:root {
  --bg: #030611;
  --bg-glow: #0c1530;
  --electric-blue: #00c9ff;
  --violet: #7a4bff;
  --neon: #ffd166;
  --text: #e9f2ff;
  --muted: #9aa9c7;
  --card: rgba(7, 11, 25, 0.8);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, rgba(0, 167, 255, 0.25), transparent 45%),
    linear-gradient(160deg, #040612 0%, #050913 45%, #02030c 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(122, 75, 255, 0.25), transparent 50%);
  opacity: 0.5;
  pointer-events: none;
  z-index: -2;
}

main {
  width: min(1200px, 92vw);
  margin: 120px auto 0;
  display: flex;
  flex-direction: column;
  gap: 96px;
}

.cosmic-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  z-index: -3;
}

#particleCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(24px, 5vw, 72px);
  background: linear-gradient(180deg, rgba(2, 4, 10, 0.95), rgba(2, 4, 10, 0.4));
  backdrop-filter: blur(16px);
  z-index: 10;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--electric-blue);
}

.main-nav .cta {
  padding: 10px 18px;
  border: 1px solid rgba(0, 201, 255, 0.5);
  border-radius: 999px;
  color: var(--electric-blue);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 28px;
  height: 2px;
  background: var(--text);
}

section {
  display: grid;
  gap: 32px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
  padding-top: 40px;
}

.hero__content h1 {
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  line-height: 1.1;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--neon);
}

.subhead {
  color: var(--muted);
  max-width: 52ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 24px 0;
}

.hero__actions .primary,
.hero__actions .ghost,
.cta__actions .primary,
.cta__actions .ghost,
.contact-form button {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary {
  background: linear-gradient(120deg, var(--electric-blue), var(--violet));
  color: #010204;
  box-shadow: 0 10px 30px rgba(0, 201, 255, 0.35);
}

.ghost {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text);
}

.hero__actions a:hover,
.cta__actions a:hover,
.contact-form button:hover {
  transform: translateY(-2px);
}

.hero__metrics {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
}

.hero__metrics strong {
  font-size: 2rem;
  color: var(--electric-blue);
}

.hero__visual {
  text-align: center;
  background: var(--card);
  border-radius: 24px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.schematic {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto 16px;
}

.schematic__ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 201, 255, 0.5);
  border-radius: 50%;
  animation: pulse 6s infinite linear;
}

.schematic__ring:nth-child(2) {
  inset: 20px;
  border-color: rgba(122, 75, 255, 0.6);
  animation-delay: 1.5s;
}

.schematic__bolt {
  position: absolute;
  inset: 50px;
  border-radius: 16px;
  background: linear-gradient(180deg, var(--neon), var(--electric-blue));
  filter: drop-shadow(0 0 18px rgba(255, 255, 255, 0.4));
  clip-path: polygon(40% 0, 65% 0, 50% 45%, 75% 45%, 30% 100%, 45% 55%, 25% 55%);
  animation: flicker 1.2s ease-in-out infinite;
}

.section-heading h2 {
  font-size: clamp(1.9rem, 3vw, 2.8rem);
}

.section-heading p {
  color: var(--muted);
  max-width: 60ch;
}

.services .service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.service-grid article {
  padding: 32px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.service-grid ul {
  margin-top: 12px;
  list-style: none;
  color: var(--muted);
}

.service-grid li::before {
  content: "⚡";
  margin-right: 8px;
  color: var(--electric-blue);
}

.about {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
}

.about__stats {
  margin-top: 24px;
  border-left: 2px solid rgba(255, 255, 255, 0.15);
  padding-left: 24px;
  display: grid;
  gap: 12px;
}

.about__timeline {
  border-radius: 24px;
  padding: 32px;
  border: 1px solid rgba(0, 201, 255, 0.2);
  background: rgba(4, 8, 20, 0.8);
  display: grid;
  gap: 18px;
}

.projects .project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.project-gallery article {
  padding: 28px;
  border-radius: 18px;
  border: 1px solid rgba(122, 75, 255, 0.3);
  background: rgba(4, 9, 18, 0.85);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

figure {
  background: var(--card);
  padding: 28px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

blockquote {
  font-size: 1.1rem;
  color: var(--muted);
}

.cta {
  background: linear-gradient(135deg, rgba(0, 201, 255, 0.15), rgba(122, 75, 255, 0.15));
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 28px;
  padding: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  padding-bottom: 80px;
}

.contact ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.contact a {
  color: var(--electric-blue);
  text-decoration: none;
}

.contact-form {
  background: var(--card);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 16px;
}

.contact-form.sent {
  border-color: rgba(0, 201, 255, 0.5);
  box-shadow: 0 0 25px rgba(0, 201, 255, 0.15);
}

.contact-form label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(2, 4, 10, 0.6);
  color: var(--text);
  font-size: 1rem;
}

.contact-form button {
  cursor: pointer;
  border: none;
  width: fit-content;
  background: linear-gradient(120deg, var(--violet), var(--electric-blue));
  color: #010204;
}

.form-footnote {
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  padding: 32px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted);
}

.site-footer a {
  color: var(--electric-blue);
  text-decoration: none;
}

@keyframes pulse {
  0% {
    transform: rotate(0deg) scale(1);
    opacity: 0.8;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    transform: rotate(360deg) scale(1.05);
    opacity: 0.8;
  }
}

@keyframes flicker {
  0%,
  100% {
    opacity: 0.95;
    filter: drop-shadow(0 0 12px rgba(0, 201, 255, 0.7));
  }
  50% {
    opacity: 0.6;
    filter: drop-shadow(0 0 3px rgba(0, 201, 255, 0.3));
  }
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 0 auto auto 0;
    flex-direction: column;
    background: rgba(3, 6, 17, 0.95);
    padding: 80px 24px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    width: 100%;
    height: 100vh;
    justify-content: center;
    gap: 32px;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .menu-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  main {
    margin-top: 100px;
    gap: 72px;
  }

  .hero__actions,
  .cta__actions {
    flex-direction: column;
    width: 100%;
  }

  .primary,
  .ghost {
    width: 100%;
  }
}