/* =========================================================================
   molaritycalculator.net — Design System v2  ·  "Petrol & Paper"
   Editorial scientific-instrument identity.
   Petrol #0D5D57 · warm ivory paper · single cerise endpoint accent #C72E68
   Fraunces (display serif) · Inter (UI/body) · JetBrains Mono (data/units)
   ========================================================================= */
:root{
  --ink:#14272C; --ink-soft:#3E5258; --muted:#76858A;
  --petrol:#0D5D57; --petrol-deep:#08433F; --petrol-bright:#1A8F84;
  --paper:#F7F5EF; --paper-2:#EFEBE0; --surface:#FFFFFF; --surface-2:#FBFAF5;
  --line:#E4DDCE; --line-strong:#D2C9B6;
  --accent:#C72E68; --accent-deep:#A11F50; --accent-soft:#FBE9F0;
  --mint:#5FE3C1; --readout:#0E2329; --readout-2:#102C2C;
  --amber:#C8881C; --amber-soft:#F7EED9;
  --display:'Fraunces',Georgia,'Times New Roman',serif;
  --body:'Inter',ui-sans-serif,system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
  --maxw:1160px; --readw:680px;
  --radius:9px; --radius-sm:6px; --radius-lg:14px;
  --shadow:0 12px 34px -16px rgba(20,39,44,.30);
  --shadow-sm:0 2px 10px -6px rgba(20,39,44,.20);
  --ring:0 0 0 3px rgba(199,46,104,.26);
  --gap:clamp(16px,2.6vw,26px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--petrol);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--petrol-deep)}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);font-weight:600;line-height:1.1;letter-spacing:-.01em;margin:0 0 .5em;font-optical-sizing:auto}
h1{font-size:clamp(2.3rem,5.4vw,3.7rem);font-weight:600;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.4vw,2.45rem)}
h3{font-size:clamp(1.22rem,2vw,1.5rem)}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
li{margin:.45em 0}
strong{font-weight:700}
hr{border:0;border-top:1px solid var(--line);margin:2.6rem 0}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:5px}
::selection{background:var(--accent-soft);color:var(--accent-deep)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:clamp(52px,7vw,96px) 0}
.center{text-align:center}
.muted{color:var(--muted)}
.grid{display:grid;gap:var(--gap)}
.lead{font-size:1.2rem;line-height:1.6;color:var(--ink-soft);max-width:60ch}
.center .lead{margin-left:auto;margin-right:auto}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--petrol);font-weight:600;margin:0 0 1em;display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block}
.center .eyebrow{justify-content:center}
.section-head{max-width:60ch}
.center.section-head{margin:0 auto}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:200}
.skip:focus{left:0}

/* calibration-tick divider (signature) */
.tickbar{height:13px;width:100%;background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 15px);opacity:.8}
.tickbar.dark{background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.22) 0 1px,transparent 1px 15px)}

/* reading progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:120;transition:width .1s linear}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(247,245,239,.9);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .mark{width:38px;height:38px;flex:none}
.brand .wm{font-family:var(--display);font-weight:600;font-size:1.28rem;letter-spacing:-.02em;line-height:1}
.brand .wm .tld{color:var(--petrol)}
.brand .wm .sub{display:block;font-family:var(--mono);font-size:.56rem;letter-spacing:.24em;color:var(--muted);text-transform:uppercase;font-weight:500;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links>a,.has-menu>a{color:var(--ink-soft);font-weight:500;font-size:.95rem;padding:8px 13px;border-radius:7px;transition:color .15s,background .15s;display:inline-block}
.nav-links>a:hover,.has-menu>a:hover,.nav-links>a[aria-current=page]{color:var(--petrol);background:var(--paper-2)}
.nav-cta{margin-left:8px;border:1px solid var(--ink)!important;color:var(--ink)!important;font-weight:600!important;background:transparent!important}
.nav-cta:hover{background:var(--ink)!important;color:#fff!important}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center;color:var(--ink)}
.nav-toggle svg{width:22px;height:22px}
.has-menu{position:relative}
.menu-panel{position:absolute;top:calc(100% + 10px);left:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:7px;min-width:280px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.16s;display:grid;gap:1px}
.has-menu:hover .menu-panel,.has-menu:focus-within .menu-panel{opacity:1;visibility:visible;transform:none}
.menu-panel a{display:block;padding:10px 12px;border-radius:6px;color:var(--ink);font-size:.93rem;font-weight:500}
.menu-panel a:hover{background:var(--paper-2)}
.menu-panel a span{display:block;font-size:.78rem;color:var(--muted);font-weight:400;margin-top:1px}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;inset:72px 0 auto 0;background:var(--surface);flex-direction:column;align-items:stretch;gap:1px;padding:14px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-140%);transition:transform .28s ease;max-height:calc(100vh - 72px);overflow:auto}
  .nav-links.open{transform:none}
  .nav-links>a,.has-menu>a{padding:13px 14px;font-size:1.04rem}
  .nav-cta{margin:8px 0 0;text-align:center}
  .menu-panel{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-left:2px solid var(--line-strong);border-radius:0;margin:1px 0 6px 12px;padding:0 0 0 8px;min-width:0}
  .has-menu>a::after{content:" ▾";color:var(--petrol)}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--body);font-weight:600;font-size:1rem;padding:14px 26px;border-radius:8px;border:1px solid transparent;cursor:pointer;transition:transform .12s,background .15s,color .15s,border-color .15s;text-align:center;line-height:1.1}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);color:#fff}
.btn-teal{background:var(--petrol);color:#fff}
.btn-teal:hover{background:var(--petrol-deep);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink);background:var(--surface)}
.btn svg{width:18px;height:18px}

/* ---------- hero (tool-first) ---------- */
.hero{position:relative;border-bottom:1px solid var(--line);background:
  linear-gradient(transparent,transparent),
  repeating-linear-gradient(0deg,rgba(13,93,87,.045) 0 1px,transparent 1px 30px),
  repeating-linear-gradient(90deg,rgba(13,93,87,.045) 0 1px,transparent 1px 30px);
  background-color:var(--paper)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,64px);align-items:center;padding:clamp(44px,6vw,80px) 0}
.hero h1{margin-bottom:.35em}
.hero h1 .hl{color:var(--petrol);font-style:italic}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:1.6em}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:1.9em;color:var(--muted);font-size:.88rem;font-family:var(--mono)}
.trust span{display:inline-flex;align-items:center;gap:8px}
.trust svg{width:15px;height:15px;color:var(--petrol)}
@media (max-width:880px){.hero-grid{grid-template-columns:1fr;gap:34px}.hero-copy{order:1}.hero-tool{order:2}}

/* ---------- calculator: instrument panel ---------- */
.calc{background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
.calc-cap{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 18px;background:var(--ink);color:#fff}
.calc-cap .t{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--mint)}
.calc-cap .d{display:flex;gap:5px}.calc-cap .d i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.25);display:block}
.calc-head{display:flex;background:var(--paper-2);border-bottom:1px solid var(--line);padding:5px;gap:3px;flex-wrap:wrap}
.calc-tab{flex:1;min-width:78px;border:none;background:transparent;font-family:var(--body);font-weight:600;font-size:.84rem;color:var(--ink-soft);padding:11px 8px;border-radius:6px;cursor:pointer;transition:.15s}
.calc-tab[aria-selected="true"]{background:var(--surface);color:var(--petrol);box-shadow:var(--shadow-sm)}
.calc-body{padding:clamp(20px,3vw,28px)}
.calc-pane{display:none}.calc-pane.active{display:block;animation:fade .22s ease}
@keyframes fade{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}
.calc-row{display:grid;grid-template-columns:1fr 108px;gap:10px;margin-bottom:13px;align-items:end}
.calc-row.single{grid-template-columns:1fr}
.field label{display:block;font-size:.8rem;font-weight:600;color:var(--ink-soft);margin-bottom:6px}
.field input,.field select{width:100%;font-family:var(--mono);font-size:1rem;padding:12px 13px;border:1px solid var(--line-strong);border-radius:7px;background:var(--surface-2);color:var(--ink);transition:border .15s,box-shadow .15s}
.field input:focus,.field select:focus{border-color:var(--petrol);box-shadow:var(--ring);outline:none;background:#fff}
.field select{cursor:pointer}
.solve-for{font-size:.82rem;font-weight:600;color:var(--ink-soft);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.solve-for select{font-family:var(--mono);padding:7px 10px;border:1px solid var(--line-strong);border-radius:6px;background:var(--paper-2);color:var(--petrol);font-weight:600;cursor:pointer}
/* readout */
.calc-result{margin-top:6px;background:var(--readout);border-radius:var(--radius);padding:18px 20px;position:relative;overflow:hidden}
.calc-result::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(95,227,193,.05) 0 1px,transparent 1px 4px);pointer-events:none}
.calc-result .rlabel{font-size:.7rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#7FA8A0;margin-bottom:6px;font-family:var(--mono);display:flex;align-items:center;gap:8px}
.calc-result .rlabel::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px var(--mint)}
.calc-result .rval{font-family:var(--mono);font-size:clamp(1.5rem,4vw,2.05rem);font-weight:700;color:var(--mint);line-height:1.15;word-break:break-word;text-shadow:0 0 18px rgba(95,227,193,.25)}
.calc-result .rsteps{margin-top:11px;font-size:.84rem;color:#A9C4BE;font-family:var(--mono);line-height:1.75;white-space:pre-line}
.copy-btn{position:absolute;top:14px;right:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#CFE7E1;border-radius:6px;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;padding:6px 9px;cursor:pointer;transition:.15s;z-index:2}
.copy-btn:hover{background:rgba(95,227,193,.16);color:#fff}
.calc-note{font-size:.82rem;color:var(--muted);margin-top:14px}
.compound-chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px}
.chip{font-family:var(--mono);font-size:.77rem;padding:7px 11px;border-radius:6px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink-soft);cursor:pointer;transition:.14s}
.chip:hover{border-color:var(--petrol);background:var(--paper-2);color:var(--petrol)}

/* ---------- cards (flat, hairline) ---------- */
.cards{grid-template-columns:repeat(auto-fit,minmax(248px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:transform .16s,border-color .16s;display:flex;flex-direction:column;gap:5px;position:relative}
.card:hover{transform:translateY(-3px);border-color:var(--petrol)}
.card .ic{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--petrol);margin-bottom:12px}
.card .ic svg{width:30px;height:30px}
.card h3{margin:0 0 .15em;font-size:1.22rem}
.card p{margin:0;color:var(--ink-soft);font-size:.95rem;line-height:1.6}
.card .more{margin-top:auto;padding-top:16px;font-weight:600;color:var(--accent);font-size:.88rem;font-family:var(--mono);letter-spacing:.02em;display:inline-flex;align-items:center;gap:7px}
.card:hover .more{gap:11px}
a.card{color:inherit}
.tint{background:var(--paper-2)}

/* ---------- listings ---------- */
.list-grid{grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .16s,border-color .16s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-3px);border-color:var(--petrol)}
.post-card .thumb{aspect-ratio:16/9;background:var(--paper-2);border-bottom:1px solid var(--line);overflow:hidden}
.post-card .thumb svg,.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .pc-body{padding:18px 21px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-card .tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--petrol);font-weight:600}
.post-card h3{font-size:1.18rem;margin:0;line-height:1.2}
.post-card p{margin:0;font-size:.91rem;color:var(--ink-soft);line-height:1.55}
.post-card .more{margin-top:auto;padding-top:12px;color:var(--accent);font-weight:600;font-size:.84rem;font-family:var(--mono)}
a.post-card{color:inherit}

/* ---------- formula / callouts ---------- */
.formula{font-family:var(--mono);background:var(--ink);color:#EAF4F2;padding:18px 22px;border-radius:var(--radius);font-size:1.04rem;text-align:center;margin:1.7rem 0;overflow-x:auto;letter-spacing:.01em;border-left:3px solid var(--accent)}
.formula .hl{color:var(--mint)}
.formula .ac{color:#FF8FB4}
.callout{border:1px solid var(--line);border-left:3px solid var(--petrol);background:var(--surface);border-radius:0 var(--radius) var(--radius) 0;padding:16px 20px;margin:1.7rem 0}
.callout.tip{border-left-color:var(--amber);background:var(--amber-soft)}
.callout.warn{border-left-color:var(--accent);background:var(--accent-soft)}
.callout strong{font-family:var(--display)}
.callout p:last-child{margin-bottom:0}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;margin:1.7rem 0;border:1px solid var(--line);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;font-size:.93rem;background:var(--surface)}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}
th{background:var(--paper-2);font-family:var(--mono);font-weight:600;color:var(--ink);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--surface-2)}
td.num,th.num{font-family:var(--mono);white-space:nowrap}

/* ---------- article ---------- */
.article-hero{background:var(--paper);border-bottom:1px solid var(--line)}
.article-hero .wrap{padding-top:clamp(26px,5vw,48px);padding-bottom:0}
.crumbs{font-size:.78rem;color:var(--muted);margin-bottom:16px;font-family:var(--mono);letter-spacing:.03em}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--petrol)}
.pill{display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);background:var(--accent-soft);border:1px solid #F3D3DF;padding:5px 11px;border-radius:5px;margin-bottom:14px}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:.85rem;margin:16px 0 24px;font-family:var(--mono)}
.art-cover{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong);margin-bottom:-46px;position:relative;z-index:2;box-shadow:var(--shadow)}
.art-cover svg,.art-cover img{width:100%;display:block}
.article-body{padding-top:66px}
.article-body .readwrap{max-width:var(--readw);margin:0 auto}
.article-body>.wrap>.readwrap>p:first-of-type{font-size:1.16rem;color:var(--ink-soft);line-height:1.65}
.article-body h2{margin-top:2.1em;scroll-margin-top:92px;font-size:clamp(1.5rem,2.6vw,1.95rem)}
.article-body h3{margin-top:1.6em;scroll-margin-top:92px}
.article-body figure{margin:2rem 0}
.article-body figure svg,.article-body figure img{width:100%;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.article-body figcaption{font-size:.82rem;color:var(--muted);text-align:center;margin-top:10px;font-family:var(--mono)}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin:0 0 2.2rem}
.toc strong{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--petrol);display:block;margin-bottom:12px}
.toc ol{margin:0;padding-left:1.3em;columns:2;column-gap:34px}
.toc a{font-size:.92rem;color:var(--ink-soft)}.toc a:hover{color:var(--petrol)}
@media(max-width:600px){.toc ol{columns:1}}
.author-box{display:flex;gap:15px;align-items:center;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin:2.6rem 0}
.author-box .av{width:52px;height:52px;border-radius:9px;flex:none;background:var(--petrol);display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--display);font-weight:700;font-size:1.15rem}
.author-box p{margin:0;font-size:.89rem;color:var(--ink-soft)}
.author-box strong{font-family:var(--display);color:var(--ink)}

/* ---------- affiliate ---------- */
.aff-disclosure{font-size:.82rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-left:3px solid var(--amber);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:12px 16px;margin:1.7rem 0}
.products{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));margin:1.4rem 0}
.product{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:9px;transition:transform .15s,border-color .15s}
.product:hover{transform:translateY(-3px);border-color:var(--petrol)}
.product .pic{aspect-ratio:1;border-radius:var(--radius-sm);background:var(--paper-2);display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--line)}
.product .pic svg{width:66%;height:66%}
.product h4{font-family:var(--display);font-size:1.02rem;margin:0;line-height:1.25}
.product .pdesc{font-size:.83rem;color:var(--ink-soft);margin:0;flex:1;line-height:1.5}
.product .pbtn{margin-top:4px;display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--ink);color:#fff;font-weight:600;font-size:.83rem;padding:10px 12px;border-radius:7px;transition:.15s;font-family:var(--body)}
.product .pbtn:hover{background:var(--petrol);color:#fff}
.product .pbtn svg{width:14px;height:14px;color:var(--amber)}
.product .pbtn:hover svg{color:var(--mint)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--petrol);color:#fff;border-radius:var(--radius-lg);padding:clamp(34px,5vw,58px);text-align:center;position:relative;overflow:hidden;border:1px solid var(--petrol-deep)}
.cta-band .tickbar{position:absolute;top:0;left:0}
.cta-band h2{color:#fff}
.cta-band p{color:#CFE7E3;max-width:52ch;margin:0 auto}
.cta-band .btn-primary{background:#fff;color:var(--petrol-deep)}
.cta-band .btn-primary:hover{background:var(--accent);color:#fff}

/* ---------- FAQ ---------- */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:11px;overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-family:var(--display);font-weight:600;font-size:1.08rem;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--accent);transition:transform .2s;font-family:var(--mono);line-height:1}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .faq-a{padding:16px 22px 20px;color:var(--ink-soft);font-size:.96rem}
.faq .faq-a p:last-child{margin-bottom:0}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#A7BDC0;padding:0 0 28px;margin-top:64px}
.site-footer .ftop{padding:clamp(46px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:38px;padding-top:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:15px;color:#fff}
.footer-brand .mark{width:38px;height:38px}
.footer-brand .wm{font-family:var(--display);font-weight:600;font-size:1.2rem}
.footer-brand .wm .tld{color:var(--mint)}
.site-footer .fdesc{font-size:.91rem;color:#7E969A;max-width:34ch;line-height:1.6}
.site-footer h4{color:#fff;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;font-family:var(--mono);font-weight:600;margin:0 0 15px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer a{color:#A7BDC0;font-size:.92rem}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:.83rem;color:#6E868A}
.footer-bottom a{color:#6E868A}.footer-bottom a:hover{color:#fff}
.contact-mail{color:var(--mint)!important;font-family:var(--mono)}
@media(max-width:780px){.footer-grid{grid-template-columns:1fr 1fr}.footer-brand-col{grid-column:1/-1}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}

/* ---------- scroll-to-top ---------- */
.to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:9px;background:var(--ink);color:#fff;border:none;box-shadow:var(--shadow);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(14px);transition:.25s;z-index:90}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--petrol)}
.to-top svg{width:21px;height:21px}

/* ---------- misc ---------- */
.legal-body{max-width:var(--readw);margin:0 auto}
.legal-body h2{margin-top:1.9em}.legal-body h3{margin-top:1.5em}
.legal-body ul{padding-left:1.25em}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0;margin:1.6rem 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.kpi{padding:24px 20px;text-align:center;border-right:1px solid var(--line)}
.kpi:last-child{border-right:none}
.kpi .n{font-family:var(--display);font-size:2.1rem;font-weight:600;color:var(--petrol);letter-spacing:-.02em;line-height:1}
.kpi .l{font-size:.82rem;color:var(--muted);margin-top:6px}
@media(max-width:520px){.kpi{border-right:none;border-bottom:1px solid var(--line)}.kpi:last-child{border-bottom:none}}
.related{border-top:1px solid var(--line);margin-top:44px;padding-top:32px}
.steps-num{counter-reset:step;list-style:none;padding:0}
.steps-num li{counter-increment:step;position:relative;padding-left:50px;margin:0 0 20px;min-height:34px}
.steps-num li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:-2px;width:36px;height:36px;border-radius:8px;background:var(--paper-2);border:1px solid var(--line-strong);color:var(--petrol);font-family:var(--mono);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.8rem}