website_designs

Holographic UI Design Reference

Overview

Holographic UI is a futuristic design aesthetic that simulates the look and feel of projected light interfaces – translucent panels hovering in space, prismatic color shifts, and sci-fi control panels rendered in shimmering iridescent hues. Rooted in decades of science fiction film and television (from the holographic displays of Star Wars and Minority Report to the transparent command consoles of Iron Man and Prometheus), the aesthetic imagines what interfaces would look like if they were made entirely of light rather than physical materials.

The visual language centers on translucency, light diffraction, and the spectral decomposition of white light into its rainbow constituents. Unlike Glassmorphism, which simulates frosted physical glass, Holographic UI evokes weightless photonic projections – surfaces that shimmer, refract, and shift color as the viewing angle changes. Panels appear to float in a dark void, bordered by softly glowing edges that suggest energy containment fields. Data is rendered in clean, luminous typography that appears to be etched in light itself.

Color palettes draw from the physics of light diffraction: spectral cyans, magentas, violets, and teals shift and blend across surfaces in gradient patterns that mimic the rainbow caustics seen on holographic foil, soap bubbles, and CD-ROM surfaces. Backgrounds are overwhelmingly dark – deep navy, near-black, or transparent void – so that the holographic elements appear to emit their own radiance. The result is an aesthetic that feels simultaneously advanced and ethereal, technical and magical.

In modern web and UI design, Holographic UI builds upon the layered visual appeal of Glassmorphism and adds shimmering light effects, spectral overlays, and a sense of dynamic energy. GPU-accelerated compositing and improved browser rendering pipelines now make it practical to use translucent panels, subtle glows, stacked layers of digital light, and animated gradient shifts as functional interface elements in production environments. The aesthetic is particularly effective for tech products, creative portfolios, data dashboards, and any application where a sense of cutting-edge sophistication is desired.


Visual Characteristics

Core Design Traits

Design Principles


Color Palette

The Holographic UI palette is derived from the visible light spectrum as decomposed through a prism. The foundation is deep darkness, upon which spectral colors are projected as luminous accents. Iridescent gradients blend multiple spectral hues across single surfaces, while individual accent colors serve specific functional roles.

Swatch Hex Role / Usage
Void Black #050510 Deepest background, outer space void
Deep Space #0A0A1A Primary surface background
Nebula Navy #0D1025 Elevated panels, card backgrounds
Cosmic Indigo #151535 Secondary surfaces, modal overlays
Holo Cyan #00E5FF Primary accent, interactive elements, links
Prism Magenta #FF00E5 Secondary accent, highlights, notifications
Spectral Violet #8B5CF6 Tertiary accent, decorative gradients
Refraction Teal #00D4AA Success states, confirmations, positive indicators
Diffraction Pink #FF6EC7 Warm accent, badges, soft highlights
Laser Blue #3B82F6 Information states, secondary interactive elements
Photon White #E8EAFF Primary text, high-contrast elements
Ghost Light #A0A4C0 Secondary text, captions, muted labels
Beam Silver #6B70A0 Disabled states, tertiary text, placeholders
Grid Line #1A1A3A Structural lines, subtle dividers, borders
Holo Gradient Start #00E5FF Iridescent gradient starting color
Holo Gradient End #FF00E5 Iridescent gradient ending color

CSS Custom Properties

:root {
  /* Backgrounds */
  --holo-bg-void: #050510;
  --holo-bg-deep: #0a0a1a;
  --holo-bg-nebula: #0d1025;
  --holo-bg-cosmic: #151535;

  /* Spectral accents */
  --holo-cyan: #00e5ff;
  --holo-magenta: #ff00e5;
  --holo-violet: #8b5cf6;
  --holo-teal: #00d4aa;
  --holo-pink: #ff6ec7;
  --holo-blue: #3b82f6;

  /* Text */
  --holo-text-primary: #e8eaff;
  --holo-text-secondary: #a0a4c0;
  --holo-text-muted: #6b70a0;

  /* Structural */
  --holo-grid: #1a1a3a;
  --holo-border: rgba(0, 229, 255, 0.15);
  --holo-border-bright: rgba(0, 229, 255, 0.4);

  /* Glows */
  --holo-glow-cyan: 0 0 12px rgba(0, 229, 255, 0.5), 0 0 40px rgba(0, 229, 255, 0.15);
  --holo-glow-magenta: 0 0 12px rgba(255, 0, 229, 0.5), 0 0 40px rgba(255, 0, 229, 0.15);
  --holo-glow-violet: 0 0 12px rgba(139, 92, 246, 0.5), 0 0 40px rgba(139, 92, 246, 0.15);

  /* Iridescent gradient */
  --holo-gradient: linear-gradient(
    135deg,
    #00e5ff 0%,
    #8b5cf6 25%,
    #ff00e5 50%,
    #ff6ec7 75%,
    #00e5ff 100%
  );

  /* Glass surface */
  --holo-glass: rgba(13, 16, 37, 0.6);
  --holo-glass-border: rgba(0, 229, 255, 0.12);
}

Typography

Holographic UI typography is sleek, geometric, and futuristic. Letterforms should feel precision-engineered and luminous, as though projected by light rather than printed with ink. Display type is typically wide, geometric, and uppercase with generous letter-spacing. Body text favors clean sans-serifs or monospaced fonts that evoke technical readouts and data terminals. Thin to medium weights work best, as they reinforce the impression of light-etched characters.

Font Weight(s) Usage Link
Orbitron 400, 500, 700, 900 Display headings, hero text, branding Orbitron
Exo 2 300, 400, 500, 700 Headings, subheadings, UI labels Exo 2
Rajdhani 300, 400, 500, 600, 700 Navigation, condensed labels, buttons Rajdhani
Space Grotesk 300, 400, 500, 700 Body text, descriptions, clean readability Space Grotesk
IBM Plex Mono 300, 400, 500 Data readouts, code blocks, terminal output IBM Plex Mono
Share Tech Mono 400 Monospaced labels, coordinates, HUD text Share Tech Mono
Electrolize 400 Dashboard labels, data-heavy interfaces Electrolize
Outfit 200, 300, 400, 500 Soft geometric sans-serif body text Outfit

Font Pairing Suggestions

Heading Font Body Font Character
Orbitron (700) Space Grotesk (400) High-tech command center, maximum sci-fi
Exo 2 (600) IBM Plex Mono (400) Clean futuristic dashboard, data-oriented
Rajdhani (600) Outfit (300) Elegant holographic, lightweight and airy
Orbitron (500) Share Tech Mono (400) HUD-style interface, military/aerospace
Electrolize (400) Space Grotesk (300) Minimalist sci-fi, understated futurism

Typography CSS Example

/* Import fonts */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Space+Grotesk:wght@300;400;500&family=IBM+Plex+Mono:wght@300;400&display=swap');

/* Headings: geometric, uppercase, luminous */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Orbitron', 'Exo 2', sans-serif;
  font-weight: 700;
  color: var(--holo-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

/* Display / Hero text with holographic glow */
.holo-display {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--holo-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: holo-shift 4s linear infinite;
}

@keyframes holo-shift {
  to { background-position: 200% center; }
}

/* Body text: clean, readable */
body {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--holo-text-primary);
  -webkit-font-smoothing: antialiased;
}

/* Data readout / monospaced */
.holo-data {
  font-family: 'IBM Plex Mono', 'Share Tech Mono', monospace;
  font-size: 0.85rem;
  color: var(--holo-cyan);
  letter-spacing: 0.04em;
  line-height: 1.5;
}

/* UI labels */
.holo-label {
  font-family: 'Orbitron', sans-serif;
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--holo-text-muted);
}

Layout Principles


CSS / Design Techniques

Holographic Card

.holo-card {
  background: rgba(13, 16, 37, 0.6);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

/* Iridescent shimmer overlay */
.holo-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 229, 255, 0.05) 0%,
    rgba(139, 92, 246, 0.05) 33%,
    rgba(255, 0, 229, 0.05) 66%,
    rgba(0, 229, 255, 0.05) 100%
  );
  background-size: 300% 300%;
  animation: shimmer 8s ease-in-out infinite;
  pointer-events: none;
  border-radius: inherit;
}

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

.holo-card:hover {
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: var(--holo-glow-cyan);
}

/* Corner accent brackets */
.holo-card::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid transparent;
  border-image: linear-gradient(
    135deg,
    rgba(0, 229, 255, 0.3),
    transparent 30%,
    transparent 70%,
    rgba(255, 0, 229, 0.3)
  ) 1;
  pointer-events: none;
}

/* Card grid */
.holo-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

Holographic Button

.holo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(0, 229, 255, 0.08);
  color: var(--holo-cyan);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 8px;
  padding: 14px 36px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

/* Iridescent sweep on hover */
.holo-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 229, 255, 0.15),
    rgba(139, 92, 246, 0.15),
    rgba(255, 0, 229, 0.15),
    transparent
  );
  transition: left 0.5s ease;
}

.holo-btn:hover::before {
  left: 100%;
}

.holo-btn:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: rgba(0, 229, 255, 0.6);
  box-shadow: var(--holo-glow-cyan);
  transform: translateY(-1px);
}

/* Magenta variant */
.holo-btn--magenta {
  background: rgba(255, 0, 229, 0.08);
  color: var(--holo-magenta);
  border-color: rgba(255, 0, 229, 0.3);
}

.holo-btn--magenta:hover {
  background: rgba(255, 0, 229, 0.15);
  border-color: rgba(255, 0, 229, 0.6);
  box-shadow: var(--holo-glow-magenta);
}

/* Filled variant */
.holo-btn--filled {
  background: linear-gradient(135deg, var(--holo-cyan), var(--holo-violet));
  color: var(--holo-bg-void);
  border: none;
}

.holo-btn--filled:hover {
  box-shadow: var(--holo-glow-cyan);
  filter: brightness(1.15);
}

Holographic Navigation Bar

.holo-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(5, 5, 16, 0.8);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid rgba(0, 229, 255, 0.08);
}

/* Iridescent bottom border accent */
.holo-nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--holo-cyan) 20%,
    var(--holo-violet) 50%,
    var(--holo-magenta) 80%,
    transparent
  );
  opacity: 0.4;
}

.holo-nav__logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1.1rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  background: var(--holo-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: holo-shift 6s linear infinite;
}

.holo-nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.holo-nav__links a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--holo-text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color 0.3s ease, text-shadow 0.3s ease;
  position: relative;
}

.holo-nav__links a:hover,
.holo-nav__links a.active {
  color: var(--holo-cyan);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.holo-nav__links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--holo-cyan);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
  border-radius: 1px;
}

Holographic Hero Section

.holo-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 40px;
  background: var(--holo-bg-void);
  overflow: hidden;
}

/* Radial glow behind hero content */
.holo-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    rgba(0, 229, 255, 0.08) 0%,
    rgba(139, 92, 246, 0.05) 30%,
    rgba(255, 0, 229, 0.03) 60%,
    transparent 70%
  );
  pointer-events: none;
}

/* Grid floor projection */
.holo-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background:
    linear-gradient(to bottom, transparent, rgba(0, 229, 255, 0.02)),
    repeating-linear-gradient(
      90deg, transparent, transparent 79px,
      rgba(0, 229, 255, 0.04) 79px, rgba(0, 229, 255, 0.04) 80px
    ),
    repeating-linear-gradient(
      0deg, transparent, transparent 79px,
      rgba(0, 229, 255, 0.04) 79px, rgba(0, 229, 255, 0.04) 80px
    );
  transform: perspective(600px) rotateX(50deg);
  transform-origin: bottom;
  pointer-events: none;
  z-index: 0;
}

.holo-hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.holo-hero__content h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: 1.5rem;
  background: var(--holo-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: holo-shift 5s linear infinite;
  filter: drop-shadow(0 0 30px rgba(0, 229, 255, 0.3));
}

.holo-hero__content p {
  font-size: 1.15rem;
  color: var(--holo-text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

Iridescent Gradient Surface

.holo-surface {
  position: relative;
  background: var(--holo-bg-nebula);
  border-radius: 16px;
  padding: 2px;
  overflow: hidden;
}

/* Animated iridescent border */
.holo-surface::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--holo-cyan),
    var(--holo-violet),
    var(--holo-magenta),
    var(--holo-pink),
    var(--holo-cyan)
  );
  background-size: 400% 400%;
  animation: iridescent-border 6s ease-in-out infinite;
  z-index: -1;
}

@keyframes iridescent-border {
  0%, 100% { background-position: 0% 50%; }
  25% { background-position: 100% 0%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
}

.holo-surface__inner {
  background: var(--holo-bg-nebula);
  border-radius: 14px;
  padding: 32px;
}

Holographic Scan Lines Overlay

.holo-scanlines {
  position: relative;
}

.holo-scanlines::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 229, 255, 0.015) 3px,
    rgba(0, 229, 255, 0.015) 4px
  );
  pointer-events: none;
  z-index: 10;
}

Holographic Data Table

.holo-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
}

.holo-table th {
  font-family: 'Orbitron', sans-serif;
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--holo-cyan);
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(0, 229, 255, 0.15);
}

.holo-table td {
  padding: 12px 16px;
  color: var(--holo-text-primary);
  border-bottom: 1px solid rgba(0, 229, 255, 0.05);
}

.holo-table tr:hover td {
  background: rgba(0, 229, 255, 0.03);
}

.holo-table tr:hover td:first-child {
  box-shadow: inset 3px 0 0 var(--holo-cyan);
}

Holographic Input Field

.holo-input {
  background: rgba(13, 16, 37, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 8px;
  padding: 14px 20px;
  color: var(--holo-text-primary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.holo-input::placeholder {
  color: var(--holo-text-muted);
}

.holo-input:focus {
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08), var(--holo-glow-cyan);
}

Design Do’s and Don’ts

Do’s

Don’ts


Aesthetic Relationship to Holographic UI
Glassmorphism Shares the translucent, blurred panel approach, but Glassmorphism simulates physical frosted glass while Holographic UI simulates projected light
Cyberpunk Both use neon-on-dark palettes and sci-fi UI conventions, but Cyberpunk is dystopian and gritty while Holographic UI is clean and aspirational
Dark Mode Neon Shares the dark background and luminous accent philosophy, but without the iridescent color-shifting and translucent layering
Synthwave Both reference retro-futuristic aesthetics with neon glows, but Synthwave is rooted in 1980s nostalgia while Holographic UI is forward-looking
Laser Grid Shares the perspective grid floors and neon line work, but Laser Grid is specifically retro (1980s wireframe) while Holographic UI is more advanced
Frutiger Aero Both use translucency and layered depth, but Frutiger Aero pairs glass with organic nature imagery and warm optimism
Chromecore Both evoke high-tech surfaces, but Chromecore focuses on reflective metallic solids while Holographic UI focuses on immaterial light projections
Aurora Gradient Shares the multi-color gradient approach, but Aurora is soft, natural (inspired by aurora borealis) while Holographic UI is sharp and technological

Quick-Start HTML Template

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Holographic UI</title>
  <link href="https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Space+Grotesk:wght@300;400;500&family=IBM+Plex+Mono:wght@300;400&display=swap" rel="stylesheet">
  <style>
    /* ========================================
       CSS Custom Properties
       ======================================== */
    :root {
      --holo-bg-void: #050510;
      --holo-bg-deep: #0a0a1a;
      --holo-bg-nebula: #0d1025;
      --holo-bg-cosmic: #151535;

      --holo-cyan: #00e5ff;
      --holo-magenta: #ff00e5;
      --holo-violet: #8b5cf6;
      --holo-teal: #00d4aa;
      --holo-pink: #ff6ec7;
      --holo-blue: #3b82f6;

      --holo-text-primary: #e8eaff;
      --holo-text-secondary: #a0a4c0;
      --holo-text-muted: #6b70a0;

      --holo-grid: #1a1a3a;
      --holo-border: rgba(0, 229, 255, 0.12);

      --holo-glow-cyan: 0 0 12px rgba(0, 229, 255, 0.5), 0 0 40px rgba(0, 229, 255, 0.15);
      --holo-glow-magenta: 0 0 12px rgba(255, 0, 229, 0.5), 0 0 40px rgba(255, 0, 229, 0.15);
      --holo-glow-violet: 0 0 12px rgba(139, 92, 246, 0.5), 0 0 40px rgba(139, 92, 246, 0.15);

      --holo-gradient: linear-gradient(
        135deg,
        #00e5ff 0%,
        #8b5cf6 25%,
        #ff00e5 50%,
        #ff6ec7 75%,
        #00e5ff 100%
      );
    }

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

    body {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 1rem;
      font-weight: 300;
      line-height: 1.7;
      color: var(--holo-text-primary);
      background: var(--holo-bg-void);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      font-family: 'Orbitron', sans-serif;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      line-height: 1.2;
    }

    /* ========================================
       Animations
       ======================================== */
    @keyframes holo-shift {
      to { background-position: 200% center; }
    }

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

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

    @keyframes pulse-glow {
      0%, 100% { opacity: 0.4; }
      50% { opacity: 0.8; }
    }

    @keyframes particle-drift {
      0% { transform: translateY(0) translateX(0); opacity: 0; }
      10% { opacity: 1; }
      90% { opacity: 1; }
      100% { transform: translateY(-100vh) translateX(20px); opacity: 0; }
    }

    /* ========================================
       Navigation
       ======================================== */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 48px;
      background: rgba(5, 5, 16, 0.85);
      backdrop-filter: blur(20px) saturate(150%);
      -webkit-backdrop-filter: blur(20px) saturate(150%);
    }

    nav::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(
        90deg,
        transparent,
        var(--holo-cyan) 20%,
        var(--holo-violet) 50%,
        var(--holo-magenta) 80%,
        transparent
      );
      opacity: 0.4;
    }

    .logo {
      font-family: 'Orbitron', sans-serif;
      font-weight: 900;
      font-size: 1.1rem;
      text-decoration: none;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      background: var(--holo-gradient);
      background-size: 200% auto;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: holo-shift 6s linear infinite;
    }

    nav ul {
      display: flex;
      gap: 32px;
      list-style: none;
    }

    nav ul a {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 0.85rem;
      font-weight: 400;
      color: var(--holo-text-secondary);
      text-decoration: none;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      transition: color 0.3s, text-shadow 0.3s;
    }

    nav ul a:hover {
      color: var(--holo-cyan);
      text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
    }

    /* ========================================
       Hero Section
       ======================================== */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 40px 80px;
      overflow: hidden;
    }

    /* Central radial glow */
    .hero::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 900px;
      height: 900px;
      background: radial-gradient(
        circle,
        rgba(0, 229, 255, 0.07) 0%,
        rgba(139, 92, 246, 0.04) 30%,
        rgba(255, 0, 229, 0.02) 55%,
        transparent 70%
      );
      pointer-events: none;
    }

    /* Grid floor */
    .hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 40%;
      background:
        linear-gradient(to bottom, transparent, rgba(0, 229, 255, 0.015)),
        repeating-linear-gradient(
          90deg, transparent, transparent 79px,
          rgba(0, 229, 255, 0.035) 79px, rgba(0, 229, 255, 0.035) 80px
        ),
        repeating-linear-gradient(
          0deg, transparent, transparent 79px,
          rgba(0, 229, 255, 0.035) 79px, rgba(0, 229, 255, 0.035) 80px
        );
      transform: perspective(600px) rotateX(50deg);
      transform-origin: bottom;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 780px;
    }

    .hero-content h1 {
      font-size: clamp(2.5rem, 6vw, 4.5rem);
      font-weight: 900;
      letter-spacing: 0.1em;
      margin-bottom: 1.5rem;
      background: var(--holo-gradient);
      background-size: 200% auto;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: holo-shift 5s linear infinite;
      filter: drop-shadow(0 0 30px rgba(0, 229, 255, 0.25));
    }

    .hero-content .subtitle {
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.8rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--holo-text-muted);
      margin-bottom: 1rem;
    }

    .hero-content p {
      font-size: 1.1rem;
      color: var(--holo-text-secondary);
      max-width: 560px;
      margin: 0 auto 2.5rem;
      line-height: 1.8;
    }

    /* Floating particles in hero */
    .particles {
      position: absolute;
      inset: 0;
      overflow: hidden;
      pointer-events: none;
      z-index: 1;
    }

    .particle {
      position: absolute;
      width: 2px;
      height: 2px;
      background: var(--holo-cyan);
      border-radius: 50%;
      box-shadow: 0 0 6px rgba(0, 229, 255, 0.6);
      animation: particle-drift linear infinite;
    }

    .particle:nth-child(1) { left: 10%; bottom: 0; animation-duration: 12s; animation-delay: 0s; }
    .particle:nth-child(2) { left: 25%; bottom: 0; animation-duration: 16s; animation-delay: 2s; }
    .particle:nth-child(3) { left: 40%; bottom: 0; animation-duration: 10s; animation-delay: 4s; background: var(--holo-violet); box-shadow: 0 0 6px rgba(139, 92, 246, 0.6); }
    .particle:nth-child(4) { left: 55%; bottom: 0; animation-duration: 14s; animation-delay: 1s; }
    .particle:nth-child(5) { left: 70%; bottom: 0; animation-duration: 11s; animation-delay: 3s; background: var(--holo-magenta); box-shadow: 0 0 6px rgba(255, 0, 229, 0.6); }
    .particle:nth-child(6) { left: 85%; bottom: 0; animation-duration: 15s; animation-delay: 5s; }
    .particle:nth-child(7) { left: 50%; bottom: 0; animation-duration: 13s; animation-delay: 6s; background: var(--holo-pink); box-shadow: 0 0 6px rgba(255, 110, 199, 0.6); }
    .particle:nth-child(8) { left: 33%; bottom: 0; animation-duration: 17s; animation-delay: 7s; }

    /* ========================================
       Buttons
       ======================================== */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 229, 255, 0.08);
      color: var(--holo-cyan);
      border: 1px solid rgba(0, 229, 255, 0.3);
      border-radius: 8px;
      padding: 14px 36px;
      font-family: 'Orbitron', sans-serif;
      font-weight: 600;
      font-size: 0.8rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      text-decoration: none;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .btn::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 229, 255, 0.12),
        rgba(139, 92, 246, 0.12),
        rgba(255, 0, 229, 0.12),
        transparent
      );
      transition: left 0.5s ease;
    }

    .btn:hover::before { left: 100%; }

    .btn:hover {
      background: rgba(0, 229, 255, 0.15);
      border-color: rgba(0, 229, 255, 0.6);
      box-shadow: var(--holo-glow-cyan);
      transform: translateY(-2px);
    }

    .btn--magenta {
      background: rgba(255, 0, 229, 0.08);
      color: var(--holo-magenta);
      border-color: rgba(255, 0, 229, 0.3);
    }

    .btn--magenta:hover {
      background: rgba(255, 0, 229, 0.15);
      border-color: rgba(255, 0, 229, 0.6);
      box-shadow: var(--holo-glow-magenta);
    }

    .btn-group {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* ========================================
       Section Divider
       ======================================== */
    .divider {
      height: 1px;
      background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 229, 255, 0.2) 15%,
        rgba(139, 92, 246, 0.3) 50%,
        rgba(255, 0, 229, 0.2) 85%,
        transparent
      );
      margin: 0;
      border: none;
    }

    /* ========================================
       Features Section
       ======================================== */
    .features {
      padding: 100px 40px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .features h2 {
      text-align: center;
      font-size: 1.8rem;
      margin-bottom: 16px;
      color: var(--holo-text-primary);
    }

    .features .section-subtitle {
      text-align: center;
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.8rem;
      color: var(--holo-text-muted);
      letter-spacing: 0.1em;
      text-transform: uppercase;
      margin-bottom: 60px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .feature-card {
      background: rgba(13, 16, 37, 0.6);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--holo-border);
      border-radius: 12px;
      padding: 32px;
      position: relative;
      overflow: hidden;
      transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s;
    }

    /* Iridescent shimmer */
    .feature-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(
        135deg,
        rgba(0, 229, 255, 0.04) 0%,
        rgba(139, 92, 246, 0.04) 33%,
        rgba(255, 0, 229, 0.04) 66%,
        rgba(0, 229, 255, 0.04) 100%
      );
      background-size: 300% 300%;
      animation: shimmer 8s ease-in-out infinite;
      pointer-events: none;
      border-radius: inherit;
    }

    .feature-card:hover {
      border-color: rgba(0, 229, 255, 0.3);
      box-shadow: var(--holo-glow-cyan);
      transform: translateY(-4px);
    }

    .feature-card .card-label {
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.7rem;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--holo-cyan);
      margin-bottom: 16px;
    }

    .feature-card .card-icon {
      width: 48px;
      height: 48px;
      border: 1px solid rgba(0, 229, 255, 0.2);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      background: rgba(0, 229, 255, 0.05);
    }

    .feature-card h3 {
      font-size: 1.05rem;
      margin-bottom: 12px;
      letter-spacing: 0.06em;
    }

    .feature-card p {
      color: var(--holo-text-secondary);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    /* ========================================
       Stats Bar
       ======================================== */
    .stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--holo-grid);
      max-width: 1200px;
      margin: 0 auto;
    }

    .stat {
      background: var(--holo-bg-deep);
      padding: 40px 32px;
      text-align: center;
    }

    .stat-value {
      font-family: 'Orbitron', sans-serif;
      font-size: 2rem;
      font-weight: 700;
      background: var(--holo-gradient);
      background-size: 200% auto;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: holo-shift 5s linear infinite;
      margin-bottom: 8px;
    }

    .stat-label {
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.7rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--holo-text-muted);
    }

    /* ========================================
       Holographic Panel / Showcase
       ======================================== */
    .showcase {
      padding: 100px 40px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .showcase-text h2 {
      font-size: 1.6rem;
      margin-bottom: 1rem;
      text-align: left;
    }

    .showcase-text p {
      color: var(--holo-text-secondary);
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .showcase-text ul {
      list-style: none;
      padding: 0;
    }

    .showcase-text ul li {
      padding: 8px 0;
      padding-left: 24px;
      position: relative;
      color: var(--holo-text-secondary);
      font-size: 0.9rem;
    }

    .showcase-text ul li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 8px;
      height: 8px;
      background: var(--holo-cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
    }

    .showcase-visual {
      position: relative;
      padding: 2px;
      border-radius: 16px;
      overflow: hidden;
    }

    /* Animated iridescent border */
    .showcase-visual::before {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: inherit;
      background: linear-gradient(
        135deg,
        var(--holo-cyan),
        var(--holo-violet),
        var(--holo-magenta),
        var(--holo-pink),
        var(--holo-cyan)
      );
      background-size: 400% 400%;
      animation: shimmer 6s ease-in-out infinite;
      z-index: 0;
    }

    .showcase-panel {
      position: relative;
      z-index: 1;
      background: var(--holo-bg-nebula);
      border-radius: 14px;
      padding: 40px;
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.8rem;
    }

    .panel-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(0, 229, 255, 0.1);
    }

    .panel-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--holo-cyan);
      box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
    }

    .panel-dot.magenta { background: var(--holo-magenta); box-shadow: 0 0 8px rgba(255, 0, 229, 0.5); }
    .panel-dot.violet { background: var(--holo-violet); box-shadow: 0 0 8px rgba(139, 92, 246, 0.5); }

    .panel-title {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.65rem;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--holo-text-muted);
    }

    .panel-line {
      padding: 4px 0;
      color: var(--holo-text-secondary);
    }

    .panel-line .key { color: var(--holo-cyan); }
    .panel-line .val { color: var(--holo-text-primary); }
    .panel-line .comment { color: var(--holo-text-muted); }

    /* ========================================
       CTA Section
       ======================================== */
    .cta {
      text-align: center;
      padding: 100px 40px;
      position: relative;
      overflow: hidden;
    }

    .cta::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 600px;
      height: 600px;
      background: radial-gradient(
        circle,
        rgba(139, 92, 246, 0.06) 0%,
        rgba(255, 0, 229, 0.03) 40%,
        transparent 70%
      );
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
    }

    .cta h2 {
      font-size: 2rem;
      margin-bottom: 1rem;
      background: var(--holo-gradient);
      background-size: 200% auto;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: holo-shift 5s linear infinite;
    }

    .cta p {
      color: var(--holo-text-secondary);
      font-size: 1.05rem;
      max-width: 500px;
      margin: 0 auto 2rem;
    }

    /* ========================================
       Footer
       ======================================== */
    footer {
      padding: 32px 40px;
      text-align: center;
      color: var(--holo-text-muted);
      font-family: 'IBM Plex Mono', monospace;
      font-size: 0.75rem;
      letter-spacing: 0.08em;
      border-top: 1px solid var(--holo-grid);
    }

    footer a {
      color: var(--holo-cyan);
      text-decoration: none;
    }

    footer a:hover {
      text-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
    }

    /* ========================================
       Responsive
       ======================================== */
    @media (max-width: 768px) {
      nav {
        padding: 14px 20px;
      }

      nav ul {
        gap: 16px;
      }

      .hero {
        min-height: auto;
        padding: 100px 20px 60px;
      }

      .features {
        padding: 60px 20px;
      }

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

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

      .showcase {
        padding: 60px 20px;
      }

      .showcase-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .cta {
        padding: 60px 20px;
      }
    }
  </style>
</head>
<body>

  <!-- Navigation -->
  <nav>
    <a href="#" class="logo">Prism//OS</a>
    <ul>
      <li><a href="#" class="active">Dashboard</a></li>
      <li><a href="#">Systems</a></li>
      <li><a href="#">Analytics</a></li>
      <li><a href="#">Deploy</a></li>
    </ul>
  </nav>

  <!-- Hero Section -->
  <section class="hero">
    <div class="particles">
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
      <div class="particle"></div>
    </div>
    <div class="hero-content">
      <div class="subtitle">[ Holographic Interface v4.2 ]</div>
      <h1>Light-Based Computing</h1>
      <p>Next-generation photonic interface systems. Translucent control surfaces projected through coherent light arrays for zero-latency interaction.</p>
      <div class="btn-group">
        <a href="#" class="btn">Initialize System</a>
        <a href="#" class="btn btn--magenta">View Spectrum</a>
      </div>
    </div>
  </section>

  <hr class="divider">

  <!-- Features Section -->
  <section class="features">
    <h2>Core Systems</h2>
    <div class="section-subtitle">// Active Holographic Modules</div>
    <div class="features-grid">
      <div class="feature-card">
        <div class="card-label">sys.projection</div>
        <div class="card-icon">
          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#00e5ff" stroke-width="1.5">
            <polygon points="12,2 22,8.5 22,15.5 12,22 2,15.5 2,8.5"/>
            <line x1="12" y1="2" x2="12" y2="22"/>
            <line x1="2" y1="8.5" x2="22" y2="8.5"/>
          </svg>
        </div>
        <h3>Photon Rendering</h3>
        <p>Real-time holographic projection engine with prismatic light diffraction. Sub-pixel accuracy across multi-layer translucent displays.</p>
      </div>
      <div class="feature-card">
        <div class="card-label">sys.spectral</div>
        <div class="card-icon">
          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#8b5cf6" stroke-width="1.5">
            <circle cx="12" cy="12" r="10"/>
            <path d="M12 2 A10 10 0 0 1 22 12"/>
            <circle cx="12" cy="12" r="4"/>
          </svg>
        </div>
        <h3>Spectral Analysis</h3>
        <p>Full-spectrum chromatic decomposition for data visualization. Map complex datasets onto iridescent color gradients with real-time updates.</p>
      </div>
      <div class="feature-card">
        <div class="card-label">sys.interface</div>
        <div class="card-icon">
          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#ff00e5" stroke-width="1.5">
            <rect x="3" y="3" width="18" height="18" rx="3"/>
            <line x1="3" y1="9" x2="21" y2="9"/>
            <line x1="9" y1="9" x2="9" y2="21"/>
          </svg>
        </div>
        <h3>Gesture Control</h3>
        <p>Mid-air gesture recognition through photonic field detection. Interact with holographic panels without physical contact surfaces.</p>
      </div>
    </div>
  </section>

  <hr class="divider">

  <!-- Stats Bar -->
  <section class="stats">
    <div class="stat">
      <div class="stat-value">99.97%</div>
      <div class="stat-label">Projection Uptime</div>
    </div>
    <div class="stat">
      <div class="stat-value">0.3ms</div>
      <div class="stat-label">Render Latency</div>
    </div>
    <div class="stat">
      <div class="stat-value">16M</div>
      <div class="stat-label">Color Channels</div>
    </div>
    <div class="stat">
      <div class="stat-value">512</div>
      <div class="stat-label">Layer Depth</div>
    </div>
  </section>

  <hr class="divider">

  <!-- Showcase / Panel Section -->
  <section class="showcase">
    <div class="showcase-grid">
      <div class="showcase-text">
        <h2>Translucent Layer Architecture</h2>
        <p>Our holographic rendering pipeline supports up to 512 independent translucent layers, each with individual opacity, blur, and chromatic shift controls.</p>
        <ul>
          <li>Dynamic depth sorting with parallax response</li>
          <li>Per-layer iridescent color mapping</li>
          <li>Adaptive luminance based on ambient light</li>
          <li>Zero-latency gesture passthrough across layers</li>
        </ul>
      </div>
      <div class="showcase-visual">
        <div class="showcase-panel">
          <div class="panel-header">
            <span class="panel-dot"></span>
            <span class="panel-dot magenta"></span>
            <span class="panel-dot violet"></span>
            <span class="panel-title">System Diagnostics</span>
          </div>
          <div class="panel-line"><span class="comment">// Holographic render pipeline</span></div>
          <div class="panel-line"><span class="key">projection_mode</span>: <span class="val">coherent_light</span></div>
          <div class="panel-line"><span class="key">layer_count</span>: <span class="val">128 active</span></div>
          <div class="panel-line"><span class="key">chromatic_shift</span>: <span class="val">enabled</span></div>
          <div class="panel-line"><span class="key">diffraction_idx</span>: <span class="val">0.9847</span></div>
          <div class="panel-line"><span class="key">spectral_range</span>: <span class="val">380nm - 740nm</span></div>
          <div class="panel-line"><span class="key">opacity_layers</span>: <span class="val">[0.15, 0.30, 0.60, 0.85]</span></div>
          <div class="panel-line"><span class="comment">// All systems nominal</span></div>
          <div class="panel-line"><span class="key">status</span>: <span style="color: var(--holo-teal);">OPERATIONAL</span></div>
        </div>
      </div>
    </div>
  </section>

  <hr class="divider">

  <!-- CTA Section -->
  <section class="cta">
    <div class="cta-inner">
      <h2>Enter the Light</h2>
      <p>Experience the next evolution of human-computer interaction. Holographic interfaces, projected from pure photonic energy.</p>
      <a href="#" class="btn">Activate Prism//OS</a>
    </div>
  </section>

  <!-- Footer -->
  <footer>
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