:root {
  --color-bg-primary: #111827;
  --color-bg-secondary: #1f2937;
  --color-text-primary: #f9fafb;
  --color-text-secondary: #9ca3af;
  --color-accent: #34d399;
  --color-accent-secondary: #60a5fa;
  --color-border: #374151;
  --radius-large: 28px;
  --radius-medium: 18px;
  --radius-small: 12px;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-glow: 0 0 24px rgba(52, 211, 153, 0.35);
}

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

html {
  font-size: 16px;
}

body {
  margin: 0;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1320px, 94vw);
  margin-inline: auto;
}

.hero {
  position: relative;
  overflow: hidden;
  padding-block: 200px 160px;
  background-color: var(--color-bg-primary);
  min-height: 110vh;
  display: flex;
  align-items: center;
}

.hero__aurora {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 20%, rgba(96, 165, 250, 0.25), transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(52, 211, 153, 0.35), transparent 60%),
    radial-gradient(ellipse at 40% 80%, rgba(96, 165, 250, 0.2), transparent 60%);
  filter: blur(40px);
  transform: scale(1.2);
  animation: auroraShift 14s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes auroraShift {
  0% {
    transform: scale(1.2) translate(-10px, -6px);
  }
  50% {
    transform: scale(1.25) translate(8px, 10px);
  }
  100% {
    transform: scale(1.22) translate(-4px, 6px);
  }
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 72px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: center;
}

.hero__text {
  grid-column: span 7;
}

.hero h1 {
  font-size: clamp(3.1rem, 5.8vw, 5.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

.hero__subhead {
  color: var(--color-text-secondary);
  font-size: 1.3rem;
  max-width: 40rem;
  margin: 0 0 40px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.cta-button:hover,
.cta-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.12), 0 18px 30px -18px rgba(52, 211, 153, 0.6);
}

.hero__social-proof {
  margin-top: 32px;
}

.hero__social-proof-label {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 12px;
}

.hero__logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  color: rgba(249, 250, 251, 0.68);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__logo {
  opacity: 0.7;
  transition: opacity 220ms ease;
}

.hero__logo:hover {
  opacity: 1;
}

.hero__visual {
  grid-column: 9 / -1;
  display: flex;
  justify-content: center;
}

.hero__visual-image {
  width: min(420px, 100%);
  height: auto;
  display: block;
  filter: drop-shadow(0 36px 80px rgba(52, 211, 153, 0.4));
}

.section {
  padding-block: 120px;
}

.section h2 {
  font-size: clamp(2.2rem, 4vw, 3rem);
  text-align: center;
  margin: 0 0 48px;
}

.section--problem {
  background: var(--color-bg-primary);
}

.problem__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 32px 28px;
  display: grid;
  gap: 18px;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: var(--color-accent);
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.4);
}


.card p {
  color: var(--color-text-secondary);
  margin: 0;
  font-size: 1.05rem;
}

.section--solution {
  background: var(--color-bg-primary);
}

.solution__layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.solution__text {
  grid-column: span 6;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

.solution__text h2 {
  text-align: left;
  margin-bottom: 24px;
  color: var(--color-text-primary);
}

.solution__visual {
  grid-column: 8 / -1;
  display: flex;
  justify-content: center;
}

.neural-core {
  position: relative;
  width: clamp(220px, 24vw, 320px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(52, 211, 153, 0.2), rgba(17, 24, 39, 0.1));
  display: grid;
  place-items: center;
  overflow: hidden;
}

.neural-core__layer {
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(52, 211, 153, 0.6);
  animation: neuralPulse 5s ease-in-out infinite;
}

.neural-core__layer:nth-child(2) {
  width: 85%;
  animation-delay: 0.7s;
}

.neural-core__layer:nth-child(3) {
  width: 45%;
  animation-delay: 1.3s;
}

@keyframes neuralPulse {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(0.92);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.08);
  }
}

.section--how {
  background: var(--color-bg-secondary);
}

.steps {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  position: relative;
}

@media (min-width: 768px) {
  .steps::before {
    content: '';
    position: absolute;
    top: 46px;
    left: 8%;
    right: 8%;
    border-top: 1px dashed rgba(156, 163, 175, 0.4);
    z-index: 0;
  }
}

.step {
  background: rgba(17, 24, 39, 0.8);
  border-radius: var(--radius-medium);
  border: 1px solid var(--color-border);
  padding: 32px;
  display: grid;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.step__number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

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

.section--use-cases {
  background: var(--color-bg-primary);
}

.tabs {
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: 28px;
}

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.tabs__tab {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}

.tabs__tab.is-active {
  background: rgba(52, 211, 153, 0.12);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.4);
}

.tabs__tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.3);
}

.tabs__panels {
  display: grid;
}

.tabs__panel {
  background: rgba(15, 23, 42, 0.65);
  border-radius: var(--radius-large);
  border: 1px solid rgba(55, 65, 81, 0.75);
  padding: 32px;
}

.tabs__panel[hidden] {
  display: none;
}

.panel__content {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.panel__text p {
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 32rem;
}

.panel__visual {
  display: flex;
  justify-content: center;
}

.workflow {
  display: grid;
  gap: 16px;
  background: rgba(17, 24, 39, 0.8);
  border-radius: var(--radius-medium);
  padding: 24px;
  border: 1px solid rgba(96, 165, 250, 0.25);
  min-width: 260px;
  position: relative;
}

.workflow::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), rgba(96, 165, 250, 0.6));
  opacity: 0.5;
}

.workflow__node {
  padding: 14px 20px;
  border-radius: 14px;
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid rgba(96, 165, 250, 0.4);
  font-family: 'JetBrains Mono', 'Fira Code', 'Source Code Pro', monospace;
  font-size: 0.85rem;
  position: relative;
  padding-left: 48px;
  color: var(--color-text-primary);
  box-shadow: inset 0 0 0 1px rgba(96, 165, 250, 0.25);
}

.workflow__node::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 16px rgba(52, 211, 153, 0.7);
}

.workflow--customer::before {
  animation: flowDot 4s linear infinite;
}

.workflow--inventory::before {
  background: linear-gradient(180deg, rgba(96, 165, 250, 0.7), rgba(52, 211, 153, 0.7));
}

.workflow--fulfillment::before {
  background: linear-gradient(180deg, rgba(52, 211, 153, 0.7), rgba(96, 165, 250, 0.7));
}

.workflow--marketing::before {
  animation: flowDot 4.5s linear infinite reverse;
}

@keyframes flowDot {
  0% {
    top: 18%;
  }
  50% {
    top: 50%;
  }
  100% {
    top: 82%;
  }
}

.section--testimonial {
  background: var(--color-bg-secondary);
}

.testimonial {
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid rgba(52, 211, 153, 0.35);
  border-radius: var(--radius-large);
  padding: 48px;
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  box-shadow: 0 20px 50px -32px rgba(52, 211, 153, 0.4);
}

blockquote {
  margin: 0 0 32px;
  font-size: 1.5rem;
  font-style: italic;
}

.testimonial__meta {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.testimonial__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(52, 211, 153, 0.6), rgba(96, 165, 250, 0.6));
  opacity: 0.9;
}

.testimonial__name {
  font-weight: 600;
  margin: 0;
}

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

.section--cta {
  background: var(--color-bg-primary);
  text-align: center;
  padding-block: 100px;
}

.section--cta h2 {
  margin-bottom: 32px;
}

.cta__subtext {
  color: var(--color-text-secondary);
  margin-top: 18px;
}

.footer {
  background: var(--color-bg-secondary);
  padding-block: 32px;
  color: var(--color-text-secondary);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__nav {
  display: flex;
  gap: 24px;
}

.footer__nav a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .hero__content,
  .solution__layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__text,
  .hero__visual,
  .solution__text,
  .solution__visual {
    grid-column: auto;
  }

  .hero__visual,
  .solution__visual {
    justify-content: center;
  }

  .hero__social-proof {
    align-items: center;
  }

  .hero__logos {
    justify-content: center;
  }

  .hero__visual-image {
    width: min(360px, 100%);
  }

  .solution__text {
    font-size: 1rem;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-block: 100px 60px;
  }

  .hero__visual-image {
    width: min(300px, 92vw);
  }

  .section {
    padding-block: 90px;
  }

  .tabs {
    padding: 20px;
  }

  .tabs__panel {
    padding: 24px;
  }

  blockquote {
    font-size: 1.25rem;
  }

  .cta-button {
    width: 100%;
  }
}