/* =====================================================================================
premium.css — a dependency-free "premium 2026" UI/motion utility layer
-------------------------------------------------------------------------------------
Zero external requests. No build step. No Tailwind. Works from file://.
Everything is a plain class prefixed `pm-` so it can be dropped into any page
without colliding with existing styles.
Techniques distilled from: linear.app, vercel.com, resend.com, clerk.com,
stripe.com, ui.aceternity.com, magicui.design, 21st.dev, ui.shadcn.com.
See NOTES.md for the research writeup and per-technique sourcing.
TABLE OF CONTENTS
01 Design tokens (colour, type, space, motion)
02 Reset + base typography
03 Type scale utilities
04 Layout: container, section, stack, grid, bento
05 Surfaces: card, glass, hairlines, dividers
06 Backgrounds: grid, dots, mesh, aurora, spotlight, beams, noise, vignette,
starfield
07 Animated borders: beam, conic, shine, glow ring
08 Glow, bloom and depth
09 Text effects: gradient, shimmer, aurora, typewriter, scramble, split, highlight
10 Buttons, badges, pills, inputs
11 Motion: scroll reveal, stagger, marquee, tilt, spotlight-follow, magnetic
12 Scroll-linked: progress bar, sticky scroll, parallax
13 Micro-components: stat, ticker, node beam, orbit, ripple, meteors,
skeleton shimmer, tap ripple, checkmark draw, pulsing border
14 Reduced motion + print
===================================================================================== */
/* =====================================================================================
01 DESIGN TOKENS
-------------------------------------------------------------------------------------
Colour approach (this is the single biggest "expensive" lever on dark UI):
1. ONE ink base, never pure #000. Linear ships #08090a; Vercel #000 with #111/#333
"accents"; Resend #000 + Radix alpha scales. Pure black kills the sense of depth
because nothing can sit *below* it. We use #08090a and go up from there.
2. Surfaces are ALPHA WHITE over the base, not opaque greys. rgba(255,255,255,.02..06)
composites with whatever gradient/mesh sits behind, so panels feel lit by the scene
instead of pasted on top. Opaque greys are what make dark pages look muddy.
3. Every raised surface gets a 1px *inset top highlight* (`inset 0 1px 0 rgba(255,255,255,.06)`)
— a simulated light source above the page. This one shadow does 80% of the work.
4. Colour lives in the LIGHT, not the fill: near-neutral panels, saturated colour only
in glows, gradients, beams and 1–2 accent moments per screen.
5. Text is a 3-step ramp (#f7f8f8 / #b4bcd0 / #8a8f98 — Linear's exact ramp). Body copy
is never pure white; pure white on near-black vibrates.
===================================================================================== */
:root {
/* ---- ink + surfaces ------------------------------------------------------------- */
--pm-bg: #08090a; /* page base — near-black, faintly blue */
--pm-bg-1: #0f1011; /* raised panel */
--pm-bg-2: #141516; /* raised panel, second step */
--pm-bg-3: #191a1b; /* input / inset wells */
--pm-surface: rgba(255, 255, 255, 0.024);
--pm-surface-2: rgba(255, 255, 255, 0.045);
--pm-surface-3: rgba(255, 255, 255, 0.075);
/* ---- hairlines ------------------------------------------------------------------ */
--pm-line: rgba(255, 255, 255, 0.075);
--pm-line-2: rgba(255, 255, 255, 0.125);
--pm-line-3: rgba(255, 255, 255, 0.20);
--pm-highlight: rgba(255, 255, 255, 0.07); /* the inset top rim */
/* ---- text ramp ------------------------------------------------------------------ */
--pm-text: #f7f8f8;
--pm-text-2: #b4bcd0;
--pm-text-3: #8a8f98;
--pm-text-4: #62666d;
/* ---- accents -------------------------------------------------------------------- */
--pm-accent: #7c6cff; /* violet — primary */
--pm-accent-2: #38bdf8; /* cyan */
--pm-accent-3: #f472b6; /* pink */
--pm-accent-4: #ffaa40; /* amber */
--pm-accent-ink: #ffffff;
/* Pre-mixed alpha versions of the accent for glow/tint (avoids color-mix() support
questions and keeps everything one hop from the token). */
--pm-accent-a08: rgba(124, 108, 255, 0.08);
--pm-accent-a16: rgba(124, 108, 255, 0.16);
--pm-accent-a32: rgba(124, 108, 255, 0.32);
--pm-accent-a64: rgba(124, 108, 255, 0.64);
/* ---- radii (Linear's ladder) ----------------------------------------------------- */
--pm-r-4: 4px; --pm-r-6: 6px; --pm-r-8: 8px;
--pm-r-12: 12px; --pm-r-16: 16px; --pm-r-24: 24px; --pm-r-32: 32px;
--pm-r-pill: 9999px;
/* ---- spacing rhythm -------------------------------------------------------------- */
--pm-1: 4px; --pm-2: 8px; --pm-3: 12px; --pm-4: 16px; --pm-5: 24px;
--pm-6: 32px; --pm-7: 48px; --pm-8: 64px; --pm-9: 96px; --pm-10: 128px;
--pm-gutter: clamp(20px, 4vw, 40px);
--pm-section-y: clamp(64px, 9vw, 136px);
--pm-max: 1120px; /* content column — premium sites sit 1080–1200px */
--pm-measure: 62ch; /* max line length for body copy */
/* ---- type ------------------------------------------------------------------------ */
/* System stacks only. `-apple-system` first gets SF Pro on macOS/iOS, Segoe on Win,
Roboto on Android — all three are high-quality UI faces, which is why a system
stack no longer reads as "cheap" the way it did in 2015. */
--pm-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto,
"Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
--pm-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
"Liberation Mono", monospace;
/* ---- motion ---------------------------------------------------------------------- */
/* Two easings do almost everything on these sites: a soft decel for entrances and a
slight overshoot-free "swift" curve for hover states. Durations stay short. */
--pm-ease: cubic-bezier(0.22, 0.61, 0.36, 1); /* decelerate */
--pm-ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* expo out — reveals */
--pm-ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
--pm-fast: 140ms;
--pm-med: 280ms;
--pm-slow: 680ms;
/* ---- shadows: three layers = depth; one layer = flat ------------------------------ */
--pm-shadow-sm:
0 1px 2px rgba(0, 0, 0, 0.45),
inset 0 1px 0 var(--pm-highlight);
--pm-shadow:
0 1px 2px rgba(0, 0, 0, 0.4),
0 8px 24px -8px rgba(0, 0, 0, 0.6),
inset 0 1px 0 var(--pm-highlight);
--pm-shadow-lg:
0 1px 2px rgba(0, 0, 0, 0.5),
0 12px 32px -12px rgba(0, 0, 0, 0.7),
0 48px 96px -48px rgba(0, 0, 0, 0.9),
inset 0 1px 0 var(--pm-highlight);
/* ---- effect knobs (overridable per element via inline style) ---------------------- */
--pm-grid-size: 44px;
--pm-grid-color: rgba(255, 255, 255, 0.055);
--pm-dot-size: 22px;
--pm-dot-color: rgba(255, 255, 255, 0.13);
--pm-noise-opacity: 0.035;
--pm-star-color: rgba(255, 255, 255, 0.85);
--pm-star-opacity: 0.55;
--pm-skeleton-base: rgba(255, 255, 255, 0.055);
--pm-skeleton-sheen: rgba(255, 255, 255, 0.14);
--pm-beam-from: var(--pm-accent-4);
--pm-beam-to: var(--pm-accent);
--pm-beam-size: 72px;
--pm-beam-dur: 6s;
--pm-beam-width: 1px;
--pm-marquee-dur: 40s;
--pm-marquee-gap: 24px;
}
/* Optional light theme. Same structure, inverted ramp — every utility below reads
tokens only, so a single attribute flips the whole library. */
[data-pm-theme="light"] {
--pm-bg: #ffffff; --pm-bg-1: #fafafa; --pm-bg-2: #f4f4f5; --pm-bg-3: #eeeeef;
--pm-surface: rgba(0, 0, 0, 0.02);
--pm-surface-2: rgba(0, 0, 0, 0.04);
--pm-surface-3: rgba(0, 0, 0, 0.07);
--pm-line: rgba(0, 0, 0, 0.09);
--pm-line-2: rgba(0, 0, 0, 0.14);
--pm-line-3: rgba(0, 0, 0, 0.22);
--pm-highlight: rgba(255, 255, 255, 0.9);
--pm-text: #16181d; --pm-text-2: #3c4149; --pm-text-3: #6f6e77; --pm-text-4: #8a8f98;
--pm-grid-color: rgba(0, 0, 0, 0.05);
--pm-dot-color: rgba(0, 0, 0, 0.14);
--pm-noise-opacity: 0.02;
--pm-star-color: rgba(0, 0, 0, 0.6);
--pm-star-opacity: 0.3;
--pm-skeleton-base: rgba(0, 0, 0, 0.055);
--pm-skeleton-sheen: rgba(255, 255, 255, 0.7);
}
/* =====================================================================================
02 RESET + BASE
===================================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.pm {
margin: 0;
background: var(--pm-bg);
color: var(--pm-text);
font-family: var(--pm-font);
font-size: 15px; /* Linear ships 15px body; 16px reads "template" */
line-height: 1.6;
letter-spacing: -0.011em; /* every premium site tracks body slightly tight */
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-rendering: optimizeLegibility;
font-synthesis-weight: none;
overflow-x: hidden;
}
body.pm ::selection { background: var(--pm-accent-a32); color: var(--pm-text); }
/* :where() keeps this at ZERO specificity, so a component class like .pm-btn--primary
can still set its own colour. (A plain `.pm a` here silently made every primary
button white-on-white.) */
:where(.pm a) { color: inherit; text-decoration: none; }
.pm img, .pm svg, .pm video { display: block; max-width: 100%; }
.pm h1, .pm h2, .pm h3, .pm h4, .pm p, .pm figure { margin: 0; }
:where(.pm button, .pm input, .pm textarea, .pm select) { font: inherit; color: inherit; }
/* Focus ring that matches the aesthetic instead of the OS default. */
.pm :focus-visible {
outline: 2px solid var(--pm-accent-a64);
outline-offset: 2px;
border-radius: var(--pm-r-6);
}
/* =====================================================================================
03 TYPE SCALE
-------------------------------------------------------------------------------------
The single most reliable "expensive" signal after colour: NEGATIVE TRACKING THAT
SCALES WITH SIZE. Measured off the real sites —
Vercel (Geist): 14px→-0.02em · 24px→-0.04em · 48px→-0.06em · 72px→-0.06em
Linear (Inter): body -0.011em · small -0.013em · title -0.012em · display -0.022em
Rule of thumb baked in below: -0.011em at body, ramping to -0.045em at display.
Line-height moves the opposite way: 1.6 at body → 0.98 at display.
Weight: 500–600 for headings (NOT 700 — Linear's "bold" is 680 on a variable axis;
with system fonts 600 is the closest equivalent that stays elegant).
===================================================================================== */
.pm-display {
font-size: clamp(2.75rem, 6.4vw, 5rem);
line-height: 0.98;
letter-spacing: -0.045em;
font-weight: 600;
color: var(--pm-text);
}
.pm-h1 {
font-size: clamp(2.125rem, 4.2vw, 3.25rem);
line-height: 1.06;
letter-spacing: -0.038em;
font-weight: 600;
}
.pm-h2 {
font-size: clamp(1.75rem, 3vw, 2.5rem);
line-height: 1.12;
letter-spacing: -0.032em;
font-weight: 600;
}
.pm-h3 {
font-size: 1.3125rem;
line-height: 1.3;
letter-spacing: -0.022em;
font-weight: 590;
}
.pm-h4 {
font-size: 1rem;
line-height: 1.45;
letter-spacing: -0.015em;
font-weight: 560;
}
.pm-lead {
font-size: clamp(1.0625rem, 1.35vw, 1.1875rem);
line-height: 1.6;
letter-spacing: -0.014em;
color: var(--pm-text-2);
font-weight: 400;
}
.pm-body { font-size: 0.9375rem; line-height: 1.65; letter-spacing: -0.011em; color: var(--pm-text-2); }
.pm-small { font-size: 0.8125rem; line-height: 1.5; letter-spacing: -0.013em; color: var(--pm-text-3); }
.pm-micro { font-size: 0.75rem; line-height: 1.4; letter-spacing: -0.005em; color: var(--pm-text-3); }
/* Eyebrow / kicker — the one place tracking goes POSITIVE. */
.pm-eyebrow {
font-size: 0.6875rem;
font-weight: 560;
letter-spacing: 0.09em;
text-transform: uppercase;
color: var(--pm-text-3);
}
.pm-mono { font-family: var(--pm-font-mono); font-size: 0.8125rem; letter-spacing: -0.01em; }
/* Measure: body copy never exceeds ~62 characters. Long lines are the #1 tell of an
amateur landing page. `.pm-measure-center` also centres the block. */
.pm-measure { max-width: var(--pm-measure); }
.pm-measure-center { max-width: var(--pm-measure); margin-inline: auto; }
.pm-dim { color: var(--pm-text-3); }
.pm-dimmer { color: var(--pm-text-4); }
.pm-center { text-align: center; }
.pm-balance { text-wrap: balance; } /* keeps headline ragging even */
.pm-pretty { text-wrap: pretty; } /* kills orphans in paragraphs */
.pm-tnum { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
/* =====================================================================================
04 LAYOUT
===================================================================================== */
.pm-container {
width: 100%;
max-width: var(--pm-max);
margin-inline: auto;
padding-inline: var(--pm-gutter);
}
.pm-container--wide { max-width: 1320px; }
.pm-container--tight { max-width: 760px; }
/* Section rhythm: vertical space is the cheapest luxury signal there is. Premium sites
run 96–160px between sections at desktop and never less than 64px at mobile. */
.pm-section { position: relative; padding-block: var(--pm-section-y); }
.pm-section--tight { padding-block: clamp(48px, 6vw, 80px); }
/* A hairline that fades at both ends — used as a section separator everywhere on
linear.app and vercel.com. A solid 1px rule looks cheap; a masked one looks drawn. */
.pm-rule {
height: 1px;
border: 0;
margin: 0;
background: linear-gradient(90deg, transparent, var(--pm-line-2) 18%, var(--pm-line-2) 82%, transparent);
}
.pm-rule--v { width: 1px; height: auto; align-self: stretch;
background: linear-gradient(180deg, transparent, var(--pm-line-2) 18%, var(--pm-line-2) 82%, transparent); }
/* Vertical stack with a token gap. */
.pm-stack { display: flex; flex-direction: column; gap: var(--pm-4); }
.pm-stack-2 { gap: var(--pm-2); } .pm-stack-3 { gap: var(--pm-3); }
.pm-stack-5 { gap: var(--pm-5); } .pm-stack-6 { gap: var(--pm-6); }
.pm-stack-7 { gap: var(--pm-7); }
.pm-row { display: flex; align-items: center; gap: var(--pm-3); flex-wrap: wrap; }
.pm-row--center { justify-content: center; }
.pm-row--between { justify-content: space-between; }
.pm-spacer { flex: 1 1 auto; }
.pm-grid { display: grid; gap: var(--pm-4); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.pm-grid-2 { display: grid; gap: var(--pm-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pm-grid-3 { display: grid; gap: var(--pm-4); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pm-grid-4 { display: grid; gap: var(--pm-4); grid-template-columns: repeat(4, minmax(0, 1fr)); }
/* ---- Bento grid ------------------------------------------------------------------
A 6-column bed with explicit spans. The trick that makes bento look designed rather
than random: keep ONE tall hero tile and let the rest be 2- or 3-wide, and give every
tile the same radius + hairline so the grid reads as one object. */
.pm-bento {
display: grid;
grid-template-columns: repeat(6, minmax(0, 1fr));
gap: var(--pm-3);
}
.pm-col-2 { grid-column: span 2; }
.pm-col-3 { grid-column: span 3; }
.pm-col-4 { grid-column: span 4; }
.pm-col-6 { grid-column: span 6; }
.pm-row-2 { grid-row: span 2; }
@media (max-width: 860px) {
.pm-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pm-col-2, .pm-col-3, .pm-col-4, .pm-col-6 { grid-column: span 2; }
.pm-row-2 { grid-row: span 1; }
.pm-grid-3, .pm-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
.pm-grid-2, .pm-grid-3, .pm-grid-4 { grid-template-columns: minmax(0, 1fr); }
}
.pm-relative { position: relative; }
.pm-clip { overflow: hidden; }
.pm-isolate { isolation: isolate; } /* contains blend modes (noise, glow) */
/* =====================================================================================
05 SURFACES
===================================================================================== */
/* The workhorse card. Four things make it feel expensive:
1. alpha-white fill, not an opaque grey
2. hairline border at 7.5% white
3. inset top highlight (the fake light source)
4. a real drop shadow with a long, soft third layer */
.pm-card {
position: relative;
border-radius: var(--pm-r-16);
background:
linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012)),
var(--pm-bg-1);
border: 1px solid var(--pm-line);
box-shadow: var(--pm-shadow);
padding: var(--pm-5);
transition: transform var(--pm-med) var(--pm-ease),
border-color var(--pm-med) var(--pm-ease),
box-shadow var(--pm-med) var(--pm-ease);
}
.pm-card--flush { padding: 0; overflow: hidden; }
.pm-card--lift:hover {
transform: translateY(-2px);
border-color: var(--pm-line-2);
box-shadow: var(--pm-shadow-lg);
}
/* Glassmorphism, done tastefully: heavy SATURATION with modest blur, a bright top rim,
and a fill under 8% alpha. The cheap version is 20%+ white and blur(20px) with no
saturation — that reads as frosted plastic. Linear's header is
`backdrop-filter: saturate(1.8) blur(20px)`; we mirror that. */
.pm-glass {
background: rgba(12, 13, 15, 0.55);
-webkit-backdrop-filter: saturate(180%) blur(20px);
backdrop-filter: saturate(180%) blur(20px);
border: 1px solid var(--pm-line);
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 8px 32px -12px rgba(0, 0, 0, 0.8);
border-radius: var(--pm-r-16);
}
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
.pm-glass { background: rgba(16, 17, 19, 0.94); } /* graceful fallback */
}
/* Sticky glass nav bar. */
.pm-nav {
position: sticky; top: 0; z-index: 50;
display: flex; align-items: center; gap: var(--pm-4);
padding: 10px var(--pm-gutter);
background: rgba(8, 9, 10, 0.6);
-webkit-backdrop-filter: saturate(180%) blur(18px);
backdrop-filter: saturate(180%) blur(18px);
border-bottom: 1px solid var(--pm-line);
}
/* An inset "well" for code / previews. */
.pm-well {
background: var(--pm-bg);
border: 1px solid var(--pm-line);
border-radius: var(--pm-r-12);
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
padding: var(--pm-4);
}
/* =====================================================================================
06 BACKGROUNDS
-------------------------------------------------------------------------------------
All of these are DECORATIVE PSEUDO-ELEMENTS on a positioned parent, so they never
affect layout and can't be clicked. Every one is masked — an unmasked pattern that
runs to the edge of the viewport is the classic tell of a template.
===================================================================================== */
/* ------------------------------------------------------------------------------------
IMPORTANT — the pseudo-element budget.
Every atmosphere utility below paints into ::before (and .pm-noise / .pm-vignette into
::after). An element has exactly ONE of each, so putting two ::before utilities on the
same tag (e.g. class="pm-bg-grid pm-bg-spotlight") does not stack them — the later
rule in this file simply overwrites the earlier one. That is a real trap, so:
ONE atmosphere class per element. To stack, nest layers:
`.pm-layer` (defined at the end of this section) is an absolutely-positioned, inert
box at z-index -1, so any number of them can be composited under the content.
------------------------------------------------------------------------------------ */
.pm-bg-grid, .pm-bg-dots, .pm-bg-mesh, .pm-bg-aurora, .pm-bg-halo,
.pm-bg-spotlight, .pm-bg-beams, .pm-bg-glow { position: relative; isolation: isolate; }
.pm-bg-grid::before, .pm-bg-dots::before, .pm-bg-mesh::before,
.pm-bg-aurora::before, .pm-bg-spotlight::before, .pm-bg-spotlight::after,
.pm-bg-beams::before, .pm-bg-glow::before, .pm-bg-halo::before {
content: "";
position: absolute;
pointer-events: none;
z-index: -1;
}
/* ---- Grid lines with a radial fade ------------------------------------------------
Two repeating linear-gradients (cheaper than an SVG pattern and resolution
independent), then `mask-image` with a radial gradient so the grid dissolves toward
the edges. `--pm-grid-size` / `--pm-grid-color` are overridable inline. */
.pm-bg-grid::before {
inset: 0;
background-image:
linear-gradient(to right, var(--pm-grid-color) 1px, transparent 1px),
linear-gradient(to bottom, var(--pm-grid-color) 1px, transparent 1px);
background-size: var(--pm-grid-size) var(--pm-grid-size);
-webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 0%, #000 15%, transparent 78%);
mask-image: radial-gradient(ellipse 75% 65% at 50% 0%, #000 15%, transparent 78%);
}
/* Centre-focused variant, for mid-page sections. */
.pm-bg-grid--center::before {
-webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 5%, transparent 75%);
mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 5%, transparent 75%);
}
/* ---- Dot matrix -------------------------------------------------------------------
One radial-gradient tiled by background-size. `at 1px 1px` + `transparent 0` gives a
crisp 1px dot with no antialiasing halo. */
.pm-bg-dots::before {
inset: 0;
background-image: radial-gradient(circle at 1px 1px, var(--pm-dot-color) 1px, transparent 0);
background-size: var(--pm-dot-size) var(--pm-dot-size);
-webkit-mask-image: radial-gradient(ellipse 65% 60% at 50% 45%, #000 5%, transparent 75%);
mask-image: radial-gradient(ellipse 65% 60% at 50% 45%, #000 5%, transparent 75%);
}
/* ---- Animated gradient mesh --------------------------------------------------------
Stripe renders its mesh in WebGL. The 95%-as-good, 0-dependency version: 3–4 big
radial blobs on one blurred layer, each drifting on its own slow transform loop.
Animating TRANSFORM (not background-position) keeps it on the compositor.
`filter: blur()` on the container blends the blobs into a continuous field. */
.pm-bg-mesh::before {
inset: -20%;
filter: blur(72px) saturate(140%);
opacity: 0.75;
background:
radial-gradient(38% 42% at 22% 28%, var(--pm-accent-a64), transparent 70%),
radial-gradient(34% 38% at 78% 22%, rgba(56, 189, 248, 0.42), transparent 70%),
radial-gradient(40% 44% at 62% 78%, rgba(244, 114, 182, 0.34), transparent 70%),
radial-gradient(30% 34% at 12% 80%, rgba(255, 170, 64, 0.22), transparent 70%);
animation: pm-mesh-drift 22s var(--pm-ease-in-out) infinite alternate;
will-change: transform;
}
@keyframes pm-mesh-drift {
0% { transform: translate3d(-3%, -2%, 0) scale(1); }
50% { transform: translate3d(3%, 2%, 0) scale(1.12); }
100% { transform: translate3d(-2%, 4%, 0) scale(1.04); }
}
/* ---- Aurora ribbon (Aceternity "Aurora Background") --------------------------------
A repeating-linear-gradient ribbon, heavily blurred, skewed and slid horizontally.
The `mask-image` keeps it hugging one edge so it reads as light spilling in. */
.pm-bg-aurora::before {
inset: -30% -10% auto -10%;
height: 90%;
background-image: repeating-linear-gradient(100deg,
var(--pm-accent) 0%, var(--pm-accent-2) 14%, transparent 22%,
var(--pm-accent-3) 30%, var(--pm-accent) 42%);
background-size: 200% 200%;
filter: blur(64px) saturate(150%);
opacity: 0.28;
-webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
animation: pm-aurora 26s linear infinite;
will-change: background-position;
}
@keyframes pm-aurora {
from { background-position: 0% 50%; }
to { background-position: 200% 50%; }
}
/* ---- Hero spotlight (Aceternity "Spotlight New") -----------------------------------
Two enormous ROTATED ellipses of near-invisible light (alpha .02–.08!). The reason it
looks expensive: the alphas are tiny and the shape is huge, so you read "a light is
on somewhere" rather than "there is a gradient here". Values below are the same
proportions Aceternity ships. */
.pm-bg-spotlight::before,
.pm-bg-spotlight::after {
top: 0; height: 1380px; width: 560px;
background: radial-gradient(68.5% 68.7% at 55% 31.5%,
hsla(252, 100%, 85%, 0.15) 0%,
hsla(252, 100%, 60%, 0.055) 50%,
hsla(252, 100%, 45%, 0) 80%);
opacity: 0;
animation: pm-spot-in 1.6s var(--pm-ease-out) 0.15s forwards;
}
.pm-bg-spotlight::before {
left: -10%;
transform: translateY(-350px) rotate(-45deg);
transform-origin: top left;
}
.pm-bg-spotlight::after {
right: -10%;
transform: translateY(-350px) rotate(45deg);
transform-origin: top right;
background: radial-gradient(68.5% 68.7% at 45% 31.5%,
hsla(196, 100%, 80%, 0.12) 0%,
hsla(196, 100%, 55%, 0.045) 50%,
transparent 80%);
}
@keyframes pm-spot-in { to { opacity: 1; } }
/* ---- Conic light beams -------------------------------------------------------------
A single repeating-conic-gradient fan, masked to a wedge. Reads as god-rays. */
.pm-bg-beams::before {
inset: -50% -50% auto -50%;
height: 150%;
background: repeating-conic-gradient(from 210deg at 50% 0%,
rgba(255, 255, 255, 0.055) 0deg 1.2deg, transparent 1.2deg 9deg);
-webkit-mask-image: radial-gradient(ellipse 55% 70% at 50% 0%, #000, transparent 72%);
mask-image: radial-gradient(ellipse 55% 70% at 50% 0%, #000, transparent 72%);
animation: pm-beams-sweep 30s linear infinite;
will-change: transform;
}
@keyframes pm-beams-sweep {
from { transform: rotate(-2.5deg); }
50% { transform: rotate(2.5deg); }
to { transform: rotate(-2.5deg); }
}
/* ---- Ambient glow behind a block ---------------------------------------------------
Use on a hero/product shot to make it look like it's emitting light. */
.pm-bg-glow::before {
inset: auto -20% -30% -20%;
height: 60%;
background: radial-gradient(50% 60% at 50% 50%, var(--pm-accent-a32), transparent 70%);
filter: blur(48px);
}
/* ---- Ambient halo · .pm-bg-halo ---------------------------------------------------
One big soft accent bloom sitting behind hero content. Where .pm-bg-glow anchors to the
bottom edge (for a product shot that appears to emit light), the halo sits high and
centred — it is what stops a dark hero reading as a black rectangle. Keep the alpha
low (a16 ≈ 6%): you want "there is a light source", not "there is a purple circle". */
.pm-bg-halo::before {
inset: -25% -10% auto -10%;
height: 95%;
background:
radial-gradient(52% 46% at 50% 34%, var(--pm-accent-a16), transparent 72%),
radial-gradient(38% 34% at 68% 22%, rgba(56, 189, 248, 0.09), transparent 74%);
filter: blur(26px);
}
/* ---- Composable layer · .pm-layer -------------------------------------------------
Inert, absolutely-positioned box for stacking atmosphere utilities under content.
Must come after the utilities above so its positioning wins over their
`position: relative`. Parent needs a stacking context — any pm-bg-* class provides
one, or add `.pm-isolate`. */
.pm-layer {
position: absolute;
inset: 0;
z-index: -1;
pointer-events: none;
overflow: hidden;
isolation: isolate;
}
/* ---- Film grain / noise -------------------------------------------------------------
An inline SVG feTurbulence as a data: URI — no network request, ~300 bytes, tiles
forever. `mix-blend-mode: overlay` at 3–4% is the difference between "flat vector
gradient" and "photographic". Every single site in the study uses some version. */
.pm-noise::after,
.pm-noise-fixed::after {
content: "";
position: absolute;
inset: 0;
pointer-events: none;
z-index: 1;
opacity: var(--pm-noise-opacity);
mix-blend-mode: overlay;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
background-size: 140px 140px;
}
.pm-noise { position: relative; isolation: isolate; }
.pm-noise-fixed::after { position: fixed; z-index: 9999; }
/* ---- Edge vignette ------------------------------------------------------------------
Darkens the frame so the centre column feels lit. Very cheap, very effective. */
.pm-vignette { position: relative; }
.pm-vignette::after {
content: "";
position: absolute; inset: 0; pointer-events: none;
background: radial-gradient(120% 90% at 50% 40%, transparent 45%, rgba(0, 0, 0, 0.55) 100%);
}
/* ---- Starfield / particle field · .pm-stars ---------------------------------------
CSS-only, zero DOM, zero JS. Three tiled layers of radial-gradient "stars" at
different sizes and tile pitches; each layer drifts on its own transform loop and
fades in and out on a different period, which reads as twinkling parallax depth.
Because the tiles are prime-ish sizes (137/191/281px) the layers never visibly
resync. Everything animates on transform + opacity only.
Tune with --pm-star-color / --pm-star-opacity. */
.pm-stars { position: relative; isolation: isolate; }
.pm-stars::before,
.pm-stars::after {
content: "";
position: absolute; inset: -20%;
pointer-events: none;
z-index: -1;
background-repeat: repeat;
will-change: transform, opacity;
}
/* far layer — many small, dim stars, slow drift */
.pm-stars::before {
background-image:
radial-gradient(1px 1px at 24px 32px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 88px 12px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 130px 96px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 56px 140px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 168px 60px, var(--pm-star-color) 50%, transparent 100%);
background-size: 191px 191px;
opacity: calc(var(--pm-star-opacity) * 0.72);
animation: pm-stars-drift 120s linear infinite, pm-twinkle 7s ease-in-out infinite;
}
/* near layer — fewer, brighter, faster, with a soft bloom on each */
.pm-stars::after {
background-image:
radial-gradient(1.6px 1.6px at 40px 60px, var(--pm-star-color) 45%, transparent 100%),
radial-gradient(1.4px 1.4px at 150px 24px, var(--pm-accent-a64) 45%, transparent 100%),
radial-gradient(1.6px 1.6px at 96px 176px, var(--pm-star-color) 45%, transparent 100%),
radial-gradient(1.4px 1.4px at 210px 120px,var(--pm-star-color) 45%, transparent 100%);
background-size: 281px 281px;
opacity: var(--pm-star-opacity);
animation: pm-stars-drift 70s linear infinite reverse, pm-twinkle 4.5s ease-in-out infinite 1.3s;
}
/* Optional third layer element for a denser field: */
.pm-stars__dust {
position: absolute; inset: -20%;
pointer-events: none; z-index: -1;
background-image:
radial-gradient(1px 1px at 12px 78px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 104px 40px, var(--pm-star-color) 50%, transparent 100%),
radial-gradient(1px 1px at 72px 118px, var(--pm-star-color) 50%, transparent 100%);
background-size: 137px 137px;
opacity: calc(var(--pm-star-opacity) * 0.5);
animation: pm-stars-drift 180s linear infinite, pm-twinkle 9s ease-in-out infinite 2.1s;
}
@keyframes pm-stars-drift {
from { transform: translate3d(0, 0, 0); }
to { transform: translate3d(-191px, -120px, 0); }
}
@keyframes pm-twinkle {
0%, 100% { opacity: var(--pm-star-opacity); }
50% { opacity: calc(var(--pm-star-opacity) * 0.45); }
}
/* ---- Fade the bottom of a section into the page background ------------------------- */
.pm-fade-b { -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent 100%);
mask-image: linear-gradient(to bottom, #000 55%, transparent 100%); }
.pm-fade-t { -webkit-mask-image: linear-gradient(to top, #000 55%, transparent 100%);
mask-image: linear-gradient(to top, #000 55%, transparent 100%); }
.pm-fade-x { -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
/* =====================================================================================
07 ANIMATED BORDERS
-------------------------------------------------------------------------------------
The mechanism behind ALL of them is the same two-layer mask "ring" trick:
padding: 1px; <- ring thickness
mask: linear-gradient(#000 0 0) content-box, <- layer A: the inside
linear-gradient(#000 0 0); <- layer B: everything
mask-composite: exclude; <- B minus A == the 1px ring
Whatever you paint as the element's background then only shows inside that ring.
Paint a rotating conic gradient -> spinning border. Paint a travelling square ->
border beam. Paint an oversized radial and pan it -> shine border.
===================================================================================== */
/* @property lets us ANIMATE a custom property of type . Without it, custom
properties are strings and interpolate as discrete steps (i.e. no animation), which
is why rotating conic borders used to require an extra wrapper + rotate transform.
Supported: Chrome 85+, Safari 16.4+, Firefox 128+. Degrades to a static gradient. */
@property --pm-angle {
syntax: "";
initial-value: 0deg;
inherits: false;
}
/* Shared ring geometry. Applied to a decorative child so the host keeps its own bg. */
.pm-border-beam,
.pm-border-conic,
.pm-border-shine {
position: absolute;
inset: 0;
border-radius: inherit;
pointer-events: none;
padding: var(--pm-beam-width);
-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
-webkit-mask-composite: xor; /* WebKit's spelling of "exclude" */
mask-composite: exclude;
overflow: hidden;
}
/* ---- 7a. Border beam ---------------------------------------------------------------
A square gradient sprite driven around the rounded rectangle by `offset-path: rect()`.
Because it follows the geometry, it moves at CONSTANT LINEAR SPEED — the detail that
separates this from a rotating conic (which races along long edges and crawls at the
corners). This is exactly how magicui's works, minus React/Motion. */
.pm-border-beam::after {
content: "";
position: absolute;
top: 0; left: 0;
aspect-ratio: 1;
width: var(--pm-beam-size);
background: linear-gradient(to left, var(--pm-beam-from), var(--pm-beam-to), transparent);
/* fallback for engines without offset-path: rect() — orbit via rotation instead */
animation: pm-spin-fallback var(--pm-beam-dur) linear infinite;
transform-origin: 50% 50%;
}
@supports (offset-path: rect(0px auto auto 0px round 8px)) {
.pm-border-beam::after {
offset-path: rect(0 auto auto 0 round var(--pm-beam-size));
offset-distance: 0%;
animation: pm-beam-travel var(--pm-beam-dur) linear infinite;
}
}
@keyframes pm-beam-travel { to { offset-distance: 100%; } }
@keyframes pm-spin-fallback { to { transform: rotate(360deg); } }
.pm-border-beam--reverse::after { animation-direction: reverse; }
.pm-border-beam--slow::after { --pm-beam-dur: 11s; }
/* ---- 7b. Rotating conic border ------------------------------------------------------
One arc of colour spun around the ring. Cheapest animated border there is: a single
compositor-friendly custom-property tween, no extra DOM. */
.pm-border-conic {
background: conic-gradient(from var(--pm-angle),
transparent 0%,
var(--pm-beam-from) 8%,
var(--pm-beam-to) 16%,
transparent 28%,
transparent 100%);
animation: pm-angle-spin var(--pm-beam-dur) linear infinite;
}
@keyframes pm-angle-spin { to { --pm-angle: 360deg; } }
/* Full-rainbow variant — the "AI gradient" border seen on 21st.dev / cult-ui cards. */
.pm-border-conic--full {
background: conic-gradient(from var(--pm-angle),
var(--pm-accent), var(--pm-accent-2), var(--pm-accent-3),
var(--pm-accent-4), var(--pm-accent));
opacity: 0.9;
}
/* ---- 7c. Shine border (magicui ) ---------------------------------------
A 300%-sized radial gradient panned diagonally across the ring. Softer and slower
than a beam — good for cards you don't want shouting. */
.pm-border-shine {
background-image: radial-gradient(transparent, transparent,
var(--pm-beam-from), var(--pm-beam-to), transparent, transparent);
background-size: 300% 300%;
animation: pm-shine-pan 14s linear infinite;
will-change: background-position;
}
@keyframes pm-shine-pan {
0% { background-position: 0% 0%; }
50% { background-position: 100% 100%; }
100% { background-position: 0% 0%; }
}
/* ---- 7d. Static gradient hairline ---------------------------------------------------
No animation at all: a border-image-ish gradient ring. Use it as the default card
border on a storefront and save the animated ones for one or two hero moments. */
.pm-border-grad {
position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
padding: 1px;
background: linear-gradient(160deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.02) 45%, transparent 70%);
-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
-webkit-mask-composite: xor; mask-composite: exclude;
}
/* =====================================================================================
08 GLOW, BLOOM, DEPTH
===================================================================================== */
/* Coloured bloom under an element. Two shadows: a tight one for the "lamp" and a wide
soft one for the spill. */
.pm-glow { box-shadow: 0 0 0 1px var(--pm-accent-a16),
0 8px 32px -8px var(--pm-accent-a32); }
.pm-glow-lg { box-shadow: 0 0 0 1px var(--pm-accent-a16),
0 12px 40px -8px var(--pm-accent-a32),
0 40px 120px -32px var(--pm-accent-a64); }
.pm-glow-soft { box-shadow: 0 24px 80px -32px var(--pm-accent-a64); }
/* Aceternity "Lamp": a hard-edged glow bar that bleeds upward from a line. */
.pm-lamp { position: relative; }
.pm-lamp::before {
content: "";
position: absolute; left: 50%; top: 0;
width: min(680px, 80%); height: 2px;
transform: translateX(-50%);
background: linear-gradient(90deg, transparent, var(--pm-accent) 30%, var(--pm-accent-2) 70%, transparent);
box-shadow: 0 0 24px 2px var(--pm-accent-a64), 0 0 90px 24px var(--pm-accent-a32);
opacity: 0.9;
}
/* The single most useful depth primitive: a bright hairline across the top edge that
fades out at both ends. Put it on cards, navs, footers, modals. */
.pm-topline { position: relative; }
.pm-topline::before {
content: "";
position: absolute; inset: 0 12% auto 12%; height: 1px;
background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
}
/* =====================================================================================
09 TEXT EFFECTS
===================================================================================== */
/* Gradient text. `-webkit-background-clip: text` + transparent fill. `padding-bottom`
+ `margin-bottom` compensation stops descenders (g, y, p) being clipped. */
.pm-text-grad {
background-image: linear-gradient(180deg, #ffffff 25%, rgba(255, 255, 255, 0.55) 100%);
-webkit-background-clip: text;
background-clip: text;
color: transparent;
-webkit-text-fill-color: transparent;
padding-bottom: 0.12em;
margin-bottom: -0.12em;
}
.pm-text-grad--accent {
background-image: linear-gradient(100deg, var(--pm-accent-2), var(--pm-accent) 45%, var(--pm-accent-3));
}
/* Animated gradient text (magicui ): 300% background panned
forever. The gradient must return to its start colour or the loop will jump. */
.pm-text-grad-anim {
background-image: linear-gradient(90deg,
var(--pm-accent-4), var(--pm-accent), var(--pm-accent-2), var(--pm-accent-4));
background-size: 300% 100%;
-webkit-background-clip: text; background-clip: text;
color: transparent; -webkit-text-fill-color: transparent;
animation: pm-grad-pan 8s linear infinite;
padding-bottom: 0.12em; margin-bottom: -0.12em;
}
@keyframes pm-grad-pan { to { background-position: 300% 0; } }
/* Aurora text: same clip, but the layer also rotates/scales, so the colour boundaries
move non-linearly. Reads much richer than a straight pan. */
.pm-text-aurora {
display: inline-block;
background-image: linear-gradient(135deg,
var(--pm-accent-3), var(--pm-accent), var(--pm-accent-2), var(--pm-accent-3));
background-size: 200% auto;
-webkit-background-clip: text; background-clip: text;
color: transparent; -webkit-text-fill-color: transparent;
animation: pm-aurora-text 9s var(--pm-ease-in-out) infinite alternate;
padding-bottom: 0.12em; margin-bottom: -0.12em;
}
@keyframes pm-aurora-text {
0% { background-position: 0% 50%; }
50% { background-position: 100% 50%; }
100% { background-position: 0% 50%; }
}
/* Shimmer sweep over dim text (magicui ). The text colour must be
SEMI-TRANSPARENT so the clipped white gradient can show through it. */
.pm-text-shimmer {
--pm-shimmer-w: 120px;
color: rgba(255, 255, 255, 0.42);
background-image: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.95) 50%, transparent);
background-repeat: no-repeat;
background-size: var(--pm-shimmer-w) 100%;
-webkit-background-clip: text; background-clip: text;
animation: pm-text-shimmer 6.5s var(--pm-ease-in-out) infinite;
}
@keyframes pm-text-shimmer {
0%, 88%, 100% { background-position: calc(-1 * var(--pm-shimmer-w)) 0; }
38%, 62% { background-position: calc(100% + var(--pm-shimmer-w)) 0; }
}
/* Highlight behind a phrase, drawn like a marker stroke. */
.pm-mark {
position: relative;
background: linear-gradient(180deg, transparent 62%, var(--pm-accent-a32) 62%);
padding-inline: 0.08em;
}
/* Typewriter caret (the JS drives the text; the caret is pure CSS). */
.pm-caret::after {
content: "";
display: inline-block;
width: 0.06em; height: 1em;
margin-left: 0.08em;
vertical-align: -0.12em;
background: currentColor;
animation: pm-blink 1.05s steps(1) infinite;
}
@keyframes pm-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
/* Per-character / per-word reveal.
JS wraps each piece in and adds .pm-in when the line scrolls
into view — the animation is gated on .pm-in so a headline below the fold still
plays on arrival instead of having finished before anyone saw it. */
.pm-chars > span {
display: inline-block;
opacity: 0;
transform: translateY(0.45em);
filter: blur(4px);
will-change: transform, opacity;
}
.pm-chars.pm-in > span {
animation: pm-char-in 0.62s var(--pm-ease-out) forwards;
animation-delay: calc(var(--pm-i) * 22ms);
}
/* Word mode: bigger travel, softer blur, slower cadence. This is the one to use on
real copy — per-character on a full sentence is the classic overdone version. */
.pm-chars--words > span { transform: translateY(0.5em); filter: blur(7px); }
.pm-chars--words.pm-in > span {
animation-duration: 0.78s;
animation-delay: calc(var(--pm-i) * 55ms);
}
@keyframes pm-char-in { to { opacity: 1; transform: none; filter: blur(0); } }
/* Scramble / decode target. Tabular mono keeps the line from reflowing while the
glyphs churn — without this the text visibly jitters as widths change. */
.pm-scramble {
font-variant-numeric: tabular-nums;
font-family: var(--pm-font-mono);
letter-spacing: -0.01em;
}
.pm-scramble--sans { font-family: inherit; }
/* =====================================================================================
10 BUTTONS, BADGES, INPUTS
===================================================================================== */
.pm-btn {
--pm-btn-bg: var(--pm-surface-2);
position: relative;
display: inline-flex; align-items: center; justify-content: center; gap: 8px;
height: 38px;
padding: 0 16px;
border-radius: var(--pm-r-8);
border: 1px solid var(--pm-line-2);
background: var(--pm-btn-bg);
color: var(--pm-text);
font-size: 0.875rem; font-weight: 520; letter-spacing: -0.012em;
white-space: nowrap;
cursor: pointer;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
transition: background var(--pm-fast) var(--pm-ease),
border-color var(--pm-fast) var(--pm-ease),
transform var(--pm-fast) var(--pm-ease),
box-shadow var(--pm-fast) var(--pm-ease);
}
.pm-btn:hover { background: var(--pm-surface-3); border-color: var(--pm-line-3); }
.pm-btn:active { transform: translateY(0.5px) scale(0.995); }
/* Primary = white on near-black. Vercel, Linear, Resend and Clerk all ship this;
it out-performs any coloured CTA on a dark page because it's the brightest object. */
.pm-btn--primary {
background: #fff; color: #08090a; border-color: transparent;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), inset 0 -1px 0 rgba(0, 0, 0, 0.12);
}
.pm-btn--primary:hover { background: #e9e9ec; }
.pm-btn--accent {
background: linear-gradient(180deg, var(--pm-accent), #6355e6);
border-color: transparent; color: #fff;
box-shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -10px var(--pm-accent-a64),
inset 0 1px 0 rgba(255,255,255,.22);
}
.pm-btn--ghost { background: transparent; border-color: transparent; color: var(--pm-text-2); }
.pm-btn--ghost:hover { background: var(--pm-surface-2); color: var(--pm-text); }
.pm-btn--lg { height: 44px; padding: 0 22px; font-size: 0.9375rem; border-radius: var(--pm-r-12); }
.pm-btn--pill { border-radius: var(--pm-r-pill); }
/* Shimmer button (21st.dev's signature): a rotating conic ring INSIDE a pill, plus a
sweeping specular highlight on hover. */
.pm-btn--shimmer {
overflow: hidden;
isolation: isolate;
background: transparent;
border-color: transparent;
color: var(--pm-text);
}
.pm-btn--shimmer::before {
content: "";
position: absolute; inset: -150%;
z-index: -1;
background: conic-gradient(from var(--pm-angle), transparent 0 78%, rgba(255,255,255,.9) 92%, transparent 100%);
animation: pm-angle-spin 3.2s linear infinite;
}
.pm-btn--shimmer::after {
content: "";
position: absolute; inset: 1px;
z-index: -1;
border-radius: inherit;
background: #0d0e10;
}
/* Specular sweep on hover — the "glint" used on Linear/Framer CTAs. */
.pm-sheen { position: relative; overflow: hidden; }
.pm-sheen::after {
content: "";
position: absolute; inset: 0;
transform: translateX(-120%) skewX(-18deg);
background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
transition: transform 0.75s var(--pm-ease-out);
pointer-events: none;
}
.pm-sheen:hover::after { transform: translateX(120%) skewX(-18deg); }
/* Badge / announcement pill — nearly every 2026 hero opens with one. */
.pm-badge {
display: inline-flex; align-items: center; gap: 8px;
height: 28px; padding: 0 12px 0 8px;
border-radius: var(--pm-r-pill);
border: 1px solid var(--pm-line-2);
background: var(--pm-surface-2);
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
font-size: 0.75rem; font-weight: 500; letter-spacing: -0.008em;
color: var(--pm-text-2);
}
.pm-badge__dot {
width: 6px; height: 6px; border-radius: 50%;
background: var(--pm-accent-2);
box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
animation: pm-pulse-dot 2.4s var(--pm-ease-in-out) infinite;
}
@keyframes pm-pulse-dot {
0%, 100% { box-shadow: 0 0 0 2px rgba(56,189,248,.22); }
50% { box-shadow: 0 0 0 6px rgba(56,189,248,0); }
}
.pm-kbd {
font-family: var(--pm-font-mono); font-size: 11px;
padding: 2px 6px; border-radius: var(--pm-r-6);
border: 1px solid var(--pm-line-2); background: var(--pm-surface-2);
color: var(--pm-text-3);
}
.pm-input {
height: 38px; width: 100%;
padding: 0 12px;
border-radius: var(--pm-r-8);
border: 1px solid var(--pm-line-2);
background: var(--pm-bg);
color: var(--pm-text);
font: inherit; font-size: 0.875rem;
box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
transition: border-color var(--pm-fast) var(--pm-ease), box-shadow var(--pm-fast) var(--pm-ease);
}
.pm-input::placeholder { color: var(--pm-text-4); }
.pm-input:focus {
outline: none;
border-color: var(--pm-accent-a64);
box-shadow: inset 0 1px 2px rgba(0,0,0,.5), 0 0 0 3px var(--pm-accent-a16);
}
/* =====================================================================================
11 MOTION
===================================================================================== */
/* ---- Scroll reveal -----------------------------------------------------------------
premium.js adds `pm-js` to at parse time, so the hidden state only applies
when JS is actually running. No JS => content is simply visible. That's the whole
graceful-degradation story.
Movement is deliberately SMALL (14px) and the blur is what sells it. Big 60px slides
read as "AOS.js 2019"; 12–16px + a 6px blur + 600ms expo-out reads as 2026. */
[data-pm-reveal] { --pm-reveal-delay: 0ms; }
.pm-js [data-pm-reveal] {
opacity: 0;
transform: translate3d(0, 14px, 0);
filter: blur(6px);
transition:
opacity var(--pm-slow) var(--pm-ease-out) var(--pm-reveal-delay),
transform var(--pm-slow) var(--pm-ease-out) var(--pm-reveal-delay),
filter var(--pm-slow) var(--pm-ease-out) var(--pm-reveal-delay);
will-change: opacity, transform;
}
.pm-js [data-pm-reveal="left"] { transform: translate3d(-22px, 0, 0); }
.pm-js [data-pm-reveal="right"] { transform: translate3d(22px, 0, 0); }
.pm-js [data-pm-reveal="scale"] { transform: scale(0.965); }
.pm-js [data-pm-reveal="fade"] { transform: none; }
.pm-js [data-pm-reveal].pm-in {
opacity: 1;
transform: none;
filter: blur(0);
}
/* Stagger: premium.js writes --pm-i on each child; multiply by a step. */
[data-pm-stagger] > * { --pm-reveal-delay: calc(var(--pm-i, 0) * var(--pm-stagger-step, 60ms)); }
/* ---- Marquee -----------------------------------------------------------------------
Two identical tracks translating by -100% - gap. The edge mask is mandatory: without
it you see items pop in at the boundary, which instantly looks broken. */
.pm-marquee {
display: flex;
overflow: hidden;
gap: var(--pm-marquee-gap);
-webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.pm-marquee__track {
display: flex;
flex-shrink: 0;
align-items: center;
gap: var(--pm-marquee-gap);
min-width: 100%;
animation: pm-marquee var(--pm-marquee-dur) linear infinite;
will-change: transform;
}
@keyframes pm-marquee {
from { transform: translate3d(0, 0, 0); }
to { transform: translate3d(calc(-100% - var(--pm-marquee-gap)), 0, 0); }
}
.pm-marquee--reverse .pm-marquee__track { animation-direction: reverse; }
.pm-marquee--pause:hover .pm-marquee__track { animation-play-state: paused; }
.pm-marquee--slow { --pm-marquee-dur: 70s; }
/* Vertical variant. */
.pm-marquee--v { flex-direction: column; height: 100%;
-webkit-mask-image: linear-gradient(180deg, transparent, #000 10%, #000 90%, transparent);
mask-image: linear-gradient(180deg, transparent, #000 10%, #000 90%, transparent); }
.pm-marquee--v .pm-marquee__track { flex-direction: column; min-width: 0; min-height: 100%;
animation-name: pm-marquee-v; }
@keyframes pm-marquee-v {
from { transform: translate3d(0, 0, 0); }
to { transform: translate3d(0, calc(-100% - var(--pm-marquee-gap)), 0); }
}
/* ---- Cursor spotlight ---------------------------------------------------------------
premium.js writes --pm-mx / --pm-my (in px, element-relative). CSS does the drawing,
so the JS work per pointermove is two setProperty calls inside a rAF — no layout. */
.pm-spotlight { position: relative; isolation: isolate; overflow: hidden; }
.pm-spotlight::before {
content: "";
position: absolute; inset: -1px;
border-radius: inherit;
pointer-events: none;
opacity: 0;
transition: opacity var(--pm-med) var(--pm-ease);
background: radial-gradient(
var(--pm-spot-size, 340px) circle at var(--pm-mx, 50%) var(--pm-my, 50%),
var(--pm-spot-color, rgba(255, 255, 255, 0.09)), transparent 70%);
}
.pm-spotlight:hover::before,
.pm-spotlight.pm-spot-on::before { opacity: 1; }
/* Spotlight that lights up the BORDER only (Aceternity "Glowing Effect" / Linear's
card hover). Same radial, masked to the 1px ring. Much classier than a fill wash. */
.pm-spotlight-ring { position: relative; }
.pm-spotlight-ring::after {
content: "";
position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
padding: 1px;
background: radial-gradient(var(--pm-spot-size, 260px) circle at var(--pm-mx, 50%) var(--pm-my, 50%),
var(--pm-accent-a64), transparent 65%);
-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
-webkit-mask-composite: xor; mask-composite: exclude;
opacity: 0;
transition: opacity var(--pm-med) var(--pm-ease);
}
.pm-spotlight-ring:hover::after,
.pm-spotlight-ring.pm-spot-on::after { opacity: 1; }
/* A page-level pointer glow (drop it on or a hero). Uses fixed positioning and
viewport coordinates written by premium.js as --pm-px/--pm-py. */
.pm-cursor-glow::before {
content: "";
position: fixed;
inset: 0;
z-index: 0;
pointer-events: none;
background: radial-gradient(520px circle at var(--pm-px, 50vw) var(--pm-py, 30vh),
var(--pm-accent-a08), transparent 65%);
transition: opacity var(--pm-slow) var(--pm-ease);
}
/* ---- 3D tilt ------------------------------------------------------------------------
Perspective on the wrapper, preserve-3d on the inner. JS writes --pm-rx/--pm-ry.
Keep max rotation <= 8deg; anything more looks like a toy. The glare layer is what
makes it read as glass rather than cardboard. */
.pm-tilt { perspective: 900px; }
.pm-tilt__inner {
position: relative;
transform-style: preserve-3d;
transform: rotateX(var(--pm-rx, 0deg)) rotateY(var(--pm-ry, 0deg)) translate3d(0, 0, 0);
transition: transform 320ms var(--pm-ease);
will-change: transform;
}
.pm-tilt.pm-tilt-active .pm-tilt__inner { transition: transform 80ms linear; }
.pm-tilt__layer { transform: translateZ(var(--pm-z, 40px)); }
.pm-tilt__glare {
position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
background: radial-gradient(260px circle at var(--pm-mx, 50%) var(--pm-my, 50%),
rgba(255, 255, 255, 0.16), transparent 60%);
opacity: 0; transition: opacity var(--pm-med) var(--pm-ease);
}
.pm-tilt:hover .pm-tilt__glare { opacity: 1; }
/* ---- Magnetic hover (JS writes --pm-tx/--pm-ty) --------------------------------------- */
.pm-magnetic {
transform: translate3d(var(--pm-tx, 0px), var(--pm-ty, 0px), 0);
transition: transform 260ms var(--pm-ease);
}
.pm-magnetic.pm-mag-active { transition: transform 90ms linear; }
/* ---- Hover lift for any element -------------------------------------------------------- */
.pm-lift { transition: transform var(--pm-med) var(--pm-ease), box-shadow var(--pm-med) var(--pm-ease); }
.pm-lift:hover { transform: translateY(-3px); box-shadow: var(--pm-shadow-lg); }
/* =====================================================================================
12 SCROLL-LINKED
===================================================================================== */
/* Reading-progress bar. Uses the native scroll-driven animation where available
(Chrome 115+, no JS, runs off the main thread); premium.js fills in elsewhere. */
.pm-progress {
position: fixed; top: 0; left: 0; right: 0;
height: 2px; z-index: 100;
transform-origin: 0 50%;
transform: scaleX(var(--pm-progress, 0));
background: linear-gradient(90deg, var(--pm-accent), var(--pm-accent-2), var(--pm-accent-3));
}
@supports (animation-timeline: scroll()) {
.pm-progress {
animation: pm-progress-grow linear;
animation-timeline: scroll(root block);
}
@keyframes pm-progress-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}
/* Native scroll reveal — zero JS, zero observers. Used as an enhancement layer on top
of the IntersectionObserver version for browsers that support view() timelines. */
@supports (animation-timeline: view()) {
.pm-view-reveal {
animation: pm-view-in linear both;
animation-timeline: view();
animation-range: entry 5% cover 32%;
}
@keyframes pm-view-in {
from { opacity: 0; transform: translateY(24px) scale(0.985); filter: blur(6px); }
to { opacity: 1; transform: none; filter: blur(0); }
}
}
/* Sticky scroll section: a tall wrapper, a viewport-height sticky panel. The panel's
content is swapped by premium.js as each step scrolls past mid-viewport. */
.pm-sticky-wrap { position: relative; }
.pm-sticky {
position: sticky;
top: var(--pm-sticky-top, 96px);
}
.pm-step { opacity: 0.32; transition: opacity var(--pm-med) var(--pm-ease), color var(--pm-med) var(--pm-ease); }
.pm-step.pm-step-active { opacity: 1; }
/* Parallax: JS writes --pm-par (px). Transform only — no top/margin, no layout. */
.pm-parallax { transform: translate3d(0, var(--pm-par, 0px), 0); will-change: transform; }
/* =====================================================================================
13 MICRO-COMPONENTS
===================================================================================== */
/* Stat block with a number ticker. tabular-nums stops the width jittering as digits
change — without it the layout visibly twitches while counting. */
.pm-stat__value {
font-size: clamp(2rem, 3.4vw, 2.75rem);
font-weight: 600;
letter-spacing: -0.04em;
line-height: 1.05;
font-variant-numeric: tabular-nums;
color: var(--pm-text);
}
.pm-stat__label { font-size: 0.8125rem; color: var(--pm-text-3); letter-spacing: -0.01em; }
/* ---- Animated beams connecting nodes (magicui ) -------------------------
The React version measures DOM nodes and draws an SVG path. The CSS-only version:
author the path in the markup, then run a short dash along it. `stroke-dasharray`
with a tiny dash and a huge gap + animated `stroke-dashoffset` = a light pulse. */
.pm-beam-svg { width: 100%; height: auto; overflow: visible; }
.pm-beam-track { stroke: var(--pm-line-2); stroke-width: 1.25; fill: none; }
.pm-beam-pulse {
stroke: var(--pm-accent-2);
stroke-width: 1.75;
fill: none;
stroke-linecap: round;
stroke-dasharray: 26 460;
filter: drop-shadow(0 0 5px var(--pm-accent-2));
animation: pm-beam-dash var(--pm-beam-dash-dur, 3.2s) linear infinite;
animation-delay: var(--pm-beam-delay, 0s);
}
@keyframes pm-beam-dash { from { stroke-dashoffset: 486; } to { stroke-dashoffset: 0; } }
.pm-node {
display: grid; place-items: center;
width: 46px; height: 46px;
border-radius: 14px;
background: var(--pm-bg-2);
border: 1px solid var(--pm-line-2);
box-shadow: var(--pm-shadow-sm), 0 0 24px -6px var(--pm-accent-a32);
font-size: 12px; font-weight: 600; color: var(--pm-text-2);
}
/* ---- Ripple (concentric expanding rings) ----------------------------------------------- */
.pm-ripple { position: relative; display: grid; place-items: center; }
.pm-ripple__ring {
position: absolute;
border-radius: 50%;
border: 1px solid var(--pm-line-2);
animation: pm-ripple 4.5s var(--pm-ease-in-out) infinite;
animation-delay: calc(var(--pm-i, 0) * 320ms);
}
@keyframes pm-ripple {
0% { transform: scale(0.65); opacity: 0; }
25% { opacity: 0.75; }
100% { transform: scale(1.55); opacity: 0; }
}
/* ---- Orbiting dots ------------------------------------------------------------------- */
.pm-orbit { position: relative; display: grid; place-items: center; }
.pm-orbit__path {
position: absolute;
border: 1px dashed rgba(255, 255, 255, 0.09);
border-radius: 50%;
animation: pm-orbit-spin var(--pm-orbit-dur, 18s) linear infinite;
animation-delay: calc(var(--pm-i, 0) * -3s);
}
.pm-orbit__path--rev { animation-direction: reverse; }
.pm-orbit__dot {
position: absolute; top: -5px; left: 50%;
width: 10px; height: 10px; margin-left: -5px;
border-radius: 50%;
background: var(--pm-accent-2);
box-shadow: 0 0 12px 1px var(--pm-accent-2);
}
@keyframes pm-orbit-spin { to { transform: rotate(360deg); } }
/* ---- Meteors (magicui) -----------------------------------------------------------------
A rotated 2px head with a linear-gradient tail, translated along its own X axis.
The rotation is applied first so translateX moves it diagonally. */
.pm-meteors { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.pm-meteor {
position: absolute;
top: -10%;
width: 2px; height: 2px;
border-radius: 50%;
background: rgba(255, 255, 255, 0.6);
box-shadow: 0 0 6px 1px rgba(255, 255, 255, 0.18);
transform: rotate(var(--pm-angle-deg, 215deg));
animation: pm-meteor var(--pm-meteor-dur, 6s) linear infinite;
animation-delay: var(--pm-meteor-delay, 0s);
}
.pm-meteor::before {
content: "";
position: absolute; top: 50%; left: 0;
width: 130px; height: 1px;
transform: translateY(-50%);
background: linear-gradient(90deg, rgba(255, 255, 255, 0.34), transparent 85%);
}
@keyframes pm-meteor {
0% { transform: rotate(var(--pm-angle-deg, 215deg)) translateX(0); opacity: 0; }
8% { opacity: 1; }
70% { opacity: 1; }
100% { transform: rotate(var(--pm-angle-deg, 215deg)) translateX(-780px); opacity: 0; }
}
/* ---- Scroll-cue chevron ----------------------------------------------------------------- */
.pm-scroll-cue { animation: pm-float 2.6s var(--pm-ease-in-out) infinite; }
@keyframes pm-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
/* ---- Logo wall item --------------------------------------------------------------------- */
.pm-logo {
display: inline-flex; align-items: center; gap: 8px;
color: var(--pm-text-3);
font-weight: 560; letter-spacing: -0.02em; font-size: 1.0625rem;
opacity: 0.72;
transition: opacity var(--pm-med) var(--pm-ease), color var(--pm-med) var(--pm-ease);
white-space: nowrap;
}
.pm-logo:hover { opacity: 1; color: var(--pm-text); }
/* ---- Docs label used by showcase.html ---------------------------------------------------- */
.pm-label {
display: inline-block;
font-family: var(--pm-font-mono);
font-size: 11px;
letter-spacing: 0;
padding: 3px 8px;
border-radius: var(--pm-r-6);
background: var(--pm-surface-2);
border: 1px solid var(--pm-line);
color: var(--pm-text-3);
}
/* ---- Skeleton shimmer · .pm-skeleton -----------------------------------------------
The loading placeholder every dashboard ships. Two things separate a good one from a
cheap one: (1) the sheen is a MOVING BACKGROUND-POSITION on a 200%-wide gradient, not
a translating child, so there is nothing to clip and nothing to composite badly, and
(2) the sheen is a narrow band with soft shoulders, so it reads as a light source
passing over a surface rather than a grey bar sliding sideways.
Variants: --line (text row) · --title · --circle (avatar) · --block (media). */
.pm-skeleton {
position: relative;
border-radius: var(--pm-r-8);
background-color: var(--pm-skeleton-base);
background-image: linear-gradient(
100deg,
transparent 20%,
var(--pm-skeleton-sheen) 42%,
var(--pm-skeleton-sheen) 48%,
transparent 70%);
background-size: 220% 100%;
background-repeat: no-repeat;
animation: pm-skeleton-sweep 1.6s var(--pm-ease-in-out) infinite;
overflow: hidden;
}
.pm-skeleton--line { height: 12px; border-radius: var(--pm-r-pill); }
.pm-skeleton--title { height: 20px; border-radius: var(--pm-r-6); width: 62%; }
.pm-skeleton--circle { width: 40px; height: 40px; border-radius: 50%; flex: 0 0 auto; }
.pm-skeleton--block { height: 120px; border-radius: var(--pm-r-12); }
/* Progressive width ladder so a stack of lines looks like real copy, not a barcode. */
.pm-skeleton--line:nth-child(3n) { width: 92%; }
.pm-skeleton--line:nth-child(3n+1) { width: 100%; }
.pm-skeleton--line:nth-child(3n+2) { width: 74%; }
@keyframes pm-skeleton-sweep {
from { background-position: 160% 0; }
to { background-position: -60% 0; }
}
/* ---- Tap ripple · [data-pm-tap] ----------------------------------------------------
Material's ink ripple, minus Material. JS injects one at the pointer and
removes it on animationend; CSS scales it from 0 and fades it out. Sized to the
element's diagonal so the ink always covers the far corner. */
.pm-tap { position: relative; overflow: hidden; }
.pm-tap__ink {
position: absolute;
border-radius: 50%;
background: radial-gradient(circle, rgba(255,255,255,0.42) 0%, rgba(255,255,255,0.12) 55%, transparent 72%);
transform: scale(0);
opacity: 0.9;
pointer-events: none;
animation: pm-tap-ink 620ms var(--pm-ease-out) forwards;
}
@keyframes pm-tap-ink {
to { transform: scale(1); opacity: 0; }
}
/* ---- Animated checkmark draw · .pm-check / [data-pm-check] -------------------------
An inline