:root {
  --navy: #071d3a;
  --navy-2: #0b2c50;
  --green: #6fba2c;
  --green-dark: #579a1d;
  --mint: #edf6e7;
  --ink: #142943;
  --slate: #5d6c7d;
  --line: #dfe6eb;
  --soft: #f5f8f9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Arial, Helvetica, sans-serif; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
svg { width: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.site-header {
  height: 96px; display: flex; align-items: center; gap: 44px; padding: 0 clamp(24px, 5vw, 80px);
  position: absolute; z-index: 20; width: 100%; color: var(--navy);
}
.brand { display: flex; align-items: center; gap: 12px; font-size: 28px; font-weight: 700; letter-spacing: -.8px; white-space: nowrap; }
.brand strong { font-weight: 800; }
.brand-mark { width: 42px; height: 48px; position: relative; display: inline-block; }
.brand-mark::before { content: ""; position: absolute; inset: 4px 4px 5px; border: 4px solid var(--navy); border-top-color: transparent; border-radius: 50% 10% 50% 50%; transform: rotate(-43deg); }
.brand-mark i, .brand-mark b { position: absolute; width: 20px; height: 36px; border: 3px solid var(--green); border-left: 0; border-bottom: 0; border-radius: 50% 50% 0 50%; transform: rotate(32deg); left: 16px; top: 2px; }
.brand-mark b { left: 9px; top: 10px; transform: rotate(5deg) scale(.68); }
.nav { display: flex; align-items: center; justify-content: center; gap: clamp(26px, 3.4vw, 58px); margin-left: auto; }
.nav a { font-size: 15px; font-weight: 700; position: relative; padding: 12px 0; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 4px; height: 2px; width: 0; background: var(--green); transition: width .25s ease; }
.nav a:hover::after, .nav a:focus-visible::after { width: 100%; }
.header-call { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; color: var(--green); border: 1px solid var(--green); margin-left: clamp(10px, 2vw, 36px); }
.menu-button { display: none; border: 0; background: transparent; padding: 8px; margin-left: auto; }
.menu-button span { width: 25px; height: 2px; background: var(--navy); display: block; margin: 5px; }

.hero { min-height: 860px; position: relative; overflow: hidden; padding: 96px clamp(24px, 5vw, 80px) 150px; display: grid; grid-template-columns: 49% 51%; align-items: center; background: linear-gradient(135deg, #fff 0%, #fff 47%, #eef2f3 47.1%, #fff 51%); }
.hero::after { content: ""; position: absolute; width: 540px; height: 540px; border: 2px solid rgba(111,186,44,.35); border-radius: 60px; transform: rotate(22deg); right: -370px; bottom: -230px; }
.hero-copy { z-index: 3; max-width: 670px; padding-top: 30px; animation: rise .65s both; }
.eyebrow { color: var(--green-dark); font-size: 13px; line-height: 1.4; letter-spacing: .18em; font-weight: 800; margin: 0 0 24px; }
.eyebrow::after { content: ""; display: block; margin-top: 18px; width: 48px; height: 3px; border-radius: 2px; background: var(--green); }
.hero h1 { color: var(--navy); font-size: clamp(52px, 5.2vw, 76px); line-height: 1.08; letter-spacing: -.055em; margin: 0; font-weight: 800; }
.hero-text { color: var(--slate); font-size: 20px; line-height: 1.65; max-width: 520px; margin: 32px 0 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.button { min-height: 54px; padding: 0 26px; border-radius: 9px; display: inline-flex; align-items: center; justify-content: center; gap: 24px; font-weight: 700; border: 1px solid transparent; cursor: pointer; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.primary { background: linear-gradient(135deg, var(--green), #5aa91d); color: #fff; box-shadow: 0 12px 24px rgba(74,140,24,.2); }
.primary:hover { background: var(--green-dark); box-shadow: 0 14px 26px rgba(74,140,24,.28); }
.secondary { border-color: var(--navy); color: var(--navy); background: rgba(255,255,255,.7); }
.secondary:hover { background: var(--mint); }
.hero-media { position: absolute; width: 52%; height: 74%; right: 0; top: 96px; background: linear-gradient(90deg, rgba(7,29,58,.12), transparent 25%), url("/hero-osgb.png") center/cover no-repeat, linear-gradient(135deg,#dce5e8,#9aabb0); clip-path: polygon(18% 0,100% 0,100% 100%,0 100%); animation: reveal .85s .1s both; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, transparent 70%, rgba(7,29,58,.45)); }
.trust-row { position: absolute; z-index: 5; bottom: 48px; left: clamp(24px, 5vw, 80px); right: clamp(24px, 5vw, 80px); display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.trust-row > div { min-height: 126px; background: #fff; border-radius: 14px; display: flex; align-items: center; gap: 22px; padding: 26px 30px; box-shadow: 0 18px 40px rgba(7,29,58,.12); transition: transform .2s ease; }
.trust-row > div:hover { transform: translateY(-3px); }
.trust-icon, .service-icon { flex: 0 0 auto; width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; color: var(--navy); background: var(--mint); }
.trust-icon svg { width: 31px; height: 31px; }
.trust-row strong { font-size: 16px; color: var(--navy); }

.section { padding: 110px clamp(24px, 6vw, 96px); }
.section-heading { display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 80px; max-width: 1240px; margin: 0 auto 56px; }
.section h2, .about h2 { margin: 0; color: var(--navy); font-size: clamp(38px, 4vw, 57px); line-height: 1.1; letter-spacing: -.04em; }
.section-heading > p { color: var(--slate); line-height: 1.8; font-size: 17px; margin: 0 0 5px; }
.service-grid { max-width: 1240px; margin: auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.service-card { border: 1px solid var(--line); border-radius: 14px; padding: 28px; min-height: 350px; position: relative; transition: transform .25s ease, box-shadow .25s ease; }
.service-card:hover { transform: translateY(-6px); box-shadow: 0 18px 36px rgba(7,29,58,.09); }
.card-number { position: absolute; right: 24px; top: 25px; font-weight: 800; color: #bfc9d0; }
.service-icon { margin: 15px 0 34px; }
.service-icon svg { width: 30px; height: 30px; }
.service-card h3 { font-size: 21px; line-height: 1.3; margin: 0 0 15px; color: var(--navy); }
.service-card p { color: var(--slate); line-height: 1.7; font-size: 14px; }
.service-card a { position: absolute; bottom: 28px; font-size: 14px; font-weight: 800; color: var(--green-dark); }
.service-card a span, .text-link span { margin-left: 8px; }

.about { display: grid; grid-template-columns: 1fr 1fr; min-height: 660px; background: var(--soft); }
.about-visual { background: var(--navy); position: relative; overflow: hidden; display: grid; place-items: center; }
.metric { z-index: 2; color: #fff; display: flex; flex-direction: column; text-align: center; }
.metric strong { font-size: clamp(72px, 9vw, 132px); color: var(--green); letter-spacing: -.07em; }
.metric span { font-size: 18px; letter-spacing: .12em; text-transform: uppercase; }
.rings { position: absolute; width: 480px; height: 480px; }
.rings i { position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; }
.rings i:nth-child(2) { inset: 55px; border-color: rgba(111,186,44,.4); }
.rings i:nth-child(3) { inset: 120px; border-color: rgba(255,255,255,.2); }
.about-copy { padding: 90px clamp(45px, 8vw, 130px); align-self: center; }
.about-copy > p:not(.eyebrow) { color: var(--slate); font-size: 17px; line-height: 1.8; margin: 28px 0; max-width: 600px; }
.about-copy ul { padding: 0; list-style: none; margin: 0 0 34px; }
.about-copy li { padding: 12px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.about-copy li span { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; color: var(--green-dark); background: var(--mint); margin-right: 10px; }
.text-link { color: var(--navy); font-weight: 800; border-bottom: 2px solid var(--green); padding-bottom: 7px; }

.training { background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: #fff; display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.eyebrow.light { color: #9bd951; }
.training h2 { color: #fff; }
.training-copy > p:not(.eyebrow) { color: #c9d5df; line-height: 1.8; font-size: 17px; max-width: 540px; margin: 25px 0 34px; }
.lime { background: var(--green); color: var(--navy); }
.training-list > div { display: flex; gap: 28px; align-items: center; min-height: 86px; border-bottom: 1px solid rgba(255,255,255,.17); }
.training-list span { color: var(--green); font-size: 13px; font-weight: 800; }
.training-list strong { font-size: clamp(17px, 2vw, 23px); }

.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(60px, 9vw, 140px); max-width: 1440px; margin: auto; }
.contact-copy > p:not(.eyebrow) { color: var(--slate); font-size: 17px; line-height: 1.8; }
.contact-details { margin-top: 42px; display: grid; gap: 18px; }
.contact-details div { border-bottom: 1px solid var(--line); padding-bottom: 15px; display: flex; justify-content: space-between; gap: 20px; }
.contact-details span { color: var(--slate); }
.contact-details strong { color: var(--navy); }
.contact-form { background: var(--soft); border-radius: 16px; padding: clamp(24px, 4vw, 46px); display: grid; gap: 18px; }
.contact-form label { font-size: 13px; font-weight: 800; color: var(--navy); display: grid; gap: 8px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid #d4dde2; border-radius: 8px; background: #fff; padding: 14px; color: var(--ink); outline: none; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(111,186,44,.14); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form .button { width: 100%; }
.success { margin: 0; padding: 12px; border-radius: 8px; background: var(--mint); color: #376c16; font-size: 14px; font-weight: 700; }

footer { background: #06172d; color: #b9c6d3; padding: 50px clamp(24px, 6vw, 96px); display: flex; align-items: center; justify-content: space-between; gap: 32px; font-size: 13px; }
.footer-brand { color: #fff; font-size: 21px; }
.footer-brand .brand-mark { transform: scale(.75); transform-origin: left center; margin-right: -7px; }
.footer-brand .brand-mark::before { border-color: #fff; border-top-color: transparent; }

@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes reveal { from { opacity: 0; transform: translateX(35px); } to { opacity: 1; transform: none; } }

@media (max-width: 980px) {
  .site-header { height: 78px; background: rgba(255,255,255,.96); position: fixed; box-shadow: 0 3px 16px rgba(7,29,58,.08); }
  .brand { font-size: 22px; }
  .brand-mark { transform: scale(.8); transform-origin: left center; margin-right: -7px; }
  .header-call { display: none; }
  .menu-button { display: block; }
  .nav { display: none; position: absolute; top: 78px; left: 0; right: 0; background: #fff; padding: 15px 24px 25px; box-shadow: 0 12px 18px rgba(7,29,58,.1); flex-direction: column; align-items: stretch; gap: 0; }
  .nav.open { display: flex; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line); }
  .hero { min-height: auto; display: block; padding-top: 78px; padding-bottom: 0; background: #fff; }
  .hero-copy { padding: 70px 0 50px; }
  .hero h1 { font-size: clamp(42px, 9vw, 62px); }
  .hero-media { position: relative; width: calc(100% + 48px); height: 430px; top: auto; right: auto; margin-left: -24px; clip-path: none; }
  .trust-row { position: relative; left: auto; right: auto; bottom: auto; grid-template-columns: 1fr; padding: 24px 0 70px; gap: 12px; }
  .trust-row > div { min-height: 92px; }
  .section-heading, .about, .training, .contact { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2,1fr); }
  .about-visual { min-height: 480px; }
  .training { gap: 50px; }
  .contact { gap: 50px; }
}

@media (max-width: 620px) {
  .site-header { padding: 0 18px; }
  .hero { padding-left: 20px; padding-right: 20px; }
  .hero-copy { padding-top: 55px; }
  .hero h1 { font-size: 42px; }
  .hero-text { font-size: 17px; margin: 24px 0 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-media { width: calc(100% + 40px); margin-left: -20px; height: 320px; }
  .trust-row > div { padding: 20px; }
  .section { padding: 78px 20px; }
  .section-heading { gap: 20px; margin-bottom: 36px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 320px; }
  .about-visual { min-height: 390px; }
  .rings { width: 340px; height: 340px; }
  .about-copy { padding: 72px 20px; }
  .training { padding-left: 20px; padding-right: 20px; }
  .form-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}