/* ==========================================================================
   Atharva Dnyanmote portfolio: shared styles
   Type:   Big Shoulders Display (headings, figures: made for Chicago's civic signage),
           Public Sans (text: made for U.S. government websites),
           Atkinson Hyperlegible Mono (code-like strings only). All self-hosted, SIL OFL (see /fonts).
   Colour: black, white and grey, plus two accents that each have one job.
           --yellow #FFCC00, passive tier: things that never react to a click. Emphasis blocks, labels, metric
             figures and bars, section rules, the quote bar, list markers.
           --acid #F0FF00, interactive tier: live input, hover and focus, and where you are in the navigation.
             Never on anything static, and always with a second signal (underline, lift, ring or block), because
             the two yellows sit close together for colour-blind readers (checked: delta E 7.7 for deuteranopia).
           Imagery (photos, product screens, laptop mockups) is framed in white or grey, never in colour.
           Flat blocks and hard offset shadows only.
   ========================================================================== */

@font-face{font-family:'Big Shoulders Display';src:url('../fonts/big-shoulders-display-latin-wght-normal.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Public Sans';src:url('../fonts/public-sans-latin-wght-normal.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Atkinson Hyperlegible Mono';src:url('../fonts/atkinson-hyperlegible-mono-latin-wght-normal.woff2') format('woff2');font-weight:200 800;font-style:normal;font-display:swap}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  color-scheme:dark;
  --ink:#0D0D0D;
  --bg:#0D0D0D;
  --surface:#161616;
  --surface-2:#212121;
  --line:#2C2C2C;
  --line-strong:#555;
  --rule:#EDEDED;
  --text:#F5F5F2;
  --text-soft:#B8B8B2;
  --text-faint:#92928C;

  --yellow:#FFCC00;
  --acid:#F0FF00;
  --shade:#8E8E88;
  --accent:var(--acid);

  --display:'Big Shoulders Display','Arial Narrow','Franklin Gothic Condensed',Impact,sans-serif;
  --font:'Public Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'Atkinson Hyperlegible Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;

  --bw:2px;
  --sidebar-w:264px;
  --max:1760px;
  --pad:clamp(20px,5vw,80px);
  --py:clamp(72px,9vw,152px);
  --py-sm:clamp(52px,6vw,104px);
  --gap:clamp(32px,4.2vw,64px);
  --gap-s:clamp(18px,2.2vw,32px);
}

html{scroll-behavior:smooth;scroll-padding-top:24px;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:18px;line-height:1.65;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
img,video{display:block;max-width:100%;height:auto}
a{color:inherit}
b,strong{font-weight:700}
::selection{background:var(--acid);color:var(--ink)}
:focus-visible{outline:3px solid var(--acid);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:800;color:var(--text);letter-spacing:0;line-height:1;text-wrap:pretty}
main:focus{outline:none}
[hidden]{display:none!important}

.skip-link{position:absolute;left:16px;top:-64px;z-index:2000;background:var(--acid);color:var(--ink);padding:12px 18px;font-weight:700;font-size:16px;text-decoration:none;transition:top .12s}
.skip-link:focus{top:16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* ---------- icons (drawn, because the fonts carry no arrow glyphs) ---------- */
.i{display:inline-block;width:1em;height:1em;flex-shrink:0;vertical-align:-.14em;background:currentColor;-webkit-mask:var(--ico) center/contain no-repeat;mask:var(--ico) center/contain no-repeat}
.i-ne{--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 18 18 6M8 6h10v10' fill='none' stroke='%23000' stroke-width='2.8' stroke-linecap='square'/%3E%3C/svg%3E")}
.i-arrow{--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 12h17M13 5l7 7-7 7' fill='none' stroke='%23000' stroke-width='2.8' stroke-linecap='square'/%3E%3C/svg%3E")}
.i-x{--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 5l14 14M19 5 5 19' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='square'/%3E%3C/svg%3E")}
.i-check{--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12.5l5.2 5.2L20 6.5' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='square'/%3E%3C/svg%3E")}

/* ---------- layout ---------- */
.main{margin-left:var(--sidebar-w)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.sec{padding:var(--py) 0;border-bottom:var(--bw) solid var(--yellow)}
.sec:last-of-type{border-bottom:0}

/* ---------- sidebar and navigation ---------- */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);display:flex;flex-direction:column;padding:28px 22px;border-right:var(--bw) solid var(--yellow);background:var(--bg);z-index:500;overflow-y:auto}
.wordmark{display:block;font-family:var(--display);font-weight:900;font-size:36px;line-height:.9;text-transform:uppercase;letter-spacing:.01em;color:var(--text);text-decoration:none}
.wordmark span{display:block}
.wordmark:hover span:last-child{text-decoration:underline;text-decoration-color:var(--acid);text-decoration-thickness:3px;text-underline-offset:4px}
.nav{margin-top:44px;display:flex;flex-direction:column;gap:6px}
.nav a{display:block;padding:11px 14px 9px;font-family:var(--display);font-weight:800;font-size:30px;line-height:1;text-transform:uppercase;letter-spacing:.02em;color:var(--text-faint);text-decoration:none;border:var(--bw) solid transparent;transition:color .12s,border-color .12s,background-color .12s}
.nav a:hover{color:var(--text);border-color:var(--acid)}
.nav a.active,.nav a[aria-current="page"]{color:var(--ink);background:var(--acid);border-color:var(--acid)}
.sidebar-bottom{margin-top:auto;padding-top:22px;border-top:1px solid var(--line-strong)}
.side-link{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;font-size:17px;font-weight:600;color:var(--text-soft);text-decoration:none;border-bottom:2px solid transparent;transition:color .12s,border-color .12s}
.side-link:hover{color:var(--text);border-color:var(--acid)}
.social{display:flex;align-items:center;gap:6px;margin:0 0 14px -8px}
.social a{display:grid;place-items:center;width:44px;height:44px;opacity:.78;transition:opacity .12s,background-color .12s,box-shadow .12s}
.social a:hover{opacity:1;background:var(--surface-2);box-shadow:inset 0 -3px 0 var(--acid)}
.social img{height:20px;width:auto}
.copyright{font-family:var(--mono);font-size:12px;color:var(--text-faint)}

.mobile-bar{display:none}
.menu-btn{display:grid;place-content:center;gap:5px;width:46px;height:46px;background:none;border:var(--bw) solid var(--rule);color:var(--text);cursor:pointer;transition:background-color .12s,color .12s,border-color .12s}
.menu-btn:hover{background:var(--acid);color:var(--ink);border-color:var(--acid)}
.menu-btn span:not(.i){display:block;width:20px;height:2px;background:currentColor}
.mobile-menu{position:fixed;inset:0;z-index:1000;display:flex;flex-direction:column;padding:20px;background:var(--bg);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .15s}
.mobile-menu.open{opacity:1;visibility:visible;pointer-events:auto}
.mobile-menu-top{display:flex;align-items:center;justify-content:space-between}
.mobile-menu-nav{margin-top:36px;display:flex;flex-direction:column}
.mobile-menu-nav a{padding:14px 4px 10px;font-family:var(--display);font-weight:800;font-size:54px;line-height:1;text-transform:uppercase;color:var(--text);text-decoration:none;border-bottom:var(--bw) solid var(--line)}
.mobile-menu-nav a[aria-current="page"]{background:var(--acid);color:var(--ink);margin:0 -4px;padding-left:8px;padding-right:8px}
.mobile-menu-nav a:hover{text-decoration:underline;text-decoration-color:var(--acid);text-decoration-thickness:3px;text-underline-offset:6px}
.mobile-menu-bottom{margin-top:auto;padding-top:24px}

@media(max-width:900px){
  .sidebar{display:none}
  .mobile-bar{display:flex;position:fixed;top:0;left:0;right:0;height:64px;align-items:center;justify-content:space-between;padding:0 16px 0 20px;background:var(--bg);border-bottom:var(--bw) solid var(--yellow);z-index:500}
  .mobile-bar .wordmark{font-size:27px;display:flex;gap:.28em;line-height:1}
  .mobile-bar .wordmark span{display:inline}
  .main{margin-left:0;margin-top:64px}
  html{scroll-padding-top:80px}
}

/* ---------- buttons, tags, marks ---------- */
.btn,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:14px 26px;font:700 17px/1 var(--font);text-decoration:none;cursor:pointer;border:var(--bw) solid var(--ink);transition:transform .12s,box-shadow .12s,background-color .12s,color .12s,border-color .12s}
.btn{background:var(--text);color:var(--ink);box-shadow:5px 5px 0 var(--acid)}
.btn:hover{background:var(--acid);transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--text)}
.btn:active{background:var(--acid);transform:translate(3px,3px);box-shadow:2px 2px 0 var(--text)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--rule);box-shadow:0 0 0 var(--shade)}
.btn-ghost:hover{background:var(--acid);color:var(--ink);border-color:var(--acid);transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--text)}
.btn-ghost:active{transform:translate(2px,2px);box-shadow:none}
.btn:disabled{background:var(--text);opacity:.6;cursor:not-allowed;transform:none;box-shadow:5px 5px 0 var(--shade)}

.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px 3px;font:700 14px/1.2 var(--font);letter-spacing:.02em;background:var(--yellow);color:var(--ink);white-space:nowrap}
.tag-line{background:transparent;color:var(--text);border:var(--bw) solid var(--line-strong)}
.tag-no{background:transparent;color:var(--text-soft);border:var(--bw) solid var(--line-strong)}
.tag-no .i{font-size:.9em;vertical-align:-.1em}

.mk{background:var(--yellow);color:var(--ink);padding:0 .09em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.mk-b{display:inline-block;background:var(--yellow);color:var(--ink);line-height:.92;padding:.05em .09em 0}
.hl{background:var(--yellow);color:var(--ink);padding:0 .22em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.num{color:var(--yellow)}
.nw{white-space:nowrap}
.link{color:var(--text);text-decoration:underline;text-decoration-color:var(--acid);text-decoration-thickness:2px;text-underline-offset:4px;transition:color .12s,background-color .12s}
.link:hover{background:var(--acid);color:var(--ink);text-decoration-color:transparent}

/* ---------- home hero ---------- */
.hero{padding-top:calc(var(--py) * .8)}
.hero-name{font-family:var(--display);font-weight:900;font-size:clamp(48px,min(13.2vw,calc((100vw - 48px) / 5)),232px);line-height:.9;letter-spacing:0}
.hero-name>span:not(.mk-b){display:block}
.hero-tagline{margin-top:clamp(22px,2.4vw,36px);font-size:clamp(22px,2.2vw,32px);line-height:1.4;color:var(--text-soft);text-wrap:pretty}
.hero-ctas{margin-top:clamp(28px,3vw,44px);display:flex;flex-wrap:wrap;gap:20px 24px}
.hero-facts{margin-top:calc(var(--gap) * 1.3);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:var(--bw) solid var(--yellow)}
.hero-facts>div{padding:clamp(18px,2vw,28px) clamp(14px,1.6vw,24px) clamp(18px,2vw,28px) 0;border-bottom:1px solid var(--line)}
.hero-facts dt{font-size:15px;font-weight:700;color:var(--text-faint)}
.hero-facts dd{margin-top:4px;font-size:clamp(18px,1.4vw,22px);line-height:1.35;color:var(--text);text-wrap:balance}
.hero-facts dd.num{color:var(--yellow);font-weight:700}
@media(max-width:760px){.hero-facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:420px){.hero-facts{grid-template-columns:1fr}}

/* ---------- section heads (home, about, contact) ---------- */
.sec-head{margin-bottom:var(--gap)}
.h2{font-size:clamp(46px,5.2vw,88px);line-height:.98}
.page-title{font-size:clamp(64px,10vw,168px);line-height:.9;font-weight:900}
.page-hero{padding:calc(var(--py) * .9) 0 var(--py);border-bottom:var(--bw) solid var(--yellow)}
.page-hero .lede{margin-top:clamp(20px,2.2vw,32px)}

/* ---------- work list ---------- */
.work-list{display:flex;flex-direction:column;gap:clamp(36px,4vw,60px)}
.work-row{display:grid;grid-template-columns:minmax(0,1fr);background:var(--surface);border:var(--bw) solid var(--rule);color:inherit;text-decoration:none;transition:transform .14s,box-shadow .14s}
.work-row:hover,.work-row:focus-visible{transform:translate(-6px,-6px);box-shadow:10px 10px 0 var(--acid)}
.work-media{position:relative;overflow:hidden;background:var(--bg);border-bottom:var(--bw) solid var(--rule)}
.work-media::before{content:'';display:block;padding-top:100%}
.work-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:left center}
.work-body{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:clamp(26px,3vw,48px)}
.work-body h3{font-size:clamp(38px,3.6vw,58px);line-height:.96}
.work-role{font-size:clamp(17px,1.3vw,20px);color:var(--text-faint)}
.work-metrics{display:flex;flex-wrap:wrap;gap:12px clamp(28px,3.4vw,52px);margin-top:4px}
.work-metric{display:block}
.work-metric b{display:block;font-family:var(--display);font-weight:900;font-size:clamp(42px,4vw,64px);line-height:.9;color:var(--yellow)}
.work-metric span{display:block;margin-top:6px;font-size:16px;color:var(--text-faint)}
.work-desc{font-size:clamp(17px,1.25vw,20px);line-height:1.5;color:var(--text-soft);text-wrap:pretty}
.work-go{display:inline-flex;align-items:center;gap:10px;margin-top:6px;font-weight:700;font-size:18px;color:var(--text)}
.work-row:hover .work-go,.work-row:focus-visible .work-go{color:var(--acid);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}
@media(min-width:1180px){
  .work-row{grid-template-columns:minmax(0,6fr) minmax(0,5fr)}
  .work-media{border-bottom:0;border-right:var(--bw) solid var(--rule)}
}

/* ---------- timeline and publications ---------- */
.tl{border-top:var(--bw) solid var(--yellow)}
.tl-row{display:grid;grid-template-columns:clamp(104px,12vw,190px) minmax(0,1fr);gap:8px 20px;align-items:baseline;padding:clamp(20px,2.2vw,32px) 4px;border-bottom:1px solid var(--line)}
.tl-year{font-family:var(--display);font-weight:800;font-size:clamp(26px,2.3vw,34px);line-height:1;color:var(--text-soft)}
.tl-co{font-family:var(--display);font-weight:800;font-size:clamp(32px,3.2vw,50px);line-height:1}
.tl-role{display:inline-block;margin-left:16px;font-size:clamp(17px,1.3vw,20px);color:var(--text-soft)}
@media(max-width:560px){.tl-row{grid-template-columns:1fr}.tl-role{display:block;margin:4px 0 0}}

.pubs{border-top:var(--bw) solid var(--yellow)}
.pub{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 28px;align-items:center;padding:clamp(20px,2.2vw,30px) 8px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;transition:background-color .12s,padding .12s}
.pub:hover,.pub:focus-visible{background:var(--surface);padding-left:18px}
.pub h3{font-family:var(--font);font-weight:700;font-size:clamp(19px,1.5vw,23px);line-height:1.4;letter-spacing:0}
.pub:hover h3,.pub:focus-visible h3{text-decoration:underline;text-decoration-color:var(--acid);text-decoration-thickness:2px;text-underline-offset:5px}
.pub-meta{margin-top:6px;font-size:16px;color:var(--text-faint)}
@media(max-width:600px){.pub{grid-template-columns:1fr}}

/* ---------- about ---------- */
.lede{font-size:clamp(20px,1.7vw,26px);line-height:1.5;color:var(--text-soft);text-wrap:pretty}
.bio{display:grid;gap:22px;max-width:62ch}
.bio p{font-size:clamp(19px,1.5vw,23px);line-height:1.6;color:var(--text-soft)}
.bio strong{color:var(--text)}
.about-top{display:grid;gap:var(--gap);padding:calc(var(--py) * .9) 0 var(--py);border-bottom:var(--bw) solid var(--yellow)}
.about-photo{border:var(--bw) solid var(--rule);box-shadow:8px 8px 0 var(--shade);background:var(--bg);max-width:420px}
.about-photo img{width:100%;height:auto}
@media(min-width:900px){.about-top{grid-template-columns:minmax(0,1fr) minmax(0,420px);align-items:start;column-gap:var(--gap)}.about-top .page-title{grid-column:1/-1}}
/* wide enough for the bio to keep a readable measure: the photo runs the full height of the paragraphs */
@media(min-width:1180px){.about-photo{position:relative;align-self:stretch}.about-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:48% 50%}}

.photos{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(12px,1.4vw,20px)}
.photo{display:block;padding:0;background:var(--surface);border:var(--bw) solid var(--rule);cursor:zoom-in;overflow:hidden;transition:transform .12s,box-shadow .12s}
.photo:hover,.photo:focus-visible{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--acid)}
.photo img{width:100%;aspect-ratio:4/5;object-fit:cover}
.photo-hint{margin-top:22px;font-size:16px;color:var(--text-faint)}
@media(max-width:900px){.photos{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:480px){.photos{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}}

.quote-plain{font-family:var(--display);font-weight:800;font-size:clamp(40px,5vw,84px);line-height:1}
.by{margin-top:20px;font-weight:700;font-size:18px;color:var(--text-soft)}

.how{border-top:var(--bw) solid var(--yellow)}
.how-row{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;padding:clamp(24px,2.6vw,38px) 4px;border-bottom:1px solid var(--line)}
.how-row h3{font-size:clamp(32px,3vw,48px)}
.how-row p{font-size:clamp(18px,1.4vw,22px);line-height:1.55;color:var(--text-soft);max-width:70ch}
@media(min-width:900px){.how-row{grid-template-columns:minmax(220px,30%) minmax(0,1fr);gap:var(--gap-s) var(--gap)}}

/* zoom dialog (photos and screenshots) */
dialog.zoom{position:fixed;inset:0;width:100%;height:100%;max-width:none;max-height:none;padding:clamp(16px,3vw,40px);margin:0;border:0;background:transparent;color:var(--text);overflow:auto}
dialog.zoom::backdrop{background:rgba(0,0,0,.93)}
dialog.zoom[open]{display:grid;place-items:center}
dialog.zoom img{max-width:min(100%,1800px);max-height:calc(100vh - 80px);width:auto;height:auto;border:var(--bw) solid var(--rule);background:var(--surface)}
.zoom-close{position:fixed;top:16px;right:16px;display:grid;place-items:center;width:48px;height:48px;background:var(--ink);color:var(--text);border:var(--bw) solid var(--rule);cursor:pointer;font-size:22px;z-index:2}
.zoom-close:hover{background:var(--acid);color:var(--ink)}

/* ---------- contact ---------- */
.form-panel{border:var(--bw) solid var(--rule);background:var(--surface);padding:clamp(24px,3vw,48px);box-shadow:8px 8px 0 var(--shade)}
.field{display:block;margin-top:22px}
.field:first-child,.form-row .field{margin-top:0}
.field>span{display:block;margin-bottom:8px;font-size:17px;font-weight:700;color:var(--text)}
.field small{font-weight:400;color:var(--text-faint)}
.input{display:block;width:100%;padding:15px 16px;background:var(--bg);color:var(--text);font:400 18px/1.4 var(--font);caret-color:var(--acid);border:var(--bw) solid var(--line-strong);border-radius:0;transition:border-color .12s,box-shadow .12s}
.input:hover{border-color:var(--acid)}
.input:focus{outline:none;border-color:var(--acid);box-shadow:4px 4px 0 var(--acid)}
textarea.input{min-height:200px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:22px}
.form-foot{margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:18px 24px}
.form-msg{font-size:17px;color:var(--text-soft)}
.form-msg.err{color:var(--text);font-weight:700}
.form-ok{display:none;gap:18px;align-items:flex-start}
.form-ok.show{display:flex}
.form-ok b{display:block;font-family:var(--display);font-weight:800;font-size:44px;line-height:1}
.form-ok p{margin-top:8px;font-size:18px;color:var(--text-soft)}
@media(max-width:560px){.form-row{grid-template-columns:1fr}}

.elsewhere{border-top:var(--bw) solid var(--yellow)}
.else-link{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:clamp(20px,2.2vw,30px) 8px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;transition:background-color .12s,padding .12s}
.else-link:hover,.else-link:focus-visible{background:var(--surface);padding-left:18px}
.else-link b{font-family:var(--display);font-weight:800;font-size:clamp(34px,3.4vw,54px);line-height:1}
.else-link small{display:block;margin-top:6px;font-size:16px;color:var(--text-faint)}
.else-link .i{font-size:30px;color:var(--text)}
.else-link:hover .i,.else-link:focus-visible .i{color:var(--acid)}

/* ---------- 404 ---------- */
.nf{min-height:100vh;display:flex;flex-direction:column}
.nf-top{padding:24px var(--pad)}
.nf-body{flex:1;display:flex;flex-direction:column;justify-content:center;padding:var(--py) var(--pad)}
.nf-code{font-family:var(--display);font-weight:900;font-size:clamp(150px,28vw,420px);line-height:.8;color:transparent;-webkit-text-stroke:3px var(--yellow)}
.nf h1{margin-top:20px;font-size:clamp(48px,6vw,96px)}
.nf p{margin-top:16px;max-width:42ch}
.nf-foot{padding:28px var(--pad);font-family:var(--mono);font-size:13px;color:var(--text-faint)}

/* ==========================================================================
   Case studies
   ========================================================================== */
.cs-hero{padding:calc(var(--py) * .8) 0 0}
.kicker{font-size:clamp(17px,1.3vw,20px);font-weight:600;color:var(--text-faint);margin-bottom:clamp(18px,2vw,28px)}
.cs-title{font-size:clamp(52px,min(11.4vw,calc((100vw - 48px) / 5)),188px);line-height:.88;font-weight:900}
.cs-title>span:not(.mk-b){display:block}
.cs-lede{margin-top:clamp(24px,2.6vw,40px);font-size:clamp(22px,2.1vw,32px);line-height:1.38;font-weight:500;color:var(--text);text-wrap:pretty}
.cs-lede .hl,.cs-body .hl{font-weight:700}

.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:var(--gap);border-top:var(--bw) solid var(--yellow);border-bottom:1px solid var(--line)}
.facts div{padding:clamp(16px,1.8vw,24px) clamp(14px,1.6vw,24px) clamp(16px,1.8vw,24px) 0}
.facts dt{font-size:15px;font-weight:700;color:var(--text-faint)}
.facts dd{margin-top:4px;font-size:clamp(17px,1.3vw,20px);line-height:1.4;color:var(--text)}
@media(max-width:1000px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.facts{grid-template-columns:1fr}}

.big-nums{display:flex;flex-wrap:wrap;gap:var(--gap-s) clamp(36px,5vw,88px);margin-top:var(--gap)}
.bn b{display:block;font-family:var(--display);font-weight:900;font-size:clamp(64px,7.4vw,124px);line-height:.85;color:var(--yellow);white-space:nowrap}
.bn b .i{font-size:.5em;margin:0 .1em;color:var(--text-faint);vertical-align:.12em}
.bn>span{display:block;margin-top:10px;max-width:22ch;font-size:clamp(16px,1.2vw,19px);line-height:1.4;color:var(--text-soft)}

.cs-section{margin-top:var(--py);padding-top:var(--py-sm);border-top:var(--bw) solid var(--yellow)}
.cs-block{margin-top:var(--py-sm)}
.cs-heading{font-size:clamp(42px,4.8vw,80px);line-height:.98}
.cs-heading-sm{font-size:clamp(34px,3.5vw,58px);line-height:1}
.cs-body{margin-top:clamp(18px,2vw,28px);font-size:clamp(19px,1.5vw,24px);line-height:1.55;color:var(--text-soft);text-wrap:pretty}
.cs-body+.cs-body{margin-top:14px}
.cs-source{margin-top:14px;font-size:16px;color:var(--text-faint)}
.cs-source a{color:var(--text-soft);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:4px}
.cs-source a:hover{color:var(--text);text-decoration-color:var(--acid)}
.cs-sub{margin-top:var(--gap);margin-bottom:clamp(14px,1.6vw,22px);font-family:var(--display);font-weight:800;font-size:clamp(30px,2.8vw,44px);line-height:1}
.cs-sub+.rows,.cs-sub+.plain-list,.cs-sub+.cs-body{margin-top:0}

/* figures */
.cs-img{position:relative;margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface);overflow:hidden}
.cs-img .zoom-btn{display:block;width:100%;padding:0;background:none;border:0;cursor:zoom-in;color:inherit}
.cs-img img{width:100%;height:auto;max-height:min(86vh,900px);object-fit:contain}
.cs-img figcaption,.cap{padding:12px 18px;border-top:1px solid var(--line);font-size:16px;color:var(--text-soft)}
.cs-img-fit{max-width:760px}
.hero-video{margin-top:var(--gap);max-width:760px;border:var(--bw) solid var(--rule);background:var(--surface);box-shadow:8px 8px 0 var(--shade)}
.hero-video video{width:100%;height:auto;background:#0b0f15}

/* scroll frame for very tall screens and documents */
.shot{margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface)}
.shot-bar{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--surface-2);border-bottom:var(--bw) solid var(--rule)}
.shot-name{flex:1;min-width:0;font-size:16px;color:var(--text-soft)}
.shot-scroll{max-height:clamp(480px,74vh,820px);overflow-y:auto;scrollbar-color:var(--line-strong) var(--surface)}
.shot-scroll img{width:100%;height:auto}

/* live frames: working slices of a prototype, in the product's own look */
.live{margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface)}
.live+.live{margin-top:var(--gap-s)}
.live-bar{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--surface-2);border-bottom:var(--bw) solid var(--rule)}
.live-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:16px;color:var(--text-soft)}
.live-open{flex-shrink:0;display:inline-flex;align-items:center;gap:6px;font-size:16px;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}
.live-open:hover{text-decoration:underline;text-decoration-color:var(--acid);text-decoration-thickness:2px;text-underline-offset:4px}
.live-frame{display:block;width:100%;border:0;background:#F8FAFC}
.live-try{padding:14px 18px;border-top:1px solid var(--line);font-size:17px;line-height:1.5;color:var(--text-soft)}
.live-try b{color:var(--text)}
.embed-panel{margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface)}
.embed-panel iframe{display:block;width:100%;border:0;background:#fff}
.embed-note{display:inline-block;margin-top:18px;padding:10px 16px;border:var(--bw) solid var(--line-strong);font-size:16px;color:var(--text-soft)}

/* quote with a person's voice: yellow bar */
.quote{margin-top:var(--gap);padding:clamp(24px,3vw,44px) clamp(24px,3.2vw,52px);border:var(--bw) solid var(--rule);border-left:14px solid var(--yellow);background:var(--surface)}
.quote p{font-size:clamp(22px,2.3vw,34px);line-height:1.35;font-weight:600;color:var(--text);text-wrap:pretty}
.quote cite{display:block;margin-top:18px;font-size:16px;font-weight:700;font-style:normal;color:var(--text-soft)}

/* term / description rows: findings, parts, steps, jobs */
.rows{margin-top:var(--gap);border-top:var(--bw) solid var(--yellow)}
.row{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;padding:clamp(20px,2.2vw,32px) 4px;border-bottom:1px solid var(--line)}
.row h3,.row-term{font-family:var(--display);font-weight:800;font-size:clamp(30px,2.8vw,44px);line-height:1}
.row p,.row-desc{font-size:clamp(18px,1.4vw,22px);line-height:1.5;color:var(--text-soft);text-wrap:pretty}
.row-desc q{color:var(--text);quotes:"\201C" "\201D"}
@media(min-width:900px){.row{grid-template-columns:minmax(240px,32%) minmax(0,1fr);gap:var(--gap-s) var(--gap);align-items:baseline}}

/* decision log table (Sample Manager) */
.decisions{width:100%;margin-top:var(--gap);border-collapse:collapse;border:var(--bw) solid var(--rule);background:var(--surface)}
.decisions th,.decisions td{padding:clamp(14px,1.6vw,22px) clamp(14px,1.8vw,26px);text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.decisions thead th{background:var(--surface-2);border-bottom:var(--bw) solid var(--yellow);font-size:15px;font-weight:700;color:var(--text-faint)}
.decisions tbody th{width:14%;font-family:var(--display);font-weight:800;font-size:clamp(28px,2.6vw,40px);line-height:1;color:var(--text)}
.decisions td{font-size:clamp(17px,1.25vw,20px);line-height:1.5;color:var(--text-soft)}
.decisions tbody tr:last-child>*{border-bottom:0}
.decisions .was{color:var(--text-faint)}
.decisions .was span{text-decoration:line-through;text-decoration-thickness:2px;text-decoration-color:var(--text-soft)}
.decisions .found{color:var(--text)}
.decisions .found q{color:var(--text);font-weight:700;quotes:"\201C" "\201D"}
.decisions .change{color:var(--text);font-weight:600}
@media(max-width:900px){
  .decisions,.decisions tbody,.decisions tr,.decisions th,.decisions td{display:block;width:auto}
  .decisions thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .decisions tbody tr{border-bottom:var(--bw) solid var(--yellow)}
  .decisions tbody tr:last-child{border-bottom:0}
  .decisions tbody th{width:auto;padding-bottom:6px;border:0}
  .decisions td{border:0;padding-top:6px;padding-bottom:6px}
  .decisions td::before{content:attr(data-label);display:block;font-size:14px;font-weight:700;color:var(--text-faint)}
  .decisions tbody tr td:last-child{padding-bottom:20px}
}

/* data model chain (Sample Manager) */
.chain{margin-top:var(--gap);display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;gap:clamp(10px,1.6vw,24px)}
.chain-step{border:var(--bw) solid var(--rule);background:var(--surface);padding:clamp(20px,2.4vw,36px)}
.chain-step h3{font-size:clamp(34px,3.2vw,52px)}
.chain-step p{margin-top:10px;font-size:clamp(17px,1.3vw,20px);color:var(--text-soft);line-height:1.45}
.chain>.i{align-self:center;font-size:clamp(28px,3vw,44px);color:var(--yellow)}
@media(max-width:900px){.chain{grid-template-columns:1fr}.chain>.i{justify-self:center;transform:rotate(90deg)}}

/* process note about AI: yellow tag, plain facts */
.ai-note{margin-top:var(--gap);display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px 22px;align-items:start;padding:clamp(18px,2vw,30px);border:var(--bw) solid var(--text);background:var(--surface)}
.ai-note p{font-size:clamp(17px,1.35vw,21px);line-height:1.55;color:var(--text-soft)}
.ai-note p b{color:var(--text)}
@media(max-width:560px){.ai-note{grid-template-columns:1fr}}

/* before / after bars (Griffith) */
.ba{margin-top:var(--gap);display:grid;gap:clamp(22px,2.6vw,36px)}
.ba-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 24px}
.ba-label{font-size:clamp(18px,1.4vw,22px);font-weight:700}
.ba-val{font-family:var(--display);font-weight:900;font-size:clamp(44px,4.6vw,76px);line-height:.9}
.ba-track{margin-top:10px;height:clamp(34px,3.4vw,52px);border:var(--bw) solid var(--rule);background:var(--surface)}
.ba-fill{height:100%}
.ba-old .ba-val{color:var(--text-faint)}
.ba-old .ba-fill{width:100%;background:var(--text-faint)}
.ba-new .ba-val{color:var(--yellow)}
.ba-new .ba-fill{width:4.2%;min-width:10px;background:var(--yellow)}
.ba-note{font-size:16px;color:var(--text-faint)}

/* archetype (Griffith) */
.archetype{margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface);padding:clamp(28px,3.2vw,52px)}
.archetype-name{font-family:var(--display);font-weight:900;font-size:clamp(44px,4.6vw,76px);line-height:.95}
.archetype-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap-s) clamp(40px,5.5vw,104px);margin-top:30px;padding-top:30px;border-top:1px solid var(--line)}
.archetype-grid h3{font-family:var(--font);font-weight:700;font-size:16px;color:var(--text-faint);margin-bottom:14px}
.archetype-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.archetype-list li{font-size:clamp(17px,1.3vw,20px);line-height:1.5;color:var(--text-soft)}
.archetype-quote{margin-top:30px;padding-top:28px;border-top:1px solid var(--line);font-size:clamp(19px,1.7vw,26px);line-height:1.5;color:var(--text)}
@media(max-width:600px){.archetype-grid{grid-template-columns:1fr;gap:24px}}

/* iteration sequence (OneCause) */
.iter{margin-top:var(--gap);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap-s)}
.iter-card{display:flex;flex-direction:column;border:var(--bw) solid var(--rule);background:var(--surface)}
.iter-card .cs-img{margin:0;border:0;border-bottom:var(--bw) solid var(--rule)}
.iter-body{padding:clamp(22px,2.4vw,38px)}
.iter-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px}
.iter-name{font-family:var(--display);font-weight:800;font-size:clamp(34px,3vw,48px);line-height:1}
.iter-what{margin-top:12px;font-size:clamp(18px,1.4vw,22px);color:var(--text);font-weight:600;line-height:1.35}
.iter-why{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:10px}
.iter-why li{position:relative;padding-left:30px;font-size:clamp(17px,1.25vw,19px);line-height:1.5;color:var(--text-soft)}
.iter-why li::before{content:'';position:absolute;left:0;top:.3em;width:1em;height:1em;background:var(--text-faint);-webkit-mask:var(--ico) center/contain no-repeat;mask:var(--ico) center/contain no-repeat;--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 5l14 14M19 5 5 19' fill='none' stroke='%23000' stroke-width='3.2' stroke-linecap='square'/%3E%3C/svg%3E")}
.iter-win{margin-top:var(--gap);border:var(--bw) solid var(--rule);background:var(--surface);box-shadow:8px 8px 0 var(--shade)}
.iter-win video{width:100%;height:auto;background:#fff;border-bottom:var(--bw) solid var(--rule)}
.iter-win .iter-body{padding:clamp(22px,2.6vw,40px)}
.iter-win .iter-why li::before{background:var(--yellow);--ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12.5l5.2 5.2L20 6.5' fill='none' stroke='%23000' stroke-width='3.2' stroke-linecap='square'/%3E%3C/svg%3E")}
@media(max-width:760px){.iter{grid-template-columns:1fr}}

.plain-list{list-style:none;margin-top:var(--gap-s);display:flex;flex-direction:column;gap:12px}
.plain-list li{position:relative;padding-left:26px;font-size:clamp(18px,1.4vw,22px);line-height:1.5;color:var(--text-soft)}
.plain-list li::before{content:'';position:absolute;left:0;top:.62em;width:11px;height:11px;background:var(--yellow)}
.plain-list b{color:var(--text)}

/* outcomes */
.outcomes{margin-top:var(--gap);border-top:var(--bw) solid var(--yellow)}
.out-row{--n:clamp(40px,4.6vw,76px);display:grid;grid-template-columns:calc(var(--n) * 3.9) minmax(0,1fr);gap:clamp(16px,3vw,48px);align-items:center;padding:clamp(20px,2.2vw,32px) 4px;border-bottom:1px solid var(--line)}
.out-num{font-family:var(--display);font-weight:900;font-size:var(--n);line-height:.9;color:var(--yellow);white-space:nowrap}
.out-num .i{font-size:.62em;margin:0 .06em}
.out-mark{display:grid;place-items:center;width:44px;height:44px;background:var(--yellow);color:var(--ink);font-size:26px}
.out-label{font-size:clamp(18px,1.4vw,22px);line-height:1.5;color:var(--text-soft)}
.out-label b{color:var(--text)}
@media(max-width:700px){.out-row{--n:44px;grid-template-columns:calc(var(--n) * 3.4) minmax(0,1fr)}}

/* next project */
.cs-next{margin:var(--py) 0;padding-bottom:var(--py)}
.next-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:clamp(26px,3vw,48px) clamp(22px,3vw,48px);border:var(--bw) solid var(--rule);background:var(--surface);color:inherit;text-decoration:none;transition:transform .14s,box-shadow .14s}
.next-inner:hover,.next-inner:focus-visible{transform:translate(-6px,-6px);box-shadow:10px 10px 0 var(--acid)}
.next-label{font-size:16px;font-weight:700;color:var(--text-faint)}
.next-title{margin-top:6px;font-family:var(--display);font-weight:800;font-size:clamp(34px,4vw,64px);line-height:1}
.next-arrow{font-size:clamp(34px,4vw,60px);color:var(--text)}
.next-inner:hover .next-arrow,.next-inner:focus-visible .next-arrow{color:var(--acid)}