/* ============ SPenGestureFix site — monochrome, logo-matched ============ */
:root{
  --bg:#000000;
  --bg2:#0a0a0a;
  --surface:rgba(255,255,255,.04);
  --surface-strong:rgba(255,255,255,.08);
  --border:rgba(255,255,255,.13);
  --border-bright:rgba(255,255,255,.4);
  --text:#ffffff;
  --muted:#a6a6a6;
  --dim:#6e6e6e;
  --radius:20px;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,'Cascadia Code',Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:#fff;color:#000}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:#000}
::-webkit-scrollbar-thumb{background:#242424;border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:#3a3a3a}

img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
section{scroll-margin-top:84px}
h1,h2,h3,h4{text-wrap:balance}
p{text-wrap:pretty}

.container{max-width:1180px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

code,kbd{
  font-family:var(--mono);
  font-size:.86em;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  padding:.1em .38em;
  border-radius:6px;
  overflow-wrap:break-word;
}
kbd{background:rgba(255,255,255,.12);font-size:.8em}

/* ---- background decor ---- */
.bg-grid{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 75%);
}
.glow{position:fixed;border-radius:50%;filter:blur(120px);z-index:-3;pointer-events:none}
.g1{width:560px;height:560px;background:rgba(255,255,255,.07);top:-180px;left:50%;transform:translateX(-50%)}
.g2{width:420px;height:420px;background:rgba(255,255,255,.04);top:30%;right:-200px}
.g3{width:420px;height:420px;background:rgba(255,255,255,.04);bottom:-160px;left:-160px}

/* ---- reveal ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:none}

/* ---- nav ---- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,border-color .3s,box-shadow .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(0,0,0,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--border);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.06rem;letter-spacing:-.01em}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;
  background:#000;border:1.5px solid rgba(255,255,255,.85);
  box-shadow:0 0 0 3px rgba(255,255,255,.06);
}
.brand-mark svg{width:20px;height:20px}
.brand-name b{color:#fff;font-weight:800}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{
  padding:8px 13px;border-radius:9px;font-size:.9rem;color:var(--muted);font-weight:500;
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:var(--surface-strong)}
.nav-links a.active{color:#fff}
.nav-cta .btn-sm{padding:8px 16px;font-size:.87rem}
.nav-burger{display:none;background:none;border:1px solid var(--border);border-radius:10px;width:42px;height:42px;flex-direction:column;align-items:center;justify-content:center;gap:5px;margin-left:auto}
.nav-burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .25s,opacity .25s}
body.menu-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.menu-open .nav-burger span:nth-child(2){opacity:0}
body.menu-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- buttons & pills ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn svg{width:17px;height:17px}
.btn-primary{background:#fff;color:#000;box-shadow:0 6px 26px rgba(255,255,255,.18)}
.btn-primary:hover{transform:translateY(-2px);background:#e9e9e9;box-shadow:0 10px 34px rgba(255,255,255,.24)}
.btn-ghost{border-color:var(--border);background:var(--surface);color:#fff}
.btn-ghost:hover{border-color:var(--border-bright);background:var(--surface-strong);transform:translateY(-2px)}
.btn.lg{padding:16px 34px;font-size:1.02rem}
.pill{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  font-size:.76rem;font-weight:600;letter-spacing:.02em;color:var(--muted);
  background:var(--surface-strong);border:1px solid var(--border);
}
.pill-grad{background:#fff;color:#000;border:none}

/* ---- hero ---- */
.hero{padding:158px 0 96px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badges{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.hero h1{
  font-size:clamp(2.3rem,4.6vw,3.55rem);
  line-height:1.12;letter-spacing:-.03em;font-weight:800;margin-bottom:22px;
}
.stroke-word{position:relative;display:inline-block;color:#fff}
.stroke-underline{position:absolute;left:-2%;bottom:-8px;width:104%;height:14px}
.stroke-underline path{
  stroke:#fff;stroke-width:4.5;stroke-linecap:round;
  stroke-dasharray:230;stroke-dashoffset:230;
  animation:draw 1.1s .5s cubic-bezier(.6,0,.3,1) forwards;
}
@keyframes draw{to{stroke-dashoffset:0}}
.lead{font-size:1.13rem;color:var(--muted);max-width:56ch;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-actions.center{justify-content:center}
.hero-stats{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats dt{font-size:2rem;font-weight:800;letter-spacing:-.02em;color:#fff;font-variant-numeric:tabular-nums}
.hero-stats dd{color:var(--dim);font-size:.85rem;font-weight:500}

/* phone mockup */
.hero-visual{display:flex;flex-direction:column;align-items:center;gap:18px}
.phone{
  width:min(310px,82vw);aspect-ratio:9/18.6;border-radius:40px;padding:11px;
  background:linear-gradient(160deg,#1a1a1a,#050505 60%);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 30px 80px rgba(0,0,0,.8),0 0 70px rgba(255,255,255,.06),inset 0 1px 0 rgba(255,255,255,.1);
  position:relative;
}
.phone::before{
  content:"";position:absolute;top:22px;left:50%;transform:translateX(-50%);
  width:88px;height:24px;border-radius:999px;background:#000;z-index:3;
}
.phone-screen{
  width:100%;height:100%;border-radius:30px;overflow:hidden;position:relative;
  background:
    radial-gradient(circle at 80% 0%,rgba(255,255,255,.07),transparent 46%),
    radial-gradient(circle at 0% 100%,rgba(255,255,255,.04),transparent 42%),
    #060606;
}
.phone-statusbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 22px 8px;font-size:.72rem;color:var(--muted);
}
.ps-icons{display:flex;gap:5px;align-items:center}
.ps-icons i{width:13px;height:9px;border-radius:2.5px;background:#2a2a2a;display:inline-block}
.ps-icons i.bat{width:17px;background:rgba(255,255,255,.25);border:1px solid rgba(255,255,255,.6)}
.phone-content{padding:16px 18px;display:flex;flex-direction:column;gap:11px}
.sk{height:9px;border-radius:5px;background:#1c1c1c;animation:pulse 2.6s ease-in-out infinite}
.sk-title{width:52%;height:15px;background:linear-gradient(90deg,#2e2e2e,#222)}
.sk-lg{width:86%;height:9px}
.sk-short{width:38%;animation-delay:.4s}
.sk-card{
  display:flex;gap:11px;align-items:center;padding:13px;border-radius:15px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
}
.sk-dot{width:34px;height:34px;border-radius:11px;flex-shrink:0;background:linear-gradient(135deg,#2c2c2c,#1e1e1e);animation-delay:.15s}
.sk-lines{display:flex;flex-direction:column;gap:7px;flex:1}
.sk-lines .sk:last-child{width:55%}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}

/* Air Command wheel — contained quarter-arc fan */
.wheel{position:absolute;right:14px;bottom:16px;width:180px;height:180px;z-index:4}
.wheel-core{
  position:absolute;right:8px;bottom:8px;width:54px;height:54px;border-radius:50%;
  border:none;display:grid;place-items:center;
  background:#fff;color:#000;
  box-shadow:0 6px 22px rgba(255,255,255,.25),inset 0 0 0 1px rgba(255,255,255,.4);
  transition:transform .3s cubic-bezier(.22,1,.36,1),box-shadow .3s;
  z-index:2;
}
.wheel-core svg{width:22px;height:22px}
.wheel-core:hover{transform:scale(1.07)}
.wheel.open .wheel-core{transform:rotate(-38deg)}
.wheel-slot{
  position:absolute;left:123px;top:123px;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;color:#fff;
  background:#0d0d0d;
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 4px 16px rgba(0,0,0,.6);
  transform:translate(var(--tx,0),var(--ty,0));
  opacity:0;pointer-events:none;scale:.3;
  transition:transform .34s cubic-bezier(.22,1,.36,1),opacity .24s ease,scale .34s cubic-bezier(.22,1,.36,1),background .2s,color .2s,border-color .2s;
}
.wheel.open .wheel-slot{opacity:1;pointer-events:auto;scale:1}
.wheel.open .wheel-slot:nth-child(1){transition-delay:.03s}
.wheel.open .wheel-slot:nth-child(2){transition-delay:.06s}
.wheel.open .wheel-slot:nth-child(3){transition-delay:.09s}
.wheel.open .wheel-slot:nth-child(4){transition-delay:.12s}
.wheel.open .wheel-slot:nth-child(5){transition-delay:.15s}
.wheel.open .wheel-slot:nth-child(6){transition-delay:.18s}
.wheel-slot:hover{background:#fff;color:#000;border-color:#fff}
.wheel-slot svg{width:19px;height:19px}
.wheel-slot::after{
  content:attr(data-label);position:absolute;bottom:calc(100% + 7px);left:50%;
  transform:translateX(-50%) translateY(3px);white-space:nowrap;
  background:#050505;border:1px solid var(--border);color:#fff;
  font-size:.66rem;font-weight:600;padding:4px 9px;border-radius:7px;
  opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:3;
}
.wheel-slot:hover::after{opacity:1;transform:translateX(-50%) translateY(0)}
.wheel-hint{font-size:.83rem;color:var(--dim)}

/* ---- generic sections ---- */
/* prevent grid blowout from long code/words at any viewport */
.two-col>*,.tablet-grid>*,.setup-grid>*,.dev-grid>*,
.hero-grid>*,.compat-grid>*,.detail-grid>*,.feature-grid>*,.action-grid>*{min-width:0}
.section{padding:104px 0}
.section.alt{background:var(--bg2);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.section-head{max-width:720px;margin-bottom:56px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:.74rem;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:#fff;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:rgba(255,255,255,.6)}
h2{
  font-size:clamp(1.85rem,3.6vw,2.65rem);line-height:1.15;
  letter-spacing:-.025em;font-weight:800;margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:1.04rem}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px;
  transition:transform .25s ease,border-color .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-4px);border-color:var(--border-bright);box-shadow:0 18px 44px rgba(0,0,0,.6)}
.card h3{font-size:1.14rem;font-weight:700;margin-bottom:9px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:.94rem}
.card-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;margin-bottom:19px;
  color:#fff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
}
.card-icon svg{width:23px;height:23px}
.card-icon.sm{width:42px;height:42px;border-radius:12px;margin-bottom:14px}
.card-icon.sm svg{width:20px;height:20px}
.card-icon.danger{background:rgba(255,255,255,.04);border-style:dashed}
.card-icon.ok{background:#fff;color:#000;border-color:#fff}

/* problem / solution */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}

/* features */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:20px}

/* gesture demo */
.gesture-demo{
  margin-top:26px;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;
  background:
    radial-gradient(circle at 90% 20%,rgba(255,255,255,.06),transparent 45%),
    var(--surface);
}
.gesture-demo h3{font-size:1.5rem;letter-spacing:-.02em}
.gesture-demo-copy p{margin-bottom:20px}
.gesture-buttons{display:flex;flex-wrap:wrap;gap:10px}
.g-btn{
  padding:10px 20px;border-radius:11px;font-weight:600;font-size:.89rem;
  color:var(--muted);background:var(--surface-strong);border:1px solid var(--border);
  transition:all .2s;
}
.g-btn:hover{border-color:var(--border-bright);color:#fff}
.g-btn.active{background:#fff;color:#000;border-color:#fff}
.gesture-out{
  min-width:280px;padding:28px 32px;border-radius:18px;text-align:center;
  background:rgba(255,255,255,.03);border:1px solid var(--border);
}
.gesture-out.flash{animation:flash .45s ease}
@keyframes flash{
  0%{box-shadow:0 0 0 0 rgba(255,255,255,.5)}
  100%{box-shadow:0 0 0 22px rgba(255,255,255,0)}
}
.go-label{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:8px}
.go-action{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;color:#fff;margin-bottom:7px}
.go-desc{color:var(--muted);font-size:.87rem}

/* timeline */
.timeline{list-style:none;position:relative;max-width:760px;margin:0 0 44px;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(255,255,255,.7),rgba(255,255,255,.25));opacity:.5;
}
.tl-step{display:flex;gap:26px;align-items:flex-start;padding:17px 0;position:relative}
.tl-marker{
  width:42px;height:42px;flex-shrink:0;border-radius:13px;display:grid;place-items:center;
  font-weight:700;font-family:var(--mono);font-size:.95rem;color:#fff;
  background:#0c0c0c;
  border:1px solid rgba(255,255,255,.4);
  box-shadow:0 0 0 5px #000,0 4px 14px rgba(0,0,0,.5);
  position:relative;z-index:1;
}
.tl-body h3{font-size:1.06rem;font-weight:700;margin-bottom:5px}
.tl-body p{color:var(--muted);font-size:.94rem;max-width:62ch}

/* detail cards + callout */
.detail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-bottom:26px}
.detail-card h4{display:flex;align-items:center;gap:11px;font-size:1rem;font-weight:700;margin-bottom:11px}
.dot{width:9px;height:9px;border-radius:50%;flex-shrink:0;display:inline-block;background:#fff;box-shadow:0 0 10px rgba(255,255,255,.7)}
.dot-violet,.dot-cyan,.dot-pink{background:#fff}
.callout{
  display:flex;gap:20px;align-items:flex-start;max-width:900px;
  padding:26px 30px;border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.22);
}
.callout.warn{background:rgba(255,255,255,.03);border-color:var(--border)}
.callout-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  color:#fff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.3);
}
.callout-icon svg{width:20px;height:20px}
.callout h4{font-size:1rem;margin-bottom:7px}
.callout p{color:var(--muted);font-size:.93rem}

/* wacom mode */
.tablet-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;align-items:start;margin-bottom:26px}
.checklist{list-style:none;display:flex;flex-direction:column;gap:13px}
.checklist li{
  position:relative;padding-left:31px;color:var(--muted);font-size:.96rem;
}
.checklist li b{color:#fff}
.checklist li::before{
  content:"";position:absolute;left:0;top:5px;width:17px;height:17px;border-radius:6px;
  background:#fff;
  mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  -webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  mask-size:contain;-webkit-mask-size:contain;mask-repeat:no-repeat;-webkit-mask-repeat:no-repeat;
}
.protocol{padding:26px}
.proto-title{font-size:1rem;margin-bottom:16px}
.flag-table{width:100%;border-collapse:collapse;margin-top:20px;font-size:.88rem}
.flag-table th{
  text-align:left;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--dim);padding:8px 10px;border-bottom:1px solid var(--border);
}
.flag-table td{padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--muted)}
.flag-table tr:last-child td{border-bottom:none}
.proto-note{margin-top:16px;font-size:.84rem;color:var(--dim)}

/* pc connect */
.pc-connect{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;
  background:
    radial-gradient(circle at 0% 0%,rgba(255,255,255,.06),transparent 50%),
    var(--surface);
}
.pc-copy h3{font-size:1.2rem;margin-bottom:9px}

/* code blocks */
.codeblock{
  background:#050505;border:1px solid var(--border);border-radius:14px;overflow:hidden;
  margin:14px 0 4px;
}
.wide{margin:30px 0 0}
.code-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:9px 16px;border-bottom:1px solid var(--border);
  font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);
  background:rgba(255,255,255,.03);
}
.copy-btn{
  font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);background:none;border:1px solid var(--border);border-radius:7px;
  padding:4px 11px;transition:all .2s;
}
.copy-btn:hover{color:#fff;border-color:var(--border-bright)}
.copy-btn.copied{color:#fff;border-color:#fff}
.codeblock pre{
  padding:17px 19px;overflow-x:auto;
  font-family:var(--mono);font-size:.83rem;line-height:1.75;color:#f2f2f2;
}
.tok-c{color:#6b6b6b}

/* actions */
.action-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:26px}
.action-card{padding:22px}
.action-card h3{font-size:.98rem}
.action-card p{font-size:.86rem}

/* screenshots gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin-bottom:26px}
.shot{
  background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:12px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.shot:hover{transform:translateY(-5px);border-color:var(--border-bright);box-shadow:0 22px 50px rgba(0,0,0,.7)}
.shot img{border-radius:16px;width:100%;height:auto}
.shot figcaption{
  padding:13px 8px 6px;text-align:center;color:var(--muted);font-size:.86rem;font-weight:500;
}
.shot.wide{max-width:860px;margin:0 auto}
.shot.wide figcaption{padding-bottom:10px}

/* setup */
.setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.req-card h3,.steps-card h3{font-size:1.12rem;margin-bottom:18px}
h3.mt{margin-top:30px}
.req-note{margin-top:14px;font-family:var(--mono);font-size:.76rem;color:var(--dim)}
.steps{list-style:none;counter-reset:step;display:flex;flex-direction:column}
.steps li{
  counter-increment:step;display:flex;gap:16px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.09);
}
.steps li:last-child{border-bottom:none}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  font-family:var(--mono);font-weight:600;font-size:.8rem;color:#fff;
  width:34px;height:34px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.3);border-radius:10px;
}
.steps li span{color:var(--muted);font-size:.94rem;padding-top:4px}
.steps li b{color:#fff}
.steps-note{margin-top:18px;font-size:.86rem;color:var(--dim)}

/* compat */
.compat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.device-name{font-size:1.5rem !important;font-weight:800 !important;color:#fff !important;letter-spacing:-.02em;margin:14px 0 10px !important}
.device-name span{display:block;font-size:.85rem;font-weight:500;font-family:var(--mono);color:var(--muted)}
.badge{
  display:inline-flex;padding:5px 13px;border-radius:999px;font-size:.72rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;
}
.badge-ok{color:#000;background:#fff;border:1px solid #fff}
.badge-warn{color:#fff;background:rgba(255,255,255,.08);border:1px solid var(--border-bright)}

/* dev / limitations */
.dev-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:start}
.x-list{list-style:none;display:flex;flex-direction:column;gap:13px}
.x-list li{position:relative;padding-left:29px;color:var(--muted);font-size:.93rem}
.x-list li::before{
  content:"";position:absolute;left:0;top:5px;width:16px;height:16px;background:rgba(255,255,255,.75);
  mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='M18 6 6 18'/%3E%3Cpath d='m6 6 12 12'/%3E%3C/svg%3E");
  -webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='M18 6 6 18'/%3E%3Cpath d='m6 6 12 12'/%3E%3C/svg%3E");
  mask-size:contain;-webkit-mask-size:contain;mask-repeat:no-repeat;-webkit-mask-repeat:no-repeat;
}
.filemap{display:flex;flex-direction:column;gap:9px;margin-bottom:6px}
.filemap dt{font-family:var(--mono);font-size:.78rem;color:#fff}
.filemap dd{font-size:.86rem;color:var(--muted);margin:2px 0 8px;padding-bottom:9px;border-bottom:1px dashed rgba(255,255,255,.08)}

/* download */
.dl-hero{
  display:flex;gap:34px;align-items:center;
  background:
    radial-gradient(circle at 0% 0%,rgba(255,255,255,.08),transparent 50%),
    var(--surface);
  padding:34px;
}
.dl-icon-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;flex-shrink:0}
.dl-icon{
  width:120px;height:120px;border-radius:28px;
  border:1px solid rgba(255,255,255,.3);
  box-shadow:0 14px 44px rgba(0,0,0,.7),0 0 44px rgba(255,255,255,.12);
}
.dl-info h3{font-size:1.45rem;letter-spacing:-.02em;margin-bottom:8px;display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.dl-pkg{font-family:var(--mono);font-size:.68rem;font-weight:500;color:var(--dim);background:var(--surface-strong);border:1px solid var(--border);padding:3px 10px;border-radius:999px;letter-spacing:.04em}
.dl-info p{margin-bottom:16px;max-width:60ch}
.dl-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  font-size:.83rem;color:var(--muted);background:var(--surface-strong);border:1px solid var(--border);
}
.chip svg{width:14px;height:14px;color:#fff}
.chip b{color:#fff;font-variant-numeric:tabular-nums}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px}
.dl-sub{margin:44px 0 20px;font-size:1.2rem;letter-spacing:-.01em}
.release-list{display:flex;flex-direction:column;gap:14px}
.release{padding:24px 28px}
.release-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:6px}
.release-tag{font-family:var(--mono);font-weight:600;font-size:.95rem;color:#fff}
.release-name{font-weight:600;color:var(--text);font-size:.95rem}
.release-date{margin-left:auto;color:var(--dim);font-size:.8rem;font-family:var(--mono)}
.release-notes{color:var(--muted);font-size:.9rem;margin:6px 0 4px}
.release-assets{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.asset-btn{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:10px;
  font-size:.83rem;font-weight:600;color:#fff;
  background:var(--surface-strong);border:1px solid var(--border);
  transition:border-color .2s,transform .2s,background .2s;
}
.asset-btn:hover{border-color:#fff;background:rgba(255,255,255,.12);transform:translateY(-1px)}
.asset-btn svg{width:14px;height:14px}
.asset-size{color:var(--dim);font-weight:500;font-size:.75rem;font-family:var(--mono)}
.release-state{
  display:flex;align-items:center;gap:12px;padding:26px 28px;
  color:var(--muted);font-size:.92rem;
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius);
}
.release-state a{color:#fff;text-decoration:underline}
.spinner{
  width:17px;height:17px;border-radius:50%;flex-shrink:0;
  border:2px solid rgba(255,255,255,.2);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* final cta */
.final-cta{padding:130px 0 140px;text-align:center;position:relative;overflow:hidden}
.final-cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 55% 65% at 50% 100%,rgba(255,255,255,.09),transparent 70%);
}
.final-cta h2{font-size:clamp(2.1rem,4.5vw,3.2rem);margin-bottom:16px}
.final-cta p{color:var(--muted);max-width:46ch;margin:0 auto 36px}
.final-cta .eyebrow{justify-content:center}
.final-cta .eyebrow::after{content:"";width:26px;height:1px;background:rgba(255,255,255,.6)}

/* footer */
.footer{border-top:1px solid var(--border);background:#030303;padding:64px 0 34px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;margin-bottom:48px}
.footer-brand p{color:var(--dim);font-size:.9rem;margin-top:16px;max-width:38ch}
.footer-col{display:flex;flex-direction:column;gap:11px}
.footer-col h4{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--dim);margin-bottom:7px;font-weight:600;
}
.footer-col a{color:var(--muted);font-size:.9rem;width:fit-content;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);padding-top:26px;
  display:flex;flex-direction:column;gap:8px;
}
.footer-bottom p{color:var(--dim);font-size:.82rem}
.fine{opacity:.75}

/* ---- responsive ---- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:64px}
  .hero{padding-top:138px}
  .hero-visual{order:2}
  .tablet-grid,.setup-grid,.dev-grid,.pc-connect{grid-template-columns:1fr}
  .gesture-demo{grid-template-columns:1fr;gap:26px}
  .gesture-out{min-width:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  body.menu-open .nav-links{
    display:flex;position:fixed;top:68px;left:0;right:0;z-index:99;
    flex-direction:column;padding:18px 24px 26px;gap:6px;
    background:rgba(0,0,0,.97);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
  }
  body.menu-open .nav-links a{padding:13px 14px;font-size:1rem}
  .two-col{grid-template-columns:1fr}
  .section{padding:78px 0}
  .hero-stats{gap:26px}
  .timeline::before{left:21px}
  .tl-marker{width:36px;height:36px;border-radius:11px}
  .footer-grid{grid-template-columns:1fr}
  .callout{flex-direction:column;gap:14px}
  .dl-hero{flex-direction:column;align-items:flex-start;padding:26px}
  .dl-icon-wrap{flex-direction:row}
  .release-date{margin-left:0;width:100%}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .hero{padding-top:122px}
  .hero-stats{gap:20px}
  .hero-stats dt{font-size:1.6rem}
  .lead{font-size:1.02rem}
  .wheel{transform:scale(.8);transform-origin:100% 100%}
  .gesture-out{padding:22px 18px}
  .go-action{font-size:1.4rem}
  .codeblock pre{font-size:.74rem;padding:14px 15px}
  .flag-table th,.flag-table td{padding:6px 7px}
  .card{padding:24px 20px}
  .protocol{padding:22px 18px}
  .release{padding:20px 18px}
  .dl-actions .btn{flex:1 1 100%}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .tl-step{gap:16px}
  .callout{padding:22px 20px}
  .gallery{grid-template-columns:1fr 1fr;gap:12px}
  .shot.wide{grid-column:1 / -1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}