:root {
  --ink: #17212b;
  --muted: #52626d;
  --soft: #eef3f6;
  --paper: #f7fafb;
  --white: #ffffff;
  --line: #dbe5ea;
  --blue: #0f4f66;
  --teal: #147f86;
  --cyan: #26aeb5;
  --dark: #0d1a24;
  --shadow: 0 22px 60px rgba(15, 37, 50, 0.12);
  --radius: 8px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(219, 229, 234, 0.86);
  background: rgba(247, 250, 251, 0.92);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 26px;
}

.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { width: 186px; height: auto; }

.site-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.site-nav a,
.footer-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 680;
  text-decoration: none;
}

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 0;
  border-radius: var(--radius);
  background: var(--blue);
  color: var(--white);
  font-weight: 760;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: transparent;
  color: var(--blue);
  border: 1px solid rgba(15, 79, 102, 0.36);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 94px 0 72px;
  background:
    radial-gradient(circle at 82% 18%, rgba(38, 174, 181, 0.13), transparent 34%),
    linear-gradient(180deg, #fbfdfe 0%, #eef5f7 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(15, 79, 102, 0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(90deg, transparent, #000 42%, transparent 100%);
  opacity: 0.45;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr);
  gap: 54px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 800px;
  margin-bottom: 22px;
  font-size: clamp(2.35rem, 5.8vw, 5.15rem);
  line-height: 1.02;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.85rem, 3.6vw, 3.2rem);
  line-height: 1.08;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.2;
}

.hero-copy {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 22px;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust-line span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: #485965;
  font-size: 0.92rem;
  font-weight: 690;
}

.region-line {
  margin: 18px 0 0;
  color: var(--muted);
}

.data-flow {
  position: relative;
  min-height: 430px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(90deg, rgba(15,79,102,.08) 1px, transparent 1px),
    linear-gradient(rgba(15,79,102,.08) 1px, transparent 1px),
    var(--white);
  background-size: 38px 38px;
  box-shadow: var(--shadow);
}

.flow-column {
  position: absolute;
  display: grid;
  gap: 12px;
  width: 34%;
}

.flow-column.left { left: 30px; top: 42px; }
.flow-column.right { right: 30px; bottom: 42px; }

.flow-pill,
.result-pill {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  background: rgba(247, 250, 251, 0.94);
  color: #31434d;
  font-weight: 740;
  font-size: 0.92rem;
}

.analysis-node {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 138px;
  height: 138px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(20, 127, 134, 0.36);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #ffffff, #e8f4f6);
  box-shadow: 0 18px 42px rgba(15, 79, 102, 0.16);
  color: var(--blue);
  font-weight: 850;
}

.flow-line {
  position: absolute;
  left: 27%;
  right: 27%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
}

.flow-line.one { top: 34%; }
.flow-line.two { top: 50%; }
.flow-line.three { top: 66%; }

.section { padding: 84px 0; }
.section.alt {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading p:not(.section-kicker),
.split p,
.card p,
.step p,
.highlight p,
.contact-card p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(330px, 1.05fr);
  gap: 54px;
  align-items: start;
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
  padding-left: 18px;
  color: #3f505b;
}

.list-grid li { margin: 5px 0; }

.card-grid,
.usecase-grid,
.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.usecase-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card,
.usecase,
.step,
.contact-card,
.highlight {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 30px rgba(15, 37, 50, 0.06);
}

.card,
.usecase,
.step { padding: 24px; }

.card ul,
.step ul,
.contact-list {
  padding-left: 18px;
  margin: 16px 0 0;
  color: #40515c;
}

.card li,
.step li,
.contact-list li { margin: 8px 0; }

.card-number,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  border-radius: 7px;
  background: #dff1f3;
  color: var(--blue);
  font-weight: 850;
}

.highlight {
  padding: 34px;
  background:
    linear-gradient(135deg, rgba(15, 79, 102, 0.96), rgba(13, 26, 36, 0.96)),
    var(--dark);
  color: var(--white);
}

.highlight p { color: rgba(255, 255, 255, 0.82); }
.highlight .section-kicker { color: #91dbe1; }

.check-panel {
  border: 1px solid rgba(20, 127, 134, 0.25);
  border-radius: 12px;
  padding: 30px;
  background: linear-gradient(145deg, #ffffff, #edf7f8);
  box-shadow: var(--shadow);
}

.check-list {
  columns: 2;
  column-gap: 34px;
  padding-left: 18px;
  color: #3f505b;
}

.check-list li {
  break-inside: avoid;
  margin: 7px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: 42px;
}

.contact-card { padding: 26px; }

.form {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: #23343f;
  font-weight: 720;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

textarea {
  min-height: 154px;
  resize: vertical;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-weight: 520;
}

.checkbox input {
  width: auto;
  margin-top: 5px;
}

.hp-field {
  position: absolute;
  left: -5000px;
}

.site-footer {
  padding: 42px 0;
  background: var(--dark);
  color: rgba(255, 255, 255, 0.84);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
}

.footer-logo img {
  width: 174px;
  filter: brightness(0) invert(1);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a { color: rgba(255, 255, 255, 0.78); }

@media (prefers-reduced-motion: no-preference) {
  .button,
  .card,
  .usecase,
  .step {
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
  }

  .button:hover,
  .card:hover,
  .usecase:hover,
  .step:hover {
    transform: translateY(-2px);
  }
}

@media (max-width: 980px) {
  .header-inner { grid-template-columns: auto auto; }
  .nav-toggle { display: block; justify-self: end; }
  .site-nav,
  .header-cta { display: none; }
  .site-nav.is-open {
    display: grid;
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
  }
  .hero-grid,
  .split,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .card-grid,
  .step-grid,
  .usecase-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1120px); }
  .brand img { width: 152px; }
  .hero { padding: 58px 0 50px; }
  h1 { font-size: 2.35rem; }
  h2 { font-size: 1.82rem; }
  .data-flow { min-height: 310px; padding: 18px; }
  .flow-column { width: 42%; }
  .flow-column.left { left: 18px; top: 26px; }
  .flow-column.right { right: 18px; bottom: 26px; }
  .analysis-node {
    width: 94px;
    height: 94px;
    font-size: 0.88rem;
  }
  .flow-pill,
  .result-pill { padding: 9px 10px; font-size: 0.78rem; }
  .section { padding: 58px 0; }
  .card-grid,
  .step-grid,
  .usecase-grid,
  .form-row,
  .list-grid {
    grid-template-columns: 1fr;
  }
  .check-list { columns: 1; }
  .button { width: 100%; }
}