:root {
  --brand-blue: #2563eb;
  --brand-blue-light: #60a5fa;
  --accent-orange: #ff6b35;
  --text-charcoal: #1e293b;
  --light-surface: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --white: #ffffff;
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-lift: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --section-x: clamp(1.5rem, 4vw, 3rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-top: 5rem;
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 16%, #f8fafc 100%);
  color: var(--text-charcoal);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3 {
  font-family: "Poppins", "Inter", system-ui, sans-serif;
  color: var(--slate-900);
  line-height: 1.15;
}

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

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

.container {
  width: min(1120px, calc(100% - (var(--section-x) * 2)));
  margin: 0 auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  background: var(--brand-blue);
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.2);
  transition: transform 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  background: #1d4ed8;
}

.button.secondary-button {
  background: transparent;
  color: var(--brand-blue);
  border: 1px solid rgba(37, 99, 235, 0.2);
  box-shadow: none;
}

.button.secondary-button:hover {
  background: rgba(37, 99, 235, 0.06);
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 auto;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: var(--white);
  box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -2px rgba(15, 23, 42, 0.1);
}

.nav-shell {
  display: flex;
  height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  color: var(--brand-blue);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a,
.mobile-menu a {
  color: var(--text-charcoal);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.mobile-menu a:hover {
  color: var(--brand-blue);
}

.mobile-menu a.button {
  width: fit-content;
  margin-top: 0.25rem;
  color: var(--white);
}

.mobile-menu a.button:hover {
  color: var(--white);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  border-radius: 0.375rem;
  background: transparent;
  color: var(--text-charcoal);
  cursor: pointer;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--slate-200);
  background: var(--white);
}

.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.mobile-menu.is-open {
  display: block;
  animation: mobileMenuIn 0.2s ease both;
}

.hero {
  position: relative;
  padding: 4rem 0 2.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: min(32rem, 60vw);
  height: min(32rem, 60vw);
  border-radius: 999px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.28), rgba(96, 165, 250, 0));
  pointer-events: none;
}

.hero-card,
.section-card,
.article-body {
  position: relative;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 1.75rem;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-lift);
}

.hero-card {
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3.25rem);
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -6rem -6rem auto;
  width: 16rem;
  height: 16rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), rgba(37, 99, 235, 0));
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1rem;
  color: var(--brand-blue);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 16ch;
  font-size: clamp(2.4rem, 5vw, 4.3rem);
}

.hero p {
  max-width: 50rem;
  margin-top: 1.1rem;
  color: var(--slate-600);
  font-size: clamp(1rem, 1.8vw, 1.125rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

.page-shell {
  padding-bottom: 4rem;
}

.section-card {
  padding: clamp(1.5rem, 3vw, 2.2rem);
}

.section-card + .section-card {
  margin-top: 1.5rem;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.6rem;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-heading p {
  max-width: 42rem;
  color: var(--slate-600);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.6rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 1.35rem;
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.9), rgba(255, 255, 255, 1));
}

.post-card h2 {
  font-size: 1.55rem;
}

.post-card p {
  color: var(--slate-600);
}

.meta-row,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  color: var(--slate-500);
  font-size: 0.95rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--brand-blue);
  font-size: 0.85rem;
  font-weight: 700;
}

.breadcrumb {
  padding-top: 2rem;
  color: var(--slate-500);
  font-size: 0.95rem;
}

.breadcrumb a {
  color: var(--brand-blue);
}

.article-layout {
  padding-top: 1.5rem;
}

.article-body {
  padding: clamp(1.7rem, 4vw, 3rem);
}

.article-body > p:first-of-type {
  margin-top: 0;
}

.article-body h2 {
  margin-top: 2.5rem;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
}

.article-body h2:first-of-type {
  margin-top: 0;
}

.article-body h3 {
  margin-top: 1.5rem;
  font-size: 1.2rem;
}

.article-body p {
  margin-top: 1rem;
  color: var(--slate-700);
}

.article-body ul,
.article-body ol {
  margin: 1rem 0 0 1.25rem;
  padding: 0;
  color: var(--slate-700);
}

.article-body li + li {
  margin-top: 0.75rem;
}

.article-body strong {
  color: var(--slate-900);
}

.callout {
  margin-top: 2rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 1.25rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(96, 165, 250, 0.04));
}

.callout a,
.article-body a,
.related-links a {
  color: var(--brand-blue);
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  font-weight: 700;
}

.site-footer {
  padding: 3.5rem 0;
  background: var(--text-charcoal);
  color: #e2e8f0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.75fr 1fr 0.8fr 0.7fr;
  gap: 2.5rem;
}

.footer-logo {
  color: var(--brand-blue-light);
  font-size: 1.5rem;
  font-weight: 800;
}

.footer-about {
  max-width: 24rem;
  margin-top: 0.75rem;
  color: var(--slate-300);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-address {
  margin-top: 0.85rem;
  color: var(--slate-200);
  font-size: 0.875rem;
  line-height: 1.7;
  font-weight: 600;
}

.footer-title {
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-service-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-links a,
.footer-service-links a,
.career-links a {
  color: var(--slate-300);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.footer-links a:hover,
.footer-service-links a:hover,
.career-links a:hover {
  color: var(--brand-blue-light);
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.125rem;
  height: 2.125rem;
  border-radius: 999px;
  background: var(--slate-700);
  color: var(--slate-100);
  transition: background 0.2s ease;
}

.social-links a:hover {
  background: var(--brand-blue);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  color: var(--slate-400);
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  gap: 1.25rem;
}

.footer-legal a:hover {
  color: var(--white);
}

@keyframes mobileMenuIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 900px) {
  .post-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 4.5rem;
  }

  .nav-shell {
    height: 4.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 3rem;
  }

  .button,
  .button.secondary-button,
  .mobile-menu a.button {
    width: 100%;
  }

  .article-body,
  .post-card,
  .section-card,
  .hero-card {
    border-radius: 1.35rem;
  }

  .footer-service-links,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}