:root {
  --blue: #075fbe;
  --blue-dark: #063f87;
  --navy: #071322;
  --ink: #101828;
  --muted: #667085;
  --line: #e6edf5;
  --soft: #f4f8fc;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(16, 24, 40, .12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
}
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.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; }
.hidden { display: none; }

.site-header {
  height: 102px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(24px, 5vw, 60px);
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 700;
  letter-spacing: -.05em;
  color: #0c111d;
}
.brand-mark { color: var(--blue); display: grid; place-items: center; }
.main-nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 38px); font-size: 15px; font-weight: 500; }
.main-nav a { color: #121826; padding: 10px 0; position: relative; }
.main-nav a:not(.button)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--blue-dark); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 28px;
  border-radius: 8px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: #fff !important;
  font-weight: 700;
  box-shadow: 0 14px 28px rgba(7, 95, 190, .25);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(7, 95, 190, .32); }
.button-small { min-height: 46px; padding-inline: 24px !important; }
.button-ghost { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.55); box-shadow: none; }
.nav-toggle { display: none; border: 0; background: none; padding: 8px; }
.nav-toggle span:not(.sr-only) { display: block; width: 26px; height: 2px; background: var(--ink); margin: 6px 0; }

.hero { min-height: 580px; position: relative; display: grid; align-items: center; overflow: hidden; }
.hero-bg, .hero-overlay { position: absolute; inset: 0; }
.hero-bg {
  background-image: url('assets/hero-grid-work.jpg');
  background-size: cover;
  background-position: center right;
  transform: scale(1.02);
}
.hero-overlay {
  background: linear-gradient(90deg, rgba(4, 14, 25, .96) 0%, rgba(4, 14, 25, .82) 32%, rgba(4, 14, 25, .42) 62%, rgba(4, 14, 25, .08) 100%);
}
.hero-content { position: relative; z-index: 1; color: #fff; padding-block: 80px; }
.eyebrow { color: var(--blue); font-weight: 800; letter-spacing: .02em; margin: 0 0 10px; }
.hero .eyebrow { color: #8fc4ff; }
h1 { font-size: clamp(48px, 7.5vw, 88px); line-height: .98; letter-spacing: -.055em; max-width: 670px; margin: 0; }
.hero-text { font-size: clamp(18px, 2.1vw, 24px); max-width: 620px; margin: 28px 0 30px; color: rgba(255,255,255,.92); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.section { padding: clamp(64px, 8vw, 96px) 0; }
.section-heading { margin-bottom: 46px; }
.section-heading.narrow { max-width: 760px; }
h2 { font-size: clamp(34px, 4.8vw, 50px); line-height: 1.12; letter-spacing: -.04em; margin: 0 0 10px; color: #101828; }
.section-heading p { max-width: 790px; margin: 0; font-size: 18px; color: #374151; }

.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.benefit-card { padding: 20px 16px; }
.icon { width: 96px; height: 96px; margin: 0 auto 22px; color: var(--blue); }
.icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
h3 { margin: 0 0 10px; font-size: 18px; line-height: 1.3; letter-spacing: -.02em; }
.benefit-card p { margin: 0 auto; max-width: 220px; color: #242933; }

.method { background: linear-gradient(180deg, #f6faff 0%, #eef5fb 100%); }
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; padding-top: 4px; }
.timeline::before { content:""; position: absolute; top: 24px; left: 44px; right: 44px; height: 2px; background: var(--blue); opacity: .75; }
.step { position: relative; padding: 0 18px; text-align: center; }
.step span {
  width: 48px; height: 48px; display: grid; place-items: center; margin: 0 auto 22px;
  border-radius: 50%; background: var(--blue); color: #fff; font-size: 22px; font-weight: 800; position: relative; z-index: 1;
}
.step p { margin: 0; color: #252a33; }

.split { display: grid; grid-template-columns: 1fr 1fr; min-height: 445px; }
.split-copy { padding: clamp(54px, 8vw, 86px) clamp(32px, 6vw, 76px); display: grid; align-items: center; }
.split-copy > div { max-width: 640px; margin-left: auto; }
.split-copy .eyebrow { display: none; }
.split-copy p { font-size: 18px; color: #374151; margin: 0 0 24px; }
.check-list { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 14px; }
.check-list li { position: relative; padding-left: 36px; font-weight: 500; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: -2px; color: var(--blue); font-size: 22px; font-weight: 800; }
.split-image { background-image: url('assets/cables-worksite.jpg'); background-size: cover; background-position: center; min-height: 445px; }

.solutions { background: #fff; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.solution-grid article { padding: 28px; border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 16px 50px rgba(16, 24, 40, .06); background: #fff; }
.solution-grid strong { display: block; font-size: 19px; margin-bottom: 8px; }
.solution-grid span { color: var(--muted); }

.cta { padding: 78px 0; background: radial-gradient(circle at 15% 0%, #0b73d1 0, transparent 32%), linear-gradient(135deg, #05428f 0%, #071d3d 100%); color: #fff; }
.cta-inner { display: grid; grid-template-columns: .9fr 1fr; align-items: center; gap: 44px; }
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,.86); font-size: 18px; max-width: 560px; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 22px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 22px; box-shadow: var(--shadow); }
.contact-form label { display: grid; gap: 7px; font-size: 13px; font-weight: 700; color: rgba(255,255,255,.86); }
.contact-form label:nth-of-type(3), .contact-form button { grid-column: 1 / -1; }
.form-status { grid-column: 1 / -1; min-height: 24px; margin: -2px 0 0; color: rgba(255,255,255,.88); font-size: 14px; font-weight: 700; }
.form-status.error { color: #ffd1d1; }
input, textarea { width: 100%; border: 1px solid rgba(255,255,255,.16); border-radius: 12px; padding: 14px 15px; font: inherit; color: #fff; background: rgba(255,255,255,.12); outline: none; }
input::placeholder, textarea::placeholder { color: rgba(255,255,255,.58); }
input:focus, textarea:focus { border-color: rgba(255,255,255,.65); box-shadow: 0 0 0 4px rgba(255,255,255,.08); }
textarea { resize: vertical; }
.contact-form .button { background: #fff; color: var(--blue-dark) !important; border-color: #fff; box-shadow: none; }
.contact-form .button:disabled { cursor: wait; opacity: .72; transform: none; }

.footer { background: #061527; color: rgba(255,255,255,.72); padding: 34px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { color: #fff; font-size: 24px; }
.footer-links { display: flex; gap: 20px; }
.footer a:hover { color: #fff; }

@media (max-width: 980px) {
  .site-header { height: 84px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 84px; left: 0; right: 0; display: none; padding: 18px 24px 26px;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 16px 34px rgba(16,24,40,.12);
    flex-direction: column; align-items: stretch; gap: 8px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px; }
  .button-small { width: 100%; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; gap: 26px; }
  .timeline::before { left: 24px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .step { text-align: left; padding-left: 80px; min-height: 70px; }
  .step span { position: absolute; left: 0; top: 0; margin: 0; }
  .split, .cta-inner { grid-template-columns: 1fr; }
  .split-copy > div { margin-left: 0; }
  .solution-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 32px, 1120px); }
  .site-header { padding-inline: 18px; }
  .brand { font-size: 27px; }
  .hero { min-height: 620px; }
  .hero-overlay { background: linear-gradient(90deg, rgba(4,14,25,.95), rgba(4,14,25,.72)); }
  .hero-actions .button { width: 100%; }
  .benefit-grid, .contact-form { grid-template-columns: 1fr; }
  .section { padding: 58px 0; }
  .split-copy { padding-inline: 24px; }
  .footer-inner { display: grid; }
}