:root {
  --sea-blue: #0078b8;
  --sea-blue-2: #009bd6;
  --deep-blue: #06336e;
  --navy: #061b3a;
  --ink: #10223f;
  --muted: #5f6f86;
  --gold: #d6a334;
  --gold-2: #f0c969;
  --ice: #f4f9ff;
  --sky: #e9f6ff;
  --white: #ffffff;
  --line: #dbe7f3;
  --shadow-soft: 0 18px 45px rgba(6, 27, 58, .10);
  --shadow-strong: 0 28px 80px rgba(6, 27, 58, .18);
  --radius: 24px;
  --max: 1220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--sea-blue); text-decoration: none; transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease; }
a:hover { color: var(--deep-blue); }
img { max-width: 100%; height: auto; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(219,231,243,.9);
  box-shadow: 0 8px 30px rgba(6,27,58,.04);
}
.header-inner {
  min-height: 96px;
  display: grid;
  grid-template-columns: 255px 1fr auto;
  align-items: center;
  gap: 30px;
}
.logo { display: inline-flex; align-items: center; }
.logo img { width: 232px; display: block; filter: drop-shadow(0 10px 18px rgba(6,27,58,.06)); }
.main-nav { justify-self: center; }
.main-nav ul.menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav li { list-style: none; margin: 0; padding: 0; }
.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 13px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .055em;
  border-radius: 999px;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--sea-blue), var(--gold));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}
.main-nav a:hover,
.main-nav .current-menu-item > a {
  color: var(--sea-blue);
  background: rgba(0,120,184,.06);
}
.main-nav a:hover::after,
.main-nav .current-menu-item > a::after { transform: scaleX(1); }
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 16px;
  padding: 14px 22px;
  background: linear-gradient(135deg, var(--deep-blue), #082a59);
  color: #fff !important;
  font-weight: 850;
  box-shadow: 0 14px 30px rgba(6,51,110,.22);
  border: 1px solid rgba(255,255,255,.1);
}
.header-cta:hover { transform: translateY(-1px); box-shadow: 0 18px 42px rgba(6,51,110,.26); }
.menu-toggle {
  display: none;
  border: 0;
  background: var(--deep-blue);
  color: #fff;
  padding: 11px 14px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 92% 12%, rgba(214,163,52,.18), transparent 26%),
    radial-gradient(circle at 3% 8%, rgba(0,155,214,.18), transparent 28%),
    linear-gradient(118deg, #ffffff 0%, #f5fbff 42%, #eaf6ff 100%);
  border-bottom: 1px solid rgba(219,231,243,.8);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .8;
  background-image:
    radial-gradient(circle at 22% 34%, rgba(0,120,184,.16) 0 1.5px, transparent 2.5px),
    radial-gradient(circle at 76% 62%, rgba(214,163,52,.20) 0 1.5px, transparent 2.5px),
    linear-gradient(115deg, transparent 0 28%, rgba(255,255,255,.72) 28% 29%, transparent 29% 100%);
  background-size: 86px 86px, 120px 120px, auto;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -22%;
  width: 62%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,120,184,.16), transparent 62%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(410px, .86fr);
  align-items: center;
  gap: 58px;
  padding: 78px 0 84px;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: .10em;
  font-size: 13px;
  margin-bottom: 18px;
}
.kicker::before { content: ""; width: 34px; height: 2px; background: linear-gradient(90deg, var(--gold), var(--sea-blue)); border-radius: 999px; }
h1, h2, h3 { color: var(--deep-blue); line-height: 1.06; margin: 0 0 18px; }
h1 {
  font-size: clamp(48px, 6.3vw, 82px);
  letter-spacing: -.055em;
  max-width: 760px;
}
h2 { font-size: clamp(32px, 4.2vw, 52px); text-align: center; letter-spacing: -.035em; }
h3 { font-size: 22px; letter-spacing: -.018em; }
.lead { font-size: clamp(18px, 2vw, 22px); color: #263e63; max-width: 670px; margin: 0 0 30px; }
.actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 52px;
  border-radius: 15px;
  padding: 14px 23px;
  font-weight: 900;
  border: 2px solid var(--deep-blue);
  box-shadow: 0 12px 30px rgba(6,27,58,.08);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--deep-blue), #064587); color: #fff !important; }
.btn-secondary { color: var(--deep-blue); background: rgba(255,255,255,.82); }
.hero-card {
  position: relative;
  isolation: isolate;
  padding: 16px;
  border-radius: 36px;
  background: linear-gradient(135deg, rgba(255,255,255,.88), rgba(255,255,255,.55));
  border: 1px solid rgba(255,255,255,.82);
  box-shadow: var(--shadow-strong);
  transform: rotate(-1.2deg);
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: -26px;
  z-index: -1;
  border-radius: 45px;
  background:
    linear-gradient(135deg, transparent 0 25%, rgba(214,163,52,.22) 25% 26%, transparent 26% 100%),
    radial-gradient(circle at 78% 18%, rgba(0,120,184,.20), transparent 32%);
}
.hero-card::after {
  content: "SEASTAR";
  position: absolute;
  right: 24px;
  bottom: 22px;
  color: rgba(255,255,255,.86);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .18em;
  text-shadow: 0 1px 8px rgba(6,27,58,.18);
}
.hero-card img {
  width: 100%;
  min-height: 330px;
  object-fit: cover;
  display: block;
  border-radius: 28px;
  box-shadow: 0 20px 52px rgba(6,27,58,.18);
}

.section { position: relative; padding: 88px 0; }
.section.alt { background: linear-gradient(180deg, #f6fbff 0%, #fff 100%); }
.section.dark {
  color: #fff;
  background:
    radial-gradient(circle at 78% 22%, rgba(0,155,214,.35), transparent 42%),
    radial-gradient(circle at 12% 74%, rgba(214,163,52,.18), transparent 28%),
    linear-gradient(135deg, #061b3a, #06336e 70%, #052a58);
  overflow: hidden;
}
.section.dark::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image: radial-gradient(circle, rgba(255,255,255,.9) 0 1px, transparent 1.6px);
  background-size: 48px 48px;
}
.section.dark > .container { position: relative; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section-intro { max-width: 850px; margin: 0 auto 42px; text-align: center; color: var(--muted); font-size: 18px; }
.section h2::after, .page-hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin: 18px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--sea-blue), var(--gold));
}
.content h2::after { display: none; }
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }
.card {
  position: relative;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(219,231,243,.95);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: 0 10px 28px rgba(6,27,58,.055);
  overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--sea-blue), var(--gold));
  opacity: 0;
  transition: opacity .22s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); border-color: rgba(0,120,184,.25); }
.card:hover::before { opacity: 1; }
.card p { color: var(--muted); margin-bottom: 0; }
.icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(0,120,184,.11), rgba(214,163,52,.10));
  color: var(--sea-blue);
  font-size: 30px;
  box-shadow: inset 0 0 0 1px rgba(0,120,184,.10);
}
.service-card { text-align: center; }
.service-card .icon { margin-left: auto; margin-right: auto; }
.service-card h3 { font-size: 18px; text-transform: uppercase; letter-spacing: .02em; }
.project-card { overflow: hidden; padding: 0; background: #fff; }
.project-card::before { display: none; }
.project-media {
  position: relative;
  height: 225px;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  color: #fff;
  font-size: 30px;
  font-weight: 950;
  letter-spacing: .08em;
  text-shadow: 0 2px 14px rgba(6,27,58,.32);
  background:
    linear-gradient(180deg, rgba(6,27,58,.08), rgba(6,27,58,.65)),
    radial-gradient(circle at 80% 18%, rgba(240,201,105,.55), transparent 22%),
    linear-gradient(135deg, #0a5f9d, #062a59 65%, #061b3a);
}
.project-card:nth-child(1) .project-media { background: linear-gradient(180deg, rgba(6,27,58,.08), rgba(6,27,58,.62)), radial-gradient(circle at 78% 20%, rgba(255,255,255,.65), transparent 16%), linear-gradient(135deg, #eaf6ff, #0a7eb8 50%, #06336e); }
.project-card:nth-child(2) .project-media { background: linear-gradient(180deg, rgba(6,27,58,.05), rgba(6,27,58,.72)), radial-gradient(circle at 20% 80%, rgba(214,163,52,.46), transparent 18%), linear-gradient(135deg, #071e3d, #174d7b 54%, #d6a334); }
.project-card:nth-child(3) .project-media { background: linear-gradient(180deg, rgba(6,27,58,.02), rgba(6,27,58,.68)), radial-gradient(circle at 76% 22%, rgba(255,255,255,.5), transparent 15%), linear-gradient(135deg, #0a7eb8, #e2f2fb 44%, #06336e); }
.project-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.65) 0 1px, transparent 1.6px), linear-gradient(130deg, transparent 0 55%, rgba(255,255,255,.12) 55% 56%, transparent 56% 100%);
  background-size: 44px 44px, auto;
  opacity: .6;
}
.project-media > * { position: relative; }
.project-body { padding: 26px; }
.split { display: grid; grid-template-columns: 1fr .9fr; gap: 50px; align-items: center; }
.panel {
  position: relative;
  background: linear-gradient(135deg, #fff, #f7fbff);
  border-radius: 32px;
  padding: 38px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(219,231,243,.9);
}
.panel::before {
  content: "";
  position: absolute;
  inset: auto 34px 100% auto;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(214,163,52,.24), transparent 60%);
}
.value-card {
  background: rgba(255,255,255,.075);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 22px;
  padding: 26px;
  min-height: 175px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.value-card h3 { font-size: 19px; }
.value-card p { color: rgba(255,255,255,.84); margin-bottom: 0; }

.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 13% 20%, rgba(0,155,214,.16), transparent 28%),
    radial-gradient(circle at 82% 32%, rgba(214,163,52,.14), transparent 24%),
    linear-gradient(135deg, #f7fbff, #fff 58%, #eef8ff);
  padding: 92px 0;
  text-align: center;
  border-bottom: 1px solid rgba(219,231,243,.8);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .45;
  background-image: radial-gradient(circle, rgba(0,120,184,.22) 0 1.2px, transparent 1.8px);
  background-size: 54px 54px;
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(42px, 5.2vw, 68px); letter-spacing: -.048em; }
.content { max-width: 980px; margin: 0 auto; }
.content h2 { text-align: left; margin-top: 42px; }
.content p { color: #263e63; }
.content ul { padding-left: 22px; }
.content li { margin-bottom: 8px; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: start; }
.form {
  background: #fff;
  border: 1px solid rgba(219,231,243,.96);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow-soft);
}
.form label { display: block; font-weight: 800; margin-bottom: 7px; color: var(--deep-blue); }
.form input, .form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fbfdff;
  border-radius: 14px;
  padding: 14px 15px;
  font: inherit;
  margin-bottom: 17px;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.form input:focus, .form textarea:focus { border-color: rgba(0,120,184,.55); box-shadow: 0 0 0 4px rgba(0,120,184,.10); background: #fff; }
.form textarea { min-height: 155px; resize: vertical; }
.notice { padding: 14px 16px; border-radius: 14px; margin-bottom: 16px; }
.notice.ok { background: #e8f7ef; color: #126735; }
.notice.err { background: #fff0f0; color: #9a1e1e; }
.small { font-size: 14px; color: var(--muted); }

.footer { background: #fff; border-top: 1px solid var(--line); }
.footer-main {
  padding: 52px 0;
  display: grid;
  grid-template-columns: 1.25fr .9fr 1fr .9fr;
  gap: 34px;
}
.footer-logo img { width: 210px; margin-bottom: 12px; }
.footer h4 { color: var(--deep-blue); margin: 0 0 14px; text-transform: uppercase; letter-spacing: .065em; font-size: 14px; }
.footer p, .footer li { color: var(--muted); margin: 0 0 8px; }
.footer ul { padding: 0; margin: 0; list-style: none; }
.footer a { color: #255d91; }
.footer-bottom {
  background: linear-gradient(135deg, var(--navy), var(--deep-blue));
  color: rgba(255,255,255,.85);
  font-size: 14px;
  padding: 18px 0;
}
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-bottom a { color: #fff; margin-left: 18px; }

@media (max-width: 1120px) {
  .header-inner { grid-template-columns: 220px auto auto; gap: 18px; }
  .logo img { width: 205px; }
  .main-nav a { font-size: 12px; padding-left: 9px; padding-right: 9px; }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 920px) {
  .header-inner { display: flex; min-height: 82px; }
  .menu-toggle { display: inline-flex; margin-left: auto; }
  .main-nav {
    display: none;
    position: absolute;
    left: 20px;
    right: 20px;
    top: 92px;
    background: rgba(255,255,255,.98);
    border: 1px solid var(--line);
    padding: 18px;
    border-radius: 20px;
    box-shadow: var(--shadow-strong);
  }
  .main-nav.open { display: block; }
  .main-nav ul.menu { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav a { display: flex; min-height: 42px; justify-content: center; }
  .header-cta { display: none; }
  .hero-inner, .split, .contact-grid { grid-template-columns: 1fr; }
  .hero-inner { min-height: auto; padding: 58px 0 64px; }
  .hero-card { transform: none; }
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 30px, var(--max)); }
  .logo img { width: 172px; }
  h1 { font-size: clamp(40px, 12vw, 54px); }
  .hero-card { display: none; }
  .section { padding: 64px 0; }
  .grid-6, .grid-5, .grid-4, .grid-3 { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; }
  .footer-bottom a { margin: 0 12px 0 0; }
}