jedmund-svelte/src/lib/components/Header.svelte

113 lines
2.5 KiB
Svelte

<script lang="ts">
import Avatar from './Avatar.svelte'
import SegmentedController from './SegmentedController.svelte'
let scrollY = $state(0)
// Smooth gradient opacity from 0 to 1 over the first 100px of scroll
let gradientOpacity = $derived(Math.min(scrollY / 100, 1))
// Padding transition happens more quickly
let paddingProgress = $derived(Math.min(scrollY / 50, 1))
$effect(() => {
let ticking = false
const updateScroll = () => {
scrollY = window.scrollY
ticking = false
}
const handleScroll = () => {
if (!ticking) {
requestAnimationFrame(updateScroll)
ticking = true
}
}
// Set initial value
scrollY = window.scrollY
window.addEventListener('scroll', handleScroll, { passive: true })
return () => window.removeEventListener('scroll', handleScroll)
})
</script>
<header
class="site-header"
style="--gradient-opacity: {gradientOpacity}; --padding-progress: {paddingProgress}"
>
<div class="header-content">
<a href="/about" class="header-link" aria-label="@jedmund">
<Avatar />
</a>
<SegmentedController />
</div>
</header>
<style lang="scss">
.site-header {
position: sticky;
top: 0;
z-index: 100;
display: flex;
justify-content: center;
// Smooth padding transition based on scroll
padding: calc($unit-5x - ($unit-5x - $unit-2x) * var(--padding-progress)) 0;
pointer-events: none;
// Add a very subtle transition to smooth out any remaining jitter
transition: padding 0.1s ease-out;
&::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
height: 120px;
background: linear-gradient(
to bottom,
rgba(0, 0, 0, 0.15),
transparent
);
backdrop-filter: blur(6px);
-webkit-backdrop-filter: blur(6px);
mask-image: linear-gradient(to bottom, black 0%, black 15%, transparent 90%);
-webkit-mask-image: linear-gradient(to bottom, black 0%, black 15%, transparent 90%);
pointer-events: none;
z-index: -1;
opacity: var(--gradient-opacity);
// Add a very subtle transition to smooth out any remaining jitter
transition: opacity 0.1s ease-out;
}
}
.header-content {
display: flex;
align-items: center;
gap: $unit-3x;
pointer-events: auto;
}
.header-link {
display: flex;
align-items: center;
text-decoration: none;
height: 52px; // Reduced by 4px for optical balance
:global(.face-container) {
height: 52px;
width: 52px;
}
:global(svg) {
height: 100%;
width: 100%;
transition: transform 0.2s ease;
}
&:hover {
:global(svg) {
transform: scale(1.05);
}
}
}
</style>