:root {
  color-scheme: dark;
  --ark-bg: #07090c;
  --ark-bg-2: #0c111b;
  --ark-surface: rgba(12, 16, 24, 0.72);
  --ark-surface-strong: rgba(12, 16, 24, 0.9);
  --ark-stroke: rgba(255, 255, 255, 0.08);
  --ark-stroke-strong: rgba(255, 255, 255, 0.16);
  --ark-text: #f7f8fb;
  --ark-text-muted: rgba(247, 248, 251, 0.65);
  --ark-accent: #5bd6ff;
  --ark-accent-2: #9aa8ff;
  --ark-gold: #d6b46a;
  --ark-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --ark-radius-lg: 22px;
  --ark-radius-md: 16px;
  --ark-transition: 0.35s cubic-bezier(0.2, 0.7, 0.2, 1);
}

body.ark-premium {
  font-family: "Manrope", sans-serif;
  color: var(--ark-text);
  background: radial-gradient(1200px 600px at 20% 10%, rgba(91, 214, 255, 0.08), transparent 60%),
    radial-gradient(900px 500px at 80% 15%, rgba(154, 168, 255, 0.06), transparent 55%),
    linear-gradient(180deg, var(--ark-bg) 0%, var(--ark-bg-2) 100%);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.ark-premium h1,
body.ark-premium h2,
body.ark-premium h3,
body.ark-premium h4,
body.ark-premium h5,
body.ark-premium h6 {
  font-family: "Space Grotesk", "Manrope", sans-serif;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

body.ark-premium .font-space {
  font-family: "Space Grotesk", "Manrope", sans-serif;
}

body.ark-premium a {
  text-decoration: none;
}

body.ark-premium a:hover {
  color: var(--ark-text);
}

body.ark-premium :focus-visible {
  outline: 2px solid var(--ark-accent);
  outline-offset: 3px;
  border-radius: 6px;
}

body.ark-premium p {
  line-height: 1.75;
}

body.ark-premium nav {
  background: var(--ark-surface);
  border: 1px solid var(--ark-stroke);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(24px);
}

body.ark-premium .nav-link,
body.ark-premium .nav-links a {
  position: relative;
  transition: color var(--ark-transition), transform var(--ark-transition);
}

body.ark-premium .nav-link:hover,
body.ark-premium .nav-links a:hover {
  color: #fff;
  transform: translateY(-2px);
}

body.ark-premium .nav-link::after,
body.ark-premium .nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ark-accent), var(--ark-accent-2));
  transition: width var(--ark-transition);
}

body.ark-premium .nav-link:hover::after,
body.ark-premium .nav-links a:hover::after {
  width: 100%;
}

body.ark-premium .cta-btn,
body.ark-premium .btn,
body.ark-premium .redirect-btn,
body.ark-premium .primary-btn,
body.ark-premium button.cta-btn {
  border-radius: 999px;
  padding: 0.9rem 1.7rem;
  min-height: 48px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.1;
  touch-action: manipulation;
  transition: transform var(--ark-transition), box-shadow var(--ark-transition), border-color var(--ark-transition), background var(--ark-transition);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

body.ark-premium .cta-btn:hover,
body.ark-premium .btn:hover,
body.ark-premium .redirect-btn:hover,
body.ark-premium .primary-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

body.ark-premium .cta-primary,
body.ark-premium .btn-primary,
body.ark-premium .redirect-btn {
  background: linear-gradient(135deg, var(--ark-accent), var(--ark-accent-2));
  color: #0a0f16;
  border: 1px solid transparent;
}

body.ark-premium .cta-secondary,
body.ark-premium .btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--ark-stroke-strong);
  color: var(--ark-text);
}

body.ark-premium .card,
body.ark-premium .tool-card,
body.ark-premium .portfolio-card,
body.ark-premium .window-card,
body.ark-premium .subbrand-card,
body.ark-premium .cert-card,
body.ark-premium .contact-card,
body.ark-premium .team-card,
body.ark-premium .redirect-section {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--ark-stroke);
  border-radius: var(--ark-radius-lg);
  backdrop-filter: blur(16px);
  box-shadow: var(--ark-shadow);
  transition: transform var(--ark-transition), box-shadow var(--ark-transition), border-color var(--ark-transition);
}

body.ark-premium .card:hover,
body.ark-premium .tool-card:hover,
body.ark-premium .portfolio-card:hover,
body.ark-premium .window-card:hover,
body.ark-premium .subbrand-card:hover,
body.ark-premium .cert-card:hover,
body.ark-premium .contact-card:hover,
body.ark-premium .team-card:hover,
body.ark-premium .redirect-section:hover {
  transform: translateY(-6px);
  border-color: var(--ark-stroke-strong);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
}

body.ark-premium .card-icon,
body.ark-premium .tool-icon {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--ark-stroke);
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

body.ark-premium .card-title,
body.ark-premium .tool-card h3,
body.ark-premium .contact-card h3 {
  letter-spacing: -0.01em;
}

body.ark-premium .review-card {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

body.ark-premium .review-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

body.ark-premium .review-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(91, 214, 255, 0.25), rgba(154, 168, 255, 0.25));
  border: 1px solid var(--ark-stroke-strong);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}

body.ark-premium .review-avatar svg {
  width: 60%;
  height: 60%;
  fill: rgba(255, 255, 255, 0.7);
  stroke: rgba(255, 255, 255, 0.4);
  stroke-width: 2;
}

body.ark-premium .review-stars {
  display: flex;
  gap: 0.35rem;
  color: var(--ark-gold);
  font-size: 0.95rem;
  align-items: center;
}

body.ark-premium .review-score {
  margin-left: 0.4rem;
  font-size: 0.85rem;
  color: var(--ark-text-muted);
  font-weight: 600;
}

body.ark-premium .team-avatar svg {
  width: 60%;
  height: 60%;
  fill: rgba(255, 255, 255, 0.7);
  stroke: rgba(255, 255, 255, 0.4);
  stroke-width: 2;
}

body.ark-premium .section,
body.ark-premium section.section {
  padding-inline: clamp(1.5rem, 4vw, 3rem);
  padding-block: clamp(4rem, 7vw, 7rem);
}

body.ark-premium .section-header {
  max-width: 1100px;
  margin-inline: auto;
}

body.ark-premium .section-title {
  font-size: clamp(2rem, 3.6vw, 3.3rem);
}

body.ark-premium .section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.7;
}

body.ark-premium .hero-subtitle,
body.ark-premium .hero p {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--ark-text-muted);
}

body.ark-premium .hero-title,
body.ark-premium .hero h1 {
  letter-spacing: -0.025em;
}

body.ark-premium .grid-2,
body.ark-premium .grid-3,
body.ark-premium .grid-4 {
  gap: clamp(1.5rem, 3vw, 2.8rem);
}

body.ark-premium .section-title h2,
body.ark-premium .section-title,
body.ark-premium .section-header h2,
body.ark-premium .section-header .section-title {
  text-transform: none;
}

body.ark-premium .section-subtitle,
body.ark-premium .card-desc,
body.ark-premium .tool-card p,
body.ark-premium .contact-card p {
  color: var(--ark-text-muted);
}

body.ark-premium .hero-badge,
body.ark-premium .hero-badge span {
  letter-spacing: 0.28em;
}

body.ark-premium .audio-alert {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: rgba(10, 10, 10, 0.88);
  color: #fff;
  padding: 14px 18px;
  border-radius: 14px;
  display: flex;
  gap: 12px;
  align-items: center;
  z-index: 9999;
  font-size: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}

body.ark-premium .audio-alert button {
  background: #fff;
  color: #0a0f16;
  border: none;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  transition: transform var(--ark-transition), box-shadow var(--ark-transition);
}

body.ark-premium .audio-alert button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

body.ark-premium #spline-bg {
  position: fixed !important;
  top: 50% !important;
  left: 50% !important;
  width: 120vw !important;
  height: 120vh !important;
  transform: translate(-50%, -50%) !important;
  z-index: -1 !important;
  pointer-events: none !important;
  opacity: 1 !important;
  filter: none !important;
}

@media (max-width: 900px) {
  body.ark-premium nav {
    width: calc(100% - 1.5rem);
  }

  body.ark-premium .cta-btn,
  body.ark-premium .btn,
  body.ark-premium .redirect-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  body.ark-premium .audio-alert {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  body.ark-premium .section,
  body.ark-premium section.section {
    padding-block: 3.5rem;
  }

  body.ark-premium .hero-title,
  body.ark-premium .hero h1 {
    letter-spacing: -0.01em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}