:root{--bg:#090b0a;--surface:#101311;--surface-2:#161a17;--line:#293029;--text:#f3f7f2;--muted:#9ca69e;--lime:#c7ff35;--lime-dark:#172008;--error:#ff8c7a;--max:1160px;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}.skip-link{position:fixed;left:16px;top:-80px;background:var(--lime);color:#0b0d0b;padding:10px 16px;z-index:100;border-radius:8px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(9,11,10,.88);backdrop-filter:blur(18px)}.nav-wrap{max-width:var(--max);margin:auto;height:70px;padding:0 24px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;letter-spacing:-.04em;font-size:20px;display:inline-flex;align-items:center}.brand>span:last-child{color:var(--lime)}.brand-mark{width:26px;height:24px;margin-right:10px;display:flex;align-items:center;justify-content:center;gap:2px}.brand-mark i{display:block;width:3px;border-radius:4px;background:var(--lime)}.brand-mark i:nth-child(1){height:8px}.brand-mark i:nth-child(2){height:18px}.brand-mark i:nth-child(3){height:12px}.brand-mark i:nth-child(4){height:21px}.nav-wrap nav{display:flex;gap:31px;font-size:14px;color:#bdc5bf}.nav-wrap nav a{transition:color .2s}.nav-wrap nav a:hover,.nav-wrap nav a:focus-visible,.nav-wrap nav a[aria-current]{color:var(--text)}.menu-button{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:6px 10px}.hero{max-width:1000px;margin:auto;padding:82px 24px 70px;text-align:center}.hero-copy{max-width:760px;margin:0 auto 40px}.eyebrow{color:var(--lime);text-transform:uppercase;letter-spacing:.15em;font-weight:750;font-size:12px;margin:0 0 14px}.hero .eyebrow span{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 15px var(--lime);margin-right:7px;vertical-align:1px}.hero h1{font-size:clamp(54px,9vw,96px);line-height:.94;letter-spacing:-.065em;margin:0}.lede{font-size:clamp(18px,2.5vw,23px);color:#b7c0b9;margin:25px auto 0;max-width:680px}.tool-shell{text-align:left;border:1px solid #303731;border-radius:var(--radius);background:linear-gradient(145deg,#151916,#0e110f);box-shadow:0 24px 80px rgba(0,0,0,.45),0 0 0 1px rgba(199,255,53,.02);overflow:hidden}.tool-topbar{height:49px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 20px;color:#aeb8b0;font-size:12px}.tool-topbar>div{display:flex;align-items:center;gap:8px}.status-dot,.confidence-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 9px rgba(199,255,53,.8)}.offline-badge{color:var(--lime);border:1px solid rgba(199,255,53,.22);background:rgba(199,255,53,.05);border-radius:99px;padding:3px 9px;text-transform:uppercase;letter-spacing:.09em;font-size:9px;font-weight:800}.drop-zone{min-height:336px;margin:24px;border:1px dashed #475048;border-radius:15px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:.25s;background:radial-gradient(circle at 50% 40%,rgba(199,255,53,.035),transparent 44%)}.drop-zone:hover,.drop-zone:focus-within,.drop-zone.is-dragging{border-color:var(--lime);background:rgba(199,255,53,.055);box-shadow:inset 0 0 40px rgba(199,255,53,.02)}.upload-icon{width:58px;height:58px;border-radius:50%;border:1px solid #3e473f;display:grid;place-items:center;margin-bottom:19px;box-shadow:0 0 0 8px rgba(255,255,255,.02)}.upload-icon span{font-size:25px;color:var(--lime);line-height:1}.drop-zone strong{font-size:22px;letter-spacing:-.02em}.drop-zone>span:not(.upload-icon){color:#939d95;margin-top:2px}.drop-zone small{color:#707a72;margin-top:22px}.trust-row{display:flex;gap:40px;align-items:center;justify-content:center;padding:0 20px 23px;color:#919b93;font-size:12px}.trust-row b{color:var(--lime);margin-right:5px}.analysis-view{min-height:420px}.analyzing{min-height:420px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center}.analyzing strong{font-size:20px;margin-top:22px}.analyzing>span{color:var(--muted);font-size:13px;max-width:70%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.scan-wave{height:70px;display:flex;align-items:center;gap:5px}.scan-wave i{display:block;width:4px;height:20px;background:var(--lime);border-radius:10px;animation:wave .8s ease-in-out infinite alternate}.scan-wave i:nth-child(2),.scan-wave i:nth-child(8){animation-delay:-.2s;height:38px}.scan-wave i:nth-child(3),.scan-wave i:nth-child(7){animation-delay:-.5s;height:56px}.scan-wave i:nth-child(4),.scan-wave i:nth-child(6){animation-delay:-.1s;height:44px}.scan-wave i:nth-child(5){animation-delay:-.4s;height:68px}@keyframes wave{to{transform:scaleY(.35);opacity:.45}}.progress-track{width:min(360px,70%);height:3px;background:#252b26;margin-top:25px;overflow:hidden;border-radius:3px}.progress-track i{display:block;height:100%;width:8%;background:var(--lime);box-shadow:0 0 9px var(--lime);transition:width .25s}.result-main{min-height:298px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;overflow:hidden}.pulse-orbit{position:absolute;width:210px;height:210px;border:1px solid rgba(199,255,53,.12);border-radius:50%;display:grid;place-items:center}.pulse-orbit:before,.pulse-orbit:after{content:"";position:absolute;border:1px solid rgba(199,255,53,.07);border-radius:50%;inset:-35px}.pulse-orbit:after{inset:-72px}.pulse-orbit span{width:6px;height:6px;background:var(--lime);border-radius:50%;box-shadow:0 0 25px 7px rgba(199,255,53,.55);animation:pulse 1s ease-out infinite}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(199,255,53,.42)}100%{box-shadow:0 0 0 70px rgba(199,255,53,0)}}.bpm-readout{position:relative;display:flex;align-items:flex-end}.bpm-readout>span{font-size:clamp(80px,14vw,132px);line-height:.8;font-weight:800;letter-spacing:-.07em;color:var(--lime);text-shadow:0 0 32px rgba(199,255,53,.12)}.bpm-readout small{font-weight:800;font-size:13px;letter-spacing:.18em;margin:0 0 5px 12px}.result-main p{position:relative;color:#9da79f;font-size:12px;margin:22px 0 0}.confidence-dot{margin-right:6px}.separator{margin:0 5px;color:#525a53}.result-actions{display:flex;gap:10px;padding:0 24px 18px;justify-content:center}.button{min-height:46px;border-radius:9px;padding:0 22px;font-weight:750;border:1px solid transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.button.primary{background:var(--lime);color:#10130d;box-shadow:0 6px 24px rgba(199,255,53,.11)}.button.primary:hover{background:#d4ff66}.button.secondary{background:#1a1e1b;color:var(--text);border-color:#343b35}.tempo-variants{display:flex;align-items:center;justify-content:center;gap:8px;padding:0 24px 23px;color:#747e76;font-size:11px}.tempo-variants button{color:#b9c3bb;background:#171b18;border:1px solid #303730;border-radius:6px;padding:3px 9px;cursor:pointer}.tap-panel{border-top:1px solid var(--line);min-height:100px;padding:20px 25px;display:flex;align-items:center;justify-content:space-between;background:#0d100e}.panel-label{font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--lime);font-weight:800}.tap-panel p{font-size:12px;color:#788279;margin:2px 0 0}.tap-controls{display:flex;align-items:center;gap:9px}.tap-controls output{width:76px;text-align:right;display:flex;align-items:baseline;justify-content:flex-end;gap:4px}.tap-controls output strong{font-size:27px;line-height:1}.tap-controls output small{font-size:9px;color:var(--muted)}#tap-button{height:50px;min-width:123px;border:1px solid rgba(199,255,53,.35);color:var(--lime);background:var(--lime-dark);border-radius:9px;cursor:pointer;font-weight:800;display:flex;align-items:center;justify-content:center;gap:20px}#tap-button.is-tapped{transform:scale(.97);background:rgba(199,255,53,.2)}kbd{font:9px/1 system-ui;color:#849084;border:1px solid #394239;padding:4px 5px;border-radius:4px}.reset-tap{border:0;background:transparent;color:#6f7871;font-size:11px;cursor:pointer}.tool-note{font-size:11px;color:#69726b;margin:15px 0 0}.content-section{max-width:var(--max);margin:auto;padding:112px 24px;border-top:1px solid rgba(255,255,255,.07)}.section-heading{max-width:660px;margin-bottom:48px}.section-heading h2,.editorial h2{font-size:clamp(34px,5vw,55px);line-height:1.03;letter-spacing:-.045em;margin:0}.section-heading>p:last-child,.split-heading>p{color:var(--muted);font-size:17px}.step-grid,.feature-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.step-grid li,.feature-grid article{background:var(--surface);padding:34px}.step-grid li>span{font:700 12px/1 ui-monospace,monospace;color:var(--lime)}.step-grid h3,.feature-grid h3{font-size:20px;margin:35px 0 7px}.step-grid p,.feature-grid p{color:var(--muted);font-size:14px;margin:0}.split-heading{max-width:none;display:grid;grid-template-columns:1.2fr .8fr;align-items:end;gap:60px}.split-heading>p{margin:0}.feature-grid{grid-template-columns:repeat(3,1fr)}.feature-grid article>span{height:42px;min-width:42px;padding:0 10px;display:inline-grid;place-items:center;border-radius:10px;background:var(--lime-dark);color:var(--lime);font-weight:800}.feature-grid h3{margin-top:27px}.editorial-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:100px}.editorial .eyebrow{margin-top:4px}.prose{font-size:16px;color:#a7b0a9}.prose p{margin:0 0 20px}.compact{padding-top:60px}.faq .section-heading{margin-bottom:32px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:24px 0;font-weight:650;font-size:17px;display:flex;justify-content:space-between;gap:30px}summary::-webkit-details-marker{display:none}summary span{color:var(--lime);font-size:22px;font-weight:400;transition:transform .2s}details[open] summary span{transform:rotate(45deg)}details p{color:var(--muted);max-width:780px;margin:-7px 0 25px;font-size:15px}.closing-cta{text-align:center;padding:120px 24px;background:radial-gradient(ellipse at bottom,rgba(199,255,53,.1),transparent 55%);border-top:1px solid rgba(255,255,255,.07)}.closing-cta h2{font-size:clamp(38px,6vw,66px);letter-spacing:-.05em;line-height:1;margin:0 0 32px}.closing-cta .button span{margin-left:25px}footer{max-width:var(--max);margin:auto;padding:60px 24px 28px}.footer-main{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:start}.footer-main>p{color:var(--muted);font-size:13px;margin:4px 0}.footer-main nav{display:flex;flex-direction:column;align-items:flex-end;gap:8px;color:#a7b0a9;font-size:13px}.footer-bottom{margin-top:55px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#626b64;text-transform:uppercase;letter-spacing:.1em;font-size:9px}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.noscript{position:fixed;bottom:0;left:0;right:0;margin:0;padding:12px;background:var(--error);color:#111;text-align:center;z-index:40}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--lime);outline-offset:3px}@media(max-width:760px){.nav-wrap{height:62px;padding:0 18px}.menu-button{display:block}.nav-wrap nav{display:none;position:absolute;top:62px;left:0;right:0;padding:18px;background:#101311;border-bottom:1px solid var(--line);flex-direction:column;gap:8px}.nav-wrap nav.is-open{display:flex}.nav-wrap nav a{padding:8px 4px}.hero{padding:58px 15px 58px}.hero-copy{margin-bottom:30px}.tool-topbar{padding:0 14px}.drop-zone{margin:13px;min-height:320px;padding:30px 16px}.drop-zone strong{font-size:19px}.drop-zone small{text-align:center}.trust-row{gap:13px;flex-wrap:wrap}.tap-panel{align-items:flex-start;gap:18px;flex-direction:column;padding:18px}.tap-controls{width:100%}.tap-controls output{width:auto;flex:1;justify-content:flex-start}.reset-tap{padding:10px 2px}.content-section{padding:78px 18px}.step-grid,.feature-grid{grid-template-columns:1fr}.step-grid h3{margin-top:20px}.split-heading,.editorial-grid{grid-template-columns:1fr;gap:25px}.section-heading{margin-bottom:32px}.footer-main{grid-template-columns:1fr;gap:22px}.footer-main nav{align-items:flex-start}.footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}.result-actions{flex-direction:column}.button{width:100%}.tempo-variants{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}