:root {
  color-scheme: light;
  --color-background: #f4f7fb;
  --color-surface: #ffffff;
  --color-surface-alt: #edf2f8;
  --color-surface-dark: #122d3f;
  --color-primary: #295572;
  --color-primary-strong: #1d3f58;
  --color-accent: #ff944d;
  --color-text: #121824;
  --color-text-muted: #5b6878;
  --color-line: rgba(41, 85, 114, 0.12);
  --shadow-sm: 0 16px 32px rgba(29, 63, 88, 0.12);
  --shadow-lg: 0 28px 80px rgba(18, 45, 63, 0.18);
  --shadow-glow: 0 30px 120px rgba(41, 85, 114, 0.28);
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 40px;
  --max-width: 1200px;
  font-family: "Inter", "Segoe UI", "Roboto", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main { display: block; }

img { max-width: 100%; display: block; height: auto; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, transform 0.25s ease;
}

a:hover, a:focus-visible {
  color: var(--color-primary);
}

p { margin: 0 0 1rem; }

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3 {
  margin: 0 0 1rem;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: clamp(2.4rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); }

.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  text-align: left;
}

.section-heading__lead {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.btn--primary {
  background: linear-gradient(135deg, #3b7fa2 0%, #295572 55%, #1d3f58 100%);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover, .btn--primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  background: linear-gradient(135deg, #4b8fb6 0%, #32698c 55%, #244d68 100%);
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.55);
  color: #ffffff;
}

.btn--ghost {
  background: rgba(18, 45, 63, 0.06);
  border-color: rgba(29, 63, 88, 0.12);
  color: var(--color-primary);
}

.btn--ghost:hover, .btn--ghost:focus-visible {
  background: rgba(18, 45, 63, 0.12);
  border-color: rgba(29, 63, 88, 0.24);
  transform: translateY(-2px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--color-primary);
}

.link-arrow::after {
  content: "→";
  transition: transform 0.25s ease;
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

/* Header */
.shell-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(41, 85, 114, 0.12);
}

.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem clamp(1.5rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header__brand img {
  width: clamp(150px, 16vw, 186px);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.8vw, 2.2rem);
}

.nav__list a {
  font-weight: 600;
  font-size: 0.95rem;
  padding-bottom: 0.2rem;
  position: relative;
}

.nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-accent), #ffb780);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.nav__list a:hover::after,
.nav__list a:focus-visible::after,
.nav__list a.is-active::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(29, 63, 88, 0.18);
  background: rgba(255, 255, 255, 0.65);
  justify-content: center;
  flex-direction: column;
  gap: 0.32rem;
  cursor: pointer;
}

.nav-toggle__bar {
  width: 24px;
  height: 2px;
  background: var(--color-primary-strong);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Hero / Masthead */
.masthead {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 6rem) clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}

.masthead__lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

.masthead__bullets {
  margin: 1.5rem 0;
  display: grid;
  gap: 0.75rem;
  color: var(--color-text);
  font-size: 1rem;
}

.masthead__bullets li {
  position: relative;
  padding-left: 1.4rem;
}

.masthead__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.masthead__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.masthead__trust {
  margin-top: 2.5rem;
  background: rgba(18, 45, 63, 0.06);
  border-radius: var(--radius-lg);
  padding: 1rem 1.5rem;
  display: grid;
  gap: 0.5rem;
  font-size: 0.95rem;
}

.masthead__trust ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.masthead__trust li {
  background: rgba(29, 63, 88, 0.12);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-weight: 600;
  color: var(--color-primary-strong);
}

.masthead__visual {
  justify-self: center;
  filter: drop-shadow(var(--shadow-lg));
}

/* Confidence strip */
.confidence {
  padding: 0 clamp(1.5rem, 4vw, 3rem) clamp(3rem, 6vw, 4rem);
}

.confidence__strip {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
}

.confidence__strip article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.6rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.confidence__value {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
}

.confidence__label {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Solutions */
.solutions {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.solutions__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.pillar {
  display: grid;
  gap: 1.4rem;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.pillar__icon {
  background: linear-gradient(135deg, rgba(41, 85, 114, 0.08), rgba(255, 148, 77, 0.08));
  border-radius: var(--radius-lg);
  padding: 1rem;
}

.pillar__body ul {
  display: grid;
  gap: 0.55rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

/* Case highlight */
.case {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.case .section-heading {
  text-align: center;
}

.case__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.6rem, 3vw, 2.4rem);
}

.case__card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 4vw, 2.6rem);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
  display: grid;
  gap: 1.2rem;
  height: 100%;
}

.case__card header {
  display: grid;
  gap: 0.6rem;
}

.case__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.case__card p {
  color: var(--color-text-muted);
  font-size: 1.02rem;
}

.case__metrics {
  display: grid;
  gap: 1rem;
  margin: 0;
}

.case__metrics div {
  display: grid;
  gap: 0.25rem;
}

.case__metrics dt {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
}

.case__metrics dd {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Engagement */
.engagement {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--color-surface-alt);
}

.engagement__flow {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.engagement__flow article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.engagement__flow .step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, rgba(41, 85, 114, 0.1), rgba(255, 148, 77, 0.18));
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* Matrix */
.matrix {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.matrix__intro {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.matrix__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.matrix__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.matrix__grid ul {
  color: var(--color-text-muted);
  display: grid;
  gap: 0.6rem;
  font-size: 0.98rem;
}

/* CTA Immersion */
.immersion {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.immersion__card {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: clamp(2.4rem, 5vw, 3.1rem);
  box-shadow: var(--shadow-glow);
  border: 1px solid rgba(18, 45, 63, 0.1);
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.8rem);
}

.immersion__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Footer */
.shell-footer {
  background: #0c1c2a;
  color: #f4f7fb;
  padding: clamp(2.5rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 3rem);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto 2.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.6rem;
}

.footer__title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.footer__contact ul {
  display: grid;
  gap: 0.4rem;
}

.footer__contact a {
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.5);
}

.footer__contact a:hover,
.footer__contact a:focus-visible {
  color: var(--color-accent);
}

.footer__legal {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

/* Services - catalog */
.catalog {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--color-surface-alt);
}

.catalog__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}

.catalog__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
  display: grid;
  gap: 1rem;
}

.catalog__grid ul {
  display: grid;
  gap: 0.55rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

.catalog__foot {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 600;
}

.playbook {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.playbook__intro {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.playbook__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem;
}

.playbook__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.evidence {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--color-surface-alt);
}

.evidence__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
}

.evidence__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.9rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.evidence__value {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

/* Contact */
.touchpoints {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  background: var(--color-surface-alt);
}

.touchpoints__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem;
}

.touchpoints__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

.prep {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.prep__card {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: clamp(2.2rem, 5vw, 3rem);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
  display: grid;
  gap: 1.8rem;
}

.prep__copy ul {
  margin-top: 1rem;
  display: grid;
  gap: 0.65rem;
  color: var(--color-text-muted);
}

.prep__note {
  background: rgba(41, 85, 114, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
  color: var(--color-primary-strong);
  font-weight: 600;
}

.faq {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.faq__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem;
}

.faq__grid article {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(18, 45, 63, 0.08);
}

/* Utilities */
.masthead--services .masthead__content,
.masthead--contact .masthead__content {
  max-width: 560px;
}

.masthead--services, .masthead--contact {
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
}

/* Navigation responsive */
@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .header__nav {
    position: absolute;
    top: calc(100% + 12px);
    right: clamp(1.5rem, 4vw, 3rem);
    width: min(320px, 90vw);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 1.6rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.4rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .nav__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

@media (max-width: 720px) {
  .masthead__trust ul { gap: 0.5rem; }
  .confidence__strip { grid-template-columns: 1fr; }
  .solutions__grid, .matrix__grid, .catalog__grid { grid-template-columns: 1fr; }
  .engagement__flow, .playbook__grid, .touchpoints__grid, .faq__grid { grid-template-columns: 1fr; }
  .immersion__actions { flex-direction: column; align-items: stretch; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation-duration: 0.01ms !important; }
}
