Hotaru design system

---
version: alpha
name: Hotaru
description: "Dark interface measured from hotarusouthport.com: Jost type with Poppins, orange accents, flat surfaces and pill-shaped controls."
colors:
  background: "#000000"
  surface: "#000000"
  on-surface: "#FFFFFF"
  on-background: "#FFFFFF"
  overlay: "#00000066"
  overlay-strong: "#FFFFFF66"
  outline: "#C9AB814D"
  outline-variant: "#FFFFFF1A"
  primary: "#C9AB81"
  on-primary: "#000000"
typography:
  headline-display:
    fontFamily: Jost
    fontSize: 95px
    fontWeight: 400
    lineHeight: 1.1
    letterSpacing: -0.02em
  headline-lg:
    fontFamily: Jost
    fontSize: 44px
    fontWeight: 400
    lineHeight: 1.3
  headline-md:
    fontFamily: Poppins
    fontSize: 30px
    fontWeight: 400
  headline-sm:
    fontFamily: Poppins
    fontSize: 29px
    fontWeight: 400
    lineHeight: 1.6
  title-lg:
    fontFamily: Jost
    fontSize: 22.5px
    fontWeight: 600
    letterSpacing: 0.089em
  body-md:
    fontFamily: Poppins
    fontSize: 16px
    fontWeight: 400
  body-lg:
    fontFamily: Poppins
    fontSize: 18px
    fontWeight: 400
    lineHeight: 1.78
  body-sm:
    fontFamily: Poppins
    fontSize: 14px
    fontWeight: 400
    letterSpacing: 0.08em
  label-md:
    fontFamily: Poppins
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.88
    letterSpacing: 0.031em
  headline-display-mobile:
    fontFamily: Jost
    fontSize: 40px
    fontWeight: 400
    lineHeight: 1.38
    letterSpacing: -0.015em
  headline-lg-mobile:
    fontFamily: Jost
    fontSize: 32px
    fontWeight: 400
    lineHeight: 1.3
rounded:
  sm: 16px
  md: 30px
  lg: 40px
  xl: 50px
  full: 9999px
spacing:
  xs: 4px
  sm: 8px
  md: 12px
  lg: 24px
  xl: 40px
  gutter: 8px
  section: 60px
  margin: 15px
components:
  button-ghost:
    textColor: "{colors.on-surface}"
    typography: "{typography.body-md}"
    rounded: "{rounded.xl}"
    padding: 12px 50px
  link:
    textColor: "{colors.on-surface}"
---

# Hotaru Design System

## Overview

Hotaru describes itself as: “Modern Japanese omakase dining in Southport, CT. Premium sushi, nigiri, wagyu & caviar. Dine-in, takeout & delivery on Post Road, Fairfield County.” The interface is dark, built on **Near Black (#000000)** with **White (#FFFFFF)** text, and **Orange (#C9AB81)** as the main accent.

Type is set in **Jost** and **Poppins**. Headlines run large with tight negative tracking; body text is 16px. The surface language is flat. Controls are pill-shaped.

Measured from [hotarusouthport.com](https://hotarusouthport.com/) on November 5, 2026 at 1440×900 and 390×844 from 151 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 8 roles, plus gradient stops #C9AB81, #D7B57B.

- **Near Black (#000000):** Page background, seen 2 times. Token `background`.
- **White (#FFFFFF):** Primary text and headings, seen 45 times. Token `on-surface`.
- **Near Black 40% (#00000066):** Translucent fill for cards and controls, seen 4 times. Token `overlay`.
- **White 40% (#FFFFFF66):** Stronger translucent fill, seen 4 times. Token `overlay-strong`.
- **Orange 30% (#C9AB814D):** Borders and dividers, seen 8 times. Token `outline`.
- **White 10% (#FFFFFF1A):** Secondary dividers, seen 2 times. Token `outline-variant`.
- **Orange (#C9AB81):** Most used accent color, seen 60 times. Token `primary`.
- **Near Black (#000000):** Text and icons on primary. Token `on-primary`.

## Typography

**Jost** and **Poppins** share the interface. Fallback stack: `Jost, sans-serif`. Other loaded fonts: Cormorant Garamond.

- **headline-display:** Jost 95px at weight 400, line height 1.1, tracking -0.02em (40px on mobile). Page title (h1).
- **headline-lg:** Jost 44px at weight 400, line height 1.3 (32px on mobile). Section headings (h2).
- **headline-md:** Poppins 30px at weight 400. Sub-section headings.
- **headline-sm:** Poppins 29px at weight 400, line height 1.6. Card and feature titles.
- **title-lg:** Jost 22.5px at weight 600, tracking 0.089em. Small titles.
- **body-md:** Poppins 16px at weight 400. Body text.
- **body-lg:** Poppins 18px at weight 400, line height 1.78. Lead paragraphs.
- **body-sm:** Poppins 14px at weight 400, tracking 0.08em. Secondary and small text.
- **label-md:** Poppins 16px at weight 500, line height 1.88, tracking 0.031em. Buttons, navigation and labels.

## Layout

Spacing does not follow a strict grid: 47% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 4px, sm 8px, md 12px, lg 24px, xl 40px.
- **Sections:** 60px vertical padding between major sections.
- **Gaps:** 8px is the most common gap in flex and grid layouts.
- **Page margin:** 15px on each side of full-width sections.
- **Breakpoints:** 480px, 500px, 576px, 767px, 768px, 991px, 992px, 1024px, 1025px, 1200px, 1215px, 1280px, 1366px, 1399px, 1400px, 1600px.

## Elevation & Depth

The design is flat: no shadows were measured. Hierarchy comes from color contrast and #C9AB814D borders.

## Shapes

Interactive controls are pill-shaped. Measured radii, most used first:

- **full (9999px):** 44 elements.
- **md (30px):** 24 elements.
- **xl (50px):** 16 elements.
- **sm (16px):** 12 elements.
- **lg (40px):** 8 elements.

## Components

Measured from the rendered page. Token values reference the tokens above.

- **button-ghost (“Order Now”):** transparent fill, #FFFFFF text, 16px/400, 50px radius, padding 12px 50px.
- **link:** transparent fill, #FFFFFF text, padding 0px.

## Do's and Don'ts

- Do use #000000 for the page.
- Do reserve #C9AB81 for primary actions and key highlights.
- Do set headlines in Jost with tight tracking (-0.02em).
- Do reuse the measured spacing steps (8px, 12px, 24px).
- Do make buttons and chips fully rounded (9999px); most other elements use 30px corners.
- Don't add drop shadows for depth; use borders and contrast.
- Don't introduce new font families beyond Jost and Poppins.
- Don't use #C9AB81 for large backgrounds or body text.
- Don't make interface transitions slower than 0.6s.

## Motion

Interface transitions are quick: 0.3s, 0.2s, 0.4s, 0.6s. Longer ambient animations run 1.5s.

- **Easing:** `ease`, `ease-in-out`, `cubic-bezier(0.25, 0.46, 0.45, 0.94)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

Generated by [Sitepeel](https://sitepeel.dev/design-md/hotarusouthport.com/), the free DESIGN.md generator (engine 2026.10.29+b828a475ee10).