:root {
  --color-bg: #0d1117;
  --color-surface: #111827;
  --color-surface-light: #182235;
  --color-accent: #3b82f6;
  --color-accent-soft: rgba(59, 130, 246, 0.1);
  --color-text: #f9fafb;
  --color-text-muted: #cbd5f5;
  --color-border: rgba(148, 163, 184, 0.2);
  --container-width: min(1160px, 92vw);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.45);
  --shadow-md: 0 14px 36px rgba(2, 6, 23, 0.35);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'PingFang SC', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.25), transparent 35%),
              radial-gradient(circle at bottom right, rgba(14, 165, 233, 0.2), transparent 40%),
              var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

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

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

.container {
  width: var(--container-width);
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.section h2 {
  font-size: clamp(2rem, 2vw + 1.5rem, 2.8rem);
  margin-bottom: 16px;
}

.section-lead {
  font-size: 1.1rem;
  max-width: 640px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(13, 17, 23, 0.8);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.95rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--color-text);
}

.cta-link {
  padding: 10px 18px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
}

.hero {
  padding: 140px 0 110px;
}

.hero .container {
  display: grid;
  gap: 64px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.6rem, 3vw + 1.5rem, 3.6rem);
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero-copy .lead {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 520px;
}

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: rgba(148, 163, 184, 0.85);
  margin-bottom: 16px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  margin: 32px 0 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn.primary:hover,
.btn.primary:focus {
  transform: translateY(-2px);
}

.btn.ghost {
  background: rgba(148, 163, 184, 0.08);
  color: var(--color-text);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.metrics {
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.metrics dt {
  font-size: 1.8rem;
  font-weight: 700;
}

.metrics dd {
  margin: 6px 0 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.hero-visual .screen {
  background: linear-gradient(160deg, rgba(23, 37, 84, 0.6), rgba(8, 47, 73, 0.6));
  border-radius: 30px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.screen-header {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.screen-header span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.25);
}

.screen-body {
  display: grid;
  gap: 16px;
}

.chart {
  border-radius: 18px;
  background: rgba(148, 163, 184, 0.11);
  min-height: 110px;
  position: relative;
  overflow: hidden;
}

.chart::after {
  content: '';
  position: absolute;
  inset: 16px;
  border-radius: 12px;
  background: conic-gradient(from 145deg, rgba(59, 130, 246, 0.6), rgba(56, 189, 248, 0.4), rgba(14, 165, 233, 0.6));
  opacity: 0.65;
}

.chart--small {
  min-height: 70px;
}

.grid.three {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: rgba(15, 23, 42, 0.6);
  padding: 28px;
  border-radius: 22px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  backdrop-filter: blur(8px);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
}

.platform {
  background: rgba(15, 23, 42, 0.35);
}

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

.platform-item {
  padding: 28px;
  border-radius: 18px;
  background: rgba(24, 34, 53, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.1);
}

.case {
  background: linear-gradient(180deg, rgba(148, 163, 184, 0.08), rgba(15, 23, 42, 0.8));
}

.case-content {
  display: grid;
  gap: 36px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: stretch;
}

.case-card {
  background: rgba(17, 24, 39, 0.8);
  padding: 32px;
  border-radius: 24px;
  border: 1px solid rgba(59, 130, 246, 0.18);
  box-shadow: var(--shadow-md);
}

.case-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.case-card dt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.case-card dd {
  margin: 6px 0 0;
  font-size: 1.3rem;
  font-weight: 600;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.insight-card {
  border-radius: 20px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  background: rgba(13, 17, 23, 0.75);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.insight-visual {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(59, 130, 246, 0.18);
  background: rgba(17, 24, 39, 0.6);
  padding: 0;
}

.tag {
  align-self: flex-start;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  background: rgba(59, 130, 246, 0.12);
  color: #bae6fd;
  padding: 6px 12px;
  border-radius: 999px;
}

.text-link {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.95rem;
}

.contact {
  background: rgba(15, 23, 42, 0.4);
}

.contact .container {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.contact-card {
  padding: 32px;
  border-radius: 24px;
  background: rgba(12, 17, 23, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.18);
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.contact-form label {
  display: grid;
  gap: 12px;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 12px 14px;
  background: rgba(15, 23, 42, 0.6);
  color: var(--color-text);
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(59, 130, 246, 0.5);
  outline-offset: 3px;
}

.privacy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.contact-info {
  padding: 32px;
  border-radius: 24px;
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.contact-info a {
  color: var(--color-accent);
}

.badge {
  align-self: flex-start;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(59, 130, 246, 0.4);
  font-size: 0.85rem;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  padding: 32px 0;
  background: rgba(13, 18, 26, 0.9);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.site-footer nav {
  display: flex;
  gap: 18px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    right: 4vw;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(13, 17, 23, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 18px;
    gap: 16px;
    min-width: 200px;
    box-shadow: var(--shadow-md);
    transform: scale(0.95);
    transform-origin: top right;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .metrics {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 72px 0;
  }

  .hero {
    padding-top: 120px;
  }

  .container {
    width: min(94vw, 600px);
  }
}