* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  background: #ffffff;
  color: #172033;
  line-height: 1.65;
}

.ai-container {
  width: min(1180px, 90%);
  margin: 0 auto;
}


/* NAVIGATION */

.ai-nav {
  position: sticky;
  top: 0;
  z-index: 1000;

  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #e5e7eb;
  backdrop-filter: blur(14px);
}

.nav-inner {
  min-height: 78px;

  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ai-logo {
  display: flex;
  align-items: center;
  gap: 12px;

  text-decoration: none;
  color: #111827;

  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.ai-logo img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.ai-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.ai-menu a {
  color: #475569;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.ai-menu a:hover {
  color: #1d4ed8;
}

.ai-menu .nav-contact {
  padding: 10px 18px;

  color: #ffffff;

  background: #111827;

  border-radius: 999px;
}


/* HERO */

.ai-hero {
  position: relative;
  overflow: hidden;

  padding: 105px 0 115px;

  background:
    radial-gradient(
      circle at 90% 20%,
      rgba(59, 130, 246, 0.14),
      transparent 30%
    ),
    linear-gradient(
      180deg,
      #f8fbff,
      #ffffff
    );
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 70px;
  align-items: center;
}

.eyebrow,
.section-label,
.demo-category,
.panel-label {
  display: inline-block;

  color: #2563eb;

  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.hero-copy h1 {
  max-width: 720px;

  margin-top: 16px;

  color: #111827;

  font-size: clamp(48px, 6vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.hero-copy h1 span {
  color: #2563eb;
}

.hero-description {
  max-width: 660px;

  margin-top: 26px;

  color: #64748b;

  font-size: 19px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;

  gap: 14px;

  margin-top: 34px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  padding: 14px 23px;

  border-radius: 8px;

  text-decoration: none;

  font-size: 14px;
  font-weight: 700;

  transition: 0.25s ease;
}

.btn-primary {
  background: #1d4ed8;
  color: #ffffff;
}

.btn-primary:hover {
  background: #1e40af;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #ffffff;
  color: #172033;

  border: 1px solid #cbd5e1;
}

.btn-secondary:hover {
  border-color: #1d4ed8;
  color: #1d4ed8;
}


/* HERO AI PANEL */

.hero-panel {
  padding: 34px;

  border: 1px solid #dbe4f0;
  border-radius: 22px;

  background: #111827;

  box-shadow:
    0 30px 70px rgba(15, 23, 42, 0.14);
}

.hero-panel .panel-label {
  color: #93c5fd;
}

.hero-panel h3 {
  margin: 14px 0 25px;

  color: #ffffff;

  font-size: 27px;
}

.ai-response {
  margin-top: 15px;
  padding: 20px;

  background: rgba(255, 255, 255, 0.06);

  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.ai-response strong {
  color: #bfdbfe;
}

.ai-response p {
  margin-top: 7px;

  color: #cbd5e1;

  font-size: 14px;
}


/* INTRO */

.intro-section {
  padding: 100px 0;

  background: #ffffff;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;

  gap: 85px;
}

.intro-grid h2 {
  margin-top: 10px;

  font-size: 46px;
  line-height: 1.1;

  color: #111827;
}

.intro-grid p {
  margin-bottom: 18px;

  color: #64748b;

  font-size: 18px;
}


/* COMMON SECTION HEADING */

.section-heading {
  max-width: 720px;
  margin-bottom: 50px;
}

.section-heading h2 {
  margin-top: 8px;

  color: #111827;

  font-size: 44px;
  line-height: 1.15;
}

.section-heading p {
  margin-top: 15px;

  color: #64748b;

  font-size: 17px;
}


/* SOLUTIONS */

.solutions-section {
  padding: 105px 0;

  background: #f7f9fc;
}

.solutions-grid {
  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: 22px;
}

.solution-card {
  min-height: 290px;

  padding: 30px;

  background: #ffffff;

  border: 1px solid #e2e8f0;
  border-radius: 16px;

  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.solution-card:hover {
  transform: translateY(-5px);

  box-shadow:
    0 18px 40px rgba(15, 23, 42, 0.08);
}

.card-number {
  display: block;

  margin-bottom: 48px;

  color: #2563eb;

  font-size: 13px;
  font-weight: 800;
}

.solution-card h3 {
  color: #111827;

  font-size: 21px;

  margin-bottom: 12px;
}

.solution-card p {
  color: #64748b;

  font-size: 15px;
}


/* DEMO EXAMPLES */

.examples-section {
  padding: 110px 0;

  background: #ffffff;
}

.demo-card {
  display: grid;

  grid-template-columns: 0.85fr 1.15fr;

  gap: 65px;
  align-items: center;

  margin-top: 75px;
}

.demo-card.reverse {
  grid-template-columns: 1.15fr 0.85fr;
}

.demo-card.reverse .demo-info {
  order: 2;
}

.demo-card.reverse .demo-screen {
  order: 1;
}

.demo-info h3 {
  margin-top: 8px;

  color: #111827;

  font-size: 34px;
}

.demo-info p {
  margin-top: 16px;

  color: #64748b;

  font-size: 17px;
}

.demo-screen {
  padding: 30px;

  background: #111827;

  border-radius: 18px;

  box-shadow:
    0 24px 60px rgba(15, 23, 42, 0.14);
}

.demo-question-label {
  display: block;

  color: #93c5fd;

  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.demo-question {
  margin-top: 10px;
  padding: 18px;

  color: #ffffff;

  background: #1e293b;

  border-radius: 9px;
}

.demo-answer {
  margin-top: 16px;
  padding: 20px;

  background: #ffffff;

  border-radius: 9px;
}

.demo-answer strong {
  color: #1d4ed8;
}

.demo-answer p {
  margin-top: 8px;

  color: #475569;

  font-size: 14px;
}


/* ARCHITECTURE */

.architecture-section {
  padding: 105px 0;

  background: #f7f9fc;
}

.architecture-flow {
  display: grid;

  grid-template-columns:
    1fr auto
    1fr auto
    1fr auto
    1fr;

  gap: 20px;

  align-items: center;
}

.architecture-item {
  padding: 25px;

  background: #ffffff;

  border: 1px solid #e2e8f0;
  border-radius: 14px;
}

.architecture-item span {
  color: #2563eb;

  font-size: 12px;
  font-weight: 800;
}

.architecture-item h4 {
  margin-top: 18px;

  color: #111827;

  font-size: 18px;
}

.architecture-item p {
  margin-top: 7px;

  color: #64748b;

  font-size: 13px;
}

.flow-line {
  width: 28px;
  height: 1px;

  background: #94a3b8;
}


/* CTA */

.cta-section {
  padding: 110px 0;

  background: #111827;

  text-align: center;
}

.cta-inner {
  max-width: 850px;
}

.cta-section .section-label {
  color: #93c5fd;
}

.cta-section h2 {
  margin-top: 12px;

  color: #ffffff;

  font-size: 48px;
  line-height: 1.1;
}

.cta-section p {
  max-width: 680px;

  margin:
    20px auto
    0;

  color: #cbd5e1;

  font-size: 18px;
}

.cta-section .hero-buttons {
  justify-content: center;
}


/* FOOTER */

.ai-footer {
  padding: 32px 0;

  background: #090e18;

  border-top:
    1px solid
    rgba(255,255,255,0.08);
}

.footer-inner {
  display: flex;

  justify-content: space-between;
  align-items: center;

  gap: 30px;
}

.footer-brand {
  display: flex;
  align-items: center;

  gap: 13px;
}

.footer-brand img {
  width: 45px;
}

.footer-brand strong {
  display: block;

  color: #ffffff;

  font-size: 13px;
}

.footer-brand span {
  display: block;

  margin-top: 2px;

  color: #94a3b8;

  font-size: 11px;
}

.ai-footer p {
  color: #64748b;

  font-size: 12px;
}


/* MOBILE */

@media screen and (max-width: 900px) {

  .ai-menu {
    display: none;
  }

  .hero-grid,
  .intro-grid,
  .demo-card,
  .demo-card.reverse {
    grid-template-columns: 1fr;
  }

  .demo-card.reverse .demo-info,
  .demo-card.reverse .demo-screen {
    order: initial;
  }

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

  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .flow-line {
    width: 1px;
    height: 24px;

    margin: 0 auto;
  }

}


@media screen and (max-width: 620px) {

  .ai-hero {
    padding: 75px 0 85px;
  }

  .hero-copy h1 {
    font-size: 46px;
  }

  .hero-description {
    font-size: 17px;
  }

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

  .intro-grid {
    gap: 35px;
  }

  .intro-grid h2,
  .section-heading h2 {
    font-size: 35px;
  }

  .demo-card {
    gap: 30px;
  }

  .cta-section h2 {
    font-size: 38px;
  }

  .footer-inner {
    flex-direction: column;

    text-align: center;
  }

}