:root {
  --indigo: #565C8E;
  --indigo-dark: #2F3257;
  --magenta: #A83364;
  --coral: #E5756E;
  --peach: #FEB190;
  --peach-tint: #FFF4EE;
  --ink: #26283F;
  --muted: #5B5E78;
  --line: #E7E3EA;
  --bg: #FFFFFF;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--magenta); }
a:hover { color: var(--indigo); }
h1, h2, h3 {
  font-family: "Questrial", "Inter", system-ui, sans-serif;
  color: var(--indigo-dark);
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 16px;
}
h1 { font-size: clamp(34px, 5vw, 52px); letter-spacing: -0.5px; }
h2 { font-size: clamp(26px, 3.4vw, 34px); }
h3 { font-size: 21px; }
p { margin: 0 0 14px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand span { font-family: "Questrial", sans-serif; font-size: 18px; letter-spacing: 2.5px; color: var(--indigo-dark); white-space: nowrap; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--ink); text-decoration: none; font-size: 15px; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--magenta); border-bottom-color: var(--coral); }
.nav .login { border: 1px solid var(--indigo); color: var(--indigo); border-radius: 999px; padding: 6px 16px; }
.nav .login:hover { background: var(--indigo); color: #fff; border-color: var(--indigo); }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; font: inherit; color: var(--ink); cursor: pointer; }

/* Hero */
.hero { background: linear-gradient(180deg, var(--peach-tint) 0%, #fff 100%); padding: 80px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 560px; }
.hero .mark { width: 100%; max-width: 320px; justify-self: center; }
.eyebrow { display: inline-block; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--magenta); margin-bottom: 14px; }
.btn { display: inline-block; background: var(--magenta); color: #fff; text-decoration: none; padding: 12px 24px; border-radius: 999px; font-size: 16px; margin: 10px 12px 0 0; }
.btn:hover { background: var(--indigo); color: #fff; }
.btn.ghost { background: transparent; color: var(--indigo); border: 1px solid var(--indigo); }
.btn.ghost:hover { background: var(--indigo); color: #fff; }

/* Sections */
section { padding: 72px 0; }
section.alt { background: var(--peach-tint); }
.section-head { max-width: 680px; margin-bottom: 36px; }
.section-head p { color: var(--muted); }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 26px; border-top: 4px solid var(--coral); }
.card:nth-child(2) { border-top-color: var(--magenta); }
.card:nth-child(3) { border-top-color: var(--indigo); }
.card:nth-child(4) { border-top-color: var(--peach); }
.card p { color: var(--muted); font-size: 16px; margin: 0; }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); font-size: 16px; }
.card li { margin-bottom: 6px; }

.regions { display: flex; flex-wrap: wrap; gap: 12px; }
.regions span { border: 1px solid var(--indigo); color: var(--indigo); border-radius: 999px; padding: 8px 18px; font-size: 15px; background: #fff; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.facts { border-left: 3px solid var(--coral); padding-left: 20px; }
.facts dt { font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--magenta); margin-top: 16px; }
.facts dt:first-child { margin-top: 0; }
.facts dd { margin: 4px 0 0; }

.cta { background: var(--indigo-dark); color: #fff; border-radius: 18px; padding: 44px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0 0 6px; }
.cta p { color: #D9DAEA; margin: 0; }
.cta .btn { margin: 0; }

.page-head { background: var(--peach-tint); padding: 56px 0 44px; }
.page-head p { color: var(--muted); max-width: 640px; font-size: 18px; margin: 0; }

.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-list strong { display: block; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--magenta); font-weight: 400; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer a { color: var(--muted); }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .hero .mark { max-width: 200px; order: -1; justify-self: start; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; gap: 0; padding: 8px 16px 16px; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; width: 100%; }
  .nav .login { width: auto; margin-top: 8px; }
  .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 48px 0; }
  section { padding: 52px 0; }
  .cta { padding: 28px; }
  .brand span { font-size: 15px; letter-spacing: 2px; }
}

/* Home hero with photo backdrop */
.hero.photo{position:relative;color:#fff;display:flex;align-items:center;min-height:clamp(520px,44vw,860px);padding:80px 0;background:#1d2440 url(hero-subsea.jpg) center 30%/cover no-repeat}
.hero.photo::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,28,52,.85) 0%,rgba(24,28,52,.78) 45%,rgba(24,28,52,.35) 70%,rgba(24,28,52,.10) 100%)}
.hero.photo .wrap{position:relative;width:100%;grid-template-columns:1fr}
.hero.photo h1{color:#fff;max-width:640px}
.hero.photo p.lead{color:#E3E5F2;max-width:560px}
.hero.photo .btn.ghost{color:#fff;border-color:rgba(255,255,255,.8)}
.hero.photo .btn.ghost:hover{background:#fff;color:#2F3257}
@media(max-width:720px){.hero.photo{min-height:0;padding:72px 0 64px;background-image:url(hero-subsea-m.jpg);background-position:70% center}.hero.photo::before{background:rgba(24,28,52,.72)}}

/* v10: partner photos */
.card{overflow:hidden}
.card-img{width:calc(100% + 52px);max-width:none;margin:-26px -26px 20px;aspect-ratio:16/9;object-fit:cover}
.photo-frame{width:100%;border-radius:14px;aspect-ratio:3/2;object-fit:cover;margin-bottom:28px}
.ticks{list-style:none;padding:0;margin:0 0 16px}
.ticks li{padding:6px 0 6px 26px;position:relative;border-bottom:1px solid var(--line)}
.ticks li::before{content:"";position:absolute;left:4px;top:15px;width:10px;height:10px;border-radius:50%;background:var(--coral)}

/* v12: page backdrops */
.page-head.photo{position:relative;color:#fff;padding:104px 0 88px;background-color:#1d2440;background-position:center;background-size:cover;background-repeat:no-repeat}
.page-head.photo::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,28,52,.86) 0%,rgba(24,28,52,.72) 50%,rgba(24,28,52,.35) 100%)}
.page-head.photo .wrap{position:relative}
.page-head.photo h1{color:#fff}
.page-head.photo p{color:#E3E5F2}
.page-head.photo a{color:#FEB190}
.bg-services{background-image:url(bg-services.jpg)}
.bg-about{background-image:url(bg-about.jpg)}
.bg-contact{background-image:url(bg-contact.jpg)}
.bg-partners{background-image:url(bg-partners.jpg)}
.bg-404{background-image:url(bg-404.jpg)}
@media(max-width:720px){
  .page-head.photo{padding:72px 0 56px}
  .page-head.photo::before{background:rgba(24,28,52,.74)}
  .bg-services{background-image:url(bg-services-m.jpg)}
  .bg-about{background-image:url(bg-about-m.jpg)}
  .bg-contact{background-image:url(bg-contact-m.jpg)}
  .bg-partners{background-image:url(bg-partners-m.jpg)}
  .bg-404{background-image:url(bg-404-m.jpg)}
}

/* v12: partners page */
.muted{color:var(--muted)}
.small{font-size:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stat{border-left:3px solid var(--coral);padding:6px 0 6px 18px}
.stat b{display:block;font-family:"Questrial",sans-serif;font-weight:400;font-size:34px;color:var(--indigo-dark);line-height:1.1}
.stat span{color:var(--muted);font-size:15px}
.table-wrap{overflow-x:auto}
.fleet{width:100%;border-collapse:collapse;font-size:16px}
.fleet th{text-align:left;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--magenta);font-weight:400;padding:10px 12px;border-bottom:2px solid var(--line)}
.fleet td{padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.fleet td:last-child{white-space:nowrap}
.track{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.track li{padding:14px 0;border-bottom:1px solid var(--line)}
.track strong{display:block;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--magenta);font-weight:400;margin-bottom:2px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px}
.gallery img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:12px}
@media(max-width:900px){.grid-3,.stats{grid-template-columns:1fr 1fr}.track{grid-template-columns:1fr}}
@media(max-width:720px){.grid-3,.stats,.gallery{grid-template-columns:1fr}.nav{gap:0}}
@media(max-width:960px){
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;width:100%}
  .nav .login{width:auto;margin-top:8px}
}

/* v14: combined services */
.stats-4{grid-template-columns:repeat(4,1fr)}
.track.one{grid-template-columns:1fr}
@media(max-width:900px){.stats-4{grid-template-columns:1fr 1fr}}

/* v16: home steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.step .num{display:block;font-family:"Questrial",sans-serif;font-size:15px;letter-spacing:2px;color:var(--coral);margin-bottom:8px}
.step p{color:var(--muted);font-size:16px;margin:0}
@media(max-width:900px){.steps{grid-template-columns:1fr}}
.steps-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.steps-4{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.steps-4{grid-template-columns:1fr}}