:root {
  --charcoal-blue: #1F272C;
  --slate-blue: #61778B;
  --light-ash: #E6E7E9;
  --white: #FFFFFF;
  --text: #263038;
  --muted: #5D6A72;
  --border: #D9DEE2;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Montserrat", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand img {
  width: 260px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--charcoal-blue);
}

.nav a:hover {
  color: var(--slate-blue);
}

.hero {
  background: linear-gradient(180deg, var(--light-ash) 0%, #fff 100%);
  padding: 92px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--slate-blue);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--charcoal-blue);
  line-height: 1.12;
}

h1 {
  margin-bottom: 22px;
  max-width: 760px;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.05em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.lead {
  max-width: 690px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--charcoal-blue);
  background: var(--charcoal-blue);
  color: var(--white);
  font-size: 0.92rem;
  font-weight: 700;
}

.button:hover {
  background: var(--slate-blue);
  border-color: var(--slate-blue);
}

.button-secondary {
  background: transparent;
  color: var(--charcoal-blue);
}

.hero-card {
  background: var(--charcoal-blue);
  color: var(--white);
  padding: 32px;
  border-left: 8px solid var(--slate-blue);
}

.step + .step {
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.step span {
  display: block;
  margin-bottom: 6px;
  color: var(--slate-blue);
  font-weight: 800;
  letter-spacing: 0.1em;
}

.step strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.25rem;
}

.step p,
.card p,
.process-list p,
.contact p {
  margin: 0;
  color: var(--muted);
}

.hero-card p {
  color: rgba(255, 255, 255, 0.74);
}

.section {
  padding: 84px 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.compact {
  margin-bottom: 24px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.card {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--border);
  background: var(--white);
}

.card:hover {
  border-color: var(--slate-blue);
}

.section-dark {
  background: var(--charcoal-blue);
  color: var(--white);
}

.section-dark h2,
.section-dark h3 {
  color: var(--white);
}

.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
}

.process-list {
  display: grid;
  gap: 22px;
}

.process-list div {
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.process-list p {
  color: rgba(255, 255, 255, 0.72);
}

.use-cases {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.use-cases span {
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--light-ash);
  color: var(--charcoal-blue);
  font-weight: 700;
  font-size: 0.92rem;
}

.contact {
  padding-top: 0;
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 42px;
  background: var(--light-ash);
  border-left: 8px solid var(--slate-blue);
}

.contact-details {
  display: grid;
  gap: 10px;
  font-weight: 700;
  color: var(--charcoal-blue);
}

.contact-details a:hover {
  color: var(--slate-blue);
}

.footer {
  padding: 26px 0;
  background: var(--charcoal-blue);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.86rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

@media (max-width: 900px) {
  .hero-grid,
  .split,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .brand img {
    width: 220px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, var(--max-width));
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
  }

  .hero,
  .section {
    padding: 58px 0;
  }

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

  .contact {
    padding-top: 0;
  }

  .contact-box {
    padding: 28px;
  }

  .footer-inner {
    flex-direction: column;
  }
}