/* Zenchise design system v2 — "the working paper"
   Idea: the auditor's working paper. Ruled lines, tick marks and ledger rows; deep green authority; one copper
   "proof" mark used sparingly (CTAs are green; copper marks evidence: ticks, key numbers, the i-dot).
   Mobile-first: single column, opening up at 720px / 960px / 1100px. */

@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(/assets/fonts/source-serif-4-latin-opsz-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(/assets/fonts/source-serif-4-latin-ext-opsz-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/source-sans-3-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/source-sans-3-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/source-sans-3-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/source-sans-3-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/ibm-plex-mono-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
/* metric-matched fallbacks reduce layout shift while web fonts load */
@font-face{font-family:"ZX Display Fallback";src:local("Georgia");size-adjust:100%;ascent-override:92%;descent-override:26%}
@font-face{font-family:"ZX Body Fallback";src:local("Arial");size-adjust:94%;ascent-override:104%;descent-override:29%}

:root{
  --paper:#F4F5F2;
  --surface:#FFFFFF;
  --surface-2:#ECEFEB;
  --ink:#0F1714;
  --ink-2:#2B3631;
  --muted:#56625C;
  --line:#D8DDD8;
  --line-strong:#7A8780;
  --rule:rgba(15,74,60,.07);
  --brand:#0F4A3C;
  --brand-ink:#FFFFFF;
  --btn:#0F4A3C;--btn-ink:#FFFFFF;
  --brand-soft:#E2ECE8;
  --field:#0C2B24;
  --field-ink:#F4F5F2;
  --field-muted:#B7C6BF;
  --proof:#A84B17;
  --proof-on-field:#E8915B;
  --proof-soft:#F6E6DC;
  --error:#B42318;
  --focus:#0F1714;

  --display:"Source Serif 4","ZX Display Fallback",Georgia,"Times New Roman",serif;
  --body:"Source Sans 3","ZX Body Fallback",Arial,system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;

  --step--1:clamp(.85rem,.83rem + .1vw,.9rem);
  --step-0:clamp(1rem,.97rem + .15vw,1.075rem);
  --step-1:clamp(1.16rem,1.08rem + .35vw,1.32rem);
  --step-2:clamp(1.42rem,1.25rem + .75vw,1.9rem);
  --step-3:clamp(1.85rem,1.45rem + 1.7vw,2.9rem);
  --step-4:clamp(2.5rem,1.7rem + 3.6vw,4.6rem);
  --step-5:clamp(2.9rem,1.6rem + 5.4vw,6rem);

  --radius:4px;
  --wrap:1180px;
  --gutter-l:max(18px,env(safe-area-inset-left,0px));
  --gutter-r:max(18px,env(safe-area-inset-right,0px));
  --header-h:66px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0E1412;--surface:#151D1A;--surface-2:#1B2521;--ink:#E9EDEA;--ink-2:#C7D0CB;--muted:#9AA59F;--line:#26312C;--line-strong:#62726B;
  --rule:rgba(233,237,234,.05);--brand:#4FB892;--brand-ink:#06140F;--btn:#E9EDEA;--btn-ink:#0F1714;--brand-soft:#16302A;--field:#0A201B;--field-ink:#E9EDEA;--field-muted:#9FB3AA;
  --proof:#E8915B;--proof-on-field:#E8915B;--proof-soft:#2C1D14;--error:#FF8A80;--focus:#E8915B;color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0E1412;--surface:#151D1A;--surface-2:#1B2521;--ink:#E9EDEA;--ink-2:#C7D0CB;--muted:#9AA59F;--line:#26312C;--line-strong:#62726B;
  --rule:rgba(233,237,234,.05);--brand:#4FB892;--brand-ink:#06140F;--btn:#E9EDEA;--btn-ink:#0F1714;--brand-soft:#16302A;--field:#0A201B;--field-ink:#E9EDEA;--field-muted:#9FB3AA;
  --proof:#E8915B;--proof-on-field:#E8915B;--proof-soft:#2C1D14;--error:#FF8A80;--focus:#E8915B;color-scheme:dark}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px);scroll-padding-bottom:96px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:var(--step-0);line-height:1.62;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1.5px no-repeat;transition:background-size .3s var(--ease)}
a:hover{background-size:100% 1.5px}
.prose a,.inline-link{color:var(--brand);background-size:100% 1px}
.prose a:hover,.inline-link:hover{background-size:100% 2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--display);line-height:1.04;letter-spacing:-.03em;margin:0;text-wrap:balance;font-weight:600}
h1{font-size:var(--step-4)}
h2{font-size:var(--step-3)}
h3{font-size:var(--step-1);letter-spacing:-.015em;line-height:1.2;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-left:var(--gutter-l);padding-right:var(--gutter-r)}
.narrow{max-width:800px}
.lede{font-size:var(--step-1);color:var(--ink-2);max-width:54ch;line-height:1.5}
.muted{color:var(--muted)}
.small{font-size:var(--step--1)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--brand-ink);padding:10px 16px;z-index:100}
.skip:focus{left:0}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}

/* label: sentence case with the copper proof square */
.label{display:inline-flex;align-items:center;gap:10px;font:500 .92rem/1.2 var(--body);color:var(--muted);letter-spacing:0}
.label::before{content:"";width:8px;height:8px;background:var(--proof);flex:none}
.label.on-field{color:var(--field-muted)}
.label.on-field::before{background:var(--proof-on-field)}

/* ---------- wordmark ---------- */
.wordmark{display:inline-flex;align-items:center;color:var(--ink);background:none}
.wordmark svg{height:28px;width:auto}
.wordmark .wm-dot{fill:var(--proof)}
.wordmark:hover{background:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;min-height:50px;padding:.8em 1.35em;border-radius:6px;
  font:600 1rem/1.15 var(--body);border:1.5px solid transparent;cursor:pointer;background-image:none;transition:background-color .2s,border-color .2s,color .2s,transform .12s;white-space:nowrap}
.btn:hover{background-image:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background-color:var(--btn);color:var(--btn-ink)}
.btn-primary:hover{background-color:color-mix(in srgb,var(--btn) 86%,var(--paper))}
.btn-secondary{background-color:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-secondary:hover{border-color:var(--ink)}
.btn-on-field{background-color:var(--field-ink);color:var(--field)}
.btn-on-field:hover{background-color:#fff}
.btn-ghost-field{background-color:transparent;color:var(--field-ink);border-color:color-mix(in srgb,var(--field-ink) 40%,transparent)}
.btn-ghost-field:hover{border-color:var(--field-ink)}
.btn .arrow{transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.link-arrow{font-weight:600;display:inline-flex;gap:.45em;align-items:center;color:var(--brand)}
@media (max-width:400px){.btn{white-space:normal;text-align:center;width:100%}.newsletter .inline .btn,.header-actions .btn{width:auto}}

/* ---------- header ---------- */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--paper);z-index:60}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--paper);background:color-mix(in srgb,var(--paper) 90%,transparent);
  backdrop-filter:saturate(1.3) blur(12px);-webkit-backdrop-filter:saturate(1.3) blur(12px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--header-h)}
.nav{display:none}
.nav ul{list-style:none;display:flex;gap:2px;align-items:center}
.nav a{display:block;padding:10px 12px;color:var(--ink-2);font-weight:500;font-size:.97rem;background:none;box-shadow:inset 0 0 0 transparent;transition:box-shadow .2s,color .2s}
.nav a:hover{color:var(--ink);box-shadow:inset 0 -2px 0 var(--line-strong)}
.nav a[aria-current="page"]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--proof)}
.header-actions{display:flex;align-items:center;gap:8px}
.header-actions .btn{min-height:42px;padding:.6em 1.05em;font-size:.94rem}
.header-actions .btn-primary{display:none}
.icon-btn{width:44px;height:44px;display:inline-grid;place-items:center;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.icon-btn svg{width:20px;height:20px}
.theme-toggle .sun{display:none}
:root[data-theme="dark"] .theme-toggle .sun{display:block}
:root[data-theme="dark"] .theme-toggle .moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme-toggle .sun{display:block}:root:not([data-theme="light"]) .theme-toggle .moon{display:none}}

.mobile-menu{position:fixed;inset:0;z-index:70;background:var(--paper);display:flex;flex-direction:column;
  padding:calc(env(safe-area-inset-top,0px) + 10px) var(--gutter-r) calc(env(safe-area-inset-bottom,0px) + 24px) var(--gutter-l);
  visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .2s,transform .2s,visibility 0s .2s}
.mobile-menu.open{visibility:visible;opacity:1;transform:none;transition-delay:0s}
.mobile-menu .top{display:flex;justify-content:space-between;align-items:center;height:var(--header-h)}
.mobile-menu nav{flex:1;display:flex;flex-direction:column;justify-content:center}
.mobile-menu ul{list-style:none;display:grid}
.mobile-menu nav a{display:flex;justify-content:space-between;align-items:baseline;padding:15px 0;font-family:var(--display);font-size:2rem;font-weight:600;letter-spacing:-.03em;border-bottom:1px solid var(--line);background:none}
.mobile-menu nav a[aria-current="page"]::after{content:"";width:10px;height:10px;background:var(--proof)}
.mobile-menu .btn-row .btn{width:100%}
body.menu-open{overflow:hidden}
@media (min-width:1060px){.nav{display:block}.menu-btn{display:none}.header-actions .btn-primary{display:inline-flex}}

/* ---------- sections ---------- */
section{padding-block:clamp(64px,8vw,112px)}
.section-tight{padding-block:clamp(44px,5vw,72px)}
.section-head{display:grid;gap:16px;max-width:760px;margin-bottom:clamp(32px,4vw,56px)}
.section-head p{color:var(--ink-2);font-size:var(--step-1);line-height:1.5}
.band{background:var(--surface);border-block:1px solid var(--line)}
.field{background:var(--field);color:var(--field-ink)}
.field h2,.field h3{color:var(--field-ink)}
.field p{color:var(--field-muted)}

/* ---------- hero ---------- */
.hero{padding-block:clamp(40px,7vw,104px) clamp(56px,7vw,104px)}
.hero-grid{display:grid;gap:48px;align-items:center}
.hero-short{display:none}
@media (max-width:380px){.hero-long{display:none}.hero-short{display:inline}}
.hero h1{font-size:clamp(2.7rem,1.5rem + 4.4vw,5.2rem);letter-spacing:-.04em;line-height:.98;font-weight:600;max-width:14ch}
.proof-word{position:relative;white-space:nowrap;display:inline-block}
.proof-word svg{position:absolute;left:-2%;right:-2%;bottom:-.14em;width:104%;height:.36em;overflow:visible}
.proof-word path{fill:none;stroke:var(--proof);stroke-width:5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:420;stroke-dashoffset:0;animation:draw 1s .5s var(--ease) both}
@keyframes draw{from{stroke-dashoffset:420}to{stroke-dashoffset:0}}
.hero .lede{margin-top:26px}
.hero .btn-row{margin-top:32px}
.hero-note{margin-top:18px;color:var(--muted);font-size:var(--step--1)}
@media (min-width:980px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:64px;align-items:end}.hero-grid>.paper{margin-bottom:calc(var(--hero-note-h,3.95rem))}}

.page-hero{padding-block:clamp(48px,7vw,96px) clamp(36px,5vw,64px)}
.page-hero h1{max-width:18ch}
.page-hero .lede{margin-top:20px}
.page-hero .btn-row{margin-top:28px}

/* ---------- working paper (the signature surface) ---------- */
.paper{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  background-image:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,var(--rule) 31px,var(--rule) 32px);
  padding:24px 24px 22px 34px}
.paper::before{content:"";position:absolute;left:18px;top:0;bottom:0;width:1px;background:color-mix(in srgb,var(--proof) 35%,transparent)}
.paper-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border-bottom:1.5px solid var(--ink);padding-bottom:10px;margin-bottom:16px}
.paper-head .title{font:600 .95rem var(--body)}
.paper-head .ref{font:500 .76rem var(--mono);color:var(--muted);letter-spacing:.02em}
.score-row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:22px;align-items:center}
.score-big{font:600 4.2rem/1 var(--display);letter-spacing:-.05em}
.score-big small{display:block;font:500 .74rem var(--mono);color:var(--muted);letter-spacing:.04em;margin-top:6px}
.bars{display:grid;gap:11px}
.bar{display:grid;gap:5px}
.bar-label{display:flex;justify-content:space-between;font-size:.88rem;color:var(--ink-2)}
.bar-label .num{color:var(--muted);font-size:.8rem}
.bar-track{height:6px;background:var(--surface-2);overflow:hidden}
.bar-fill{height:100%;background:var(--brand);width:var(--w,0%);transition:width 1.2s var(--ease)}
.bar-fill.low{background:repeating-linear-gradient(135deg,var(--ink-2) 0 2px,transparent 2px 5px)}
.paper-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px;padding-top:12px;border-top:1px dotted var(--line-strong)}
.paper-foot p{font-size:.9rem;color:var(--ink-2)}
.tick{display:inline-grid;place-items:center;width:20px;height:20px;color:var(--proof)}
.tick svg{width:20px;height:20px}
@media (max-width:420px){.score-row{grid-template-columns:minmax(0,1fr)}.paper{padding-left:30px}}

/* ---------- editorial stat ---------- */
.stat-lead{display:grid;gap:20px;align-items:end;padding-bottom:28px;border-bottom:1.5px solid var(--ink)}
.stat-lead .big{font:600 clamp(5rem,3rem + 9vw,9rem)/.85 var(--display);letter-spacing:-.06em;color:var(--proof)}
.stat-lead p{font:600 var(--step-2)/1.2 var(--display);letter-spacing:-.02em;max-width:24ch}
.stat-lead cite,.ledger cite{font-style:normal;font-size:.84rem;color:var(--muted)}
.stat-lead cite a,.ledger cite a{color:var(--muted)}
@media (min-width:860px){.stat-lead{grid-template-columns:auto minmax(0,1fr);gap:48px}}
.ledger{list-style:none;display:grid}
.ledger li{display:grid;grid-template-columns:minmax(0,1fr);gap:4px;padding:18px 0;border-bottom:1px solid var(--line)}
.ledger .row{display:flex;align-items:baseline;gap:12px}
.ledger .row span:first-child{font-size:var(--step-0);color:var(--ink-2)}
.ledger .row .leader{flex:1;border-bottom:1px dotted var(--line-strong);transform:translateY(-4px);min-width:24px}
.ledger .row strong{font:600 var(--step-2)/1 var(--mono);letter-spacing:-.03em;color:var(--ink)}

/* ---------- services as working-paper columns ---------- */
.columns{display:grid;gap:40px}
.col{border-top:2px solid var(--ink);padding-top:22px;display:grid;gap:14px;align-content:start}
.col .code{font:500 .8rem var(--mono);color:var(--muted);letter-spacing:.04em}
.col h3{font-size:var(--step-2);font-weight:600}
.col p{color:var(--ink-2)}
.checks{list-style:none;display:grid;gap:9px;margin-top:4px}
.checks li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;color:var(--ink-2);font-size:.97rem}
.checks li::before{content:"";width:16px;height:16px;margin-top:4px;background:var(--proof);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 13.2l5 4.8L20 6.5' fill='none' stroke='black' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 13.2l5 4.8L20 6.5' fill='none' stroke='black' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.field .checks li{color:var(--field-ink)}
.field .checks li::before{background:var(--proof-on-field)}
.col .link-arrow{margin-top:6px}
@media (min-width:880px){.columns{grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}}

/* ---------- steps (real sequences only) ---------- */
.steps{list-style:none;display:grid;gap:0;counter-reset:step;border-top:2px solid var(--ink)}
.steps li{counter-increment:step;display:grid;grid-template-columns:64px minmax(0,1fr);gap:8px 16px;padding:22px 0;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(step,decimal-leading-zero);grid-row:span 2;font:500 1.9rem/1 var(--mono);color:var(--muted);letter-spacing:-.04em}
.steps h3{font-size:var(--step-1)}
.steps p{color:var(--ink-2);font-size:.98rem}
@media (min-width:900px){.steps.across{grid-template-columns:repeat(4,minmax(0,1fr));border-top:0;gap:28px}
  .steps.across li{grid-template-columns:minmax(0,1fr);border-top:2px solid var(--ink);border-bottom:0;padding-top:18px}
  .steps.across li::before{grid-row:auto;margin-bottom:10px}
  .steps.across.three{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* ---------- generic layout ---------- */
.split{display:grid;gap:36px;align-items:start}
@media (min-width:920px){.split{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:72px}.split.even{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.split.wide-left{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}}
.grid-2,.grid-3{display:grid;gap:0 36px}
@media (min-width:760px){.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:880px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.item{border-top:1px solid var(--line-strong);padding:20px 0 28px;display:grid;gap:8px;align-content:start}
.item h3{font-size:var(--step-1)}
.item p{color:var(--ink-2);font-size:.98rem}
.item .label{margin-bottom:4px}
.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,3vw,34px)}
.box-brand{background:var(--brand-soft);border-color:color-mix(in srgb,var(--brand) 25%,var(--line))}
.meta-list{display:grid;border-top:1.5px solid var(--ink)}
.meta-list div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:.96rem}
.meta-list dt{color:var(--muted)}
.meta-list dd{margin:0;font-weight:600;text-align:right}

/* ---------- credentials / founder ---------- */
.creds{display:flex;flex-wrap:wrap;gap:8px}
.creds span{font:500 .86rem var(--body);padding:7px 12px;border:1px solid var(--line-strong);border-radius:4px;color:var(--ink-2)}
.founder{display:grid;gap:32px;align-items:center}
.portrait{width:100%;aspect-ratio:16/8;border-radius:var(--radius);background:var(--field);display:grid;place-items:center;overflow:hidden;color:var(--field-ink);position:relative;
  background-image:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,rgba(255,255,255,.04) 31px,rgba(255,255,255,.04) 32px)}
.portrait img{width:100%;height:100%;object-fit:cover}
.portrait svg{width:34%;height:auto;color:var(--field-ink)}
.portrait .mk-dot{fill:var(--proof-on-field)}
@media (min-width:880px){.founder{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:72px}.portrait{aspect-ratio:4/5}}

/* ---------- CTA band ---------- */
.cta{background:var(--field);color:var(--field-ink);padding-block:clamp(64px,9vw,120px);
  background-image:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,rgba(255,255,255,.035) 31px,rgba(255,255,255,.035) 32px)}
.cta h2{font-size:var(--step-4);max-width:16ch;color:var(--field-ink)}
.cta p{color:var(--field-muted);max-width:54ch;margin-top:18px;font-size:var(--step-1);line-height:1.5}
.cta .btn-row{margin-top:32px}
.cta :focus-visible{outline-color:var(--proof-on-field)}

/* ---------- forms ---------- */
.form{display:grid;gap:16px}
.form-row{display:grid;gap:16px}
@media (min-width:640px){.form-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
.field-set{display:grid;gap:7px}
.field-set label{font-weight:600;font-size:.94rem}
.hint{font-size:.85rem;color:var(--muted);font-weight:400}
input,select,textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1.5px solid var(--line-strong);border-radius:6px;padding:12px 14px;width:100%;min-height:50px;transition:border-color .15s,box-shadow .15s}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 20%,transparent)}
input[aria-invalid="true"],textarea[aria-invalid="true"],select[aria-invalid="true"]{border-color:var(--error)}
.check{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;align-items:start;font-weight:400;font-size:.95rem;cursor:pointer}
.check input{width:20px;height:20px;min-height:0;margin:2px 0 0;accent-color:var(--brand)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-error{color:var(--error);font-size:.93rem;font-weight:500}
.form-success{display:grid;gap:10px;padding:24px;border-radius:var(--radius);background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 30%,var(--line))}
.privacy-line{font-size:.85rem;color:var(--muted)}
.btn[aria-busy="true"]{opacity:.75;pointer-events:none}
.btn[aria-busy="true"]::after{content:"";width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- FAQ ---------- */
.faq{border-top:1.5px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:20px 0;font:600 var(--step-1)/1.3 var(--display);letter-spacing:-.015em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:500 1.5rem/1 var(--mono);color:var(--muted);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding-bottom:22px;color:var(--ink-2);max-width:68ch}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-top:1.5px solid var(--ink)}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:.96rem}
th,td{text-align:left;vertical-align:top;padding:14px 16px 14px 0;border-bottom:1px solid var(--line)}
th{font:500 .78rem var(--mono);letter-spacing:.03em;color:var(--muted)}
td:first-child{font-weight:600}

/* ---------- article ---------- */
.prose{max-width:68ch}
.prose>*+*{margin-top:1.1em}
.prose h2{font-size:var(--step-2);margin-top:1.9em}
.prose h3{margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.3em;display:grid;gap:.5em}
.prose blockquote{margin:1.6em 0;padding:0 0 0 20px;border-left:3px solid var(--proof);font:600 var(--step-1)/1.4 var(--display);letter-spacing:-.01em;color:var(--ink)}
.prose .source-list{font-size:.9rem;color:var(--muted)}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:.92rem;margin-top:18px}
.post-list{display:grid;gap:0 36px}
.post{display:grid;gap:10px;padding:24px 0 30px;border-top:2px solid var(--ink);color:var(--ink);background:none}
.post:hover{background:none}
.post:hover h3{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.post h3{font-size:var(--step-2)}
.post p{color:var(--ink-2)}
@media (min-width:860px){.post-list{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding-block:64px calc(32px + env(safe-area-inset-bottom,0px))}
.footer-grid{display:grid;gap:40px}
.footer-h{font:500 .8rem var(--mono);letter-spacing:.04em;color:var(--muted);margin:0 0 14px}
.footer-grid ul{list-style:none;display:grid;gap:10px}
.footer-grid a{color:var(--ink-2)}
.footer-brand .tagline{font:600 var(--step-1)/1.25 var(--display);letter-spacing:-.02em;margin-top:18px;max-width:18ch}
.footer-brand p.muted{margin-top:10px;max-width:36ch}
.newsletter .inline{display:flex;flex-wrap:wrap;gap:8px}
.newsletter input{min-width:0;flex:1 1 200px}
.newsletter .btn{flex:0 0 auto;width:auto}
.legal{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;color:var(--muted);font-size:.85rem}
.legal a{color:var(--muted)}
@media (min-width:780px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.6fr}}

/* ---------- sticky mobile CTA ---------- */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px var(--gutter-r) calc(10px + env(safe-area-inset-bottom,0px)) var(--gutter-l);
  background:var(--surface);background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);
  transform:translateY(110%);visibility:hidden;transition:transform .3s var(--ease),visibility 0s .3s}
.mobile-cta.show{transform:none;visibility:visible;transition-delay:0s}
.mobile-cta .btn{width:100%}
@media (min-width:1060px){.mobile-cta{display:none}}

/* ---------- scorecard ---------- */
.sc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.sc-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:18px 24px;border-bottom:1.5px solid var(--ink)}
.sc-head .title{font:600 .95rem var(--body)}
.sc-progress{height:3px;background:var(--surface-2)}
.sc-progress span{display:block;height:100%;background:var(--brand);width:0;transition:width .35s var(--ease)}
.sc-body{padding:clamp(22px,4vw,44px)}
.sc-area{font:500 .82rem var(--mono);letter-spacing:.03em;color:var(--muted)}
.sc-q{font:600 var(--step-2)/1.15 var(--display);letter-spacing:-.025em;margin:10px 0 26px;text-wrap:balance}
.sc-options{display:grid;gap:10px}
.sc-option{display:grid;grid-template-columns:30px minmax(0,1fr);gap:14px;align-items:center;text-align:left;width:100%;padding:16px 18px;border-radius:6px;border:1.5px solid var(--line);
  background:var(--paper);color:var(--ink);font:500 1rem/1.35 var(--body);cursor:pointer;transition:border-color .15s,background-color .15s}
.sc-option:hover{border-color:var(--line-strong)}
.sc-option .key{width:30px;height:30px;border-radius:4px;display:grid;place-items:center;font:500 .82rem var(--mono);border:1px solid var(--line-strong);color:var(--muted)}
.sc-option[aria-pressed="true"]{border-color:var(--brand);background:var(--brand-soft)}
.sc-option[aria-pressed="true"] .key{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.sc-nav{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:26px}
.sc-result-top{display:grid;gap:22px;align-items:end;padding-bottom:24px;border-bottom:1.5px solid var(--ink)}
@media (min-width:760px){.sc-result-top{grid-template-columns:auto minmax(0,1fr);gap:40px}}
.band-label{display:inline-flex;align-items:center;gap:8px;font:500 .82rem var(--mono);color:var(--proof)}
.band-label::before{content:"";width:8px;height:8px;background:var(--proof)}
.recs{list-style:none;display:grid;counter-reset:rec;border-top:1.5px solid var(--ink)}
.recs li{counter-increment:rec;display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;padding:18px 0;border-bottom:1px solid var(--line)}
.recs li::before{content:counter(rec,decimal-leading-zero);font:500 1.3rem/1 var(--mono);color:var(--proof)}
.recs h4{font:600 1.1rem/1.25 var(--display);margin-bottom:4px;letter-spacing:-.01em}
.recs p{color:var(--ink-2);font-size:.96rem}

/* ---------- motion ---------- */
.reveal{animation:rise .7s var(--ease) both}
.reveal.d1{animation-delay:.1s}.reveal.d2{animation-delay:.2s}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@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 print{.site-header,.mobile-cta,.site-footer,.mobile-menu{display:none}body{background:#fff;color:#000}}

/* credentials ledger (used while no founder photo is shown) */
.cred-ledger{display:grid;grid-template-columns:minmax(0,1fr);margin:0}
.cred-ledger div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-top:1px solid var(--line)}
.cred-ledger div:last-child{border-bottom:1px solid var(--line)}
.cred-ledger dt{color:var(--muted);font-size:.9rem}
.cred-ledger dd{margin:0;font-weight:600;text-align:right}
@media (min-width:700px){.cred-ledger{grid-template-columns:1fr 1fr;column-gap:40px}.cred-ledger div:nth-last-child(2){border-bottom:1px solid var(--line)}}
.founder.no-photo{grid-template-columns:minmax(0,1fr)!important}
.founder.no-photo .section-head{max-width:880px}
.about-single{max-width:880px}
.founding{display:grid;gap:22px;align-items:end}
@media (min-width:880px){.founding{grid-template-columns:minmax(0,1fr) auto;gap:48px}}
.section-head p.label{font-size:.92rem;line-height:1.2;color:var(--muted)}
.field .section-head p.label,.cta .label{color:var(--field-muted)}

/* ---------- v4 typography: Source Serif 4 / Source Sans 3 / IBM Plex Mono ---------- */
body{font-size:1.0625rem;line-height:1.6}
h1,h2,h3,h4{letter-spacing:-.015em;font-optical-sizing:auto;font-variant-numeric:lining-nums}
h1,h2{line-height:1.06}
.hero h1{letter-spacing:-.022em;line-height:1.02;max-width:15ch}
.score-big{letter-spacing:-.03em}
.stat-lead .big{letter-spacing:-.035em}
.mobile-menu nav a{letter-spacing:-.015em}
.sc-q{letter-spacing:-.015em}
/* proof: a plain rule instead of a hand-drawn squiggle */
.proof-word{white-space:nowrap;text-decoration:underline;text-decoration-color:var(--proof);text-decoration-thickness:.06em;text-underline-offset:.12em}
.proof-word svg{display:none}
/* copper square only on the hero label */
.label::before{display:none}
.hero .label::before{display:block}
.label{font-weight:600;font-size:.8125rem;letter-spacing:.02em}
/* arrows on primary actions only */
.link-arrow .arrow{display:none}
.link-arrow{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.btn-secondary .arrow,.btn-ghost .arrow,.btn-ghost-field .arrow{display:none}
/* sentence-case item labels in the body face */
.col .code,.code{font:600 .8125rem/1.3 var(--body);letter-spacing:.02em;color:var(--muted)}
.proof-word{text-decoration-skip-ink:none}
.hero h1{font-size:clamp(2.6rem,1.5rem + 3.6vw,4.4rem)}
.paper-head .ref,.score-big small{font:600 .75rem/1.2 var(--body);letter-spacing:.02em}

/* v4.1 review fixes */
h1,.hero h1,.stat-lead .big,.score-big{font-variation-settings:"opsz" 60}
h2{font-variation-settings:"opsz" 44}
h3,h4{font-variation-settings:"opsz" 24}
.proof-word{text-decoration-skip-ink:auto;text-decoration-thickness:3px;text-underline-offset:.16em}
.footer-h,th{font:600 .8125rem/1.3 var(--body)!important;letter-spacing:.02em!important;color:var(--muted)}
.label{font-size:.875rem;color:var(--ink-2)}
.label.on-field{color:var(--field-muted)}
@media (min-width:980px){.hero-grid{align-items:start}.hero-grid>.paper{margin-top:4.4rem;margin-bottom:0}}
@media (max-width:720px){.hero .bars .bar:nth-child(n+4){display:none}}
/* calmer sample card: no notebook ruling or margin line */
.paper{background-image:none}
.paper::before{display:none}
.paper{padding-left:24px}
.bar-fill.low{background:var(--muted)}
/* comparison figures */
.ledger .row strong{font:500 clamp(1.375rem,5vw,2rem)/1 var(--mono);white-space:nowrap;letter-spacing:-.02em}
.ledger .leader{border-bottom:none}
@media (max-width:600px){.ledger .row{flex-direction:column;align-items:flex-start;gap:6px}}
/* lists: consistent scale */
.checks li{font-size:1.0625rem;line-height:1.5}
.ledger .leader{display:none}.ledger .row{justify-content:space-between}