/* ==========================================================================
   rycurrie.com
   Design tokens, layout primitives, and components.
   Light paper ground, ink type, one brass accent, per-brand tints.
   ========================================================================== */

:root{
  /* Ground and surface */
  --paper:#F4F6F7;
  --surface:#FFFFFF;
  --band:#ECEFF1;
  --warm:#FAF7F1;

  /* Line */
  --line:#DDE2E6;
  --line-strong:#C6CDD3;
  --line-warm:#E4DDD0;

  /* Type */
  --ink:#14181B;
  --body:#46505A;
  --body-strong:#3A444D;
  --muted:#646E77;
  --faint:#8A939B;

  /* Accent */
  --brass:#8A5A16;
  --brass-hover:#6D460F;
  --brass-rule:#C79A57;
  --brass-light:#D8A45C;

  /* The one dark moment */
  --dark:#14181B;
  --dark-text:#F2F0EC;
  --dark-muted:#8B939B;

  /* Brand accents, one per room */
  --azure:#0A61BB;      --azure-tint:#E9F2FC;
  --rei:#24523A;        --rei-tint:#E8F0EA;
  --sbux:#14603E;       --sbux-tint:#E7F0EA;
  --tmo:#A8437A;        --tmo-tint:#F8EAF1;
  --learn:#8A5A16;      --learn-tint:#F4EBDD;

  /* Type stacks */
  --display:Archivo,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --serif:"Instrument Serif","Iowan Old Style",Georgia,"Times New Roman",serif;

  /* Space scale */
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px;
  --s6:32px; --s7:48px; --s8:64px; --s9:96px;

  --radius:3px;
  --gutter:130px;
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img,svg{max-width:100%;display:block}

/* --------------------------------------------------------------- layout */
.band{padding-left:var(--gutter);padding-right:var(--gutter)}
.inner{max-width:var(--maxw);margin:0 auto}
.measure{max-width:68ch}

.section{padding-top:var(--s9);padding-bottom:var(--s9)}
.section--tight{padding-top:var(--s8);padding-bottom:var(--s8)}
.section--surface{background:var(--surface);border-top:1px solid var(--line)}
.section--band{background:var(--band);border-top:1px solid var(--line)}

.stack{display:flex;flex-direction:column}
.stack-4{gap:var(--s4)} .stack-5{gap:var(--s5)} .stack-6{gap:var(--s6)}

.grid{display:grid;gap:var(--s5)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-5{grid-template-columns:repeat(5,minmax(0,1fr))}

/* ------------------------------------------------------------ typography */
h1,h2,h3,h4{margin:0;text-wrap:balance}
p{margin:0}

.display{
  font-family:var(--display);
  font-weight:600;
  letter-spacing:-.038em;
  line-height:1;
  font-size:clamp(2.6rem,7vw,5.5rem);
  color:var(--ink);
}
.serif{
  font-family:var(--serif);
  font-weight:400;
  letter-spacing:-.01em;
  line-height:1.12;
  color:var(--ink);
}
.serif em{font-style:italic}

.h-section{font-family:var(--serif);font-weight:400;font-size:clamp(2rem,3.6vw,2.9rem);line-height:1.14}
.h-card{font-family:var(--display);font-weight:600;font-size:1.32rem;letter-spacing:-.015em;line-height:1.25}
.h-sub{font-family:var(--display);font-weight:600;font-size:1.06rem;letter-spacing:-.008em}

.mono{
  font-family:var(--mono);
  font-size:.69rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  font-weight:400;
}
.mono--label{color:var(--muted)}
.mono--accent{color:var(--brass)}

.lead{font-size:1.14rem;color:var(--body)}
.body{color:var(--body)}
.body-sm{font-size:.95rem;color:var(--body)}
.eyebrow{display:block;margin-bottom:var(--s5)}

a{color:var(--brass);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--brass-hover);text-decoration:underline}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--ink);color:#fff;padding:12px 20px;font-family:var(--mono);font-size:.7rem;
}
.skip:focus{left:0}

:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:2px}

/* ---------------------------------------------------------------- header */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  height:74px;max-width:var(--maxw);margin:0 auto;
}
.wordmark{
  font-family:var(--display);font-size:.95rem;font-weight:600;
  letter-spacing:.02em;color:var(--ink);text-decoration:none;
}
.wordmark:hover{color:var(--ink);text-decoration:none}
.wordmark span{color:var(--brass)}

.nav{display:flex;align-items:center;gap:34px}
.nav__links{display:flex;gap:30px;list-style:none;margin:0;padding:0}
.nav__links a{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--body);text-decoration:none;
}
.nav__links a:hover{color:var(--brass);text-decoration:none}
.nav__links a[aria-current]{color:var(--brass)}

.btn{
  display:inline-block;font-family:var(--mono);font-size:.69rem;letter-spacing:.18em;
  text-transform:uppercase;padding:14px 26px;border-radius:var(--radius);
  text-decoration:none;transition:background .15s,color .15s,border-color .15s;
  border:1px solid transparent;cursor:pointer;
}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--brass);color:#fff;font-weight:500}
.btn--primary:hover{background:var(--brass-hover);color:#fff}
.btn--ink{background:var(--ink);color:#fff;font-weight:500;padding:10px 20px}
.btn--ink:hover{background:#000;color:#fff}
.btn--ghost{border-color:var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn--onDark{background:var(--brass-light);color:var(--dark)}
.btn--onDark:hover{background:#E8B978;color:var(--dark)}

.nav-toggle{
  display:none;width:46px;height:46px;background:none;border:0;padding:0;
  align-items:center;justify-content:flex-end;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:1px;background:var(--ink);transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}

/* ------------------------------------------------------------------ hero */
.hero{background:var(--surface);padding-top:var(--s8);padding-bottom:var(--s9)}
.topic-rail{
  display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;
  color:var(--muted);margin-bottom:var(--s8);
}
.topic-rail__sep{color:var(--line-strong)}
.topic-rail__first{color:var(--brass)}

.hero__row{display:flex;gap:var(--s9);align-items:flex-start}
.hero__body{flex:1 1 auto;min-width:0}
.hero h1{max-width:13ch;margin-bottom:var(--s6)}
.hero .lead{max-width:60ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:var(--s3);margin-top:var(--s7)}

.portrait{
  flex:0 0 auto;width:268px;height:268px;border-radius:50%;
  border:1px solid var(--brass-rule);background:var(--paper);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.portrait img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.portrait__ph{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-align:center;line-height:2}

/* ------------------------------------------------------------- proof bar */
.proof{background:var(--band);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.proof__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:var(--maxw);margin:0 auto}
.proof__item{padding:34px 0 32px;border-right:1px solid var(--line)}
.proof__item + .proof__item{padding-left:40px}
.proof__item:last-child{border-right:0}
.proof__fig{
  font-family:var(--display);font-size:2.05rem;font-weight:600;letter-spacing:-.02em;
  color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1;
}
.proof__fig span{color:var(--brass)}
.proof__lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:9px}

/* ----------------------------------------------------------------- cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.card__body{padding:var(--s6) 38px 38px}
.card p{margin-top:var(--s3)}

.proofs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.proofs__cell{background:var(--surface);padding:38px 40px 42px}

/* work cards with brand theming */
.work-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.work-card__rule{height:3px}
.work-card__art{height:138px;position:relative;overflow:hidden}
.work-card__art svg{position:absolute;top:0;left:0;opacity:.45}
.work-card__body{background:var(--surface);border-top:1px solid var(--line);padding:26px 30px 34px;flex:1 1 auto}
.work-card__body p{margin-top:var(--s3);font-size:.95rem}

/* full-width case bands */
.case{position:relative;overflow:hidden;padding:var(--s8) 0 70px;border-top:3px solid}
.case__art{position:absolute;top:0;right:-40px;opacity:.22;pointer-events:none}
.case__grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:70px;position:relative;max-width:var(--maxw);margin:0 auto}
.case__name{font-family:var(--display);font-size:2rem;font-weight:600;letter-spacing:-.022em;line-height:1.1;color:var(--ink)}
.case__tick{width:44px;height:2px;margin:20px 0}
.case__role{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--body);line-height:2}
.case__facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 48px}
.fact__lbl{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--body);margin-bottom:9px}
.fact p{font-size:1rem}

.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid;background:var(--surface);margin-bottom:var(--s6)}
.metrics__cell{padding:22px 24px;border-right:1px solid}
.metrics__cell:last-child{border-right:0}
.metrics__fig{font-family:var(--display);font-size:1.62rem;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.metrics__lbl{font-family:var(--mono);font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:6px}

/* ------------------------------------------------------------ dark block */
.dark{background:var(--dark);color:var(--dark-text)}
.dark .serif,.dark .h-section{color:var(--dark-text)}
.dark p{color:#B2BAC1}
.dark .mono--accent{color:var(--brass-light)}

.bookcover{
  flex:0 0 auto;width:270px;height:390px;border:1px solid var(--brass-rule);
  background:var(--dark);display:flex;flex-direction:column;justify-content:space-between;
  padding:30px 26px;border-radius:var(--radius);
}
.bookcover__title{font-family:var(--serif);font-size:2.35rem;line-height:1.06;color:var(--dark-text)}
.bookcover__sub{font-family:var(--mono);font-size:.55rem;letter-spacing:.14em;text-transform:uppercase;color:#A8874F;line-height:2;margin-top:16px}
.bookcover__byline{font-family:var(--mono);font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;color:#A8874F}
.bookcover--lg{width:296px;height:428px;padding:36px 32px}
.bookcover--lg .bookcover__title{font-size:2.85rem}

.statusbar{background:var(--dark);padding:24px 0}
.statusbar__inner{display:flex;justify-content:space-between;gap:var(--s5);flex-wrap:wrap;max-width:var(--maxw);margin:0 auto}
.statusbar .mono{font-size:.66rem}

/* --------------------------------------------------------------- listing */
.findings{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.finding{border-top:1px solid var(--line);padding-top:20px}
.finding--lead{border-top:2px solid var(--brass)}
.finding__n{font-family:var(--display);font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:14px;font-variant-numeric:tabular-nums}
.finding--lead .finding__n{color:var(--brass)}
.finding p{font-size:.94rem;color:var(--body-strong)}

.finding-row{
  border-top:1px solid var(--line);padding:38px 0;
  display:grid;grid-template-columns:84px minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;
}
.finding-row:last-child{border-bottom:1px solid var(--line)}
.finding-row__n{font-family:var(--display);font-size:2.5rem;font-weight:600;color:var(--muted);letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}
.finding-row--lead .finding-row__n{color:var(--brass)}
.finding-row__aside{border-left:1px solid var(--line);padding-left:36px}

.brandstrip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.brandstrip__item{border-top:3px solid;padding-top:18px}
.brandstrip__name{font-family:var(--display);font-size:1.02rem;font-weight:600;color:var(--ink)}
.brandstrip__note{font-family:var(--mono);font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;margin-top:8px}

.creds{display:flex;flex-direction:column;gap:15px}
.creds__deg{font-family:var(--display);font-size:.9rem;font-weight:600;color:var(--ink);line-height:1.35}
.creds__school{font-family:var(--mono);font-size:.58rem;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-top:4px}

.pullquote{
  font-size:1.25rem;line-height:1.58;color:var(--ink);
  border-left:2px solid var(--brass-rule);padding-left:28px;
}

.chapters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:52px}
.chapter-list{list-style:none;margin:var(--s5) 0 0;padding:0;display:flex;flex-direction:column;gap:16px}
.chapter-list li{display:flex;gap:16px;font-size:1rem;color:var(--body-strong);line-height:1.55}
.chapter-list span{font-family:var(--mono);font-size:.62rem;color:var(--brass);padding-top:4px;flex:0 0 auto;font-variant-numeric:tabular-nums}

/* ------------------------------------------------------------- two-up */
.split{display:grid;gap:64px;align-items:start}
.split--sessions{grid-template-columns:400px minmax(0,1fr)}
.split--form{grid-template-columns:minmax(0,1fr) 340px;gap:72px}
.split--about{grid-template-columns:minmax(0,1fr) 340px;gap:var(--s9)}
.split__aside{min-width:0}

/* ----------------------------------------------------------------- forms */
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{
  font-family:var(--sans);font-size:1rem;color:var(--ink);
  background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:14px 16px;width:100%;
}
.field input:focus,.field textarea:focus{border-color:var(--brass);outline:none;box-shadow:0 0 0 3px rgba(138,90,22,.12)}
.field textarea{min-height:150px;resize:vertical}

.signup{
  border:1px solid var(--brass-rule);background:var(--warm);border-radius:var(--radius);
  padding:56px 64px;display:flex;justify-content:space-between;align-items:center;gap:60px;
}
.signup__form{display:flex;gap:12px;flex:0 0 auto}
.signup__form input{width:280px}

/* ------------------------------------------------------------ scheduler */
.sessions{display:flex;flex-direction:column;gap:var(--s4)}
.session{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:28px 30px}
.session--featured{border-color:var(--brass-rule);background:var(--warm)}
.session__head{display:flex;justify-content:space-between;align-items:baseline;gap:var(--s4);margin-bottom:var(--s3)}
.scheduler{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:24px 24px 20px;min-height:420px;min-width:0}
.scheduler__label{margin-bottom:var(--s4)}
.scheduler__label span{color:var(--ink)}
.scheduler__frame{display:block;width:100%;height:720px;border:0;border-top:1px solid var(--line);background:var(--surface);scroll-margin-top:90px}
.scheduler__fallback{margin-top:var(--s4);color:var(--muted)}
.session__head .mono{white-space:nowrap}
.session__price{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-top:var(--s4);padding-top:var(--s4);border-top:1px solid var(--line)}
.session__fig{font-family:var(--display);font-weight:600;font-size:1.5rem;letter-spacing:-.015em;color:var(--ink);font-variant-numeric:tabular-nums}
.session__steps{margin:var(--s3) 0 0;padding-left:1.25em;color:var(--body);font-size:.92rem;line-height:1.6;display:flex;flex-direction:column;gap:6px}
.session__steps li::marker{font-family:var(--mono);font-size:.8em;color:var(--brass)}
.session__note{margin-top:var(--s3);color:var(--muted)}
.session.is-selected{border-color:var(--brass-rule);box-shadow:inset 3px 0 0 var(--brass)}
.scheduler__ph{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--s4);
  height:380px;border:1px dashed var(--line-strong);border-radius:var(--radius);text-align:center;padding:var(--s5);
}

/* ---------------------------------------------------------------- footer */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:52px 0 60px}
.site-footer__inner{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--s6);flex-wrap:wrap;max-width:var(--maxw);margin:0 auto}
.site-footer__links{display:flex;gap:34px;list-style:none;margin:0;padding:0}
.site-footer__links a{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--body);text-decoration:none}
.site-footer__links a:hover{color:var(--brass);text-decoration:none}
.site-footer__meta{font-family:var(--mono);font-size:.6rem;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-top:12px}

/* ----------------------------------------------------------------- utils */
.center{text-align:center}
.mt-3{margin-top:var(--s3)} .mt-4{margin-top:var(--s4)} .mt-5{margin-top:var(--s5)}
.mt-6{margin-top:var(--s6)} .mt-7{margin-top:var(--s7)} .mt-8{margin-top:var(--s8)}
.mb-5{margin-bottom:var(--s5)} .mb-6{margin-bottom:var(--s6)} .mb-7{margin-bottom:var(--s7)}
.row-between{display:flex;justify-content:space-between;align-items:baseline;gap:var(--s5);flex-wrap:wrap}
.row-center{display:flex;justify-content:space-between;align-items:center;gap:var(--s6);flex-wrap:wrap}

/* --------------------------------------------------------- portrait + connect */
.about-portrait{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);aspect-ratio:340/420;max-width:100%}
.about-portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 30%}
.btn--connect span{display:inline-block;margin-left:4px;letter-spacing:0}

/* ------------------------------------------------------- case study page */
.case__more{display:inline-block;margin-top:var(--s5);font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500}
.case__more:hover{text-decoration:underline}

/* Case study theming. Each case study page carries one of these on <main>,
   so the shared case-study chrome takes that company's accent instead of a
   hardcoded one. Add a room here when a new case study is written. */
.cs{--cs-accent:var(--azure);--cs-tint:var(--azure-tint);--cs-line:#C9DCF2}
.cs--azure{--cs-accent:var(--azure);--cs-tint:var(--azure-tint);--cs-line:#C9DCF2}
.cs--rei{--cs-accent:var(--rei);--cs-tint:var(--rei-tint);--cs-line:#C3D4C8}
.cs--sbux{--cs-accent:var(--sbux);--cs-tint:var(--sbux-tint);--cs-line:#C2D4C8}

.cs-hero{position:relative;overflow:hidden;padding-top:var(--s8);padding-bottom:var(--s8)}
.cs-hero__art{position:absolute;top:10px;right:-20px;opacity:.28;pointer-events:none}
.cs-hero__inner{position:relative}
.cs-hero__h1{font-size:clamp(2.4rem,5vw,4.1rem);max-width:17ch;margin:var(--s5) 0 var(--s5)}
.crumb{display:flex;gap:10px;align-items:center;color:var(--muted)}
.crumb a{color:var(--body)}
.crumb a:hover{color:var(--cs-accent)}
.cs-meta{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:var(--s7) 0 0;border-top:1px solid var(--cs-line)}
.cs-meta div{padding:18px 20px 0 0}
.cs-meta dt{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--body)}
.cs-meta dd{margin:6px 0 0;font-family:var(--display);font-weight:600;font-size:.95rem;color:var(--ink);line-height:1.4}

.cs-part{background:var(--surface);border-top:1px solid var(--line);padding-top:var(--s8);padding-bottom:var(--s8)}
.cs-part:nth-of-type(odd){background:var(--paper)}
.cs-part__grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:64px;max-width:var(--maxw);margin:0 auto}
.cs-part__n{font-family:var(--display);font-size:2.5rem;font-weight:600;letter-spacing:-.03em;line-height:1;color:var(--cs-accent);font-variant-numeric:tabular-nums;margin-bottom:12px}

.cs-list{list-style:none;margin:var(--s5) 0 0;padding:0;border-top:1px solid var(--line)}
.cs-list li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;padding:18px 0;border-bottom:1px solid var(--line);color:var(--body)}
.cs-list__k{font-family:var(--mono);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cs-accent);padding-top:5px}

.cs-steps{list-style:none;margin:var(--s6) 0 0;padding:0;counter-reset:step;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 36px}
.cs-steps li{counter-increment:step;border-top:2px solid var(--cs-accent);padding-top:16px}
.cs-steps li::before{content:counter(step,decimal-leading-zero);display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;color:var(--cs-accent);margin-bottom:8px}
.cs-steps .body{margin-top:8px;font-size:.98rem}

.cs-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--cs-line);background:var(--cs-tint)}
.cs-results__cell{padding:22px 24px;border-right:1px solid var(--cs-line)}
.cs-results__cell:last-child{border-right:0}
.cs-results__fig{font-family:var(--display);font-size:1.3rem;font-weight:600;color:var(--ink)}
.cs-results__lbl{font-family:var(--mono);font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;color:var(--body);margin-top:8px}

.ph{font-family:var(--mono);font-size:.78rem;font-weight:500;letter-spacing:.04em;color:var(--brass);background:var(--warm);border:1px dashed var(--brass-rule);border-radius:var(--radius);padding:2px 8px;white-space:nowrap}

blockquote.pullquote{margin:var(--s6) 0 0}
blockquote.pullquote p{color:var(--ink)}
cite{font-style:italic}
.mono cite{font-style:normal}

.cs-next{display:flex;justify-content:space-between;align-items:flex-end;gap:var(--s7);flex-wrap:wrap}
.cs-next__actions{display:flex;gap:var(--s3);flex-wrap:wrap}

/* Next-case pager. One full-width link at the foot of a case study. */
.cs-pager{border-top:2px solid;padding-top:0;padding-bottom:0}
.cs-pager__link{display:flex;align-items:center;justify-content:space-between;
  gap:var(--s5);padding:30px 0;color:inherit}
.cs-pager__link:hover{text-decoration:none}
.cs-pager__text{display:block}
.cs-pager__k{display:block;color:var(--body)}
.cs-pager__name{display:block;font-family:var(--display);font-weight:600;
  font-size:1.5rem;letter-spacing:-.015em;margin-top:8px}
.cs-pager__blurb{display:block;margin-top:6px;max-width:52ch;font-size:.97rem}
.cs-pager__arrow{font-size:1.5rem;flex:none}
.cs-pager__link:hover .cs-pager__name{text-decoration:underline}

@media (max-width:900px){
  .cs-meta{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cs-part__grid{grid-template-columns:1fr;gap:var(--s5)}
  .cs-part__label{display:flex;align-items:baseline;gap:16px}
  .cs-part__n{font-size:1.6rem;margin:0}
  .cs-steps,.cs-results{grid-template-columns:1fr}
  .cs-results__cell{border-right:0;border-bottom:1px solid var(--cs-line)}
  .cs-results__cell:last-child{border-bottom:0}
  .cs-hero__art{opacity:.1}
}
@media (max-width:620px){
  .cs-list li{grid-template-columns:1fr;gap:6px}
  .cs-pager__link{flex-direction:column;align-items:flex-start;gap:var(--s3)}
  .cs-next__actions .btn{width:100%;text-align:center}
  .cs-next__actions{width:100%}
}

/* --------------------------------------------------------------- reveal */
.js .reveal{opacity:0;transform:translateY(8px);transition:opacity .3s ease,transform .3s ease}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ============================================================ responsive */
@media (max-width:1100px){
  :root{--gutter:64px}
  .hero__row{gap:var(--s7)}
  .case__grid{gap:48px}
  .chapters{gap:36px}
}

@media (max-width:900px){
  :root{--gutter:40px;--s9:72px}
  .nav__links{
    display:none;position:absolute;top:74px;left:0;right:0;
    background:var(--surface);border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:var(--s3) var(--gutter) var(--s5);
  }
  .nav__links.is-open{display:flex}
  .nav__links li{border-bottom:1px solid var(--line)}
  .nav__links li:last-child{border-bottom:0}
  .nav__links a{display:block;padding:16px 0}
  .nav-toggle{display:flex}
  .nav{gap:var(--s4)}

  .hero__row{flex-direction:column-reverse;align-items:flex-start;gap:var(--s6)}
  .portrait{width:120px;height:120px}
  .portrait__ph{font-size:.52rem}

  .proof__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .proof__item{border-bottom:1px solid var(--line);padding:24px 0}
  .proof__item:nth-child(2n){border-right:0;padding-left:24px}
  .proof__item:nth-child(n+3){border-bottom:0}
  .proof__item + .proof__item{padding-left:0}
  .proof__item:nth-child(2n){padding-left:24px}

  .grid-3,.grid-5,.proofs,.case__facts,.chapters,.findings,.brandstrip{grid-template-columns:1fr}
  .split,.split--sessions,.split--form,.split--about{grid-template-columns:1fr;gap:var(--s7)}
  .scheduler{padding:var(--s4) var(--s4) var(--s4)}
  .scheduler__frame{height:760px}
  .proofs{gap:1px}
  .case__grid{grid-template-columns:1fr;gap:var(--s6)}
  .case__art{opacity:.16}
  .finding-row{grid-template-columns:48px minmax(0,1fr);gap:var(--s5)}
  .finding-row__aside{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:var(--s4)}
  .finding-row__n{font-size:1.6rem}

  .grid-2{grid-template-columns:1fr}
  .signup{flex-direction:column;align-items:flex-start;padding:var(--s6) var(--s6)}
  .signup__form{width:100%;flex-direction:column}
  .signup__form input{width:100%}
  .metrics{grid-template-columns:1fr}
  .metrics__cell{border-right:0;border-bottom:1px solid}
  .metrics__cell:last-child{border-bottom:0}

  .bookcover,.bookcover--lg{width:190px;height:274px;padding:24px 22px}
  .bookcover--lg .bookcover__title,.bookcover__title{font-size:1.9rem}
}

@media (max-width:620px){
  :root{--gutter:24px;--s8:48px;--s9:56px}
  body{font-size:16px}
  .display{font-size:clamp(2.2rem,10vw,2.9rem)}
  .hero h1{max-width:none}
  .hero__actions .btn{width:100%;text-align:center}
  .card__body,.proofs__cell{padding:26px 24px 30px}
  .work-card__body{padding:22px 22px 26px}
  .site-header__inner{height:62px}
  .nav__links{top:62px}
  .topic-rail{gap:8px 10px;margin-bottom:var(--s6);font-size:.6rem}
  .site-footer__inner{flex-direction:column}
  .site-footer__links{flex-wrap:wrap;gap:var(--s4) var(--s5)}
  .pullquote{font-size:1.1rem;padding-left:18px}
}

/* ------------------------------------------------------------------ print */
@media print{
  .site-header,.nav-toggle,.hero__actions,.btn,.signup,.scheduler,.cs-hero__art,.case__art{display:none!important}
  .cs-part,.cs-hero{padding-top:24pt;padding-bottom:24pt;break-inside:avoid-page}
  body{background:#fff;font-size:11pt}
  .dark{background:#fff!important;color:#000!important}
  .dark p,.dark .serif{color:#000!important}
  a{color:#000;text-decoration:underline}
}