/* Shared base for the Endlyss sites. Each site sets its own colour tokens in its page:
   --ground --surface --surface-2 --line --ink --muted --accent --on --accent-text --glow --fx1 --fx2 --fx3
   Sizes are in rem. The root size grows gently with the window (about 17px on a laptop, 20px at 2560 wide)
   and is mostly fixed pixels, so browser zoom (Ctrl + / Ctrl -) still makes everything bigger or smaller. */
:root {
  --head: "Rethink Sans", ui-sans-serif, system-ui, sans-serif;
  --body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --ease: cubic-bezier(.22, .8, .2, 1);
  --r: 1.375rem;
  --max: 78rem;
  --gutter: clamp(1rem, 4vw, 3rem);
  color-scheme: dark;
  font-size: clamp(15px, calc(13px + .28vw), 24px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 400 1rem/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4, .head, .btn, .eyebrow, .wordmark { font-family: var(--head); font-weight: 700; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
::selection { background: var(--accent); color: var(--on); }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; border-radius: .4rem; }

/* background canvas, fixed behind everything */
#fx { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.page { position: relative; z-index: 1; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }

/* scroll progress line under the nav */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 30; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--fx1), var(--fx2), var(--fx3)); }

/* nav with a sliding highlight, like the Voice platform's dock */
.nav { position: sticky; top: 0; z-index: 20; transition: background-color .5s var(--ease), border-color .5s var(--ease); border-bottom: 1px solid transparent; }
.nav.scrolled { background: color-mix(in srgb, var(--ground) 80%, transparent); border-bottom-color: var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.nav .wrap { display: flex; align-items: center; gap: 1.25rem; height: 4.75rem; }
.wordmark { font-size: 1.5rem; letter-spacing: -.025em; text-decoration: none; margin-right: auto; display: flex; gap: .28em; align-items: baseline; white-space: nowrap; }
.wordmark .sub { color: var(--accent-text); }
.links { position: relative; display: flex; gap: .25rem; align-items: center; }
.links .ind { position: absolute; left: 0; top: 50%; height: 2.4rem; margin-top: -1.2rem; width: 0; border-radius: 999px; background: color-mix(in srgb, var(--ink) 9%, transparent); opacity: 0; pointer-events: none; }
.links a.nl { position: relative; color: var(--muted); text-decoration: none; font-size: .95rem; padding: .5rem .9rem; white-space: nowrap; transition: color .25s var(--ease); }
.links a.nl:hover, .links a.nl.on { color: var(--ink); }
.links .btn { margin-left: .6rem; }
@media (max-width: 860px) { .links a.opt { display: none; } }
@media (max-width: 560px) { .links a.nl { display: none; } .nav .wrap { gap: .75rem; } }

/* buttons: springs come from site.js; CSS only handles colour */
.btn {
  display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; border: 0;
  font-size: 1rem; padding: .9rem 1.5rem; border-radius: 999px; text-decoration: none;
  background: var(--accent); color: var(--on); position: relative;
  box-shadow: 0 .75rem 2rem -1rem var(--glow); transition: box-shadow .4s var(--ease);
}
.btn { overflow: hidden; isolation: isolate; }
.btn::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,.28) 50%, transparent 70%); transform: translateX(-120%); transition: transform .8s var(--ease); }
.btn:hover::after { transform: translateX(120%); }
.btn:hover { box-shadow: 0 1rem 2.6rem -.8rem var(--glow); }
.btn.ghost { background: color-mix(in srgb, var(--ink) 4%, transparent); color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1.5px var(--accent-text); }
.btn.small { padding: .6rem 1.1rem; font-size: .92rem; }
.btn .arr { display: inline-block; transition: transform .5s cubic-bezier(.2,1.6,.4,1); }
.btn:hover .arr { transform: translateX(.25rem); }

/* hero: text on the left, a live scene on the right */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 3rem; align-items: center; min-height: min(48rem, calc(100svh - 4.75rem)); padding-block: 3rem 4rem; }
@media (max-width: 960px) { .hero { grid-template-columns: 1fr; min-height: 0; padding-block: 3rem; } }
.hero-text { display: grid; gap: 1.5rem; }
.eyebrow { font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent-text); display: inline-flex; align-items: center; gap: .6rem; }
.eyebrow .dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--accent-text); box-shadow: 0 0 0 0 var(--accent-text); animation: ping 2.2s var(--ease) infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-text) 60%, transparent); } 80%, 100% { box-shadow: 0 0 0 .7rem transparent; } }
.hero h1 { font-size: clamp(2.4rem, calc(1.2rem + 3.2vw), 4.6rem); line-height: 1.0; letter-spacing: -.045em; }
.hero h1 .w { display: inline-block; white-space: nowrap; }
.hero .lede { font-size: clamp(1.05rem, calc(.9rem + .3vw), 1.25rem); color: var(--muted); max-width: 34em; }
.ctas { display: flex; flex-wrap: wrap; gap: .8rem; padding-top: .4rem; }
.hl { color: var(--accent-text); }

/* word rotator inside a headline */
.rot { display: inline-grid; vertical-align: bottom; overflow: hidden; padding-bottom: .08em; margin-bottom: -.08em; }
.rot > span { grid-area: 1 / 1; justify-self: start; color: var(--accent-text); white-space: nowrap; }

/* the live scene box on the right of the hero */
.scene { position: relative; aspect-ratio: 1 / 1; width: 100%; max-width: 38rem; justify-self: center; container-type: inline-size; }
@media (max-width: 960px) { .scene { max-width: 26rem; } }

/* marquee strip */
.marquee { position: relative; overflow: hidden; border-block: 1px solid var(--line); padding-block: 1.1rem; -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee .track { display: flex; width: max-content; gap: 3rem; animation: slide 38s linear infinite; }
.marquee span:hover { color: var(--ink); }
.marquee span { transition: color .3s var(--ease); font-family: var(--head); font-weight: 700; font-size: clamp(1.2rem, calc(.8rem + 1vw), 1.8rem); letter-spacing: -.02em; color: color-mix(in srgb, var(--ink) 55%, transparent); white-space: nowrap; display: inline-flex; align-items: center; gap: 3rem; }
.marquee span::after { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: var(--accent-text); }
@keyframes slide { to { transform: translateX(-50%); } }

/* sections */
section.block { padding-block: clamp(4rem, 9vh, 7.5rem); }
.sec-head { display: grid; gap: .9rem; max-width: 46rem; margin-bottom: 2.6rem; }
.sec-head h2 { font-size: clamp(1.9rem, calc(1rem + 1.8vw), 3rem); line-height: 1.04; letter-spacing: -.035em; }
.sec-head p { color: var(--muted); font-size: 1.1rem; }
.grid { display: grid; gap: 1.1rem; }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1060px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 820px) { .g3, .g2 { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .g4 { grid-template-columns: 1fr; } }

/* cards: tilt and glare come from site.js; no backdrop blur so scrolling stays smooth */
.card {
  position: relative; display: grid; gap: .8rem; align-content: start; min-width: 0;
  padding: 1.7rem; border-radius: var(--r); background: var(--surface); border: 1px solid var(--line);
  text-decoration: none; color: inherit; overflow: hidden; isolation: isolate;
  transition: border-color .4s var(--ease), filter .5s var(--ease);
}
/* a light edge that follows the pointer around the card's border */
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; pointer-events: none; opacity: 0; transition: opacity .35s var(--ease);
  background: radial-gradient(14rem circle at var(--mx, 50%) var(--my, 0%), var(--c, var(--accent-text)), transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}
.card:hover::after { opacity: 1; }
/* the other cards in a row step back while you look at one */
.grid:has(> .card:hover) > .card:not(:hover) { filter: brightness(.68) saturate(.8); }
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity .35s var(--ease);
  background: radial-gradient(22rem circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--c, var(--accent)) 26%, transparent), transparent 70%);
}
.card:hover::before { opacity: 1; }
.card:hover { border-color: color-mix(in srgb, var(--c, var(--accent-text)) 55%, transparent); }
.card h3 { font-size: 1.4rem; letter-spacing: -.02em; line-height: 1.18; }
.card p { color: var(--muted); font-size: 1rem; }
.mark { width: 2.9rem; height: 2.9rem; border-radius: .9rem; display: grid; place-items: center; background: color-mix(in srgb, var(--c, var(--accent)) 18%, transparent); color: var(--c, var(--accent-text)); }
.mark svg { width: 1.45rem; height: 1.45rem; }
.go { font-family: var(--head); font-weight: 700; font-size: .95rem; color: var(--c, var(--accent-text)); display: inline-flex; gap: .4rem; margin-top: .3rem; }
.go .arr { display: inline-block; transition: transform .5s cubic-bezier(.2,1.6,.4,1); }
.card:hover .go .arr { transform: translateX(.35rem); }
.card.muted { opacity: .72; }
.pill { justify-self: start; font-family: var(--head); font-weight: 700; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; padding: .35rem .7rem; border-radius: 999px; background: color-mix(in srgb, var(--c, var(--accent)) 16%, transparent); color: var(--c, var(--accent-text)); display: inline-flex; gap: .4rem; align-items: center; }
.pill.live::before { content: ""; width: .4rem; height: .4rem; border-radius: 50%; background: currentColor; animation: blink 1.6s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .25; } }
.pill.quiet { background: color-mix(in srgb, var(--ink) 8%, transparent); color: var(--muted); }

/* numbered steps, used only where order matters; a line fills as you scroll */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.1rem; position: relative; padding-top: 1.6rem; }
.steps::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: var(--line); }
.steps .fill { position: absolute; left: 0; right: 0; top: -1px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--fx1), var(--fx2)); transform-origin: 0 50%; transform: scaleX(0); }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }
.step { display: grid; gap: .6rem; min-width: 0; }
.step::before { counter-increment: s; content: "0" counter(s); font-family: var(--head); font-weight: 700; font-size: .85rem; letter-spacing: .1em; color: var(--accent-text); }
.step h3 { font-size: 1.3rem; letter-spacing: -.02em; }
.step p { color: var(--muted); font-size: 1rem; }

/* founders */
.person { display: flex; gap: 1rem; align-items: center; }
.avatar { flex: none; width: 4rem; height: 4rem; border-radius: 1.2rem; display: grid; place-items: center; font-family: var(--head); font-weight: 700; font-size: 1.25rem; color: var(--on); background: linear-gradient(135deg, var(--fx1), var(--fx2)); box-shadow: 0 .8rem 2rem -1rem var(--glow); }
.person b { display: block; font-family: var(--head); font-size: 1.2rem; letter-spacing: -.01em; }
.person span { color: var(--muted); font-size: .95rem; }

/* contact form */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: start; }
@media (max-width: 820px) { .contact { grid-template-columns: 1fr; } }
form.card { gap: 1rem; }
label { display: grid; gap: .4rem; font-size: .9rem; color: var(--muted); }
input, textarea, select {
  font: inherit; font-size: 1rem; color: var(--ink); background: color-mix(in srgb, var(--ink) 5%, transparent);
  border: 1px solid var(--line); border-radius: .8rem; padding: .8rem 1rem; width: 100%;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent-text); background: color-mix(in srgb, var(--ink) 8%, transparent); box-shadow: 0 0 0 .3rem color-mix(in srgb, var(--accent) 25%, transparent); }
textarea { min-height: 8rem; resize: vertical; }
select option { background: var(--ground); }
.form-note { font-size: .92rem; color: var(--accent-text); min-height: 1.4em; }

/* footer with a big closing wordmark */
footer { border-top: 1px solid var(--line); padding-block: 3rem 2.5rem; margin-top: 3rem; overflow: hidden; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 1.8rem; align-items: center; justify-content: space-between; color: var(--muted); font-size: .92rem; }
footer nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; transition: color .25s var(--ease); }
footer a:hover { color: var(--ink); }
.bigmark { font-family: var(--head); font-weight: 700; font-size: clamp(4rem, 12vw, 12rem); letter-spacing: -.06em; line-height: .8; text-align: center; margin: 0 0 2rem; background: linear-gradient(180deg, color-mix(in srgb, var(--ink) 16%, transparent), transparent 85%); -webkit-background-clip: text; background-clip: text; color: transparent; user-select: none; white-space: nowrap; }

/* click ripple on buttons and cards */
.ripple { position: absolute; border-radius: 50%; pointer-events: none; background: radial-gradient(closest-side, color-mix(in srgb, var(--ink) 35%, transparent), transparent); transform: scale(0); animation: ripple .7s var(--ease) forwards; z-index: 0; }
@keyframes ripple { to { transform: scale(1); opacity: 0; } }

/* cursor companion: a ring that trails the pointer on a spring, wraps buttons, and turns into a reticle over cards */
.cur { position: fixed; left: 0; top: 0; z-index: 70; pointer-events: none; border-radius: 50%; opacity: 0;
  border: 1.5px solid color-mix(in srgb, var(--accent-text) 70%, transparent); background: transparent;
  transition: background-color .3s var(--ease), border-color .3s var(--ease); will-change: transform, width, height; }
.cur.on { background: color-mix(in srgb, var(--accent-text) 12%, transparent); }
.cur.snap { background: color-mix(in srgb, var(--accent-text) 9%, transparent); border-color: color-mix(in srgb, var(--accent-text) 45%, transparent); }
.cur svg { position: absolute; inset: -22%; width: 144%; height: 144%; max-width: none; opacity: 0; transition: opacity .3s var(--ease); }
.cur svg circle { fill: none; stroke: var(--accent-text); stroke-width: 2.5; stroke-dasharray: 9 16; stroke-linecap: round; }
.cur.ret svg { opacity: .9; animation: spin 5s linear infinite; }
.cur.ret { border-color: transparent; }
.cur-dot { position: fixed; left: -.2rem; top: -.2rem; width: .4rem; height: .4rem; border-radius: 50%; background: var(--accent-text); z-index: 71; pointer-events: none; opacity: 0; transition: opacity .2s; }
.cur-pulse { position: fixed; z-index: 69; pointer-events: none; width: 3rem; height: 3rem; margin: -1.5rem 0 0 -1.5rem; border-radius: 50%; border: 2px solid var(--accent-text); animation: pulse-out .6s var(--ease) forwards; }
@keyframes pulse-out { from { transform: scale(.3); opacity: .9; } to { transform: scale(1.6); opacity: 0; } }
@keyframes spin { to { transform: rotate(1turn); } }

/* choice chips: used instead of the browser's dropdown so options match the site */
fieldset.choice { border: 0; margin: 0; padding: 0; display: grid; gap: .5rem; min-width: 0; }
fieldset.choice legend { padding: 0; margin-bottom: .45rem; font-size: .9rem; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { position: relative; cursor: pointer; display: inline-flex; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-block; font-size: .95rem; padding: .6rem 1rem; border-radius: 999px; color: var(--ink); background: color-mix(in srgb, var(--ink) 5%, transparent); border: 1px solid var(--line); transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease); }
.chip:hover span { border-color: color-mix(in srgb, var(--accent-text) 60%, transparent); }
.chip input:checked + span { background: var(--accent); color: var(--on); border-color: transparent; box-shadow: 0 .5rem 1.4rem -.6rem var(--glow); }
.chip input:focus-visible + span { outline: 2px solid var(--accent-text); outline-offset: 2px; }
input:-webkit-autofill, textarea:-webkit-autofill { -webkit-text-fill-color: var(--ink); box-shadow: 0 0 0 100rem color-mix(in srgb, var(--ink) 6%, var(--ground)) inset; caret-color: var(--ink); }
html { scrollbar-color: color-mix(in srgb, var(--accent-text) 45%, transparent) transparent; }

/* entrance: hidden only once the motion library is running, so the page never gets stuck blank */
.anim .rv { opacity: 0; }
.anim .hero h1:not(.split), .anim .hero h1 .w, .anim .hero [data-in], .anim .scene { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .anim .rv, .anim .hero h1, .anim .hero h1 .w, .anim .hero [data-in], .anim .scene { opacity: 1; }
}