@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Serif:wght@500;600&display=swap");

:root {
  --navy-900: #0c1f3f;
  --navy-800: #132c56;
  --slate-700: #3f4b5f;
  --slate-500: #6a7587;
  --surface-100: #f5f7fb;
  --white: #ffffff;
  --divider: #d9e0ea;
  --shadow: 0 16px 38px rgba(12, 31, 63, 0.1);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--navy-900);
  background:
    radial-gradient(circle at 90% 8%, rgba(19, 44, 86, 0.09), transparent 48%),
    radial-gradient(circle at 0% 92%, rgba(63, 75, 95, 0.08), transparent 52%),
    linear-gradient(180deg, #ffffff 0%, #f7f9fd 100%);
  line-height: 1.6;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--divider);
  backdrop-filter: blur(8px);
}

.header-content {
  min-height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.22em;
  font-size: 0.92rem;
  color: var(--navy-900);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  text-decoration: none;
  color: var(--slate-700);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 180ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--navy-800);
}

.hero {
  padding: 120px 0 82px;
}

.hero-content {
  max-width: 860px;
  animation: riseIn 700ms ease-out both;
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-500);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "IBM Plex Serif", "Times New Roman", serif;
  letter-spacing: 0.01em;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2rem, 5vw, 3.35rem);
  line-height: 1.16;
  color: var(--navy-900);
}

.lead {
  margin: 24px 0 0;
  max-width: 760px;
  font-size: clamp(1.02rem, 2vw, 1.16rem);
  color: var(--slate-700);
}

.hero-note {
  margin: 18px 0 0;
  color: var(--slate-500);
  font-size: 0.95rem;
}

.identity,
.portfolio,
.compliance,
.about {
  padding: 64px 0;
}

h2 {
  font-size: clamp(1.55rem, 2.7vw, 2rem);
}

.section-intro {
  margin: 12px 0 34px;
  max-width: 690px;
  color: var(--slate-700);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.portfolio-card {
  background-color: var(--white);
  border: 1px solid rgba(63, 75, 95, 0.14);
  border-radius: 14px;
  padding: 24px 22px;
  box-shadow: var(--shadow);
  animation: riseIn 620ms ease-out both;
}

.portfolio-card:nth-child(2) {
  animation-delay: 110ms;
}

.portfolio-card:nth-child(3) {
  animation-delay: 220ms;
}

.identity-grid {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.identity-item {
  margin: 0;
  padding: 18px;
  border: 1px solid rgba(63, 75, 95, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 20px rgba(12, 31, 63, 0.06);
}

.identity-item dt {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-500);
  font-weight: 600;
}

.identity-item dd {
  margin: 10px 0 0;
  color: var(--navy-900);
  font-weight: 500;
}

.compliance-content {
  max-width: 1060px;
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.compliance-card {
  background-color: var(--white);
  border: 1px solid rgba(63, 75, 95, 0.14);
  border-radius: 14px;
  padding: 22px 20px;
  box-shadow: var(--shadow);
}

.compliance-card h3 {
  font-size: 1.08rem;
  color: var(--navy-800);
}

.compliance-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--slate-700);
}

.compliance-card li + li {
  margin-top: 8px;
}

.portfolio-card h3 {
  font-size: 1.2rem;
  color: var(--navy-800);
}

.portfolio-card p {
  margin: 12px 0 0;
  color: var(--slate-700);
}

.about-content {
  max-width: 850px;
}

.about-content p {
  margin: 16px 0 0;
  color: var(--slate-700);
}

.site-footer {
  padding: 52px 0 64px;
  border-top: 1px solid var(--divider);
  background-color: rgba(255, 255, 255, 0.82);
}

.footer-content p {
  margin: 12px 0;
  color: var(--slate-700);
}

.footer-content a {
  color: var(--navy-800);
  text-decoration: none;
}

.footer-content a:hover,
.footer-content a:focus-visible {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .hero {
    padding-top: 98px;
  }

  .identity-grid,
  .compliance-grid,
  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-content {
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding: 14px 0;
  }

  .main-nav {
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero,
  .identity,
  .portfolio,
  .compliance,
  .about,
  .site-footer {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .identity-grid,
  .compliance-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-content,
  .portfolio-card {
    animation: none;
  }

  .main-nav a {
    transition: none;
  }
}