:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --ink: #0b1428;
  --muted: #667085;
  --line: #d9e2ec;
  --blue: #2f6bff;
  --blue-2: #5e8cff;
  --cyan: #36c5d5;
  --lime: #b7e26a;
  --orange: #ffab67;
  --navy: #08142b;
  --navy-2: #102143;
  --shadow: 0 24px 80px rgba(14, 30, 62, .12);
  --shadow-soft: 0 12px 40px rgba(14, 30, 62, .07);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
body::selection { background: #cbd9ff; }
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244,247,251,.86);
  backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid rgba(217,226,236,.8);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: Manrope, sans-serif; font-weight: 800; letter-spacing: -.035em; font-size: 18px; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  color: #fff; border-radius: 12px; font-size: 17px;
  background: linear-gradient(135deg, var(--blue), #714cff);
  box-shadow: 0 8px 22px rgba(47,107,255,.26);
}
.nav-links { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 700; }
.nav-links > a:not(.nav-cta) { color: #46536a; transition: color .2s ease; }
.nav-links > a:not(.nav-cta):hover { color: var(--blue); }
.nav-cta { color: #fff; background: var(--ink); padding: 11px 18px; border-radius: 12px; transition: transform .2s ease, background .2s ease; }
.nav-cta:hover { transform: translateY(-1px); background: #152441; }
.menu-button { display: none; background: none; border: 0; font-size: 24px; color: var(--ink); }

.hero {
  position: relative;
  isolation: isolate;
  padding: 92px 0 84px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(73,115,255,.33), transparent 26%),
    radial-gradient(circle at 62% 88%, rgba(54,197,213,.17), transparent 30%),
    linear-gradient(135deg, #071127 0%, #0a1832 55%, #10234b 100%);
  overflow: hidden;
}
.hero::before,
.hero::after { content:""; position:absolute; border-radius:999px; filter: blur(2px); z-index:-1; }
.hero::before { width:340px; height:340px; right:-120px; top:-90px; border:1px solid rgba(255,255,255,.11); }
.hero::after { width:520px; height:520px; right:-40px; top:-160px; border:1px solid rgba(255,255,255,.06); }
.hero-grid { display:grid; grid-template-columns: 1.05fr .95fr; gap: 76px; align-items:center; }
.eyebrow { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .16em; margin-bottom: 18px; text-transform: uppercase; }
.hero .eyebrow { color: #8db2ff; }
.eyebrow.light { color: #8fb3ff; }
h1,h2,h3 { font-family: Manrope, sans-serif; line-height:1.06; margin-top:0; letter-spacing:-.04em; }
h1 { font-size: clamp(54px, 7vw, 88px); max-width:800px; margin-bottom:26px; }
h1 span { color: #91b4ff; }
h2 { font-size: clamp(36px,4vw,56px); margin-bottom:18px; }
h3 { font-size:24px; }
.hero-text { max-width:670px; font-size:19px; color:#c6d1e4; }
.hero-actions { display:flex; flex-wrap:wrap; gap:14px; margin:34px 0 22px; }
.button { display:inline-flex; align-items:center; justify-content:center; gap:9px; padding:15px 20px; border-radius:13px; font-weight:800; font-size:14px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: linear-gradient(135deg, #3f78ff, #6b70ff); color:#fff; box-shadow:0 13px 32px rgba(63,120,255,.25); }
.button.primary:hover { box-shadow:0 16px 38px rgba(63,120,255,.34); }
.button.secondary { color:#fff; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18); }
.button.secondary:hover { background:rgba(255,255,255,.13); }
.hero-note { font-size:12px; color:#8898b5; }

.hero-panel {
  position:relative;
  background:rgba(255,255,255,.075);
  border:1px solid rgba(255,255,255,.13);
  box-shadow: 0 32px 90px rgba(0,0,0,.22);
  backdrop-filter: blur(18px);
  padding:24px;
  border-radius:30px;
  transform: rotate(1deg);
}
.hero-panel::before { content:""; position:absolute; width:112px; height:112px; border-radius:32px; background:linear-gradient(135deg,var(--cyan),var(--blue)); left:-28px; bottom:-26px; opacity:.18; filter:blur(2px); z-index:-1; }
.panel-topline { display:flex; justify-content:space-between; gap:20px; font-size:10px; letter-spacing:.12em; color:#93a4c4; margin-bottom:18px; }
.live-dot { color:#9dc4ff; letter-spacing:0; }
.model-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.model-card { background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.1); padding:20px; border-radius:19px; min-height:126px; display:flex; flex-direction:column; gap:7px; }
.model-card.highlight { flex-direction:row; align-items:center; justify-content:space-between; margin-bottom:12px; background:linear-gradient(135deg,#356dff,#7266ff); border:0; }
.model-card strong { font-family:Manrope,sans-serif; font-size:21px; }
.model-card small { color:#aebbd2; }
.mini-label { font-size:10px; color:#93a3c1; letter-spacing:.12em; font-weight:800; }
.highlight .mini-label { color:#d4e1ff; }
.pill { font-size:10px; padding:7px 10px; border-radius:99px; background:rgba(255,255,255,.15); }
.metric-strip { display:grid; grid-template-columns:repeat(3,1fr); gap:9px; margin-top:12px; }
.metric-strip div { background:rgba(255,255,255,.055); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:16px; }
.metric-strip b { display:block; font-size:21px; }
.metric-strip span { display:block; color:#9eacc6; font-size:10px; margin-top:2px; }

.trust-strip { border-bottom:1px solid var(--line); background:#fff; box-shadow:0 6px 22px rgba(14,30,62,.03); }
.trust-grid { display:grid; grid-template-columns:repeat(6,1fr); gap:16px; padding:20px 0; font-size:10px; letter-spacing:.12em; color:#8792a5; font-weight:800; text-align:center; }

.section { padding:104px 0; position:relative; }
.section-alt { background:#fff; }
.section-heading { display:flex; align-items:end; justify-content:space-between; gap:50px; margin-bottom:46px; }
.section-heading > div { max-width:700px; }
.section-heading > p { max-width:420px; color:var(--muted); margin:0; }
.section-heading.compact { align-items:start; }

.case-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.case-card {
  position:relative; overflow:hidden;
  background:#fff; border:1px solid var(--line); border-radius:26px; padding:26px; min-height:330px;
  display:flex; flex-direction:column;
  box-shadow:0 6px 24px rgba(14,30,62,.04);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.case-card::after { content:""; position:absolute; width:140px; height:140px; border-radius:999px; right:-64px; top:-70px; background:var(--card-accent,#dce7ff); opacity:.8; }
.case-card:nth-child(1){--card-accent:#dce7ff}.case-card:nth-child(2){--card-accent:#e8efb9}.case-card:nth-child(3){--card-accent:#eadcff}.case-card:nth-child(4){--card-accent:#ffe0c3}.case-card:nth-child(5){--card-accent:#d8f2ef}.case-card:nth-child(6){--card-accent:#ffd7de}
.case-card:hover { transform:translateY(-7px); box-shadow:var(--shadow-soft); border-color:#c8d6ea; }
.case-top { display:flex; justify-content:space-between; align-items:center; position:relative; z-index:2; }
.case-number { font-size:12px; color:#98a1b1; font-weight:800; }
.tag { background:#f1f5fb; color:#46536a; border:1px solid #e1e7f0; border-radius:99px; padding:6px 10px; font-size:10px; font-weight:800; }
.case-icon { width:54px; height:54px; display:grid; place-items:center; border-radius:17px; margin-top:36px; background:var(--card-accent); font-family:Manrope,sans-serif; font-size:20px; font-weight:800; color:#23304b; }
.case-card h3 { margin:18px 0 10px; font-size:27px; }
.case-card p { color:var(--muted); font-size:14px; }
.case-card a { margin-top:auto; color:var(--blue); font-weight:800; font-size:13px; }
.coming-badge{margin-top:auto;display:inline-flex;align-self:flex-start;padding:7px 11px;border-radius:999px;background:#f2f4f7;color:#7a8496;font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}

.topic-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.topic { position:relative; overflow:hidden; padding:28px; border-radius:25px; min-height:270px; color:#fff; background:linear-gradient(145deg,var(--navy),var(--navy-2)); border:1px solid rgba(255,255,255,.05); transition:transform .25s ease; }
.topic:hover { transform:translateY(-5px); }
.topic::after { content:""; position:absolute; width:130px; height:130px; border-radius:999px; right:-55px; bottom:-55px; background:rgba(255,255,255,.07); }
.topic:nth-child(2){background:linear-gradient(145deg,#243c88,#3159bb)}
.topic:nth-child(3){background:linear-gradient(145deg,#6d3f39,#9b5d4e)}
.topic:nth-child(4){background:linear-gradient(145deg,#175759,#237d7f)}
.topic > span { color:#a9c3ff; font-weight:800; font-size:11px; }
.topic h3 { margin:70px 0 10px; }
.topic p { color:rgba(255,255,255,.72); font-size:14px; }

.learn-grid { display:grid; grid-template-columns:.9fr 1.1fr; gap:84px; align-items:start; }
.lead { color:var(--muted); font-size:17px; max-width:560px; }
.text-link { display:inline-block; margin-top:15px; color:var(--blue); font-weight:800; }
.concept-list { border-top:1px solid var(--line); }
.concept-list > div { display:grid; grid-template-columns:190px 1fr; gap:30px; padding:24px 0; border-bottom:1px solid var(--line); transition:padding-left .2s ease; }
.concept-list > div:hover { padding-left:9px; }
.concept-list span { font-weight:800; }
.concept-list p { margin:0; color:var(--muted); }

.mission { padding-top:16px; }
.mission-card { position:relative; overflow:hidden; background:linear-gradient(135deg,#08142b,#142a58); color:#fff; border-radius:32px; padding:58px; display:grid; grid-template-columns:1.16fr .84fr; gap:70px; align-items:end; box-shadow:var(--shadow); }
.mission-card::after { content:""; position:absolute; width:360px; height:360px; border-radius:999px; right:-140px; top:-180px; border:1px solid rgba(255,255,255,.1); box-shadow:0 0 0 80px rgba(255,255,255,.025),0 0 0 160px rgba(255,255,255,.018); }
.mission-card p { color:#b8c5da; font-size:16px; position:relative; z-index:2; }

.research { background:linear-gradient(180deg,var(--bg),#fff); }
.research-grid { display:grid; grid-template-columns:1fr 1fr; gap:80px; }
.research-points { border-top:1px solid var(--line); }
.research-points div { display:grid; grid-template-columns:52px 1fr; gap:20px; padding:23px 0; border-bottom:1px solid var(--line); }
.research-points b { width:34px; height:34px; border-radius:10px; display:grid; place-items:center; background:#eaf0ff; color:var(--blue); font-size:12px; }
.research-points span { color:var(--muted); }

.footer { background:#050d1d; color:#fff; padding:56px 0; }
.footer-grid { display:grid; grid-template-columns:1fr auto 1.25fr; gap:50px; align-items:start; }
.footer-brand .brand-mark { background:linear-gradient(135deg,var(--blue),#7b67ff); color:#fff; }
.footer p { color:#8f9db8; margin:12px 0 0; font-size:13px; }
.footer-links { display:flex; flex-direction:column; gap:10px; font-size:13px; }
.footer-links a { color:#c3ccdc; }
.legal { line-height:1.75; }

/* Case study */
.case-hero { padding:84px 0 52px; background:linear-gradient(135deg,#08142b,#112a59); color:#fff; position:relative; overflow:hidden; }
.case-hero::after { content:""; position:absolute; width:430px; height:430px; border-radius:999px; right:-100px; top:-180px; background:radial-gradient(circle,rgba(73,115,255,.24),transparent 68%); }
.case-hero h1 { margin-bottom:15px; }
.case-hero .hero-text { color:#bdc8db; }
.case-layout { display:grid; grid-template-columns:280px 1fr; gap:64px; }
.case-sidebar { position:sticky; top:104px; align-self:start; }
.case-sidebar a { display:block; padding:9px 0; color:#667085; font-size:13px; font-weight:650; }
.case-sidebar a:hover { color:var(--blue); }
.case-content section { padding:40px 0; border-bottom:1px solid var(--line); }
.case-content h2 { font-size:clamp(32px,4vw,48px); }
.case-content p,.case-content li { color:var(--muted); }
.notice { background:#edf3ff; border:1px solid #d3e0ff; padding:18px; border-radius:17px; font-size:12px; color:#3c5279; margin-bottom:18px; }

.reveal { opacity:0; transform:translateY(18px); transition:opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity:1; transform:none; }

@media (max-width:900px) {
  .hero-grid,.learn-grid,.mission-card,.research-grid,.case-layout { grid-template-columns:1fr; }
  .hero { padding-top:68px; }
  .hero-grid { gap:48px; }
  .hero-panel { transform:none; }
  .case-grid { grid-template-columns:repeat(2,1fr); }
  .topic-grid { grid-template-columns:repeat(2,1fr); }
  .trust-grid { grid-template-columns:repeat(3,1fr); }
  .footer-grid { grid-template-columns:1fr; }
  .section-heading { align-items:start; flex-direction:column; gap:10px; }
  .mission-card { gap:20px; }
  .case-sidebar { position:static; }
}
@media (max-width:650px) {
  .container { width:min(100% - 26px,1180px); }
  .menu-button { display:block; }
  .nav-links { display:none; position:absolute; left:13px; right:13px; top:70px; padding:18px; background:#fff; border:1px solid var(--line); border-radius:17px; flex-direction:column; align-items:stretch; box-shadow:var(--shadow); }
  .nav-links.open { display:flex; }
  .nav-cta { text-align:center; }
  h1 { font-size:clamp(48px,15vw,66px); }
  .case-grid,.topic-grid,.model-row { grid-template-columns:1fr; }
  .trust-grid { grid-template-columns:repeat(2,1fr); }
  .metric-strip { grid-template-columns:1fr; }
  .concept-list > div { grid-template-columns:1fr; gap:6px; }
  .mission-card { padding:32px; }
  .section { padding:76px 0; }
  .hero-panel { padding:18px; }
}

/* BusinessScope V3 — editorial intelligence visual system */
:root { --bg:#f5f0e6; --surface:#fffdf8; --surface-2:#ece7de; --ink:#20334a; --muted:#5e6b7c; --line:#d8d1c6; --blue:#3e628c; --blue-2:#7189a5; --cyan:#8297ad; --lime:#aebfd1; --navy:#172b43; --navy-2:#263f5d; }
body {
  background:
    linear-gradient(rgba(11,20,40,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,20,40,.025) 1px,transparent 1px),var(--bg);
  background-size:48px 48px;
}
.brand-mark{background:var(--ink);position:relative;font-size:0;outline:1px solid rgba(201,255,72,.3);outline-offset:-5px}
.brand-mark::before,.brand-mark::after{content:"";position:absolute;background:var(--lime);border-radius:10px}
.brand-mark::before{width:16px;height:2px}.brand-mark::after{width:2px;height:16px}
.hero{background:radial-gradient(circle at 78% 28%,rgba(66,104,255,.34),transparent 27%),radial-gradient(circle at 18% 88%,rgba(201,255,72,.08),transparent 26%),linear-gradient(135deg,#050a16 0%,#09152c 60%,#101c3d 100%)}
.hero h1 span{color:var(--lime)}
.button.primary{background:var(--lime);color:#0a1325;box-shadow:0 13px 32px rgba(201,255,72,.18)}
.button.primary:hover{box-shadow:0 16px 38px rgba(201,255,72,.26)}
.hero-visual{position:relative;min-height:520px;border:1px solid rgba(255,255,255,.13);border-radius:34px;background:linear-gradient(155deg,rgba(255,255,255,.085),rgba(255,255,255,.025));box-shadow:0 38px 100px rgba(0,0,0,.32);backdrop-filter:blur(22px);overflow:hidden;padding:26px}
.hero-visual::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(to bottom,black,transparent)}
.visual-header{position:relative;z-index:2;display:flex;justify-content:space-between;font-size:10px;letter-spacing:.15em;color:#9aa8c4;font-weight:800}
.visual-header i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 16px var(--lime);margin-right:7px}
.visual-orbit{position:absolute;border:1px solid rgba(141,178,255,.17);border-radius:50%;left:50%;top:45%;transform:translate(-50%,-50%)}
.orbit-one{width:330px;height:330px}.orbit-two{width:450px;height:450px;border-style:dashed;animation:scope-spin 30s linear infinite}
.visual-core{position:absolute;z-index:3;left:50%;top:45%;transform:translate(-50%,-50%);width:210px;height:210px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;background:radial-gradient(circle at 38% 28%,#557dff,#233da0 65%,#172457);border:1px solid rgba(255,255,255,.22);box-shadow:0 25px 70px rgba(37,67,183,.48),inset 0 0 38px rgba(255,255,255,.12)}
.visual-core::after{content:"";position:absolute;inset:9px;border:1px solid rgba(255,255,255,.15);border-radius:50%}
.core-kicker{font-size:9px;letter-spacing:.17em;color:#c8d6ff;margin-bottom:9px;font-weight:800}.visual-core strong{font-family:Manrope,sans-serif;font-size:25px}.visual-core span{font-size:11px;line-height:1.4;color:#c8d5f5;margin-top:8px}
.signal{position:absolute;z-index:4;width:126px;padding:13px 14px;border-radius:15px;background:rgba(7,15,33,.84);border:1px solid rgba(255,255,255,.13);box-shadow:0 14px 34px rgba(0,0,0,.24);display:grid;grid-template-columns:23px 1fr}
.signal span{grid-row:1/3;width:18px;height:18px;display:grid;place-items:center;border-radius:6px;background:rgba(201,255,72,.12);color:var(--lime);font-size:8px;font-weight:800}.signal b{font-size:11px}.signal small{font-size:9px;color:#8795b2}.signal-customer{left:7%;top:27%}.signal-value{right:5%;top:22%}.signal-revenue{right:8%;top:61%}
.visual-insight{position:absolute;z-index:4;left:24px;right:24px;bottom:22px;padding:16px 18px;border-radius:17px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.09)}
.visual-insight p{font-size:12px;color:#d3dcee;margin:4px 0 10px}.insight-line{height:3px;background:rgba(255,255,255,.08);border-radius:9px;overflow:hidden}.insight-line span{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--lime),#67e8f9)}
@keyframes scope-spin{to{transform:translate(-50%,-50%) rotate(360deg)}}
.case-card{background:rgba(255,255,255,.94);min-height:350px}
.case-icon{width:64px;height:64px;border-radius:20px;margin-top:34px;position:relative;overflow:hidden}
.case-icon svg{width:31px;height:31px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.case-icon .filled{fill:currentColor;stroke:none}
.industry-tech{color:#2348b5;background:#dce7ff}.industry-retail{color:#617518;background:#e8efb9}
.industry-media{color:#6f36a7;background:#eadcff}.industry-consumer{color:#9c4e1f;background:#ffe0c3}
.industry-food{color:#176c65;background:#d8f2ef}.industry-mobility{color:#a62b43;background:#ffd7de}
.topic::after{content:"↗";font-size:32px;padding:24px;color:rgba(255,255,255,.55)}
@media(max-width:650px){.hero-visual{min-height:470px;padding:18px}.visual-core{width:180px;height:180px}.orbit-one{width:280px;height:280px}.orbit-two{width:380px;height:380px}.signal{width:112px}.signal-customer{left:3%}.signal-value,.signal-revenue{right:3%}}
@media(prefers-reduced-motion:reduce){.orbit-two{animation:none}.reveal{transition:none}}

/* Costco case study */
.study-page{background:#f4f7fb;color:#0b1428}.study-header{background:rgba(244,247,251,.92)}
.study-nav{display:flex}.costco-hero{position:relative;overflow:hidden;padding:82px 0 78px;color:#fff;background:radial-gradient(circle at 78% 35%,rgba(201,255,72,.14),transparent 24%),linear-gradient(135deg,#050b17,#0a1932 64%,#102648)}
.costco-hero::after{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(255,255,255,.07);border-radius:50%;right:-210px;top:-250px;box-shadow:0 0 0 80px rgba(255,255,255,.02),0 0 0 160px rgba(255,255,255,.015)}
.costco-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:90px;align-items:center;position:relative;z-index:2}.costco-hero h1{font-size:clamp(52px,6.5vw,82px);max-width:760px}.costco-hero h1 span{color:var(--lime)}
.back-link{display:inline-block;color:#9dadc9;font-size:13px;font-weight:700;margin-bottom:50px}.study-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.study-meta span{padding:7px 10px;border:1px solid rgba(255,255,255,.13);border-radius:999px;color:#aab8d1;font-size:10px;font-weight:700;letter-spacing:.04em}
.model-wheel{height:440px;position:relative}.model-wheel::before,.model-wheel::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:50%;border:1px solid rgba(255,255,255,.12)}.model-wheel::before{width:350px;height:350px}.model-wheel::after{width:260px;height:260px;border-style:dashed}
.wheel-center{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);width:170px;height:170px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(145deg,#3f6fff,#2541a2);box-shadow:0 28px 70px rgba(34,66,170,.5),inset 0 0 30px rgba(255,255,255,.1)}.wheel-center small{font-size:9px;letter-spacing:.16em;color:#c9d5ff}.wheel-center strong{font-family:Manrope,sans-serif;font-size:21px;margin-top:6px}
.wheel-node{position:absolute;z-index:3;display:flex;align-items:center;gap:9px;padding:11px 14px;background:rgba(7,15,33,.9);border:1px solid rgba(255,255,255,.14);border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,.25)}.wheel-node b{width:23px;height:23px;display:grid;place-items:center;border-radius:7px;background:rgba(201,255,72,.12);color:var(--lime);font-size:9px}.wheel-node span{font-size:11px;font-weight:700}.node-a{left:2%;top:17%}.node-b{right:0;top:20%}.node-c{right:2%;bottom:15%}.node-d{left:0;bottom:18%}
.study-stats{background:#fff;border-bottom:1px solid var(--line)}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}.stat-grid>div{padding:28px 26px;border-right:1px solid var(--line)}.stat-grid>div:first-child{border-left:1px solid var(--line)}.stat-grid span,.stat-grid small{display:block;color:#7a8496;font-size:11px}.stat-grid strong{display:block;font-family:Manrope,sans-serif;font-size:34px;letter-spacing:-.04em;margin:3px 0}
.study-layout{display:grid;grid-template-columns:220px 1fr;gap:78px}.study-rail{position:sticky;top:105px;align-self:start;border-left:1px solid var(--line);padding-left:18px}.rail-label{font-size:9px;font-weight:900;letter-spacing:.14em;color:#9aa3b3;margin-bottom:13px}.study-rail a{display:block;padding:6px 0;color:#748096;font-size:12px;font-weight:650}.study-rail a:hover{color:var(--blue)}
.study-content{max-width:820px}.study-section{padding:62px 0;border-bottom:1px solid var(--line);scroll-margin-top:100px}.study-section:first-child{padding-top:0}.section-index{font-size:10px;color:var(--blue);font-weight:900;letter-spacing:.14em;margin-bottom:17px}.study-section h2{font-size:clamp(34px,4vw,52px);max-width:760px}.study-section>p{font-size:17px;color:#59677d;line-height:1.78;max-width:760px}
.analysis{margin-top:28px;padding:22px 24px;background:#eaf0ff;border-left:4px solid var(--blue);border-radius:0 16px 16px 0}.analysis span{font-size:9px;color:var(--blue);font-weight:900;letter-spacing:.14em}.analysis p{margin:7px 0 0;color:#344561;font-weight:650}
.fact-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:28px 0}.fact-row div{padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}.fact-row b{display:block;font-size:21px}.fact-row span{font-size:11px;color:#7a8496}.value-equation{display:grid;grid-template-columns:1fr auto 1.3fr;gap:16px;align-items:center;margin:28px 0;padding:24px;background:#071127;color:#fff;border-radius:20px}.value-equation span{padding:14px;text-align:center;border:1px solid rgba(255,255,255,.1);border-radius:12px}.value-equation b{font-size:28px;color:var(--lime)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:28px 0}.process-grid div{padding:18px;background:#fff;border:1px solid var(--line);border-radius:15px}.process-grid b{display:grid;place-items:center;width:25px;height:25px;background:#eaf0ff;color:var(--blue);border-radius:8px;font-size:10px;margin-bottom:16px}.process-grid span{font-size:12px;font-weight:700}
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tier-grid>div{padding:24px;background:#fff;border:1px solid var(--line);border-radius:20px}.tier-grid span{font-size:9px;font-weight:900;letter-spacing:.13em;color:#7b879a}.tier-grid strong{display:block;font-size:30px;margin:8px 0}.tier-grid p{font-size:12px;color:#748096}.tier-grid .featured-tier{background:#0a1832;color:#fff;border-color:#0a1832}.featured-tier span{color:var(--lime)}.featured-tier p{color:#a9b6ca}
.revenue-visual{margin:28px 0;padding:25px;background:#fff;border:1px solid var(--line);border-radius:20px}.revenue-visual>div{display:grid;grid-template-columns:170px 1fr auto;gap:14px;align-items:center;margin:12px 0}.revenue-visual span{font-size:11px;color:#657187}.revenue-visual i{display:block;height:14px;border-radius:99px;background:linear-gradient(90deg,#315fff,#7293ff)}.revenue-visual .fee-line i{background:var(--lime)}.revenue-visual b{font-size:11px}
.chip-list,.advantage-map{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}.chip-list span,.advantage-map span{padding:10px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;font-weight:700}.advantage-map span{background:#0b1730;color:#fff;border-color:#0b1730}
.ops-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:26px 0}.ops-cards div{padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px}.ops-cards b,.ops-cards span{display:block}.ops-cards span{color:#7a8496;font-size:12px;margin-top:4px}.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:25px 0}.risk-grid div{padding:21px;border-radius:17px;background:#fff;border:1px solid var(--line)}.risk-grid span{display:block;color:#9a6570;font-size:9px;font-weight:900;letter-spacing:.13em;margin-bottom:8px}.risk-grid b{font-size:13px}
.lesson-section{background:#071127;color:#fff;padding:46px;border-radius:28px;border:0;margin-top:54px}.lesson-section h2{color:#fff}.lesson-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.1);padding:1px;border-radius:18px;overflow:hidden;counter-reset:item}.lesson-list li{list-style:none;background:#0c1a34;padding:18px;color:#c7d0df;font-size:13px}.lesson-section .analysis{background:rgba(201,255,72,.08);border-color:var(--lime)}.lesson-section .analysis span{color:var(--lime)}.lesson-section .analysis p{color:#d7e1ef}
.sources-section ol{padding-left:22px}.sources-section li{padding:8px 0;color:#748096}.sources-section a{color:var(--blue);font-weight:700}.source-note{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:12px!important;color:#8691a4!important}
@media(max-width:900px){.costco-hero-grid,.study-layout{grid-template-columns:1fr}.model-wheel{max-width:540px;width:100%;margin:0 auto}.study-rail{position:static;display:flex;overflow-x:auto;gap:16px;border-left:0;border-bottom:1px solid var(--line);padding:0 0 14px}.study-rail a{white-space:nowrap}.rail-label{display:none}.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-grid>div:nth-child(3){border-left:1px solid var(--line);border-top:1px solid var(--line)}.stat-grid>div:nth-child(4){border-top:1px solid var(--line)}}
@media(max-width:650px){.study-nav{display:none}.costco-hero{padding:55px 0}.costco-hero h1{font-size:48px}.back-link{margin-bottom:34px}.model-wheel{height:380px}.model-wheel::before{width:300px;height:300px}.model-wheel::after{width:220px;height:220px}.wheel-center{width:145px;height:145px}.wheel-node{padding:9px}.stat-grid{grid-template-columns:1fr 1fr}.stat-grid>div{padding:21px 15px}.stat-grid strong{font-size:27px}.study-body{padding-top:55px}.study-layout{gap:40px}.study-section{padding:48px 0}.fact-row,.tier-grid,.process-grid,.risk-grid{grid-template-columns:1fr}.value-equation{grid-template-columns:1fr;text-align:center}.process-grid div{display:flex;align-items:center;gap:12px}.process-grid b{margin:0}.lesson-section{padding:30px 23px}.lesson-list{grid-template-columns:1fr}.revenue-visual>div{grid-template-columns:1fr}.ops-cards{grid-template-columns:1fr}}
/* Warm editorial palette */
.site-header,.study-header{background:rgba(245,240,230,.93)}
.trust-strip,.section-alt,.case-card,.study-stats,.fact-row div,.process-grid div,.tier-grid>div,.revenue-visual,.chip-list span,.ops-cards div,.risk-grid div{background:var(--surface)}
.case-card:nth-child(2){--card-accent:#e7dfd2}
.industry-retail{color:#665b48;background:#e7dfd2}
.brand-mark{outline-color:rgba(174,191,209,.38)}
.hero{background:radial-gradient(circle at 78% 28%,rgba(86,119,156,.28),transparent 27%),radial-gradient(circle at 18% 88%,rgba(174,191,209,.09),transparent 26%),linear-gradient(135deg,#14263b 0%,#1c334d 60%,#2b4665 100%)}
.button.primary{background:#d3dde7;color:#20334a;box-shadow:0 13px 32px rgba(32,51,74,.15)}
.button.primary:hover{box-shadow:0 16px 38px rgba(32,51,74,.22)}
.signal span,.wheel-node b{background:rgba(174,191,209,.15)}
.insight-line span{background:linear-gradient(90deg,#8fa6bd,#c1cfdb)}
.costco-hero{background:radial-gradient(circle at 78% 35%,rgba(174,191,209,.16),transparent 24%),linear-gradient(135deg,#14263b,#1d344f 64%,#2b496a)}
.study-page{background:var(--bg);color:var(--ink)}
.lesson-section .analysis{background:rgba(174,191,209,.1)}
/* Editorial imagery */
.editorial-media{position:relative;margin:0;overflow:hidden;border-radius:28px;border:1px solid rgba(62,98,140,.18);box-shadow:0 24px 70px rgba(32,51,74,.16);background:var(--surface)}
.editorial-media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.2,1)}
.editorial-media:hover img{transform:scale(1.025)}
.hero-visual.editorial-media{padding:0;min-height:520px;transform:rotate(1deg);background:var(--surface)}
.hero-visual.editorial-media::before{display:none}
.hero-visual.editorial-media img{position:absolute;inset:0;object-position:68% center}
.image-caption{position:absolute;left:20px;right:20px;bottom:20px;display:flex;align-items:end;justify-content:space-between;gap:18px;padding:14px 16px;border:1px solid rgba(255,255,255,.5);border-radius:15px;background:rgba(23,43,67,.84);color:#fff;backdrop-filter:blur(12px)}
.image-caption span{font-size:9px;font-weight:850;letter-spacing:.14em;color:#c6d5e3}
.image-caption b{font-size:12px;text-align:right}
.research-intro h2{max-width:520px}
.research-image{margin-top:30px;aspect-ratio:3/2}
.research-image img{object-position:center}
@media(max-width:900px){.hero-visual.editorial-media{min-height:440px;transform:none}.research-image{max-width:720px}}
@media(max-width:650px){.hero-visual.editorial-media{min-height:380px}.image-caption{left:14px;right:14px;bottom:14px;align-items:start;flex-direction:column;gap:2px}.image-caption b{text-align:left}}
@media(prefers-reduced-motion:reduce){.editorial-media img{transition:none}.editorial-media:hover img{transform:none}}
.model-summary .chip-list span{background:#f4efe6;color:#20334a;border-color:#c9c1b5}