/* TrackFix by The Black Turn — theme */
:root{
  --brand:#e5173f;--brand-hi:#ff4d6d;--brand-deep:#b80d30;--on-brand:#fff;
  --grad:linear-gradient(135deg,#ff4d6d 0%,#e5173f 50%,#b80d30 100%);
  --bg:#0a0a0c;--s1:#121216;--s2:#18181d;--s3:#222229;--line:#25252d;--line2:#34343e;
  --tx:#f5f5f7;--mut:#a3a3ae;--dim:#71717c;
  --ok:#2fd28a;--err:#ff5d6c;
  --glow:rgba(229,23,63,.16);--shadow:0 18px 40px -18px rgba(229,23,63,.65);
  --card-shadow:0 1px 0 rgba(255,255,255,.03) inset;
  --wave-master:#ff4d6d;--wave-master-soft:rgba(255,77,109,.45);--wave-master-dim:rgba(255,77,109,.2);
  --wave-orig:rgba(255,255,255,.55);--wave-orig-on:rgba(255,255,255,.95);--wave-orig-dim:rgba(255,255,255,.15);
  --wave-bg:#0c0c0f;
  --r:18px;--r2:12px;--gut:16px;--maxw:1240px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  color-scheme:dark;
}
@media (prefers-color-scheme:light){
  :root:not([data-theme=dark]){
    --bg:#f6f6f8;--s1:#ffffff;--s2:#f7f7f9;--s3:#ececf1;--line:#e7e7ec;--line2:#d5d5de;
    --tx:#121216;--mut:#5c5c68;--dim:#8b8b96;
    --glow:rgba(229,23,63,.08);--shadow:0 16px 32px -16px rgba(229,23,63,.55);
    --card-shadow:0 1px 2px rgba(16,16,24,.04),0 8px 24px -12px rgba(16,16,24,.08);
    --wave-master:#e5173f;--wave-master-soft:rgba(229,23,63,.4);--wave-master-dim:rgba(229,23,63,.16);
    --wave-orig:rgba(18,18,22,.45);--wave-orig-on:rgba(18,18,22,.9);--wave-orig-dim:rgba(18,18,22,.12);
    --wave-bg:#fafafb;color-scheme:light;
  }
}
:root[data-theme=light]{
  --bg:#f6f6f8;--s1:#ffffff;--s2:#f7f7f9;--s3:#ececf1;--line:#e7e7ec;--line2:#d5d5de;
  --tx:#121216;--mut:#5c5c68;--dim:#8b8b96;
  --glow:rgba(229,23,63,.08);--shadow:0 16px 32px -16px rgba(229,23,63,.55);
  --card-shadow:0 1px 2px rgba(16,16,24,.04),0 8px 24px -12px rgba(16,16,24,.08);
  --wave-master:#e5173f;--wave-master-soft:rgba(229,23,63,.4);--wave-master-dim:rgba(229,23,63,.16);
  --wave-orig:rgba(18,18,22,.45);--wave-orig-on:rgba(18,18,22,.9);--wave-orig-dim:rgba(18,18,22,.12);
  --wave-bg:#fafafb;color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);font:15px/1.55 var(--font);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 520px at 88% -12%,var(--glow),transparent 62%),radial-gradient(700px 440px at -12% 8%,var(--glow),transparent 60%);background-repeat:no-repeat}
body.modal-open{overflow:hidden}
a{color:var(--brand-hi)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;-webkit-tap-highlight-color:transparent}
button:disabled{opacity:.6;cursor:progress}
svg{display:block}
img{max-width:100%}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;border-radius:8px}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--s1);padding:8px 12px;border-radius:8px}
.skip:focus{left:8px}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut);width:100%}
.muted{color:var(--mut)}

/* header */
.top{display:flex;align-items:center;gap:14px;padding:12px var(--gut);max-width:var(--maxw);width:100%;margin:0 auto;position:relative;z-index:30}
.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;flex:none}
.logo{width:40px;height:40px;border-radius:50%;background:#fff;flex:none;box-shadow:0 0 0 1px var(--line)}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-txt b{font-size:19px;letter-spacing:-.025em;font-weight:800}
.brand-txt small{color:var(--mut);font-size:11.5px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:var(--mut);text-decoration:none;font-size:14px;font-weight:600;padding:8px 12px;border-radius:99px;transition:color .2s,background .2s}
.nav a:hover{color:var(--tx);background:var(--s2)}
.top-actions{display:flex;align-items:center;gap:8px;margin-left:8px}
.icon-btn{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line2);color:var(--mut);transition:color .2s,background .2s}
.icon-btn:hover{color:var(--tx);background:var(--s2)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.i-sun{display:none}
:root[data-theme=light] .i-sun{display:block}:root[data-theme=light] .i-moon{display:none}
@media (prefers-color-scheme:light){:root:not([data-theme=dark]) .i-sun{display:block}:root:not([data-theme=dark]) .i-moon{display:none}}
.account{position:relative;display:flex;gap:8px;align-items:center;min-height:38px}
.btn-sm{padding:9px 16px;border-radius:99px;font-size:13.5px;font-weight:700;background:var(--grad);color:var(--on-brand);white-space:nowrap;box-shadow:var(--shadow)}
.btn-sm.ghosty{background:none;color:var(--tx);border:1px solid var(--line2);box-shadow:none}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:14px}
.menu{position:absolute;right:0;top:calc(100% + 8px);width:290px;background:var(--s1);border:1px solid var(--line2);border-radius:16px;padding:8px;box-shadow:0 24px 60px -20px rgba(0,0,0,.55);animation:pop .16s ease}
@keyframes pop{from{opacity:0;transform:translateY(-4px)}}
.menu-head{padding:8px 10px 10px;border-bottom:1px solid var(--line)}
.menu-head b,.menu-head span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.menu-head span{color:var(--mut);font-size:12.5px}
.menu-stat{display:flex;align-items:baseline;gap:8px;padding:10px}
.menu-stat b{font-size:22px;color:var(--brand-hi)}
.menu-stat span{color:var(--mut);font-size:13px}
.menu-hist{padding:0 10px 8px;max-height:220px;overflow:auto;font-size:13px}
.menu-hist p{margin:4px 0}
.menu-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim)}
.hist{padding:6px 0;border-top:1px solid var(--line)}
.hist span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hist small{color:var(--dim)}
.menu-item{display:block;width:100%;text-align:left;padding:10px;border-radius:10px;font-size:14px;font-weight:600;color:var(--tx);text-decoration:none}
.menu-item:hover{background:var(--s2)}

main{flex:1;width:100%}

/* landing */
.landing{max-width:800px;padding-top:clamp(18px,5vw,56px);padding-bottom:20px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;padding:6px 14px;border-radius:99px;border:1px solid var(--line2);font-size:12.5px;font-weight:700;color:var(--mut);background:var(--s1)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(47,210,138,.15)}
.landing h1{font-size:clamp(30px,6.2vw,56px);line-height:1.04;letter-spacing:-.04em;margin:0 0 14px;font-weight:850}
.landing h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--mut);font-size:clamp(15px,2.2vw,17.5px);max-width:620px;margin:0 auto 24px}
.tabs{display:inline-flex;padding:4px;border-radius:99px;background:var(--s1);border:1px solid var(--line);margin-bottom:18px;box-shadow:var(--card-shadow)}
.tabs button{padding:9px 18px;border-radius:99px;font-weight:700;font-size:14px;color:var(--mut);transition:background .2s,color .2s}
.tabs button.on{background:var(--tx);color:var(--bg)}
.drops{display:grid;gap:12px;grid-template-columns:1fr}
.drops.two{grid-template-columns:1fr 1fr}
.drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:220px;padding:24px 16px;border-radius:22px;cursor:pointer;
  background:linear-gradient(var(--s1),var(--s1)) padding-box,linear-gradient(135deg,rgba(255,77,109,.7),rgba(229,23,63,.2),var(--line)) border-box;border:1.5px dashed transparent;transition:transform .2s,box-shadow .2s;box-shadow:var(--card-shadow)}
.drop:hover,.drop.over{transform:translateY(-2px);background:linear-gradient(var(--s1),var(--s1)) padding-box,var(--grad) border-box;box-shadow:0 24px 50px -28px rgba(229,23,63,.6)}
.drop-ic{width:58px;height:58px;border-radius:18px;display:grid;place-items:center;background:var(--grad);margin-bottom:6px;box-shadow:var(--shadow)}
.drop-ic svg{width:26px;height:26px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.drop-t{font-size:18px}
.drop-s{color:var(--mut);font-size:13px}
.drop.filled .drop-ic{background:var(--ok)}
.drop.filled .drop-s{color:var(--ok)}
.trust{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;padding:0;margin:18px 0 0;color:var(--mut);font-size:13.5px}
.trust li{display:flex;align-items:center;gap:6px}
.trust svg{width:16px;height:16px;fill:none;stroke:var(--ok);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}

/* studio */
.studio{display:grid;gap:14px;grid-template-columns:minmax(0,1fr) 380px;align-items:start;padding-top:6px;padding-bottom:24px;animation:rise .35s ease both}
@keyframes rise{from{opacity:0;transform:translateY(8px)}}
.col-main,.col-side{display:grid;gap:14px;min-width:0}
.col-main{position:sticky;top:12px}
.card{background:var(--s1);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--card-shadow)}
.h3{margin:0 0 10px;font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:var(--mut);font-weight:800}
.card .h3:not(:first-child){margin-top:16px}
.track{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.tinfo{min-width:0;display:flex;flex-direction:column}
.tinfo b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:16px}
.tinfo span{color:var(--mut);font-size:12.5px}
.ghost{padding:8px 14px;border-radius:99px;border:1px solid var(--line2);font-size:13px;font-weight:700;flex:none;transition:background .2s}
.ghost:hover{background:var(--s3)}
.wave-wrap{position:relative;height:clamp(120px,22vw,190px);border-radius:var(--r2);background:var(--wave-bg);border:1px solid var(--line);overflow:hidden;touch-action:none;cursor:pointer}
#wave{width:100%;height:100%;display:block}
.pill{position:absolute;top:10px;right:10px;display:flex;align-items:center;gap:7px;padding:5px 10px;border-radius:99px;font-size:12px;font-weight:700;background:var(--s1);border:1px solid var(--line2);opacity:.94}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--brand-hi);animation:pulse 1s infinite ease-in-out}
.pill.ready i{background:var(--ok);animation:none}
@keyframes pulse{50%{opacity:.25}}
.times{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--mut);margin:8px 2px 12px;font-variant-numeric:tabular-nums}
.legend{display:flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}
.lg-a{background:var(--wave-orig)}.lg-b{background:var(--wave-master);margin-left:8px}
.transport{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.play{width:56px;height:56px;border-radius:50%;background:var(--grad);display:grid;place-items:center;flex:none;box-shadow:var(--shadow);transition:transform .15s}
.play:active{transform:scale(.94)}
.play svg{width:26px;height:26px;fill:#fff}
.play .i-pause,.play.is-on .i-play{display:none}
.play.is-on .i-pause{display:block}
.ab{display:flex;padding:4px;border-radius:99px;background:var(--bg);border:1px solid var(--line);flex:1;min-width:220px;max-width:340px}
.ab button{flex:1;padding:10px 12px;border-radius:99px;font-weight:700;font-size:14px;color:var(--mut);transition:background .18s,color .18s}
.ab button.on{background:var(--s3);color:var(--tx)}
.ab button[data-ab=B].on{background:var(--grad);color:#fff}
.switch{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--mut);cursor:pointer;user-select:none}
.switch input{position:absolute;opacity:0;pointer-events:none}
.switch span{width:36px;height:20px;border-radius:99px;background:var(--s3);border:1px solid var(--line2);position:relative;transition:background .2s;flex:none}
.switch span::after{content:"";position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);transition:transform .2s}
.switch input:checked+span{background:var(--brand);border-color:transparent}
.switch input:checked+span::after{transform:translateX(16px)}
.switch input:focus-visible+span{outline:2px solid var(--brand-hi);outline-offset:2px}
#spec{display:block;width:100%;height:56px;margin-top:14px}

.meters{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.meter{padding:12px;border-radius:var(--r2);background:var(--bg);border:1px solid var(--line);min-width:0}
.meter span{display:block;font-size:11.5px;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meter b{font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.meter.hi b{color:var(--brand-hi)}
.promo{display:flex;align-items:center;justify-content:space-between;gap:14px;text-decoration:none;color:var(--tx);font-size:14px;background:linear-gradient(120deg,rgba(229,23,63,.14),transparent 60%),var(--s1)}
.promo b{color:var(--brand-hi)}
.promo-go{flex:none;font-weight:800;color:var(--brand-hi);white-space:nowrap}

.presets{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.preset{text-align:left;padding:10px 12px;border-radius:var(--r2);background:var(--bg);border:1px solid var(--line);transition:border-color .18s,background .18s}
.preset:hover{border-color:var(--line2)}
.preset b{display:block;font-size:14px}
.preset span{display:block;font-size:11.5px;color:var(--mut);line-height:1.3}
.preset.on{border-color:var(--brand);background:rgba(229,23,63,.08)}
.preset.on b{color:var(--brand-hi)}
.seg{display:flex;gap:6px;padding:4px;border-radius:var(--r2);background:var(--bg);border:1px solid var(--line)}
.seg button{flex:1;padding:9px 6px;border-radius:9px;font-weight:700;font-size:13.5px;color:var(--mut);transition:background .18s,color .18s}
.seg button.on{background:var(--s1);color:var(--tx);box-shadow:inset 0 0 0 1px var(--line2),0 1px 2px rgba(0,0,0,.08)}
.seg-2l button{display:flex;flex-direction:column;line-height:1.2;padding:8px 4px}
.seg-2l small{font-size:11px;color:var(--dim);font-weight:600}
.seg-2l button.on small{color:var(--brand-hi)}

.sliders{display:grid;gap:12px}
.sl-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:4px}
.sl-top label{color:var(--tx);cursor:pointer}
.sl-top output{color:var(--mut);font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:24px;background:transparent;margin:0;cursor:pointer;touch-action:pan-y}
input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:4px;background:linear-gradient(90deg,var(--brand) var(--p,50%),var(--s3) var(--p,50%))}
input[type=range]::-moz-range-track{height:4px;border-radius:4px;background:linear-gradient(90deg,var(--brand) var(--p,50%),var(--s3) var(--p,50%))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;margin-top:-7px;box-shadow:0 0 0 1px rgba(0,0,0,.08),0 2px 8px rgba(0,0,0,.35);transition:transform .15s}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border:0;border-radius:50%;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.35)}
input[type=range]:active::-webkit-slider-thumb{transform:scale(1.2)}
.adv summary{list-style:none;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.adv summary::-webkit-details-marker{display:none}
.adv summary .h3{margin:0}
.adv[open] summary{margin-bottom:12px}
.chev{width:10px;height:10px;border-right:2px solid var(--mut);border-bottom:2px solid var(--mut);transform:rotate(45deg);transition:transform .2s;margin-right:4px}
.adv[open] .chev{transform:rotate(-135deg)}
.adv-foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px;gap:10px}
.link-btn{color:var(--brand-hi);font-weight:700;font-size:13px}

.cta{margin-top:12px;width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:15px;border-radius:14px;background:var(--grad);color:#fff;font-weight:800;font-size:16px;box-shadow:var(--shadow);transition:transform .15s,filter .2s}
.cta:hover{filter:brightness(1.06)}
.cta:active{transform:scale(.98)}
.cta svg,.dl-mini svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.fine{margin:10px 0 0;font-size:12px;color:var(--dim);text-align:center}
.fine a{color:var(--mut)}

/* marketing */
.studio-on .marketing{display:none}
.sec{padding-top:clamp(40px,7vw,72px);padding-bottom:8px}
.sec h2{font-size:clamp(24px,3.6vw,36px);letter-spacing:-.03em;line-height:1.1;margin:0 0 10px;text-align:center}
.sec-lead{text-align:center;color:var(--mut);margin:0 auto 26px;max-width:560px}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.steps li,.feats article{background:var(--s1);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--card-shadow)}
.steps h3,.feats h3{margin:10px 0 6px;font-size:17px}
.steps p,.feats p{margin:0;color:var(--mut);font-size:14px}
.step-num{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:800}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
.feats h3{margin-top:0}
.style-list{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.style-list li{padding:14px 16px;border-radius:var(--r2);background:var(--s1);border:1px solid var(--line)}
.style-list b{display:block}
.style-list span{color:var(--mut);font-size:13.5px}
.faq{max-width:820px;margin:24px auto 0;display:grid;gap:10px}
.faq details{background:var(--s1);border:1px solid var(--line);border-radius:var(--r2);padding:0 18px}
.faq summary{cursor:pointer;padding:16px 0;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand-hi);font-size:20px;line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:0 0 16px;color:var(--mut)}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:clamp(40px,7vw,72px);padding:28px;border-radius:24px;background:var(--grad);color:#fff;max-width:calc(var(--maxw) - 2*var(--gut));width:calc(100% - 2*var(--gut))}
.cta-band h2{text-align:left;margin:0 0 6px;color:#fff}
.cta-band p{margin:0;opacity:.9}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:12px;font-weight:800;text-decoration:none;white-space:nowrap}
.cta-band .btn.primary{background:#fff;color:var(--brand-deep)}

/* dock (mobile transport) */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:20;display:none;align-items:center;gap:10px;padding:10px var(--gut) calc(10px + env(safe-area-inset-bottom));background:var(--s1);border-top:1px solid var(--line);box-shadow:0 -10px 30px -10px rgba(0,0,0,.35)}
.dock .play{width:48px;height:48px}
.dock .ab{min-width:0;max-width:none}
.dl-mini{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line2);flex:none;color:var(--brand-hi)}

/* modal */
.modal{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:var(--gut);background:rgba(5,5,8,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:fade .18s ease}
@keyframes fade{from{opacity:0}}
.modal-box{position:relative;width:min(400px,100%);max-height:calc(100vh - 32px);overflow:auto;background:var(--s1);border:1px solid var(--line2);border-radius:22px;padding:26px 22px 20px;text-align:center;box-shadow:0 30px 80px -20px rgba(0,0,0,.6);animation:pop .2s ease}
.modal-x{position:absolute;top:10px;right:12px;width:34px;height:34px;border-radius:50%;font-size:22px;color:var(--mut)}
.modal-x:hover{background:var(--s3)}
.modal-logo{border-radius:50%;background:#fff;margin:0 auto 10px}
.modal-box h2{margin:0;font-size:22px;letter-spacing:-.02em}
.modal-sub{margin:4px 0 16px;color:var(--mut);font-size:14px}
.tabs.small{margin-bottom:14px}
.tabs.small button{padding:7px 16px;font-size:13px}
.auth-form{display:grid;gap:10px;text-align:left}
.auth-form label{display:grid;gap:5px;font-size:13px;font-weight:600;color:var(--mut)}
.auth-form input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line2);background:var(--bg);color:var(--tx);font:inherit;font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s}
.auth-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(229,23,63,.18)}
.form-err{margin:0;min-height:18px;color:var(--err);font-size:13px}
.auth-form .cta{margin-top:2px}

/* overlays */
.busy{position:fixed;inset:0;z-index:60;display:grid;place-items:center;background:rgba(5,5,8,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:var(--gut)}
.busy-box{width:min(320px,100%);padding:26px 22px;border-radius:20px;background:var(--s1);border:1px solid var(--line2);text-align:center}
.busy p{margin:14px 0 12px;font-weight:700}
.spin{width:40px;height:40px;margin:0 auto;border-radius:50%;border:3px solid var(--s3);border-top-color:var(--brand);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.bar{height:6px;border-radius:6px;background:var(--s3);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--grad);transition:width .2s}
.toast{position:fixed;left:50%;bottom:calc(88px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;pointer-events:none;z-index:80;padding:11px 16px;border-radius:12px;background:var(--tx);color:var(--bg);font-size:14px;font-weight:600;max-width:calc(100% - 32px);transition:opacity .25s,transform .25s;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{background:var(--err);color:#fff}

/* footer */
.foot{margin-top:clamp(40px,7vw,72px);border-top:1px solid var(--line);padding:28px var(--gut) 24px;color:var(--mut);font-size:13.5px}
.studio-on .foot{margin-top:24px}
.foot-in{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-brand{max-width:420px}
.foot-brand p{margin:10px 0 0}
.tbt-logo{display:inline-block;background:#fff;border-radius:12px;padding:4px 10px}
.tbt-logo img{display:block;height:44px;width:auto}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 18px;align-content:flex-start}
.foot-links a{color:var(--mut);text-decoration:none;font-weight:600}
.foot-links a:hover{color:var(--tx)}
.copy{max-width:var(--maxw);margin:20px auto 0;color:var(--dim);font-size:12.5px}
.kbd-hint{margin-left:6px}

/* legal pages */
.doc{max-width:780px;padding-top:24px}
.doc h1{font-size:clamp(28px,5vw,40px);letter-spacing:-.03em;margin:0 0 6px}
.doc h2{font-size:19px;margin:28px 0 8px}
.doc p,.doc li{color:var(--mut)}

/* responsive */
@media (max-width:1000px){
  .studio{grid-template-columns:minmax(0,1fr)}
  .col-main{position:static}
  .feats{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .top-actions{margin-left:auto}
}
@media (max-width:760px){
  .studio-on .dock{display:flex}
  .studio-on .foot{padding-bottom:calc(96px + env(safe-area-inset-bottom))}
  .player .transport{display:none}
  .player .times{margin-bottom:0}
  #spec{display:none}
  .meters{grid-template-columns:1fr 1fr}
  .kbd-hint{display:none}
  .drops.two{grid-template-columns:1fr}
  .drop{min-height:180px}
  .card{padding:14px}
  .steps,.feats{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:22px}
  .promo{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:440px){
  .preset span{display:none}
  .brand-txt small{display:none}
  .btn-sm{padding:8px 12px}
  .btn-sm.ghosty{display:none}
  .ab button{padding:10px 6px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}