/* Header: one fixed height; scroll only changes the surface. */
.site-header { --header-progress: 0; position: absolute; inset: 0 0 auto; z-index: 30; background: rgb(255 255 255 / var(--header-progress)); box-shadow: 0 1px 0 rgb(41 43 46 / calc(var(--header-progress) * .09)), 0 8px 22px rgb(41 43 46 / calc(var(--header-progress) * .025)); }
.site-header.header-enhanced { position: fixed; }
.header-inner { min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.brand { display: inline-flex; flex-shrink: 0; align-items: center; min-height: 44px; }
.brand img { width: 166px; }
.main-nav { display: flex; align-items: center; gap: 34px; font-size: var(--text-small); font-weight: 500; }
.main-nav > a:not(.button) { display: inline-flex; align-items: center; min-height: 44px; position: relative; }
.main-nav > a:not(.button)::after { content: ''; position: absolute; bottom: 7px; left: 0; right: 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform var(--duration-fast) var(--ease-out); }
.main-nav > a:hover::after { transform: scaleX(1); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-4); min-height: 52px; padding: 13px 23px; border: 1px solid transparent; border-radius: var(--radius); font-family: var(--font-sans); font-size: var(--text-small); font-weight: 500; line-height: 1.5; transition: background var(--duration-fast), box-shadow var(--duration-fast), transform var(--duration-fast); }
.button-dark { background: var(--color-ink); color: var(--color-white); }
.button-dark:hover { background: #454b54; box-shadow: var(--shadow-soft); transform: translateY(-2px); }
.button-light { background: var(--color-white); color: var(--color-ink); }
.button-light:hover { background: var(--color-silver); transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button:focus-visible { outline-color: var(--color-ink); }
.product .button:focus-visible { outline-color: var(--color-white); }
.button span, .text-link span { font-size: 1.2rem; font-weight: 400; }
.header-login { min-height: 46px; margin-left: 5px; padding-inline: 19px; gap: 24px; }
.text-link { display: inline-flex; align-items: center; gap: var(--space-3); min-height: 48px; font-family: var(--font-sans); font-size: var(--text-small); font-weight: 500; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.menu-toggle { display: none; }
/* Hero */
.hero { background: var(--color-silver); padding-top: var(--header-height); }
.hero-main { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; min-height: 587px; padding-block: 53px 46px; gap: 24px; }
.hero-copy { position: relative; z-index: 1; padding-bottom: 12px; }
.hero .eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 29px; font-size: .625rem; letter-spacing: .115em; }
.eyebrow-mark { width: 6px; height: 6px; background: var(--color-secondary); flex-shrink: 0; }
.headline-line { display: block; }
.hero-description { max-width: 450px; margin-top: 26px; font-size: var(--text-lead); color: var(--color-secondary); line-height: 1.7; }
.hero-actions { display: flex; align-items: center; gap: 29px; margin-top: 33px; }
.hero-visual { position: relative; align-self: center; margin-right: -18px; }
.hero-art { width: 100%; height: auto; overflow: visible; }
.visual-caption { display: flex; justify-content: space-between; margin: 14px 42px 0 28px; padding-top: 16px; border-top: 1px solid #bec3c7; font-family: var(--font-sans); font-size: .625rem; color: var(--color-muted); letter-spacing: .04em; }
.hero-baseline { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; border-top: 1px solid #c8cccf; font-size: .6875rem; color: var(--color-muted); }
.hero-baseline > span:nth-child(2) { margin-left: auto; }
.baseline-arrow { font-size: 1.2rem; margin-left: 28px; }
/* Solutions */
.section-intro { text-align: center; }
.section-intro .eyebrow { margin-bottom: 21px; color: var(--color-muted); }
.section-intro > p:last-child { margin-top: 21px; color: var(--color-muted); font-size: var(--text-lead); line-height: 1.6; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 69px; gap: 37px; }
.solution { padding-top: 23px; border-top: var(--border); }
.solution-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 31px; }
.index { font-family: var(--font-sans); font-size: .75rem; color: var(--color-muted); }
.solution-top svg { stroke: var(--color-secondary); fill: none; stroke-width: 1.3; }
.solution h3 { margin-bottom: 17px; }
.solution > p { font-size: .9375rem; color: var(--color-muted); max-width: 330px; }
.solution-note { display: block; margin-top: 28px; font-family: var(--font-sans); font-size: .625rem; font-weight: 500; letter-spacing: .075em; text-transform: uppercase; color: var(--color-secondary); }
/* Approach */
.approach { background: var(--color-soft); }
.section-heading { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-7); align-items: end; }
.section-heading .eyebrow, .about .eyebrow { margin-bottom: 23px; color: var(--color-muted); }
.section-heading > p { color: var(--color-muted); max-width: 440px; padding-bottom: 4px; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; list-style: none; padding: 0; margin-top: 68px; }
.process-marker { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #c8cccf; padding-block: 21px 28px; font-family: var(--font-sans); font-size: .6875rem; }
.process-marker > span:last-child { font-size: 1.2rem; }
.process h3 { font-size: 1.4rem; margin-bottom: 13px; }
.process p { font-size: .875rem; color: var(--color-muted); max-width: 240px; }
/* Platform */
.product-section { background: var(--color-paper); padding-top: var(--space-8); }
.product { display: grid; grid-template-columns: .95fr 1.3fr; padding: 67px 64px; background: var(--color-ink); color: var(--color-on-dark); gap: 68px; position: relative; overflow: hidden; }
.product-identity { display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid #51545a; padding-right: 45px; gap: 30px; }
.product-identity > .eyebrow { color: var(--color-dark-muted); }
.product-identity img { width: 254px; }
.product-label { font-size: .8125rem; line-height: 1.7; color: var(--color-dark-muted); }
.product-copy > .eyebrow { color: var(--color-dark-muted); margin-bottom: 18px; }
.product-copy h2 { font-size: clamp(1.8rem, 2.8vw, 2.5rem); }
.product-copy > p:not(.eyebrow) { max-width: 425px; margin-block: 22px 26px; color: var(--color-dark-muted); font-size: .9375rem; }
/* About + footer */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-7); }
.about-copy { color: var(--color-muted); max-width: 480px; }
.about-copy > p + p { margin-top: 20px; }
.about-copy .text-link { margin-top: 18px; color: var(--color-ink); }
.site-footer { background: var(--color-silver); }
.footer-main { display: flex; gap: 28px; align-items: center; min-height: 133px; }
.footer-main .brand img { width: 145px; }
.footer-main > p { font-size: .75rem; color: var(--color-muted); margin-left: auto; }
.footer-main > .text-link { margin-left: 28px; font-size: .75rem; }
.footer-bottom { border-top: 1px solid #c8cccf; display: flex; justify-content: space-between; padding-block: 23px; font-size: .6875rem; color: var(--color-muted); }
@media (max-width: 1100px) {
  .main-nav { gap: 22px; }
  .hero-main { min-height: 550px; gap: 12px; }
  .hero-description { font-size: 1rem; max-width: 380px; }
  .hero .eyebrow { font-size: .5625rem; }
  .product { gap: 44px; padding: 52px 42px; }
  .section-heading, .about-grid { gap: 48px; }
  .solution-grid { gap: 26px; }
  .solution h3 { font-size: 1.25rem; }
}
@media (max-width: 900px) {
  /* Without JS the navigation remains visible and the header stays in flow. */
  .site-header { position: absolute; }
  .header-inner { flex-wrap: wrap; gap: 0; padding-block: 20px; }
  .main-nav { width: 100%; justify-content: space-between; margin-top: 14px; }
  .hero { padding-top: 155px; }
  .site-header.nav-enhanced { position: fixed; }
  .site-header.nav-enhanced:not(.header-enhanced) { background: var(--color-white); }
  .nav-enhanced .header-inner { height: var(--header-height); min-height: var(--header-height); padding-block: 0; flex-wrap: nowrap; }
  .nav-enhanced .menu-toggle { display: inline-flex; min-height: 44px; align-items: center; gap: 14px; padding: 7px 0 7px 15px; border: 0; background: transparent; font-family: var(--font-sans); font-size: .75rem; }
  .menu-icon { display: grid; gap: 6px; width: 22px; }
  .menu-icon span { display: block; width: 22px; height: 1px; background: currentColor; transition: transform var(--duration-fast); }
  [aria-expanded="true"] .menu-icon span:first-child { transform: translateY(3.5px) rotate(45deg); }
  [aria-expanded="true"] .menu-icon span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .nav-enhanced .main-nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; width: auto; margin: 0; padding: 20px var(--page-gutter) 28px; background: var(--color-white); border-bottom: var(--border); box-shadow: var(--shadow-soft); }
  .nav-enhanced.menu-open { background: var(--color-white); }
  .nav-enhanced.menu-open .main-nav { display: flex; flex-direction: column; align-items: stretch; gap: 10px; }
  .nav-enhanced.menu-open .main-nav > a { padding-block: 8px; }
  .nav-enhanced .header-login { margin: 8px 0 0; }
  body:has(.nav-enhanced) .hero { padding-top: var(--header-height); }
  .hero-main { grid-template-columns: 1fr 1fr; min-height: 510px; }
  .headline-line { display: inline; }
  .hero h1 { font-size: clamp(2.3rem, 5.3vw, 3.1rem); }
  .hero .eyebrow { max-width: 280px; }
  .hero-visual { margin-right: -8px; }
  .visual-caption { margin-inline: 15px; font-size: .5rem; }
  .hero-actions { gap: 17px; }
  .hero-actions .button { padding-inline: 18px; gap: 19px; }
  .solution-grid { gap: 24px; }
  .process { grid-template-columns: 1fr 1fr; gap: 30px; }
  .process p { max-width: 290px; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; }
  .section-heading > p { max-width: 540px; }
  .product { padding: 42px 30px; gap: 35px; grid-template-columns: .8fr 1.2fr; }
  .product-identity { padding-right: 30px; }
  .about-grid { gap: 30px; }
}
@media (max-width: 700px) {
  .brand img { width: 145px; }
  .hero-main { grid-template-columns: 1fr; padding-block: 48px 20px; gap: 16px; }
  .hero-copy { padding: 0; }
  .hero .eyebrow { font-size: .5625rem; max-width: none; letter-spacing: .09em; margin-bottom: 23px; }
  .hero h1 { font-size: var(--text-h1); max-width: 520px; line-height: 1.1; }
  .hero-description { font-size: 1rem; margin-top: 23px; max-width: 440px; }
  .hero-actions { margin-top: 26px; gap: 26px; }
  .hero-visual { width: min(100%, 360px); margin: 0 auto; }
  .hero-art { max-height: 310px; }
  .visual-caption { display: none; }
  .hero-baseline { min-height: 62px; font-size: .625rem; }
  .hero-baseline > span:nth-child(2) { display: none; }
  .baseline-arrow { margin-left: auto; }
  .section-intro h2 { font-size: clamp(1.9rem, 6.8vw, 2.5rem); }
  .section-intro > p:last-child { font-size: 1rem; }
  .solution-grid { grid-template-columns: 1fr; gap: 30px; margin-top: 44px; }
  .solution { padding-top: 20px; }
  .solution-top { margin-bottom: 22px; }
  .solution h3 { font-size: 1.4rem; margin-bottom: 12px; }
  .solution p { max-width: 460px; }
  .solution-note { margin-top: 18px; }
  .process { gap: 28px 22px; margin-top: 40px; }
  .process-marker { padding-block: 15px 20px; }
  .process h3 { font-size: 1.2rem; }
  .process p { font-size: .8125rem; }
  .product { grid-template-columns: 1fr; padding: 32px 25px 38px; gap: 32px; }
  .product-identity { flex-direction: row; align-items: center; flex-wrap: wrap; border-right: none; border-bottom: 1px solid #51545a; padding: 0 0 30px; gap: 20px; }
  .product-identity > .eyebrow { flex-basis: 100%; }
  .product-identity img { width: 170px; }
  .product-label { display: none; }
  .product-copy h2 { font-size: 1.8rem; }
  .product-copy > p:not(.eyebrow) { font-size: .875rem; }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-main { flex-wrap: wrap; padding-block: 32px 22px; gap: 20px; }
  .footer-main > p { order: 3; flex-basis: 100%; margin: 0; }
  .footer-main > .text-link { margin-left: auto; gap: 12px; }
  .footer-bottom { font-size: .625rem; gap: 20px; }
  .main-nav:not(.nav-enhanced .main-nav) { gap: 5px 14px; flex-wrap: wrap; font-size: .75rem; }
  .main-nav:not(.nav-enhanced .main-nav) .header-login { min-height: 40px; padding: 8px 12px; gap: 10px; }
  body:not(:has(.nav-enhanced)) .hero { padding-top: 195px; }
}