:root {
  --white: #ffffff;
  --canvas: #f7f8fa;
  --blue-tint: #edf2ff;
  --blue-tint-strong: #dce6ff;
  --ink: #111827;
  --muted: #667085;
  --line: #e4e7ec;
  --blue: #2f61e7;
  --blue-dark: #214ac2;
  --sans: 'Manrope', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --page: min(1180px, calc(100% - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--sans); font-size: 16px; line-height: 1.6; }
a { color: inherit; text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { color: var(--blue); }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }

.cs-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 78px; padding: 12px max(32px, calc((100vw - 1180px) / 2)); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .95); backdrop-filter: blur(16px); }
.cs-brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; }
.cs-brand:hover { color: var(--ink); }
.cs-brand-mark { display: grid; width: 42px; height: 42px; place-items: center; border: 2px solid var(--blue); border-radius: 50%; color: var(--blue); background: var(--blue-tint); font-size: 15px; font-weight: 800; letter-spacing: -.08em; }
.cs-brand-mark span { color: var(--ink); }
.cs-brand strong, .cs-brand small { display: block; line-height: 1.15; }
.cs-brand strong { font-size: 14px; letter-spacing: -.03em; }
.cs-brand small, .cs-eyebrow { color: var(--blue); font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: .075em; text-transform: uppercase; }
.cs-brand small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.cs-header nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 38px); }
.cs-header nav a { color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.cs-header nav a:hover, .cs-header nav a[aria-current='page'] { color: var(--ink); }

.cs-shell { width: var(--page); margin: 0 auto; }
.cs-library-hero { padding: 110px 0 84px; border-bottom: 1px solid var(--line); background: linear-gradient(135deg, var(--white) 0%, var(--white) 62%, var(--blue-tint) 100%); }
.cs-eyebrow { margin: 0; }
.cs-library-hero h1, .cs-detail h1 { max-width: 860px; margin: 20px 0 0; font-size: clamp(2.8rem, 5.6vw, 5.65rem); font-weight: 800; letter-spacing: -.07em; line-height: .96; }
.cs-lede { max-width: 700px; margin: 30px 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.7; }
.cs-company-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 37px; }
.cs-company-links a { padding: 8px 11px; border: 1px solid #cbd8ff; border-radius: 999px; color: var(--blue); background: rgba(255, 255, 255, .74); font-size: 11px; font-weight: 700; text-decoration: none; }
.cs-company-links a:hover { border-color: var(--blue); background: var(--blue); color: var(--white); }

.cs-company-directory { padding: 40px 0; border-bottom: 1px solid var(--line); background: var(--canvas); }
.cs-company-card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 17px; }
.cs-company-card { display: grid; min-height: 140px; align-content: space-between; padding: 18px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: var(--white); text-decoration: none; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
.cs-company-card:hover { border-color: #aebfff; color: var(--ink); box-shadow: 0 12px 24px rgba(47, 97, 231, .08); transform: translateY(-2px); }
.cs-company-card strong { font-size: 1.05rem; font-weight: 800; letter-spacing: -.035em; line-height: 1.15; }
.cs-company-card > span:last-child { color: var(--blue); font-size: 11px; font-weight: 800; }

.cs-library { padding: 90px 0 110px; }
.cs-company-section + .cs-company-section { margin-top: 94px; }
.cs-company-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; padding-bottom: 19px; border-bottom: 1px solid var(--line); }
.cs-company-heading h2 { margin: 0; font-size: clamp(1.75rem, 3vw, 3rem); font-weight: 800; letter-spacing: -.06em; line-height: 1; }
.cs-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.cs-card { display: flex; min-height: 278px; flex-direction: column; padding: 25px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); box-shadow: 0 1px 0 rgba(17, 24, 39, .015); transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
.cs-card:hover { border-color: #aebfff; box-shadow: 0 14px 30px rgba(47, 97, 231, .09); transform: translateY(-3px); }
.cs-card-label { margin: 0; color: var(--blue); font-family: var(--mono); font-size: 9px; letter-spacing: .075em; text-transform: uppercase; }
.cs-card h2 { margin: 12px 0 0; font-size: 1.22rem; font-weight: 800; letter-spacing: -.045em; line-height: 1.17; }
.cs-card h2 a { color: var(--ink); text-decoration: none; }
.cs-card h2 a:hover { color: var(--blue); }
.cs-card > p:not(.cs-card-label) { margin: 14px 0 0; color: var(--muted); font-size: .94rem; line-height: 1.62; }
.cs-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 19px 0 0; padding: 0; list-style: none; }
.cs-tags li { padding: 5px 8px; border-radius: 5px; color: #344054; background: var(--canvas); font-size: 10px; font-weight: 700; line-height: 1.25; }
.cs-text-link { display: inline-flex; align-items: center; gap: 7px; margin-top: auto; padding-top: 22px; color: var(--blue); font-size: 12px; font-weight: 800; text-decoration: none; }
.cs-text-link:hover { color: var(--blue-dark); }

.cs-detail { padding: 72px 0 104px; background: var(--white); }
.cs-back { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-size: 12px; font-weight: 800; text-decoration: none; }
.cs-detail .cs-eyebrow { margin-top: 52px; }
.cs-detail h1 { max-width: 980px; margin-top: 17px; font-size: clamp(2.35rem, 5vw, 4.75rem); }
.cs-source-title { max-width: 760px; margin: 16px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.cs-detail-intro { max-width: 805px; margin-top: 30px; color: var(--muted); font-size: clamp(1.05rem, 1.45vw, 1.18rem); line-height: 1.75; }
.cs-detail-intro p { margin: 0; }
.cs-detail-tags { margin-top: 28px; }
.cs-detail-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); gap: 14px; margin-top: 74px; }
.cs-detail-panel { padding: 28px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
.cs-detail-panel:first-child { grid-column: 1 / -1; background: var(--blue-tint); border-color: #cfdbff; }
.cs-detail-panel > p:not(.cs-eyebrow) { max-width: 760px; margin: 17px 0 0; color: var(--ink); font-size: 1.1rem; font-weight: 700; letter-spacing: -.025em; line-height: 1.55; }
.cs-detail-panel ul { display: grid; gap: 12px; margin: 18px 0 0; padding-left: 18px; color: var(--muted); }
.cs-detail-panel li::marker { color: var(--blue); }
.cs-empty { margin: 18px 0 0; color: var(--muted); }
.cs-source-callout { display: flex; align-items: center; justify-content: space-between; gap: 34px; margin-top: 14px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.cs-source-callout h2 { margin: 10px 0 0; font-size: clamp(1.55rem, 2.3vw, 2.25rem); font-weight: 800; letter-spacing: -.05em; line-height: 1.08; }
.cs-source-callout p:not(.cs-eyebrow) { max-width: 620px; margin: 12px 0 0; color: var(--muted); font-size: .98rem; }
.cs-button { display: inline-flex; flex: 0 0 auto; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 13px 17px; border: 1px solid var(--blue); border-radius: 6px; color: var(--white); background: var(--blue); font-size: 12px; font-weight: 800; text-decoration: none; transition: background .2s ease, transform .2s ease; }
.cs-button:hover { color: var(--white); background: var(--blue-dark); transform: translateY(-2px); }
.cs-case-pager { display: flex; justify-content: space-between; gap: 20px; padding-top: 30px; }
.cs-case-pager a { color: var(--blue); font-size: 12px; font-weight: 800; text-decoration: none; }
.cs-case-pager a:last-child { margin-left: auto; text-align: right; }

.cs-footer { display: flex; width: var(--page); align-items: center; justify-content: space-between; gap: 20px; margin: 0 auto; padding: 24px 0 32px; color: var(--muted); border-top: 1px solid var(--line); font-family: var(--mono); font-size: 10px; letter-spacing: .04em; }
.cs-footer p { margin: 0; }
.cs-footer a { color: var(--muted); text-decoration: none; }
.cs-footer a:hover { color: var(--blue); }

@media (max-width: 800px) {
  :root { --page: min(100% - 44px, 1180px); }
  .cs-header { flex-wrap: wrap; gap: 4px 18px; padding: 10px 22px 0; }
  .cs-header nav { order: 3; flex: 1 0 100%; gap: 22px; padding: 8px 0 10px; overflow-x: auto; scrollbar-width: none; }
  .cs-header nav::-webkit-scrollbar { display: none; }
  .cs-header nav a { flex: 0 0 auto; }
  .cs-company-card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cs-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cs-detail-grid { grid-template-columns: 1fr; }
  .cs-detail-panel:first-child { grid-column: auto; }
}

@media (max-width: 560px) {
  :root { --page: min(100% - 32px, 1180px); }
  .cs-header { padding-right: 16px; padding-left: 16px; }
  .cs-header nav { gap: 17px; }
  .cs-header nav a { font-size: 11px; }
  .cs-library-hero { padding: 70px 0 58px; }
  .cs-library-hero h1, .cs-detail h1 { font-size: clamp(2.35rem, 11vw, 3.3rem); }
  .cs-lede { margin-top: 23px; }
  .cs-company-links { margin-top: 27px; }
  .cs-company-directory { padding: 30px 0; }
  .cs-company-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .cs-company-card { min-height: 124px; padding: 15px; }
  .cs-company-card strong { font-size: .95rem; }
  .cs-library { padding: 60px 0 74px; }
  .cs-company-section + .cs-company-section { margin-top: 62px; }
  .cs-company-heading { display: block; margin-bottom: 20px; }
  .cs-company-heading h2 { margin-top: 8px; }
  .cs-card-grid { grid-template-columns: 1fr; gap: 10px; }
  .cs-card { min-height: 0; padding: 22px; }
  .cs-detail { padding: 48px 0 72px; }
  .cs-detail .cs-eyebrow { margin-top: 40px; }
  .cs-detail h1 { margin-top: 14px; }
  .cs-detail-intro { margin-top: 23px; }
  .cs-detail-grid { gap: 10px; margin-top: 50px; }
  .cs-detail-panel { padding: 22px; }
  .cs-source-callout { display: grid; gap: 22px; padding: 30px 0; }
  .cs-button { width: 100%; }
  .cs-case-pager { padding-top: 24px; }
  .cs-footer { display: grid; gap: 9px; padding: 21px 0 26px; }
}

@media (max-width: 360px) {
  .cs-header nav { gap: 12px; }
  .cs-header nav a { font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}