/* ============================================================
  Shared case-study styles. Each page sets its own accent via
  :root{--accent; --accent-soft; --hero-bg; --hero-fg; --hero-dim}
  ============================================================ */
:root{
 --ink:#0A0A0A;
 --panel:#101010;
 --cream:#F2EFE6;
 --cream-dim:rgba(242,239,230,.66);
 --cream-line:rgba(242,239,230,.14);
 --char:#141410;
 --muted:#6C6C61;
 --card-line:rgba(20,20,16,.12);
 /* accent defaults (overridden per page) */
 --accent:#CBF23E;
 --accent-soft:rgba(203,242,62,.16);
 --hero-bg:#1C2416;
 --hero-fg:#F4F3EC;
 --hero-dim:rgba(244,243,236,.62);
 --disp:"Space Grotesk",system-ui,sans-serif;
 --body:"DM Sans",system-ui,sans-serif;
 --mono:"DM Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;background:var(--ink);color:var(--cream);
 font-family:var(--body);line-height:1.5;font-size:clamp(15px,.6vw + 14px,17px);
 -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--char)}
.wrap{max-width:1120px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:.74rem}
hr.rule{height:1px;background:var(--cream-line);border:0;margin:0}

/* ---------- NAV ---------- */
nav{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--cream-line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px clamp(20px,4vw,48px)}
.back{display:inline-flex;align-items:center;gap:9px;font-weight:600;letter-spacing:-.01em;transition:color .2s}
.back .ar{transition:transform .2s}
.back:hover{color:var(--accent)}
.back:hover .ar{transform:translateX(-3px)}
.nav-tag{color:var(--cream-dim)}

/* ---------- HERO (big rounded color block, echoes the card banners) ---------- */
.hero{margin:clamp(16px,2.4vw,26px);border-radius:30px;background:var(--hero-bg);color:var(--hero-fg);
 padding:clamp(40px,7vw,86px);position:relative;overflow:hidden}
.hero .kick{font-family:var(--mono);text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;color:var(--accent)}
.hero.light .kick{color:var(--char)}
.hero h1{font-weight:700;letter-spacing:-.035em;line-height:.98;margin:18px 0 0;
 font-size:clamp(2.4rem,6.4vw,4.9rem);max-width:15ch}
.hero .sub{margin:clamp(22px,3vw,30px) 0 0;max-width:54ch;font-size:clamp(1.02rem,1.3vw,1.22rem);
 color:var(--hero-dim);line-height:1.45}
.hero .motif{position:absolute;top:clamp(24px,4vw,54px);right:clamp(20px,4vw,54px);opacity:.9;pointer-events:none}
@media(max-width:640px){.hero .motif{display:none}}

/* ---------- BRIEF STRIP ---------- */
.brief{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--cream-line);
 border-top:1px solid var(--cream-line);border-bottom:1px solid var(--cream-line);margin-top:clamp(20px,3vw,30px)}
.brief .b{background:var(--ink);padding:20px clamp(20px,4vw,48px)}
.brief .bl{color:var(--cream-dim)}
.brief .bv{margin-top:7px;font-weight:600;letter-spacing:-.01em;line-height:1.25}
@media(max-width:760px){.brief{grid-template-columns:1fr 1fr}}
@media(max-width:440px){.brief{grid-template-columns:1fr}}

/* ---------- SECTIONS ---------- */
section.sec{padding:clamp(52px,7vw,92px) 0}
.eyebrow{color:var(--accent);margin:0 0 18px}
h2{font-weight:700;letter-spacing:-.03em;line-height:1.02;margin:0;font-size:clamp(1.7rem,3.4vw,2.7rem);max-width:20ch}
.lead{margin:22px 0 0;max-width:62ch;font-size:clamp(1.05rem,1.35vw,1.24rem);color:rgba(242,239,230,.9);line-height:1.5}
.body-col{max-width:64ch}
.body-col p{color:rgba(242,239,230,.86);margin:16px 0 0;line-height:1.55}
.body-col p strong{color:var(--cream);font-weight:600}

/* two-column layout for split narrative */
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,3vw,44px);align-items:start}
@media(max-width:820px){.two{grid-template-columns:1fr}}

/* ---------- STAT CARDS ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--cream-line);
 border:1px solid var(--cream-line);border-radius:18px;overflow:hidden;margin-top:clamp(24px,3vw,34px)}
.stats.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:760px){.stats,.stats.four{grid-template-columns:1fr 1fr}}
@media(max-width:440px){.stats,.stats.four{grid-template-columns:1fr}}
.stat{background:var(--ink);padding:26px 22px 24px}
.stat .n{font-size:clamp(1.9rem,3vw,2.5rem);font-weight:700;letter-spacing:-.03em;line-height:.9;color:var(--accent)}
.stat .d{color:var(--cream-dim);margin-top:12px;font-size:.88rem;line-height:1.5}
.stat .src{color:rgba(242,239,230,.52);font-family:var(--mono);font-size:.6rem;letter-spacing:.08em;margin-top:10px;text-transform:uppercase}

/* ---------- CHART SHELL ---------- */
.chart{background:var(--panel);border:1px solid var(--cream-line);border-radius:20px;padding:clamp(24px,3vw,34px);margin-top:clamp(24px,3vw,32px)}
.chart .ctitle{font-weight:600;letter-spacing:-.01em;font-size:1.05rem;margin:0 0 4px}
.chart .cnote{color:var(--cream-dim);font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;line-height:1.45}
.chart .cfoot{color:rgba(242,239,230,.62);font-size:.82rem;margin-top:18px;line-height:1.5}

/* horizontal bars */
.hbars{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.bar-row{display:flex;flex-direction:column;gap:7px}
.bar-row .bl{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
 font-family:var(--mono);font-size:.66rem;letter-spacing:.05em;color:var(--cream-dim)}
.bar-row .bl b{color:var(--cream);font-weight:700;font-size:.82rem;font-family:var(--disp);letter-spacing:0}
.track{height:12px;border-radius:20px;background:rgba(242,239,230,.09);overflow:hidden}
.track.tall{height:26px;display:flex;align-items:center}
.fill{height:100%;border-radius:20px;width:0;transition:width 1.05s cubic-bezier(.2,.7,.2,1)}
.reveal.in .fill{width:var(--w)}
.f-accent{background:var(--accent)}
.f-dim{background:rgba(242,239,230,.28)}
.f-soft{background:var(--accent);opacity:.5}
.bar-lead b{font-size:1.05rem}

/* stacked overage bars (copilot sensitivity) */
.stack{display:flex;height:26px;border-radius:20px;overflow:hidden;background:rgba(242,239,230,.09)}
.stack span{display:block;height:100%;width:0;transition:width 1.05s cubic-bezier(.2,.7,.2,1)}
.reveal.in .stack span{width:var(--w)}
.s-base{background:rgba(242,239,230,.3)}
.s-over{background:var(--accent)}
.legend{display:flex;gap:20px;margin-top:16px;flex-wrap:wrap}
.legend span{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.62rem;letter-spacing:.06em;color:var(--cream-dim);text-transform:uppercase}
.dot{width:11px;height:11px;border-radius:3px;display:inline-block}

/* funnel (decreasing) */
.funnel{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.fstep{display:flex;align-items:center;gap:18px}
.fstep .fn{font-size:clamp(1.3rem,2.4vw,1.8rem);font-weight:700;letter-spacing:-.02em;min-width:88px;color:var(--cream)}
.fstep .fbar{flex:1}
.fstep .fbar .track{height:34px}
.fstep .fd{color:var(--cream-dim);font-size:.85rem;max-width:22ch;line-height:1.4}
@media(max-width:560px){.fstep{flex-wrap:wrap;gap:8px}.fstep .fd{flex-basis:100%}}

/* spectrum diagram (apple) */
.spectrum{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px;margin-top:24px;border-radius:14px;overflow:hidden}
.sp{padding:20px 18px;min-height:112px;display:flex;flex-direction:column;justify-content:space-between;background:rgba(242,239,230,.05);border:1px solid var(--cream-line)}
.sp.on{background:var(--accent-soft);border-color:var(--accent)}
.sp .spt{font-weight:700;letter-spacing:-.01em}
.sp .spd{color:var(--cream-dim);font-size:.86rem;line-height:1.45;margin-top:8px}
.sp .spf{font-family:var(--mono);font-size:.6rem;letter-spacing:.08em;text-transform:uppercase;margin-top:12px;color:rgba(242,239,230,.6)}
.sp.on .spf{color:var(--accent)}
@media(max-width:640px){.spectrum{grid-template-columns:1fr}}

/* split before/after (copilot mechanism) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--cream-line);border:1px solid var(--cream-line);border-radius:18px;overflow:hidden;margin-top:24px}
.split .col{background:var(--ink);padding:26px 24px}
.split .ct{font-family:var(--mono);text-transform:uppercase;letter-spacing:.12em;font-size:.68rem;color:var(--cream-dim)}
.split .col.hot .ct{color:var(--accent)}
.split ul{list-style:none;padding:0;margin:16px 0 0}
.split li{padding:10px 0;border-top:1px solid var(--cream-line);color:rgba(242,239,230,.88);font-size:.92rem;line-height:1.45}
.split li:first-child{border-top:0}
.split .verdict{margin-top:16px;font-weight:600;letter-spacing:-.01em}
@media(max-width:560px){.split{grid-template-columns:1fr}}

/* was / is */
.wasis{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:clamp(16px,3vw,34px);margin-top:24px}
.wasis .blk{background:var(--panel);border:1px solid var(--cream-line);border-radius:18px;padding:26px 24px}
.wasis .blk.now{border-color:var(--accent);background:var(--accent-soft)}
.wasis .wl{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cream-dim)}
.wasis .wt{margin-top:12px;font-size:1.12rem;font-weight:600;letter-spacing:-.01em;line-height:1.3}
.wasis .arrowbig{font-size:1.6rem;color:var(--accent)}
@media(max-width:640px){.wasis{grid-template-columns:1fr}.wasis .arrowbig{transform:rotate(90deg);justify-self:center}}

/* matrix / quadrant */
.matrix{width:100%;border-collapse:collapse;margin-top:22px;font-size:.88rem}
.matrix th,.matrix td{border:1px solid var(--cream-line);padding:12px 14px;text-align:center}
.matrix th{font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cream-dim);font-weight:400}
.matrix td{color:var(--cream)}
.matrix td.hi{background:var(--accent-soft);color:var(--accent);font-weight:700}

.quad{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--cream-line);border:1px solid var(--cream-line);border-radius:18px;overflow:hidden;margin-top:22px}
.qc{background:var(--ink);padding:24px 22px;min-height:150px}
.qc .qt{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.qc h4{margin:12px 0 6px;font-size:1.05rem;font-weight:700;letter-spacing:-.01em}
.qc p{margin:0;color:var(--cream-dim);font-size:.88rem;line-height:1.5}
.qc.mute .qt{color:var(--cream-dim)}
@media(max-width:560px){.quad{grid-template-columns:1fr}}

/* flow (pipeline) */
.flow{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;align-items:stretch}
.fnode{flex:1 1 130px;background:var(--panel);border:1px solid var(--cream-line);border-radius:14px;padding:16px 16px;position:relative}
.fnode .fi{font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;color:var(--accent)}
.fnode .ft{margin-top:8px;font-weight:600;letter-spacing:-.01em}
.fnode .fdd{color:var(--cream-dim);font-size:.84rem;margin-top:6px;line-height:1.45}

/* dots (dq incremental) */
.dotrow{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:14px}
.dotset{display:flex;gap:10px}
.pd{width:26px;height:26px;border-radius:50%}
.pd.on{background:var(--accent)}
.pd.blue{background:#2E7CD6}
.pd.off{background:rgba(242,239,230,.2)}
.dotrow .dlab{color:var(--cream);font-weight:600}
.dotrow .dlab b{color:var(--accent)}
.dotrow .dlab.bad b{color:#E45B6D}

/* ---------- POSITIONING HIGHLIGHT (cream block) ---------- */
.pos{background:var(--cream);color:var(--char);border-radius:24px;padding:clamp(30px,4vw,52px);margin-top:clamp(24px,3vw,30px)}
.pos .pl{font-family:var(--mono);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;color:var(--muted)}
.pos .pt{margin:16px 0 0;font-size:clamp(1.3rem,2.6vw,2rem);font-weight:600;letter-spacing:-.02em;line-height:1.22}
.pos .pt em{font-style:normal;color:#000;background:var(--accent);padding:0 .12em;border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}

/* pillars / three-up */
.threeup{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(24px,3vw,30px)}
@media(max-width:760px){.threeup{grid-template-columns:1fr}}
.pill{background:var(--panel);border:1px solid var(--cream-line);border-radius:18px;padding:26px 24px}
.pill .pn{width:30px;height:30px;border-radius:8px;background:var(--accent);color:var(--char);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.pill h3{margin:16px 0 8px;font-size:1.12rem;font-weight:700;letter-spacing:-.01em}
.pill p{margin:0;color:var(--cream-dim);font-size:.92rem;line-height:1.5}
.pill .quote{color:var(--accent);font-size:.86rem;margin-top:12px;font-style:italic}

/* steps (gtm phases) */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(24px,3vw,30px)}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
.step{background:var(--panel);border:1px solid var(--cream-line);border-radius:18px;padding:24px 22px}
.step .sh{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.step h3{margin:10px 0 12px;font-size:1.15rem;font-weight:700;letter-spacing:-.01em}
.step ul{margin:0;padding-left:18px;color:var(--cream-dim);font-size:.92rem;line-height:1.55}
.step ul li{margin:6px 0}

/* timeline (copilot execution) */
.timeline{margin-top:24px;border-left:2px solid var(--cream-line);padding-left:24px;display:flex;flex-direction:column;gap:20px}
.tl{position:relative}
.tl::before{content:"";position:absolute;left:-30px;top:5px;width:11px;height:11px;border-radius:50%;background:var(--accent)}
.tl .td{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.tl .tt{margin-top:5px;font-weight:600;letter-spacing:-.01em}
.tl .tx{color:var(--cream-dim);font-size:.9rem;margin-top:4px;line-height:1.5}

/* north star */
.north{background:var(--panel);border:1px solid var(--accent);border-radius:22px;padding:clamp(28px,3.5vw,42px);margin-top:clamp(24px,3vw,30px)}
.north .nl{font-family:var(--mono);text-transform:uppercase;letter-spacing:.14em;font-size:.68rem;color:var(--accent)}
.north .nt{margin:12px 0 0;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:700;letter-spacing:-.02em}
.north .nf{margin-top:10px;color:var(--cream-dim);font-size:.9rem}
.north .inputs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
@media(max-width:640px){.north .inputs{grid-template-columns:1fr}}
.north .inp{border-top:2px solid var(--cream-line);padding-top:12px}
.north .inp .it{font-weight:600;letter-spacing:-.01em}
.north .inp .ix{color:var(--cream-dim);font-size:.88rem;margin-top:5px;line-height:1.5}

/* risks */
.risks{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:clamp(24px,3vw,30px)}
@media(max-width:700px){.risks{grid-template-columns:1fr}}
.risk{background:var(--panel);border:1px solid var(--cream-line);border-radius:16px;padding:22px 22px;display:flex;gap:16px}
.risk .rn{font-family:var(--mono);color:var(--accent);font-size:.8rem;letter-spacing:.06em}
.risk h4{margin:0 0 8px;font-size:1rem;font-weight:700;letter-spacing:-.01em}
.risk p{margin:0;color:var(--cream-dim);font-size:.9rem;line-height:1.5}
.falsify{margin-top:20px;padding:20px 24px;border:1px dashed var(--cream-line);border-radius:14px;background:rgba(242,239,230,.03);color:rgba(242,239,230,.82);font-size:.9rem;line-height:1.5}
.falsify b{color:var(--accent);font-weight:600}

/* ---------- FOOTER / PAGE NAV ---------- */
.pagenav{border-top:1px solid var(--cream-line);margin-top:clamp(30px,5vw,60px)}
.pagenav-in{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:clamp(34px,5vw,56px) 0}
.pagenav a{display:inline-flex;flex-direction:column;gap:6px}
.pagenav .pl{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--cream-dim)}
.pagenav .pt{font-size:clamp(1.1rem,2vw,1.5rem);font-weight:700;letter-spacing:-.02em;transition:color .2s}
.pagenav a:hover .pt{color:var(--accent)}
.pagenav .next{text-align:right}
footer.foot{padding:0 0 44px}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--cream-dim)}
.foot-in a:hover{color:var(--accent)}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 .fill,.stack span{transition:none;width:var(--w)}
}

 
/* ---------- mobile-safe tables, captions, small-screen type ---------- */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-top:22px;background:linear-gradient(90deg,var(--ink) 30%,rgba(10,10,10,0)) left center/34px 100% no-repeat local,linear-gradient(90deg,rgba(10,10,10,0),var(--ink) 70%) right center/34px 100% no-repeat local,radial-gradient(farthest-side at 0 50%,rgba(242,239,230,.22),rgba(242,239,230,0)) left center/13px 100% no-repeat scroll,radial-gradient(farthest-side at 100% 50%,rgba(242,239,230,.22),rgba(242,239,230,0)) right center/13px 100% no-repeat scroll}
.tablewrap .matrix{margin-top:0;min-width:540px}
.figcap{color:rgba(242,239,230,.62);font-size:.82rem;line-height:1.5;margin-top:14px}
.foot-links{display:flex;flex-wrap:wrap;gap:22px}
.foot-links a{font-weight:600}
.foot-links a:hover{color:var(--accent)}
@media(max-width:560px){
 .hero h1{font-size:clamp(2.1rem,9vw,2.9rem)}
 .stat .n{font-size:1.85rem}
}