/* Cowles Strategic Advisory — site styles
   Builds on colors_and_type.css */

* { box-sizing: border-box; }
html { scroll-padding-top: 90px; }
html, body { margin: 0; padding: 0; background: var(--csa-white); color: var(--csa-ink); }
section[id] { scroll-margin-top: 90px; }

/* Phase 1: Body uses Inter */
body {
  font-family: var(--csa-sans);
  font-size: var(--csa-fs-body);
  line-height: var(--csa-lh-prose);
  -webkit-font-smoothing: antialiased;
}

/* Phase 11: Smooth scroll only when motion is OK */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

a { color: inherit; text-decoration: none; }

/* Phase 2.1: Global focus state */
:focus-visible {
  outline: none;
  box-shadow: var(--csa-focus-ring);
  border-radius: 2px;
}

/* Phase 12: Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  background: var(--csa-navy);
  color: #fff;
  font-family: var(--csa-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--csa-radius-md);
  text-decoration: none;
}
.skip-link:focus { top: 16px; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 720px) { .container { padding: 0 20px; } }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--csa-rule);
}
.site-header .row {
  display: flex; align-items: center; justify-content: space-between;
  height: 84px;
  transition: height var(--csa-duration) var(--csa-ease);
}
/* Phase 11.3: Compact header on scroll */
.site-header.scrolled .row { height: 64px; }

.site-header .logo {
  display: flex; align-items: center; gap: 12px;
  cursor: pointer;
}
.site-header .logo img { height: 52px; display: block; }

/* Phase 2.2: Nav with mint scaleX underline */
.site-header nav {
  display: flex; gap: 36px; align-items: center;
}
.site-header nav a {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-navy);
  position: relative;
  padding-bottom: 4px;
  cursor: pointer;
}
.site-header nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 100%;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.site-header nav a:hover::after,
.site-header nav a[aria-current="page"]::after,
.site-header nav a.active::after {
  transform: scaleX(1);
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--csa-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 13px 24px;
  border-radius: var(--csa-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  position: relative;
  transition: background var(--csa-duration) var(--csa-ease),
              color var(--csa-duration) var(--csa-ease),
              border-color var(--csa-duration) var(--csa-ease),
              transform var(--csa-duration) var(--csa-ease),
              box-shadow var(--csa-duration) var(--csa-ease);
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--csa-navy); color: #fff; border-color: var(--csa-navy); }
.btn--primary:hover { background: var(--csa-steel); border-color: var(--csa-steel); }

/* Phase 2.4: Primary CTA (Schedule a conversation) */
.btn--secondary {
  background: var(--csa-white);
  color: var(--csa-navy);
  border-color: var(--csa-navy);
}
.btn--secondary::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 7px;
  height: 2px;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.btn--secondary:hover {
  background: var(--csa-navy);
  color: var(--csa-white);
  border-color: var(--csa-navy);
  transform: translateY(-2px);
  box-shadow: var(--csa-shadow-md);
}
.btn--secondary:hover::after { transform: scaleX(1); }
.btn--secondary:active {
  transform: translateY(0);
  box-shadow: var(--csa-shadow-sm);
}

/* Phase 2.5: Secondary CTA (View engagements) */
.btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.btn--ghost-light:hover {
  border-color: var(--csa-mint);
  color: var(--csa-mint);
  background: transparent;
}

.btn--text {
  background: transparent; padding: 8px 0;
  color: var(--csa-blue);
  border-bottom: 1px solid transparent;
  border-radius: 0;
}
.btn--text:hover { color: var(--csa-navy); border-bottom-color: var(--csa-mint); }

/* ---------- Hero — Phase 4: gradient + noise ---------- */
.hero {
  position: relative;
  background: radial-gradient(120% 80% at 80% 20%, #144C8A 0%, #0C447C 45%, #08365F 100%);
  color: #fff;
  overflow: hidden;
  padding: 120px 0 140px;
  isolation: isolate;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: url("assets/noise.svg");
  background-size: 240px 240px;
  opacity: 0.04;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.hero .bars-bg {
  position: absolute;
  right: -60px;
  bottom: -80px;
  opacity: 0.14;
  pointer-events: none;
}

/* Phase 1: Hero eyebrow uses mono */
.hero .eyebrow {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-mint);
}
.hero h1 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  margin: 22px 0 0;
  letter-spacing: -0.015em;
  max-width: 18ch;
  text-wrap: balance;
}
.hero .lede {
  font-family: var(--csa-sans);
  font-size: var(--csa-fs-body-lg);
  line-height: 1.6;
  color: var(--csa-sky);
  margin-top: 28px;
  max-width: 60ch;
  text-wrap: pretty;
}
.hero .mint-rule {
  height: 3px; width: 72px; background: var(--csa-mint); margin: 36px 0 32px;
}
.hero .actions { display: flex; gap: 14px; align-items: center; margin-top: 4px; }

/* Hero CTA overrides: secondary reads as white-on-dark */
.hero .btn--secondary {
  border-color: rgba(255, 255, 255, 0.3);
}
.hero .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--csa-white);
  border-color: var(--csa-mint);
}
.hero .btn--secondary:hover::after { transform: scaleX(0); }

/* ---------- Section ---------- */
section.section { padding: 96px 0; }
section.section.alt { background: var(--csa-paper); }
section.section.tight { padding: 72px 0; }

/* Phase 1: Section eyebrows use mono */
.section-eyebrow {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
}
.section-head {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: clamp(1.75rem, 2.4vw + 1rem, 2.5rem);
  line-height: 1.1;
  color: var(--csa-navy);
  margin: 14px 0 0;
  letter-spacing: -0.01em;
  text-wrap: balance;
  max-width: 22ch;
}
.section-lede {
  font-family: var(--csa-sans);
  font-size: 19px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink);
  margin-top: 18px;
  max-width: 60ch;
  text-wrap: pretty;
}
.mint-rule-sm { height: 2px; width: 48px; background: var(--csa-mint); margin: 22px 0 0; }

/* ---------- Service cards — Phase 5 + Phase 7 ---------- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
@media (max-width: 900px) { .services { grid-template-columns: 1fr; } }
.service {
  background: #fff;
  border: 1px solid var(--csa-rule);
  border-radius: var(--csa-radius-md);
  padding: 32px 28px 28px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: 0 1px 2px rgba(12, 68, 124, 0.04);
  transition: transform var(--csa-duration) var(--csa-ease),
              box-shadow var(--csa-duration) var(--csa-ease),
              color var(--csa-duration) var(--csa-ease);
}
.service:hover {
  transform: translateY(-2px);
  box-shadow: var(--csa-shadow-md);
}

/* Phase 7: Card number prefix */
.service .card-num {
  font-family: var(--csa-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--csa-steel);
  letter-spacing: 0.06em;
}

/* Phase 7: Icon at 36px */
.service .icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--csa-paper);
  border-radius: var(--csa-radius-md);
  color: var(--csa-steel);
  transition: color var(--csa-duration) var(--csa-ease);
}
.service .icon svg,
.service .icon i { width: 36px; height: 36px; stroke-width: 1.5; }
.service:hover .icon { color: var(--csa-navy); }

.service h3 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--csa-navy);
  margin: 6px 0 0;
  line-height: 1.2;
  position: relative;
}
/* Phase 5: Mint underline draws in beneath card title */
.service h3::after {
  content: "";
  position: absolute;
  left: 0; bottom: -3px;
  height: 2px; width: 100%;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.service:hover h3::after { transform: scaleX(1); }

.service p {
  font-family: var(--csa-sans);
  font-size: 16px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink);
  margin: 0;
  text-wrap: pretty;
}
.service .more {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
  margin-top: 4px;
  display: inline-flex; gap: 6px; align-items: center;
}

/* ---------- Approach numbered — Phase 6 ---------- */
.approach-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 64px;
  position: relative;
  padding-left: 24px;
}
/* Phase 6: Vertical mint hairline at far left */
.approach-grid::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: var(--csa-mint);
}
@media (max-width: 900px) {
  .approach-grid { grid-template-columns: repeat(2, 1fr); padding-left: 0; }
  .approach-grid::before { display: none; }
}

.approach-item {
  position: relative;
}
.approach-item .n {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
  border-top: 2px solid var(--csa-mint);
  padding-top: 14px;
  margin-bottom: 14px;
  width: 48px;
  transition: color var(--csa-duration) var(--csa-ease);
  position: relative; z-index: 1;
}
.approach-item:hover .n { color: var(--csa-navy); }

/* Phase 6: Large display-serif watermark numerals */
.approach-item .watermark {
  font-family: var(--csa-serif);
  font-weight: 400;
  font-size: clamp(3.5rem, 6vw, 5rem);
  color: var(--csa-sky);
  line-height: 1;
  position: absolute;
  top: 6px;
  left: -6px;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.approach-item h4 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--csa-navy);
  line-height: 1.2;
  margin: 0 0 8px;
  position: relative; z-index: 1;
}
/* Phase 5: Mint underline draws full width on hover */
.approach-item h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: -3px;
  height: 2px; width: 100%;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.approach-item:hover h4::after { transform: scaleX(1); }

.approach-item p {
  font-family: var(--csa-sans);
  font-size: 15px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink-soft);
  margin: 0;
  text-wrap: pretty;
  position: relative; z-index: 1;
}

/* ---------- Engagement cards — Phase 5 ---------- */
.engagements { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 56px; }
@media (max-width: 900px) { .engagements { grid-template-columns: 1fr; } }
.engagement {
  background: #fff;
  border: 1px solid var(--csa-rule);
  border-radius: var(--csa-radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--csa-duration) var(--csa-ease),
              box-shadow var(--csa-duration) var(--csa-ease);
  display: flex; flex-direction: column;
}
.engagement:hover {
  transform: translateY(-2px);
  box-shadow: var(--csa-shadow-lg);
}
.engagement .cover {
  height: 200px;
  background: var(--csa-navy);
  position: relative;
  overflow: hidden;
  display: flex; align-items: flex-end;
  padding: 20px 24px;
}
.engagement .cover .sector {
  font-family: var(--csa-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-mint);
  position: relative;
  z-index: 2;
}
.engagement .cover svg.bars { position: absolute; right: 0; top: 0; opacity: 0.28; height: 100%; }
.engagement .body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; }
.engagement h3 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--csa-navy);
  margin: 0;
  line-height: 1.2;
  text-wrap: balance;
}
.engagement .summary {
  font-family: var(--csa-sans);
  font-size: 15px;
  color: var(--csa-ink);
  line-height: var(--csa-lh-prose);
  margin: 0;
  text-wrap: pretty;
}
.engagement .meta {
  display: flex; gap: 14px; align-items: center;
  font-family: var(--csa-mono);
  font-size: 12px;
  color: var(--csa-steel);
  letter-spacing: 0.04em;
  margin-top: 6px;
}
.engagement .meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--csa-steel); }

/* ---------- Principal block — Phase 8 ---------- */
.principal { display: grid; grid-template-columns: 360px 1fr; gap: 64px; align-items: center; }
@media (max-width: 900px) { .principal { grid-template-columns: 1fr; } }

/* Phase 8: Portrait frame — paper bg, 1px border, shadow */
.principal .portrait-frame {
  position: relative;
  background: var(--csa-paper);
  border: 1px solid var(--csa-rule);
  border-radius: var(--csa-radius-md);
  padding: 16px;
  box-shadow: var(--csa-shadow-sm);
}
/* Phase 8: Asymmetric mint L-corner (bottom-right, 8px outside frame) */
.principal .portrait-frame::after {
  content: "";
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 24px;
  height: 24px;
  border-right: 1px solid var(--csa-mint);
  border-bottom: 1px solid var(--csa-mint);
  pointer-events: none;
}
.principal .portrait {
  aspect-ratio: 4 / 5;
  background: var(--csa-navy);
  border-radius: var(--csa-radius-sm);
  position: relative;
  overflow: hidden;
}
.principal .portrait-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.principal .name {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 40px;
  color: var(--csa-navy);
  line-height: 1.1;
  margin: 14px 0 0;
}
.principal .title {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
  margin-top: 12px;
}

/* ---------- CTA strip ---------- */
.cta {
  background: var(--csa-navy);
  color: #fff;
  padding: 80px 0;
}
.cta .row { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
@media (max-width: 720px) { .cta .row { flex-direction: column; align-items: flex-start; } }
.cta h2 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.005em;
  text-wrap: balance;
  max-width: 22ch;
}
.cta .sub {
  font-family: var(--csa-sans);
  font-style: italic;
  color: var(--csa-sky);
  font-size: 18px;
  margin-top: 10px;
}

/* ---------- Footer — Phase 10 ---------- */
.site-footer {
  background: var(--csa-paper);
  border-top: 1px solid var(--csa-rule);
  padding: 56px 0 32px;
}
.site-footer .grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .site-footer .grid { grid-template-columns: 1fr; gap: 32px; }
}
.site-footer h5 {
  font-family: var(--csa-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-steel);
  margin: 0 0 14px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.site-footer li a {
  font-family: var(--csa-sans);
  font-size: 15px;
  color: var(--csa-ink);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--csa-duration) var(--csa-ease);
  cursor: pointer;
}
.site-footer li a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px; width: 100%;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.site-footer li a:hover { color: var(--csa-navy); }
.site-footer li a:hover::after { transform: scaleX(1); }

.site-footer .contact-info {
  font-family: var(--csa-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--csa-ink);
}
/* Phase 5: Email link in footer */
.site-footer .contact-info a {
  color: var(--csa-blue);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--csa-duration) var(--csa-ease);
}
.site-footer .contact-info a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px; width: 100%;
  background: var(--csa-mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--csa-duration) var(--csa-ease);
}
.site-footer .contact-info a:hover { color: var(--csa-navy); }
.site-footer .contact-info a:hover::after { transform: scaleX(1); }

.site-footer .legal {
  margin-top: 48px;
  border-top: 1px solid var(--csa-steel);
  padding-top: 24px;
  font-family: var(--csa-mono);
  font-size: 12px;
  color: var(--csa-steel);
  display: flex; justify-content: space-between; align-items: center;
  letter-spacing: 0.04em;
}
.site-footer .legal a {
  color: var(--csa-steel);
  transition: color var(--csa-duration) var(--csa-ease);
}
.site-footer .legal a:hover { color: var(--csa-navy); }
.site-footer .tagline {
  font-family: var(--csa-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--csa-navy);
  margin-top: 16px;
  border-left: 2px solid var(--csa-mint);
  padding-left: 14px;
}

/* ---------- Case study detail ---------- */
.cs-hero {
  background: var(--csa-navy);
  color: #fff;
  padding: 96px 0 80px;
  position: relative;
  overflow: hidden;
}
.cs-hero .breadcrumb {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-mint);
  cursor: pointer;
  display: inline-flex; gap: 8px; align-items: center;
}
.cs-hero h1 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  margin: 20px 0 0;
  max-width: 22ch;
  text-wrap: balance;
}
.cs-hero .meta {
  margin-top: 36px;
  display: flex; gap: 36px;
  font-family: var(--csa-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-sky);
}
.cs-hero .meta span strong { display: block; color: #fff; font-weight: 500; margin-bottom: 4px; font-size: 11px; letter-spacing: 0.06em; }
.cs-hero .meta span div {
  font-family: var(--csa-serif);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: #fff;
  margin-top: 2px;
}

.cs-body {
  display: grid; grid-template-columns: 220px 1fr;
  gap: 64px;
  padding: 80px 0 96px;
  align-items: start;
}
@media (max-width: 900px) { .cs-body { grid-template-columns: 1fr; gap: 32px; } }
.cs-side {
  position: sticky; top: 100px;
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-steel);
}
.cs-side ol { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.cs-side li { cursor: pointer; padding: 6px 0; border-left: 2px solid var(--csa-rule); padding-left: 14px; }
.cs-side li.active { color: var(--csa-navy); border-left-color: var(--csa-mint); }

.cs-section { margin-bottom: 56px; }
.cs-section h2 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 30px;
  color: var(--csa-navy);
  margin: 0 0 16px;
  line-height: 1.15;
}
.cs-section p {
  font-family: var(--csa-sans);
  font-size: 18px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink);
  margin: 0 0 16px;
  max-width: 64ch;
  text-wrap: pretty;
}
.cs-section .pullquote {
  margin: 32px 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--csa-mint);
  font-family: var(--csa-serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.4;
  color: var(--csa-navy);
  max-width: 56ch;
  text-wrap: balance;
}
.outcomes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 24px; }
@media (max-width: 720px) { .outcomes-grid { grid-template-columns: 1fr; } }
.stat .n {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  color: var(--csa-navy);
  letter-spacing: -0.02em;
}
.stat .n .unit { color: var(--csa-mint); }
.stat .lbl {
  font-family: var(--csa-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
  margin-top: 8px;
}
.stat .desc {
  font-family: var(--csa-sans);
  font-size: 15px;
  color: var(--csa-ink-soft);
  margin-top: 6px;
  line-height: 1.5;
  text-wrap: pretty;
}

/* ---------- Contact form — Phase 9 ---------- */
.contact-page { padding: 96px 0; min-height: 80vh; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 32px; } }

.form .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form label {
  font-family: var(--csa-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-steel);
}
.form input, .form textarea, .form select {
  font-family: var(--csa-sans);
  font-size: 16px;
  color: var(--csa-ink);
  background: #fff;
  border: 1px solid var(--csa-rule);
  border-radius: var(--csa-radius-md);
  padding: 14px 14px;
  min-height: 52px;
  transition: border-color var(--csa-duration) var(--csa-ease),
              box-shadow var(--csa-duration) var(--csa-ease);
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--csa-mint);
  box-shadow: var(--csa-focus-ring);
}
.form textarea { min-height: 140px; resize: vertical; }
.form .help { font-family: var(--csa-mono); font-size: 12px; color: var(--csa-steel); letter-spacing: 0.02em; }

/* Phase 9: Privileged note above form */
.form-note {
  font-family: var(--csa-mono);
  font-size: var(--csa-fs-caption);
  color: var(--csa-fg-soft);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.success {
  background: var(--csa-paper);
  border: 1px solid var(--csa-rule);
  border-left: 3px solid var(--csa-mint);
  padding: 32px 28px;
  border-radius: var(--csa-radius-md);
}
.success h3 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: 26px;
  color: var(--csa-navy);
  margin: 0 0 8px;
}
.success p {
  font-family: var(--csa-sans);
  font-size: 17px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink);
  margin: 0;
  text-wrap: pretty;
}

/* ---------- Single-page overrides ---------- */

.services--four { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) { .services--four { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .services--four { grid-template-columns: 1fr; } }

/* Phase 4: Featured engagement — gradient + noise, same treatment as hero */
.featured-engagement {
  margin-top: 56px;
  background: #fff;
  border: 1px solid var(--csa-rule);
  border-radius: var(--csa-radius-md);
  overflow: hidden;
  box-shadow: var(--csa-shadow-sm);
  transition: transform var(--csa-duration) var(--csa-ease),
              box-shadow var(--csa-duration) var(--csa-ease);
}
.featured-engagement:hover {
  transform: translateY(-2px);
  box-shadow: var(--csa-shadow-lg);
}
.featured-engagement .fe-head {
  position: relative;
  background: radial-gradient(120% 80% at 80% 20%, #144C8A 0%, #0C447C 45%, #08365F 100%);
  color: #fff;
  padding: 36px 40px 32px;
  overflow: hidden;
  isolation: isolate;
}
.featured-engagement .fe-head::after {
  content: "";
  position: absolute; inset: 0;
  background-image: url("assets/noise.svg");
  background-size: 240px 240px;
  opacity: 0.04;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 0;
}
.featured-engagement .fe-head > * { position: relative; z-index: 1; }
.featured-engagement .fe-head .bars {
  position: absolute; right: -40px; top: -20px;
  width: 460px; height: calc(100% + 40px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}
.featured-engagement .fe-head .label {
  font-family: var(--csa-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--csa-mint);
}
.featured-engagement .fe-head h3 {
  font-family: var(--csa-serif);
  font-weight: 700;
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.15;
  color: #fff;
  margin: 12px 0 0;
  max-width: 24ch;
  text-wrap: balance;
}
.featured-engagement .fe-head .meta {
  margin-top: 24px;
  display: flex; flex-wrap: wrap; gap: 36px;
  font-family: var(--csa-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-sky);
}
.featured-engagement .fe-head .meta span strong {
  display: block;
  color: var(--csa-sky);
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 10px;
  letter-spacing: 0.06em;
}
.featured-engagement .fe-head .meta span div {
  font-family: var(--csa-serif);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: #fff;
}

.featured-engagement .fe-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 40px;
}
@media (max-width: 900px) {
  .featured-engagement .fe-body { grid-template-columns: 1fr; gap: 32px; padding: 32px 28px; }
  .featured-engagement .fe-head { padding: 28px 28px 24px; }
}
.fe-body .fe-col h4 {
  font-family: var(--csa-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-blue);
  margin: 0 0 12px;
  padding-top: 12px;
  border-top: 2px solid var(--csa-mint);
  width: 48px;
}
.fe-body .fe-col p {
  font-family: var(--csa-sans);
  font-size: 16px;
  line-height: var(--csa-lh-prose);
  color: var(--csa-ink);
  margin: 0 0 14px;
  text-wrap: pretty;
}

.featured-engagement .fe-outcomes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--csa-rule);
  background: var(--csa-paper);
}
@media (max-width: 720px) {
  .featured-engagement .fe-outcomes { grid-template-columns: 1fr; }
  .featured-engagement .fe-outcomes .stat { border-right: 0; border-bottom: 1px solid var(--csa-rule); }
  .featured-engagement .fe-outcomes .stat:last-child { border-bottom: 0; }
}
.featured-engagement .fe-outcomes .stat {
  padding: 28px 32px;
  border-right: 1px solid var(--csa-rule);
}
.featured-engagement .fe-outcomes .stat:last-child { border-right: 0; }

.engagements--three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1100px) { .engagements--three { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px)  { .engagements--three { grid-template-columns: 1fr; } }

.subsection-head {
  font-family: var(--csa-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--csa-steel);
  margin: 72px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--csa-rule);
}

.contact-section { padding: 96px 0; background: #fff; }
.contact-section .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 900px) { .contact-section .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

.engagement.static { cursor: default; }
.engagement.static:hover { transform: none; box-shadow: 0 1px 2px rgba(12, 68, 124, 0.04); }

/* Phase 11: Section reveal animation */
.section-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 220ms var(--csa-ease), transform 220ms var(--csa-ease);
}
.section-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .section-reveal { opacity: 1; transform: none; transition: none; }
}

/* Phase 12: Reduced-motion guard for all transitions */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(8px);
  animation: csa-fade 480ms var(--csa-ease) forwards;
}
@keyframes csa-fade {
  to { opacity: 1; transform: translateY(0); }
}