:root {
  --color-primary: #05445e;
  --color-secondary: #f7dbc1;
  --color-bg: #f9f8f5;
  --color-surface: #ffffff;
  --color-surface-alt: #eef5f6;
  --color-text-main: #1a1a1a;
  --color-text-muted: #666666;
  --color-border: #e2e1de;
  --color-shadow: rgba(5, 68, 94, 0.08);
  --color-primary-soft: rgba(5, 68, 94, 0.08);

  --text-xs: 0.8125rem;
  --text-sm: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.5625rem;
  --text-xl: 2rem;
  --text-2xl: 2.75rem;
  --text-3xl: clamp(3rem, 6vw, 4.25rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  --radius-sm: 0.25rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 16px 40px var(--color-shadow);

  --container: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Aptos, Inter, "Segoe UI", sans-serif;
  color: var(--color-text-main);
  background:
    radial-gradient(circle at top left, rgba(247, 219, 193, 0.65), transparent 30%),
    linear-gradient(180deg, #fcfbf8 0%, var(--color-bg) 35%, #f6f5f1 100%);
  line-height: 1.6;
}

section[id],
main[id] {
  scroll-margin-top: 6.5rem;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(5, 68, 94, 0.28);
  outline-offset: 3px;
}

p,
h1,
h2,
h3,
ul,
dl,
dd {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 30;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #ffffff;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.section {
  padding: var(--space-8) 0;
}

.section-accent {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(238, 245, 246, 0.8));
}

.eyebrow,
.mini-label {
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading {
  display: grid;
  gap: var(--space-3);
  max-width: 48rem;
  margin-bottom: var(--space-6);
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.section-heading p {
  color: var(--color-text-muted);
  font-size: var(--text-md);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 3rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-primary);
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.button-secondary {
  background: transparent;
  color: var(--color-primary);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(5, 68, 94, 0.05);
}

.button-large {
  min-height: 3.5rem;
  padding-inline: 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(226, 225, 222, 0.8);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
}

.brand-photo {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(5, 68, 94, 0.12);
}

.brand-copy {
  display: grid;
  gap: 0.125rem;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.brand-copy strong {
  color: var(--color-text-main);
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: 0.95rem;
}

.site-nav a:not(.button) {
  color: var(--color-text-muted);
}

.site-nav a:not(.button):hover,
.site-nav a:not(.button):focus-visible {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
  padding: 0.625rem;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  margin: 0.22rem 0;
}

.hero {
  padding-top: var(--space-7);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  gap: var(--space-6);
  align-items: center;
}

.hero-copy {
  display: grid;
  gap: var(--space-4);
}

.hero h1 {
  font-size: var(--text-3xl);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 13ch;
}

.hero-lead {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  max-width: 42rem;
}

.hero-support {
  max-width: 40rem;
  color: var(--color-text-muted);
  font-size: var(--text-md);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-2);
}

.hero-tagline {
  color: var(--color-primary);
  font-weight: 600;
}

.system-panel {
  position: relative;
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.75)),
    linear-gradient(135deg, rgba(5, 68, 94, 0.07), rgba(247, 219, 193, 0.35));
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.system-card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(5, 68, 94, 0.08);
}

.system-card h2 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  line-height: 1.12;
}

.check-list {
  display: grid;
  gap: var(--space-2);
}

.check-list li,
.detail-list li {
  position: relative;
  padding-left: 1.5rem;
}

.check-list li::before,
.detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-primary);
}

.profile-chip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid rgba(5, 68, 94, 0.08);
  border-radius: var(--radius-md);
  background: rgba(247, 219, 193, 0.35);
}

.profile-chip img {
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 1rem;
  object-fit: cover;
}

.credibility-strip {
  padding: 0 0 var(--space-5);
}

.credibility-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border);
}

.credibility-item {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.88);
}

.credibility-item strong {
  color: var(--color-primary);
  font-size: 1.15rem;
}

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

.problem-solution-grid,
.case-study-grid,
.cta-shell {
  display: grid;
  gap: var(--space-5);
}

.problem-solution-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.panel h3 {
  font-size: var(--text-lg);
}

.panel-warm {
  background: linear-gradient(180deg, rgba(247, 219, 193, 0.5), rgba(255, 255, 255, 0.78));
}

.panel-cool {
  background: linear-gradient(180deg, rgba(5, 68, 94, 0.06), rgba(255, 255, 255, 0.82));
}

.detail-list {
  display: grid;
  gap: var(--space-3);
  color: var(--color-text-muted);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.service-card {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(5, 68, 94, 0.08);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.service-card-secondary {
  background: linear-gradient(180deg, rgba(247, 219, 193, 0.42), rgba(255, 255, 255, 0.92));
}

.service-card h3 {
  font-size: var(--text-lg);
}

.service-card dl {
  display: grid;
  gap: 0.65rem;
}

.service-card dt {
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.35rem;
}

.service-card dd {
  color: var(--color-text-muted);
}

.case-study {
  background:
    radial-gradient(circle at right top, rgba(5, 68, 94, 0.06), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.8));
}

.case-study-grid {
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.92fr);
  align-items: start;
}

.case-copy {
  display: grid;
  gap: var(--space-5);
}

.result-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 1px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border);
}

.result-band article {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.92);
}

.result-band strong {
  color: var(--color-primary);
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  white-space: nowrap;
}

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

.result-band article:last-child {
  min-width: 0;
}

.case-sections {
  display: grid;
  gap: var(--space-4);
}

.case-block {
  display: grid;
  gap: var(--space-2);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(226, 225, 222, 0.85);
}

.case-block h3,
.comparison-card p:first-child {
  font-size: 1.15rem;
}

.case-block p,
.comparison-card p:last-child,
.workflow-figure figcaption,
.contact-card a,
.footer-shell p,
.footer-links a {
  color: var(--color-text-muted);
}

.before-after {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.comparison-card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid rgba(5, 68, 94, 0.1);
  background: rgba(255, 255, 255, 0.72);
}

.inline-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: #ffffff;
}

.inline-cta p {
  max-width: 38rem;
}

.inline-cta .button {
  border-color: #ffffff;
  color: #ffffff;
}

.inline-cta .button:hover,
.inline-cta .button:focus-visible {
  background: #ffffff;
  color: var(--color-primary);
}

.workflow-figure {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(5, 68, 94, 0.08);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 6.5rem;
}

.workflow-figure img {
  width: 100%;
  height: auto;
  border-radius: 1rem;
  border: 1px solid rgba(226, 225, 222, 0.8);
}

.methodology-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
}

.step-card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid rgba(5, 68, 94, 0.1);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.85);
}

.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 700;
}

.step-card h3 {
  font-size: 1.15rem;
}

.step-card p {
  color: var(--color-text-muted);
}

.cta-section {
  padding-top: var(--space-7);
}

.cta-shell {
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 24rem);
  align-items: start;
  padding: var(--space-6);
  border-radius: 2rem;
  background:
    linear-gradient(135deg, rgba(5, 68, 94, 0.96), rgba(8, 88, 120, 0.9)),
    linear-gradient(180deg, rgba(247, 219, 193, 0.12), transparent);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.cta-copy {
  display: grid;
  gap: var(--space-4);
}

.cta-copy .eyebrow,
.cta-copy .mini-label {
  color: rgba(255, 255, 255, 0.92);
}

.cta-copy h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.cta-copy p {
  max-width: 40rem;
}

.what-next {
  color: rgba(255, 255, 255, 0.92);
}

.cta-actions {
  display: grid;
  gap: var(--space-3);
}

.cta-actions .button-primary {
  background: #ffffff;
  color: var(--color-primary);
  border-color: #ffffff;
}

.cta-actions .button-secondary {
  border-color: rgba(255, 255, 255, 0.55);
  color: #ffffff;
}

.cta-actions .button-secondary:hover,
.cta-actions .button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.1);
}

.contact-card {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.16);
}

.contact-card .mini-label {
  color: rgba(255, 255, 255, 0.82);
}

.contact-card a {
  color: #ffffff;
  opacity: 1;
  font-weight: 600;
}

.site-footer {
  padding: var(--space-5) 0 var(--space-6);
}

.footer-shell {
  display: grid;
  grid-template-columns: 1.2fr auto auto;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid rgba(5, 68, 94, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-photo {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  object-fit: cover;
}

.footer-shell strong {
  display: inline-block;
  margin-bottom: var(--space-2);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-links a {
  color: var(--color-primary);
  font-weight: 600;
}

.reveal {
  animation: fade-up 700ms ease both;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 72rem) {
  .credibility-grid,
  .methodology-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-study-grid,
  .hero-grid,
  .cta-shell {
    grid-template-columns: 1fr;
  }

  .workflow-figure {
    position: static;
  }
}

@media (max-width: 56rem) {
  .site-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-cta {
    width: 100%;
  }

  .problem-solution-grid,
  .services-grid,
  .before-after,
  .footer-shell {
    grid-template-columns: 1fr;
  }

  .credibility-grid,
  .result-band,
  .methodology-steps {
    grid-template-columns: 1fr;
  }

  .cta-shell {
    padding: var(--space-5);
  }
}

@media (max-width: 40rem) {
  .section {
    padding: var(--space-7) 0;
  }

  .hero {
    padding-top: var(--space-6);
  }

  .hero-actions,
  .inline-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .button-large {
    width: 100%;
  }

  .system-panel,
  .panel,
  .service-card,
  .step-card,
  .cta-shell {
    padding: var(--space-4);
  }
}