/* Fluxius landing — design system. Тема: data-theme="dark|light" на <html>. Все цвета — oklch-токены, как в продукте. */
@font-face{font-family:"Geist Variable";src:url(fonts/geist-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"Geist Mono Variable";src:url(fonts/geist-mono-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-display:swap}

:root{
  --sans:"Geist Variable",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Geist Mono Variable",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);--r:16px;--r-sm:11px;
  --claude:oklch(0.74 0.13 45);--codex:oklch(0.78 0.1 175);--warn:oklch(0.82 0.14 80);--ok:oklch(0.78 0.15 150);--danger:oklch(0.68 0.19 25);--violet:oklch(0.72 0.14 290);
}
:root,[data-theme="dark"]{
  color-scheme:dark;
  --bg:oklch(0.155 0.004 260);--panel:oklch(0.185 0.005 260);--raised:oklch(0.225 0.006 260);--hover:oklch(0.255 0.007 260);
  --line:oklch(0.285 0.007 260);--line-soft:oklch(0.235 0.006 260);
  --ink:oklch(0.96 0.003 260);--mute:oklch(0.74 0.008 260);--faint:oklch(0.58 0.01 260);
  --accent:oklch(0.89 0.17 118);--accent-ink:oklch(0.22 0.04 118);--accent-text:oklch(0.89 0.17 118);
  --glow:color-mix(in oklch,var(--accent) 30%,transparent);--shadow:0 50px 100px -40px rgba(0,0,0,.75);--nav-bg:color-mix(in oklch,var(--bg) 78%,transparent);
}
[data-theme="light"]{
  color-scheme:light;
  --bg:oklch(0.985 0.002 100);--panel:oklch(0.965 0.004 100);--raised:oklch(0.94 0.005 100);--hover:oklch(0.92 0.006 100);
  --line:oklch(0.86 0.006 100);--line-soft:oklch(0.9 0.005 100);
  --ink:oklch(0.2 0.01 260);--mute:oklch(0.42 0.012 260);--faint:oklch(0.55 0.012 260);
  --accent:oklch(0.86 0.18 118);--accent-ink:oklch(0.22 0.04 118);--accent-text:oklch(0.5 0.15 130);
  --glow:color-mix(in oklch,var(--accent) 40%,transparent);--shadow:0 40px 80px -40px rgba(40,50,20,.35);--nav-bg:color-mix(in oklch,var(--bg) 82%,transparent);
}

*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background .3s,color .3s}
::selection{background:color-mix(in oklch,var(--accent) 38%,transparent)}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--accent-text);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 14px;border-radius:8px;z-index:100;font-weight:600}
.skip:focus{left:12px}
.mono{font-family:var(--mono)}
code{font-family:var(--mono);font-size:.86em;background:var(--raised);border:1px solid var(--line-soft);padding:1px 6px;border-radius:6px}
.acc{color:var(--accent-text)}

/* ───── nav ───── */
nav.top{position:sticky;top:0;z-index:60;backdrop-filter:blur(16px) saturate(1.4);background:var(--nav-bg);border-bottom:1px solid var(--line-soft)}
nav.top .wrap{display:flex;align-items:center;height:64px;gap:26px}
.logo{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:-.01em;font-size:17px}
.logo img{width:26px;height:26px}
.links{display:flex;gap:22px;margin-left:auto;color:var(--mute);font-size:14px}
.links a{transition:color .2s}.links a:hover{color:var(--ink)}
.tbtn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--raised);color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:background .2s,transform .2s}
.tbtn:hover{background:var(--hover);transform:translateY(-1px)}
.tbtn svg{width:18px;height:18px}
[data-theme="dark"] .t-sun,[data-theme="light"] .t-moon{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:12px;font-weight:550;font-size:15px;border:1px solid var(--line);background:var(--raised);color:var(--ink);cursor:pointer;transition:transform .2s,background .2s,box-shadow .25s}
.btn:hover{background:var(--hover);transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:transparent}
.btn.primary:hover{filter:brightness(1.05);box-shadow:0 12px 40px -8px var(--glow)}
nav.top .btn{height:38px;padding:0 16px;font-size:14px}
.ar{width:16px;height:16px}

/* ───── type ───── */
.eyebrow{font:500 12.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent-text);margin-bottom:14px;display:flex;align-items:center;gap:10px}
h1{font-size:clamp(40px,6.4vw,78px);line-height:1.02;letter-spacing:-.035em;font-weight:650}
h2{font-size:clamp(30px,4.2vw,50px);line-height:1.07;letter-spacing:-.03em;font-weight:650;max-width:780px}
h3{letter-spacing:-.01em}
.sub{color:var(--mute);font-size:18px;max-width:640px;margin-top:16px}
section{padding:110px 0}
.center{text-align:center}.center h2,.center .sub{margin-left:auto;margin-right:auto}.center .eyebrow{justify-content:center}
.soon{display:inline-block;font:500 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;padding:2px 8px;border-radius:99px;border:1px solid color-mix(in oklch,var(--warn) 55%,transparent);color:var(--warn);vertical-align:middle;margin-left:8px}
[data-theme="light"] .soon{color:oklch(0.5 0.12 70)}

/* ───── hero ───── */
.hero{position:relative;padding:84px 0 40px;text-align:center;overflow:hidden}
.aurora{position:absolute;inset:-120px 0 auto;height:720px;pointer-events:none;z-index:-1}
.aurora i{position:absolute;border-radius:50%;filter:blur(100px);opacity:.28}
.aurora i:nth-child(1){width:560px;height:560px;left:8%;background:var(--accent);animation:drift 16s ease-in-out infinite alternate}
.aurora i:nth-child(2){width:460px;height:460px;right:6%;top:90px;background:var(--claude);opacity:.2;animation:drift 20s ease-in-out infinite alternate-reverse}
.aurora i:nth-child(3){width:400px;height:400px;left:42%;top:200px;background:var(--codex);opacity:.15;animation:drift 24s ease-in-out infinite alternate}
[data-theme="light"] .aurora i{opacity:.22}
@keyframes drift{to{transform:translate(70px,40px) scale(1.15)}}
.grid-bg{position:absolute;inset:0 0 auto;height:700px;z-index:-1;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:56px 56px;opacity:.4;mask-image:radial-gradient(ellipse 60% 70% at 50% 0,#000,transparent)}
.pill{display:inline-flex;align-items:center;gap:10px;padding:6px 15px 6px 8px;border:1px solid var(--line);border-radius:99px;background:color-mix(in oklch,var(--panel) 80%,transparent);font-size:13px;color:var(--mute)}
.pill .dots{display:inline-flex;gap:4px}.pill .d{width:9px;height:9px;border-radius:50%}
.hero h1{margin:26px auto 22px;max-width:960px}
.hero .lead{font-size:clamp(17px,2vw,20px);color:var(--mute);max-width:700px;margin:0 auto 34px}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.note{margin-top:18px;color:var(--faint);font-size:13.5px}
.fine{margin-top:16px;color:var(--faint);font-size:12.5px}

/* ───── product shots (реальные записи интерфейса) ───── */
.shot{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-align:left;box-shadow:var(--shadow);position:relative}
.shot-bar{display:flex;align-items:center;gap:7px;height:38px;padding:0 14px;border-bottom:1px solid var(--line-soft);background:var(--bg)}
.shot-bar span{width:11px;height:11px;border-radius:50%;background:var(--raised)}
.shot-bar i{margin-left:12px;font:normal 12.5px var(--mono);color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vwrap{--w:var(--cw);--h:var(--ch);--x:var(--cx);--y:var(--cy);--nw:1280;--nh:800;position:relative;overflow:hidden;aspect-ratio:var(--w) / var(--h);background:#0d0e10}
.vwrap video,.vwrap img{position:absolute;left:0;top:0;display:block;max-width:none;width:calc(100% * var(--nw) / var(--w));height:auto;aspect-ratio:var(--nw) / var(--nh);object-fit:cover;transform:translate(calc(-100% * var(--x) / var(--nw)),calc(-100% * var(--y) / var(--nh)))}
@media(max-width:700px){.vwrap[data-m]{--w:390;--h:844;--x:0;--y:0;--nw:390;--nh:844;max-width:340px;margin:0 auto}}
.hero-shot{margin:64px auto 0;max-width:1120px;transform:perspective(1800px) rotateX(8deg) scale(.95);transform-origin:50% 0;transition:opacity .8s,transform 1.3s var(--ease)}
.hero-shot.in{transform:none}
.hero-shot:after{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;box-shadow:0 0 0 1px color-mix(in oklch,var(--accent) 25%,transparent),0 0 80px -10px var(--glow)}

/* ───── logos marquee ───── */
.logos{padding:34px 0;border-block:1px solid var(--line-soft);overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.logos-label{text-align:center;font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin:84px 0 16px}
.marq{display:flex;gap:46px;width:max-content;animation:marq 38s linear infinite;color:var(--faint);font-weight:550;font-size:16px}
.marq span{display:flex;align-items:center;gap:9px;white-space:nowrap}.marq i{width:9px;height:9px;border-radius:3px;background:currentColor;opacity:.55}
@keyframes marq{to{transform:translateX(-50%)}}

/* ───── tour ───── */
.tour{margin-top:44px}
.tour-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:26px}
.stop{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:99px;border:1px solid var(--line);background:var(--panel);color:var(--mute);font:550 15px var(--sans);cursor:pointer;transition:background .25s,border-color .25s,color .25s,transform .2s}
.stop:hover{color:var(--ink);transform:translateY(-1px)}
.stop .n{font:500 12px var(--mono);color:var(--faint)}
.stop.on{background:color-mix(in oklch,var(--accent) 14%,var(--panel));border-color:color-mix(in oklch,var(--accent) 55%,var(--line));color:var(--ink)}
.stop.on .n{color:var(--accent-text)}
.tour-stage{max-width:1120px;margin:0 auto}
.tour-stage .vwrap{aspect-ratio:1280 / 800}
@media(max-width:700px){.tour-stage .vwrap[data-m]{aspect-ratio:390 / 844}}
.tour-cap{max-width:720px;margin:24px auto 0;text-align:center;color:var(--mute);font-size:17px;min-height:3.4em;transition:opacity .25s}
.tour-cap.swap{opacity:0}
.tv{position:absolute;inset:0;opacity:0;transition:opacity .5s;pointer-events:none}.tv.on{opacity:1}
.vwrap .tv video{position:absolute;inset:0;width:100%;height:100%;transform:none;object-fit:cover}

/* ───── feature rows (copy + shot) ───── */
.split{display:grid;grid-template-columns:1fr 1.25fr;gap:52px;align-items:center}
.split.rev{grid-template-columns:1.25fr 1fr}.split.rev .copy{order:2}
.ticks{list-style:none;padding:0;margin-top:24px;display:grid;gap:13px}
.ticks li{display:flex;gap:12px;color:var(--mute)}
.ticks li:before{content:"";flex:none;width:6px;height:6px;margin-top:10px;border-radius:2px;background:var(--accent)}
.ticks li b{color:var(--ink);font-weight:550}
.head2{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start;margin-bottom:44px}

/* ───── bento ───── */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:52px}
.bc{position:relative;grid-column:span 2;background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r);padding:26px;overflow:hidden;transition:border-color .3s,transform .3s;isolation:isolate}
.bc.w3{grid-column:span 3}.bc.w4{grid-column:span 4}.bc.w6{grid-column:span 6}
.bc:before{content:"";position:absolute;inset:0;background:radial-gradient(320px circle at var(--mx,50%) var(--my,0%),var(--glow),transparent 70%);opacity:0;transition:opacity .3s;z-index:-1}
.bc:hover{border-color:var(--line);transform:translateY(-3px)}.bc:hover:before{opacity:.55}
.gi{width:40px;height:40px;border-radius:11px;background:var(--raised);border:1px solid var(--line);display:grid;place-items:center;margin-bottom:16px;color:var(--accent-text)}
.gi svg{width:20px;height:20px}
.bc h3{font-size:18px;font-weight:600;margin-bottom:6px}
.bc p{color:var(--mute);font-size:14.5px}
.bc .vwrap{margin:18px -26px -26px;border-top:1px solid var(--line-soft)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chips span{font:500 12px var(--mono);padding:4px 10px;border-radius:99px;border:1px solid var(--line);background:var(--raised);color:var(--mute)}

/* ───── compare ───── */
.vs{margin-top:52px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--panel)}
.vs-h,.vs-r{display:grid;grid-template-columns:1.1fr 1fr 1.3fr}
.vs-h>div{padding:18px 24px;font-weight:600;font-size:15px;background:var(--bg);border-bottom:1px solid var(--line)}
.vs-h .fx{color:var(--accent-text);background:color-mix(in oklch,var(--accent) 8%,var(--bg))}
.vs-r>div{padding:17px 24px;border-bottom:1px solid var(--line-soft);font-size:15px}
.vs-r:last-child>div{border-bottom:0}
.vs-r>div:first-child{font-weight:550}.vs-r>div:nth-child(2){color:var(--faint)}
.vs-r>div:nth-child(3){background:color-mix(in oklch,var(--accent) 5%,transparent);display:flex;gap:10px}
.vs-r>div:nth-child(3):before{content:"";flex:none;width:16px;height:16px;margin-top:4px;background:var(--accent-text);-webkit-mask:var(--ck) center/contain no-repeat;mask:var(--ck) center/contain no-repeat}
:root{--ck:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3 8.5 3.2 3.2L13 5'/%3E%3C/svg%3E")}
.vs-foot{margin-top:18px;color:var(--faint);font-size:14.5px;text-align:center}

/* ───── how it works ───── */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:56px;position:relative}
.steps:before{content:"";position:absolute;left:5%;right:5%;top:22px;height:2px;background:var(--line-soft)}
.steps:after{content:"";position:absolute;left:5%;top:22px;height:2px;background:var(--accent);width:90%;box-shadow:0 0 12px var(--accent)}
.step{position:relative;display:flex;flex-direction:column}
.step .n{width:44px;height:44px;border-radius:50%;background:var(--panel);border:1px solid var(--accent);color:var(--accent-text);display:grid;place-items:center;font:600 15px var(--mono);margin-bottom:20px;position:relative;z-index:1}
.step h3{font-size:18px;margin-bottom:8px}.step p{color:var(--mute);font-size:14.5px;margin-bottom:16px}
.step .mini{margin-top:auto;border:1px solid var(--line-soft);background:var(--panel);border-radius:12px;padding:12px;font:12px/1.7 var(--mono);color:var(--mute)}
.mini .k{color:var(--accent-text)}.mini .g{color:var(--ok)}.mini .w{color:var(--warn)}

/* ───── security / coming soon / faq / cta ───── */
.sec{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:52px}
.coming{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:44px}
.faq{max-width:820px;margin:52px auto 0;display:grid;gap:10px}
details{border:1px solid var(--line-soft);background:var(--panel);border-radius:14px;padding:0 22px;transition:border-color .25s}
details[open]{border-color:var(--line)}
summary{list-style:none;cursor:pointer;padding:19px 0;font-weight:550;display:flex;align-items:center;gap:16px;font-size:16px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";margin-left:auto;font-size:22px;color:var(--faint);transition:transform .3s}
details[open] summary:after{transform:rotate(45deg);color:var(--accent-text)}
details p{color:var(--mute);padding:0 0 20px;font-size:15px;max-width:700px}
.final{text-align:center;position:relative;border:1px solid var(--line);background:var(--panel);border-radius:26px;padding:100px 24px;overflow:hidden}
.final:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 60% 80% at 50% 125%,var(--glow),transparent 70%)}
.final>*{position:relative}.final h2{margin:0 auto}.final .sub{margin:16px auto 32px}
footer{padding:44px 0 64px;color:var(--faint);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;border-top:1px solid var(--line-soft);padding-top:28px}
footer a:hover{color:var(--ink)}

/* ───── reveal (скрытие включается, только если запустился JS) ───── */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .8s,transform .8s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .hero-shot.rv{opacity:0}.js .hero-shot.rv.in{opacity:1}
.js .vs-r{opacity:0;transform:translateX(-14px);transition:.6s var(--ease)}.js .vs.in .vs-r{opacity:1;transform:none}
.js .steps:after{width:0;transition:width 2.4s var(--ease)}.js .steps.in:after{width:90%}
section{content-visibility:auto;contain-intrinsic-size:auto 900px}
.hero{content-visibility:visible}

@media(max-width:1020px){
  .links{display:none}nav.top .btn{margin-left:auto}
  .split,.split.rev,.head2{grid-template-columns:1fr;gap:34px}.split.rev .copy{order:0}
  .bento{grid-template-columns:repeat(2,1fr)}.bc,.bc.w3,.bc.w4,.bc.w6{grid-column:span 2}.bc.w3{grid-column:span 2}
  .steps{grid-template-columns:1fr 1fr;row-gap:34px}.steps:before,.steps:after{display:none}
  .sec,.coming{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  section{padding:76px 0}.hero{padding-top:52px}.hero-shot{transform:none}
  .bento,.steps,.sec,.coming{grid-template-columns:1fr}.bc,.bc.w3,.bc.w4,.bc.w6{grid-column:span 1}
  .vs-h,.vs-r{grid-template-columns:1fr}.vs-h>div:first-child{display:none}
  .vs-h>div,.vs-r>div{padding:14px 18px}.vs-r>div:first-child{background:var(--bg);font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint)}
  .shot-bar i{font-size:11.5px}.tour-tabs{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;margin-inline:-24px;padding-inline:24px;scrollbar-width:none}.stop{flex:none;padding:9px 15px;font-size:14px}.tour-cap{font-size:15px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}.hero-shot{transform:none}.js .rv,.js .vs-r{opacity:1;transform:none}.js .steps:after{width:90%}.marq{animation:none}}