/* Pletho on the Thora dots system: same geometry, typography and motion as labs.thora.cloud, in Pletho violet. */
:root{color-scheme:dark;--ink:#f7f4ef;--muted:#b9bdbe;--brand:#8f46fb;--accent:#9b7bff;--header:78px;--scene-height:calc(100svh - var(--header));background:#030609;color:var(--ink);font-family:Inter,system-ui,sans-serif;scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;min-width:320px;overflow-x:clip}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
h1,h2,h3,p{margin:0}
h1,h2{font-family:Sora,Inter,system-ui,sans-serif;font-weight:520;letter-spacing:-.05em;overflow-wrap:break-word}
.skip-link{position:fixed;z-index:100;top:-80px;left:1rem;padding:.8rem 1rem;background:var(--ink);color:#111}.skip-link:focus{top:1rem}

/* Header */
.site-header{position:sticky;z-index:50;top:0;display:flex;align-items:center;height:var(--header);padding:0 clamp(.5rem,2.5vw,2.2rem);background:rgb(8 7 14 / .94);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.header-shell{display:flex;align-items:center;gap:1rem;width:100%;min-width:0;max-width:1480px;height:60px;margin:0 auto;padding:0 .55rem 0 1.1rem;border:1px solid rgb(255 255 255 / .13);border-radius:999px;background:rgb(18 15 28 / .87)}
.brand{display:inline-flex;align-items:center;gap:.55rem;flex:none;font:600 .96rem Sora,system-ui,sans-serif;letter-spacing:-.045em;white-space:nowrap}
.brand svg{display:block;width:30px;height:auto}.brand strong{color:#b9a3ff;font-weight:600}
.header-nav{display:flex;align-items:center;gap:clamp(.9rem,2vw,1.6rem);margin-left:auto;padding:.7rem 1.1rem;border-radius:999px;background:rgb(255 255 255 / .035);font-size:.78rem;color:#c3bfcc;white-space:nowrap}
.header-nav a{position:relative;transition:color .2s ease}
.header-nav a::after{content:'';position:absolute;left:0;right:100%;bottom:-.5rem;height:2px;border-radius:2px;background:linear-gradient(90deg,#8f46fb,#5bdae2);transition:right .25s ease}
.header-nav a:hover::after,.header-nav a:focus-visible::after{right:0}
.header-nav a:hover,.cloud-link:hover,.footer-links a:hover{color:var(--accent)}
.cloud-link{display:inline-flex;align-items:center;gap:.4rem;flex:none;padding:.6rem .95rem;border:1px solid #37324a;border-radius:999px;font-size:.76rem;font-weight:650;white-space:nowrap}
.cloud-link i{width:.45rem;height:.45rem;border-radius:50%;background:#fc5101;box-shadow:0 0 10px #fc5101}
.scroll-progress{position:absolute;bottom:0;left:6%;right:6%;height:2px}
.scroll-progress span{display:block;width:0;height:100%;background:var(--brand);box-shadow:0 0 16px var(--brand)}

/* Journey canvas and rail */
.journey{position:relative;isolation:isolate;background:#030609}
.journey-visual{position:sticky;z-index:0;top:var(--header);height:var(--scene-height);margin-bottom:calc(var(--scene-height) * -1);overflow:hidden;pointer-events:none;background:radial-gradient(circle at 50% 43%,#16121f 0,#030609 56%)}
.journey-visual::before,.journey-visual::after{content:'';position:absolute;pointer-events:none}
.journey-visual::before{inset:-18%;opacity:.6;filter:blur(34px);background:radial-gradient(circle at 21% 25%,rgb(143 70 251 / .17),transparent 24%),radial-gradient(circle at 75% 57%,rgb(91 218 226 / .1),transparent 26%),radial-gradient(circle at 58% 83%,rgb(255 110 142 / .08),transparent 25%);animation:aurora-drift 20s ease-in-out infinite alternate}
.journey-visual::after{inset:0;opacity:.2;background-image:linear-gradient(rgb(255 255 255 / .07) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / .07) 1px,transparent 1px);background-size:72px 72px;-webkit-mask-image:radial-gradient(ellipse at center,#000,transparent 75%);mask-image:radial-gradient(ellipse at center,#000,transparent 75%)}
.journey-visual canvas{position:relative;z-index:1;display:block;width:100%;height:100%}
.journey-rail{position:fixed;z-index:45;top:50%;right:clamp(.7rem,2.5vw,2rem);display:grid;gap:.5rem;transform:translateY(-50%);transition:opacity .25s ease}
.journey:not(.is-in-view) .journey-rail{opacity:0;pointer-events:none}
.journey-rail a{display:grid;place-items:center;width:2.05rem;height:2.05rem;border:1px solid transparent;border-radius:50%;background:rgb(5 6 11 / .5);color:#77737f;font:650 .6rem ui-monospace,SFMono-Regular,Consolas,monospace;transition:color .2s,border-color .2s,box-shadow .2s,transform .2s}
.journey-rail a:hover{color:#e6e5ea;transform:scale(1.1)}
.journey-rail a.is-active{color:var(--accent);border-color:rgb(143 70 251 / .55);background:rgb(22 18 32 / .9);box-shadow:0 0 1.3rem rgb(143 70 251 / .3)}

/* Scenes */
.scene{position:relative;z-index:2;display:grid;align-items:center;min-height:var(--scene-height);padding:clamp(2rem,6vh,3.5rem) clamp(1.5rem,7vw,8rem) clamp(3.5rem,8vh,5rem);scroll-margin-top:var(--header)}
.scene::after{content:'';position:absolute;bottom:1.9rem;left:8%;right:8%;height:1px;background:rgb(255 255 255 / .1)}
.hero-kicker,.scene-number,.scene-tag,.closing-kicker{font:650 .68rem/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em;color:var(--accent)}
.scene-hero{place-items:end center;text-align:center}
.hero-copy{display:grid;justify-items:center;max-width:62rem;padding-bottom:clamp(.5rem,3vh,2.5rem)}
.hero-kicker{margin-bottom:1rem}
.hero-copy h1{max-width:14ch;padding-bottom:.05em;font-size:clamp(2.7rem,min(6vw,9.5vh),5.8rem);line-height:1.02;text-wrap:balance}
.hero-copy>p:not(.hero-kicker){max-width:40rem;margin-top:1.1rem;color:#c6c3cc;font-size:clamp(.98rem,1.3vw,1.18rem);line-height:1.55}
.scene-pole{position:absolute;top:21%;transform:translateY(-50%);font:520 clamp(1rem,1.55vw,1.35rem) Sora,sans-serif;letter-spacing:-.05em;color:#e2e1e6;opacity:.8}
.scene-pole-left{left:5%}.scene-pole-right{right:5%}
.button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:52px;margin-top:1.5rem;padding:.75rem 1.5rem;border-radius:999px;font-size:.84rem;font-weight:700;transition:transform .2s,background .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{position:relative;overflow:hidden;background:var(--brand);color:#fff;box-shadow:0 8px 30px rgb(143 70 251 / .25)}
.button-primary:hover{background:#9d5cff}
.button-primary::before{content:'';position:absolute;inset:0;background:linear-gradient(105deg,transparent 20%,rgb(255 255 255 / .3) 48%,transparent 70%);transform:translateX(-135%);transition:transform .65s ease}
.button-primary:hover::before{transform:translateX(135%)}
.button-soon{border:1px solid rgb(155 123 255 / .5);background:rgb(155 123 255 / .1);color:#ded4ff;cursor:default;box-shadow:0 0 30px rgb(155 123 255 / .1)}
.button-soon:hover{transform:none}
.soon-dot{width:.58rem;height:.58rem;border-radius:50%;background:var(--accent);box-shadow:0 0 0 .28rem rgb(155 123 255 / .13),0 0 18px var(--accent);animation:soon-pulse 2.8s ease-in-out infinite}
.scene-stage{--stage-accent:#5bdae2;--stage-glow:rgb(91 218 226 / .11)}
.scene-stage[data-scene="2"]{--stage-accent:#ac8bff;--stage-glow:rgb(172 139 255 / .11)}
.scene-stage[data-scene="3"]{--stage-accent:#ff6e8e;--stage-glow:rgb(255 110 142 / .11)}
.scene-stage[data-scene="4"]{--stage-accent:#9b7bff;--stage-glow:rgb(155 123 255 / .11)}
.scene-stage[data-scene="5"]{--stage-accent:#aee26c;--stage-glow:rgb(174 226 108 / .11)}
.scene-stage[data-scene="6"]{--stage-accent:#5bdae2;--stage-glow:rgb(91 218 226 / .11)}
.scene-stage::before{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(circle at 52% 52%,var(--stage-glow),transparent 46%);opacity:.1;transition:opacity .8s ease}
.scene-stage.is-active::before{opacity:1}
.scene-copy{position:relative;z-index:2;width:min(100%,36rem);opacity:.45;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.scene.is-active .scene-copy{opacity:1;transform:none}
.scene-left .scene-copy{justify-self:start}.scene-right .scene-copy{justify-self:end}
.scene-copy h2{max-width:12ch;margin-top:.8rem;padding-bottom:.06em;font-size:clamp(2.6rem,min(5.4vw,10vh),5.2rem);line-height:1.02;text-wrap:balance;background:linear-gradient(120deg,#fff 15%,var(--stage-accent) 120%);-webkit-background-clip:text;background-clip:text;color:transparent}
.scene-copy p{max-width:34rem;margin-top:1.2rem;color:var(--muted);font-size:clamp(.98rem,1.25vw,1.15rem);line-height:1.6}
.scene-tag{display:block;margin-top:1.3rem}
.scene-stage .scene-number,.scene-stage .scene-tag{color:var(--stage-accent)}
.scene-stage .scene-number{display:inline-flex;align-items:center;gap:.75rem;font-size:.64rem}
.scene-stage .scene-number::before{content:'';display:block;flex:none;width:1.35rem;height:1.35rem;border:1px solid currentColor;border-radius:50%;box-shadow:0 0 18px var(--stage-glow);background:radial-gradient(circle,currentColor 0 2px,transparent 3px)}
.scene-aside{position:absolute;bottom:3.4rem;right:8%;color:var(--stage-accent);font:600 .6rem ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.17em;white-space:nowrap;opacity:0;transform:translateY(8px);transition:opacity .5s ease .2s,transform .5s ease .2s}
.scene-right .scene-aside{left:8%;right:auto}
.scene.is-active .scene-aside{opacity:.8;transform:none}
.scene-closing{place-items:end center;text-align:center;padding-bottom:clamp(3rem,8vh,6rem)}
.scene-closing::after{display:none}
.closing-inner{position:relative;z-index:2;max-width:50rem;opacity:.45;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.scene-closing.is-active .closing-inner{opacity:1;transform:none}
.scene-closing h2{margin-top:.8rem;padding-bottom:.06em;font-size:clamp(2.3rem,min(4.6vw,8vh),4.4rem);line-height:1.04;text-wrap:balance;background:linear-gradient(100deg,#fff 30%,#c9b5ff 70%,#8f46fb);-webkit-background-clip:text;background-clip:text;color:transparent}
.scene-closing p:not(.closing-kicker){max-width:34rem;margin:1.1rem auto 0;color:#c4c2c8;font-size:clamp(.98rem,1.2vw,1.08rem);line-height:1.6}

/* Footer */
.site-footer{position:relative;z-index:3;padding:3.5rem clamp(1.5rem,5vw,5rem) 1.5rem;border-top:1px solid #2a2830;background:#0b0a11}
.footer-inner{display:grid;grid-template-columns:1fr 1fr auto;gap:2rem;max-width:1400px;margin:auto}
.footer-inner p{max-width:280px;color:#a7a4ad;font-size:.85rem;line-height:1.5}
.footer-links{display:grid;align-content:start;gap:.75rem;font-size:.8rem}
.footer-bottom{display:flex;justify-content:space-between;gap:1rem;max-width:1400px;margin:3.5rem auto 0;padding-top:1.2rem;border-top:1px solid #2a2830;color:#8a8790;font:600 .64rem ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.11em}

/* Back to top */
.back-to-top{position:fixed;z-index:48;right:clamp(.7rem,2.5vw,2rem);bottom:clamp(1rem,3vw,2rem);display:grid;place-items:center;width:3rem;height:3rem;padding:0;border:0;border-radius:50%;background:rgb(12 10 18 / .82);color:var(--ink);cursor:pointer;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 10px 30px rgb(0 0 0 / .35);opacity:0;visibility:hidden;transform:translateY(12px) scale(.9);transition:opacity .3s ease,transform .35s cubic-bezier(.2,.8,.2,1),visibility 0s linear .35s}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.back-to-top-ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.back-to-top-ring circle{fill:none;stroke-width:2}
.back-to-top-ring-track{stroke:rgb(255 255 255 / .12)}
.back-to-top-ring-value{stroke:var(--brand);stroke-dasharray:1;stroke-dashoffset:1;stroke-linecap:round}
.back-to-top-arrow{position:relative;width:1.15rem;height:1.15rem;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

@keyframes aurora-drift{from{transform:translate3d(-2%,-2%,0) rotate(-4deg)}to{transform:translate3d(3%,2%,0) rotate(4deg)}}
@keyframes soon-pulse{50%{box-shadow:0 0 0 .4rem rgb(155 123 255 / .04),0 0 22px var(--accent);opacity:.75}}

@media(max-width:900px){
  .header-nav{gap:.8rem;padding:.6rem .9rem}
  .scene-stage{align-items:end}
  .scene-stage .scene-copy,.scene-left .scene-copy,.scene-right .scene-copy{justify-self:center;text-align:center}
  .scene-stage .scene-number{justify-content:center}
  .scene-copy h2,.scene-copy p{margin-inline:auto}
  .scene-aside{display:none}
  .scene-pole{top:10%;font-size:1rem}.scene-pole-left{left:1.5rem}.scene-pole-right{right:4rem}
  .scene-stage::before{background:radial-gradient(circle at 50% 26%,var(--stage-glow),transparent 43%)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:650px){
  :root{--header:68px}
  .header-shell{height:54px;padding:0 .4rem 0 .9rem}
  .header-nav{display:none}
  .cloud-link{margin-left:auto}
  .journey-rail{top:auto;right:50%;bottom:.35rem;grid-auto-flow:column;gap:.06rem;padding:.25rem;border:1px solid rgb(255 255 255 / .08);border-radius:999px;background:rgb(5 6 11 / .78);transform:translateX(50%)}
  .journey-rail a{width:1.8rem;height:1.8rem}
  .scene{padding:2rem 1.25rem 5.5rem}
  .scene::after{bottom:3.6rem;left:1rem;right:1rem}
  .scene-pole{top:9%;font-size:.95rem}.scene-pole-left{left:1.25rem}.scene-pole-right{right:1.25rem}
  .hero-copy h1{font-size:clamp(2.4rem,11vw,3.3rem)}
  .scene-copy h2{font-size:clamp(2.2rem,10vw,3rem)}
  .scene-copy p{margin-top:.9rem;font-size:.95rem}
  .footer-inner{grid-template-columns:1fr}
  .back-to-top{right:.75rem;bottom:3.3rem;width:2.7rem;height:2.7rem}
}
@media(prefers-reduced-motion:reduce){
  :root{scroll-behavior:auto}
  .journey-visual::before,.soon-dot{animation:none}
  .button,.journey-rail,.journey-rail a,.scene-copy,.scene-aside,.scene-stage::before,.header-nav a::after,.button-primary::before,.closing-inner,.back-to-top{transition:none}
  .scene-copy,.closing-inner{transform:none;opacity:1}
}