/* Blue Shades website: local HTML, CSS, JavaScript and images only. */
:root {
  --brand-blue: #1c86be;
  --brand-hover: #126b98;
  --brand-ink: #0d2034;
  --brand-light: #eef7fc;
  --brand-pale: #f3f9fc;
  --slate-50: #f7f9fb;
  --slate-100: #edf1f4;
  --slate-200: #dce3e8;
  --slate-300: #c3cdd5;
  --slate-400: #80909e;
  --slate-500: #5f6f7d;
  --slate-600: #435565;
  --slate-800: #1e2f3e;
  --white: #fff;
  --shadow-sm: 0 12px 35px rgba(13, 32, 52, .07);
  --shadow-xl: 0 30px 90px rgba(13, 32, 52, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--brand-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.modal-open,
body.menu-open { overflow: hidden; }
button,
a { font: inherit; }
button { border: 0; background: transparent; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
[data-lang][hidden] { display: none !important; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  transform: translateY(-150%);
  padding: 12px 16px;
  background: var(--brand-ink);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }
:focus-visible {
  outline: 3px solid #f2b544;
  outline-offset: 3px;
}

.site-header {
  position: fixed;
  z-index: 60;
  inset: 0 0 auto;
  padding: 21px 0;
  transition: padding .25s ease, background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled {
  padding: 11px 0;
  border-bottom: 1px solid var(--slate-100);
  background: rgba(255, 255, 255, .96);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.brand-link { display: block; }
.brand-logo { width: auto; height: 42px; }
.desktop-nav { display: flex; align-items: center; gap: 27px; }
.desktop-nav > a,
.desktop-nav > button:not(.nav-cta),
.language-button {
  color: var(--slate-600);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: .075em;
  transition: color .2s;
}
.desktop-nav > a:hover,
.desktop-nav > a.active,
.desktop-nav > button:not(.nav-cta):hover,
.language-button:hover { color: var(--brand-blue); }
.nav-cta {
  padding: 13px 20px;
  border-radius: 3px;
  background: var(--brand-ink);
  color: var(--white);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: .055em;
  transition: background .2s;
}
.nav-cta:hover { background: var(--brand-blue); }
.mobile-actions { display: none; align-items: center; gap: 14px; }
.menu-button { width: 40px; height: 40px; padding: 10px 8px; }
.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--brand-ink);
  transition: transform .2s, opacity .2s;
}
.menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  visibility: hidden;
  flex-direction: column;
  gap: 25px;
  align-items: center;
  padding: 112px 24px 28px;
  transform: translateY(-100%);
  background: var(--white);
  opacity: 0;
  pointer-events: none;
  transition: transform .3s ease, opacity .3s ease, visibility 0s linear .3s;
}
.mobile-menu.active {
  visibility: visible;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  transition-delay: 0s;
}
.mobile-menu > a { color: var(--brand-blue); font-size: 24px; font-weight: 820; }
.mobile-menu-cta {
  width: min(100%, 420px);
  margin-top: 10px;
  padding: 18px;
  background: var(--brand-ink);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
}

.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 680px;
  padding: 122px 0 68px;
  overflow: hidden;
  background: #f9fbfc;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: .3;
  background-image: radial-gradient(circle at 1px 1px, #b7c8d5 1px, transparent 0);
  background-size: 42px 42px;
  mask-image: linear-gradient(to right, black, transparent 88%);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, .6fr);
  gap: 70px;
  align-items: center;
}
.eyebrow-text,
.section-kicker {
  margin: 0 0 20px;
  color: var(--brand-blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero-copy h1 {
  max-width: 820px;
  margin: 0 0 25px;
  color: var(--brand-ink);
  font-size: clamp(3rem, 4.75vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -.057em;
  line-height: 1;
}
.brand-text { color: var(--brand-blue); }
.hero-lead {
  max-width: 800px;
  margin: 0;
  color: var(--slate-600);
  font-size: clamp(1.02rem, 1.45vw, 1.2rem);
  line-height: 1.62;
}
.hero-proofline {
  max-width: 780px;
  margin: 19px 0 0;
  color: var(--brand-ink);
  font-size: .9rem;
  font-weight: 720;
  line-height: 1.55;
}
.hero-actions,
.contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.hero-actions { margin-top: 31px; }
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 16px 25px;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .025em;
  transition: background .2s, color .2s, transform .2s;
}
.primary-button { background: var(--brand-ink); color: var(--white); box-shadow: var(--shadow-sm); }
.primary-button:hover,
.primary-button.blue { background: var(--brand-blue); }
.primary-button.blue:hover { background: var(--brand-hover); }
.secondary-button { background: var(--white); color: var(--brand-ink); }
.secondary-button:hover { background: var(--brand-light); }
.text-button {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-height: 48px;
  padding: 0 6px;
  color: var(--brand-blue);
  font-size: 13px;
  font-weight: 800;
}
.text-button > span:last-child { font-size: 18px; transition: transform .2s; }
.text-button:hover > span:last-child { transform: translateY(3px); }
.hero-diagnostic {
  padding: 29px;
  border: 1px solid rgba(28, 134, 190, .2);
  border-top: 4px solid var(--brand-blue);
  background: rgba(255, 255, 255, .9);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
}
.diagnostic-label,
.panel-label {
  display: block;
  margin: 0 0 20px;
  color: var(--brand-blue);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.interface-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 9px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--slate-100);
  color: var(--brand-ink);
  font-size: 12px;
  font-weight: 760;
}
.interface-row b { color: var(--brand-blue); font-size: 17px; }
.section { padding: 96px 0; scroll-margin-top: 72px; }
.section-white { background: var(--white); }
.section-muted { background: var(--slate-50); }
.section-dark { background: var(--brand-ink); color: var(--white); }
.section-title {
  max-width: 850px;
  margin: 0;
  color: var(--brand-ink);
  font-size: clamp(2.15rem, 4.25vw, 3.65rem);
  font-weight: 800;
  letter-spacing: -.05em;
  line-height: 1.05;
}
.section-deck {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--slate-600);
  font-size: 1.07rem;
  line-height: 1.72;
}

.challenge-intro,
.experience-heading,
.approach-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(310px, .6fr);
  gap: 82px;
  align-items: end;
  margin-bottom: 48px;
}
.challenge-intro > p,
.experience-heading > p,
.approach-intro > p {
  margin: 0;
  color: var(--slate-600);
  font-size: 1.04rem;
  line-height: 1.72;
}
.challenge-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--slate-300);
}
.challenge-list article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  min-height: 150px;
  padding: 27px 28px 27px 0;
  border-bottom: 1px solid var(--slate-300);
}
.challenge-list article:nth-child(odd) { border-right: 1px solid var(--slate-300); }
.challenge-list article:nth-child(even) { padding-left: 28px; }
.challenge-list article > span {
  color: var(--brand-blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .1em;
}
.challenge-list p {
  margin: 0;
  color: var(--slate-600);
  font-size: .94rem;
  line-height: 1.62;
}
.challenge-list h3 {
  margin: 0 0 9px;
  color: var(--slate-800);
  font-size: 1.08rem;
  font-weight: 780;
  line-height: 1.42;
}

.why-profile-grid {
  display: grid;
  grid-template-columns: minmax(300px, .62fr) minmax(0, 1.38fr);
  gap: 86px;
  align-items: center;
}
.why-steps { margin-top: 52px; border-top: 1px solid var(--slate-300); }
.why-steps article {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  padding: 29px 0;
  border-bottom: 1px solid var(--slate-300);
}
.why-steps article > span {
  color: var(--brand-blue);
  font-size: 1.5rem;
  font-weight: 850;
  letter-spacing: -.03em;
}
.why-steps h3 { margin: 0 0 9px; color: var(--brand-blue); font-size: 1.28rem; font-weight: 850; }
.why-steps p { max-width: 850px; margin: 0; color: var(--slate-600); line-height: 1.68; }
.proof-strip {
  display: grid;
  grid-template-columns: .95fr 1.08fr 1.05fr 1fr;
  background: var(--brand-ink);
}
.credibility-section { background: var(--brand-ink); }
.proof-strip > div {
  min-height: 128px;
  padding: 28px 27px;
  border-right: 1px solid rgba(255, 255, 255, .12);
}
.proof-strip > div:last-child { border-right: 0; }
.proof-strip strong {
  display: block;
  margin-bottom: 8px;
  color: #6fc3ef;
  font-size: 1.25rem;
  font-weight: 850;
  letter-spacing: -.03em;
  line-height: 1.18;
}
.proof-strip > div > span { color: #b8c7d2; font-size: 11px; font-weight: 650; line-height: 1.45; }

.experience-list { border-top: 1px solid var(--slate-300); }
.case-preview {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr) 230px;
  gap: 30px;
  align-items: center;
  padding: 30px 0;
  border-bottom: 1px solid var(--slate-300);
  transition: background .2s, padding .2s;
}
.case-preview:hover { padding-right: 14px; padding-left: 14px; background: var(--white); }
.preview-index > span {
  display: block;
  margin-bottom: 12px;
  color: var(--brand-blue);
  font-size: 2rem;
  font-weight: 850;
  letter-spacing: -.04em;
}
.preview-index small {
  color: var(--slate-500);
  font-size: 10px;
  font-weight: 790;
  letter-spacing: .08em;
  line-height: 1.45;
  text-transform: uppercase;
}
.preview-situation h3 {
  margin: 0 0 11px;
  color: var(--brand-ink);
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.14;
}
.preview-situation p { margin: 0; color: var(--slate-600); line-height: 1.66; }
.preview-role {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px 15px;
  align-items: center;
  padding-left: 24px;
  border-left: 1px solid var(--slate-300);
}
.preview-role strong {
  grid-column: 1;
  color: var(--brand-blue);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.preview-role > span { grid-column: 1; color: var(--slate-600); font-size: 12px; font-weight: 650; line-height: 1.5; }
.preview-role small { display: block; margin-top: 7px; color: var(--slate-400); font-size: 10px; font-weight: 600; line-height: 1.45; }
.preview-role b { grid-column: 2; grid-row: 1 / 3; color: var(--brand-blue); font-size: 20px; transition: transform .2s; }
.case-preview:hover .preview-role b { transform: translateX(4px); }
.section-action { margin-top: 31px; text-align: center; }
.evidence-note { margin-top: 18px; color: var(--slate-400); font-size: 11px; line-height: 1.55; }

.ai-section { background: var(--brand-pale); }
.ai-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, .58fr);
  gap: 84px;
  align-items: center;
}
.ai-message > p:last-child {
  max-width: 780px;
  margin: 27px 0 0;
  color: var(--slate-600);
  font-size: 1.07rem;
  line-height: 1.72;
}
.ai-evidence {
  padding: 30px;
  border-top: 4px solid var(--brand-blue);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.ai-evidence > div { padding: 19px 0; border-top: 1px solid var(--slate-200); }
.ai-evidence strong { color: var(--brand-blue); font-size: 10px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.ai-evidence p { margin: 8px 0 0; color: var(--slate-600); font-size: .9rem; line-height: 1.65; }
.ai-questions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 50px;
  border: 1px solid var(--slate-200);
  background: var(--slate-200);
}
.ai-questions article { min-height: 205px; padding: 24px; background: var(--white); }
.ai-questions article > span { color: var(--brand-blue); font-size: 11px; font-weight: 850; letter-spacing: .1em; }
.ai-questions h3 { margin: 40px 0 0; color: var(--brand-ink); font-size: 1.03rem; font-weight: 760; line-height: 1.52; }

.section-dark .section-kicker { color: #6fc3ef; }
.section-dark .section-title { color: var(--white); }
.approach-intro > p { color: #b8c7d2; }
.approach-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, .17);
  border-bottom: 1px solid rgba(255, 255, 255, .17);
}
.approach-track article {
  position: relative;
  min-height: 250px;
  padding: 28px 27px;
  border-right: 1px solid rgba(255, 255, 255, .17);
}
.approach-track article:last-child { border-right: 0; }
.approach-track article > span { color: #6fc3ef; font-size: 11px; font-weight: 850; letter-spacing: .1em; }
.approach-track article:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 1;
  top: 27px;
  right: -9px;
  color: #6fc3ef;
  font-size: 16px;
}
.approach-track h3 { margin: 48px 0 14px; color: var(--white); font-size: 1.5rem; font-weight: 800; }
.approach-track p { margin: 0; color: #b8c7d2; font-size: .94rem; line-height: 1.65; }

.approach-capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid rgba(255, 255, 255, .17);
  border-bottom: 1px solid rgba(255, 255, 255, .17);
}
.approach-capabilities p {
  min-height: 94px;
  margin: 0;
  padding: 24px 27px;
  border-right: 1px solid rgba(255, 255, 255, .17);
  color: #d3dee6;
  font-size: .86rem;
  font-weight: 700;
  line-height: 1.55;
}
.approach-capabilities p:last-child { border-right: 0; }
.approach-capabilities p::before {
  content: "—";
  display: block;
  margin-bottom: 8px;
  color: #6fc3ef;
}
.portrait-frame {
  position: relative;
  max-width: 420px;
  aspect-ratio: 4 / 4.7;
}
.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 18px;
  z-index: 0;
  transform: translate(18px, 18px);
  border: 2px solid var(--brand-blue);
}
.portrait-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 24%;
  box-shadow: var(--shadow-xl);
}
.about-lead {
  max-width: 780px;
  margin: 25px 0 0;
  color: var(--slate-600);
  font-size: 1.08rem;
  line-height: 1.74;
}
.short-bio {
  margin: 27px 0 0;
  color: var(--brand-ink);
  font-size: .95rem;
  font-weight: 680;
  line-height: 1.65;
}

.contact-section { padding: 92px 0; background: var(--white); text-align: center; }
.contact-panel {
  padding: clamp(46px, 7vw, 78px);
  background: var(--brand-ink);
  color: var(--white);
  box-shadow: var(--shadow-xl);
}
.contact-panel .section-kicker { color: #6fc3ef; }
.contact-panel h2 {
  max-width: 900px;
  margin: 0 auto 18px;
  font-size: clamp(2.25rem, 4.8vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -.05em;
  line-height: 1.04;
}
.contact-panel > p:not(.section-kicker) { max-width: 800px; margin: 0 auto 33px; color: #b8c7d2; font-size: 1.12rem; line-height: 1.65; }
.contact-actions { justify-content: center; }

.site-footer { padding: 66px 0 34px; border-top: 1px solid var(--slate-100); background: var(--slate-50); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .75fr .65fr; gap: 70px; }
.footer-logo { height: 39px; margin-bottom: 19px; }
.site-footer p { max-width: 420px; margin: 0; color: var(--slate-500); line-height: 1.68; }
.site-footer h3 { margin: 0 0 18px; color: var(--brand-blue); font-size: 11px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.site-footer .footer-grid a { display: block; margin: 0 0 12px; padding: 0; color: var(--slate-600); font-size: 13px; font-weight: 700; }
.site-footer .footer-grid a:hover { color: var(--brand-blue); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 49px;
  padding-top: 24px;
  border-top: 1px solid var(--slate-200);
  color: var(--slate-400);
  font-size: 9px;
  font-weight: 760;
  letter-spacing: .08em;
  line-height: 1.5;
  text-transform: uppercase;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(13, 32, 52, .66);
  backdrop-filter: blur(8px);
}
.modal-overlay.active { display: flex; }
.modal-card { width: min(100%, 650px); background: var(--white); box-shadow: var(--shadow-xl); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 25px 29px; background: var(--brand-ink); color: var(--white); }
.modal-header h2 { margin: 0; font-size: 1.25rem; font-weight: 800; }
.modal-close { color: var(--white); font-size: 28px; line-height: 1; }
.modal-intro { margin: 0; padding: 27px 33px 0; color: var(--slate-600); line-height: 1.65; }
.choice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 28px 33px 34px; }
.choice-card { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 28px; border: 1px solid var(--slate-200); color: var(--brand-ink); transition: border-color .2s, background .2s; }
.choice-card:hover { border-color: var(--brand-blue); background: var(--brand-light); }
.choice-card strong { color: var(--brand-blue); font-size: 1rem; font-weight: 850; }
.choice-card small { color: var(--slate-500); }
.legal-page { background: var(--slate-50); }
.legal-navigation { display: flex; align-items: center; gap: 24px; }
.legal-navigation a { color: var(--slate-600); font-size: 12px; font-weight: 780; letter-spacing: .04em; }
.legal-navigation a:hover,
.legal-navigation a[aria-current="page"] { color: var(--brand-blue); }
.legal-page-main { padding: 132px 0 82px; }
.legal-page-container { width: min(900px, calc(100% - 48px)); }
.legal-surface { padding: 48px 54px 54px; border: 1px solid var(--slate-200); background: var(--white); box-shadow: var(--shadow-sm); }
.legal-back-link { display: inline-flex; gap: 8px; margin-bottom: 30px; color: var(--brand-blue); font-size: 12px; font-weight: 800; }
.legal-content h1 { display: inline-block; margin: 0 0 22px; border-bottom: 2px solid var(--brand-blue); color: var(--brand-ink); font-size: 1.55rem; }
.legal-content h2 { margin: 31px 0 14px; color: var(--slate-800); font-size: 1.12rem; }
.legal-content p,
.legal-content li { color: var(--slate-600); line-height: 1.72; }
.legal-content ul { padding-left: 22px; }
.legal-content a { color: var(--brand-blue); font-weight: 700; }
.legal-content .legal-note { padding: 16px 18px; border-left: 3px solid var(--brand-blue); background: var(--brand-pale); }
.legal-updated { margin-top: 42px; color: var(--slate-400); font-size: 12px; }

.case-hero {
  position: relative;
  overflow: hidden;
  padding: 164px 0 84px;
  background: #f9fbfc;
}
.case-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(310px, .55fr);
  gap: 82px;
  align-items: end;
}
.back-link {
  display: inline-flex;
  gap: 9px;
  margin-bottom: 42px;
  color: var(--brand-blue);
  font-size: 12px;
  font-weight: 800;
}
.case-hero .eyebrow-text { margin-bottom: 17px; }
.case-hero h1 {
  max-width: 830px;
  margin: 0;
  color: var(--brand-ink);
  font-size: clamp(3rem, 5.2vw, 4.75rem);
  font-weight: 800;
  letter-spacing: -.057em;
  line-height: 1;
}
.case-hero-lead { margin: 0; color: var(--slate-600); font-size: 1.05rem; line-height: 1.72; }
.case-index-section { border-top: 1px solid var(--slate-200); border-bottom: 1px solid var(--slate-200); background: var(--white); }
.case-index { display: grid; grid-template-columns: 145px 1fr; gap: 28px; padding-top: 24px; padding-bottom: 24px; }
.case-index > p { margin: 5px 0 0; color: var(--brand-blue); font-size: 10px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.case-index > div { display: flex; flex-wrap: wrap; gap: 8px; }
.case-index a {
  display: inline-flex;
  gap: 8px;
  padding: 9px 11px;
  border: 1px solid var(--slate-200);
  color: var(--slate-600);
  font-size: 11px;
  font-weight: 750;
}
.case-index a > span:first-child { color: var(--brand-blue); }
.case-index a:hover { border-color: var(--brand-blue); color: var(--brand-ink); }
.case-list-section { padding: 42px 0 92px; background: var(--slate-50); }
.case-list { display: grid; gap: 27px; }
.case-study {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  scroll-margin-top: 90px;
  border: 1px solid var(--slate-200);
  border-top: 4px solid var(--brand-blue);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(13, 32, 52, .045);
}
.case-study > aside { padding: 30px 26px; border-right: 1px solid var(--slate-200); background: #f4f8fa; }
.case-number { display: block; color: var(--brand-blue); font-size: 2.6rem; font-weight: 850; letter-spacing: -.05em; line-height: 1; }
.case-study > aside > p {
  min-height: 58px;
  margin: 20px 0 34px;
  color: var(--brand-ink);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .08em;
  line-height: 1.5;
  text-transform: uppercase;
}
.case-study > aside > div {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-top: 1px solid var(--slate-200);
  color: var(--slate-600);
  font-size: 11px;
  line-height: 1.5;
}
.case-study > aside strong { color: var(--brand-blue); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.case-body { padding: 35px 39px 36px; }
.case-body .case-question { margin: 0 0 11px; color: var(--brand-blue); font-size: .9rem; font-weight: 780; line-height: 1.5; }
.case-body h2 {
  max-width: 830px;
  margin: 0 0 25px;
  color: var(--brand-ink);
  font-size: clamp(1.75rem, 2.75vw, 2.45rem);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.08;
}
.case-result {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 20px;
  padding: 21px 23px;
  border-left: 4px solid var(--brand-blue);
  background: var(--brand-light);
}
.case-result > span { color: var(--brand-blue); font-size: 10px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.case-result strong { color: var(--brand-ink); font-size: .98rem; line-height: 1.55; }
.case-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 31px; margin-top: 26px; }
.case-columns.three { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 25px; }
.case-columns h3 { margin: 0 0 8px; color: var(--brand-blue); font-size: .71rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.case-columns p { margin: 0; color: var(--slate-600); font-size: .88rem; line-height: 1.67; }
.case-tools {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 20px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--slate-200);
  color: var(--slate-600);
  font-size: 11px;
  line-height: 1.6;
}
.case-tools strong { color: var(--brand-blue); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.additional-experience {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 30px;
  align-items: start;
  margin-top: 27px;
  padding: 25px 27px;
  border: 1px solid var(--slate-200);
  background: var(--white);
}
.additional-experience > p { margin: 2px 0 0; color: var(--brand-blue); font-size: 10px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.additional-experience > div { display: flex; flex-wrap: wrap; gap: 8px; }
.additional-experience > div > span { padding: 8px 10px; border: 1px solid var(--slate-200); background: var(--slate-50); color: var(--slate-600); font-size: 11px; font-weight: 700; }

@media (max-width: 1100px) {
  .desktop-nav { display: none; }
  .mobile-actions { display: flex; }
  .hero-grid,
  .challenge-intro,
  .why-profile-grid,
  .experience-heading,
  .ai-grid,
  .approach-intro,
  .case-hero-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 42px; }
  .hero-diagnostic { max-width: 720px; }
  .challenge-intro,
  .why-profile-grid,
  .experience-heading,
  .ai-grid,
  .approach-intro,
  .case-hero-grid { gap: 28px; }
  .proof-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-strip > div:nth-child(2) { border-right: 0; }
  .proof-strip > div:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, .12); }
  .case-preview { grid-template-columns: 155px minmax(0, 1fr) 210px; }
  .ai-questions,
  .approach-track { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .approach-track article:nth-child(2) { border-right: 0; }
  .approach-track article:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, .17); }
  .approach-track article:nth-child(2)::after { content: none; }
  .portrait-frame { margin: 0 auto; }
  .case-study { grid-template-columns: 190px minmax(0, 1fr); }
  .case-columns.three { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 32px, 1180px); }
  .brand-logo { height: 36px; }
  .hero-section { min-height: auto; padding: 108px 0 62px; }
  .hero-copy h1 { font-size: clamp(2.45rem, 11vw, 3rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions,
  .contact-actions { align-items: stretch; flex-direction: column; }
  .primary-button,
  .secondary-button { width: 100%; }
  .text-button { justify-content: center; }
  .hero-diagnostic { display: none; }
  .section { padding: 72px 0; }
  .section-title { font-size: clamp(2rem, 9vw, 2.75rem); }
  .challenge-list { grid-template-columns: 1fr; }
  .challenge-list article,
  .challenge-list article:nth-child(even) { min-height: auto; padding: 23px 0; border-right: 0; }
  .why-steps article { grid-template-columns: 45px 1fr; gap: 17px; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip > div { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .12); }
  .proof-strip > div:last-child { border-bottom: 0; }
  .case-preview { grid-template-columns: 1fr; gap: 18px; padding: 26px 0; }
  .case-preview:hover { padding-right: 0; padding-left: 0; background: transparent; }
  .preview-role { grid-template-columns: 1fr auto; padding: 18px 0 0; border-top: 1px solid var(--slate-300); border-left: 0; }
  .ai-questions,
  .approach-track { grid-template-columns: 1fr; }
  .ai-questions article { min-height: auto; }
  .approach-track article { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .17); }
  .approach-track article:not(:last-child)::after { content: none; }
  .approach-track article:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, .17); }
  .approach-capabilities { grid-template-columns: 1fr; }
  .approach-capabilities p { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .17); }
  .approach-capabilities p:last-child { border-bottom: 0; }
  .contact-section { padding: 68px 0; }
  .contact-panel { padding: 37px 21px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .choice-grid { grid-template-columns: 1fr; }
  .modal-intro { padding-right: 24px; padding-left: 24px; }
  .choice-grid { padding-right: 24px; padding-left: 24px; }
  .legal-navigation { gap: 14px; }
  .legal-navigation a { font-size: 11px; }
  .legal-page-main { padding: 106px 0 54px; }
  .legal-page-container { width: calc(100% - 24px); }
  .legal-surface { padding: 31px 23px 37px; }
  .case-hero { padding: 126px 0 66px; }
  .case-hero h1 { font-size: clamp(2.55rem, 11vw, 3.15rem); }
  .back-link { margin-bottom: 31px; }
  .case-index { grid-template-columns: 1fr; gap: 11px; }
  .case-index > div { flex-direction: column; }
  .case-study { grid-template-columns: 1fr; }
  .case-study > aside { border-right: 0; border-bottom: 1px solid var(--slate-200); }
  .case-study > aside > p { min-height: auto; margin-bottom: 21px; }
  .case-body { padding: 27px 22px 29px; }
  .case-result,
  .case-columns,
  .case-columns.three,
  .case-tools { grid-template-columns: 1fr; gap: 11px; }
  .additional-experience { grid-template-columns: 1fr; gap: 13px; padding: 22px; }
}

@media (max-width: 420px) {
  .container { width: calc(100% - 24px); }
  .mobile-menu { padding-right: 16px; padding-left: 16px; }
  .hero-copy h1 { font-size: 2.38rem; }
  .interface-row { grid-template-columns: 1fr; gap: 5px; }
  .interface-row b { transform: rotate(90deg); transform-origin: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}