:root {
  --canvas: #050505;
  --surface: #0F0F12;
  --accent: #1D57FE;
  --accent-dim: rgba(29, 87, 254, 0.4);
  --text-primary: #FFFFFF;
  --text-secondary: #9CA3AF;
  --border: #1F2028;

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --container: 1180px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.02em;
}

p { margin: 0; color: var(--text-secondary); }
a { color: inherit; text-decoration: none; }

.accent { color: var(--accent); }

/* ---------- background grid overlay ---------- */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  box-shadow: 0 0 24px rgba(29, 87, 254, 0.55);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--accent);
  box-shadow: 0 0 15px rgba(29, 87, 254, 0.4);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.6rem 1.3rem;
  font-size: 0.85rem;
}
.btn-ghost:hover {
  border-color: var(--accent);
  box-shadow: 0 0 15px rgba(29, 87, 254, 0.4);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(5, 5, 5, 0.72);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo-mark {
  display: block;
  height: 28px;
  width: auto;
}

.nav-desktop {
  display: flex;
  gap: 2.2rem;
  flex: 1;
  justify-content: center;
}
.nav-desktop a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.25s var(--ease);
}
.nav-desktop a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.nav-desktop a:hover { color: var(--text-primary); }
.nav-desktop a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 0 2rem 1.5rem;
  gap: 1.1rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
  padding-top: 1.2rem;
}
.nav-mobile a { color: var(--text-secondary); font-size: 0.95rem; }
.nav-mobile.open { display: flex; }
.nav-mobile .btn { margin-top: 0.5rem; align-self: flex-start; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  max-width: var(--container);
  margin: 0 auto;
}

#nodeCanvas {
  position: absolute;
  inset: -4rem -2rem;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; max-width: 720px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 2rem;
}
.eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  margin-bottom: 1.6rem;
}

.hero-sub {
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 2.4rem;
}

.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

.scroll-cue {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 46px;
  background: var(--border);
  overflow: hidden;
}
.scroll-cue span {
  display: block;
  width: 100%;
  height: 40%;
  background: var(--accent);
  animation: scrollcue 1.8s ease-in-out infinite;
}
@keyframes scrollcue {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(250%); }
}

/* ---------- section shared ---------- */
section { position: relative; z-index: 1; padding: 7rem 2rem; }
.section-head { max-width: var(--container); margin: 0 auto 3.5rem; }
.section-tag {
  display: block;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.9rem;
  font-family: var(--font-display);
}
.section-head h2, .about-text h2, .contact-info h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
}

/* ---------- services ---------- */
.services-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.service-card {
  background: var(--surface);
  padding: 2.6rem 2.4rem;
  position: relative;
  overflow: hidden;
  transition: background 0.4s var(--ease);
}
.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, rgba(29,87,254,0.14), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.service-card:hover::before { opacity: 1; }
.service-card:hover { background: #121217; }

.card-index {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.4rem;
}
.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.8rem;
  position: relative;
}
.service-card p {
  font-size: 0.94rem;
  max-width: 380px;
  position: relative;
}
.card-line {
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.5s var(--ease);
}
.service-card:hover .card-line { width: 100%; }

/* ---------- about ---------- */
.about-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-text p { margin-top: 1.4rem; font-size: 1.02rem; max-width: 480px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.stat {
  border-left: 1px solid var(--border);
  padding-left: 1.2rem;
}
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 0.4rem;
}

/* ---------- stack marquee ---------- */
.stack-marquee {
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.stack-track {
  display: flex;
  gap: 3.5rem;
  width: max-content;
  animation: marquee 28s linear infinite;
}
.stack-track span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-secondary);
  white-space: nowrap;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- contact ---------- */
.contact-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
}
.contact-info p { margin-top: 1.2rem; max-width: 420px; font-size: 1.02rem; }
.contact-details {
  list-style: none;
  padding: 0;
  margin: 2.4rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.contact-details li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  font-size: 0.94rem;
}
.contact-details .label { color: var(--text-secondary); }
.contact-details a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.hidden-field { position: absolute; left: -9999px; }
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.field input, .field textarea, .field select {
  background: #0A0A0D;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.75rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.94rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 87, 254, 0.15);
}
.field textarea { resize: vertical; }
.form-submit { margin-top: 0.4rem; }
.form-note { font-size: 0.85rem; color: var(--text-secondary); min-height: 1.2em; }
.form-note.success { color: #4ADE80; }
.form-note.error { color: #F87171; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 3rem 2rem; }
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-logo { display: block; height: 22px; width: auto; }
.footer-copy { font-size: 0.85rem; }
.footer-links { display: flex; gap: 1.6rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-secondary); transition: color 0.25s var(--ease); }
.footer-links a:hover { color: var(--accent); }

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- legal pages ---------- */
.legal-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 8rem 2rem 6rem;
  position: relative;
  z-index: 1;
}
.legal-page h1 { font-size: 2.2rem; margin-bottom: 0.5rem; }
.legal-page .updated { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 2.5rem; display: block; }
.legal-page h2 { font-size: 1.2rem; margin: 2.4rem 0 0.9rem; }
.legal-page p, .legal-page li { color: var(--text-secondary); font-size: 0.96rem; margin-bottom: 0.9rem; }
.legal-page a { color: var(--accent); }
.legal-page .back-link { display: inline-block; margin-bottom: 3rem; color: var(--text-secondary); font-size: 0.88rem; }
.legal-page .back-link:hover { color: var(--accent); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats { grid-template-columns: 1fr; gap: 1.2rem; }
}

@media (max-width: 760px) {
  .nav-desktop, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 480px) {
  .header-inner { padding: 1rem 1.25rem; }
  .hero { padding: 5rem 1.25rem 3rem; }
  section { padding: 4.5rem 1.25rem; }
  .contact-form { padding: 1.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}