Under the hood
Techniques this site uses in production: modern CSS only, no jQuery, no Sass.
nav {
position: sticky;
top: 0;
background: var(--nav-bg);
border-bottom: 1px solid var(--border);
}position: sticky Scroll this page The nav stays put while you scroll
The bar uses position: sticky and top: 0. It stays in view without JavaScript, without a duplicate fixed clone, and without scroll listeners. The background is a flat var(--nav-bg) so type stays readable.
:root {
--text: light-dark(#1a1a2e, #e4e4e7);
--bg: light-dark(#f8f8fa, #0b0b0f);
--accent: light-dark(#0069c2, #8cb4ff);
}light-dark() Active on :root One value for both themes
light-dark() takes two values. The browser picks based on the user's OS preference. No separate dark mode stylesheet. No class toggling for every color.
.hero h1 {
font-size: clamp(2.4rem, 5.5vw, 3.5rem);
/* min: 2.4rem, preferred: 5.5vw, max: 3.5rem */
}clamp() Resize the window Typography that scales itself
The homepage heading grows and shrinks with the viewport. clamp() sets a floor, a preferred size, and a ceiling. No breakpoints. No media queries for type.
.parent {
display: grid;
place-items: center;
}place-items: center Used site-wide Centering in two properties
The old way was position: absolute with transform: translate(-50%, -50%). Now it's display: grid + place-items: center. The child needs nothing.
:root {
--font-sans: 'Lexend', system-ui, sans-serif;
--font-mono: 'Commit Mono', monospace;
}
body {
font-family: var(--font-sans);
}--font-sans Lexend + Commit Mono One token for the UI typeface
UI copy uses var(--font-sans) (Lexend with system fallbacks). Code and the logo use var(--font-mono) (Commit Mono). Change either token to retune typography in one place.
@keyframes pulse {
0%, 100% { opacity: 1 }
50% { opacity: .3 }
}
.pulse-dot {
animation: pulse 2s ease-in-out infinite;
}@keyframes See the dot above The blinking dot is one animation
The dot fades in and out on a loop. One @keyframes rule, two opacity values, applied wherever needed with a single animation property.
:root {
color-scheme: dark;
}
:root.light {
color-scheme: light;
}color-scheme Active on :root The browser knows this is a dark site
color-scheme tells the browser the page's default theme. Scrollbars, form inputs, and system UI elements all adapt. No manual overrides for every browser chrome detail.
:root {
--radius: 6px;
--accent: light-dark(#0069c2, #8cb4ff);
--border: light-dark(#d8d8e0, #25252f);
}--custom-properties Used everywhere One place to change everything
Colors, radius, and spacing live in custom properties on :root. Changing the accent color means updating one value. Not hunting through 300 lines of stylesheet.
:is(h1, h2, h3, h4) {
text-wrap: balance;
}text-wrap: balance Headings site-wide Headlines that break more evenly
Headings use text-wrap: balance so the last line is not a lonely word.
.nav-inner {
display: flex;
gap: 12px;
/* works in grid too */
}gap Nav, cards, grids Spacing without margin tricks
gap controls spacing between flex or grid children from the parent. No margin-right on every child. No :last-child { margin: 0 } fixes. The parent handles it.
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
animation-duration: 0.01ms !important;
transition-duration: 0.01ms !important;
}
}prefers-reduced-motion All animations Animations stop when the OS asks
Some users turn off motion in their OS settings due to vestibular disorders or personal preference. One media query at the end of the stylesheet collapses all transitions and animations to near-instant for those users.
More info →.snippet-section {
scroll-margin-top: 80px;
/* clears the sticky nav on anchor jump */
}scroll-margin-top Snippet sections Anchor links clear the nav
Without this, clicking an anchor link on a sticky-nav page hides the top of the target section behind the nav. scroll-margin-top adds offset. No JavaScript scroll handler.