:root {
  --bg: #f5f9ff;
  --surface: #ffffff;
  --surface-soft: #eef6ff;
  --ink: #061941;
  --muted: #61708e;
  --line: #dbe6f6;
  --blue: #0b62f4;
  --blue-dark: #073b95;
  --teal: #22c6b7;
  --green: #28c771;
  --shadow: 0 24px 80px rgba(8, 38, 86, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 18%, rgba(25, 136, 255, 0.18), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 48%, #ffffff 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 76px;
  padding: 0 clamp(1.5rem, 5vw, 5rem);
  border-bottom: 1px solid rgba(219, 230, 246, 0.72);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.5vw, 2.15rem);
  font-weight: 850;
  letter-spacing: 0.04em;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  font-size: 1.2rem;
  letter-spacing: 0;
  box-shadow: 0 14px 30px rgba(11, 98, 244, 0.22);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.25rem);
  color: #1b2a52;
  font-size: 0.95rem;
  font-weight: 650;
}

.nav a:hover,
.site-footer a:hover {
  color: var(--blue);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 46px;
  padding: 0 1.35rem;
  border-radius: 10px;
  font-weight: 800;
}

.header-cta,
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #0b62f4, #0759df);
  box-shadow: 0 16px 34px rgba(11, 98, 244, 0.22);
}

.button-secondary {
  color: #203052;
  border: 1px solid #c8d5ea;
  background: rgba(255, 255, 255, 0.75);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1.12fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: 620px;
  padding: clamp(4rem, 7vw, 7rem) clamp(1.5rem, 6vw, 6.5rem) 3.5rem;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.hero h1 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.hero p {
  max-width: 600px;
  margin: 1.8rem 0 0;
  color: #263755;
  font-size: clamp(1.06rem, 1.45vw, 1.35rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.product-visual {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 156px 1fr;
  min-height: 420px;
  border: 1px solid rgba(176, 200, 235, 0.84);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-sidebar {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #fafdff, #eff6ff);
}

.visual-sidebar strong {
  display: block;
  margin-bottom: 1.4rem;
  color: var(--blue-dark);
  font-size: 1.1rem;
}

.visual-sidebar span {
  display: block;
  margin: 0.9rem 0;
  color: #5b6c8c;
  font-size: 0.86rem;
  font-weight: 700;
}

.visual-main {
  padding: 1.6rem;
}

.visual-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #12264e;
  font-weight: 850;
}

.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 99px;
  background: var(--blue);
  box-shadow: 0 0 0 6px rgba(11, 98, 244, 0.1);
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 2.5rem 0 2rem;
}

.flow-node {
  position: relative;
  min-height: 82px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #f3f8ff);
  color: #30415f;
  font-size: 0.84rem;
  font-weight: 750;
  box-shadow: 0 16px 36px rgba(9, 41, 88, 0.08);
}

.flow-node::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -1rem;
  width: 1rem;
  border-top: 2px dotted #87a9df;
}

.flow-node:last-child::after {
  display: none;
}

.flow-node.accent {
  color: var(--blue-dark);
  border-color: #bcd4ff;
  background: linear-gradient(180deg, #ffffff, #eaf4ff);
}

.mini-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 1rem;
}

.mini-card {
  min-height: 126px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.mini-card span {
  color: #5e6d86;
  font-size: 0.84rem;
  font-weight: 800;
}

.line-card svg {
  width: 100%;
  height: 72px;
  margin-top: 0.7rem;
}

.line-card path {
  fill: none;
  stroke: var(--blue);
  stroke-width: 5;
  stroke-linecap: round;
}

.donut {
  width: 82px;
  height: 82px;
  margin: 0.9rem auto 0;
  border-radius: 50%;
  background: conic-gradient(var(--blue) 0 44%, var(--teal) 44% 73%, #ffb01f 73% 88%, #eef4ff 88% 100%);
  box-shadow: inset 0 0 0 20px #fff;
}

.checklist p {
  margin: 0.7rem 0 0;
  color: #51617e;
  font-size: 0.83rem;
  font-weight: 700;
}

.network {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    radial-gradient(circle, rgba(18, 145, 245, 0.48) 1.5px, transparent 2px),
    linear-gradient(120deg, transparent 0%, rgba(32, 182, 214, 0.08) 50%, transparent 100%);
  background-size: 70px 70px, 100% 100%;
}

.network-left {
  mask-image: linear-gradient(90deg, transparent 0%, #000 38%, #000 100%);
}

.section {
  padding: 4rem clamp(1.5rem, 6vw, 6.5rem);
}

.section h2,
.process h2,
.final-cta h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.services h2,
.process h2 {
  text-align: center;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.service-grid article {
  min-height: 160px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 44px rgba(8, 38, 86, 0.07);
}

.icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  font-weight: 900;
}

.icon.phone::before {
  content: "";
  width: 18px;
  height: 28px;
  border: 3px solid #fff;
  border-radius: 6px;
}

.icon.chart {
  align-items: end;
  grid-template-columns: repeat(3, 7px);
  gap: 4px;
  padding: 10px;
}

.icon.chart::before,
.icon.chart::after,
.icon.integration::before {
  content: "";
  display: block;
}

.icon.chart::before {
  height: 22px;
  background: #fff;
  border-radius: 99px;
  box-shadow: 11px -8px 0 #fff, 22px -2px 0 #fff;
}

.icon.integration::before {
  width: 26px;
  height: 26px;
  border: 4px solid #fff;
  border-radius: 8px;
  box-shadow: 14px 14px 0 -8px #fff, -14px 14px 0 -8px #fff;
}

.service-grid h3,
.process-grid h3 {
  margin: 0 0 0.6rem;
  font-size: 1.08rem;
}

.service-grid p,
.process-grid p,
.split p,
.final-cta p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.process {
  position: relative;
  padding: 3.5rem clamp(1.5rem, 6vw, 6.5rem);
  color: #fff;
  background:
    radial-gradient(circle at 100% 20%, rgba(34, 198, 183, 0.22), transparent 27rem),
    linear-gradient(135deg, #041936, #082a56 56%, #03142c);
  overflow: hidden;
}

.process h2,
.process-grid h3 {
  color: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.process-grid article {
  position: relative;
  padding: 0 1rem 0 5.2rem;
}

.process-grid span {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  font-size: 1.1rem;
  font-weight: 900;
}

.process-grid p {
  color: rgba(255, 255, 255, 0.76);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  gap: 4rem;
  align-items: center;
}

.split p {
  max-width: 640px;
  margin-top: 1.15rem;
  font-size: 1.08rem;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.benefits div {
  min-height: 150px;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(8, 38, 86, 0.07);
}

.benefits strong,
.benefits span {
  display: block;
}

.benefits strong {
  margin-bottom: 0.5rem;
  color: var(--blue);
  font-size: 1.05rem;
}

.benefits span {
  color: var(--muted);
  line-height: 1.55;
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin: 0 clamp(1.5rem, 6vw, 6.5rem) 4rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    radial-gradient(circle at 88% 20%, rgba(34, 198, 183, 0.2), transparent 20rem),
    #fff;
  box-shadow: var(--shadow);
}

.final-cta p {
  max-width: 620px;
  margin-top: 1rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.6rem clamp(1.5rem, 6vw, 6.5rem);
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: #fff;
  font-weight: 650;
}

@media (max-width: 1100px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .product-visual {
    grid-template-columns: 132px 1fr;
  }

  .service-grid,
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-header {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    padding: 1rem 1.25rem;
  }

  .nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 1rem;
    font-size: 0.9rem;
  }

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }

  .hero-actions,
  .final-cta,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .product-visual {
    grid-template-columns: 1fr;
  }

  .visual-sidebar {
    display: none;
  }

  .flow,
  .mini-grid,
  .service-grid,
  .process-grid,
  .benefits {
    grid-template-columns: 1fr;
  }

  .flow-node::after {
    display: none;
  }

  .process-grid article {
    min-height: 84px;
  }
}