/* Plureto brand, final 2026-10-19. Tokens for both modes, grain, glass bar, keys, switch. */
:root{--bg:#FFFFFF;--bg2:#EEF1FF;--surface:#FFFFFF;--fg:#121018;--fg2:#5B5768;--line:#D9DCE8;--purple:#371B90;--cobalt:#1A2FB8;--logo:#371B90;--accent:#371B90;--on:#FFFFFF;--side:#1E0E55;--dot:#371B90;
  --font:'Space Grotesk',system-ui,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
  --shear:2px; --ease:cubic-bezier(.2,0,0,1); --dur:120ms; --glass-dur:240ms; --glass-ease:cubic-bezier(.3,.7,.1,1); color-scheme:light }
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0B0B10;--bg2:#13141C;--surface:#16171F;--fg:#EEEBF6;--fg2:#9B95B0;--line:#272935;--purple:#B9A7F5;--cobalt:#4A6FF5;--logo:#B9A7F5;--accent:#B9A7F5;--on:#0B0B10;--side:#7F6AD6;--dot:#B9A7F5; color-scheme:dark }}
:root[data-theme="dark"]{--bg:#0B0B10;--bg2:#13141C;--surface:#16171F;--fg:#EEEBF6;--fg2:#9B95B0;--line:#272935;--purple:#B9A7F5;--cobalt:#4A6FF5;--logo:#B9A7F5;--accent:#B9A7F5;--on:#0B0B10;--side:#7F6AD6;--dot:#B9A7F5; color-scheme:dark }
.rule{position:relative;height:1px;background:var(--line)}.rule::after{content:"";position:absolute;left:var(--shear);right:calc(-1*var(--shear));top:var(--shear);height:1px;background:var(--line)}
/* texture: a spectrum from coarse to glass. The grain is a 200 px tile of fractal noise, ink in light mode, bone in dark mode. */
:root{--grain-ink:url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' seed='7' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23g)'/%3E%3C/svg%3E");--grain-bone:url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' seed='7' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23g)'/%3E%3C/svg%3E");--grain:var(--grain-ink);--grain-page:.025;--grain-panel:.04;--grain-knob:.08;
  --glass-fill:rgba(255,255,255,.30);--glass-rim:rgba(255,255,255,.45);--glass-blur:6px;--glass-sat:1.6;--shx:2px;--shy:1px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--grain:var(--grain-bone);--glass-fill:rgba(255,255,255,.14);--glass-rim:rgba(255,255,255,.28)}}
:root[data-theme="dark"]{--grain:var(--grain-bone);--glass-fill:rgba(255,255,255,.14);--glass-rim:rgba(255,255,255,.28)}
body::before{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;background-image:var(--grain);background-size:200px 200px;opacity:var(--grain-page)}
.card::after,.demo::after,.mock::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background-image:var(--grain);background-size:200px 200px;opacity:var(--grain-panel)}
.demo,.mock{position:relative}
.card>*,.demo>*,.mock>*{position:relative}
.btn,.lnk,.seg,.sw{position:relative;z-index:2}
.topbar{background:color-mix(in srgb,var(--bg) 72%,transparent);-webkit-backdrop-filter:blur(20px) saturate(1.8);backdrop-filter:blur(20px) saturate(1.8)}
/* tangible controls */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:2px;border:1px solid var(--accent);background:var(--accent);color:var(--on);font:500 15px/1 var(--font);cursor:pointer;
  box-shadow:var(--shx) var(--shy) 0 0 var(--side);transform:translate(0,0);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);user-select:none}
.btn:hover{transform:translate(-1px,0);box-shadow:calc(var(--shx) + 2px) var(--shy) 0 0 var(--side)}
.btn:active,.btn.down{transform:translate(var(--shx),var(--shy));box-shadow:calc(-1*var(--shx)) 0 0 0 var(--side)}
.btn.sec{background:var(--surface);color:var(--fg);border-color:var(--fg);box-shadow:var(--shx) var(--shy) 0 0 var(--fg)}
.btn.sec:hover{box-shadow:calc(var(--shx) + 2px) var(--shy) 0 0 var(--fg)}
.btn.sec:active{box-shadow:calc(-1*var(--shx)) 0 0 0 var(--fg)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--fg);box-shadow:var(--shx) var(--shy) 0 0 var(--line)}
.btn.ghost:hover{box-shadow:calc(var(--shx) + 2px) var(--shy) 0 0 var(--line)}
.btn.ghost:active{box-shadow:calc(-1*var(--shx)) 0 0 0 var(--line)}
:focus-visible{outline:2px solid var(--cobalt);outline-offset:2px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;background:var(--surface)}
.seg button{font:500 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:8px 12px;border:0;background:transparent;color:var(--fg2);cursor:pointer;transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.seg button[aria-pressed="true"]{background:var(--bg2);color:var(--fg);box-shadow:inset var(--shx) var(--shy) 0 0 var(--line)}
.sw{position:relative;width:44px;height:24px;border-radius:12px;border:1px solid var(--line);background:var(--bg2);cursor:pointer;padding:0;transition:background-color var(--glass-dur) var(--glass-ease),border-color var(--glass-dur) var(--glass-ease)}
.sw[aria-checked="true"]{background:var(--accent);border-color:var(--accent)}
.sw i{position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:var(--glass-fill);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-sat));backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-sat));
  box-shadow:inset 0 0 0 1px var(--glass-rim),inset 0 1px 1px var(--glass-rim),inset 0 -2px 3px rgba(0,0,0,.10),2px 1px 3px rgba(0,0,0,.20);transform-origin:left center;
  transition:transform var(--glass-dur) var(--glass-ease),box-shadow var(--glass-dur) var(--glass-ease)}
.sw i::after{content:"";position:absolute;inset:0;border-radius:50%;background-image:var(--grain);background-size:200px 200px;opacity:var(--grain-knob)}
.sw[aria-checked="true"] i{transform:translateX(20px);transform-origin:right center;box-shadow:inset 0 0 0 1px var(--glass-rim),inset 0 1px 1px var(--glass-rim),inset 0 -2px 3px rgba(0,0,0,.10),-2px 1px 3px rgba(0,0,0,.20)}
.sw:active i{transform:scaleX(1.18)}
.sw[aria-checked="true"]:active i{transform:translateX(20px) scaleX(1.18)}
.lnk{color:var(--cobalt);border-bottom:1px solid currentColor;transition:transform var(--dur) var(--ease)}
.lnk:hover{transform:translate(2px,0);text-decoration:none}

/* ---- plureto.com page styles (on top of the brand stylesheet above) ---- */
@font-face{font-family:'Space Grotesk';src:url(fonts/SpaceGrotesk-300-700.woff2) format('woff2');font-weight:300 700;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url(fonts/IBMPlexMono-400.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url(fonts/IBMPlexMono-500.woff2) format('woff2');font-weight:500;font-display:swap}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--bg);color:var(--fg);font:400 17px/1.5 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
h1,h2{font-weight:500;text-wrap:balance;letter-spacing:-.02em}
img,video{display:block;max-width:100%;height:auto}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
@media (max-width:600px){.wrap{padding:0 16px}}
.lab{font:500 12px/16px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--fg2)}
.lab b{color:var(--accent);font-weight:500}
.rule{margin:0}

/* top bar: one frosted bar on every page */
.topbar{position:sticky;top:0;z-index:5;border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:16px;height:56px}
.lock{display:inline-flex;align-items:baseline;gap:.22em;color:var(--logo);font:500 22px/1 var(--font);letter-spacing:-.02em;text-transform:lowercase}
.lock svg{height:.7em;width:auto;fill:currentColor;flex:none}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{display:inline-block;font:500 12px/16px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--fg2);padding:8px 10px;border-radius:2px;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}
.nav a:hover,.nav a[aria-current]{color:var(--fg)}
.nav a:hover{transform:translate(2px,0)}
.sw{flex:none}
@media (max-width:860px){.nav a.opt{display:none}}
@media (max-width:520px){.nav{display:none}}

/* hero: one image, one sentence */
.hero{background:#0B0B10;color:#EEEBF6}
.hero .wrap{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:center;min-height:min(78vh,760px);padding-block:48px}
.hero h1{font-size:clamp(34px,4.6vw,56px);line-height:1.08}
.hero .sub{margin-top:24px;font-size:19px;line-height:27px;color:#9B95B0;max-width:40ch}
.hero .keys{display:flex;gap:16px;margin-top:48px;flex-wrap:wrap}
.hero picture,.hero img{width:100%}
.hero .btn.sec{background:#16171F;color:#EEEBF6;border-color:#EEEBF6;box-shadow:var(--shx) var(--shy) 0 0 #EEEBF6}
.hero .btn.sec:hover{box-shadow:calc(var(--shx) + 2px) var(--shy) 0 0 #EEEBF6}
.hero .btn.sec:active{box-shadow:calc(-1*var(--shx)) 0 0 0 #EEEBF6}
.hero .btn{--side:#7F6AD6;background:#B9A7F5;border-color:#B9A7F5;color:#0B0B10}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;min-height:0}.hero picture{order:-1}}

/* tiles: one idea per screen */
.tile{padding-block:96px;content-visibility:auto;contain-intrinsic-size:auto 640px}
.tile+.tile{border-top:1px solid var(--line)}
.tile h2{font-size:clamp(30px,3.6vw,44px);line-height:1.1}
.tile .sub{margin-top:16px;font-size:19px;line-height:27px;color:var(--fg2);max-width:52ch}
.tile .lab{margin-bottom:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:24px}.tile{padding-block:64px}}
figure{margin:0}
figure img{border-radius:4px;background:#0B0B10}
figcaption{margin-top:8px}
.panel{background:var(--bg2);border-radius:4px;padding:24px}

/* film */
.film{background:var(--bg2)}
.film video{width:100%;aspect-ratio:16/9;border-radius:4px;background:#0B0B10}
.film .lab{margin:16px 0 0}

/* specs: large numerals, one label each */
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
@media (max-width:860px){.specs{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.specs{grid-template-columns:1fr}}
.spec{padding:24px;border:1px solid var(--line);border-radius:4px;background:var(--surface);position:relative}
.spec .n{font:500 clamp(48px,6vw,76px)/1 var(--font);letter-spacing:-.03em;color:var(--fg);white-space:nowrap}
.spec .n small{font-size:.42em;letter-spacing:-.01em;color:var(--fg2);margin-left:.1em}
.spec .l{margin-top:16px;font:400 15px/22px var(--font);color:var(--fg)}
.spec .lab{position:absolute;top:24px;right:24px;margin:0}
.spec .lab b{color:var(--accent)}
.note{margin-top:24px;max-width:70ch}

/* steps and lists */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
@media (max-width:860px){.steps{grid-template-columns:1fr}}
.step .lab{margin-bottom:8px}
.step p{font-size:17px;line-height:25px}
.list{list-style:none;margin:48px 0 0;padding:0;display:grid;gap:0}
.list li{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:16px 0;border-top:1px solid var(--line)}
.list li:last-child{border-bottom:1px solid var(--line)}
.list b{font-weight:500}
@media (max-width:600px){.list li{grid-template-columns:1fr;gap:4px}}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
@media (max-width:860px){.cols{grid-template-columns:1fr}}
.cols h3{font:500 17px/24px var(--font);margin-bottom:8px}
.cols ul{margin:0;padding:0;list-style:none;color:var(--fg2);font-size:15px;line-height:22px}
.cols li{padding:6px 0;border-top:1px solid var(--line)}

/* factories */
.big{font:500 clamp(96px,16vw,200px)/.95 var(--font);letter-spacing:-.04em;color:var(--fg)}
.big small{font-size:.3em;letter-spacing:-.01em;color:var(--accent)}

/* close and footer */
.close{text-align:left}
.close .keys{margin-top:32px;display:flex;gap:16px;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding:48px 0;color:var(--fg2);font-size:14px;line-height:20px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px 48px;align-items:center}
footer .lock{font-size:18px}
footer .lnk{color:var(--cobalt)}
footer .end{margin-left:auto}

/* contact */
.people{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
@media (max-width:700px){.people{grid-template-columns:1fr}}
.person{padding:24px;border:1px solid var(--line);border-radius:4px;background:var(--surface)}
.person .lab{margin-bottom:8px}
.person h3{font:500 22px/28px var(--font)}
.person .mail{display:inline-block;margin-top:16px;font:500 17px/24px var(--mono);color:var(--cobalt);border-bottom:1px solid currentColor;transition:transform var(--dur) var(--ease)}
.person .mail:hover{transform:translate(2px,0)}