:root {
  --background: #0f172a;
  --surface: #111827;
  --surface-alt: #f8fafc;
  --text-primary: #0b1120;
  --text-secondary: #475569;
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.12);
  --accent-strong: #4f46e5;
  --border: rgba(15, 23, 42, 0.08);
  --white: #ffffff;
  font-size: 16px;
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
  background: #f5f7fb;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 18px;
}

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

.container {
  width: min(1100px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
}

.branding {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.branding img {
  border-radius: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: var(--white);
  font-weight: 800;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hero {
  position: relative;
  padding: 6rem 0;
  overflow: hidden;
  color: var(--white);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(circle at top left, #6366f1, transparent 45%),
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.4), transparent 55%),
    var(--background);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 5% 15%;
  border-radius: 48px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(30px);
  z-index: -1;
}

.hero__content {
  display: grid;
  gap: 4rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.hero__copy h1 {
  font-size: clamp(2.8rem, 4vw, 3.6rem);
  line-height: 1.1;
  margin-bottom: 1rem;
  color: var(--white);
}

.hero__lead {
  color: rgba(248, 250, 252, 0.78);
  max-width: 520px;
}

.hero__eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(248, 250, 252, 0.65);
  margin-bottom: 1.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2.5rem 0 3rem;
}

.hero__stats {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  color: rgba(248, 250, 252, 0.75);
}

.stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
}

.hero__media {
  display: grid;
  gap: 1.5rem;
}

.hero__card {
  padding: 2rem;
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.8);
}

.hero__card h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

.hero__card ul {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.75rem;
  color: rgba(248, 250, 252, 0.75);
}

.hero__card li span {
  color: #22d3ee;
  margin-right: 0.75rem;
}

.section {
  padding: 6rem 0;
}

.section--light {
  background: var(--surface-alt);
}

.section--dark {
  background: var(--surface);
  color: rgba(226, 232, 240, 0.9);
}

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__lead {
  max-width: 640px;
  margin: 0.75rem auto 0;
  color: var(--text-secondary);
}

.section--dark .section__lead {
  color: rgba(226, 232, 240, 0.7);
}

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.85rem 1.8rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid transparent;
}

.button--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--white);
  box-shadow: 0 10px 20px -10px rgba(79, 70, 229, 0.7);
}

.button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -15px rgba(79, 70, 229, 0.55);
}

.button--ghost {
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--accent);
  background: rgba(99, 102, 241, 0.08);
}

.button--ghost:hover {
  border-color: rgba(99, 102, 241, 0.6);
}

.button--light {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.2);
}

.service-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.service-card {
  background: var(--white);
  border-radius: 24px;
  padding: 2.2rem;
  border: 1px solid var(--border);
  box-shadow: 0 15px 35px -20px rgba(15, 23, 42, 0.3);
  display: grid;
  gap: 1rem;
}

.service-icon {
  font-size: 2rem;
}

.service-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-secondary);
}

.approach {
  display: grid;
  gap: 4rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.approach__copy p {
  color: var(--text-secondary);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.pill-list span {
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-strong);
  font-weight: 600;
  font-size: 0.9rem;
}

.timeline {
  border-left: 1px solid rgba(148, 163, 184, 0.3);
  padding-left: 2rem;
  display: grid;
  gap: 2.5rem;
}

.timeline__item {
  position: relative;
}

.timeline__marker {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 3px solid var(--white);
  background: var(--accent);
  position: absolute;
  left: -2.6rem;
  top: 0.35rem;
}

.timeline h3 {
  margin: 0 0 0.5rem;
}

.timeline p {
  margin: 0;
  color: var(--text-secondary);
}

.section--dark .timeline p,
.section--dark .approach__copy p {
  color: rgba(226, 232, 240, 0.7);
}

.insights {
  display: grid;
  gap: 4rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.insight-cards {
  display: grid;
  gap: 1.5rem;
}

.insight-cards article {
  padding: 1.8rem;
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(148, 163, 184, 0.3);
  backdrop-filter: blur(6px);
}

.insight__tag {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: rgba(94, 234, 212, 0.85);
}

.testimonials {
  position: relative;
}

.testimonial-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.testimonial-grid figure {
  background: var(--white);
  border-radius: 24px;
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px -20px rgba(15, 23, 42, 0.45);
  display: grid;
  gap: 1.5rem;
}

.testimonial-grid blockquote {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.testimonial-grid figcaption {
  display: grid;
  gap: 0.2rem;
  color: var(--text-secondary);
}

.contact {
  background: linear-gradient(120deg, rgba(79, 70, 229, 0.12), transparent),
  var(--surface-alt);
}

.contact__content {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.contact__copy p {
  color: var(--text-secondary);
}

.contact__details p {
  margin: 0.2rem 0;
}

.contact__form {
  display: grid;
  gap: 1.25rem;
  background: var(--white);
  padding: 2.5rem;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 45px -25px rgba(15, 23, 42, 0.35);
}

.contact__form label {
  display: grid;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact__form input,
.contact__form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  font: inherit;
  color: var(--text-primary);
  background: rgba(248, 250, 252, 0.9);
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.contact__form input:focus,
.contact__form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.site-footer {
  background: var(--surface);
  color: rgba(226, 232, 240, 0.8);
  padding: 3rem 0;
}

.white-brand-name {
  color: var(--surface-alt);
}

.footer__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: center;
}

.footer__links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

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

.footer__legal {
  text-align: right;
  font-size: 0.85rem;
  color: rgba(226, 232, 240, 0.7);
}

.footer__tagline {
  color: rgba(226, 232, 240, 0.7);
  max-width: 320px;
}

@media (max-width: 820px) {
  .site-nav {
    position: absolute;
    top: 72px;
    right: 5vw;
    padding: 1.5rem;
    border-radius: 18px;
    background: rgba(248, 250, 252, 0.95);
    box-shadow: 0 20px 40px -25px rgba(15, 23, 42, 0.35);
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    border: 1px solid var(--border);
    transform-origin: top right;
    transform: scale(0.8);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.is-open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .footer__legal {
    text-align: center;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background: #020617;
    color: rgba(226, 232, 240, 0.9);
  }

  .section--light {
    background: rgba(15, 23, 42, 0.65);
  }

  .service-card,
  .testimonial-grid figure {
    background: rgba(15, 23, 42, 0.85);
    border-color: rgba(148, 163, 184, 0.25);
    color: rgba(226, 232, 240, 0.92);
  }

  .service-card p,
  .service-card ul,
  /*.contact__copy p,*/
  .timeline p,
  .section__lead,
  .testimonial-grid figcaption,
  .testimonial-grid blockquote {
    color: rgba(226, 232, 240, 0.75);
  }

  .contact__form input,
  .contact__form textarea {
    background: rgba(15, 23, 42, 0.9);
    border-color: rgba(148, 163, 184, 0.3);
    color: rgba(226, 232, 240, 0.9);
  }


  .site-nav {
    /*background: rgba(15, 23, 42, 0.9);*/
    color: rgba(3, 15, 30, 0.8);
  }

  .site-nav a:hover,
  .footer__links a:hover {
    color: var(--accent);
  }
}