/* =============================================
   BITReS – Static CSS (Flask/Jinja2 export)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:             hsl(216, 28%, 7%);
  --fg:             hsl(210, 20%, 95%);
  --card:           hsl(216, 24%, 11%);
  --primary:        hsl(210, 60%, 39%);
  --secondary:      hsl(216, 20%, 16%);
  --secondary-fg:   hsl(210, 20%, 85%);
  --muted:          hsl(216, 18%, 14%);
  --muted-fg:       hsl(215, 12%, 55%);
  --accent:         hsl(200, 70%, 50%);
  --border:         hsl(216, 18%, 18%);
  --destructive:    hsl(0, 84%, 60%);
  --neon:           hsl(200, 100%, 60%);
  --cyber-green:    hsl(160, 100%, 50%);
  --radius:         0.75rem;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { font-family: 'Space Grotesk', system-ui, sans-serif; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* --- Utility: fonts --- */
.font-mono { font-family: 'JetBrains Mono', monospace; }

/* --- Utility: gradient-text --- */
.gradient-text {
  background: linear-gradient(to right, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease-in-out infinite;
}

/* --- Utility: glow --- */
.text-glow {
  text-shadow: 0 0 20px hsl(210 60% 39% / 0.5), 0 0 40px hsl(210 60% 39% / 0.2);
}
.text-glow-strong {
  text-shadow: 0 0 10px hsl(200 100% 60% / 0.8), 0 0 40px hsl(200 100% 60% / 0.4), 0 0 80px hsl(200 100% 60% / 0.2);
}
.box-glow-strong {
  box-shadow: 0 0 30px hsl(200 100% 60% / 0.2), 0 0 80px hsl(200 100% 60% / 0.1), inset 0 1px 0 hsl(200 100% 60% / 0.1);
}

/* --- Utility: glass --- */
.glass-strong {
  background: hsla(216, 24%, 11%, 0.2);
  backdrop-filter: blur(64px);
  -webkit-backdrop-filter: blur(64px);
  border: 1px solid hsla(216, 18%, 18%, 0.2);
  box-shadow: inset 0 1px 0 hsl(200 100% 60% / 0.05), 0 0 40px hsl(216 28% 7% / 0.5);
}

/* --- Utility: border-glow (gradient border) --- */
.border-glow { position: relative; }
.border-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, hsl(200 100% 60% / 0.3), transparent 40%, transparent 60%, hsl(210 60% 39% / 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* --- Utility: backgrounds --- */
.grid-pattern {
  background-image:
    linear-gradient(hsl(200 100% 60% / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, hsl(200 100% 60% / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.dot-matrix {
  background-image: radial-gradient(hsl(200 100% 60% / 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* --- Utility: section padding --- */
.section-padding { padding: 6rem 1.5rem; }

/* --- Container --- */
.container { max-width: 1280px; margin: 0 auto; }
.container-md  { max-width: 1152px; margin: 0 auto; }
.container-sm  { max-width: 960px; margin: 0 auto; }

/* --- Section label --- */
.section-label {
  display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem;
}
.section-label-line {
  width: 2rem; height: 1px; background: var(--neon);
  flex-shrink: 0;
}
.section-label-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem; text-transform: uppercase;
  letter-spacing: 0.2em; color: var(--neon);
}

/* =============================================
   TOP BAR
   ============================================= */
.top-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 2rem;
  background: hsla(216, 28%, 7%, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid hsla(216, 18%, 18%, 0.3);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.5rem;
}
.top-bar-left {
  display: flex; align-items: center; gap: 1rem;
  font-size: 0.7rem; color: hsla(215, 12%, 55%, 0.6);
  font-family: 'JetBrains Mono', monospace;
}
.top-bar-right {
  display: none; align-items: center; gap: 0.375rem;
  font-size: 0.6rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215, 12%, 55%, 0.3); letter-spacing: 0.15em;
}
.top-link {
  display: flex; align-items: center; gap: 0.375rem;
  transition: color 0.3s;
}
.top-link:hover { color: var(--neon); }
.status-dot {
  width: 0.375rem; height: 0.375rem; border-radius: 50%;
  background: var(--cyber-green);
  animation: pulse 2s ease-in-out infinite;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed; top: 2rem; left: 0; right: 0; z-index: 40;
  transition: all 0.5s;
}
.navbar.scrolled {
  background: hsla(216, 24%, 11%, 0.2);
  backdrop-filter: blur(64px);
  -webkit-backdrop-filter: blur(64px);
  border-bottom: 1px solid hsla(216, 18%, 18%, 0.3);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between; height: 4rem;
}
.nav-logo img { height: 2rem; filter: brightness(0) invert(1); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500;
  color: hsla(215, 12%, 55%, 0.7);
  transition: color 0.3s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--neon);
  transition: width 0.3s;
}
.nav-links a:hover { color: var(--neon); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  font-size: 0.875rem; font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  background: hsla(200, 100%, 60%, 0.1);
  border: 1px solid hsla(200, 100%, 60%, 0.2);
  color: var(--neon) !important;
  padding: 0.5rem 1.25rem; border-radius: 0.5rem;
  transition: all 0.3s;
}
.nav-cta:hover {
  background: hsla(200, 100%, 60%, 0.2) !important;
  border-color: hsla(200, 100%, 60%, 0.4) !important;
}
.nav-cta::after { display: none !important; }
.nav-logout {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem;
  border-radius: 0.4rem;
  color: var(--muted-fg);
  border: 1px solid hsla(216, 18%, 22%, 0.6);
  transition: all 0.25s;
}
.nav-logout:hover {
  color: var(--destructive);
  border-color: hsla(0, 84%, 60%, 0.35);
  background: hsla(0, 84%, 60%, 0.08);
}
.nav-logout::after { display: none !important; }
.mobile-toggle {
  display: none; background: none; border: none; color: var(--fg); cursor: pointer;
}
.mobile-menu {
  display: none; flex-direction: column; gap: 1rem; padding: 1.5rem;
  background: hsla(216, 24%, 11%, 0.6);
  backdrop-filter: blur(64px);
  border-top: 1px solid hsla(216, 18%, 18%, 0.3);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 0.875rem; color: var(--muted-fg);
  transition: color 0.3s;
}
.mobile-menu a:hover { color: var(--neon); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 6rem; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.15; }
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, hsla(216,28%,7%,0.4), hsla(216,28%,7%,0.7), var(--bg));
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(hsl(200 100% 60% / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, hsl(200 100% 60% / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute; top: 25%; left: 50%; transform: translate(-50%, -50%);
  width: 800px; height: 800px; border-radius: 50%;
  background: hsla(200, 100%, 60%, 0.05);
  filter: blur(150px); pointer-events: none;
}
#hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; opacity: 0.6;
}
.hero-content {
  position: relative; z-index: 10;
  max-width: 1280px; margin: 0 auto;
  padding: 5rem 1.5rem; width: 100%;
}

/* Status badge */
.hero-badge {
  display: flex; justify-content: center; margin-bottom: 2rem;
}
.hero-badge-inner {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.375rem 1rem; border-radius: 9999px;
  border: 1px solid hsla(200, 100%, 60%, 0.2);
  background: hsla(200, 100%, 60%, 0.05);
  color: var(--neon);
  font-size: 0.65rem; font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.15em;
}

.hero-heading { text-align: center; margin-bottom: 5rem; }
.hero-heading h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700; margin-bottom: 1.5rem;
  line-height: 1.1; letter-spacing: -0.02em;
}
.hero-heading p {
  font-size: 1.125rem; color: var(--muted-fg);
  max-width: 640px; margin: 0 auto; line-height: 1.7;
}

/* Products grid */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; max-width: 1152px; margin: 0 auto; }
.product-card {
  position: relative;
  border-radius: 1rem; padding: 2rem;
  cursor: pointer; transition: all 0.7s;
}
.product-card:hover { box-shadow: 0 0 30px hsl(200 100% 60% / 0.2), 0 0 80px hsl(200 100% 60% / 0.1), inset 0 1px 0 hsl(200 100% 60% / 0.1); }

/* Corner accent */
.corner-accent {
  position: absolute; top: 0; right: 0;
  width: 4rem; height: 4rem; overflow: hidden;
  border-top-right-radius: 1rem;
  pointer-events: none;
}
.corner-accent::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 1px; height: 2rem;
  background: linear-gradient(to bottom, hsla(200,100%,60%,0.4), transparent);
}
.corner-accent::after {
  content: ''; position: absolute; top: 0; right: 0;
  width: 2rem; height: 1px;
  background: linear-gradient(to left, hsla(200,100%,60%,0.4), transparent);
}

/* Product stat */
.product-stat {
  position: absolute; top: 1.5rem; right: 1.5rem; text-align: right;
}
.product-stat-value {
  font-size: 1.5rem; font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; color: var(--neon);
  text-shadow: 0 0 10px hsl(200 100% 60% / 0.8), 0 0 40px hsl(200 100% 60% / 0.4);
}
.product-stat-label {
  font-size: 0.6rem; font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase; letter-spacing: 0.15em; color: var(--muted-fg);
}

.product-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem; }
.product-icon {
  width: 2.5rem; height: 2.5rem; border-radius: 0.5rem;
  background: hsla(200, 100%, 60%, 0.1);
  border: 1px solid hsla(200, 100%, 60%, 0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--neon); transition: background 0.5s;
}
.product-card:hover .product-icon { background: hsla(200, 100%, 60%, 0.2); }
.product-name {
  font-size: 1.25rem; font-weight: 700; color: var(--neon);
  font-family: 'JetBrains Mono', monospace; letter-spacing: 0.1em;
  text-shadow: 0 0 20px hsl(200 100% 60% / 0.5);
}
.product-divider {
  width: 3rem; height: 1px;
  background: linear-gradient(to right, hsla(200,100%,60%,0.4), transparent);
  margin-bottom: 1rem;
}
.product-tagline {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.15em; color: var(--muted-fg);
  font-family: 'JetBrains Mono', monospace; margin-bottom: 0.75rem;
}
.product-card p {
  font-size: 0.875rem; color: hsla(210, 20%, 85%, 0.7);
  line-height: 1.6; margin-bottom: 1.5rem;
}
.product-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 500; color: var(--neon);
  transition: gap 0.3s;
}
.product-card:hover .product-link { gap: 0.75rem; }

/* Scroll indicator */
.scroll-indicator {
  display: flex; justify-content: center; margin-top: 4rem;
}
.scroll-indicator-inner {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  color: hsla(215, 12%, 55%, 0.4);
}
.scroll-indicator-text {
  font-size: 0.6rem; font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase; letter-spacing: 0.2em;
}
.scroll-indicator-line {
  width: 1px; height: 2rem;
  background: linear-gradient(to bottom, hsla(200,100%,60%,0.3), transparent);
  animation: pulse 2s ease-in-out infinite;
}

/* =============================================
   WHY US
   ============================================= */
.why-section {
  position: relative; overflow: hidden;
  padding: 6rem 1.5rem;
}
.why-bg-dots {
  position: absolute; inset: 0; opacity: 0.5;
  background-image: radial-gradient(hsl(200 100% 60% / 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}
.why-bg-line-top {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.2), transparent);
}
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.why-card {
  position: relative;
  border-radius: 0.75rem; padding: 1.5rem;
  transition: all 0.7s; cursor: default;
}
.why-card:hover { box-shadow: 0 0 30px hsl(200 100% 60% / 0.2), 0 0 80px hsl(200 100% 60% / 0.1); }
.why-code {
  position: absolute; top: 0.75rem; right: 0.75rem;
  font-size: 0.55rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.3); letter-spacing: 0.15em;
}
.why-icon {
  width: 3rem; height: 3rem; border-radius: 0.5rem;
  background: hsla(200, 100%, 60%, 0.05);
  border: 1px solid hsla(200, 100%, 60%, 0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem; color: hsla(200, 100%, 60%, 0.8);
  transition: all 0.5s;
}
.why-card:hover .why-icon {
  background: hsla(200, 100%, 60%, 0.15);
  border-color: hsla(200, 100%, 60%, 0.3);
  color: var(--neon);
}
.why-card p { font-size: 0.875rem; font-weight: 500; color: hsla(210, 20%, 95%, 0.9); }
.why-card-line {
  position: absolute; bottom: 0; left: 1.5rem; right: 1.5rem;
  height: 1px;
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.1), transparent);
  transition: background 0.7s;
}
.why-card:hover .why-card-line {
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.3), transparent);
}

/* =============================================
   ADVANTAGES
   ============================================= */
.advantages-section {
  position: relative; overflow: hidden;
  padding: 6rem 1.5rem;
}
.advantages-bg {
  position: absolute; inset: 0; background: hsla(216, 20%, 16%, 0.2);
}
.advantages-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(hsl(200 100% 60% / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, hsl(200 100% 60% / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.advantages-bg-line-top, .advantages-bg-line-bottom {
  position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.2), transparent);
}
.advantages-bg-line-top { top: 0; }
.advantages-bg-line-bottom { bottom: 0; }
.advantages-glow {
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px; border-radius: 50%;
  background: hsla(210, 60%, 39%, 0.05); filter: blur(120px);
  pointer-events: none;
}
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.advantage-card {
  position: relative; overflow: hidden;
  border-radius: 1rem; padding: 2rem;
  transition: all 0.7s;
}
.advantage-card:hover { box-shadow: 0 0 30px hsl(200 100% 60% / 0.2), 0 0 80px hsl(200 100% 60% / 0.1); }
.advantage-metric {
  position: absolute; top: 1.5rem; right: 1.5rem; text-align: right;
}
.advantage-metric-value {
  font-size: 1.25rem; font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; color: hsla(200,100%,60%,0.6);
  transition: color 0.5s;
}
.advantage-card:hover .advantage-metric-value { color: var(--neon); }
.advantage-metric-label {
  font-size: 0.55rem; font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase; letter-spacing: 0.15em;
  color: hsla(215,12%,55%,0.4);
}
.advantage-icon {
  width: 3.5rem; height: 3.5rem; border-radius: 0.75rem;
  background: hsla(200,100%,60%,0.05);
  border: 1px solid hsla(200,100%,60%,0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: hsla(200,100%,60%,0.7);
  transition: all 0.5s;
}
.advantage-card:hover .advantage-icon {
  background: hsla(200,100%,60%,0.15);
  border-color: hsla(200,100%,60%,0.3);
  color: var(--neon);
}
.advantage-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.75rem; }
.advantage-card p { font-size: 0.875rem; color: var(--muted-fg); line-height: 1.6; }
.advantage-bottom-bar {
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  border-bottom-left-radius: 1rem; border-bottom-right-radius: 1rem;
  overflow: hidden;
}
.advantage-bottom-bar-fill {
  height: 100%; width: 0;
  background: linear-gradient(to right, hsla(200,100%,60%,0.5), var(--primary), hsla(200,100%,60%,0.5));
  transition: width 0.7s;
}
.advantage-card:hover .advantage-bottom-bar-fill { width: 100%; }

/* =============================================
   ARCHITECTURE
   ============================================= */
.architecture-section {
  position: relative; overflow: hidden;
  padding: 6rem 1.5rem;
}
.architecture-bg-grid {
  position: absolute; inset: 0; opacity: 0.4;
  background-image:
    linear-gradient(hsl(200 100% 60% / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, hsl(200 100% 60% / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.architecture-bg-line {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.2), transparent);
}
.arch-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.arch-card {
  position: relative; overflow: hidden;
  border-radius: 1rem; display: flex; flex-direction: column;
  transition: all 0.7s;
}
.arch-card:hover { box-shadow: 0 0 30px hsl(200 100% 60% / 0.2), 0 0 80px hsl(200 100% 60% / 0.1); }
.arch-card-inner { padding: 2.5rem 2.5rem; display: flex; flex-direction: column; flex: 1; }
.arch-icon {
  width: 3.5rem; height: 3.5rem; border-radius: 0.75rem;
  background: hsla(200,100%,60%,0.1);
  border: 1px solid hsla(200,100%,60%,0.2);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: var(--neon);
  transition: all 0.5s;
}
.arch-card:hover .arch-icon {
  background: hsla(200,100%,60%,0.2);
  border-color: hsla(200,100%,60%,0.3);
}
.arch-tag {
  font-size: 0.65rem; font-family: 'JetBrains Mono', monospace;
  font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.15em; color: var(--neon);
  margin-bottom: 0.75rem;
}
.arch-card h3 {
  font-size: 1.75rem; font-weight: 700; margin-bottom: 1rem;
}
.arch-card > .arch-card-inner > p {
  font-size: 0.9375rem; color: var(--muted-fg);
  line-height: 1.7; margin-bottom: 2rem;
}
.arch-features { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 2rem; flex: 1; }
.arch-features li { display: flex; align-items: center; gap: 0.75rem; }
.arch-features li span { font-size: 0.875rem; color: hsla(210,20%,95%,0.8); }
.check-icon { color: var(--cyber-green); flex-shrink: 0; }
.arch-divider {
  height: 1px;
  background: linear-gradient(to right, hsla(216,18%,18%,0.5), transparent);
  margin-bottom: 1.5rem;
}
.arch-cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 500; color: var(--neon);
  transition: gap 0.3s;
}
.arch-card:hover .arch-cta { gap: 0.75rem; }
.arch-bottom-bar {
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  border-bottom-left-radius: 1rem; border-bottom-right-radius: 1rem;
  overflow: hidden;
}
.arch-bottom-bar-fill {
  height: 100%; width: 0;
  background: linear-gradient(to right, hsla(200,100%,60%,0.5), var(--primary), hsla(200,100%,60%,0.5));
  transition: width 0.7s;
}
.arch-card:hover .arch-bottom-bar-fill { width: 100%; }

/* =============================================
   ABOUT
   ============================================= */
.about-section {
  position: relative; overflow: hidden;
  padding: 6rem 1.5rem;
}
.about-bg-dots {
  position: absolute; inset: 0; opacity: 0.3;
  background-image: radial-gradient(hsl(200 100% 60% / 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}
.about-bg-line {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(to right, transparent, hsla(200,100%,60%,0.2), transparent);
}
.about-card {
  border-radius: 1rem; overflow: hidden;
}
.about-terminal-bar {
  padding: 0.75rem 2rem;
  border-bottom: 1px solid hsla(216,18%,18%,0.3);
  display: flex; align-items: center; gap: 0.75rem;
}
.terminal-dots { display: flex; gap: 0.375rem; }
.terminal-dot {
  width: 0.625rem; height: 0.625rem; border-radius: 50%;
}
.terminal-dot-red   { background: hsla(0, 84%, 60%, 0.6); }
.terminal-dot-yellow { background: hsla(45, 100%, 50%, 0.6); }
.terminal-dot-green { background: hsla(160, 100%, 50%, 0.6); }
.terminal-url {
  font-size: 0.625rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.4); letter-spacing: 0.1em;
}
.about-body { padding: 2.5rem 3rem; }
.about-body p {
  color: var(--muted-fg); line-height: 1.75;
  font-size: 1rem; margin-bottom: 1.5rem;
}
.about-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-top: 2.5rem; }
.about-product {
  border-radius: 0.75rem; padding: 1.25rem;
  background: hsla(216,28%,7%,0.6);
  border: 1px solid hsla(216,18%,18%,0.3);
  transition: border-color 0.5s;
}
.about-product:hover { border-color: hsla(200,100%,60%,0.2); }
.about-product-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem;
}
.about-product-icon { color: hsla(200,100%,60%,0.6); transition: color 0.5s; }
.about-product:hover .about-product-icon { color: var(--neon); }
.about-product-status { display: flex; align-items: center; gap: 0.375rem; }
.about-product-status .status-dot { background: var(--cyber-green); }
.about-product-status-text {
  font-size: 0.55rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(160,100%,50%,0.7); letter-spacing: 0.15em;
}
.about-product h4 {
  font-weight: 600; color: var(--neon);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em; font-size: 0.875rem; margin-bottom: 0.25rem;
}
.about-product span { font-size: 0.75rem; color: var(--muted-fg); }

/* =============================================
   FOOTER
   ============================================= */
.footer {
  position: relative; overflow: hidden;
  border-top: 1px solid hsla(216,18%,18%,0.3);
  padding: 6rem 1.5rem;
}
.footer-bg-grid {
  position: absolute; inset: 0; opacity: 0.5;
  background-image:
    linear-gradient(hsl(200 100% 60% / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, hsl(200 100% 60% / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; margin-bottom: 4rem; }
.footer-logo { height: 2rem; filter: brightness(0) invert(1); margin-bottom: 1.5rem; }
.footer-grid p { font-size: 0.875rem; color: hsla(215,12%,55%,0.7); line-height: 1.6; }
.footer-status {
  margin-top: 1.5rem; display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.6rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.3); letter-spacing: 0.15em;
}
.footer-col-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem; text-transform: uppercase;
  letter-spacing: 0.15em; color: hsla(200,100%,60%,0.6);
  margin-bottom: 1.5rem;
}
.footer-links-list { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-product-link {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.6); letter-spacing: 0.05em;
  transition: color 0.3s;
}
.footer-product-link svg { opacity: 0; transition: opacity 0.3s; }
.footer-product-link:hover { color: var(--neon); }
.footer-product-link:hover svg { opacity: 1; }
.footer-contact-item { display: flex; align-items: center; gap: 0.75rem; }
.footer-contact-icon {
  width: 2rem; height: 2rem; border-radius: 0.5rem;
  background: hsla(200,100%,60%,0.05);
  border: 1px solid hsla(200,100%,60%,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.footer-contact-link {
  font-size: 0.875rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.6); transition: color 0.3s;
}
.footer-contact-link:hover { color: var(--neon); }
.footer-divider {
  height: 1px; margin-bottom: 2rem;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}
.footer-bottom {
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
  font-size: 0.75rem; font-family: 'JetBrains Mono', monospace;
  color: hsla(215,12%,55%,0.4);
}
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { transition: color 0.3s; }
.footer-bottom-links a:hover { color: var(--neon); }

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}
@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (min-width: 640px) {
  .top-bar-right { display: flex; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

@media (max-width: 1024px) {
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: block; }

  .products-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .about-products { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-body { padding: 1.5rem; }
  .arch-card-inner { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .why-grid { grid-template-columns: 1fr; }
}