@font-face{font-family:Bricolage Grotesque;font-style:normal;font-weight:200 800;font-display:swap;src:url(/fonts/bricolage-grotesque-latin-wght.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--teal:#007f83;--font-display:"Bricolage Grotesque",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--teal-dark:#00666a;--teal-ink:#004f53;--teal-pale:#e8f7f6;--ink:#0b1721;--muted:#54636f;--line:#dce5e8;--surface:#f5f8f8;--white:#fff;--shadow:0 16px 44px #0c303817;color:var(--ink);font-synthesis:none;background:#fff;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}button,a{font:inherit}button{cursor:pointer}a{color:var(--teal-dark);text-underline-offset:3px}img{max-width:100%;display:block}.generated-icon{object-fit:contain;flex:none;display:inline-block}.shell{width:min(1120px,100% - 40px);margin-inline:auto}.reading-width{width:min(640px,100% - 40px);margin-inline:auto}.skip-link{background:var(--ink);color:#fff;z-index:100;border-radius:.5rem;padding:.7rem 1rem;position:fixed;top:-5rem;left:1rem}.skip-link:focus{top:1rem}.site-header{border-bottom:1px solid var(--line);z-index:20;background:#fffffff5;height:72px;position:relative}.header-inner{justify-content:space-between;align-items:center;height:100%;display:flex}.brand{color:var(--teal);letter-spacing:-.02em;font-size:1.45rem;font-weight:800;text-decoration:none}.brand span{color:var(--teal-ink)}.site-nav{align-items:center;gap:1.85rem;display:flex}.site-nav a{color:#243743;font-size:.95rem;font-weight:600;text-decoration:none}.site-nav a:hover{color:var(--teal)}.menu-button{color:var(--teal-ink);background:0 0;border:0;border-radius:.55rem;padding:.6rem;display:none}.hero{text-align:center;background:radial-gradient(circle at 50% 12%,#effafa,#0000 45%);padding:54px 0 42px}.hero h1,.guide-hero h1{letter-spacing:-.025em;max-width:900px;margin:0 auto .8rem;font-size:clamp(2rem,5vw,3.6rem);line-height:1.06}.hero .lead{max-width:720px;color:var(--muted);margin:0 auto;font-size:clamp(1.05rem,2vw,1.25rem)}.prep-strip{flex-wrap:wrap;justify-content:center;gap:.75rem;margin:2rem auto 1.4rem;display:flex}.prep-strip span{border:1px solid var(--line);color:#334650;background:#fff;border-radius:999px;align-items:center;gap:.45rem;padding:.55rem .8rem;font-size:.9rem;display:inline-flex;box-shadow:0 4px 14px #12353c0a}.prep-strip .generated-icon{color:var(--teal)}.player-card{border:1px solid var(--line);max-width:650px;box-shadow:var(--shadow);text-align:center;background:#fffffff7;border-radius:24px;margin:0 auto;padding:1.6rem 2rem 1.3rem}.player-card.compact{margin:2rem 0}.player-kicker,.eyebrow{color:var(--teal-dark);letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:.45rem;font-size:.77rem;font-weight:800;display:inline-flex}.player-card h2{margin:.35rem 0 0;font-size:1.35rem}.player-intro{color:var(--muted);margin:.15rem 0 .65rem}.player-center{justify-content:center;display:flex}.play-ring{--progress-angle:0deg;color:#fff;isolation:isolate;background:linear-gradient(145deg,#079d9a 0%,#008c8d 52%,#00757b 100%);border:0;border-radius:50%;place-content:center;width:204px;height:204px;display:grid;position:relative;box-shadow:0 0 0 7px #fff}.play-ring:before{content:"";background:conic-gradient(var(--teal) var(--progress-angle),#dceeed 0);z-index:0;pointer-events:none;border-radius:50%;position:absolute;inset:-14px;transform:rotate(-90deg);-webkit-mask:radial-gradient(farthest-side,#0000 calc(100% - 11px),#000 calc(100% - 10px));mask:radial-gradient(farthest-side,#0000 calc(100% - 11px),#000 calc(100% - 10px))}.play-ring:focus-visible{outline-offset:12px;outline:4px solid #70d9d3}.play-label,.play-time{z-index:1;position:relative}.play-label{letter-spacing:.015em;font-size:1.85rem;font-weight:850;line-height:1.1}.play-time{font-variant-numeric:tabular-nums;margin-top:.7rem;font-size:1rem}.duration-group{border:1px solid var(--line);background:#eef3f4;border-radius:999px;max-width:310px;margin:1.2rem auto .5rem;padding:4px;display:flex}.duration-group button{color:#273943;background:0 0;border:0;border-radius:999px;flex:1;padding:.72rem .55rem;font-size:.9rem;font-weight:700}.duration-group button:disabled{cursor:not-allowed;opacity:.6}.status{margin:.65rem 0;font-weight:700}.player-note{text-align:left;color:var(--muted);justify-content:center;align-items:flex-start;gap:.45rem;margin:.6rem 0 0;font-size:.86rem;display:flex}.player-note .generated-icon{margin-top:.2rem}.limitation{color:#53616b;max-width:36rem;margin:1rem auto 0;font-size:.93rem}.button{border:0;border-radius:12px;padding:.78rem 1rem;font-weight:800;text-decoration:none;transition:transform .16s;display:inline-block}.button.primary{background:var(--teal);color:#fff}.button.secondary{color:var(--teal-ink);background:#fff;border:1px solid #a9cbcd}.button:hover{transform:translateY(-1px)}.listening-card{border:1px solid var(--line);background:#fff;border-radius:20px;gap:1.2rem;max-width:860px;margin:auto;padding:1.7rem;display:flex;box-shadow:0 12px 35px #11373d0f}.section-icon{background:var(--teal-pale);width:52px;height:52px;color:var(--teal);border-radius:15px;flex:none;place-items:center;display:grid}.listening-content h2{margin:.25rem 0 .2rem;font-size:1.5rem}.listening-content p{color:var(--muted);margin:.2rem 0 .8rem}.listen-actions,.feedback-buttons{flex-wrap:wrap;gap:.6rem;display:flex}.mini-status{font-size:.88rem}.comparison-feedback{border-top:1px solid var(--line);margin-top:1rem;padding-top:.9rem}.feedback-buttons button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.7rem 1.1rem;font-weight:700}.feedback-buttons button.is-selected{background:var(--teal);color:#fff;border-color:var(--teal)}.device-section{background:var(--surface);padding:64px 0}.section-heading{text-align:center;max-width:680px;margin:0 auto 1.7rem}.section-heading h2{letter-spacing:-.02em;margin:.35rem 0;font-size:clamp(1.8rem,3vw,2.45rem)}.section-heading p{color:var(--muted);margin:0}.device-links{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;max-width:1120px;margin:auto;display:grid}.device-links a{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:16px;align-items:center;gap:.8rem;padding:1.1rem;text-decoration:none;display:flex;box-shadow:0 6px 20px #15373c0a}.device-links a>.generated-icon:first-child{width:30px;height:30px}.device-links a>.generated-icon:last-child{width:20px;height:20px;margin-left:auto}.device-links span{display:grid}.device-links strong{font-size:1.05rem}.device-links small{color:var(--muted)}.feature-grid,.step-grid{grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2rem;display:grid}.feature-card,.step-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:1.35rem}.feature-card .generated-icon,.step-number{color:var(--teal)}.feature-card h3,.step-card h3{margin:.75rem 0 .25rem}.feature-card p,.step-card p{color:var(--muted);margin:0}.step-number{letter-spacing:.08em;font-size:.78rem;font-weight:900}.faq-list{max-width:660px;margin:2rem auto}.faq-list details{border-top:1px solid var(--line);padding:1rem 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;justify-content:space-between;font-weight:800;list-style:none;display:flex}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--teal);font-size:1.4rem}.faq-list details[open] summary:after{content:"–"}.faq-list p{color:var(--muted);margin:.6rem 0 0}.guide-hero{background:linear-gradient(#eef9f8 0,#fff 100%);padding:65px 0 42px}.guide-hero h1{margin:.45rem 0 .9rem;font-size:clamp(2.2rem,5vw,3.5rem)}.guide-hero .lead{color:var(--muted);margin:0;font-size:1.18rem}.reviewed{color:#5b6a74;align-items:center;gap:.35rem;margin-top:1rem;font-size:.85rem;display:flex}.guide-body{padding:36px 0 82px}.guide-body h2{letter-spacing:-.025em;margin:2.5rem 0 .75rem;font-size:1.7rem;line-height:1.2}.guide-body h3{margin:1.8rem 0 .4rem}.guide-body p,.guide-body li{color:#3f505b}.guide-body li+li{margin-top:.5rem}.guide-body .player-card{max-width:100%}.quick-answer{background:var(--teal-pale);border:1px solid #b9dada;border-radius:12px;padding:1rem 1.15rem;font-size:1.08rem}.callout{color:#274148;background:#f0fbfa;border:1px solid #b9dada;border-radius:14px;gap:.8rem;margin:1.5rem 0;padding:1rem 1.1rem;display:flex}.callout>.generated-icon{width:24px;height:24px;margin-top:.2rem}.callout strong{color:var(--ink);display:block}.callout p{margin:.2rem 0 0}.source-list{padding-left:1.1rem;font-size:.93rem}.legal-note{background:#fff9ec;border:1px solid #f0d4a3;border-radius:12px;padding:1rem}.site-footer{color:#c8d5d7;background:#0c2328;padding:52px 0 24px}.footer-grid{grid-template-columns:1.6fr repeat(3,1fr);gap:2rem;display:grid}.footer-title{text-transform:uppercase;letter-spacing:.08em;color:#fff;margin:.95rem 0 .6rem;font-size:.85rem;font-weight:700}.footer-grid a:not(.brand){color:#c8d5d7;margin:.45rem 0;text-decoration:none;display:block}.footer-brand{color:#31c1bd;display:inline-block}.footer-brand span{color:#fff}.footer-grid p{max-width:300px;font-size:.9rem}.footer-bottom{border-top:1px solid #244047;flex-wrap:wrap;align-items:center;gap:1rem;margin-top:2rem;padding-top:1.2rem;font-size:.85rem;display:flex}.privacy-note{align-items:center;gap:.35rem;display:flex}.badge-strip{border-top:1px solid #244047;flex:0 0 100%;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:center;gap:.7rem;min-width:0;margin-top:.35rem;padding:1.25rem 0 .35rem;display:grid}.badge-strip-label,.badge-strip-note{grid-column:1/-1}.badge-strip-label{color:#e5f3f3;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;font-size:.78rem;font-weight:800}.badge-strip-note{color:#8eafb2;margin-top:-.45rem;margin-bottom:.2rem;font-size:.82rem}.badge-strip a{background:#102d33;border:1px solid #2b4a50;border-radius:10px;justify-content:center;align-items:center;width:100%;height:68px;padding:.5rem .65rem;transition:border-color .15s,background .15s,transform .15s;display:flex!important}.badge-strip a:hover{background:#173a40;border-color:#65d7d1;transform:translateY(-1px)}.badge-strip a.badge-text-link{color:#d8eeee;letter-spacing:.01em;font-size:.8rem;font-weight:750;text-decoration:none}.badge-strip img{object-fit:contain;width:auto!important;max-width:100%!important;height:auto!important;max-height:48px!important}.not-found{text-align:center;padding:100px 20px}.not-found h1{color:var(--teal);margin:0;font-size:clamp(4rem,12vw,8rem)}@media (width<=760px){.shell,.reading-width{width:min(100% - 32px,1120px)}.site-header{height:64px}.menu-button{display:block}.site-nav{border-bottom:1px solid var(--line);background:#fff;flex-direction:column;align-items:flex-start;gap:.2rem;padding:1rem 16px 1.4rem;display:none;position:absolute;top:64px;left:0;right:0;box-shadow:0 12px 20px #14282c14}.site-nav.is-open{display:flex}.site-nav a{width:100%;padding:.7rem}.hero{padding:34px 0 30px}.hero h1{font-size:2.25rem}.prep-strip{gap:.45rem;margin-top:1.35rem}.prep-strip span{font-size:.78rem}.player-card{padding:1.2rem 1rem}.play-ring{width:172px;height:172px}.play-label{font-size:1.65rem}.play-time{margin-top:.55rem;font-size:1rem}.player-note{font-size:.8rem}.listening-section,.device-section,.content-section{padding:48px 0}.listening-card{padding:1.2rem;display:block}.section-icon{margin-bottom:1rem}.listen-actions .button{width:100%}.device-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}.device-links a{gap:.55rem;padding:.85rem}.device-links strong{font-size:.88rem}.device-links small{font-size:.7rem;line-height:1.3}.device-links a>.generated-icon:first-child{width:26px;height:26px}.device-links a>.generated-icon:last-child{width:16px;height:16px}.feature-grid,.step-grid{grid-template-columns:1fr}.guide-hero{padding:38px 0 18px}.guide-hero h1{font-size:2.35rem}.guide-body{padding-top:14px}.reviewed{margin-top:.6rem}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;align-items:flex-start;gap:.7rem}.badge-strip{justify-content:flex-start;width:100%}.badge-strip-label{width:100%}}.step-grid{padding-left:0;list-style:none}@media (width<=360px){.shell,.reading-width{width:calc(100% - 24px)}.hero h1,.guide-hero h1{font-size:2rem}.play-ring{width:160px;height:160px}.player-card{border-radius:18px}.duration-group button{padding:.55rem .3rem;font-size:.78rem}.device-links,.footer-grid{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.hero .lead{max-width:650px}.prep-strip{margin:1.15rem auto 1.35rem}.before-tone{color:var(--muted);flex-wrap:wrap;justify-content:center;align-items:baseline;gap:.35rem;margin:-.65rem auto 2.25rem;font-size:.85rem;display:flex}.before-tone button{color:var(--teal-dark);text-underline-offset:3px;background:0 0;border:0;margin:-.3rem -.4rem;padding:.3rem .4rem;font-weight:800;text-decoration:underline}.before-tone button:focus-visible{outline:2px solid var(--teal);outline-offset:3px}.before-status{color:var(--teal-dark);margin:-.35rem auto .7rem;font-size:.85rem;font-weight:700}.before-status[hidden]{display:none}.player-card.bare{max-width:650px;box-shadow:none;background:0 0;border:0;border-radius:0;margin:0 auto;padding:0}.player-center{padding-top:1rem}.player-card:not(.bare) .player-center{padding-top:2rem}.play-control{flex-direction:column;align-items:center;gap:.7rem;display:flex}.play-ring{background:linear-gradient(145deg,#058f90 0%,#007c80 55%,#006a70 100%);box-shadow:0 0 0 13px #fff}.play-ring:before{inset:-22px;-webkit-mask:radial-gradient(farthest-side,#0000 calc(100% - 10px),#000 calc(100% - 9px));mask:radial-gradient(farthest-side,#0000 calc(100% - 10px),#000 calc(100% - 9px))}.play-time{color:var(--teal-ink);margin:0;font-size:1.1rem;font-weight:800;line-height:1}.duration-group{max-width:360px;margin:.85rem auto .35rem}.duration-group button.is-selected{background:var(--teal);color:#fff;box-shadow:0 3px 10px #005f6338}.player-card.bare .status{margin:.55rem 0 .15rem}.player-card.bare .player-note{max-width:590px;margin:.45rem auto 0}.listening-section{padding:38px 0}.listening-card{max-width:760px}.device-section{padding:46px 0}.content-section{padding:58px 0}.device-links a{transition:border-color .16s,transform .16s,box-shadow .16s}.device-links a:hover{border-color:#a9cbcd;transform:translateY(-2px);box-shadow:0 9px 24px #15373c14}@media (width<=760px){.hero{padding:25px 0 24px}.hero h1{font-size:2.05rem}.hero .lead{font-size:.98rem;line-height:1.45}.prep-strip{gap:.4rem;margin:.85rem auto 1rem}.prep-strip span{gap:.32rem;padding:.42rem .58rem;font-size:.78rem}.prep-strip .generated-icon{width:17px;height:17px}.player-card.bare{padding:0}.duration-group{margin-top:.75rem}.player-card.bare .player-note{max-width:330px}.listening-section{padding:30px 0}.device-section,.content-section{padding:40px 0}.site-footer{padding:36px 0 18px}.footer-grid{gap:1.2rem}.footer-title{margin:.2rem 0 .5rem}.footer-grid p{margin:.5rem 0}.footer-bottom{margin-top:1.25rem}}.hero h1,.guide-hero h1,.section-heading h2,.listening-content h2,.guide-body h2,.guide-body h3,.player-card h2,.not-found h1,.brand-name,.play-label,.footer-brand{font-family:var(--font-display)}.hero h1,.guide-hero h1{letter-spacing:-.015em;font-weight:750}.section-heading h2,.listening-content h2,.guide-body h2{letter-spacing:-.01em;font-weight:700}.brand-name{letter-spacing:-.01em;font-weight:750}.play-label{letter-spacing:.03em;font-weight:700}[data-state=error] .status{color:#b3261e}[data-state=completed] .status{color:var(--teal-ink)}[data-state=completed] .status:before{content:"✓ "}[data-state=interrupted] .status{color:#8a5a12}.play-time{min-height:1em}.ad-band{padding:8px 0 34px}.ad-slot{border:1px solid var(--line);background:var(--surface);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:min(728px,100% - 32px);min-width:300px;min-height:280px;margin-inline:auto;display:flex;position:relative}.ad-label{letter-spacing:.08em;text-transform:uppercase;color:#5b6a74;font-size:.68rem;font-weight:700;position:static}.repeat-hint{color:var(--muted);max-width:420px;margin:.4rem auto 0;font-size:.85rem}.repeat-hint[hidden]{display:none}.after-actions{flex-wrap:wrap;justify-content:center;gap:.6rem;margin:.75rem 0 .2rem;display:flex}.after-actions[hidden],[data-compare-link][hidden]{display:none}.after-actions .button{padding:.62rem .95rem;font-size:.92rem}.no-sound{text-align:left;max-width:590px;color:var(--muted);margin:.8rem auto 0;font-size:.88rem}.no-sound summary{cursor:pointer;color:var(--teal-ink);text-align:center;padding:.3rem 0;font-weight:700;list-style:none}.no-sound summary::-webkit-details-marker{display:none}.no-sound ul{margin:.5rem 0 0;padding-left:1.2rem}.no-sound li+li{margin-top:.35rem}.fact-list{gap:1rem;max-width:640px;margin:1.6rem auto 0;padding:0;list-style:none;display:grid}.fact-list li{align-items:flex-start;gap:.7rem;display:flex}.fact-list .generated-icon{color:var(--teal);margin-top:.15rem}.fact-list strong{display:block}.fact-list p{color:var(--muted);margin:.1rem 0 0}.brand{align-items:center;gap:.38rem;min-height:2rem;line-height:1;display:inline-flex}.brand-mark{object-fit:contain;flex:none;width:38px;height:24px}.brand-name{letter-spacing:-.02em;align-items:baseline;display:inline-flex}.brand .brand-speaker{color:var(--teal-ink)}.brand .brand-eject{color:var(--teal)}.footer-brand .brand-speaker{color:#fff}.footer-brand .brand-eject{color:#31c1bd}@media (width<=760px){.brand{gap:.3rem}.brand-mark{width:33px;height:22px}}.download-grid{gap:1rem;margin:1.5rem 0 2.5rem;display:grid}.download-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:1.2rem;box-shadow:0 6px 20px #15373c0a}.download-card h2{margin:0 0 .35rem;font-size:1.3rem}.download-card p{margin:.25rem 0 .85rem}.download-card audio{width:100%;height:54px;margin:.75rem 0 1rem;display:block}.download-card .button{margin-top:.1rem}.speaker-test-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:20px;margin:1.8rem 0 2.5rem;padding:1.5rem}.speaker-test-card>h2{margin:.35rem 0 .2rem}.speaker-test-intro{color:var(--muted);margin:.2rem 0 1.4rem}.test-control-group{border-top:1px solid var(--line);padding:1.1rem 0}.test-control-group h3{margin:0 0 .2rem}.test-control-group p{margin:.2rem 0 .85rem;font-size:.93rem}.test-buttons{flex-wrap:wrap;gap:.55rem;display:flex}.test-buttons button{min-width:110px}.test-buttons button.is-playing{background:var(--teal);border-color:var(--teal);color:#fff}.test-buttons .sequence-button{flex-basis:190px}.frequency-button{color:var(--teal-ink);background:#fff;border:1px solid #a9cbcd;border-radius:999px;padding:.7rem 1rem;font-weight:800}.test-status-row{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding-top:1rem;display:flex}.test-status-row .status{margin:0}.test-stop{color:var(--teal-ink);background:#e8f7f6;border:0;border-radius:999px;padding:.55rem .85rem;font-weight:800}.test-stop[hidden]{display:none}.result-grid{grid-template-columns:1fr 1fr;gap:1rem;margin:1.2rem 0 2rem;display:grid}.result-grid section{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:1rem}.result-grid h3{margin:0 0 .35rem;font-size:1.05rem}.result-grid p{margin:0;font-size:.94rem}@media (width<=760px){.speaker-test-card{padding:1.15rem}.test-buttons .button,.frequency-button{flex:calc(50% - .55rem);min-width:0}.result-grid{grid-template-columns:1fr}.test-status-row{flex-direction:column;align-items:flex-start}}@media (width>=761px) and (width<=1020px){.site-nav{gap:1rem}.site-nav a{font-size:.86rem}}.table-scroll{margin:1.2rem 0 2rem;overflow-x:auto}.table-scroll:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.comparison-table{border-collapse:collapse;background:#fff;width:100%;min-width:620px}.comparison-table th,.comparison-table td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:.85rem 1rem}.comparison-table thead th{background:var(--teal-pale);color:var(--teal-ink)}.comparison-table tbody th{width:22%;color:var(--ink)}@media (width>=761px){.device-links{grid-template-columns:repeat(3,minmax(0,1fr))}}.speaker-test-card button.is-playing{background:var(--teal);border-color:var(--teal);color:#fff}.tone-field-row{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.8rem;display:flex}.tone-field-row label{color:var(--ink);font-weight:800}.tone-number-wrap{color:var(--teal-ink);align-items:center;gap:.45rem;font-weight:800;display:flex}.tone-number-wrap input{width:9rem;font:inherit;color:var(--ink);background:#fff;border:1px solid #a9cbcd;border-radius:12px;padding:.7rem .8rem}.tone-number-wrap input:focus,.waveform-field select:focus,.tone-range:focus-visible{outline-offset:2px;outline:3px solid #09878d33}.tone-range{width:100%;min-height:1.75rem;accent-color:var(--teal);margin:.8rem 0;display:block}.tone-adjust-row{justify-content:space-between;align-items:flex-end;gap:1rem;margin:1rem 0;display:flex}.waveform-field{flex:18rem;gap:.45rem;margin:0;display:grid}.waveform-field select{font:inherit;color:var(--ink);background:#fff;border:1px solid #a9cbcd;border-radius:12px;padding:.7rem .8rem}.tone-octave-actions{flex-wrap:wrap;gap:.55rem;display:flex}.frequency-button.is-selected{border-color:var(--teal);box-shadow:0 0 0 2px #09878d24}.tone-actions{border-top:1px solid var(--line);align-items:center;gap:.8rem;padding-top:1rem;display:flex}.tone-copy{margin-left:auto}.tone-download-length{align-items:center;gap:.5rem;font-weight:650;display:flex}.tone-download-length select{font:inherit;color:var(--ink);background:#fff;border:1px solid #a9cbcd;border-radius:12px;padding:.6rem .7rem}.tone-generator>.status{color:var(--teal-ink);margin:.9rem 0 .45rem;font-weight:800}.sweep-settings{border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;padding:1.1rem 0;display:grid}.sweep-field{color:var(--ink);gap:.4rem;font-weight:800;display:grid}.sweep-field span{color:var(--teal-ink);align-items:center;gap:.5rem;display:flex}.sweep-field input,.sweep-field select{width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid #a9cbcd;border-radius:12px;padding:.7rem .8rem}.sweep-field input:focus,.sweep-field select:focus{outline-offset:2px;outline:3px solid #09878d33}.sweep-presets{padding:.2rem 0 1.1rem}.sweep-actions{margin-top:.2rem}.sweep-readout{color:var(--teal-ink);justify-content:space-between;align-items:baseline;gap:1rem;margin:.9rem 0 .35rem;display:flex}.sweep-readout p{margin:0}.sweep-readout strong{font-variant-numeric:tabular-nums}.frequency-sweep progress{width:100%;height:.75rem;accent-color:var(--teal);margin:.4rem 0 .8rem;display:block}@media (width<=760px){.tone-field-row{flex-direction:column;align-items:flex-start}.tone-number-wrap,.tone-number-wrap input{width:100%}.tone-adjust-row{flex-direction:column;align-items:stretch}.waveform-field{flex-basis:auto;display:grid}.waveform-field select{width:100%}.tone-octave-actions .frequency-button{flex:calc(50% - .55rem)}.tone-actions{flex-direction:column;align-items:stretch}.tone-copy{margin-left:0}.tone-download-length{justify-content:space-between}.sweep-settings{grid-template-columns:1fr}.sweep-readout{flex-direction:column;align-items:flex-start;gap:.2rem}}.tool-followups{flex-wrap:wrap;justify-content:center;gap:.5rem .75rem;margin:.8rem auto 0;display:flex}.tool-followups a{min-height:38px;color:var(--teal-ink);background:#ffffffd1;border:1px solid #b9dada;border-radius:999px;align-items:center;padding:.4rem .72rem;font-size:.86rem;font-weight:750;text-decoration:none;display:inline-flex}.tool-followups a:hover{border-color:var(--teal);background:#fff}@media (width<=520px){.tool-followups{gap:.4rem}.tool-followups a{padding:.36rem .58rem;font-size:.78rem}}.nav-list{align-items:center;gap:.2rem;margin:0;padding:0;list-style:none;display:flex}.nav-group{position:relative}.nav-heading{display:none}.nav-trigger{color:#243743;background:0 0;border:0;border-radius:10px;align-items:center;gap:.4rem;min-height:44px;padding:0 .75rem;font-size:.95rem;font-weight:600;display:inline-flex}.nav-trigger:hover,.nav-group.is-open>.nav-trigger{color:var(--teal-dark);background:var(--teal-pale)}.nav-chevron{transition:transform .16s}.nav-group.is-open .nav-chevron{transform:rotate(180deg)}.nav-panel{z-index:30;border:1px solid var(--line);background:#fff;border-radius:14px;min-width:240px;margin:0;padding:.4rem;list-style:none;display:none;position:absolute;top:100%;left:0;box-shadow:0 18px 40px #0c303824}.nav-group--wide .nav-panel{grid-template-columns:1fr 1fr;min-width:min(460px,90vw);left:auto;right:0}.nav-group.is-open>.nav-panel{display:block}.nav-group--wide.is-open>.nav-panel{display:grid}.site-nav:not(.js-ready) .nav-group:focus-within>.nav-panel{display:block}.site-nav:not(.js-ready) .nav-group--wide:focus-within>.nav-panel{display:grid}.nav-panel a,.site-nav .nav-link{color:#243743;border-radius:8px;align-items:center;min-height:44px;padding:0 .8rem;font-size:.93rem;font-weight:600;text-decoration:none;display:flex}.nav-panel a:hover,.site-nav .nav-link:hover{background:var(--teal-pale);color:var(--teal-dark)}.site-nav a[aria-current=page]{color:var(--teal-dark);font-weight:800}.site-nav a.nav-start{background:var(--teal);color:#fff;white-space:nowrap;border-radius:12px;justify-content:center;align-items:center;min-height:44px;margin-left:.5rem;padding:0 1.05rem;font-size:.93rem;font-weight:800;display:inline-flex;box-shadow:0 6px 16px #007f8338}.site-nav a.nav-start:hover{background:var(--teal-dark);color:#fff}.nav-trigger:focus-visible,.nav-panel a:focus-visible,.site-nav .nav-link:focus-visible,.site-nav a.nav-start:focus-visible,.menu-button:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.menu-button{min-width:44px;min-height:44px}@media (width>=761px) and (width<=1020px){.nav-trigger,.site-nav .nav-link{padding:0 .5rem;font-size:.86rem}.site-nav a.nav-start{margin-left:.2rem;padding:0 .8rem}}@media (width<=760px){.site-nav{gap:0;max-height:calc(100vh - 64px);overflow-y:auto}.nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%}.nav-trigger{display:none}.nav-heading{color:var(--muted);font-family:var(--font-display);letter-spacing:.09em;text-transform:uppercase;margin:.8rem 0 .15rem;padding:0 .7rem;font-size:.72rem;font-weight:800;display:block}.nav-panel,.nav-group--wide .nav-panel,.nav-group--wide.is-open>.nav-panel{min-width:0;box-shadow:none;border:0;border-radius:0;padding:0;display:block;position:static}.nav-panel a,.site-nav .nav-link{width:100%;padding:0 .7rem}.nav-single{border-top:1px solid var(--line);margin-top:.4rem;padding-top:.3rem}.nav-cta{order:-1;margin:.6rem 0 .2rem}.nav-list{display:flex}.site-nav a.nav-start{width:100%;margin-left:0;display:flex}}.hero{padding:34px 0 26px}.hero .eyebrow{font-family:var(--font-display);margin-bottom:.35rem;font-size:.72rem}.hero .lead{font-size:clamp(1rem,1.8vw,1.15rem);line-height:1.45}.player-card.bare .prep-strip{gap:.4rem;margin:.7rem auto .25rem}.player-card.bare .prep-strip span{box-shadow:none;gap:.3rem;padding:.3rem .6rem;font-size:.76rem}.player-card.bare .before-tone{margin-top:.1rem;font-size:.88rem}.player-card.bare .before-tone button{min-height:32px;padding:0 .3rem}.about-strip{border-bottom:1px solid var(--line);background:var(--surface);text-align:center;padding:14px 0}.about-strip .limitation{max-width:44rem;margin:0 auto}.about-strip a{color:var(--teal-dark);font-weight:700}.duration-group{border-radius:12px;padding:3px}.duration-group button{border-radius:9px}.duration-group button.is-selected{color:var(--teal-dark);background:#fff;box-shadow:0 2px 8px #173a401f}.play-ring{box-shadow:0 0 0 9px #fff,0 12px 30px #00757b3d}.play-ring:before{background:conic-gradient(var(--teal) var(--progress-angle),#e4f2f1 0);inset:-17px;-webkit-mask:radial-gradient(farthest-side,#0000 calc(100% - 8px),#000 calc(100% - 7px));mask:radial-gradient(farthest-side,#0000 calc(100% - 8px),#000 calc(100% - 7px))}@media (width<=760px){.hero{padding:18px 0 20px}.hero h1{margin-bottom:.55rem;font-size:2rem}.hero .lead{font-size:.95rem}.player-center{padding-top:1.35rem}.play-control{gap:.5rem}.duration-group{margin-top:.55rem}}.guide-toc{display:none}@media (width>=1100px){.guide-layout.has-toc{grid-template-columns:220px minmax(0,640px);justify-content:center;gap:56px;width:min(100% - 40px,1120px);margin-inline:auto;display:grid}.guide-layout.has-toc .guide-body{width:auto;margin:0}.guide-toc{padding-top:36px;display:block}.guide-hero.has-toc .reading-width{margin-left:calc(50% - 182px);margin-right:auto}.guide-toc nav{max-height:calc(100vh - 48px);font-size:.88rem;position:sticky;top:24px;overflow-y:auto}.guide-toc-title{color:#56656f;letter-spacing:.08em;text-transform:uppercase;margin:0 0 .6rem;font-size:.74rem;font-weight:800}.guide-toc ul{margin:0;padding:0;list-style:none}.guide-toc a{border-left:2px solid var(--line);color:#3f505b;padding:.45rem .7rem;line-height:1.35;text-decoration:none;display:block}.guide-toc a:hover{color:var(--teal-dark);border-left-color:#a9cbcd}.guide-toc a[aria-current]{border-left-color:var(--teal);background:var(--teal-pale);color:var(--teal-dark);font-weight:700}.guide-toc a:focus-visible{outline:3px solid var(--teal);outline-offset:1px}}.guide-body h2{scroll-margin-top:1.2rem}.button{text-align:center;border-radius:12px;justify-content:center;align-items:center;min-height:44px;display:inline-flex}.button.primary{background:var(--teal);color:#fff;box-shadow:0 6px 16px #007f8338}.button.primary:hover{background:var(--teal-dark)}.button.secondary{color:var(--teal-ink);box-shadow:none;background:#fff;border:1px solid #a9cbcd}.button.secondary:hover{background:var(--teal-pale)}.button:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.chip,.prep-strip span,.tool-followups a{border-radius:999px}svg.generated-icon{vertical-align:middle;color:var(--teal);overflow:visible}.prep-strip span,.chip{align-items:center}.sr-only,.tool-head{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.guide-hero{padding-bottom:28px}.guide-body{padding-top:18px}.tool-card{margin:.4rem 0 2rem}.speaker-test-card.tool-card{padding:1.15rem}.tool-card .speaker-test-intro,.tool-card>p:not(.status):not(.player-note):not(.capability){color:var(--muted);margin:.1rem 0 .9rem;font-size:.93rem}.tool-card .player-note{margin-top:.8rem;font-size:.82rem}.tool-card .test-control-group:first-of-type{border-top:0;padding-top:.2rem}.tool-field{margin:.95rem 0 0}.tool-label{letter-spacing:.06em;text-transform:uppercase;color:#2b3c46;margin:0 0 .4rem;font-size:.74rem;font-weight:800;display:block}.button.small{min-height:36px;padding:.3rem .7rem;font-size:.9rem;font-weight:800}.tool-primary{width:100%;min-height:52px;font-size:1.05rem}.tool-secondary-actions{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:.6rem;margin-top:1rem;padding-top:1rem;display:flex}.tool-secondary-actions .button{flex:1 1 0;min-width:7.5rem;padding-inline:.6rem}.tool-card .test-stop,.tool-card .button.test-stop{min-height:44px;color:var(--teal-ink);background:#fff;border:1px solid #a9cbcd;border-radius:12px;justify-content:center;align-items:center;padding:0 1rem;font-weight:800;display:inline-flex}.tool-card .test-stop[hidden],.tool-card .button[hidden]{display:none}.seg{border:1px solid var(--line);background:#eef3f4;border-radius:12px;gap:2px;padding:3px;display:flex}.seg label{flex:1 1 0;min-width:0;display:block;position:relative}.seg input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.seg label span{color:#273943;text-align:center;border-radius:9px;justify-content:center;align-items:center;min-height:38px;padding:0 .3rem;font-size:.88rem;font-weight:700;line-height:1.15;display:flex}.seg input:checked+span{color:var(--teal-dark);background:#fff;box-shadow:0 2px 8px #173a401f}.seg input:focus-visible+span{outline:3px solid var(--teal);outline-offset:1px}.seg input:disabled{cursor:not-allowed}.seg input:disabled+span{opacity:.55}.frequency-button{min-height:40px}.frequency-button:focus-visible,.noise-button:focus-visible,.channel-button:focus-visible,.test-stop:focus-visible,.tool-card .button:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.chip-row{scroll-snap-type:x proximity;scrollbar-width:thin;gap:.4rem;margin:0 -4px;padding:4px 4px 6px;display:flex;overflow-x:auto}.chip-row>*{scroll-snap-align:start;flex:none}@media (width>=761px){.chip-row{flex-wrap:wrap;overflow:visible}.tool-primary{width:auto;min-width:16rem}}@media (width<=760px){.tool-card .frequency-buttons{scroll-snap-type:x proximity;scrollbar-width:thin;flex-wrap:nowrap;margin:0 -4px;padding:4px 4px 6px;display:flex;overflow-x:auto}.tool-card .frequency-buttons .frequency-button{scroll-snap-align:start;flex:none;min-width:0;padding:0 .85rem;font-size:.88rem}.guide-hero{padding-bottom:14px}.guide-body{padding-top:8px}}.stereo-buttons{grid-template-columns:1fr 1fr;gap:.55rem;display:grid}.stereo-buttons .tool-primary{grid-column:1/-1}.stereo-buttons .button{min-width:0}.test-buttons.sequence-buttons .button{flex:11rem}.test-buttons.sequence-buttons{margin-top:.55rem}.tool-actions-row,.sweep-actions{gap:.65rem;margin-top:1rem;display:flex}.tool-actions-row .tool-primary,.sweep-actions .tool-primary{flex:1;width:auto;min-width:0}.phase-buttons{grid-template-columns:1fr 1fr;gap:.55rem;display:grid}.phase-buttons .button{flex-direction:column;gap:.1rem;min-width:0;min-height:64px;padding:.6rem}.phase-buttons .button strong{font-size:1rem}.phase-buttons .button span{opacity:.85;font-size:.8rem;font-weight:600}.phase-buttons .button.primary span{opacity:1}.phase-intro p{color:var(--muted);margin:.1rem 0 .9rem;font-size:.93rem}.tool-card .status{margin:.7rem 0 .2rem}@media (width<=760px){.sweep-settings{grid-template-columns:1fr 1fr;gap:.7rem;padding:.9rem 0}.sweep-settings .sweep-field:nth-child(n+4){grid-column:1/-1}.sweep-readout{margin-top:.6rem}}.brand-mark{border-radius:8px;width:32px;height:32px}.brand{gap:.55rem}.guide-hero{padding:22px 0 14px}.guide-hero .reading-width{width:min(860px,100% - 40px)}.guide-hero h1{margin:.25rem 0 .5rem;font-size:clamp(1.9rem,3.4vw,2.2rem);line-height:1.12}.guide-hero .lead{font-size:1.04rem;line-height:1.45}.guide-hero .eyebrow{font-size:.72rem}.hero-row{flex-wrap:wrap;align-items:center;gap:.5rem 1rem;margin-top:.7rem;display:flex}.hero-row .reviewed{margin:0;font-size:.78rem}.hero-action{min-height:44px;padding:.4rem 1.1rem}@media (width>=1100px){.guide-hero.has-toc .reading-width{width:min(860px,50% + 142px)}}@media (width<=760px){.guide-hero{padding:18px 0 10px}.guide-hero h1{font-size:1.85rem}.guide-hero .lead{font-size:.98rem}.hero-row .hero-action{flex:100%}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media (width<=480px){.guide-hero{padding:10px 0 6px}.guide-hero .reading-width{width:calc(100% - 28px)}.guide-hero .eyebrow{font-size:.7rem}.guide-hero h1{margin:.1rem 0 .35rem;font-size:1.75rem;line-height:1.1}.guide-hero .lead{margin:0;font-size:.93rem;line-height:1.38}.hero-row{gap:.35rem .8rem;margin-top:.35rem}.guide-body{padding-top:4px}.tool-card{margin:.25rem 0 1.5rem}.speaker-test-card.tool-card{padding:.85rem}.tool-card .speaker-test-intro,.tool-card>p:not(.status):not(.player-note):not(.capability){margin:0 0 .5rem;font-size:.9rem;line-height:1.4}.tool-card .test-control-group:first-of-type{padding-top:.1rem}.test-control-group p{margin:.15rem 0 .6rem;font-size:.9rem;line-height:1.4}.test-control-group h3{font-size:1.02rem}.download-grid{gap:.75rem;margin:1rem 0 1.5rem}.download-card{padding:.9rem}.download-card h2{font-size:1.15rem}.download-card p{margin:.2rem 0 .5rem}.download-card audio{margin:.5rem 0 .7rem}}.play-time{margin-top:20px}.speaker-test-card button.is-playing:hover,.test-buttons button.is-playing:hover{background:var(--teal);border-color:var(--teal);color:#fff}@media (width>=761px){.hero .lead{margin-bottom:1.5rem}}@media (width<=760px){.hero .lead{margin-bottom:.75rem}}.play-drops,.play-countdown{display:none}.channel-indicator{height:34px;color:var(--teal-ink);pointer-events:none;user-select:none;justify-content:center;align-items:center;gap:.9rem;margin:.7rem 0 .2rem;font-weight:800;display:flex}.channel-indicator span{opacity:.75;border-radius:999px;padding:.15rem .8rem;line-height:1.5;display:inline-block}[data-channel=L] .channel-indicator [data-ch=L],[data-channel=B] .channel-indicator [data-ch=B],[data-channel=R] .channel-indicator [data-ch=R]{opacity:1;background:var(--teal);color:#fff}[data-channel=L] .channel-indicator [data-ch]:not([data-ch=L]),[data-channel=B] .channel-indicator [data-ch]:not([data-ch=B]),[data-channel=R] .channel-indicator [data-ch]:not([data-ch=R]){opacity:.75}.phase-waves{pointer-events:none;height:64px;margin:.8rem 0 .3rem;position:relative;overflow:hidden}.phase-wave{width:100%;height:100%;position:absolute;top:0;left:0;overflow:hidden}.phase-wave svg{fill:none;width:200%;height:100%;display:block}.phase-wave-a path{stroke:#007f83;stroke-width:6px;stroke-opacity:.45;stroke-linecap:round;vector-effect:non-scaling-stroke}.phase-wave-b path{stroke:#0b1721;stroke-width:2px;stroke-linecap:round;vector-effect:non-scaling-stroke}[data-wave=out] .phase-wave-b{transform:scaleY(-1)}@media (prefers-reduced-motion:no-preference){@keyframes se-breathe{0%,to{opacity:0;transform:scale(1)}50%{opacity:.32;transform:scale(1.09)}}@keyframes se-ripple{0%{opacity:.5;transform:scale(1)}to{opacity:0;transform:scale(1.3)}}@keyframes se-pulse{0%,to{box-shadow:0 0 #007f8300}50%{box-shadow:0 0 0 5px #007f8333}}@keyframes se-pop{0%{transform:scale(.94)}to{transform:scale(1)}}@keyframes se-rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes se-rise-sm{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}@keyframes se-drop{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}.play-ring{transition:transform .16s ease-out}.play-ring:active{transform:scale(.97)}.play-ring:after{content:"";border:2px solid var(--teal);opacity:0;pointer-events:none;z-index:-1;border-radius:50%;animation:4s ease-in-out infinite se-breathe;position:absolute;inset:-17px}.play-ripples{pointer-events:none;z-index:-1;position:absolute;inset:0}.play-ripples i{border:2px solid var(--teal);opacity:0;border-radius:50%;position:absolute;inset:0}[data-audio-player]:is([data-state=starting],[data-state=playing],[data-state=resting]) .play-ring:after{animation:none}[data-audio-player]:is([data-state=starting],[data-state=playing]) .play-ripples i{animation:1.6s ease-out infinite se-ripple}[data-audio-player]:is([data-state=starting],[data-state=playing]) .play-ripples i:nth-child(2){animation-delay:.53s}[data-audio-player]:is([data-state=starting],[data-state=playing]) .play-ripples i:nth-child(3){animation-delay:1.06s}button.is-playing,a.is-playing{animation:1.8s ease-in-out infinite se-pulse}.dtmf-key.is-playing,.dtmf-key-alt.is-playing{animation:.18s ease-out se-pop}.button,.chip,.tool-followups a,.frequency-button,.noise-button,.channel-button,.duration-group button,.device-links a,.feature-card,.step-card,.download-card{transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out}@media (hover:hover){.button:not(:disabled):hover,.chip:hover,.tool-followups a:hover,.frequency-button:not(:disabled):hover,.noise-button:not(:disabled):hover,.channel-button:not(:disabled):hover,.device-links a:hover,.feature-card:hover,.step-card:hover,.download-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px #15373c1a}}.button:not(:disabled):active,.chip:active,.tool-followups a:active,.frequency-button:not(:disabled):active,.noise-button:not(:disabled):active,.channel-button:not(:disabled):active,.device-links a:active{transform:translateY(0)scale(.98)}.nav-chevron{transition:transform .18s ease-out}@media (width>=761px){.nav-panel{visibility:hidden;opacity:0;pointer-events:none;transition:opacity .16s ease-out,transform .16s ease-out,visibility 0s linear .16s;display:block;transform:translateY(-6px)}.nav-group:last-of-type .nav-panel{display:grid}.nav-group.is-open>.nav-panel,.site-nav:not(.js-ready) .nav-group:focus-within>.nav-panel{visibility:visible;opacity:1;pointer-events:auto;transition-delay:0s;transform:none}}@media (width<=760px){.site-nav.is-open{animation:.2s ease-out se-drop}}html.js-motion .reveal:not(.is-revealed){opacity:0;transform:translateY(12px)}.reveal.is-revealed{animation:.4s ease-out backwards se-rise}details[open]>:not(summary){animation:.25s ease-out se-rise-sm}.guide-toc a{transition:background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out}@keyframes se-droplet{0%{opacity:0;transform:translate(0)scale(.6)}20%{opacity:.9}70%{opacity:.5}to{opacity:0;transform:translate(var(--dx,0), -36px) scale(1)}}@keyframes se-wave-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.play-drops{pointer-events:none;z-index:1;height:0;display:block;position:absolute;top:30%;left:0;right:0}.play-drops i{opacity:0;width:18px;height:18px;margin-left:-9px;position:absolute;top:0;left:50%}.play-drops i:first-child{--dx:-34px;margin-left:-34px}.play-drops i:nth-child(2){--dx:4px;width:22px;height:22px;margin-left:-11px}.play-drops i:nth-child(3){--dx:38px;width:15px;height:15px;margin-left:24px}.play-drops svg{width:100%;height:100%;display:block}.play-drops i:nth-child(odd) path{fill:#fff;stroke:none}.play-drops i:nth-child(2n) path{fill:#bff0ec;stroke:none}[data-audio-player][data-state=playing] .play-drops i{animation:2.4s ease-out infinite se-droplet}[data-audio-player][data-state=playing] .play-drops i:nth-child(2){animation-delay:.8s}[data-audio-player][data-state=playing] .play-drops i:nth-child(3){animation-delay:1.6s}.play-ring:before{display:none}.play-countdown{pointer-events:none;z-index:0;opacity:0;fill:none;width:calc(100% + 34px);height:calc(100% + 34px);display:block;position:absolute;inset:-17px;transform:rotate(-90deg)}.play-countdown circle{stroke-width:3.8px}.play-countdown-track{stroke:#e8f7f6}.play-countdown-bar{stroke:#007f83;stroke-dasharray:100;stroke-dashoffset:0}[data-audio-player]:is([data-state=starting],[data-state=playing],[data-state=resting]) .play-countdown{opacity:1}.channel-indicator span{transition:opacity .2s ease-out,transform .2s ease-out,background-color .2s ease-out,color .2s ease-out}[data-channel=L] .channel-indicator [data-ch=L],[data-channel=B] .channel-indicator [data-ch=B],[data-channel=R] .channel-indicator [data-ch=R]{transform:scale(1.2)}[data-phase-test][data-wave] .phase-wave svg{animation:2.4s linear infinite se-wave-scroll}[data-phase-test][data-wave] .phase-wave-b svg{animation-duration:2.4s}}@media (prefers-reduced-motion:no-preference) and (hover:hover){@keyframes se-hop{0%,to{transform:none}40%{transform:translateY(-4px)rotate(-6deg)}70%{transform:translateY(1px)}}@keyframes se-wobble{0%,to{transform:none}30%{transform:rotate(-9deg)scale(1.06)}60%{transform:rotate(6deg)scale(1.03)}}.device-links a>.generated-icon:first-child{border-radius:10px;transition:transform .22s ease-out,background-color .22s ease-out,box-shadow .22s ease-out}.device-links a:hover>.generated-icon:first-child{background-color:var(--teal-pale);box-shadow:0 0 0 6px var(--teal-pale);transform:translateY(-1px)rotate(-6deg)scale(1.08)}.device-links a>.generated-icon:last-child,.tool-followups a .generated-icon{transition:transform .2s ease-out}.device-links a:hover>.generated-icon:last-child,.tool-followups a:hover .generated-icon{transform:translate(4px)}.feature-card:hover>.generated-icon,.step-card:hover>.generated-icon,.fact-list li:hover>.generated-icon,.callout:hover>.generated-icon{animation:.5s ease-out se-hop}.brand-mark{transition:transform .2s ease-out}.brand:hover .brand-mark{animation:.6s ease-in-out se-wobble}figure>a{border-radius:inherit;display:block;overflow:hidden}figure>a img{transition:transform .5s ease-out}figure>a:hover img{transform:scale(1.03)}.guide-body p a,.guide-body li a,.content-section p a,.faq-list a{text-decoration-color:#007f8373;transition:text-underline-offset .18s ease-out,text-decoration-color .18s ease-out,color .18s ease-out}.guide-body p a:hover,.guide-body li a:hover,.content-section p a:hover,.faq-list a:hover{text-underline-offset:5px;text-decoration-color:var(--teal);color:var(--teal)}.duration-group button:not(.is-selected):not(:disabled):hover,.dtmf-key:not(:disabled):hover{transform:translateY(-1px)}.dtmf-key{transition:transform .15s ease-out,background-color .15s ease-out}.footer-grid a:not(.brand){transition:transform .18s ease-out,color .18s ease-out}.footer-grid a:not(.brand):hover{color:#fff;transform:translate(3px)}}