:root{--bg:#070a12;--bg2:#0b1020;--surface:rgba(16,23,42,.78);--surface2:rgba(20,29,52,.92);--line:rgba(145,167,210,.18);--line2:rgba(122,158,255,.35);--text:#f4f7ff;--muted:#9daac4;--primary:#59a5ff;--primary2:#7568ff;--cyan:#3be0dc;--green:#41d99a;--amber:#ffca68;--red:#ff6b7d;--shadow:0 22px 70px rgba(0,0,0,.38);--radius:24px;--radius-sm:16px;--max:1240px;color-scheme:dark}
[data-theme="light"]{--bg:#f3f6fc;--bg2:#eaf0fb;--surface:rgba(255,255,255,.82);--surface2:rgba(255,255,255,.96);--line:rgba(31,51,87,.12);--line2:rgba(43,101,216,.25);--text:#101729;--muted:#5c6880;--shadow:0 22px 70px rgba(38,58,98,.13);color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% -10%,rgba(58,126,255,.20),transparent 32%),radial-gradient(circle at 90% 6%,rgba(113,72,255,.18),transparent 30%),linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;min-height:100vh;line-height:1.55;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 78%);pointer-events:none;z-index:-1}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}img,video,canvas{max-width:100%}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;top:8px;left:8px;z-index:9999;transform:translateY(-160%);padding:10px 14px;background:var(--text);color:var(--bg);border-radius:10px}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:200;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;font-weight:850;letter-spacing:-.035em;font-size:21px;white-space:nowrap}.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 8px 25px rgba(83,116,255,.32)}.brand-mark svg{width:23px;height:23px}.main-nav{display:flex;align-items:center;gap:6px;margin-inline:auto}.main-nav a{padding:10px 13px;border-radius:12px;color:var(--muted);font-weight:650;font-size:14px}.main-nav a:hover,.main-nav a[aria-current="page"]{background:rgba(112,143,255,.10);color:var(--text)}.nav-actions{display:flex;align-items:center;gap:8px}.icon-btn,.lang-btn,.menu-btn{height:42px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:13px;padding:0 13px;display:flex;align-items:center;gap:8px}.icon-btn{width:42px;padding:0;justify-content:center}.menu-btn{display:none}.lang-wrap{position:relative}.lang-menu{position:absolute;top:calc(100% + 10px);inset-inline-end:0;width:230px;padding:9px;background:var(--surface2);border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow);display:none}.lang-menu.open{display:grid}.lang-menu a{display:flex;justify-content:space-between;padding:10px 12px;border-radius:11px;color:var(--muted)}.lang-menu a:hover,.lang-menu a.active{background:rgba(91,134,255,.12);color:var(--text)}.primary-btn,.secondary-btn,.ghost-btn,.danger-btn{border:0;border-radius:14px;min-height:46px;padding:0 18px;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:9px;transition:.18s ease}.primary-btn{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 30px rgba(79,105,255,.26)}.primary-btn:hover{transform:translateY(-1px);filter:brightness(1.06)}.secondary-btn{background:var(--surface2);color:var(--text);border:1px solid var(--line)}.ghost-btn{background:transparent;color:var(--muted);border:1px solid var(--line)}.danger-btn{background:rgba(255,107,125,.12);color:var(--red);border:1px solid rgba(255,107,125,.25)}button:disabled{opacity:.48;cursor:not-allowed;transform:none!important}.hero{padding:86px 0 58px;position:relative}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);align-items:center;gap:60px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line2);background:rgba(77,118,255,.09);padding:8px 12px;border-radius:999px;color:#a9c9ff;font-size:13px;font-weight:750}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 16px var(--green)}h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(48px,6vw,78px);line-height:.99;letter-spacing:-.065em;margin:22px 0 24px;max-width:780px}.gradient-text{background:linear-gradient(100deg,#fff 0%,#a9d5ff 46%,#ad9cff 88%);-webkit-background-clip:text;background-clip:text;color:transparent}[data-theme="light"] .gradient-text{background:linear-gradient(100deg,#11182d,#2469c4 55%,#6846cf);-webkit-background-clip:text;background-clip:text}.hero-copy{font-size:18px;color:var(--muted);max-width:660px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 18px}.micro-note{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px}.micro-note svg{color:var(--green)}.hero-visual{position:relative;min-height:480px}.hub-orbit{position:absolute;inset:20px;display:grid;place-items:center}.orbit-ring{position:absolute;width:390px;height:390px;border:1px solid rgba(102,142,255,.19);border-radius:50%;animation:spin 36s linear infinite}.orbit-ring:after{content:"";position:absolute;inset:54px;border:1px dashed rgba(102,142,255,.2);border-radius:50%}.hub-core{width:190px;height:190px;border-radius:48px;background:linear-gradient(145deg,rgba(80,143,255,.23),rgba(108,73,255,.16)),var(--surface2);border:1px solid var(--line2);display:grid;place-items:center;box-shadow:0 0 80px rgba(67,115,255,.20),var(--shadow);position:relative;z-index:2}.hub-core .brand-mark{width:72px;height:72px;border-radius:24px}.hub-core .brand-mark svg{width:44px;height:44px}.orbit-item{position:absolute;width:116px;height:88px;background:var(--surface2);border:1px solid var(--line);border-radius:20px;display:grid;place-items:center;text-align:center;color:var(--muted);font-size:12px;font-weight:700;box-shadow:0 18px 38px rgba(0,0,0,.22);z-index:3}.orbit-item svg{width:28px;height:28px;color:var(--primary)}.orbit-item:nth-of-type(1){transform:translate(0,-202px)}.orbit-item:nth-of-type(2){transform:translate(175px,-103px)}.orbit-item:nth-of-type(3){transform:translate(175px,103px)}.orbit-item:nth-of-type(4){transform:translate(0,202px)}.orbit-item:nth-of-type(5){transform:translate(-175px,103px)}.orbit-item:nth-of-type(6){transform:translate(-175px,-103px)}@keyframes spin{to{transform:rotate(360deg)}}.section{padding:72px 0}.section-head{display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:30px}.section-head h2{font-size:clamp(32px,4vw,48px);line-height:1.05;letter-spacing:-.045em;margin-bottom:10px}.section-head p{color:var(--muted);max-width:650px;margin:0}.test-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.test-card{position:relative;overflow:hidden;background:linear-gradient(150deg,rgba(255,255,255,.055),transparent 65%),var(--surface);border:1px solid var(--line);border-radius:24px;padding:24px;min-height:265px;display:flex;flex-direction:column;box-shadow:0 15px 40px rgba(0,0,0,.12);transition:.22s ease}.test-card:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:var(--accent,var(--primary));filter:blur(90px);opacity:.10;right:-80px;top:-70px}.test-card:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:var(--shadow)}.tool-icon{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;background:color-mix(in srgb,var(--accent,var(--primary)) 15%,transparent);color:var(--accent,var(--primary));border:1px solid color-mix(in srgb,var(--accent,var(--primary)) 35%,transparent);margin-bottom:28px}.tool-icon svg{width:29px;height:29px}.test-card h3{font-size:23px;letter-spacing:-.03em;margin-bottom:8px}.test-card p{color:var(--muted);font-size:14px;flex:1}.card-link{display:flex;align-items:center;justify-content:space-between;font-weight:760;margin-top:18px}.card-link span:last-child{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:rgba(255,255,255,.06)}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.info-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:25px}.info-card .num{color:var(--primary);font-size:13px;font-weight:850;letter-spacing:.08em}.info-card h3{font-size:20px;margin:12px 0 8px}.info-card p{color:var(--muted);font-size:14px;margin:0}.feature-band{background:linear-gradient(120deg,rgba(58,124,255,.12),rgba(115,68,255,.11)),var(--surface);border:1px solid var(--line);border-radius:30px;padding:38px}.feature-band>div:first-child{max-width:750px}.feature-band h2{font-size:38px;letter-spacing:-.04em;margin-bottom:12px}.feature-band>div>p{color:var(--muted)}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}.feature-mini{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:17px;padding:18px}.feature-mini strong{display:block;margin-bottom:5px}.feature-mini span{color:var(--muted);font-size:13px}.faq-list{display:grid;gap:12px;max-width:900px}.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden}.faq-q{width:100%;padding:19px 21px;border:0;background:transparent;color:var(--text);display:flex;justify-content:space-between;text-align:start;font-weight:750}.faq-a{display:none;padding:0 21px 20px;color:var(--muted)}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q svg{transform:rotate(180deg)}.site-footer{border-top:1px solid var(--line);padding:50px 0 28px;margin-top:58px;background:rgba(0,0,0,.08)}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}.footer-brand p{color:var(--muted);max-width:330px;font-size:14px;margin-top:14px}.footer-col strong{display:block;margin-bottom:14px}.footer-col a{display:block;color:var(--muted);font-size:14px;padding:5px 0}.footer-col a:hover{color:var(--text)}.footer-bottom{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:20px}.tool-hero{padding:56px 0 26px}.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:20px}.tool-hero h1{font-size:clamp(38px,5vw,60px);line-height:1.03;letter-spacing:-.055em;margin-bottom:16px;max-width:900px}.tool-hero p{color:var(--muted);font-size:17px;max-width:800px}.tool-shell{background:linear-gradient(150deg,rgba(255,255,255,.04),transparent 45%),var(--surface);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden}.tool-topbar{min-height:62px;border-bottom:1px solid var(--line);padding:12px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px}.status-pill{display:inline-flex;align-items:center;gap:9px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.04);color:var(--muted);font-size:13px;font-weight:700}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 14px currentColor}.status-pill.live .status-dot{background:var(--green)}.status-pill.error .status-dot{background:var(--red)}.tool-body{padding:20px}.panel-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.panel{background:rgba(6,10,20,.24);border:1px solid var(--line);border-radius:20px;padding:19px;min-width:0}[data-theme="light"] .panel{background:rgba(255,255,255,.36)}.panel h2,.panel h3{font-size:17px;letter-spacing:-.02em;margin-bottom:15px}.span-4{grid-column:span 4}.span-5{grid-column:span 5}.span-6{grid-column:span 6}.span-7{grid-column:span 7}.span-8{grid-column:span 8}.span-12{grid-column:1/-1}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.metric{min-width:0;padding:13px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025)}.metric-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.metric-value{font-size:23px;font-weight:850;letter-spacing:-.04em;margin-top:3px;white-space:normal;overflow-wrap:anywhere;line-height:1.15}.control-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.control-row>*{min-width:0}.field{display:grid;gap:7px;min-width:180px}.field label{font-size:12px;color:var(--muted);font-weight:700}.field select,.field input[type="number"],.field input[type="range"]{width:100%}.select,input[type="number"]{height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface2);color:var(--text);padding:0 12px}.range{accent-color:var(--primary)}.notice{border:1px solid rgba(255,202,104,.22);background:rgba(255,202,104,.07);color:var(--muted);border-radius:15px;padding:13px 15px;font-size:13px}.notice strong{color:var(--text)}.notice.error{border-color:rgba(255,107,125,.25);background:rgba(255,107,125,.08)}.notice.success{border-color:rgba(65,217,154,.25);background:rgba(65,217,154,.07)}.instructions-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}.prose-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px}.prose-card h2{font-size:20px}.prose-card p,.prose-card li{color:var(--muted);font-size:14px}.prose-card ol,.prose-card ul{padding-inline-start:20px}.page-content{padding:70px 0;max-width:850px}.page-content h1{font-size:48px;letter-spacing:-.05em}.page-content p{font-size:17px;color:var(--muted)}
/* Mouse */.mouse-zone{height:400px;border-radius:20px;border:1px dashed rgba(115,157,255,.45);background:radial-gradient(circle at var(--mx,50%) var(--my,50%),rgba(75,135,255,.15),transparent 22%),rgba(4,9,19,.28);position:relative;overflow:hidden;display:grid;place-items:center;touch-action:none;user-select:none}.mouse-zone:focus{outline:2px solid var(--primary);outline-offset:3px}.mouse-center{text-align:center;pointer-events:none}.mouse-center svg{width:64px;height:64px;color:var(--primary);margin-bottom:10px}.mouse-center strong{display:block;font-size:19px}.mouse-center span{color:var(--muted);font-size:13px}.pointer-dot{width:18px;height:18px;border-radius:50%;border:2px solid white;background:var(--primary);box-shadow:0 0 25px var(--primary);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);pointer-events:none}.mouse-buttons{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.mouse-key{min-height:84px;border:1px solid var(--line);background:rgba(255,255,255,.025);border-radius:14px;color:var(--muted);display:grid;place-items:center;text-align:center;font-size:12px}.mouse-key.active{background:rgba(65,217,154,.13);border-color:rgba(65,217,154,.5);color:var(--green);box-shadow:inset 0 0 25px rgba(65,217,154,.08)}.wheel-viz{height:130px;display:grid;place-items:center}.wheel-circle{width:74px;height:112px;border:2px solid var(--line2);border-radius:40px;position:relative}.wheel-circle:after{content:"";position:absolute;top:15px;left:50%;width:10px;height:26px;border-radius:8px;background:var(--primary);transform:translateX(-50%)}.wheel-circle.up:after{animation:wheelUp .35s}.wheel-circle.down:after{animation:wheelDown .35s}@keyframes wheelUp{to{transform:translate(-50%,-8px)}}@keyframes wheelDown{to{transform:translate(-50%,8px)}}.cps-target{height:220px;border-radius:18px;border:1px solid var(--line);display:grid;place-items:center;background:radial-gradient(circle,rgba(92,125,255,.14),transparent 55%)}.cps-button{width:124px;height:124px;border-radius:50%;border:1px solid rgba(108,142,255,.65);background:linear-gradient(145deg,rgba(79,138,255,.26),rgba(100,68,255,.22));color:#fff;font-weight:900;letter-spacing:.08em;box-shadow:0 0 40px rgba(79,119,255,.18)}.cps-button.active:active{transform:scale(.96)}
/* Gamepad */.gamepad-wait{padding:50px 20px;text-align:center}.gamepad-wait svg{width:76px;height:76px;color:var(--primary);margin-bottom:16px}.gamepad-live[hidden],.gamepad-wait[hidden]{display:none}.button-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.gp-btn{height:48px;border:1px solid var(--line);border-radius:12px;display:grid;place-items:center;color:var(--muted);font-weight:750;font-size:13px}.gp-btn.active{background:rgba(65,217,154,.14);border-color:rgba(65,217,154,.48);color:var(--green)}.stick-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.stick-card{border:1px solid var(--line);border-radius:16px;padding:14px}.stick-plot{width:min(180px,100%);aspect-ratio:1;border:1px solid var(--line2);border-radius:50%;margin:10px auto;position:relative;background:repeating-radial-gradient(circle,transparent 0 24%,var(--line) 25% 25.7%,transparent 26% 49%),linear-gradient(90deg,transparent 49.6%,var(--line) 50%,transparent 50.4%),linear-gradient(transparent 49.6%,var(--line) 50%,transparent 50.4%)}.stick-dot{width:18px;height:18px;border-radius:50%;background:var(--primary);box-shadow:0 0 20px var(--primary);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.trigger-bar{height:12px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden}.trigger-fill{height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--primary2));border-radius:inherit}.axis-list{display:grid;gap:7px;max-height:230px;overflow:auto}.axis-row{display:flex;justify-content:space-between;padding:8px 10px;border:1px solid var(--line);border-radius:10px;font-variant-numeric:tabular-nums}.drift-canvas{width:100%;height:170px;border:1px solid var(--line);border-radius:14px;background:rgba(0,0,0,.12)}
/* Screen */.screen-launch-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.screen-mode-btn{min-height:92px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.025);color:var(--text);padding:12px}.screen-mode-btn.active,.screen-mode-btn:hover{border-color:var(--line2);background:rgba(78,126,255,.10)}.screen-overlay{position:fixed;inset:0;z-index:1000;background:#000;display:none;overflow:hidden}.screen-overlay.open{display:block}.screen-pattern{position:absolute;inset:0;background:#fff}.screen-toolbar{position:absolute;top:14px;left:50%;transform:translateX(-50%);z-index:2;display:flex;align-items:center;gap:8px;padding:8px;background:rgba(10,13,22,.86);color:white;border:1px solid rgba(255,255,255,.18);border-radius:15px;backdrop-filter:blur(12px);transition:opacity .2s}.screen-toolbar button,.screen-toolbar select{height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.09);color:white;padding:0 12px}.motion-object{position:absolute;width:80px;height:80px;border-radius:18px;background:#fff;box-shadow:0 0 3px rgba(255,255,255,.8);top:50%;transform:translateY(-50%)}.contrast-grid{display:grid;grid-template-columns:repeat(16,1fr);height:100%}.uniform-grid{width:100%;height:100%;background-size:10% 10%;background-image:linear-gradient(to right,rgba(0,0,0,.15) 1px,transparent 1px),linear-gradient(to bottom,rgba(0,0,0,.15) 1px,transparent 1px)}.refresh-meter{text-align:center;padding:25px}.refresh-number{font-size:64px;font-weight:900;letter-spacing:-.06em;color:var(--primary)}
/* Microphone */.level-wrap{display:grid;place-items:center;padding:20px}.level-ring{width:210px;height:210px;border-radius:50%;display:grid;place-items:center;position:relative;background:conic-gradient(var(--green) calc(var(--level,0)*1%),rgba(255,255,255,.06) 0)}.level-ring:before{content:"";position:absolute;inset:13px;border-radius:50%;background:var(--surface2)}.level-ring strong{position:relative;font-size:45px;letter-spacing:-.05em}.level-ring span{position:relative;color:var(--muted);font-size:12px}.wave-canvas{width:100%;height:230px;border-radius:16px;border:1px solid var(--line);background:rgba(0,0,0,.12)}.recording-card audio{width:100%;margin-top:12px}.signal-bar{height:14px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden}.signal-fill{height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--amber),var(--red));transition:width .06s}
/* Camera */.video-stage{position:relative;aspect-ratio:16/9;background:#03050a;border-radius:18px;overflow:hidden;border:1px solid var(--line);display:grid;place-items:center}.video-stage video{width:100%;height:100%;object-fit:contain}.video-stage video.mirrored{transform:scaleX(-1)}.video-placeholder{text-align:center;color:var(--muted);position:absolute}.video-placeholder svg{width:64px;height:64px;margin-bottom:10px}.video-live .video-placeholder{display:none}.snapshot-wrap img{border-radius:14px;border:1px solid var(--line);display:none}.snapshot-wrap.has-image img{display:block}
/* Speaker */.speaker-console{text-align:center;padding:28px}.speaker-visual{width:240px;height:240px;margin:0 auto 24px;border-radius:50%;border:1px solid var(--line2);display:grid;place-items:center;position:relative;background:radial-gradient(circle,rgba(82,132,255,.18),transparent 62%)}.speaker-visual:before,.speaker-visual:after{content:"";position:absolute;border:1px solid rgba(92,139,255,.20);border-radius:50%;inset:26px}.speaker-visual:after{inset:55px}.speaker-visual.playing:before{animation:pulse 1s infinite}.speaker-visual.playing:after{animation:pulse 1s .2s infinite}@keyframes pulse{50%{transform:scale(1.18);opacity:.25}}.speaker-visual svg{width:72px;height:72px;color:var(--primary)}.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.frequency-presets{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.freq-btn{height:46px;border:1px solid var(--line);background:rgba(255,255,255,.025);color:var(--text);border-radius:12px}.freq-btn:hover{border-color:var(--line2)}
/* responsive */
@media(max-width:1050px){.hero-grid{grid-template-columns:1fr}.hero-copy-area{text-align:center}.hero-copy,.hero h1{margin-inline:auto}.hero-actions,.micro-note{justify-content:center}.hero-visual{min-height:430px}.test-grid{grid-template-columns:repeat(2,1fr)}.span-4,.span-5,.span-7,.span-8{grid-column:span 6}.screen-launch-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.container{width:min(100% - 28px,var(--max))}.main-nav{display:none;position:absolute;top:76px;left:14px;right:14px;padding:12px;background:var(--surface2);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.main-nav.open{display:grid}.menu-btn{display:flex}.nav-cta{display:none}.hero{padding-top:62px}.hero h1{font-size:52px}.three-grid,.feature-list,.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.panel-grid{display:block}.panel{margin-bottom:14px}.instructions-grid{grid-template-columns:1fr}.tool-body{padding:14px}.mouse-zone{height:340px}.screen-launch-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.nav-wrap{height:68px}.main-nav{top:68px}.brand{font-size:18px}.brand-mark{width:35px;height:35px}.lang-btn span:not(.lang-short){display:none}.hero{padding:48px 0 24px}.hero h1{font-size:42px}.hero-copy{font-size:16px}.hero-actions>*{width:100%}.hero-visual{min-height:340px;transform:scale(.78);margin:-38px -60px}.orbit-ring{width:350px;height:350px}.hub-core{width:155px;height:155px}.orbit-item{width:100px;height:76px}.orbit-item:nth-of-type(1){transform:translate(0,-178px)}.orbit-item:nth-of-type(2){transform:translate(154px,-89px)}.orbit-item:nth-of-type(3){transform:translate(154px,89px)}.orbit-item:nth-of-type(4){transform:translate(0,178px)}.orbit-item:nth-of-type(5){transform:translate(-154px,89px)}.orbit-item:nth-of-type(6){transform:translate(-154px,-89px)}.section{padding:48px 0}.section-head h2{font-size:34px}.test-grid,.three-grid,.feature-list,.footer-grid{grid-template-columns:1fr}.test-card{min-height:230px}.feature-band{padding:24px}.feature-band h2{font-size:30px}.footer-bottom{display:block}.footer-bottom>*+*{margin-top:8px}.tool-hero{padding-top:38px}.tool-hero h1{font-size:38px}.tool-topbar{align-items:flex-start;flex-direction:column}.tool-topbar .control-row{width:100%}.tool-topbar .control-row>*{flex:1}.mouse-zone{height:310px}.mouse-buttons{grid-template-columns:repeat(3,1fr)}.stick-grid{grid-template-columns:1fr}.screen-launch-grid{grid-template-columns:1fr 1fr}.screen-toolbar{left:8px;right:8px;transform:none;overflow-x:auto;justify-content:flex-start}.channel-grid,.frequency-presets{grid-template-columns:1fr}.speaker-visual{width:190px;height:190px}.level-ring{width:180px;height:180px}.page-content h1{font-size:38px}}
[dir="rtl"] .hero-copy-area,[dir="rtl"] .section-head,[dir="rtl"] .tool-hero,[dir="rtl"] .prose-card,[dir="rtl"] .page-content{text-align:right}[dir="rtl"] .brand-mark,[dir="rtl"] .tool-icon{transform:scaleX(-1)}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}

/* QA mobile containment fixes */
.hero{overflow:hidden}
@media(max-width:600px){.nav-wrap{gap:6px}.brand{margin-inline-end:auto}.nav-actions{gap:5px}.nav-actions>.icon-btn{display:none}.hero-grid,.hero-visual,.hub-orbit,.test-card,.panel,.tool-shell{min-width:0;max-width:100%}.hero-visual{transform:none;margin:0;min-height:340px}.hub-orbit{inset:0;transform:scale(.72);transform-origin:center}.test-card{overflow:hidden}.metric-value{font-size:clamp(18px,5.6vw,23px)}}


/* v3 refinements */
.brand-mark{border-radius:14px}
.brand-mark svg{width:22px;height:22px}
.tool-icon{width:54px;height:54px;margin-bottom:22px}
.tool-icon svg{width:27px;height:27px}
.hero-copy{max-width:690px}
.test-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.section-head h2{max-width:760px}
.tool-hero h1{font-size:clamp(34px,4.2vw,52px);max-width:720px}
.page-content{padding:62px 0 72px;max-width:900px}
.page-content h1{font-size:clamp(34px,4vw,50px);line-height:1.05;margin-bottom:22px;max-width:720px}
.page-content h2{font-size:24px;letter-spacing:-.03em;margin:26px 0 12px}
.page-content p{font-size:16px;line-height:1.78;color:var(--muted);max-width:860px}
.page-content .primary-btn{margin-top:14px}
.footer-bottom{justify-content:flex-start}
.hero-visual{min-height:520px}
.hub-orbit{inset:0}
.hub-core{width:174px;height:174px;border-radius:42px;box-shadow:0 0 80px rgba(67,115,255,.20),0 30px 90px rgba(0,0,0,.28)}
.hub-core .brand-mark{width:78px;height:78px;border-radius:24px}
.hub-core .brand-mark svg{width:42px;height:42px}
.orbit-ring{width:430px;height:430px;opacity:.8;animation:spin 40s linear infinite}
.orbit-ring:before{content:"";position:absolute;inset:24px;border:1px solid rgba(102,142,255,.12);border-radius:50%}
.orbit-ring:after{inset:60px}
.orbit-item{left:50%;top:50%;width:118px;height:86px;padding:10px 8px;gap:6px;place-items:center;display:grid;backdrop-filter:blur(10px);animation:orbit 28s linear infinite;transform-origin:center center}
.orbit-item span{display:block;line-height:1.25}
.orbit-item svg{width:27px;height:27px}
.orbit-item:nth-of-type(1),.orbit-item:nth-of-type(2),.orbit-item:nth-of-type(3),.orbit-item:nth-of-type(4),.orbit-item:nth-of-type(5),.orbit-item:nth-of-type(6),.orbit-item:nth-of-type(7){transform:none}
@keyframes orbit{from{transform:rotate(var(--angle)) translateY(calc(var(--radius)*-1)) rotate(calc(var(--angle)*-1));}to{transform:rotate(calc(var(--angle) + 360deg)) translateY(calc(var(--radius)*-1)) rotate(calc((var(--angle) + 360deg)*-1));}}
.orbit-item[data-speed="slow"]{animation-duration:34s}
.orbit-item[data-speed="fast"]{animation-duration:22s}
.keyboard-layout{display:grid;grid-template-columns:repeat(15,minmax(0,1fr));gap:8px}
.keycap{min-height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.035);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--muted);padding:4px 6px;transition:.12s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.keycap.active{background:linear-gradient(135deg,rgba(85,167,255,.34),rgba(125,108,255,.28));color:#fff;border-color:rgba(122,147,255,.6);box-shadow:0 0 0 1px rgba(129,150,255,.15) inset,0 10px 24px rgba(71,107,255,.2)}
.keycap.w2{grid-column:span 2}.keycap.w3{grid-column:span 3}.keycap.w4{grid-column:span 4}.keycap.w5{grid-column:span 5}
.key-history{display:flex;flex-wrap:wrap;gap:10px}
.key-chip{padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.045);border:1px solid var(--line);font-size:12px;color:var(--text)}
.inline-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
@media(max-width:900px){.inline-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.keyboard-layout{grid-template-columns:repeat(10,minmax(0,1fr))}.keycap.w5{grid-column:span 4}}
@media(max-width:600px){.hero-visual{min-height:380px}.hub-orbit{transform:scale(.75)}.orbit-ring{width:360px;height:360px}.hub-core{width:150px;height:150px}.orbit-item{width:98px;height:72px;font-size:11px}.page-content h1,.tool-hero h1{font-size:36px}.keyboard-layout{grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}.keycap{min-height:38px;font-size:11px}}


/* v4 premium motion + polish */
body{background-attachment:fixed;position:relative}
body:after{content:"";position:fixed;inset:-20%;background:radial-gradient(circle at 22% 18%,rgba(89,165,255,.14),transparent 24%),radial-gradient(circle at 80% 12%,rgba(117,104,255,.12),transparent 22%),radial-gradient(circle at 64% 72%,rgba(59,224,220,.10),transparent 20%);filter:blur(18px);pointer-events:none;z-index:-2;animation:ambientFloat 24s ease-in-out infinite alternate}
@keyframes ambientFloat{0%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(2%,-2%,0) scale(1.03)}100%{transform:translate3d(-2%,2%,0) scale(1.06)}}
.site-header{transition:background .25s ease,border-color .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{background:color-mix(in srgb,var(--bg) 88%,transparent);box-shadow:0 14px 40px rgba(0,0,0,.22)}
.brand-mark,.tool-icon,.primary-btn,.secondary-btn,.icon-btn,.lang-btn,.menu-btn,.test-card,.info-card,.feature-mini,.prose-card,.panel,.tool-shell,.faq-item{transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background-color .28s ease,opacity .28s ease}
.brand-mark{position:relative;overflow:hidden}
.brand-mark:after,.primary-btn:after,.secondary-btn:after{content:"";position:absolute;inset:-120% auto -120% -30%;width:46%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);transform:rotate(18deg) translateX(-240%);transition:transform .7s ease;pointer-events:none}
.brand:hover .brand-mark:after,.primary-btn:hover:after,.secondary-btn:hover:after{transform:rotate(18deg) translateX(420%)}
.primary-btn,.secondary-btn{position:relative;overflow:hidden}
.primary-btn:hover,.secondary-btn:hover,.icon-btn:hover,.lang-btn:hover,.menu-btn:hover{transform:translateY(-2px)}
.icon-btn:hover,.lang-btn:hover,.menu-btn:hover{border-color:var(--line2);box-shadow:0 12px 30px rgba(0,0,0,.18)}
.hero-copy-area,.hero-visual,.tool-hero,.tool-shell,.page-content>*{opacity:1;transform:none}.motion-ready body:not(.is-loaded) .hero-copy-area,.motion-ready body:not(.is-loaded) .hero-visual,.motion-ready body:not(.is-loaded) .tool-hero,.motion-ready body:not(.is-loaded) .tool-shell,.motion-ready body:not(.is-loaded) .page-content>*{opacity:0;transform:translateY(18px)}
body.is-loaded .hero-copy-area,body.is-loaded .hero-visual,body.is-loaded .tool-hero,body.is-loaded .tool-shell,body.is-loaded .page-content>*{opacity:1;transform:none;transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
body.is-loaded .hero-visual{transition-delay:.12s}body.is-loaded .tool-shell{transition-delay:.1s}
.motion-ready .reveal-on-scroll{opacity:0;transform:translateY(24px) scale(.985)}
.motion-ready .reveal-on-scroll.in-view{opacity:1;transform:none;transition:opacity .65s ease,transform .65s cubic-bezier(.2,.75,.2,1);transition-delay:var(--reveal-delay,0ms)}
.main-nav a{position:relative}
.main-nav a:after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary2));transform:scaleX(0);transform-origin:left;transition:transform .24s ease;opacity:.85}
.main-nav a:hover:after,.main-nav a[aria-current="page"]:after{transform:scaleX(1)}
.hero{overflow:hidden}
.hero:after{content:"";position:absolute;right:6%;top:8%;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(117,104,255,.16),transparent 64%);filter:blur(10px);pointer-events:none;animation:orbitalPulse 11s ease-in-out infinite}
@keyframes orbitalPulse{0%,100%{transform:scale(.95);opacity:.6}50%{transform:scale(1.04);opacity:1}}
.hub-core{overflow:visible}
.hub-core:before,.hub-core:after{content:"";position:absolute;border-radius:50%;inset:-18px;border:1px solid rgba(111,149,255,.20);animation:corePulse 5.4s ease-in-out infinite}
.hub-core:after{inset:-42px;border-color:rgba(111,149,255,.12);animation-delay:1.1s}
@keyframes corePulse{0%,100%{transform:scale(.96);opacity:.5}50%{transform:scale(1.03);opacity:1}}
.orbit-ring{box-shadow:0 0 80px rgba(86,121,255,.08) inset}
.orbit-item{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.03)),var(--surface2)}
.orbit-item:hover{border-color:var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.26),0 0 0 1px rgba(115,135,255,.08) inset}
.test-card,.info-card,.feature-mini,.prose-card,.panel,.tool-shell,.faq-item{backdrop-filter:blur(14px)}
.test-card:before,.info-card:before,.feature-mini:before,.prose-card:before,.panel:before,.tool-shell:before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(160deg,rgba(255,255,255,.11),rgba(255,255,255,0) 28%,rgba(89,165,255,.14) 72%,rgba(117,104,255,.14));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.72}
.test-card,.info-card,.feature-mini,.prose-card,.panel,.tool-shell{position:relative}
.test-card:hover,.info-card:hover,.feature-mini:hover,.prose-card:hover,.panel:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.18)}
.test-card:hover .tool-icon{transform:translateY(-2px) scale(1.03)}
.tool-icon{box-shadow:0 12px 26px rgba(0,0,0,.14)}
.card-link span:last-child{transition:transform .24s ease,background-color .24s ease}
.test-card:hover .card-link span:last-child{transform:translateX(2px);background:rgba(255,255,255,.10)}
.feature-band{position:relative;overflow:hidden}
.feature-band:before{content:"";position:absolute;inset:auto -10% -55% auto;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(90,163,255,.20),transparent 62%);pointer-events:none}
.status-pill{box-shadow:inset 0 0 0 1px rgba(255,255,255,.02),0 10px 20px rgba(0,0,0,.08)}
.faq-item{overflow:hidden}
.faq-q svg{transition:transform .28s ease}
.faq-a{display:block;max-height:0;overflow:hidden;padding:0 21px;opacity:0;transition:max-height .36s ease,opacity .28s ease,padding .28s ease}
.faq-item.open .faq-a{max-height:260px;padding:0 21px 20px;opacity:1}
.page-content>*{max-width:860px}
.footer-grid{align-items:start}
.footer-col a{transition:color .22s ease,transform .22s ease}.footer-col a:hover{transform:translateX(2px)}
.tool-shell{overflow:visible}.tool-topbar{border-bottom-color:rgba(145,167,210,.14)}
@media(max-width:820px){body.is-loaded .hero-copy-area,body.is-loaded .hero-visual{transition-duration:.55s}.feature-band:before{width:240px;height:240px;right:-16%;bottom:-30%}}
@media(max-width:600px){body:after{animation-duration:18s}.hero:after{width:260px;height:260px;right:-6%;top:10%}.test-card:hover,.info-card:hover,.feature-mini:hover,.prose-card:hover,.panel:hover{transform:none}.faq-item.open .faq-a{max-height:420px}}
@media(prefers-reduced-motion:reduce){body:after,.hero:after,.hub-core:before,.hub-core:after{animation:none!important}.hero-copy-area,.hero-visual,.tool-hero,.tool-shell,.page-content>*,.js .reveal-on-scroll{opacity:1!important;transform:none!important}}


/* v5 ultra-premium visual system */
:root{--header-progress:0%;--ease-premium:cubic-bezier(.2,.75,.2,1)}
.site-header:after{content:"";position:absolute;left:0;bottom:-1px;height:2px;width:var(--header-progress);background:linear-gradient(90deg,var(--primary),var(--cyan),var(--primary2));box-shadow:0 0 18px rgba(89,165,255,.65);transition:width .08s linear}
.nav-wrap{position:relative}
.brand{isolation:isolate}.brand-mark{background:linear-gradient(145deg,#65b5ff 0%,#617dff 46%,#815eff 100%);border:1px solid rgba(255,255,255,.22);box-shadow:0 14px 34px rgba(76,104,255,.34),inset 0 1px 0 rgba(255,255,255,.25)}
.brand-mark:before{content:"";position:absolute;inset:1px;border-radius:inherit;background:linear-gradient(145deg,rgba(255,255,255,.22),transparent 45%);pointer-events:none}
.hero-grid{min-height:590px}
.hero-copy-area{position:relative;z-index:3}
.hero h1{font-size:clamp(52px,6.2vw,82px);line-height:.96;max-width:820px;text-wrap:balance}
.hero-copy{font-size:19px;line-height:1.72}
.eyebrow{box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 14px 38px rgba(35,66,145,.13)}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-metric{min-width:128px;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:8px;padding:11px 14px;border:1px solid var(--line);border-radius:15px;background:linear-gradient(145deg,rgba(255,255,255,.055),rgba(255,255,255,.02));box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.hero-metric strong{font-size:22px;letter-spacing:-.05em;background:linear-gradient(135deg,#fff,#9dccff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-metric span{font-size:11px;line-height:1.25;color:var(--muted);font-weight:720;text-transform:uppercase;letter-spacing:.055em}
.hero-visual{perspective:1000px}
.hub-orbit{transform-style:preserve-3d;transition:transform .5s var(--ease-premium)}
.hub-core{width:188px;height:188px;border-radius:46px;background:linear-gradient(145deg,rgba(69,125,255,.24),rgba(104,65,255,.16)),rgba(12,19,36,.93);box-shadow:0 40px 100px rgba(0,0,0,.36),0 0 100px rgba(67,115,255,.23),inset 0 1px 0 rgba(255,255,255,.09)}
.hub-core .brand-mark{width:72px;height:72px;border-radius:23px}
.hub-core-label{position:absolute;top:calc(50% + 48px);left:50%;transform:translateX(-50%);display:grid;text-align:center;gap:1px;white-space:nowrap}
.hub-core-label strong{font-size:13px;letter-spacing:-.02em}.hub-core-label span{font-size:8px;letter-spacing:.24em;color:#88bfff;font-weight:800}
.orbit-item{margin:-43px 0 0 -59px;border-color:rgba(139,166,222,.18);box-shadow:0 22px 56px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.055)}
.orbit-item:before{content:"";position:absolute;inset:-1px;border-radius:inherit;background:linear-gradient(145deg,rgba(255,255,255,.10),transparent 35%,rgba(89,165,255,.10));pointer-events:none;opacity:.7}
.orbit-item svg{filter:drop-shadow(0 5px 12px rgba(76,139,255,.25))}
.test-grid{gap:20px}
.test-card{min-height:278px;padding:26px;background:radial-gradient(360px circle at var(--mx,70%) var(--my,0%),color-mix(in srgb,var(--accent,var(--primary)) 16%,transparent),transparent 43%),linear-gradient(155deg,rgba(255,255,255,.062),rgba(255,255,255,.018) 56%),var(--surface);--tilt-x:0deg;--tilt-y:0deg;--lift:0px;transform:perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) translateY(var(--lift));transform-style:preserve-3d;will-change:transform}
.test-card:hover{--lift:-7px}
.test-card>*{position:relative;z-index:2;transform:translateZ(12px)}
.test-card .tool-icon{transform:translateZ(24px)}
.test-card h3{font-size:24px}.test-card p{font-size:14.5px;line-height:1.65}
.tool-icon{border-radius:16px;background:linear-gradient(145deg,color-mix(in srgb,var(--accent,var(--primary)) 20%,transparent),rgba(255,255,255,.025));box-shadow:0 16px 35px color-mix(in srgb,var(--accent,var(--primary)) 15%,transparent),inset 0 1px 0 rgba(255,255,255,.07)}
.section-head{margin-bottom:34px}.section-head h2{text-wrap:balance}
.info-card,.feature-mini,.prose-card,.panel{background:linear-gradient(150deg,rgba(255,255,255,.05),rgba(255,255,255,.015)),var(--surface)}
.feature-band{box-shadow:0 30px 80px rgba(0,0,0,.16),inset 0 1px 0 rgba(255,255,255,.06)}
.tool-hero{position:relative;padding:64px 0 30px}.tool-hero:after{content:"";position:absolute;inset:auto 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--line2),transparent);opacity:.55}
.tool-hero .tool-icon{width:52px;height:52px;border-radius:15px;margin-bottom:22px}
.tool-shell{box-shadow:0 35px 95px rgba(0,0,0,.26),0 0 0 1px rgba(255,255,255,.02) inset}
.tool-shell:after{content:"";position:absolute;left:8%;right:8%;top:-1px;height:2px;background:linear-gradient(90deg,transparent,var(--primary),var(--cyan),var(--primary2),transparent);opacity:.72}
.panel{overflow:hidden}.panel:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-110px;top:-110px;background:radial-gradient(circle,rgba(89,165,255,.09),transparent 67%);pointer-events:none}
.keyboard-layout{padding:14px;border:1px solid rgba(139,166,222,.12);border-radius:20px;background:rgba(2,6,14,.18);box-shadow:inset 0 18px 50px rgba(0,0,0,.12)}
.keycap{background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));box-shadow:0 5px 0 rgba(0,0,0,.16),inset 0 1px 0 rgba(255,255,255,.055);transform:translateY(0);transition:transform .11s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease,color .15s ease}
.keycap.active{transform:translateY(3px);box-shadow:0 1px 0 rgba(0,0,0,.12),0 0 28px rgba(81,128,255,.25)}
.page-content{padding-top:72px}.page-content h1{text-wrap:balance}.page-content h2{padding-top:8px}
.lang-menu{transform-origin:top right;animation:menuPop .18s var(--ease-premium)}
@keyframes menuPop{from{opacity:0;transform:translateY(-6px) scale(.97)}to{opacity:1;transform:none}}
.status-dot{animation:statusGlow 2.4s ease-in-out infinite}@keyframes statusGlow{50%{box-shadow:0 0 22px currentColor;transform:scale(1.12)}}
@media(max-width:1050px){.hero-grid{min-height:auto}.hero-metrics{justify-content:center}.hub-orbit{transform:scale(.9)}}
@media(max-width:600px){.hero h1{font-size:44px}.hero-copy{font-size:16px}.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.hero-metric{min-width:0;grid-template-columns:1fr;text-align:center;padding:10px 6px}.hero-metric strong{font-size:19px}.hero-metric span{font-size:8px}.hub-orbit{transform:scale(.69)}.keyboard-layout{padding:9px;border-radius:16px}.test-card{min-height:238px}}
@media(prefers-reduced-motion:reduce){.test-card{transform:none!important}.status-dot{animation:none}}

/* v5 final composition tuning */
.hero-grid{grid-template-columns:minmax(0,1.12fr) minmax(390px,.88fr);gap:46px}
.hero h1{font-size:clamp(46px,5vw,66px);line-height:.98;max-width:760px}
@media(min-width:1100px){.test-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1050px){.hero-grid{grid-template-columns:1fr}.hero h1{max-width:760px}}
@media(max-width:600px){.hero h1{font-size:42px;line-height:.99}}

/* v5 keyboard geometry correction */
.keyboard-layout-wrap{width:100%;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin;scrollbar-color:rgba(100,140,255,.42) transparent}
.keyboard-layout{display:grid!important;grid-template-columns:none!important;gap:8px;min-width:820px}
.keyboard-row{display:flex;gap:8px;align-items:stretch}
.keycap{flex:var(--key-grow,1) 1 0;min-width:38px;grid-column:auto!important}
.keycap.w2,.keycap.w3,.keycap.w4,.keycap.w5{grid-column:auto!important}
@media(max-width:900px){.keyboard-layout{grid-template-columns:none!important;min-width:800px}}
@media(max-width:600px){.keyboard-layout{grid-template-columns:none!important;min-width:760px;gap:6px}.keyboard-row{gap:6px}.keycap{min-width:34px}}
/* v5 keyboard desktop fit */
.keyboard-layout{min-width:710px}
.keycap{min-width:29px}
@media(max-width:900px){.keyboard-layout{min-width:710px}}
@media(max-width:600px){.keyboard-layout{min-width:720px}.keycap{min-width:30px}}


/* v6 controller + keyboard refinement */
.brand{gap:13px}
.brand-wordmark{display:grid;gap:1px;line-height:1}
.brand-name{font-size:20px;font-weight:850;letter-spacing:-.04em}
.brand-tag{font-size:10px;text-transform:uppercase;letter-spacing:.22em;color:var(--muted);font-weight:760}
.footer-brand .brand-tag{font-size:9px;opacity:.95}
.hub-core{display:flex;flex-direction:column;align-items:center;justify-content:center;padding-top:2px}
.hub-core .brand-mark{position:relative;z-index:2;width:78px;height:78px;border-radius:24px;animation:hubFloat 5.6s ease-in-out infinite}
.hub-core-label{position:static;transform:none;margin-top:10px;gap:2px}
.hub-core:before{animation:corePulse 4.8s ease-in-out infinite}
.hub-core:after{animation:corePulse 4.8s ease-in-out 1.1s infinite}
.hub-core .brand-mark:before{background:linear-gradient(145deg,rgba(255,255,255,.35),transparent 44%)}
.hub-core .brand-mark:after{content:"";position:absolute;inset:-10px;border-radius:30px;background:radial-gradient(circle,rgba(112,168,255,.32),transparent 70%);z-index:-1;filter:blur(10px);animation:hubGlow 3.6s ease-in-out infinite}
.hub-core-label strong{font-size:14px;letter-spacing:-.03em}.hub-core-label span{font-size:8px;letter-spacing:.28em}
@keyframes hubFloat{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-5px) scale(1.03)}}
@keyframes hubGlow{0%,100%{opacity:.55;transform:scale(.92)}50%{opacity:1;transform:scale(1.08)}}
.orbit-item{transform-origin:center center}
.orbit-item span{max-width:82px;text-wrap:balance}
.keyboard-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:18px 0 16px}
.segmented{display:inline-flex;gap:6px;padding:6px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.seg-btn{min-width:58px;height:38px;padding:0 12px;border-radius:10px;border:1px solid transparent;background:transparent;color:var(--muted);font-weight:760}
.seg-btn.active{background:linear-gradient(135deg,rgba(89,165,255,.22),rgba(117,104,255,.18));border-color:var(--line2);color:var(--text);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.toggle-chip{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-weight:700;color:var(--text)}
.toggle-chip input{accent-color:var(--primary);width:16px;height:16px}
.keyboard-layout-wrap{--kb-scale:1}
.keyboard-layout-scale{transform:scale(var(--kb-scale));transform-origin:top left;width:calc(100% / var(--kb-scale))}
.small-label{display:block;margin-bottom:8px;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#9eb9ea}
.key-summary{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:10px}
.key-history.compact{min-height:44px;align-items:flex-start}.key-history.compact .key-chip{padding:7px 9px;font-size:11px}
.keycap{position:relative;overflow:hidden}
.keycap-badge{position:absolute;right:5px;bottom:4px;font-size:9px;line-height:1;color:#9bc3ff;opacity:.85;pointer-events:none}
.keycap.used{border-color:rgba(108,145,255,.28)}
.keycap.remembered{background:linear-gradient(135deg,rgba(89,165,255,.17),rgba(117,104,255,.15));border-color:rgba(122,158,255,.4)}
.keycap.pulse{animation:keyPulse .32s ease}
@keyframes keyPulse{0%{transform:translateY(0) scale(1)}50%{transform:translateY(2px) scale(.98)}100%{transform:translateY(0) scale(1)}}
.panel-heading-row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.panel-heading-row h2{margin-bottom:0}
.metric-value.tight{font-size:14px;line-height:1.25;word-break:break-word}
.coverage-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.coverage-item{display:flex;align-items:center;gap:10px;padding:12px 13px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);font-weight:700;font-size:13px}
.coverage-item .cov-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.16);box-shadow:0 0 0 4px rgba(255,255,255,.02)}
.coverage-item.done{border-color:rgba(65,217,154,.28);background:rgba(65,217,154,.08);color:#dff9ee}.coverage-item.done .cov-dot{background:var(--green);box-shadow:0 0 16px rgba(65,217,154,.48)}
.helper-list{margin:0;padding-left:18px;color:var(--muted)}
.helper-list li+li{margin-top:6px}
.history-list{display:flex;flex-wrap:wrap;gap:10px;min-height:40px}
.history-pill{padding:8px 10px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:12px;color:var(--text)}
.notice-compact{font-size:12px;color:var(--muted)}
.panel .helper-card{padding:14px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
@media(max-width:900px){.key-summary{grid-template-columns:1fr}.coverage-grid{grid-template-columns:1fr}.brand-tag{display:none}}
@media(max-width:600px){.keyboard-toolbar{align-items:stretch}.segmented{width:100%;justify-content:space-between}.seg-btn{flex:1;min-width:0}.keyboard-layout-scale{width:max-content}.hub-core .brand-mark{width:72px;height:72px}}


/* v7 Keyboard Test Lab */
.keyboard-page{padding-bottom:78px}
.keyboard-hero{padding-bottom:40px}.keyboard-hero h1{max-width:820px}
.keyboard-lab{position:relative;border:1px solid var(--line);border-radius:30px;background:linear-gradient(155deg,rgba(255,255,255,.055),rgba(255,255,255,.014) 50%),var(--surface);box-shadow:0 38px 110px rgba(0,0,0,.30),inset 0 1px 0 rgba(255,255,255,.055);overflow:hidden}
.keyboard-lab:before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(120deg,rgba(89,165,255,.72),rgba(59,224,220,.18) 30%,transparent 50%,rgba(117,104,255,.60));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.42}
.keyboard-lab:fullscreen{overflow:auto;border-radius:0;padding:24px;background:radial-gradient(circle at 15% 10%,rgba(48,111,255,.20),transparent 35%),radial-gradient(circle at 85% 10%,rgba(119,74,255,.18),transparent 32%),#070a12}
.keyboard-lab-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;border-bottom:1px solid var(--line);background:rgba(8,13,25,.30)}
.keyboard-progress-summary{display:flex;align-items:baseline;gap:8px;color:var(--muted);font-size:13px}.keyboard-progress-summary strong{color:var(--text);font-size:20px;letter-spacing:-.04em}.keyboard-progress-summary small{font-size:11px}
.keyboard-control-deck{display:grid;grid-template-columns:auto auto 1fr;align-items:end;gap:18px;padding:20px 22px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.025),transparent)}
.control-group{display:grid;gap:8px}.control-title{font-size:11px;font-weight:820;letter-spacing:.10em;text-transform:uppercase;color:#9eb9ea}.control-actions{display:flex;justify-content:flex-end;align-items:center;gap:8px;flex-wrap:wrap}.danger-btn.subtle{background:rgba(255,107,125,.08)}
.keyboard-progress-track{height:4px;background:rgba(255,255,255,.035);overflow:hidden}.keyboard-progress-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--primary),var(--cyan),var(--primary2));box-shadow:0 0 24px rgba(78,160,255,.65);transition:width .35s var(--ease-premium)}
.keyboard-stage{position:relative;min-height:430px;padding:34px 20px 28px;overflow:hidden;background:radial-gradient(540px circle at 50% 45%,rgba(54,100,210,.12),transparent 65%),linear-gradient(180deg,rgba(2,5,12,.26),rgba(2,5,12,.08))}
.keyboard-stage:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:32px 32px;mask-image:radial-gradient(circle at center,black,transparent 75%);pointer-events:none}
.keyboard-ambient span{position:absolute;border-radius:50%;filter:blur(30px);opacity:.25;animation:keyboardAmbient 10s ease-in-out infinite}.keyboard-ambient span:nth-child(1){width:260px;height:260px;background:#377dff;left:-80px;top:35px}.keyboard-ambient span:nth-child(2){width:250px;height:250px;background:#6d45ff;right:-70px;top:45px;animation-delay:-3s}.keyboard-ambient span:nth-child(3){width:190px;height:190px;background:#25b9c8;left:42%;bottom:-130px;animation-delay:-6s}@keyframes keyboardAmbient{50%{transform:translateY(-18px) scale(1.08);opacity:.38}}
.keyboard-viewport{position:relative;z-index:2;width:100%;overflow:auto;display:block;transition:height .28s var(--ease-premium);scrollbar-width:thin;scrollbar-color:rgba(100,140,255,.48) transparent;padding:8px}
.keyboard-scale-layer{width:max-content;min-width:max-content;margin-inline:auto;transform:scale(var(--view-scale,1));transform-origin:top left;transition:transform .28s var(--ease-premium)}
.keyboard-device{--unit:47px;--key-h:46px;--key-gap:7px;width:max-content;padding:18px;border:1px solid rgba(145,167,210,.18);border-radius:24px;background:linear-gradient(160deg,rgba(34,47,77,.96),rgba(15,22,39,.98));box-shadow:0 28px 60px rgba(0,0,0,.34),inset 0 1px 0 rgba(255,255,255,.07),inset 0 -12px 30px rgba(0,0,0,.16)}
.keyboard-function-row,.keyboard-row{display:flex;gap:var(--key-gap);align-items:stretch}.keyboard-function-row{margin-bottom:13px}.keyboard-row+.keyboard-row{margin-top:var(--key-gap)}.key-gap{width:16px;flex:0 0 16px}.keyboard-body{display:flex;align-items:flex-start;gap:16px}.alpha-cluster{width:max-content}.nav-cluster{display:grid;gap:24px}.nav-grid{display:grid;grid-template-columns:repeat(3,var(--unit));gap:var(--key-gap)}.arrow-grid{display:grid;grid-template-columns:repeat(3,var(--unit));gap:var(--key-gap);align-self:end}.numpad-grid{display:grid;grid-template-columns:repeat(4,var(--unit));grid-auto-rows:var(--key-h);gap:var(--key-gap)}
.keyboard-device .keycap{position:relative;flex:0 0 calc(var(--unit)*var(--w,1) + (var(--w,1) - 1)*var(--key-gap));width:calc(var(--unit)*var(--w,1) + (var(--w,1) - 1)*var(--key-gap));height:var(--key-h);min-width:0;border:1px solid rgba(149,173,221,.19);border-radius:10px;padding:0 7px;background:linear-gradient(180deg,rgba(45,58,87,.97),rgba(27,37,59,.98));box-shadow:0 5px 0 rgba(4,8,17,.68),0 8px 18px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.075);color:#dce7fb;display:grid;place-items:center;font-size:11px;font-weight:760;overflow:hidden;isolation:isolate;transition:transform .10s ease,box-shadow .14s ease,border-color .16s ease,background .18s ease,color .18s ease}
.keyboard-device .keycap:before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(89,165,255,var(--heat,0)),rgba(117,104,255,calc(var(--heat,0)*.72)));z-index:-1;transition:background .25s ease}.keyboard-device .keycap:hover{border-color:rgba(122,158,255,.42);transform:translateY(-1px)}.keyboard-device .keycap.active{transform:translateY(4px) scale(.985);box-shadow:0 1px 0 rgba(4,8,17,.58),0 0 26px rgba(81,132,255,.36);border-color:rgba(132,178,255,.78);color:#fff;background:linear-gradient(180deg,rgba(75,111,196,.96),rgba(52,66,140,.98))}.keyboard-device .keycap.remembered:not(.active){border-color:rgba(122,158,255,.52);box-shadow:0 5px 0 rgba(4,8,17,.55),0 0 18px rgba(87,114,255,.16)}.keyboard-device .keycap.tested .key-label{text-shadow:0 0 12px rgba(151,202,255,.44)}.key-label{position:relative;z-index:2;white-space:nowrap}.key-count{position:absolute;z-index:3;right:4px;bottom:3px;font-size:8px;color:#9fc8ff;opacity:.88}.key-ripple{position:absolute;z-index:1;width:18px;height:18px;border-radius:50%;background:rgba(255,255,255,.5);animation:keyRipple .52s ease-out forwards;pointer-events:none}@keyframes keyRipple{to{transform:scale(4);opacity:0}}
.keyboard-lab[data-layout="tkl"] .numpad-cluster{display:none}.keyboard-lab[data-layout="60"] .keyboard-function-row,.keyboard-lab[data-layout="60"] .nav-cluster,.keyboard-lab[data-layout="60"] .numpad-cluster{display:none}.keyboard-lab[data-layout="60"] .keyboard-device{padding-top:22px;padding-bottom:22px}
.coverage-strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;padding:18px 22px 22px;border-top:1px solid var(--line);background:rgba(8,13,25,.24)}.coverage-mini{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025);color:var(--muted);font-size:12px}.coverage-mini strong{color:var(--text)}.coverage-mini.complete{border-color:rgba(65,217,154,.32);background:rgba(65,217,154,.08)}.coverage-mini.complete strong{color:#9df0cb}
.completion-banner{position:absolute;z-index:5;left:50%;top:22px;transform:translateX(-50%);width:min(500px,calc(100% - 40px));padding:14px 18px;border-radius:16px;border:1px solid rgba(65,217,154,.36);background:rgba(11,34,32,.92);box-shadow:0 18px 50px rgba(0,0,0,.28),0 0 34px rgba(65,217,154,.14);backdrop-filter:blur(16px)}.completion-banner div{display:grid;gap:3px}.completion-banner strong{color:#bcf8dc}.completion-banner span{color:#9cc9b8;font-size:13px}.keyboard-stage.celebrate{animation:completionPulse .9s ease}@keyframes completionPulse{50%{box-shadow:inset 0 0 90px rgba(65,217,154,.12)}}.completion-spark{position:absolute;z-index:6;left:var(--x);top:18%;width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,var(--cyan),var(--primary2));animation:sparkFall 1.5s var(--delay) ease-in forwards}@keyframes sparkFall{to{transform:translate(var(--drift),280px) rotate(420deg);opacity:0}}
.keyboard-stats-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:12px;margin-top:18px}.metric-card{padding:16px;border:1px solid var(--line);border-radius:17px;background:linear-gradient(150deg,rgba(255,255,255,.045),rgba(255,255,255,.012)),var(--surface);box-shadow:0 14px 34px rgba(0,0,0,.10);display:grid;gap:7px;min-width:0}.metric-card span{font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}.metric-card strong{font-size:20px;letter-spacing:-.035em;overflow:hidden;text-overflow:ellipsis}.compact-value{font-size:13px!important;word-break:break-word}
.keyboard-data-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.keyboard-history-panel{grid-column:1/-1}.keyboard-data-panel,.keyboard-history-panel{min-height:150px}.key-history.large{gap:9px;min-height:42px}.key-history.large .key-chip{padding:9px 11px}.active-chip{border-color:rgba(89,165,255,.42)!important;background:rgba(89,165,255,.10)!important}.keyboard-instructions{margin-top:16px}
@media(max-width:1100px){.keyboard-control-deck{grid-template-columns:1fr 1fr}.control-actions{grid-column:1/-1;justify-content:flex-start}.coverage-strip{grid-template-columns:repeat(3,1fr)}.keyboard-stats-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:760px){.keyboard-lab{border-radius:22px}.keyboard-lab-head{align-items:flex-start}.keyboard-control-deck{grid-template-columns:1fr}.control-actions{grid-column:auto}.keyboard-stage{min-height:360px;padding-inline:8px}.coverage-strip{grid-template-columns:repeat(2,1fr)}.keyboard-stats-grid{grid-template-columns:repeat(2,1fr)}.keyboard-data-grid{grid-template-columns:1fr}.keyboard-history-panel{grid-column:auto}.keyboard-device{--unit:43px;--key-h:43px;padding:14px}.keyboard-progress-summary{display:grid;gap:1px;text-align:right}.control-actions>*{flex:1}.toggle-chip{flex-basis:100%}}
@media(max-width:480px){.keyboard-lab-head{padding:15px}.keyboard-control-deck{padding:16px}.coverage-strip{padding:14px;grid-template-columns:1fr 1fr}.keyboard-device{--unit:40px;--key-h:41px}.keyboard-stage{min-height:320px}.segmented{width:100%}.seg-btn{flex:1}.keyboard-stats-grid{gap:8px}.metric-card{padding:13px}.metric-card strong{font-size:18px}}
@media(prefers-reduced-motion:reduce){.keyboard-ambient span,.completion-spark{animation:none!important}.keyboard-device .keycap,.keyboard-scale-layer,.keyboard-viewport{transition:none!important}}

/* v7 QA fixes */
.coverage-mini[hidden]{display:none!important}.keyboard-viewport[data-fit="true"]{overflow-x:hidden}

/* v7 fit alignment */
.keyboard-scale-layer{margin-inline:0!important}.keyboard-device{direction:ltr}


/* v8 nav + keyboard stability */
.quick-wrap{position:relative}
.quick-btn{height:42px;padding:0 14px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.03)),var(--surface);color:var(--text);border-radius:13px;display:flex;align-items:center;gap:9px;font-weight:780;letter-spacing:-.02em}
.quick-btn svg{width:18px;height:18px;color:#b9d5ff}.quick-btn small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;line-height:1}.quick-btn strong{display:block;font-size:13px;line-height:1.1}
.quick-pill{width:8px;height:8px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 0 16px rgba(103,125,255,.7)}
.quick-btn:hover{border-color:var(--line2);box-shadow:0 12px 30px rgba(0,0,0,.18);transform:translateY(-2px)}
.quick-menu{position:absolute;top:calc(100% + 10px);right:0;width:270px;padding:10px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02)),var(--surface2);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:none;z-index:30}
.quick-menu.open{display:grid;gap:6px;animation:menuPop .18s var(--ease-premium)}
.quick-menu a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:680}
.quick-menu a:hover,.quick-menu a.active{background:rgba(91,134,255,.12);color:var(--text)}
.quick-menu .qm-main{display:flex;align-items:center;gap:10px}.quick-menu .qm-icon{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:rgba(98,130,255,.11);border:1px solid rgba(111,142,255,.18);color:#a6cbff;flex:0 0 auto}.quick-menu .qm-icon svg{width:16px;height:16px}.quick-menu .qm-arrow{opacity:.56}
.keyboard-capture-note{margin-top:12px;padding:12px 14px;border-radius:15px;border:1px solid rgba(101,145,255,.18);background:rgba(84,111,255,.07);color:var(--muted);font-size:13px}
.keyboard-capture-note strong{color:var(--text)}
.keyboard-capture-note code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:#d8e5ff}
.keyboard-stage{outline:none}
.keyboard-stage.is-capture-focus{box-shadow:0 0 0 1px rgba(111,145,255,.18),0 32px 80px rgba(0,0,0,.28)}
.keycap.blocked-key{border-color:rgba(255,202,104,.35);box-shadow:0 0 0 1px rgba(255,202,104,.15) inset}
.keycap.blocked-key .key-label:after{content:"•";margin-left:4px;color:#ffc968;font-size:10px;vertical-align:top}
@media(max-width:980px){.quick-btn .quick-copy{display:none}.quick-btn{padding:0 12px}}
@media(max-width:820px){.quick-wrap{display:none}}