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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: #050816;
  color: #e5e7eb;
  line-height: 1.5;
}

.iv-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.iv-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(3, 7, 18, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(55, 65, 81, 0.7);
}

.iv-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.iv-logo {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #e5e7eb;
  font-size: 0.95rem;
  text-decoration: none;
}

.iv-logo span {
  color: #38bdf8;
  margin-left: 0.15rem;
}

.iv-nav {
  display: flex;
  align-items: center;
}

.iv-nav a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 1.25rem;
  transition: color 0.15s ease;
}

.iv-nav a:hover {
  color: #e5e7eb;
}

.iv-nav-dropdown {
  position: relative;
  margin-left: 1.25rem;
}

.iv-nav-dropbtn {
  background: none;
  border: none;
  color: #9ca3af;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.iv-nav-dropbtn::after {
  content: "▾";
  font-size: 0.7rem;
}

.iv-nav-dropbtn:hover {
  color: #e5e7eb;
}

.iv-nav-dropdown-menu {
  position: absolute;
  top: 150%;
  left: 0;
  min-width: 160px;
  padding: 0.4rem 0;
  border-radius: 0.5rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: #020617;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.85);
  display: none;
  z-index: 50;
}

.iv-nav-dropdown-menu a {
  display: block;
  padding: 0.4rem 0.9rem;
  margin: 0;
  font-size: 0.85rem;
}

.iv-nav-dropdown-menu a:hover {
  background-color: rgba(15, 23, 42, 0.9);
}

.iv-nav-dropdown.open .iv-nav-dropdown-menu {
  display: block;
}

.iv-hero {
  padding: 4rem 0 3rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 55%),
              radial-gradient(circle at top right, rgba(129, 140, 248, 0.18), transparent 55%),
              #020617;
  border-bottom: 1px solid rgba(31, 41, 55, 0.9);
}

.iv-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 2.5rem;
  align-items: center;
}

.iv-hero-text h1 {
  font-size: clamp(2rem, 3.1vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: #f9fafb;
}

.iv-hero-text p {
  color: #d1d5db;
  max-width: 34rem;
}

.iv-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 0.75rem;
}

.iv-hero-footnote {
  font-size: 0.8rem;
  color: #9ca3af;
}

.iv-hero-card {
  border-radius: 0.75rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.1), transparent 60%), #020617;
  padding: 1.5rem;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.9);
}

.iv-hero-card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.iv-hero-card ul {
  list-style: none;
}

.iv-hero-card li {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 0.5rem;
}

.iv-hero-card li strong {
  color: #e5e7eb;
}

.iv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.iv-btn-primary {
  background: linear-gradient(135deg, #38bdf8, #4f46e5);
  color: #0b1120;
}

.iv-btn-primary:hover {
  filter: brightness(1.05);
}

.iv-btn-secondary {
  background: transparent;
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.7);
}

.iv-btn-secondary:hover {
  border-color: #e5e7eb;
}

.iv-section {
  padding: 3.5rem 0;
}

.iv-section-alt {
  padding: 3.5rem 0;
  background-color: #020617;
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.iv-section-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.iv-section-intro {
  color: #9ca3af;
  max-width: 40rem;
  margin-bottom: 1.75rem;
}

.iv-grid {
  display: grid;
  gap: 1.5rem;
}

.iv-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.iv-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.iv-card {
  border-radius: 0.75rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: #020617;
  padding: 1.5rem;
}

.iv-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.iv-card p {
  font-size: 0.9rem;
  color: #d1d5db;
}

.iv-product-card ul {
  margin-top: 0.75rem;
  list-style: disc;
  padding-left: 1.25rem;
}

.iv-product-card li {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 0.3rem;
}

.iv-link {
  display: inline-flex;
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: #38bdf8;
  text-decoration: none;
}

.iv-link:hover {
  text-decoration: underline;
}

.iv-list {
  list-style: none;
}

.iv-list li {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 0.5rem;
}

.iv-callout {
  border-radius: 0.75rem;
  border: 1px solid rgba(56, 189, 248, 0.7);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 60%), #020617;
  padding: 1.35rem;
}

.iv-callout h3 {
  margin-bottom: 0.5rem;
}

.iv-callout-note {
  font-size: 0.85rem;
  color: #9ca3af;
  margin-top: 0.4rem;
}

.iv-contact {
  border-radius: 0.75rem;
  border: 1px dashed rgba(55, 65, 81, 0.9);
  background: #020617;
  padding: 1.5rem;
}

.iv-contact p {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 0.5rem;
}

.iv-contact a {
  color: #38bdf8;
  text-decoration: none;
}

.iv-contact a:hover {
  text-decoration: underline;
}

.iv-footer {
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  padding: 1.25rem 0 1.75rem;
  background-color: #020617;
}

.iv-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: #6b7280;
}

.iv-footer-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.iv-footer-links a {
  color: #9ca3af;
  text-decoration: none;
}

.iv-footer-links a:hover {
  color: #e5e7eb;
}

@media (max-width: 900px) {
  .iv-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .iv-grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }

  .iv-grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .iv-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    height: auto;
    padding: 0.75rem 0;
  }

  .iv-nav a {
    margin-left: 0.75rem;
    font-size: 0.8rem;
  }
}