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glass-dark-ui

Create dark interfaces with frosted glass panels, gradient borders, and subtle glow. The skill provides CSS and Tailwind patterns for cards, hero sections, and dashboards, with checks for readable contrast, visible focus, and mobile behavior.

OriginalShow the original description

Build dark-mode glassmorphism interfaces with readable contrast, frosted surfaces, and gradient borders using a pseudo-element mask. Use when asked for glass cards, frosted dark hero sections, blur panels, or dark UI systems with gradient/glow borders.

See how to install

Good for

  • Create a dark frosted glass hero section
  • Convert a bright interface to dark glass styling
  • Add gradient borders to cards and modals
  • Style a dashboard with translucent panels

Files included (4)

  • SKILL.md3.1 KB
  • demo/index.html16.2 KB
  • demo/preview.jpg52.1 KB
  • demo/PROMPT.md1.9 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Glass Dark UI Skill

Workflow

  1. Confirm environment (HTML/CSS, Tailwind, or React) and target surface (hero, dashboard, modal, card).
  2. Define dark UI tokens first (background, glass fill, border glow, primary text, muted text).
  3. Build frosted panels with backdrop-filter, transparent dark fill, and subtle inner highlight.
  4. Apply the masked gradient border (.border-gradient::before) to key surfaces.
  5. Add restrained depth (shadow + glow) and clear hover/focus states.
  6. Validate contrast and mobile behavior before finalizing.

Base Tokens

Use these as defaults and tune per brand.

:root {
  --bg-0: #020617;
  --bg-1: #0b1220;
  --glass-fill: rgba(15, 23, 42, 0.45);
  --glass-fill-strong: rgba(15, 23, 42, 0.62);
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #60a5fa;
}

Glass Panel Pattern

.glass-panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  background-color: var(--glass-fill);
  border-radius: 24px;
  box-shadow: 0 20px 48px rgba(2, 6, 23, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

Border Gradient Pattern

.border-gradient {
  position: relative;
}

.border-gradient::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  background: linear-gradient(
    145deg,
    rgba(148, 163, 184, 0.28) 0%,
    rgba(96, 165, 250, 0.36) 45%,
    rgba(168, 85, 247, 0.3) 70%,
    rgba(148, 163, 184, 0.18) 100%
  );
  pointer-events: none;
}

Tailwind Usage Pattern

<section class="relative rounded-3xl border-gradient bg-slate-950/45 backdrop-blur-xl p-8 shadow-[0_20px_48px_rgba(2,6,23,0.45),inset_0_1px_0_rgba(255,255,255,0.12)]">
  <h2 class="text-slate-100 text-2xl font-semibold">Frosted Panel</h2>
  <p class="text-slate-400 mt-2">Dark glass card with masked gradient border.</p>
</section>

Dark Mode Checklist

  • Keep body text at least #cbd5e1 on dark glass surfaces.
  • Avoid pure black overlays over blur; use deep navy/charcoal alpha instead.
  • Limit glow radius/intensity to preserve readability.
  • Ensure focus rings are visible (outline or bright border state).
  • Add fallback for non-blur environments: stronger solid background (--glass-fill-strong).

Common Requests This Skill Should Handle

  • "Create a dark glass hero section with glowing border cards."
  • "Convert this bright UI to dark glassmorphism without losing contrast."
  • "Add border gradient glow to a frosted navbar/card/modal."
  • "Make my dark dashboard feel premium with glass panels and subtle depth."

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