Welcome Back

Sign in to your account

Forgot your password?

😓 The Problem

Traditional Approach

You need separate components for every background:

<LoginForm variant="light" />
<LoginForm variant="dark" />
<LoginForm variant="purple" />
<LoginForm variant="blue" />

The Result

Explosion of variant classes and maintenance hell:

.button-light { color: #000; }
.button-dark { color: #fff; }
.input-light { border: #ccc; }
.input-dark { border: #444; }
... 100s more variants

🎨 The Color Ramp

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

Each appearance has a complete 15-step scale from lightest to darkest

🎨 Full Color Palette

neutral

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

accent

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

info

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

success

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

warning

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

danger

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500

🎯 Object Containers at Each Level

100
100
M
S
B
D
200
200
M
S
B
D
300
300
M
S
B
D
400
400
M
S
B
D
500
500
M
S
B
D
600
600
M
S
B
D
700
700
M
S
B
D
800
800
M
S
B
D
900
900
M
S
B
D
1000
1000
M
S
B
D
1100
1100
M
S
B
D
1200
1200
M
S
B
D
1300
1300
M
S
B
D
1400
1400
M
S
B
D
1500
1500
M
S
B
D

The Scale & Mapping

100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
200
Minimal
300
Subtle
1500
Base
100
Default

Anatomy of a Contextual Component

Welcome Back

Sign in to your account

Forgot your password?
Surface Container
Emphasis: None
Maps to: Ghost
Input Field
Emphasis: Low
Maps to: Minimal
Primary Action
Emphasis: High
Maps to: Base
Auto-inverts based on context!

Surface Routing Logic

React Flow

Parent declares its level

100
500
1000
1500
--level: 400;

Set either fixed with data-level or by choosing the right level through emphasis

Container queries check parent & emphasis

@container style(--level: 100) {
  [data-emphasis='minimal'] {
    @mixin color-object 200;
  }
  [data-emphasis='subtle'] {
    @mixin color-object 300;
  }
}

After checking parent level, we check emphasis to resolve the right level

100
minimal
Level 200
100
subtle
Level 300

Component uses tokens

Current: Mixins

Mixin Definition:

@define-mixin color-object $level {
  --level: $(level);
  --fg-default: var(--color-object-$(level)-fg-default);
  --fg-subtle: var(--color-object-$(level)-fg-subtle);
  --fg-minimal: var(--color-object-$(level)-fg-minimal);
  --bg: var(--color-object-$(level)-bg);
  --stroke-minimal: var(--color-object-$(level)-stroke-minimal);
  --stroke-subtle: var(--color-object-$(level)-stroke-subtle);
  --stroke-default: var(--color-object-$(level)-stroke-default);
  --stroke-strong: var(--color-object-$(level)-stroke-strong);
}

Mixin Call:

@container style(--level: 100) {
  [data-emphasis='minimal'] {
    @mixin color-object 200;
  }
}

Future: CSS Mixins

Mixin Definition:

@mixin color-object(--level) {
  --level: var(--level);
  --fg-default: var(--color-object-var(--level)-fg-default);
  --fg-subtle: var(--color-object-var(--level)-fg-subtle);
  --fg-minimal: var(--color-object-var(--level)-fg-minimal);
  --bg: var(--color-object-var(--level)-bg);
  --stroke-minimal: var(--color-object-var(--level)-stroke-minimal);
  --stroke-subtle: var(--color-object-var(--level)-stroke-subtle);
  --stroke-default: var(--color-object-var(--level)-stroke-default);
  --stroke-strong: var(--color-object-var(--level)-stroke-strong);
}

Mixin Call:

@container style(--level: 100) {
  [data-emphasis='minimal'] {
    @apply color-object(200);
  }
}

Currently using PostCSS mixins, but native CSS mixins (coming soon) will provide better type safety and tooling support

✨ The Result

Before: Variant Hell

<LoginForm variant="light" />
<LoginForm variant="dark" />
<LoginForm variant="purple" />
... 100s more variants

After: Context-Aware

<LoginForm />
That's it!
Works everywhere automatically

One component works everywhere.
No variants. No manual overrides.
Just context-aware design.