:root {
  --bg: #070b10;
  --bg-soft: #0d131b;
  --panel: rgba(16, 24, 34, 0.78);
  --panel-strong: #111a25;
  --line: rgba(176, 194, 214, 0.16);
  --text: #f3f6f9;
  --muted: #a6b2bf;
  --accent: #b7ff4a;
  --accent-soft: rgba(183, 255, 74, 0.12);
  --steel: #7fa2c4;
  --max: 1180px;
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 10%, rgba(62, 93, 127, 0.2), transparent 35%),
    radial-gradient(circle at 10% 70%, rgba(183, 255, 74, 0.05), transparent 25%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .12;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
  z-index: -1;
}

.site-header {
  width: min(calc(100% - 32px), var(--max));
  margin: 18px auto 0;
  padding: 10px 16px;
  position: sticky;
  top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 11, 16, .76);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 14px;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-mark {
  width: clamp(160px, 20vw, 232px);
  height: 58px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.logo-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(127, 162, 196, .18));
}
.site-nav { display: flex; align-items: center; gap: 26px; font-size: .92rem; color: var(--muted); }
.site-nav a:hover { color: var(--text); }
.nav-cta { color: var(--text) !important; border: 1px solid var(--line); padding: 9px 14px; border-radius: 10px; }
.menu-toggle { display: none; background: none; border: 0; color: var(--text); }

.section-pad { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 112px 0; }
.section-pad.compact { padding: 48px 0 96px; }
.eyebrow { color: var(--accent); font-size: .72rem; font-weight: 700; letter-spacing: .22em; margin: 0 0 18px; }

.hero { min-height: 720px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 64px; }
.hero h1, .section-heading h2, .positioning-card h2, .about-card h2, .contact-card h2 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0;
  line-height: 1.02;
  letter-spacing: -.04em;
}
.hero h1 { font-size: clamp(3.4rem, 7vw, 6.9rem); max-width: 760px; }
.hero h1 span { color: var(--accent); }
.hero-text { max-width: 680px; color: var(--muted); font-size: 1.14rem; margin: 28px 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.button { padding: 13px 18px; border-radius: 11px; font-weight: 600; border: 1px solid var(--line); }
.button.primary { background: var(--accent); color: #0a0e12; border-color: transparent; }
.button.secondary { background: rgba(255,255,255,.02); }
.hero-meta { display: flex; gap: 20px; margin-top: 34px; color: #c6d0da; font-size: .78rem; text-transform: uppercase; letter-spacing: .16em; }
.hero-meta span:not(:last-child)::after { content: "/"; margin-left: 20px; color: #4e5964; }

.hero-visual { display: grid; place-items: center; min-height: 460px; }
.scope {
  position: relative;
  width: min(460px, 90vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(127,162,196,.24);
  background: radial-gradient(circle, rgba(127,162,196,.06), transparent 62%);
  box-shadow: inset 0 0 80px rgba(127,162,196,.04), 0 0 120px rgba(127,162,196,.05);
}
.scope-ring { position: absolute; border: 1px solid rgba(127,162,196,.14); border-radius: 50%; inset: 12%; }
.scope-ring.ring-2 { inset: 28%; }
.scope-ring.ring-3 { inset: 43%; }
.scope-cross { position: absolute; background: rgba(127,162,196,.14); }
.cross-h { left: 8%; right: 8%; top: 50%; height: 1px; }
.cross-v { top: 8%; bottom: 8%; left: 50%; width: 1px; }
.primary-plane { position: absolute; left: 17%; right: 17%; top: 56%; height: 2px; background: linear-gradient(90deg, transparent, var(--steel), transparent); transform: rotate(-12deg); }
.opx-path { position: absolute; width: 56%; height: 56%; left: 21%; top: 18%; border: 2px solid transparent; border-top-color: var(--accent); border-right-color: var(--accent); border-radius: 50%; transform: rotate(25deg); filter: drop-shadow(0 0 8px rgba(183,255,74,.25)); }
.track-point { position: absolute; width: 9px; height: 9px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 0 6px rgba(183,255,74,.08), 0 0 18px rgba(183,255,74,.5); }
.p1 { left: 24%; top: 57%; }
.p2 { left: 51%; top: 26%; }
.p3 { right: 19%; top: 49%; }
.track-label { position: absolute; font-size: .58rem; letter-spacing: .18em; color: var(--muted); }
.label-a { left: 18%; top: 61%; transform: rotate(-12deg); }
.label-b { right: 18%; top: 38%; color: var(--accent); }

.positioning-card, .about-card, .contact-card {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(17,26,37,.88), rgba(10,16,23,.78));
  border-radius: var(--radius);
  box-shadow: 0 20px 80px rgba(0,0,0,.22);
}
.positioning-card { padding: 46px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: end; }
.positioning-card h2 { font-size: clamp(2.1rem, 4vw, 3.6rem); }
.positioning-card p:last-child { color: var(--muted); font-size: 1.08rem; margin: 0; }

.section-heading { max-width: 760px; margin-bottom: 46px; }
.section-heading.narrow { max-width: 840px; }
.section-heading h2 { font-size: clamp(2.4rem, 5vw, 4.5rem); }
.section-heading > p:last-child { color: var(--muted); font-size: 1.05rem; }
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.service-card {
  min-height: 260px;
  padding: 30px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(14, 21, 30, .72);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: rgba(183,255,74,.42); background: rgba(17,26,37,.9); }
.service-index { color: var(--accent); font-family: "Space Grotesk"; font-size: .78rem; }
.service-card h3 { font-family: "Space Grotesk"; font-size: 1.55rem; margin: 62px 0 12px; }
.service-card p { color: var(--muted); margin: 0; }

.approach { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.approach-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.approach-item { display: flex; gap: 18px; padding-top: 22px; border-top: 1px solid rgba(183,255,74,.28); }
.approach-item > span { color: var(--accent); font-size: .78rem; }
.approach-item h3 { font-size: 1.08rem; margin: 0 0 8px; }
.approach-item p { color: var(--muted); margin: 0; font-size: .94rem; }

.about-card { padding: 46px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 72px; }
.about-card h2 { font-size: clamp(2.3rem, 4.5vw, 4rem); margin-bottom: 24px; }
.about-main p:not(.eyebrow) { color: var(--muted); max-width: 680px; }
.credential-list { display: grid; gap: 12px; align-content: start; }
.credential-list div { padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.018); }
.credential-list strong { display: block; color: var(--accent); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 5px; }
.credential-list span { color: #dce4eb; }

.contact-card { padding: 46px; display: flex; justify-content: space-between; align-items: end; gap: 42px; }
.contact-card h2 { font-size: clamp(2rem, 4vw, 3.5rem); max-width: 700px; }
.contact-card p:not(.eyebrow) { color: var(--muted); }
.contact-link { color: var(--accent); font-family: "Space Grotesk"; font-size: clamp(1rem, 2vw, 1.35rem); white-space: nowrap; }
.contact-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.site-footer { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 30px 0 46px; display: flex; justify-content: space-between; gap: 24px; color: var(--muted); border-top: 1px solid var(--line); font-size: .82rem; }
.site-footer div { display: flex; gap: 12px; }
.site-footer strong { color: var(--text); letter-spacing: .08em; }
.site-footer p { margin: 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 90px; }
  .hero-visual { min-height: 360px; }
  .positioning-card, .about-card { grid-template-columns: 1fr; gap: 30px; }
  .approach-grid { grid-template-columns: 1fr; }
  .contact-card { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 680px) {
  .section-pad { width: min(calc(100% - 28px), var(--max)); padding: 82px 0; }
  .site-header { width: calc(100% - 20px); padding: 9px 12px; }
  .brand-mark { width: 148px; height: 42px; }
  .menu-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 12px;
    background: rgba(7,11,16,.96);
    border: 1px solid var(--line);
    border-radius: 14px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 10px; }
  .service-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(3rem, 14vw, 4.8rem); }
  .hero-meta { gap: 10px; flex-wrap: wrap; }
  .hero-meta span:not(:last-child)::after { margin-left: 10px; }
  .positioning-card, .about-card, .contact-card { padding: 28px; }
  .site-footer { flex-direction: column; }
  .contact-link { white-space: normal; overflow-wrap: anywhere; }
}