:root {
  --bg: #07131f;
  --bg-2: #0b1f33;
  --ink: #eef6fb;
  --muted: #9bb0c3;
  --line: rgba(148, 193, 214, 0.22);
  --accent: #2ec4b6;
  --accent-2: #7ad7ff;
  --danger: #ff6b6b;
  --ok: #3ddc97;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --radius: 14px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: radial-gradient(1200px 700px at 80% -10%, rgba(46, 196, 182, 0.18), transparent 55%),
              radial-gradient(900px 600px at -10% 20%, rgba(122, 215, 255, 0.12), transparent 50%),
              linear-gradient(160deg, var(--bg), var(--bg-2) 55%, #081828);
  line-height: 1.55;
}

body[data-theme="egorelov"] {
  --bg: #0a1620;
  --bg-2: #122433;
  --ink: #eef6f8;
  --muted: #95b0bd;
  --line: rgba(62, 196, 176, 0.22);
  --accent: #3ec4b0;
  --accent-2: #7ec8e3;
  --font-display: "Manrope", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  background: radial-gradient(1000px 620px at 88% -8%, rgba(62, 196, 176, 0.18), transparent 52%),
              radial-gradient(820px 520px at -5% 28%, rgba(126, 200, 227, 0.12), transparent 55%),
              linear-gradient(165deg, #08141c, #122433 58%, #0c1a24);
}

.bg-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  opacity: 0.45;
  z-index: 0;
}

.wrap {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(7, 19, 31, 0.55);
  border-bottom: 1px solid transparent;
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.15rem;
}

.nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover { color: var(--ink); }

.nav-cta {
  color: var(--bg) !important;
  background: var(--accent);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-weight: 600;
}

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  padding: 3rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
  font-weight: 600;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); max-width: 14ch; }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1.2rem; margin-bottom: 0.35rem; }

.lede {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 34ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0.85rem 1.35rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: #062018;
}

body[data-theme="egorelov"] .btn-primary { color: #06241f; }

.dash-frame { opacity: 0.45; color: var(--accent-2); }
.dash-chip { opacity: 0.5; color: var(--accent); }
.dash-chip.d2 { color: var(--accent-2); animation: pulse 4s ease-in-out infinite; }
.dash-chip.d3 { opacity: 0.35; }
.bar { opacity: 0.35; transform-origin: bottom; animation: barGrow 3.6s ease-in-out infinite; }
.bar.d2 { animation-delay: 0.35s; opacity: 0.5; color: var(--accent-2); }
.bar.d3 { animation-delay: 0.7s; opacity: 0.28; }
@keyframes barGrow {
  0%, 100% { transform: scaleY(0.88); opacity: 0.28; }
  50% { transform: scaleY(1); opacity: 0.55; }
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero-art {
  display: flex;
  justify-content: center;
}

.net-svg {
  width: min(100%, 520px);
  color: var(--accent);
  opacity: 0.9;
}

.net-line {
  stroke-dasharray: 8 10;
  animation: dash 18s linear infinite;
  opacity: 0.55;
}

.net-line.d2 { animation-duration: 24s; color: var(--accent-2); }
.net-line.d3 { animation-duration: 30s; opacity: 0.35; }

.net-node {
  fill: var(--accent);
  animation: pulse 3.2s ease-in-out infinite;
}
.net-node.d2 { animation-delay: 0.4s; fill: var(--accent-2); }
.net-node.d3 { animation-delay: 0.8s; }

@keyframes dash {
  to { stroke-dashoffset: -240; }
}
@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.25); }
}

.section { padding: 5.5rem 0; }
.section-alt {
  border-block: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}
.section-head p {
  color: var(--muted);
  margin: 0.85rem 0 0;
  font-size: 1.05rem;
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.service-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
}
.service-item:last-child { border-bottom: 1px solid var(--line); }
.service-item p { margin: 0; color: var(--muted); }
.idx {
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.about-grid, .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.meta {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}
.meta div {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.meta dt {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.meta dd { margin: 0; }
.meta a { color: var(--accent-2); }

.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0,0,0,0.18);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
}
.contact-form span {
  font-size: 0.85rem;
  color: var(--muted);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: var(--ink);
  padding: 0.8rem 0.9rem;
  font: inherit;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  border-color: transparent;
}

.hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-status {
  min-height: 1.4em;
  margin: 0;
  font-size: 0.95rem;
}
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--danger); }

.footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer strong { color: var(--ink); display: block; margin-bottom: 0.35rem; }
.footer p { margin: 0; }

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 860px) {
  .hero-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 2rem; }
  .nav a:not(.nav-cta) { display: none; }
  .hero-art { order: -1; }
  .net-svg { width: min(100%, 360px); }
}