/* ---------- Tokens ---------- */
:root {
  --bg: #05070f;
  --bg-alt: #090d1d;
  --surface: #10162e;
  --surface-2: #161d3d;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e9ecfb;
  --text-dim: #a2a9cc;
  --text-faint: #6c7399;
  --accent: #5b8cff;
  --accent-2: #9b6bff;
  --accent-cyan: #35d6d0;
  --gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-glow: 0 0 0 1px var(--border), 0 20px 60px -20px rgba(91, 140, 255, 0.25);
  --container: 1140px;
  --font-heading: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; color: var(--text-dim); }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

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

.section { padding: 120px 0; position: relative; }

.eyebrow {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 14px;
}

h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); color: var(--text); }

.section-sub {
  max-width: 620px;
  font-size: 1.05rem;
  color: var(--text-dim);
  margin-bottom: 56px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 10px 16px;
  z-index: 999;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Starfield ---------- */
.starfield {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--bg);
  pointer-events: none;
}
.starfield::before,
.starfield::after {
  content: "";
  position: absolute;
  inset: 0;
  background-repeat: repeat;
  opacity: 0.9;
}
.star-layer {
  position: absolute;
  inset: 0;
  background-repeat: repeat;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-body);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 30px -8px rgba(139, 107, 255, 0.6);
}
.btn-primary:hover { box-shadow: 0 12px 34px -6px rgba(139, 107, 255, 0.75); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(255,255,255,0.05); border-color: var(--accent); }

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(5, 7, 15, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  background: rgba(5, 7, 15, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  margin-right: auto;
}
.brand-mark { width: 30px; height: 30px; object-fit: contain; }

.main-nav {
  display: flex;
  gap: 28px;
}
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 200px 0 160px;
  overflow: hidden;
  isolation: isolate;
}

.orbit-ring {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 50%;
  z-index: -1;
}
.orbit-ring-1 {
  width: 900px; height: 900px;
  top: -420px; right: -280px;
  border-color: rgba(91,140,255,0.18);
  animation: spin 90s linear infinite;
}
.orbit-ring-1::before {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 16px 4px var(--accent-cyan);
  top: 50%; left: -5px;
}
.orbit-ring-2 {
  width: 620px; height: 620px;
  top: -260px; right: -160px;
  border-color: rgba(155,107,255,0.18);
  animation: spin 60s linear infinite reverse;
}

@keyframes spin { to { transform: rotate(360deg); } }

.hero-inner { max-width: 760px; }

.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4rem);
  background: linear-gradient(180deg, #ffffff 0%, #c9d0f5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  max-width: 560px;
  color: var(--text-dim);
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Cards / Services ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-alt) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-glow);
}

.card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(91, 140, 255, 0.12);
  color: var(--accent-cyan);
  margin-bottom: 20px;
}
.card-icon svg { width: 22px; height: 22px; }

.card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- About / Pillars ---------- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pillar {
  border-top: 1px solid var(--border-strong);
  padding-top: 24px;
}
.pillar-index {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.pillar h3 { font-size: 1.2rem; margin-bottom: 10px; }
.pillar p { font-size: 0.95rem; }

/* ---------- Process / Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.step-num {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { font-size: 0.92rem; margin-bottom: 0; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  padding: 100px 0;
  position: relative;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 24px;
  margin: 0 auto;
  max-width: var(--container);
  border-radius: 28px;
  background:
    radial-gradient(600px 220px at 15% 20%, rgba(91,140,255,0.25), transparent 60%),
    radial-gradient(600px 220px at 85% 80%, rgba(155,107,255,0.25), transparent 60%),
    var(--surface);
  border: 1px solid var(--border-strong);
  z-index: -1;
}
.cta-banner-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 80px 24px;
}
.cta-banner-inner h2 { margin: 0; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-email {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  margin-top: 12px;
}
.contact-email:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 500;
}
.contact-form input,
.contact-form textarea {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  background: var(--bg-alt);
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "brand nav email"
    "tagline nav ."
    "copy copy copy";
  align-items: center;
  row-gap: 20px;
}
.footer-inner .brand { grid-area: brand; margin-right: 0; }
.footer-tagline { grid-area: tagline; font-size: 0.88rem; color: var(--text-faint); margin: 0; }
.footer-nav { grid-area: nav; display: flex; gap: 24px; justify-content: center; }
.footer-nav a { font-size: 0.9rem; color: var(--text-dim); }
.footer-nav a:hover { color: var(--text); }
.footer-email { grid-area: email; font-size: 0.9rem; color: var(--text-dim); justify-self: end; }
.footer-email:hover { color: var(--accent-cyan); }
.footer-copy {
  grid-area: copy;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--text-faint);
  text-align: center;
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 90;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--gradient); border-color: transparent; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner {
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "tagline"
      "nav"
      "email"
      "copy";
    text-align: center;
  }
  .footer-nav { justify-content: center; }
  .footer-email { justify-self: center; }
}

@media (max-width: 720px) {
  .main-nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .header-inner.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 76px;
    left: 0; right: 0;
    background: rgba(5,7,15,0.97);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 18px;
  }
  .header-inner.nav-open .nav-cta {
    display: inline-flex;
    position: absolute;
    top: 260px;
    left: 24px;
  }
  .card-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 160px 0 100px; }
  .section { padding: 80px 0; }
  .orbit-ring-1, .orbit-ring-2 { display: none; }
}