I'll write the complete `styles.css` file for Nebula Landing, matching the classes used in `index.html` (nebula-backdrop, nebula-orb, grid-veil, site-header, skip-link, focus-ring, data-nav reveal patterns) and the Tailwind config tokens.

```css
/* =========================================================================
   Nebula Landing — styles.css
   Design tokens, dark glassmorphism, responsive layouts,
   keyframe animations, and mobile breakpoints.
   Works alongside Tailwind (CDN) — layers on top of utility classes.
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ------------------------------------------------------------------------- */
:root {
  /* ---- Core palette ---- */
  --nebula-50:  #f2f0ff;
  --nebula-100: #e7e3ff;
  --nebula-200: #d1c9ff;
  --nebula-300: #b3a3ff;
  --nebula-400: #9575ff;
  --nebula-500: #7c4dff;
  --nebula-600: #6d2ff5;
  --nebula-700: #5c1fd8;
  --nebula-800: #4c1bb0;
  --nebula-900: #3f1a8c;
  --nebula-950: #260b63;

  --ink-900: #08060f;
  --ink-800: #0b0618;
  --ink-700: #130c26;
  --ink-600: #1c1136;

  /* ---- Accents ---- */
  --accent-cyan:   #22d3ee;
  --accent-pink:   #f472b6;
  --accent-violet: #a78bfa;

  /* ---- Text ---- */
  --text-primary: #f4f2ff;
  --text-muted:   #a9a3c6;
  --text-faint:   #6f6a8e;

  /* ---- Glassmorphism surfaces ---- */
  --glass-bg:     rgba(28, 17, 54, 0.55);
  --glass-bg-soft:rgba(28, 17, 54, 0.35);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-border-strong: rgba(149, 117, 255, 0.35);
  --glass-blur:   16px;
  --glass-shadow: 0 18px 50px -20px rgba(0, 0, 0, 0.8);

  /* ---- Gradients ---- */
  --grad-hero:  linear-gradient(135deg, #7c4dff 0%, #4c1bb0 45%, #22d3ee 100%);
  --grad-text:  linear-gradient(90deg, #ffffff 0%, #c4b5fd 40%, #67e8f9 75%, #ffffff 100%);
  --grad-cta:   linear-gradient(135deg, #7c4dff 0%, #a855f7 50%, #22d3ee 100%);

  /* ---- Radii ---- */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  /* ---- Spacing / rhythm ---- */
  --section-y: clamp(4rem, 9vw, 8.5rem);
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
  --maxw: 80rem;

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-base: 320ms;
  --dur-slow: 640ms;

  /* ---- Header ---- */
  --header-h: 74px;

  /* ---- z-index scale ---- */
  --z-backdrop: 0;
  --z-content: 1;
  --z-header: 100;
  --z-overlay: 200;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  min-height: 100vh;
  position: relative;
  overflow-x: clip;
  background-color: var(--ink-800);
  color: var(--text-primary);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
}

p { margin: 0; }

::selection {
  background: rgba(124, 77, 255, 0.4);
  color: #fff;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--ink-900); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--nebula-600), var(--nebula-900));
  border-radius: 999px;
  border: 2px solid var(--ink-900);
}
::-webkit-scrollbar-thumb:hover { background: var(--nebula-500); }

/* -------------------------------------------------------------------------
   3. ACCESSIBILITY
   ------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: var(--z-overlay);
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-pill);
  background: var(--nebula-600);
  color: #fff;
  font-weight: 600;
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.focus-ring:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--nebula-300);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

[hidden] { display: none !important; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* -------------------------------------------------------------------------
   4. AMBIENT NEBULA BACKDROP
   ------------------------------------------------------------------------- */
.nebula-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-backdrop);
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(1200px 700px at 78% -12%, rgba(124, 77, 255, 0.30), transparent 60%),
    radial-gradient(900px 600px at 12% 8%,  rgba(34, 211, 238, 0.16), transparent 62%),
    radial-gradient(1000px 800px at 50% 115%, rgba(244, 114, 182, 0.14), transparent 65%),
    var(--ink-800);
}

.nebula-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  will-change: transform;
}
.nebula-orb--one {
  width: min(46vw, 560px);
  aspect-ratio: 1;
  top: -10%;
  left: -8%;
  background: radial-gradient(circle at 35% 35%, var(--nebula-400), var(--nebula-800) 68%, transparent 72%);
}
.nebula-orb--two {
  width: min(38vw, 480px);
  aspect-ratio: 1;
  top: 22%;
  right: -10%;
  background: radial-gradient(circle at 60% 40%, var(--accent-cyan), #0e7490 60%, transparent 72%);
  opacity: 0.38;
  animation-duration: 24s;
  animation-delay: -6s;
}
.nebula-orb--three {
  width: min(42vw, 520px);
  aspect-ratio: 1;
  bottom: -18%;
  left: 30%;
  background: radial-gradient(circle at 50% 50%, var(--accent-pink), #831843 62%, transparent 74%);
  opacity: 0.32;
  animation-duration: 30s;
  animation-delay: -12s;
}

/* Faint grid veil above the orbs */
.grid-veil {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 75% 60% at 50% 40%, #000 30%, transparent 82%);
  -webkit-mask-image: radial-gradient(ellipse 75% 60% at 50% 40%, #000 30%, transparent 82%);
  opacity: 0.6;
}

/* Keep page content above the backdrop */
body > header,
body > main,
body > footer { position: relative; z-index: var(--z-content); }

/* -------------------------------------------------------------------------
   5. KEYFRAME ANIMATIONS
   ------------------------------------------------------------------------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(30px, -24px, 0) scale(1.08); }
  100% { transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes shimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes pulseRing {
  0%   { transform: scale(0.9); opacity: 0.7; }
  70%  { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1.6); opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes sheen {
  0%   { transform: translateX(-120%) skewX(-18deg); }
  100% { transform: translateX(220%)  skewX(-18deg); }
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(8px); }
}

/* Animation utilities (mirror Tailwind's animate-* config) */
.animate-float      { animation: float 6s var(--ease-in-out) infinite; }
.animate-drift      { animation: drift 18s var(--ease-in-out) infinite; }
.animate-shimmer    { animation: shimmer 6s linear infinite; }
.animate-pulse-ring { animation: pulseRing 2.6s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-bob        { animation: bob 3.4s var(--ease-in-out) infinite; }

/* -------------------------------------------------------------------------
   6. SCROLL REVEAL (driven by IntersectionObserver in script.js)
   ------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* stagger helpers used in markup: data-delay or inline style */
.reveal[data-delay="1"] { --reveal-delay: 90ms; }
.reveal[data-delay="2"] { --reveal-delay: 180ms; }
.reveal[data-delay="3"] { --reveal-delay: 270ms; }
.reveal[data-delay="4"] { --reveal-delay: 360ms; }
.reveal[data-delay="5"] { --reveal-delay: 450ms; }

/* -------------------------------------------------------------------------
   7. HEADER / STICKY NAV
   ------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  width: 100%;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    backdrop-filter var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

/* Applied by script.js when scrolled */
.site-header.is-scrolled {
  background: rgba(11, 6, 24, 0.72);
  border-bottom-color: var(--glass-border);
  -webkit-backdrop-filter: saturate(160%) blur(var(--glass-blur));
  backdrop-filter: saturate(160%) blur(var(--glass-blur));
  box-shadow: 0 10px 40px -22px rgba(0, 0, 0, 0.9);
}

/* Nav link underline + hover treatment */
.site-header nav a[data-nav] {
  position: relative;
  transition: color var(--dur-fast) var(--ease-out);
}
.site-header nav a[data-nav]::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--nebula-400), var(--accent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.site-header nav a[data-nav]:hover::after,
.site-header nav a[data-nav]:focus-visible::after,
.site-header nav a[data-nav].is-active::after {
  transform: scaleX(1);
}

/* Mobile menu panel (toggled by script.js) */
.mobile-menu {
  display: none;
}
.mobile-menu.is-open {
  display: block;
  animation: fadeUp var(--dur-base) var(--ease-out);
}

.menu-toggle .menu-toggle__bar {
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* -------------------------------------------------------------------------
   8. LAYOUT HELPERS
   ------------------------------------------------------------------------- */
.section {
  position: relative;
  padding-block: var(--section-y);
  padding-inline: var(--gutter);
}
.container-x {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Featured heading gradient text */
.gradient-text {
  background: var(--grad-text);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientShift 8s ease infinite;
}

/* -------------------------------------------------------------------------
   9. GLASSMORPHISM COMPONENTS
   ------------------------------------------------------------------------- */
.glass,
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  box-shadow: var(--glass-shadow);
}

.glass-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.09), transparent 42%);
  opacity: 0.7;
  pointer-events: none;
}
.glass-card:hover {
  transform: translateY(-8px);
  border-color: var(--glass-border-strong);
  box-shadow: 0 30px 70px -28px rgba(124, 77, 255, 0.7);
}

/* Icon chip used in feature cards */
.icon-chip {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.9), rgba(34, 211, 238, 0.75));
  box-shadow: 0 0 30px -8px rgba(124, 77, 255, 0.8);
  color: #fff;
}

/* -------------------------------------------------------------------------
   10. BUTTONS
   ------------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.6rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.975rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background: var(--grad-cta);
  background-size: 180% auto;
  color: #fff;
  box-shadow: 0 12px 40px -14px rgba(124, 77, 255, 0.9);
}
.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: 0 22px 60px -18px rgba(124, 77, 255, 1);
}

.btn-ghost {
  background: var(--glass-bg-soft);
  border-color: var(--glass-border);
  color: var(--text-primary);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: var(--glass-border-strong);
  background: rgba(124, 77, 255, 0.18);
  transform: translateY(-2px);
}

/* Sheen sweep on hover */
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: translateX(-120%) skewX(-18deg);
  pointer-events: none;
}
.btn-primary:hover::after { animation: sheen 900ms var(--ease-out); }

/* -------------------------------------------------------------------------
   11. HERO
   ------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(3.5rem, 10vw, 8rem) clamp(3rem, 8vw, 6rem);
  padding-inline: var(--gutter);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border-strong), transparent);
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.75rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
}

/* Animated gradient headline */
.hero-title .gradient-text { animation: gradientShift 7s ease infinite; }

/* Hero visual frame */
.hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 1px;
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.7), rgba(34, 211, 238, 0.3), transparent 70%);
}
.hero-visual > * {
  border-radius: calc(var(--radius-xl) - 1px);
}

/* Eyebrow / pill badge */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-soft);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.7);
  animation: pulseRing 2.6s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* -------------------------------------------------------------------------
   12. FEATURE GRID
   ------------------------------------------------------------------------- */
.feature-grid {
  display: grid;
  gap: clamp(1rem, 2.2vw, 1.75rem);
  grid-template-columns: 1fr;
}

/* -------------------------------------------------------------------------
   13. STATS BAND
   ------------------------------------------------------------------------- */
.stats-band {
  position: relative;
  border-radius: var(--radius-xl);
  padding: clamp(1.75rem, 4vw, 3rem);
  background:
    linear-gradient(180deg, rgba(124, 77, 255, 0.10), rgba(11, 6, 24, 0.2)),
    var(--glass-bg);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  overflow: hidden;
}
.stats-band::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 70%;
  background: radial-gradient(ellipse at 50% 0%, rgba(124, 77, 255, 0.35), transparent 70%);
  pointer-events: none;
}
.stats-grid {
  position: relative;
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  grid-template-columns: 1fr;
}
.stat-value {
  font-size: clamp(2rem, 5.5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff, #b3a3ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat-label {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* -------------------------------------------------------------------------
   14. CTA SECTION
   ------------------------------------------------------------------------- */
.cta-panel {
  position: relative;
  border-radius: var(--radius-xl);
  padding: clamp(2.25rem, 6vw, 4.5rem);
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(124, 77, 255, 0.35), transparent 60%),
    var(--glass-bg);
  border: 1px solid var(--glass-border-strong);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  box-shadow: 0 40px 100px -40px rgba(124, 77, 255, 0.7);
}
.cta-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000, transparent 78%);
  pointer-events: none;
}

/* -------------------------------------------------------------------------
   15. FOOTER
   ------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  border-top: 1px solid var(--glass-border);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  padding-inline: var(--gutter);
  background: linear-gradient(180deg, transparent, rgba(8, 6, 15, 0.6));
}
.site-footer a {
  color: var(--text-muted);
  transition: color var(--dur-fast) var(--ease-out);
}
.site-footer a:hover { color: var(--nebula-300); }

/* -------------------------------------------------------------------------
   16. UTILITY / EFFECTS
   ------------------------------------------------------------------------- */
.hover-lift {
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 60px -26px rgba(124, 77, 255, 0.75);
}

.glow-border { box-shadow: 0 0 40px -8px rgba(124, 77, 255, 0.55); }
.glow-border-lg { box-shadow: 0 0 90px -20px rgba(124, 77, 255, 0.7); }

.text-muted { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }

.divider-glow {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--glass-border-strong), transparent);
}

/* -------------------------------------------------------------------------
   17. RESPONSIVE BREAKPOINTS
   ------------------------------------------------------------------------- */

/* Small phones */
@media (max-width: 380px) {
  :root { --gutter: 1rem; --header-h: 66px; }
  .btn { width: 100%; }
  .hero-title { font-size: clamp(2rem, 9vw, 2.6rem); }
}

/* Tablets / small laptops */
@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-grid   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Desktop */
@media (min-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stats-grid   { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

/* Large desktop */
@media (min-width: 1280px) {
  :root { --maxw: 84rem; }
}

/* Mobile nav visibility: hide desktop nav links below lg, hide toggle at lg+ */
@media (max-width: 1023px) {
  .desktop-nav { display: none !important; }
  .mobile-menu { border-top: 1px solid var(--glass-border); }
  .mobile-menu.is-open {
    background: rgba(11, 6, 24, 0.92);
    -webkit-backdrop-filter: blur(var(--glass-blur));
    backdrop-filter: blur(var(--glass-blur));
  }
}
@media (min-width: 1024px) {
  .menu-toggle { display: none !important; }
  .mobile-menu { display: none !important; }
}

/* Reduced-height viewports: shrink hero padding */
@media (max-height: 640px) {
  .hero { padding-block: 2.5rem; }
}

/* Touch devices: disable hover-lift transforms that can misbehave */
@media (hover: none) {
  .glass-card:hover,
  .btn-primary:hover,
  .btn-ghost:hover,
  .hover-lift:hover { transform: none; }
}

/* -------------------------------------------------------------------------
   18. PRINT
   ------------------------------------------------------------------------- */
@media print {
  .nebula-backdrop,
  .site-header,
  .menu-toggle,
  .cta-panel::after { display: none !important; }
  body { background: #fff; color: #000; }
  .glass, .glass-card, .stats-band, .cta-panel {
    background: #fff;
    border: 1px solid #ccc;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .gradient-text,
  .stat-value {
    -webkit-text-fill-color: #000;
    color: #000;
    background: none;
  }
}
```