:root {
  --bg-dark: #060b1a;
  --bg-medium: #0f1733;
  --bg-light: #111d3d;
  --accent: #1cd1d6;
  --accent-warm: #f4ae3d;
  --text-light: #f9fbff;
  --text-muted: rgba(249, 251, 255, 0.7);
  --shadow: 0 20px 45px rgba(6, 11, 26, 0.4);
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 12px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at top, rgba(15, 23, 51, 0.95), rgba(6, 11, 26, 1));
  color: var(--text-light);
}

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

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}

.container {
  width: min(1100px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(6, 11, 26, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 1.1rem;
}

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

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease, transform 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--accent);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--accent), #5bf3ff);
  color: var(--bg-dark);
  font-weight: 600;
  box-shadow: 0 12px 25px rgba(28, 209, 214, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 30px rgba(28, 209, 214, 0.45);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-light);
  box-shadow: none;
}

.btn-outline:hover {
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(17, 29, 61, 0.6);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-light);
  border-radius: 999px;
}

.hero {
  position: relative;
  padding: 7rem 0 5rem;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(28, 209, 214, 0.35), transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(244, 174, 61, 0.25), transparent 50%);
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-text,
.hero-visual {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-actions {
  margin: 1.75rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
}

.metric {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-visual {
  position: relative;
}

.vr-mask {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-badge {
  position: absolute;
  bottom: -1.5rem;
  right: 1.5rem;
  background: rgba(17, 29, 61, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem 1.3rem;
  border-radius: var(--radius-md);
  box-shadow: 0 15px 35px rgba(6, 11, 26, 0.35);
}

.hero-badge span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.hero-badge strong {
  display: block;
  margin-top: 0.4rem;
}

.section {
  padding: 5rem 0;
}

.section h2 {
  font-size: 2.3rem;
  margin-bottom: 1.5rem;
}

.section p {
  color: var(--text-muted);
  line-height: 1.7;
}

.grid-two {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: start;
}

.card {
  background: linear-gradient(160deg, rgba(17, 29, 61, 0.9), rgba(6, 11, 26, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.07);
  padding: 1.8rem;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 35px rgba(6, 11, 26, 0.35);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.card h3 {
  margin-top: 0;
}

.card ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
}

.card li {
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.card li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 0.55rem;
}

.about-cards {
  display: grid;
  gap: 1.5rem;
}

.solutions-grid,
.impact-grid,
.team-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.technology {
  background: linear-gradient(180deg, rgba(17, 29, 61, 0.65), rgba(6, 11, 26, 0.95));
}

.tech-panel {
  background: rgba(6, 11, 26, 0.8);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.panel-header {
  display: flex;
  gap: 0.6rem;
  padding: 1rem;
  background: rgba(15, 23, 51, 0.9);
}

.panel-header .led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.panel-body {
  padding: 2rem;
}

.panel-body ul {
  margin: 1rem 0 1.5rem;
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.panel-body li {
  margin-bottom: 0.8rem;
}

.panel-body .note {
  font-size: 0.85rem;
  color: var(--accent-warm);
}

.impact {
  background: linear-gradient(160deg, rgba(6, 11, 26, 0.6), rgba(15, 23, 51, 0.9));
}

.impact-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: rgba(6, 11, 26, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.team .card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  margin-bottom: 1rem;
}

.team .bio {
  font-size: 0.9rem;
}

.cta {
  background: linear-gradient(135deg, rgba(28, 209, 214, 0.1), rgba(244, 174, 61, 0.08));
}

.cta-content {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 1.2rem;
  background: rgba(6, 11, 26, 0.8);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 0.5rem;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(8, 15, 35, 0.9);
  color: var(--text-light);
  font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.site-footer {
  padding: 3rem 0;
  background: rgba(6, 11, 26, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer-links h4 {
  margin-bottom: 0.5rem;
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

@media (max-width: 820px) {
  .main-nav {
    position: absolute;
    right: 2rem;
    top: 4.5rem;
    flex-direction: column;
    gap: 1rem;
    background: rgba(6, 11, 26, 0.98);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    transform: translateY(-30px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 540px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-badge {
    position: static;
    margin-top: 1.5rem;
  }
}