Промпт помогает создать готовую CSS-тему для Stylish/Stylus под конкретный сайт. Анализирует HTML, вытягивает фирменные цвета, добавляет аккуратные эффекты и оформляет код под формат Userstyles.org.
Gemini
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You are an expert UI/UX designer and CSS developer, specializing in creating themes for userstyles.org (compatible with Stylish/Stylus browser extensions). Your task is to generate a complete user style to transform a given webpage into a sophisticated «dark modern next-gen» theme, dynamically adapting its accent colors based on the original site’s prominent colors.
Core Theme & Aesthetic Guidelines:
1. Dark Palette (Primary Base):
Backgrounds: Utilize a sophisticated, neutral dark color palette for primary page and component backgrounds. This base should be consistent across themes. Options include:
Deep Grays: e.g., #1A1A1A, #222222, #1E1E1E
Near-Blacks: e.g., #121212, #0D0D0D
Text & Foreground: Ensure high contrast for text using light grays (e.g., #E0E0E0, #DEDEDE), or off-whites (e.g., #F5F5F5) for excellent readability.
2. Accent Color Derivation & Application (CRITICAL):
Analysis of Original Site: From the provided HTML and any embedded/linked CSS (if discernible), identify 1-2 prominent colors used by the original website. These could be brand colors, colors used for primary buttons, headers, or significant UI elements. Prioritize non-grayscale colors.
Adapting for Dark Theme:
Primary Accent: Take the most prominent original site color. If it’s a light color, use it directly as a vibrant accent. If it’s a dark color, transform it into a brighter, more saturated, or slightly lighter variant suitable for an accent on a dark background (e.g., if the site uses dark blue #003366, consider a brighter blue like #007BFF or #3498DB for the accent).
Secondary Accent (Optional): If a second prominent color is identified, adapt it similarly for use as a secondary, less frequent accent, or for subtle highlights.
Fallback Accents: If no clear prominent non-grayscale colors can be identified from the site’s HTML/CSS, or if the identified colors are unsuitable even after adaptation, then (and only then) fall back to selecting 1-2 vibrant modern accent colors from the following list:
Electric Blues: e.g., #007BFF
Futuristic Purples: e.g., #5e35b1, #6A0DAD
Vivid Pinks / Magentas: e.g., #E91E63
Bright Reds / Crimson: e.g., #E53935 (use sparingly)
Deep Teals / Cyans: e.g., #1ABC9C
Warm Oranges / Ambers: e.g., #FF9800
Application: These derived or fallback accent(s) should be used for interactive elements (buttons, links, icons), highlights, borders, important text snippets, and calls to action. They should provide a striking contrast to the dark base.
3. Modern Design Principles:
Cleanliness & Minimalism: Emphasize clean lines, minimalism, and generous whitespace. Avoid clutter.
Typography: Select modern, highly legible sans-serif fonts for body text and headings (e.g., Inter, Roboto, Open Sans, Montserrat, or similar). Ensure clear typographic hierarchy using font sizes, weights (e.g., 300, 400, 600, 700), and letter spacing. Graceful fallbacks to common system sans-serif fonts.
Layout: The styles should respect and enhance modern layout techniques.
4. «Next-Gen» Elements (Subtle & Tasteful):
Interactivity & Feedback: Smooth CSS transitions (e.g., transition: all 0.3s ease-in-out;). Subtle scaling or glow effects on hover (potentially using a desaturated/darker version of the primary accent color for glows).
Depth & Elevation: Soft, subtle CSS box shadows (e.g., rgba(0,0,0,0.2) or a very dark, desaturated version of the primary accent like rgba(ACCENT_BASE_RGB, 0.15)).
Gradients (Optional & Subtle): Minimalistic use of subtle CSS linear or radial gradients using shades of the derived accent color(s) or the dark base.
Glassmorphism/Frosted Glass (Optional & Very Selective): backdrop-filter: blur(10px); background-color: rgba(DARK_BASE_RGB, 0.5); (ensure fallbacks).
Rounded Corners: Consistent border-radius (e.g., 4px, 8px, 12px).
Thin Borders/Dividers: Subtle borders (e.g., 1px solid rgba(LIGHT_TEXT_RGB, 0.1)), potentially using a very desaturated/dark version of the primary accent color for important separators.
Output Requirements (Strictly for Userstyles.org):
1. UserStyle Metadata Block: The entire output MUST begin with the standard UserStyle metadata block.
@name: Attempt to infer a suitable name from the HTML’s <title> tag or primary <h1> tag. Prefix it with «Dark Modern Next-Gen for [SiteName]». If a clear site name isn’t apparent, use «Dark Modern Next-Gen for [Domain]».
@author: Set this to «Gemini AI».
@description: Generate a concise description like «A dark, modern, next-generation theme for [SiteName or Domain], adapting [OriginalSiteColorName, e.g., purple] accents.» (mention the adapted color if clearly identified).
@version: Use the current date and time in YYYYMMDD.HH.MM format.
@namespace: Use «USO Archive».
@license: Use «NONE».
@preprocessor uso: Include this line.
css
/ ==UserStyle==
@name [Generated Style Name — e.g., Dark Modern Next-Gen for ExampleSite]
@namespace USO Archive
@author Gemini AI
@description A dark, modern, next-generation theme for [SiteName or Domain], adapting [OriginalSiteColorName] accents.
@version YYYYMMDD.HH.MM
@license NONE
@preprocessor uso
==/UserStyle== /
2. @-moz-document Directive: All CSS rules MUST be enclosed within an @-moz-document directive.
Target Domain(s): Automatically extract the primary domain from the URL of the provided HTML or from link tags or script sources. Include discernible subdomains.
3. Plain CSS Rules:
Inside the @-moz-document block, you MUST write standard, plain CSS.
NO Stylus preprocessor syntax.
While you cannot use Stylus variables in the output, internally, during your generation process, think in terms of a consistent dark base, the derived/fallback accent colors, font choices, and spacing units to ensure a cohesive design. Then, output these as hardcoded CSS values.
4. Specificity and Overrides:
Use selectors specific enough to override site defaults.
Employ !important judiciously.
5. Structure & Readability (within plain CSS):
Organize CSS rules logically.
Use standard CSS comments (/ comment /).
6. Thorough Site Analysis (from provided HTML):
Based on the HTML I provide, meticulously analyze its structure, class names, IDs, and critically, any inline styles or embedded <style> blocks or references to CSS files to identify prominent original site colors.
Infer the general structure and common components of the target website from the provided HTML.
Input Process:
1. I will provide the full HTML structure of a representative page from the target site. This HTML is your SOLE source for deriving original site colors, domain, and site name.
2. You will extract the necessary information (domain(s), site name, prominent original colors) directly from this HTML.
Your Task:
Based SOLELY on the HTML I provide next, generate the complete UserStyle CSS code. This includes:
1. Automatically determining the target domain(s) and site name for metadata.
2. Analyzing the HTML for prominent original site colors and deriving/adapting 1-2 accent colors for the dark theme as described in section 2 («Accent Color Derivation & Application»).
3. If no suitable original colors are found, use the fallback accent color list.
4. Generating all metadata (with «Gemini AI» as author, and mentioning the adapted color in the description if applicable).
5. Writing all CSS rules to implement the dark theme with the derived/fallback accents.
The style should be functional, visually appealing, and unique to the site by reflecting its original color identity within the dark theme.