:root {
  --ink: #10202c;
  --ink-soft: #415563;
  --navy: #091c2a;
  --blue: #1d6e99;
  --blue-bright: #5eb8d1;
  --blue-pale: #e7f3f7;
  --mist: #f4f7f8;
  --line: #d8e1e5;
  --white: #ffffff;
  --max: 1180px;
  --radius: 24px;
  --shadow: 0 24px 80px rgba(10, 35, 51, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  font-family: "Manrope", system-ui, sans-serif;
  line-height: 1.12;
  letter-spacing: -0.035em;
}
h1 { font-size: clamp(3.35rem, 6.4vw, 6rem); margin-bottom: 28px; }
h2 { font-size: clamp(2.45rem, 4.4vw, 4.35rem); margin-bottom: 24px; }
h3 { font-size: 1.35rem; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding: 120px 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 1000; transform: translateY(-150%);
  padding: 10px 16px; background: var(--white); border-radius: 8px;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(216, 225, 229, 0.8);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { flex: 0 0 auto; }
.brand img { width: 225px; height: auto; }
.primary-nav { display: flex; align-items: center; gap: 21px; }
.primary-nav a { flex: 0 0 auto; text-decoration: none; font-size: 0.82rem; font-weight: 600; white-space: nowrap; }
.primary-nav a:not(.nav-cta):hover { color: var(--blue); }
.nav-cta {
  padding: 12px 20px; color: var(--white); background: var(--navy); border-radius: 999px;
}
.menu-toggle { display: none; border: 0; background: transparent; padding: 10px; }
.menu-toggle span:not(.sr-only) { display: block; width: 26px; height: 2px; margin: 5px 0; background: var(--ink); }

.hero {
  position: relative; min-height: 760px; padding: 110px 0 105px; overflow: hidden;
  background:
    radial-gradient(circle at 12% 10%, rgba(94, 184, 209, 0.20), transparent 28%),
    linear-gradient(135deg, #f5f9fa 0%, #ffffff 53%, #eef5f7 100%);
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 90px; align-items: center; }
.eyebrow {
  margin-bottom: 18px; color: var(--blue); font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
}
.hero-lede { max-width: 720px; margin-bottom: 36px; color: var(--ink-soft); font-size: 1.2rem; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 25px;
  border: 1px solid transparent; border-radius: 999px; font-weight: 700; text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--navy); }
.button-primary:hover { background: var(--blue); }
.button-secondary { border-color: var(--line); background: var(--white); }
.button-secondary:hover { border-color: var(--blue); color: var(--blue); }
.hero-proof { display: flex; flex-wrap: wrap; gap: 12px 22px; color: var(--ink-soft); font-size: 0.86rem; }
.hero-proof span { display: flex; align-items: center; gap: 8px; }
.hero-proof span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-bright); }
.hero-visual { position: relative; min-height: 575px; }
.hero-visual > img {
  width: 100%; height: 575px; object-fit: cover; border-radius: 220px 220px 34px 34px;
  box-shadow: var(--shadow); filter: saturate(.75) contrast(1.02);
}
.hero-visual::after {
  content: ""; position: absolute; inset: 0; border-radius: 220px 220px 34px 34px;
  background: linear-gradient(to top, rgba(7, 33, 48, 0.26), transparent 55%); pointer-events: none;
}
.principle-tag {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 9px; min-width: 138px;
  padding: 10px 14px 10px 10px; background: rgba(255,255,255,.92); border: 1px solid rgba(255,255,255,.8);
  border-radius: 999px; box-shadow: 0 12px 35px rgba(10,35,51,.18); font-size: .82rem; font-weight: 700;
  backdrop-filter: blur(12px);
}
.principle-tag span { display: grid; width: 29px; height: 29px; place-items: center; color: var(--white); background: var(--blue); border-radius: 50%; }
.tag-knowledge { top: 14%; left: -36px; }
.tag-presence { top: 32%; right: -45px; }
.tag-harmony { bottom: 27%; left: -46px; }
.tag-power { bottom: 9%; right: -28px; }
.hero-orbit { position: absolute; border: 1px solid rgba(29, 110, 153, .15); border-radius: 50%; }
.orbit-one { width: 520px; height: 520px; right: -220px; top: -150px; }
.orbit-two { width: 230px; height: 230px; left: -100px; bottom: -80px; }

.principles-section { background: var(--navy); color: var(--white); }
.section-heading { margin-bottom: 64px; }
.section-heading.narrow { max-width: 850px; }
.section-heading p:not(.eyebrow) { max-width: 760px; color: #adc0ca; font-size: 1.08rem; }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.18); }
.principle-card { position: relative; min-height: 305px; padding: 38px 30px 25px; border-right: 1px solid rgba(255,255,255,.18); }
.principle-card:first-child { border-left: 1px solid rgba(255,255,255,.18); }
.principle-card h3 { margin: 62px 0 18px; font-size: 1.7rem; }
.principle-card p { color: #adc0ca; font-size: .96rem; }
.card-index { color: var(--blue-bright); font-family: "Manrope", sans-serif; font-weight: 700; }

.action-section { background: var(--mist); }
.action-grid { display: grid; grid-template-columns: .96fr 1.04fr; gap: 90px; align-items: center; }
.image-frame { overflow: hidden; padding: 16px; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); }
.image-frame img { min-height: 410px; object-fit: cover; object-position: center; border-radius: 14px; }
.image-caption { margin: 20px 20px 0; color: var(--ink-soft); font-size: .86rem; }
.action-copy > p:not(.eyebrow) { color: var(--ink-soft); font-size: 1.08rem; }
.process-list { margin: 38px 0 34px; padding: 0; list-style: none; }
.process-list li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 20px 0; border-top: 1px solid var(--line); }
.process-list li:last-child { border-bottom: 1px solid var(--line); }
.process-list li > span { display: grid; width: 36px; height: 36px; place-items: center; color: var(--blue); background: var(--blue-pale); border-radius: 50%; font-weight: 700; }
.process-list h3 { margin: 0 0 4px; font-size: 1.03rem; letter-spacing: -.01em; }
.process-list p { margin: 0; color: var(--ink-soft); font-size: .91rem; }
.text-link { display: inline-flex; gap: 10px; color: var(--blue); font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.capabilities-section { background: var(--white); }
.split-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 90px; align-items: end; }
.split-heading p:last-child { margin-bottom: 28px; color: var(--ink-soft); }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.capability-card { display: flex; min-height: 430px; flex-direction: column; padding: 35px; border-radius: var(--radius); }
.capability-card h3 { margin: auto 0 20px; font-size: 1.75rem; }
.capability-card p:not(.capability-number) { font-size: .96rem; }
.capability-card a { align-self: flex-start; margin-top: 18px; font-weight: 700; text-decoration: none; }
.capability-number { color: rgba(255,255,255,.6); font-weight: 700; }
.card-dark { color: var(--white); background: var(--navy); }
.card-blue { color: var(--white); background: var(--blue); }
.card-light { background: var(--blue-pale); }
.card-light .capability-number { color: var(--blue); }

.mathematics-section { background: #eef2f3; }
.mathematics-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.mathematics-copy p:not(.eyebrow) { color: var(--ink-soft); }
.equation-card { margin: 0; padding: 46px; background: var(--white); border-radius: var(--radius); box-shadow: 0 20px 60px rgba(10,35,51,.09); }
.equation-card img { width: 100%; mix-blend-mode: multiply; }
.equation-card figcaption { margin-top: 25px; color: var(--ink-soft); font-size: .84rem; text-align: center; }

.contact-section { padding: 95px 0; color: var(--white); background: linear-gradient(120deg, #0b2636, #145879); }
.contact-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: end; }
.contact-inner h2 { margin-bottom: 0; }
.contact-action p { color: #c8d9e0; }
.eyebrow-light { color: #8bd1e4; }
.button-white { color: var(--navy); background: var(--white); }
.button-white:hover { color: var(--white); background: var(--blue); }

.site-footer { padding: 70px 0 45px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .7fr; gap: 70px; }
.footer-brand img { width: 220px; margin-bottom: 20px; }
.footer-brand p, .footer-meta p { max-width: 340px; color: var(--ink-soft); font-size: .85rem; }
.site-footer nav { display: grid; align-content: start; gap: 10px; }
.site-footer a { font-size: .87rem; text-decoration: none; }
.site-footer a:hover { color: var(--blue); }
.footer-meta { display: grid; align-content: start; gap: 12px; }

@media (max-width: 1020px) {
  .primary-nav { gap: 18px; }
  .primary-nav a { font-size: .8rem; }
  .hero-grid, .action-grid, .mathematics-grid { gap: 55px; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .principle-card:nth-child(3) { border-left: 1px solid rgba(255,255,255,.18); border-top: 1px solid rgba(255,255,255,.18); }
  .principle-card:nth-child(4) { border-top: 1px solid rgba(255,255,255,.18); }
}

@media (max-width: 1100px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute; top: 86px; left: 0; right: 0; display: none; padding: 22px;
    flex-direction: column; align-items: stretch; background: var(--white); border-bottom: 1px solid var(--line);
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 8px 18px; font-size: .95rem; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--max)); }
  .section { padding: 82px 0; }
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute; top: 86px; left: 0; right: 0; display: none; padding: 22px;
    flex-direction: column; align-items: stretch; background: var(--white); border-bottom: 1px solid var(--line);
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 8px 18px; font-size: .95rem; }
  .nav-cta { text-align: center; }
  .hero { padding-top: 70px; }
  .hero-grid, .action-grid, .mathematics-grid, .split-heading, .contact-inner { grid-template-columns: 1fr; }
  .hero-grid { gap: 65px; }
  .hero-visual { max-width: 560px; margin-inline: auto; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 340px; }
  .split-heading, .contact-inner { gap: 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-meta { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 3rem; }
  h2 { font-size: 2.35rem; }
  .brand img { width: 205px; }
  .hero-visual, .hero-visual > img { min-height: 470px; height: 470px; }
  .principle-tag { min-width: 118px; font-size: .72rem; }
  .tag-knowledge, .tag-harmony { left: -8px; }
  .tag-presence, .tag-power { right: -8px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-card, .principle-card:nth-child(2), .principle-card:nth-child(4) { border-left: 1px solid rgba(255,255,255,.18); border-top: 1px solid rgba(255,255,255,.18); }
  .principle-card:first-child { border-top: 0; }
  .hero-actions .button { width: 100%; }
  .equation-card { padding: 25px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-meta { grid-column: auto; }
}