Glass Dark

Dark glassmorphism — frosted glass panels layered over deep dark backgrounds for a sleek, premium night-mode feel.

html css javascript

Targets: JS HTML

Code

:root {
  --gd-bg: #080808;
  --gd-blue: rgba(59, 130, 246, 0.3);
  --gd-purple: rgba(139, 92, 246, 0.25);
  --gd-cyan: rgba(6, 182, 212, 0.2);
  --gd-glass-bg: rgba(255, 255, 255, 0.05);
  --gd-glass-border: rgba(255, 255, 255, 0.1);
  --gd-glass-hover: rgba(255, 255, 255, 0.08);
  --gd-text: rgba(255, 255, 255, 0.95);
  --gd-text-muted: rgba(255, 255, 255, 0.45);
  --gd-radius: 20px;
  --font: "Inter", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* ── Background blobs ── */
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  transition: transform 1.5s ease;
}

.blob--blue {
  width: 500px;
  height: 500px;
  background: var(--gd-blue);
  top: -100px;
  left: -100px;
  animation: blobDrift1 18s ease-in-out infinite;
}

.blob--purple {
  width: 600px;
  height: 600px;
  background: var(--gd-purple);
  top: 20%;
  right: -150px;
  animation: blobDrift2 22s ease-in-out infinite;
}

.blob--cyan {
  width: 400px;
  height: 400px;
  background: var(--gd-cyan);
  bottom: -100px;
  left: 30%;
  animation: blobDrift3 16s ease-in-out infinite;
}

@keyframes blobDrift1 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(60px, 40px) scale(1.05);
  }
  66% {
    transform: translate(-30px, 80px) scale(0.95);
  }
}

@keyframes blobDrift2 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  40% {
    transform: translate(-80px, -60px) scale(1.08);
  }
  70% {
    transform: translate(40px, 40px) scale(0.96);
  }
}

@keyframes blobDrift3 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  30% {
    transform: translate(-40px, -30px) scale(1.1);
  }
  60% {
    transform: translate(70px, -20px) scale(0.92);
  }
}

/* ── Page ── */
.page {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ── Header ── */
.header {
  text-align: center;
  margin-bottom: 12px;
}

.header__pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gd-text-muted);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--gd-glass-border);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.header__title {
  font-size: clamp(52px, 10vw, 96px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--gd-text);
}

.header__title span {
  color: transparent;
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
}

.header__tagline {
  margin-top: 20px;
  font-size: 16px;
  font-weight: 300;
  color: var(--gd-text-muted);
  letter-spacing: 0.01em;
}

/* ── Glass card ── */
.glass-card {
  background: var(--gd-glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--gd-glass-border);
  border-radius: var(--gd-radius);
  padding: 28px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: var(--gd-glass-hover);
}

/* ── Profile card ── */
.card-section {
  display: flex;
  justify-content: center;
}

.profile-card {
  width: 100%;
  max-width: 400px;
}

.card__top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.avatar {
  flex-shrink: 0;
  border-radius: 16px;
  overflow: hidden;
}

.card__meta {
  flex: 1;
}

.card__name {
  font-size: 18px;
  font-weight: 600;
  color: var(--gd-text);
  letter-spacing: -0.01em;
}

.card__role {
  font-size: 13px;
  color: var(--gd-text-muted);
  margin-top: 3px;
  font-weight: 400;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e, 0 0 16px rgba(34, 197, 94, 0.4);
  flex-shrink: 0;
}

.card__divider {
  height: 1px;
  background: var(--gd-glass-border);
  margin: 0 0 20px;
}

.card__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.stat {
  text-align: center;
  padding: 12px 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease;
}

.stat:hover {
  background: rgba(255, 255, 255, 0.06);
}

.stat__value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--gd-text);
  letter-spacing: -0.02em;
}

.stat__label {
  display: block;
  font-size: 11px;
  color: var(--gd-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 3px;
  font-weight: 500;
}

/* ── Controls card ── */
.controls-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ── Buttons ── */
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  letter-spacing: 0.01em;
}

.btn--white {
  background: white;
  color: #0a0a0a;
}

.btn--white:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}

.btn--white:active {
  transform: translateY(0);
}

.btn--glass {
  background: rgba(255, 255, 255, 0.08);
  color: var(--gd-text);
  border: 1px solid var(--gd-glass-border);
  backdrop-filter: blur(10px);
}

.btn--glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--gd-text-muted);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn--ghost:hover {
  color: var(--gd-text);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

/* ── Input ── */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field__label {
  font-size: 12px;
  font-weight: 500;
  color: var(--gd-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.glass-input {
  font-family: var(--font);
  font-size: 14px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  color: var(--gd-text);
  outline: none;
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  backdrop-filter: blur(8px);
}

.glass-input:focus {
  border-color: rgba(96, 165, 250, 0.6);
  background: rgba(255, 255, 255, 0.09);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.12);
}

.glass-input::placeholder {
  color: rgba(255, 255, 255, 0.2);
}

/* ── Badges ── */
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid;
  backdrop-filter: blur(8px);
  transition: transform 0.2s ease;
}

.badge:hover {
  transform: translateY(-1px);
}

.badge--blue {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.3);
  color: #93c5fd;
}
.badge--purple {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.3);
  color: #c4b5fd;
}
.badge--cyan {
  background: rgba(6, 182, 212, 0.12);
  border-color: rgba(6, 182, 212, 0.3);
  color: #67e8f9;
}
.badge--white {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
}

/* ── Responsive ── */
@media (max-width: 520px) {
  .page {
    padding: 32px 16px 48px;
    gap: 24px;
  }

  .header__title {
    font-size: clamp(36px, 12vw, 52px);
  }

  .header__pill {
    font-size: 10px;
    padding: 5px 14px;
    margin-bottom: 16px;
  }

  .header__tagline {
    font-size: 14px;
    margin-top: 14px;
  }

  .glass-card {
    padding: 20px;
  }

  .profile-card {
    max-width: 100%;
  }

  .card__top {
    gap: 12px;
    margin-bottom: 16px;
  }

  .card__name {
    font-size: 16px;
  }

  .card__stats {
    gap: 6px;
  }

  .stat {
    padding: 10px 4px;
  }

  .stat__value {
    font-size: 20px;
  }

  .stat__label {
    font-size: 10px;
  }

  .button-row {
    gap: 8px;
  }

  .btn {
    font-size: 13px;
    padding: 10px 16px;
  }

  .blob--blue {
    width: 280px;
    height: 280px;
  }
  .blob--purple {
    width: 320px;
    height: 320px;
  }
  .blob--cyan {
    width: 220px;
    height: 220px;
  }
}

/* Glass Dark — Interactive JS */

(function () {
  "use strict";

  // ── Mouse-tracked blob drift enhancement ──
  const blobBlue = document.getElementById("blobBlue");
  const blobPurple = document.getElementById("blobPurple");
  const blobCyan = document.getElementById("blobCyan");

  let mouseX = 0;
  let mouseY = 0;
  let blobAnimFrame = null;

  document.addEventListener("mousemove", (e) => {
    mouseX = e.clientX / window.innerWidth;
    mouseY = e.clientY / window.innerHeight;

    if (!blobAnimFrame) {
      blobAnimFrame = requestAnimationFrame(updateBlobs);
    }
  });

  function updateBlobs() {
    blobAnimFrame = null;

    // Subtle parallax push on blobs based on mouse (±30px range)
    if (blobBlue) {
      blobBlue.style.translate = `${mouseX * 30}px ${mouseY * 20}px`;
    }
    if (blobPurple) {
      blobPurple.style.translate = `${-mouseX * 25}px ${-mouseY * 30}px`;
    }
    if (blobCyan) {
      blobCyan.style.translate = `${mouseX * 20}px ${-mouseY * 20}px`;
    }
  }

  // ── Entrance animation for stats ──
  const stats = document.querySelectorAll(".stat");
  stats.forEach((stat, i) => {
    stat.style.opacity = "0";
    stat.style.transform = "translateY(12px)";
    stat.style.transition = `opacity 0.5s ease ${0.4 + i * 0.1}s, transform 0.5s ease ${0.4 + i * 0.1}s`;
  });

  requestAnimationFrame(() => {
    requestAnimationFrame(() => {
      stats.forEach((stat) => {
        stat.style.opacity = "1";
        stat.style.transform = "translateY(0)";
      });
    });
  });

  // ── Glass card entrance ──
  const glassCards = document.querySelectorAll(".glass-card");
  glassCards.forEach((card, i) => {
    card.style.opacity = "0";
    card.style.transform = "translateY(20px)";
    card.style.transition = `opacity 0.6s ease ${0.2 + i * 0.15}s, transform 0.6s ease ${0.2 + i * 0.15}s`;
  });

  requestAnimationFrame(() => {
    requestAnimationFrame(() => {
      glassCards.forEach((card) => {
        card.style.opacity = "1";
        card.style.transform = "translateY(0)";
      });
    });
  });

  // ── Input: glowing border pulse on focus ──
  const input = document.getElementById("glassInput");
  if (input) {
    input.addEventListener("focus", () => {
      input.style.boxShadow = "0 0 0 3px rgba(96,165,250,0.15), 0 0 20px rgba(96,165,250,0.1)";
    });
    input.addEventListener("blur", () => {
      input.style.boxShadow = "";
    });
  }

  // ── White button: shimmer on hover ──
  const whiteBtn = document.querySelector(".btn--white");
  if (whiteBtn) {
    whiteBtn.addEventListener("mouseenter", () => {
      whiteBtn.style.background = "#f0f0f0";
    });
    whiteBtn.addEventListener("mouseleave", () => {
      whiteBtn.style.background = "white";
    });
  }

  // ── Status dot pulse animation ──
  const statusDot = document.querySelector(".status-dot");
  if (statusDot) {
    const pulseKeyframes = `
      @keyframes statusPulse {
        0%, 100% { box-shadow: 0 0 8px #22c55e, 0 0 16px rgba(34,197,94,0.4); }
        50%       { box-shadow: 0 0 14px #22c55e, 0 0 28px rgba(34,197,94,0.6), 0 0 40px rgba(34,197,94,0.2); }
      }
    `;
    const style = document.createElement("style");
    style.textContent = pulseKeyframes;
    document.head.appendChild(style);
    statusDot.style.animation = "statusPulse 2s ease-in-out infinite";
  }
})();

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet" />
    <link rel="stylesheet" href="style.css" />
    <title>Glass Dark — Design Style</title>
  </head>
  <body>
    <!-- Background color blobs -->
    <div class="blob blob--blue" id="blobBlue" aria-hidden="true"></div>
    <div class="blob blob--purple" id="blobPurple" aria-hidden="true"></div>
    <div class="blob blob--cyan" id="blobCyan" aria-hidden="true"></div>

    <div class="page">
      <!-- Header -->
      <header class="header">
        <div class="header__pill">Premium Night Mode</div>
        <h1 class="header__title">Glass<br /><span>Dark</span></h1>
        <p class="header__tagline">Frosted glass panels over deep dark atmospheres.</p>
      </header>

      <!-- Profile glass card -->
      <section class="card-section">
        <div class="glass-card profile-card">
          <div class="card__top">
            <div class="avatar">
              <svg width="54" height="54" viewBox="0 0 54 54" fill="none" xmlns="http://www.w3.org/2000/svg">
                <rect width="54" height="54" rx="16" fill="rgba(255,255,255,0.08)"/>
                <rect width="54" height="54" rx="16" fill="none" stroke="rgba(255,255,255,0.15)" stroke-width="1"/>
                <circle cx="27" cy="20" r="10" fill="rgba(59,130,246,0.6)"/>
                <path d="M7 50c0-11.046 8.954-20 20-20s20 8.954 20 20" fill="rgba(59,130,246,0.35)"/>
                <!-- Glow on avatar -->
                <circle cx="27" cy="20" r="10" fill="none" stroke="rgba(59,130,246,0.4)" stroke-width="2"/>
              </svg>
            </div>
            <div class="card__meta">
              <h2 class="card__name">Riley Chen</h2>
              <p class="card__role">AI Engineer</p>
            </div>
            <div class="status-dot" title="Online"></div>
          </div>

          <div class="card__divider"></div>

          <div class="card__stats">
            <div class="stat">
              <span class="stat__value">512</span>
              <span class="stat__label">Models</span>
            </div>
            <div class="stat">
              <span class="stat__value">99.9</span>
              <span class="stat__label">Uptime %</span>
            </div>
            <div class="stat">
              <span class="stat__value">32k</span>
              <span class="stat__label">API Calls</span>
            </div>
          </div>
        </div>
      </section>

      <!-- Controls -->
      <section class="glass-card controls-card">
        <!-- Buttons -->
        <div class="button-row">
          <button class="btn btn--white">Deploy Now</button>
          <button class="btn btn--glass">Settings</button>
          <button class="btn btn--ghost">Docs →</button>
        </div>

        <!-- Input -->
        <div class="field">
          <label class="field__label" for="glassInput">API Endpoint</label>
          <input class="glass-input" id="glassInput" type="text" placeholder="https://api.example.com/v1/..." />
        </div>

        <!-- Badges -->
        <div class="badge-row">
          <span class="badge badge--blue">Glass</span>
          <span class="badge badge--purple">Dark</span>
          <span class="badge badge--cyan">Premium</span>
          <span class="badge badge--white">Blur</span>
        </div>
      </section>
    </div>

    <script src="script.js"></script>
  </body>
</html>

Glass Dark

Glass Dark is the definitive premium dark-mode aesthetic. Deep, near-black backgrounds hold large blurred color blobs — pools of deep blue, violet, and cyan — that create an atmospheric depth layer. On top of this living canvas, frosted glass panels with backdrop-filter: blur() act as the primary UI surface: semi-transparent, light-catching, and visually sophisticated.

The technique works because the eye perceives the blur and tint as actual glass, not just CSS — especially when the background blobs softly animate. This creates the impression of depth stacking: glowing atmosphere behind glass surfaces, which hold crisp white text and sharp interface elements. The contrast between the near-black background, the luminous blobs, and the bright white primary button (solid white on glass is maximum impact) defines the premium quality of the style.

Color palette is intentionally restrained: everything is either rgba(255,255,255,n) or the colors of the background blobs bleeding through the glass. This restraint prevents visual chaos while the backdrop animation provides richness.

Key characteristics

#080808 background with 3 large, blurred color blobs (filter: blur(120px))
Glass cards: rgba(255,255,255,0.05) + backdrop-filter: blur(20px) saturate(180%)
Solid white primary button for maximum contrast pop on glass
Animated blob drift via CSS keyframes toggled by JS
border: 1px solid rgba(255,255,255,0.1) on all glass elements
White/muted-white text hierarchy with no hue shifts needed

When to use it

Glass Dark is the default choice for SaaS product landing pages, crypto/fintech apps, AI tools, music players, and any context where premium, modern, and night-mode are the primary brand values. The backdrop-filter property has broad modern browser support but gracefully degrades to the semi-transparent background alone.