/* Speaker Cleaner — shared styles
   Palette: deep water teal console on a pale mineral page, aqua signal, amber caution. */

:root{
  --deep:#06343C;
  --deep-2:#0A4C56;
  --deep-3:#0E626F;
  --aqua:#19E3C4;
  --aqua-dim:#0FB79E;
  --amber:#FFB339;
  --danger:#FF6B5A;
  --paper:#F3F7F6;
  --card:#FFFFFF;
  --ink:#0A1F23;
  --ink-2:#3C5257;
  --ink-3:#6B8187;
  --line:#D9E4E2;
  --radius:14px;
  --measure:64ch;
  --shell:1080px;
  --font-head:"Space Grotesk","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-body:"IBM Plex Sans","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-meter:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--deep-3);text-underline-offset:3px}
a:hover{color:var(--deep)}
:focus-visible{outline:3px solid var(--deep-3);outline-offset:2px;border-radius:4px}

h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;line-height:1.15;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2rem,5.2vw,3.1rem);letter-spacing:-.03em}
h2{font-size:clamp(1.45rem,3.2vw,2rem);margin-top:0}
h3{font-size:1.12rem;letter-spacing:-.01em}
p,ul,ol{margin:0 0 1.1em}
ul,ol{padding-left:1.25em}
li{margin-bottom:.4em}
hr{border:0;border-top:1px solid var(--line);margin:0}

.wrap{width:100%;max-width:var(--shell);margin:0 auto;padding:0 20px}
.prose{max-width:var(--measure)}
.lede{font-size:1.12rem;color:var(--ink-2)}
.muted{color:var(--ink-3)}
.small{font-size:.9rem}

/* ---------- header ---------- */
.site-head{background:var(--deep);color:#EAF6F4}
.head-bar{display:flex;align-items:center;gap:16px;min-height:60px;position:relative}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--font-head);font-weight:600;font-size:1.05rem;color:#fff;text-decoration:none;letter-spacing:-.01em}
.brand svg{width:22px;height:22px;flex:none}

.nav-toggle-input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;flex:none;border-radius:10px;
  align-items:center;justify-content:center;cursor:pointer;background:rgba(255,255,255,.08);color:#EAF6F4}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle .icon-close{display:none}
.nav-toggle-input:checked + .nav-toggle .icon-open{display:none}
.nav-toggle-input:checked + .nav-toggle .icon-close{display:block}
.nav-toggle-input:focus-visible + .nav-toggle{outline:3px solid var(--aqua);outline-offset:2px}

.nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#B9D8D5;text-decoration:none;font-size:.93rem;padding:7px 11px;border-radius:8px}
.nav a:hover,.nav a[aria-current="page"]{background:rgba(255,255,255,.1);color:#fff}

@media (max-width:760px){
  .nav-toggle{display:flex}
  .nav{
    display:none;position:absolute;left:0;right:0;top:100%;margin:0;
    flex-direction:column;gap:2px;background:var(--deep-2);
    padding:10px;border-radius:0 0 16px 16px;
    box-shadow:0 22px 40px -18px rgba(0,0,0,.6);z-index:20;
  }
  .nav-toggle-input:checked ~ .nav{display:flex}
  .nav a{padding:13px 14px;font-size:1rem}
}

[hidden]{display:none!important}
#panWrap{margin-top:12px}

/* ---------- hero + console ---------- */
.hero{background:var(--deep);color:#fff;padding:26px 0 46px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto 0 -1px 0;height:1px;background:rgba(255,255,255,.08)}
.hero h1{color:#fff;max-width:18ch}
.hero .lede{color:#A9CDCA;max-width:48ch;font-size:1.06rem}
.hero-grid{display:grid;gap:20px;align-items:start;grid-template-columns:minmax(0,1fr);grid-template-areas:"copy" "tool" "points"}
.hero-copy{grid-area:copy}
.hero-grid .console{grid-area:tool}
.hero-grid .hero-points{grid-area:points}
@media(min-width:900px){
  .hero{padding-top:44px}
  .hero-grid{grid-template-columns:minmax(0,1fr) 430px;grid-template-areas:"copy tool" "points tool";grid-template-rows:auto 1fr;gap:22px 52px}
}
/* compact phone layout so Start is reachable without scrolling */
@media(max-width:600px){
  .hero{padding:14px 0 30px}
  .hero h1{font-size:1.7rem;max-width:none;margin-bottom:.3em}
  .hero .lede{font-size:.98rem;line-height:1.5;margin:0}
  .hero-grid{gap:16px}
  .console{padding:14px 14px 16px;border-radius:18px}
  .mode-note{font-size:.84rem;line-height:1.45;margin-top:10px;min-height:4.4em}
  .dial{width:132px;height:132px;margin:2px auto 0}
  .readout{font-size:2rem}
  .controls{gap:10px;margin-top:10px}
  .actions{margin-top:10px}
  .status{margin-top:8px;font-size:.84rem;min-height:2.6em}
}

.console{
  background:linear-gradient(180deg,#0B4650 0%,#083A43 100%);
  border:1px solid rgba(255,255,255,.14);
  border-radius:20px;
  padding:20px 18px 22px;
  box-shadow:0 26px 60px -30px rgba(0,0,0,.85);
}
.modes{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;background:rgba(0,0,0,.24);padding:6px;border-radius:12px}
@media(min-width:340px){.modes{grid-template-columns:repeat(4,1fr)}}
.mode{
  appearance:none;border:0;background:transparent;color:#9FC4C1;
  font:600 .82rem/1.2 var(--font-head);padding:9px 4px;border-radius:8px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:4px;
}
.mode svg{width:17px;height:17px}
.mode:hover{color:#E6F7F4}
.mode[aria-pressed="true"]{background:var(--aqua);color:#04262C}

.mode-note{color:#A9CDCA;font-size:.9rem;margin:13px 2px 0;min-height:2.6em}

/* dial */
.dial{position:relative;width:200px;height:200px;margin:8px auto 4px}
.dial svg{width:100%;height:100%;transform:rotate(-90deg)}
.dial .track{fill:none;stroke:rgba(255,255,255,.12);stroke-width:8}
.dial .arc{fill:none;stroke:var(--aqua);stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset .2s linear}
.dial .level{fill:none;stroke:rgba(25,227,196,.45);stroke-width:3}
.dial-face{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.readout{font:500 2.5rem/1 var(--font-meter);color:#fff;font-variant-numeric:tabular-nums}
.readout-sub{font-size:.78rem;color:#8FB6B3;letter-spacing:.02em}

.controls{display:grid;gap:14px;margin-top:14px}
.field{display:grid;gap:7px}
.field-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.field label{font-size:.86rem;color:#8FB6B3;font-weight:700}
.field-val{font:500 .86rem var(--font-meter);color:var(--aqua)}
.seg{display:flex;gap:6px}
.seg button{
  flex:1;appearance:none;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  color:#CFE6E4;font:500 .85rem var(--font-body);padding:8px 6px;border-radius:9px;cursor:pointer;
}
.seg button:hover{background:rgba(255,255,255,.14)}
.seg button[aria-pressed="true"]{background:#fff;color:var(--deep);border-color:#fff;font-weight:600}

input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:24px;background:transparent;cursor:pointer;margin:0;
}
input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:3px;background:rgba(255,255,255,.18)}
input[type=range]::-moz-range-track{height:5px;border-radius:3px;background:rgba(255,255,255,.18)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-7.5px;border-radius:50%;background:#fff;border:3px solid var(--aqua)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border:3px solid var(--aqua);border-radius:50%;background:#fff}

.actions{display:grid;grid-template-columns:2fr 1fr;gap:9px;margin-top:16px}
.btn{
  appearance:none;border:0;border-radius:11px;cursor:pointer;
  font:600 1rem/1 var(--font-head);padding:15px 14px;
}
.btn-go{background:var(--aqua);color:#042127}
.btn-go:hover{background:#2AF3D4}
.btn-ghost{background:rgba(255,255,255,.1);color:#DCEFED;border:1px solid rgba(255,255,255,.18)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn:disabled{opacity:.42;cursor:not-allowed}

.status{margin:13px 2px 0;font-size:.88rem;color:#9FC4C1;min-height:2.4em}
.alert{
  display:flex;gap:9px;margin-top:12px;padding:10px 12px;border-radius:10px;
  background:rgba(255,179,57,.13);border:1px solid rgba(255,179,57,.42);color:#FFD38C;font-size:.85rem;line-height:1.45;
}
.alert svg{width:16px;height:16px;flex:none;margin-top:2px}
.alert[hidden]{display:none}

.hero-points{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.hero-points li{display:flex;gap:9px;align-items:flex-start;color:#BFDCD9;font-size:.95rem;margin:0}
.hero-points svg{width:17px;height:17px;flex:none;margin-top:4px;color:var(--aqua)}

/* ---------- sections ---------- */
main section{padding:52px 0}
main section+section{border-top:1px solid var(--line)}
.section-head{max-width:var(--measure);margin-bottom:26px}
.section-head p{color:var(--ink-2);margin-bottom:0}

.grid{display:grid;gap:18px}
@media(min-width:640px){.grid-2{grid-template-columns:repeat(2,1fr)}}
@media(min-width:860px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card p{color:var(--ink-2);font-size:.96rem}

.card-icon{
  width:42px;height:42px;border-radius:11px;flex:none;
  background:#E3F2F0;color:var(--deep-3);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.card-icon svg{width:22px;height:22px}
.card-icon.amber{background:#FFF1DC;color:#B96E10}

/* steps: a real sequence, so numbers are earned */
.steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;gap:2px}
.steps li{
  counter-increment:s;display:grid;grid-template-columns:38px 1fr;gap:16px;
  padding:18px 0;border-top:1px solid var(--line);margin:0;
}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{
  content:counter(s);font:500 1rem/34px var(--font-meter);color:var(--deep-3);
  width:34px;height:34px;text-align:center;border:1px solid var(--line);border-radius:50%;background:#fff;
}
.steps h3{margin-bottom:.2em}
.steps p{margin:0;color:var(--ink-2);font-size:.96rem;max-width:58ch}

.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
@media(min-width:700px){.stats{grid-template-columns:repeat(4,1fr)}}
.stats div{background:var(--card);padding:18px}
.stats b{display:block;font:600 1.5rem/1.2 var(--font-head);color:var(--deep)}
.stats span{font-size:.88rem;color:var(--ink-3)}

.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:.94rem}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}
thead th{background:#EDF4F3;font-family:var(--font-head);font-weight:600;font-size:.9rem}
tbody tr:last-child td{border-bottom:0}
td:first-child,th:first-child{font-weight:600}
.yes{color:var(--aqua-dim);font-weight:600}

details.faq{border-bottom:1px solid var(--line);padding:2px 0}
details.faq summary{
  cursor:pointer;list-style:none;padding:16px 34px 16px 0;position:relative;
  font-family:var(--font-head);font-weight:600;font-size:1.02rem;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"";position:absolute;right:8px;top:24px;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform .18s ease;
}
details.faq[open] summary::after{transform:rotate(-135deg)}
details.faq .answer{padding:0 0 18px;max-width:var(--measure);color:var(--ink-2)}
details.faq .answer p:last-child{margin-bottom:0}

.cta{background:var(--deep);color:#fff;border-radius:var(--radius);padding:34px 26px;text-align:center}
.cta h2{color:#fff}
.cta p{color:#A9CDCA;max-width:52ch;margin:0 auto 20px}
.btn-link{display:inline-block;background:var(--aqua);color:#042127;text-decoration:none;font:600 1rem var(--font-head);padding:14px 26px;border-radius:11px}
.btn-link:hover{background:#2AF3D4;color:#042127}

.callout{border-left:3px solid var(--amber);background:#FFF8EC;padding:14px 18px;border-radius:0 10px 10px 0;max-width:var(--measure)}
.callout p:last-child{margin-bottom:0}

.link-list{list-style:none;padding:0;display:grid;gap:14px}
.link-list li{margin:0;display:flex;gap:14px;align-items:flex-start}
.link-list a{font-family:var(--font-head);font-weight:600;text-decoration:none}
.link-list p{margin:.2em 0 0;color:var(--ink-2);font-size:.94rem}
.link-icon{width:38px;height:38px;border-radius:10px;flex:none;background:#E3F2F0;color:var(--deep-3);
  display:flex;align-items:center;justify-content:center;margin-top:2px}
.link-icon svg{width:19px;height:19px}

.breadcrumb{font-size:.86rem;color:var(--ink-3);padding:16px 0 0}
.breadcrumb a{color:var(--ink-3)}

.page-head{padding:34px 0 8px}
.page-head h1{margin-bottom:.25em}

form .field{gap:6px;margin-bottom:16px}
form label{font-size:.92rem;font-weight:600;color:var(--ink)}
input[type=text],input[type=email],select,textarea{
  width:100%;font:inherit;font-size:1rem;padding:11px 13px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);
}
textarea{min-height:150px;resize:vertical}
.btn-solid{background:var(--deep);color:#fff;font:600 1rem var(--font-head);border:0;border-radius:11px;padding:14px 26px;cursor:pointer}
.btn-solid:hover{background:var(--deep-2)}

.site-foot{background:var(--deep);color:#9FC4C1;margin-top:0;padding:40px 0 28px;font-size:.93rem}
.foot-grid{display:grid;gap:26px}
@media(min-width:760px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.site-foot h4{color:#fff;font-size:.95rem;margin-bottom:.7em}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:.45em}
.site-foot a{color:#9FC4C1;text-decoration:none}
.site-foot a:hover{color:#fff;text-decoration:underline}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;font-size:.85rem;color:#7FA5A2}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}