/* ============================================================
   crosstax.net — Holographic Data Design System
   Concept 2: Holographic Data dark theme
   Primary: Gold (#c9a24c) | Cyan (#64c8ff)
   Background: #060b18 | Text: #e8e8e8
   ============================================================ */

/* ----------------------------------------------------------
   1. CUSTOM PROPERTIES
   ---------------------------------------------------------- */
:root {
  /* --- Colors --- */
  --color-bg: #060b18;
  --color-bg-alt: #0a1228;
  --color-bg-card: rgba(255, 255, 255, 0.015);
  --color-bg-glass: rgba(255, 255, 255, 0.03);
  --color-bg-input: rgba(255, 255, 255, 0.05);
  --color-text: #e8e8e8;
  --color-text-muted: #8892a4;
  --color-text-dim: #5a6478;
  --color-text-inverse: #060b18;
  --color-gold: #c9a24c;
  --color-gold-light: #e0be6e;
  --color-gold-dark: #a88330;
  --color-gold-glow: rgba(201, 162, 76, 0.3);
  --color-cyan: #64c8ff;
  --color-cyan-glow: rgba(100, 200, 255, 0.25);
  --color-accent-gradient: linear-gradient(135deg, #c9a24c 0%, #64c8ff 100%);
  --color-gold-gradient: linear-gradient(135deg, #c9a24c 0%, #e0be6e 100%);
  --color-border: rgba(255, 255, 255, 0.04);
  --color-border-light: rgba(255, 255, 255, 0.08);
  --color-border-gold: rgba(201, 162, 76, 0.2);
  --color-overlay: rgba(6, 11, 24, 0.85);
  --color-success: #4cdf8b;
  --color-warning: #f0b34b;
  --color-error: #f06060;

  /* --- Spacing --- */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* --- Typography --- */
  --font-family: -apple-system, 'Inter', 'PingFang SC', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.15;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* --- Border Radius --- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-glass: 300ms cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* --- Z-Index Layers --- */
  --z-particles: 0;
  --z-scanlines: 1;
  --z-holo-ring: 2;
  --z-content: 5;
  --z-nav: 100;
  --z-modal-overlay: 200;
  --z-modal: 210;

  /* --- Glass Card Defaults --- */
  --glass-bg: rgba(255, 255, 255, 0.015);
  --glass-border: rgba(255, 255, 255, 0.04);
  --glass-blur: 12px;

  /* --- Layout --- */
  --max-width: 1200px;
  --nav-height: 72px;
}

/* ----------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-gold-light);
}

a:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

small, .text-small {
  font-size: var(--font-size-sm);
}

::selection {
  background: var(--color-gold);
  color: var(--color-text-inverse);
}

::-moz-selection {
  background: var(--color-gold);
  color: var(--color-text-inverse);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ----------------------------------------------------------
   3. PARTICLE CANVAS BACKGROUND LAYER
   ---------------------------------------------------------- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-particles);
  pointer-events: none;
  opacity: 0.6;
}

/* ----------------------------------------------------------
   4. SCANLINES OVERLAY
   ---------------------------------------------------------- */
.scanlines-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-scanlines);
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.04) 2px,
    rgba(0, 0, 0, 0.04) 4px
  );
}

.scanlines-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    ellipse at center,
    transparent 60%,
    rgba(6, 11, 24, 0.4) 100%
  );
}

/* ----------------------------------------------------------
   5. HOLOGRAPHIC RING DECORATIONS
   ---------------------------------------------------------- */
.holo-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-holo-ring);
  border: 1px solid rgba(201, 162, 76, 0.08);
  background: radial-gradient(
    circle at 30% 30%,
    rgba(201, 162, 76, 0.03) 0%,
    rgba(100, 200, 255, 0.02) 50%,
    transparent 70%
  );
  animation: holo-pulse 6s ease-in-out infinite;
}

.holo-ring--lg {
  width: 600px;
  height: 600px;
  top: -200px;
  right: -200px;
}

.holo-ring--md {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -150px;
  animation-delay: 2s;
}

.holo-ring--sm {
  width: 200px;
  height: 200px;
  top: 50%;
  left: -80px;
  animation-delay: 4s;
}

@keyframes holo-pulse {
  0%, 100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

/* ----------------------------------------------------------
   6. UTILITY LAYOUT
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  position: relative;
  z-index: var(--z-content);
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section--alt {
  background: var(--color-bg-alt);
}

.page-wrapper {
  position: relative;
  z-index: var(--z-content);
  min-height: 100vh;
}

/* ----------------------------------------------------------
   7. TYPOGRAPHY — GRADIENT TEXT
   ---------------------------------------------------------- */
.gradient-text {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text--gold {
  background: var(--color-gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ----------------------------------------------------------
   8. NAVIGATION
   ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(6, 11, 24, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-base);
}

.nav.scrolled {
  background: rgba(6, 11, 24, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.nav__logo:hover {
  color: var(--color-gold-light);
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-gold);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
}

/* Nav Links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-gold-gradient);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__link--active {
  color: var(--color-gold);
}

.nav__link--active::after {
  width: 100%;
}

/* Nav CTA button (right side) */
.nav__cta {
  flex-shrink: 0;
}

/* Mobile Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ----------------------------------------------------------
   9. HERO SECTION
   ---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--nav-height) var(--space-xl) var(--space-4xl);
  overflow: hidden;
}

.hero__content {
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.hero__label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-full);
  padding: var(--space-xs) var(--space-lg);
  margin-bottom: var(--space-xl);
  background: rgba(201, 162, 76, 0.06);
}

.hero__title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.03em;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: var(--line-height-relaxed);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    rgba(201, 162, 76, 0.06) 0%,
    rgba(100, 200, 255, 0.03) 30%,
    transparent 70%
  );
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* ----------------------------------------------------------
   10. SECTION HEADERS
   ---------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-4xl);
}

.section-header__label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: var(--space-sm);
}

.section-header__label--gold {
  color: var(--color-gold);
}

.section-header__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section-header__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.section-header--left {
  text-align: left;
  margin-left: 0;
}

/* ----------------------------------------------------------
   11. GLASS CARD COMPONENT
   ---------------------------------------------------------- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-xl);
  transition: all var(--transition-glass);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  pointer-events: none;
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.025);
  border-color: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
}

.glass-card--glow:hover {
  border-color: var(--color-border-gold);
  box-shadow: 0 0 30px rgba(201, 162, 76, 0.06),
              0 0 60px rgba(201, 162, 76, 0.03);
}

.glass-card--cyan:hover {
  border-color: rgba(100, 200, 255, 0.15);
  box-shadow: 0 0 30px rgba(100, 200, 255, 0.06);
}

/* ----------------------------------------------------------
   12. SERVICE CARDS
   ---------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-2xl);
  transition: all var(--transition-glass);
  position: relative;
  overflow: hidden;
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  pointer-events: none;
}

.service-card::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1.5px;
  background: var(--color-gold-gradient);
  transition: width var(--transition-slow);
  border-radius: var(--radius-full);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-gold);
  background: rgba(255, 255, 255, 0.025);
  box-shadow:
    0 8px 40px rgba(201, 162, 76, 0.08),
    0 0 0 1px rgba(201, 162, 76, 0.1) inset,
    0 0 80px rgba(201, 162, 76, 0.03);
}

.service-card:hover::after {
  width: 60%;
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-2xl);
  background: rgba(201, 162, 76, 0.08);
  color: var(--color-gold);
  border: 1px solid var(--color-border-gold);
  transition: all var(--transition-base);
}

.service-card:hover .service-card__icon {
  background: rgba(201, 162, 76, 0.14);
  box-shadow: 0 0 20px rgba(201, 162, 76, 0.1);
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.service-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: 0;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gold);
  transition: gap var(--transition-fast);
}

.service-card__link:hover {
  gap: var(--space-sm);
}

/* ----------------------------------------------------------
   13. DATA PANELS (Stats Grid)
   ---------------------------------------------------------- */
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.data-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-glass);
  position: relative;
  overflow: hidden;
}

.data-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-gold),
    transparent
  );
  opacity: 0.3;
}

.data-panel:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-gold);
  box-shadow: 0 0 30px rgba(201, 162, 76, 0.05);
}

.data-panel__number {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.03em;
}

.data-panel__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0;
}

.data-panel__suffix {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-medium);
  -webkit-text-fill-color: var(--color-gold);
}

/* ----------------------------------------------------------
   14. BADGES & TAGS
   ---------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  white-space: nowrap;
  line-height: 1;
  letter-spacing: 0.02em;
}

.badge--gold {
  background: rgba(201, 162, 76, 0.1);
  color: var(--color-gold);
  border: 1px solid rgba(201, 162, 76, 0.15);
}

.badge--cyan {
  background: rgba(100, 200, 255, 0.08);
  color: var(--color-cyan);
  border: 1px solid rgba(100, 200, 255, 0.12);
}

.badge--success {
  background: rgba(76, 223, 139, 0.08);
  color: var(--color-success);
  border: 1px solid rgba(76, 223, 139, 0.12);
}

.badge--outline {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 2px var(--space-sm);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-dim);
  border: 1px solid var(--glass-border);
}

/* ----------------------------------------------------------
   15. BUTTONS
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Button — Gold Gradient */
.btn-primary {
  background: var(--color-gold-gradient);
  color: var(--color-text-inverse);
  box-shadow: 0 4px 20px rgba(201, 162, 76, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(201, 162, 76, 0.35);
  color: var(--color-text-inverse);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(201, 162, 76, 0.2);
}

/* Glass Button */
.btn-glass {
  background: var(--glass-bg);
  color: var(--color-text);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
  transform: translateY(-1px);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--color-gold);
  border: 1.5px solid var(--color-border-gold);
}

.btn-outline:hover {
  background: rgba(201, 162, 76, 0.06);
  border-color: var(--color-gold);
  color: var(--color-gold-light);
  transform: translateY(-1px);
}

/* Cyan variant */
.btn-cyan {
  background: rgba(100, 200, 255, 0.1);
  color: var(--color-cyan);
  border: 1px solid rgba(100, 200, 255, 0.2);
}

.btn-cyan:hover {
  background: rgba(100, 200, 255, 0.18);
  border-color: rgba(100, 200, 255, 0.35);
  color: var(--color-cyan);
  transform: translateY(-1px);
}

/* Button Sizes */
.btn--sm {
  font-size: var(--font-size-xs);
  padding: 0.5rem 1.125rem;
}

.btn--lg {
  font-size: var(--font-size-base);
  padding: 0.875rem 2.25rem;
}

/* ----------------------------------------------------------
   16. FORMS & INPUTS
   ---------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.01em;
}

.form-input {
  width: 100%;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  transition: all var(--transition-base);
  outline: none;
}

.form-input::placeholder {
  color: var(--color-text-dim);
}

.form-input:hover {
  border-color: var(--color-border-light);
}

.form-input:focus {
  border-color: var(--color-gold);
  background: rgba(201, 162, 76, 0.04);
  box-shadow: 0 0 0 3px rgba(201, 162, 76, 0.08);
}

.form-input--error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(240, 96, 96, 0.08);
}

.form-input--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(240, 96, 96, 0.12);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  margin-top: var(--space-xs);
}

textarea.form-input {
  min-height: 100px;
  resize: vertical;
  line-height: var(--line-height-normal);
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238892a4' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background: var(--color-bg-input);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition-fast);
}

.form-check input[type="radio"] {
  border-radius: 50%;
}

.form-check input[type="checkbox"]:checked,
.form-check input[type="radio"]:checked {
  background: var(--color-gold);
  border-color: var(--color-gold);
}

.form-check input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 8px;
  border: solid var(--color-text-inverse);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-check input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-inverse);
}

.form-check input:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* ----------------------------------------------------------
   17. MODAL OVERLAY
   ---------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-modal-overlay);
  background: var(--color-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  padding: var(--space-xl);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  z-index: var(--z-modal);
  width: 100%;
  max-width: 460px;
  background: var(--color-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5),
              0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  transform: scale(0.95) translateY(10px);
  transition: all var(--transition-base);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.modal__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-bg-glass);
  border: 1px solid var(--glass-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-lg);
  line-height: 1;
}

.modal__close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
}

.modal__body {
  margin-bottom: var(--space-xl);
}

.modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--glass-border);
}

.modal--sm { max-width: 400px; }
.modal--lg { max-width: 600px; }

/* ----------------------------------------------------------
   18. FOOTER
   ---------------------------------------------------------- */
.footer {
  position: relative;
  z-index: var(--z-content);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gold);
}

.footer__copy {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  margin-bottom: 0;
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-gold);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
  color: var(--color-text-dim);
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
}

.footer__social-link:hover {
  color: var(--color-gold);
  border-color: var(--color-border-gold);
  background: rgba(201, 162, 76, 0.06);
}

.footer__divider {
  height: 1px;
  background: var(--glass-border);
  margin: var(--space-xl) 0;
}

/* ----------------------------------------------------------
   19. SCROLL REVEAL ANIMATION
   ---------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed,
.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  transform: translateX(-30px);
}

.reveal--left.revealed {
  transform: translateX(0);
}

.reveal--right {
  transform: translateX(30px);
}

.reveal--right.revealed {
  transform: translateX(0);
}

.reveal--scale {
  transform: scale(0.95);
}

.reveal--scale.revealed {
  transform: scale(1);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ----------------------------------------------------------
   20. MISC COMPONENTS
   ---------------------------------------------------------- */

/* Divider */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-border-light),
    transparent
  );
  margin: var(--space-2xl) 0;
}

.divider--gold {
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-border-gold),
    transparent
  );
}

/* Feature list (icon + text rows) */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.feature-list__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  color: var(--color-gold);
  font-size: var(--font-size-sm);
}

/* Page hero (inner pages) */
.page-hero {
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-4xl);
  text-align: center;
  position: relative;
}

.page-hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
}

.page-hero__breadcrumb {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  margin-bottom: var(--space-lg);
}

.page-hero__breadcrumb a {
  color: var(--color-text-muted);
}

.page-hero__breadcrumb a:hover {
  color: var(--color-gold);
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner--lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Tooltip */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-normal);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Pricing card */
.pricing-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-glass);
  position: relative;
}

.pricing-card--featured {
  border-color: var(--color-border-gold);
  background: rgba(201, 162, 76, 0.02);
}

.pricing-card--featured::before {
  content: 'Popular';
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  background: var(--color-gold-gradient);
  color: var(--color-text-inverse);
  letter-spacing: 0.04em;
}

.pricing-card:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(201, 162, 76, 0.06);
}

.pricing-card__name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.pricing-card__price {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.pricing-card__period {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  margin-bottom: var(--space-xl);
}

.pricing-card__features {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: var(--space-sm) 0;
}

.pricing-card__feature::before {
  content: '✓';
  color: var(--color-gold);
  font-weight: var(--font-weight-bold);
}

/* ----------------------------------------------------------
   21. KEYFRAMES
   ---------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(201, 162, 76, 0.1);
  }
  50% {
    box-shadow: 0 0 40px rgba(201, 162, 76, 0.2);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ----------------------------------------------------------
   22. RESPONSIVE — TABLETS (≤ 1024px)
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.5rem;
  }

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

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

  .holo-ring--lg {
    width: 400px;
    height: 400px;
  }
}

/* ----------------------------------------------------------
   23. RESPONSIVE — MOBILE (≤ 768px)
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-4xl: 2rem;
    --font-size-5xl: 2.25rem;
    --font-size-6xl: 2.75rem;
    --space-4xl: 4rem;
    --space-5xl: 5rem;
    --nav-height: 64px;
  }

  /* Navigation */
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2xl);
    background: rgba(6, 11, 24, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 5;
  }

  .nav__links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    font-size: var(--font-size-xl);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__cta {
    display: none;
  }

  .nav__cta--mobile {
    display: inline-flex;
    margin-top: var(--space-lg);
  }

  /* Hero */
  .hero {
    min-height: 90vh;
    padding-top: calc(var(--nav-height) + var(--space-2xl));
  }

  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-base);
  }

  /* Grids */
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .data-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  /* Sections */
  .section-header__title {
    font-size: var(--font-size-2xl);
  }

  .section-header__description {
    font-size: var(--font-size-base);
  }

  /* Cards */
  .glass-card,
  .service-card,
  .data-panel,
  .pricing-card {
    padding: var(--space-lg);
  }

  /* Modal */
  .modal {
    padding: var(--space-lg);
    max-width: 100%;
    border-radius: var(--radius-xl);
  }

  /* Footer */
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }

  /* Data panels */
  .data-panel__number {
    font-size: var(--font-size-4xl);
  }

  /* Buttons */
  .btn {
    padding: 0.65rem 1.5rem;
  }

  /* Holographic rings - hide on mobile to reduce visual noise */
  .holo-ring--lg,
  .holo-ring--md {
    display: none;
  }

  .holo-ring--sm {
    width: 120px;
    height: 120px;
  }
}

/* ----------------------------------------------------------
   24. RESPONSIVE — SMALL MOBILE (≤ 480px)
   ---------------------------------------------------------- */
@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.875rem;
    --font-size-6xl: 2.25rem;
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

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

  .hero__actions .btn {
    width: 100%;
  }

  .data-grid {
    grid-template-columns: 1fr;
  }

  .data-panel__number {
    font-size: var(--font-size-3xl);
  }

  .section {
    padding: var(--space-4xl) 0;
  }

  .container {
    padding: 0 var(--space-md);
  }
}

/* ----------------------------------------------------------
   25. PRINT STYLES
   ---------------------------------------------------------- */
@media print {
  .nav,
  .scanlines-overlay,
  #particle-canvas,
  .modal-overlay,
  .holo-ring {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .glass-card,
  .service-card,
  .data-panel {
    background: white;
    border: 1px solid #ddd;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ----------------------------------------------------------
   26. ACCESSIBILITY — REDUCED MOTION
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}