2.2rem,5vw,3.4rem);letter-spacing:.005em}
h2{font-size:clamp(1.6rem,3vw,2.1rem)}
h3{font-size:1.35rem}
p{margin:0 0 1.5em}
ul,ol{margin:0 0 1.5em;padding-left:1.4em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
main{display:block}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(251,248,241,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 20px;max-width:var(--maxw);margin:0 auto}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-weight:700;
  font-size:1.5rem;letter-spacing:.01em;color:var(--ink);text-decoration:none}
.brand:hover{color:var(--ink);text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:10px;overflow:hidden;flex:none;box-shadow:0 4px 12px rgba(63,58,50,.18)}
.brand-mark svg{display:block;width:36px;height:36px}
.wm-a{color:var(--ink)}.wm-b{color:var(--sage-deep)}
.brand small{display:block;font-family:var(--font);font-size:.6rem;font-weight:500;color:var(--muted);
  letter-spacing:.16em;text-transform:uppercase;margin-top:2px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;color:var(--ink);
  padding:8px 12px;font-size:1.1rem;cursor:pointer}
.primary-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px;align-items:center}
.primary-nav a{color:var(--muted);font-size:.84rem;font-weight:600;letter-spacing:.03em;padding:10px 12px;
  border-radius:9px;display:block;white-space:nowrap;text-decoration:none}
.primary-nav a:hover{background:var(--sage-soft);color:var(--ink);text-decoration:none}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{font-size:.82rem;color:var(--muted);max-width:760px;margin:0 auto;padding:16px 20px 0}
.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:#C9BFA9}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--ink)}

/* ---------- Article shell ---------- */
.article{max-width:760px;margin:0 auto 30px;padding:20px clamp(20px,4vw,46px) 34px}
.article header{text-align:center;padding:2.2rem 0 0}
.kicker{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.24em;text-transform:uppercase;
  color:var(--sage-deep);background:var(--sage-soft);border-radius:999px;padding:7px 18px;margin-bottom:14px}
.article h1{margin:0 auto 1.1rem;max-width:820px}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;color:var(--muted);
  font-size:.88rem;letter-spacing:.03em;margin:10px 0 26px}
.entry-content{font-size:1.06rem}
.entry-content>p:first-of-type::first-letter{font-family:var(--serif);font-size:3.3em;float:left;
  line-height:.85;padding:6px 10px 0 0;color:var(--sage-deep);font-weight:600}
.entry-content h2{margin:3rem 0 1.1rem}
.entry-content h2::after{content:"";display:block;width:52px;height:3px;border-radius:2px;
  background:var(--sage);margin-top:.65rem;opacity:.7}
table{border-collapse:separate;border-spacing:0;width:100%;margin:0 0 1.6em;font-size:.93rem;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface)}
th,td{padding:10px 14px;text-align:left;vertical-align:top}
th{background:var(--sage-soft);color:var(--sage-deep);font-weight:600;font-size:.78rem;
  letter-spacing:.06em;text-transform:uppercase;border:none}
td{border-top:1px solid var(--line)}
tr td:first-child{font-weight:600}

/* ---------- Callout boxes ---------- */
.av-box{border-radius:16px;padding:1.7rem 2rem;margin:0 0 1.8em;border:1px solid var(--line);background:var(--surface)}
.av-box>:last-child{margin-bottom:0}
.av-box .av-box-title{display:block;font-weight:700;font-size:.95rem;letter-spacing:.02em;margin:0 0 8px;color:var(--ink)}
.av-takeaways{background:var(--blush-soft);border-color:#EFDCC4}
.av-takeaways .av-box-title{color:var(--gold);font-size:.75rem;letter-spacing:.22em;text-transform:uppercase}
.av-tip{background:var(--sage-soft);border-color:#D5E0D0}
.av-tip .av-box-title{color:var(--sage-deep);font-size:.75rem;letter-spacing:.22em;text-transform:uppercase}
.av-warn{background:#FBF3E4;border-color:#E5CFA3}
.av-warn .av-box-title{color:#A5762E;font-size:.75rem;letter-spacing:.22em;text-transform:uppercase}

/* ---------- FAQ accordions ---------- */
details.av-faq{background:var(--surface);border:1px solid var(--line);border-radius:14px;
  margin:0 0 12px;box-shadow:0 4px 14px rgba(63,58,50,.06);overflow:hidden}
details.av-faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;
  justify-content:space-between;gap:14px;padding:16px 20px;font-weight:600;color:var(--ink);font-size:1rem}
details.av-faq summary::-webkit-details-marker{display:none}
details.av-faq summary::marker{content:""}
.av-faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--sage-soft);
  position:relative;transition:transform .25s ease,background .25s ease}
.av-faq-icon::before,.av-faq-icon::after{content:"";position:absolute;background:var(--sage-deep);
  border-radius:2px;top:50%;left:50%}
.av-faq-icon::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.av-faq-icon::after{width:2px;height:12px;transform:translate(-50%,-50%)}
details.av-faq[open] .av-faq-icon{transform:rotate(135deg);background:#DDE7D8}
details.av-faq summary:hover .av-faq-icon{background:#DDE7D8}
.av-faq-a{padding:0 20px 18px;color:#5A544A;font-size:.97rem;border-top:1px solid var(--line)}
.av-faq-a p{margin:12px 0 0}
details.av-faq summary:focus-visible{outline:2px solid var(--sage-deep);outline-offset:2px}

/* ---------- Calculator ---------- */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(1.4rem,4vw,2.4rem);margin:2.2rem 0;box-shadow:var(--shadow)}
.calc h2{margin-top:0}
.calc h2::after{display:none}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:6px}
.calc-field{display:flex;flex-direction:column;gap:8px}
.calc-field.full{grid-column:1/-1}
.calc-field label{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.calc-field input[type="number"],.calc-field select{padding:13px 16px;border-radius:12px;
  border:1px solid var(--line);background:var(--cream);color:var(--ink);font-size:1.05rem;font-family:var(--font)}
.calc-field input[type="number"]:focus,.calc-field select:focus{outline:2px solid var(--sage-deep);outline-offset:1px;border-color:var(--sage-deep)}
.seg{display:inline-flex;background:var(--cream);border:1px solid var(--line);border-radius:999px;padding:4px;gap:4px}
.seg button{border:none;background:transparent;color:var(--muted);font-family:var(--font);font-weight:600;
  font-size:.9rem;padding:8px 20px;border-radius:999px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--sage-deep);color:#fff}
.calc-results{margin-top:22px;border-top:1px dashed var(--line);padding-top:22px}
.res-hero{display:flex;align-items:baseline;justify-content:center;gap:10px;flex-wrap:wrap;
  text-align:center;margin-bottom:6px}
.res-num{font-family:var(--serif);font-size:clamp(2.4rem,6vw,3.4rem);font-weight:700;color:var(--sage-deep);line-height:1}
.res-unit{font-size:1.05rem;color:var(--muted);font-weight:600}
.res-sub{text-align:center;color:var(--muted);font-size:.92rem;margin-bottom:18px}
.res-rows{display:grid;gap:10px}
.res-row{display:flex;justify-content:space-between;align-items:center;gap:14px;background:var(--cream);
  border:1px solid var(--line);border-radius:12px;padding:12px 18px}
.res-row .k{font-weight:600;font-size:.95rem}
.res-row .v{font-family:var(--serif);font-size:1.35rem;font-weight:700;color:var(--ink);white-space:nowrap}
.res-row .v small{font-family:var(--font);font-size:.82rem;color:var(--muted);font-weight:500}
.dc-swatches{display:flex;gap:10px;justify-content:center;margin:14px 0 4px;flex-wrap:wrap}
.dc-sw{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:.8rem;color:var(--muted);font-weight:600}
.dc-dot{width:44px;height:44px;border-radius:50%;border:3px solid var(--line)}
.dc-dot.blue{background:#7FB3D5}.dc-dot.green{background:#A9DF6E;border-color:var(--sage-deep)}
.dc-dot.yellow{background:#F5D547}

/* ---------- Related ---------- */
.related{max-width:760px;margin:0 auto;padding:10px 20px 30px}
.related h2{margin-top:0}
.related ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.related li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.8rem 1.2rem}
.related a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
.related a:hover{color:var(--sage-deep)}
.disclaimer{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);
  margin-top:2.4rem;padding-top:1.4rem;font-style:italic}

/* ---------- Ad slots ---------- */
.ad-slot{min-height:90px;margin:26px auto;max-width:728px;display:flex;align-items:center;justify-content:center;
  border:1px dashed #D8CDB4;border-radius:12px;background:rgba(255,255,255,.5);
  color:var(--muted);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}
.ad-slot::after{content:"Advertisement"}

/* ---------- Footer ---------- */
.site-footer{background:#38322A;color:#D8CFBB;margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:44px 20px 26px;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px}
.site-footer h3{color:#F5EFE2;font-size:1rem;margin:0 0 12px;font-family:var(--serif)}
.site-footer p{font-size:.92rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:0 0 8px}
.site-footer a{color:#B9AE97;font-size:.92rem;text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 20px;text-align:center;
  font-size:.82rem;color:#8F8571}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .nav-toggle{display:block}
  .primary-nav{display:none;width:100%;order:3}
  .primary-nav.open{display:block}
  .primary-nav ul{flex-direction:column;gap:0;padding:8px 0}
  .primary-nav a{padding:12px 6px;border-top:1px solid var(--line);font-size:.95rem}
  .header-inner{flex-wrap:wrap}
  .article{padding:16px 18px 26px}
  .calc-grid{grid-template-columns:1fr}
}
@media (max-width:420px){
  .av-box{padding:1.3rem 1.4rem}
  .res-row{flex-direction:column;align-items:flex-start;gap:2px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* ---------- Affiliate product cards (same uniform pattern as article pages) ---------- */
.av-product-card{display:flex;gap:20px;align-items:center;background:var(--surface);
  border:1px solid var(--line);border-radius:20px;padding:1.7rem;margin:2.2rem 0;
  box-shadow:var(--shadow)}
.av-pc-img{flex:0 0 110px}
.av-pc-img img{width:110px;height:110px;object-fit:contain;border-radius:14px;background:var(--blush-soft);display:block}
.av-pc-body{flex:1;min-width:0}
.av-pc-name{font-family:var(--serif);font-weight:600;font-size:1.3rem;color:var(--ink);margin:0 0 6px}
.av-pc-rating{display:flex;align-items:center;gap:8px;margin:0 0 12px}
.av-pc-stars{position:relative;display:inline-block;font-size:1.05rem;line-height:1;color:#E3DCCB;letter-spacing:2px}
.av-pc-stars::before{content:"\2605\2605\2605\2605\2605";position:absolute;left:0;top:0;color:#E8A93D;width:calc(var(--rating,5)/5*100%);overflow:hidden;white-space:nowrap;letter-spacing:2px}
.av-pc-score{font-weight:700;color:var(--ink)}
.av-pc-source{color:var(--muted);font-size:.85rem}
.av-pc-cta{display:inline-block;background:var(--gold);color:#fff!important;padding:11px 26px;border-radius:999px;
  font-weight:600;font-size:.9rem;letter-spacing:.04em;text-decoration:none;transition:transform .15s,box-shadow .15s}
.av-pc-cta:hover{background:#A9854E;color:#fff!important;transform:translateY(-1px);box-shadow:0 10px 20px -10px rgba(190,154,94,.7)}
.gear-note{color:var(--muted);font-size:.95rem}
@media(max-width:520px){.av-product-card{gap:14px;padding:1.3rem}.av-pc-img{flex-basis:84px}.av-pc-img img{width:84px;height:84px}}