/* aivoicedetector.com . shared stylesheet for May 25 Redesign
   Applies the v1.1 brand book. Linked by every page. */

:root{
  --pitch:#0c0c0d; --pitch-2:#08080a; --carbon:#131316; --slate:#1c1c20;
  --bone:#e7e5e0; --bone-2:#f0eee9; --stone:#8a8780; --stone-2:#a8a59c;
  --rule:rgba(255,255,255,.06); --rule-2:rgba(255,255,255,.10); --rule-strong:rgba(255,255,255,.18);
  --rule-bone:rgba(12,12,13,.08); --rule-bone-2:rgba(12,12,13,.14);
  --lilac:#cdd6ff; --iris:#7a86c7; --ember:#f5b87a; --green:#a8e6b8;
  --ease:cubic-bezier(.22,.61,.36,1); --dur-fast:160ms; --dur:280ms; --dur-slow:520ms;
}
*{box-sizing:border-box}
html{scroll-behavior:auto}
html,body{margin:0;padding:0;background:var(--pitch);color:var(--bone);font-family:'Geist',ui-sans-serif,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"ss01","cv11"}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;padding:0}
::selection{background:var(--lilac);color:var(--pitch)}
/* Accessibility: visible keyboard focus on every interactive element (all pages) */
:focus-visible{outline:2px solid var(--lilac);outline-offset:3px}
:focus:not(:focus-visible){outline:none}
.faq summary:focus-visible{outline:2px solid var(--lilac);outline-offset:4px}
img{max-width:100%;display:block}

/* Tokens */
.acc{color:var(--lilac)}
.acc-iris{color:var(--iris)}
.mono{font-family:'Geist Mono',ui-monospace,monospace;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.label{font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone-2)}
.num{font-variant-numeric:tabular-nums}
.h-display{font-weight:500;letter-spacing:-.042em;line-height:.92;text-wrap:balance}
.h2{font-weight:500;letter-spacing:-.035em;line-height:1.02;text-wrap:balance}
.h3{font-weight:500;letter-spacing:-.02em;line-height:1.2}

/* Nav */
nav.primary{padding:14px clamp(24px,6vw,96px);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:30;background:rgba(12,12,13,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--rule)}
nav.primary .brand{display:inline-flex;align-items:center;gap:11px}
nav.primary .brand .wm{font-weight:500;font-size:21px;letter-spacing:-.025em}
nav.primary .links{display:flex;gap:30px;font-size:14px;color:var(--stone-2)}
nav.primary .links a{transition:color var(--dur-fast) var(--ease);position:relative;padding-bottom:4px}
nav.primary .links a:hover{color:var(--bone)}
nav.primary .links a.active{color:var(--bone)}
nav.primary .links a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--lilac)}
nav.primary .cta{display:flex;gap:10px;align-items:center}
nav.primary .signin{font-size:14px;color:var(--stone-2);padding:8px 12px;transition:color var(--dur-fast) var(--ease)}
nav.primary .signin:hover{color:var(--bone)}
nav.primary .mob{display:none}
nav.primary .mobile-panel{display:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border:1px solid;font-weight:500;font-size:13.5px;letter-spacing:-.005em;transition:all var(--dur-fast) var(--ease);white-space:nowrap;font-family:inherit;cursor:pointer}
.btn-primary{background:var(--bone);color:var(--pitch);border-color:var(--bone)}
.btn-primary:hover{background:#fff;border-color:#fff;transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.02);color:var(--bone);border-color:var(--rule-2)}
.btn-ghost:hover{background:rgba(255,255,255,.05);border-color:var(--rule-strong)}
.btn-bone{background:var(--pitch);color:var(--bone);border-color:var(--pitch)}
.btn-bone-ghost{background:transparent;color:var(--pitch);border-color:var(--rule-bone-2)}
.btn-bone-ghost:hover{background:rgba(12,12,13,.04);border-color:rgba(12,12,13,.3)}

/* Tags */
.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border:1px solid var(--rule);background:rgba(255,255,255,.02);font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-2)}
.tag .dot{width:5px;height:5px;border-radius:50%;background:var(--lilac);box-shadow:0 0 10px var(--lilac);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}

/* Layout primitives */
.section{padding:clamp(56px,5.5vw,88px) clamp(24px,6vw,96px);border-bottom:1px solid var(--rule);position:relative}
.container{max-width:1280px;margin:0 auto}
.section-head{display:flex;flex-direction:column;gap:18px;margin-bottom:48px;max-width:880px}
.section-head .kicker{font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--stone-2);margin-bottom:18px;display:block}
.section-head h2{font-size:clamp(38px,4.8vw,72px);margin:0;max-width:22ch;letter-spacing:-.038em;line-height:1.0}
.section-head .sub{font-size:17px;line-height:1.65;color:var(--stone-2);max-width:56ch;margin:0}

/* Generic hero used across pages */
.page-hero{padding:48px clamp(24px,6vw,96px) 72px;position:relative;overflow:hidden;border-bottom:1px solid var(--rule)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:120px 120px;mask-image:radial-gradient(1200px 800px at 75% 35%,#000 25%,transparent 80%);-webkit-mask-image:radial-gradient(1200px 800px at 75% 35%,#000 25%,transparent 80%);pointer-events:none}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(900px 500px at 90% 10%,rgba(205,214,255,.05),transparent 60%);pointer-events:none}
.page-hero .container{position:relative}
.page-hero h1{font-size:clamp(44px,5vw,84px);margin:24px 0 28px;max-width:18ch;font-weight:500;letter-spacing:-.042em;line-height:.98;text-wrap:balance}
.page-hero .lede{font-size:clamp(17px,1.4vw,20px);line-height:1.55;color:var(--bone);opacity:.78;max-width:560px;margin:0;letter-spacing:-.005em}
.page-hero .cta-row{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}

/* Footer */
footer.site{background:var(--pitch-2);border-top:1px solid var(--rule);padding:64px clamp(24px,6vw,96px) 0}
footer.site .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid var(--rule)}
footer.site .brand-col{max-width:280px}
footer.site .brand-col .lockup{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
footer.site .brand-col .lockup .wm{font-weight:500;font-size:17px;letter-spacing:-.02em}
footer.site .brand-col p{font-size:13.5px;color:var(--stone-2);line-height:1.6;margin:0 0 16px}
footer.site .brand-col .addr{font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--stone);line-height:1.7;margin:0}
footer.site .col{display:flex;flex-direction:column;gap:14px}
footer.site .col .label{margin-bottom:4px}
footer.site .col a{font-size:13px;color:var(--stone-2);transition:color var(--dur-fast) var(--ease);position:relative;display:inline-block;padding-bottom:2px}
footer.site .col a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
footer.site .col a:hover{color:var(--bone)}
footer.site .col a:hover::after{transform:scaleX(1)}
footer.site .bottom{display:flex;justify-content:space-between;align-items:center;padding:18px 0;flex-wrap:wrap;gap:14px;max-width:1280px;margin:0 auto}
footer.site .bottom .copy{font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone)}
footer.site .bottom .status{display:inline-flex;align-items:center;gap:8px}
footer.site .bottom .status .gdot{width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
footer.site .bottom .status .l{font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone-2)}

/* Article reading layout (blog posts, legal pages) */
.article{padding:clamp(48px,5vw,72px) clamp(24px,6vw,96px) clamp(64px,7vw,96px);border-bottom:1px solid var(--rule)}
.article .container{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:200px 1fr;gap:64px}
.article aside{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:14px}
.article aside .l{font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone)}
.article aside .toc{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--rule);margin-top:8px}
.article aside .toc a{font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.04em;color:var(--stone-2);padding:8px 0;border-bottom:1px solid var(--rule);transition:color var(--dur-fast) var(--ease)}
.article aside .toc a:hover{color:var(--bone)}
.article .body{max-width:680px}
.article .kicker-row{font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone-2);margin-bottom:24px;display:flex;gap:14px;flex-wrap:wrap}
.article .kicker-row .acc{color:var(--lilac)}
.article h1{font-size:clamp(38px,4.6vw,64px);margin:0 0 24px;font-weight:500;letter-spacing:-.035em;line-height:1.04;text-wrap:balance;max-width:22ch}
.article .standfirst{font-size:clamp(18px,1.5vw,22px);line-height:1.5;color:var(--bone);opacity:.85;margin:0 0 40px;max-width:36ch}
.article .meta{display:flex;gap:18px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin-bottom:48px;font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--stone-2)}
.article .meta .acc{color:var(--lilac)}
.article .body h2{font-size:clamp(24px,2.4vw,32px);font-weight:500;letter-spacing:-.02em;line-height:1.2;margin:56px 0 20px;text-wrap:balance}
.article .body h3{font-size:clamp(18px,1.7vw,22px);font-weight:500;letter-spacing:-.015em;line-height:1.3;margin:40px 0 14px}
.article .body p{font-size:17px;line-height:1.7;color:var(--bone);opacity:.92;margin:0 0 20px;max-width:64ch}
.article .body p.lede{font-size:19px;opacity:1;margin-bottom:28px}
.article .body ul,.article .body ol{font-size:17px;line-height:1.7;color:var(--bone);opacity:.92;padding-left:24px;margin:0 0 20px;max-width:64ch}
.article .body li{margin-bottom:10px}
.article .body strong{color:var(--bone);font-weight:600}
.article .body a{color:var(--lilac);border-bottom:1px solid rgba(205,214,255,.25);transition:border-color var(--dur-fast) var(--ease)}
.article .body a:hover{border-color:var(--lilac)}
.article .body blockquote{margin:32px 0;padding:24px 28px;border-left:2px solid var(--lilac);background:rgba(205,214,255,.04);font-family:'Newsreader',serif;font-style:italic;font-size:22px;line-height:1.5;color:var(--bone);max-width:64ch}
.article .body code{font-family:'Geist Mono',monospace;font-size:.92em;background:var(--carbon);padding:2px 6px;border:1px solid var(--rule);color:var(--lilac)}
.article .body hr{border:none;border-top:1px solid var(--rule);margin:48px 0}
.article .end-cta{margin-top:64px;padding:32px;border:1px solid var(--rule);background:var(--carbon);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.article .end-cta .copy{font-size:16px;color:var(--bone);max-width:32ch}

/* FAQ accordion */
.faq{border-top:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{padding:22px 0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:17px;font-weight:500;letter-spacing:-.005em;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:'Geist Mono',monospace;font-size:18px;color:var(--stone-2);transition:transform var(--dur) var(--ease)}
.faq details[open] summary::after{content:"×"}
.faq details[open] summary{color:var(--lilac)}
.faq .answer{padding:0 0 24px;font-size:15.5px;line-height:1.7;color:var(--stone-2);max-width:60ch}

/* ──────────── RESPONSIVE: 5 tiers ──────────── */
/* Tiers: <480 small phone . 481-768 phone . 769-1023 tablet . 1024-1599 desktop . 1600+ ultrawide */

/* Safe area for iPhone notch / Android gesture bar */
nav.primary,.section,.page-hero,footer.site,.cover,.hero,.manifesto,.final,.detector,.win-hero,.ext-hero,.article{padding-left:max(clamp(24px,5vw,72px),env(safe-area-inset-left));padding-right:max(clamp(24px,5vw,72px),env(safe-area-inset-right))}
body{padding-bottom:env(safe-area-inset-bottom)}

/* Ultrawide (≥1600px) — let big monitors breathe */
@media (min-width:1600px){
  nav.primary{padding-left:64px;padding-right:64px}
}

/* Tablet landscape and small desktop (≤1180px) — collapse heavy grids */
@media (max-width:1180px){
  .section-head{gap:14px}
  .article .container{grid-template-columns:1fr;gap:40px}
  .article aside{position:static}
  footer.site .container{grid-template-columns:repeat(3,1fr)}
  footer.site .brand-col{grid-column:1/-1;max-width:none}
}

/* Tablet portrait (≤900px) — single-column most layouts */
@media (max-width:900px){
  nav.primary{padding:18px clamp(16px,4vw,32px)}
  nav.primary .links{gap:24px;font-size:13.5px}
  footer.site .container{grid-template-columns:repeat(2,1fr)}
}

/* Phone (≤760px) — hide nav links, show hamburger */
@media (max-width:760px){
  nav.primary .links{display:none}
  nav.primary .signin{display:none}
  nav.primary .mob{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--rule-2);background:rgba(255,255,255,.02);transition:all var(--dur-fast) var(--ease)}
  nav.primary .mob:hover{border-color:var(--rule-strong);background:rgba(255,255,255,.05)}
  nav.primary.open .mob{border-color:var(--lilac);background:rgba(205,214,255,.06)}
  nav.primary .cta .btn{padding:10px 14px;font-size:12.5px}

  /* Hamburger animates to X when open */
  nav.primary .mob svg path{transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);transform-origin:center}
  nav.primary.open .mob svg path:nth-child(1){transform:translateY(4px) rotate(45deg)}
  nav.primary.open .mob svg path:nth-child(2){opacity:0}
  nav.primary.open .mob svg path:nth-child(3){transform:translateY(-4px) rotate(-45deg)}

  /* Backdrop overlay */
  nav.primary::after{content:"";position:fixed;inset:0;background:rgba(8,8,10,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease);z-index:-1}
  nav.primary.open::after{opacity:1;pointer-events:auto}

  /* Mobile menu — full-height sheet: scrollable links, pinned conversion footer */
  nav.primary .mobile-panel{position:fixed;inset:0;height:100vh;height:100svh;background:var(--pitch-2);padding:0;display:flex;flex-direction:column;transform:translateY(-100%);transition:transform var(--dur-slow) var(--ease);overflow:hidden}
  nav.primary.open .mobile-panel{transform:translateY(0)}
  /* header: brand + close */
  nav.primary .mobile-panel .mp-head{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:13px clamp(20px,5vw,28px);border-bottom:1px solid var(--rule)}
  nav.primary .mobile-panel .mp-brand{display:inline-flex;align-items:center;gap:10px}
  nav.primary .mobile-panel .mp-brand .wm{font-weight:500;font-size:18px;letter-spacing:-.025em;color:var(--bone)}
  nav.primary .mobile-panel .mp-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--rule-2);background:rgba(255,255,255,.02);color:var(--bone);transition:all var(--dur-fast) var(--ease)}
  nav.primary .mobile-panel .mp-close:hover{border-color:var(--rule-strong);background:rgba(255,255,255,.05)}
  /* scrollable link list */
  nav.primary .mobile-panel .mp-links{flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:6px clamp(20px,5vw,28px) 16px;display:flex;flex-direction:column}
  nav.primary .mobile-panel .mp-links a{padding:17px 0;border-bottom:1px solid var(--rule);font-size:17px;color:var(--bone);font-weight:500;display:flex;justify-content:space-between;align-items:center;letter-spacing:-.005em;min-height:56px}
  nav.primary .mobile-panel .mp-links a::after{content:"→";color:var(--stone);font-family:'Geist Mono',monospace;font-size:14px;transition:color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}
  nav.primary .mobile-panel .mp-links a:active::after{color:var(--lilac);transform:translateX(3px)}
  nav.primary .mobile-panel .mp-links a.current{color:var(--lilac)}
  nav.primary .mobile-panel .mp-links a.current::after{content:"●";color:var(--lilac);font-size:8px}
  nav.primary .mobile-panel .mp-links a:last-child{border-bottom:none}
  /* pinned conversion footer */
  nav.primary .mobile-panel .mp-foot{flex-shrink:0;border-top:1px solid var(--rule);background:var(--pitch-2);padding:16px clamp(20px,5vw,28px) calc(18px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}
  nav.primary .mobile-panel .mp-foot a{display:flex;align-items:center;justify-content:center;min-height:52px;font-size:16px;font-weight:500;letter-spacing:-.005em}
  nav.primary .mobile-panel .mp-signin{border:1px solid var(--rule-strong);color:var(--bone);background:rgba(255,255,255,.02)}
  nav.primary .mobile-panel .mob-cta{background:var(--bone);color:var(--pitch);border:1px solid var(--bone)}
  nav.primary .mobile-panel .mob-cta:active{background:#fff}

  /* Body scroll lock when menu open */
  body.menu-open{overflow:hidden;touch-action:none}

  .page-hero{padding-top:48px;padding-bottom:64px}
  .page-hero h1{font-size:clamp(32px,8vw,46px);max-width:14ch}
  .page-hero .lede{font-size:16px}

  .section{padding-top:clamp(56px,9vw,80px);padding-bottom:clamp(56px,9vw,80px)}
  .section-head{margin-bottom:40px}

  footer.site{padding-top:48px}
  footer.site .container{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  footer.site .brand-col{max-width:none}
  footer.site .col{gap:12px}
  footer.site .col a{padding:8px 0;font-size:14px}

  .btn{padding:13px 18px;font-size:14px;min-height:44px}
  .tag{font-size:11px;padding:7px 12px}

  /* Article reading: comfortable mobile */
  .article{padding-top:40px;padding-bottom:64px}
  .article h1{font-size:clamp(30px,7vw,42px)}
  .article .standfirst{font-size:17px}
  .article .body p,.article .body ul,.article .body ol{font-size:16px}
  .article .end-cta{padding:24px;flex-direction:column;align-items:flex-start;text-align:left}

  /* FAQ tap targets */
  .faq summary{padding:18px 0;font-size:16px;min-height:56px}
}

/* Small phone (≤480px) — extra tight padding, smaller display type */
@media (max-width:480px){
  nav.primary{padding:14px 16px}
  nav.primary .brand .wm{font-size:18px}
  nav.primary .brand svg{width:24px;height:24px}

  .page-hero{padding-top:36px;padding-bottom:48px}
  .page-hero h1{font-size:clamp(28px,9vw,40px)}

  .section{padding-top:48px;padding-bottom:48px;padding-left:16px;padding-right:16px}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:clamp(26px,7vw,36px)}
  .section-head .kicker{font-size:10px;letter-spacing:.16em}

  .article{padding-left:16px;padding-right:16px}
  .article h1{font-size:clamp(26px,7.5vw,36px)}
  .article .body h2{font-size:clamp(22px,6vw,28px);margin:40px 0 16px}
  .article .body h3{font-size:18px;margin:28px 0 10px}
  .article .body blockquote{margin:24px 0;padding:18px 20px;font-size:18px}

  footer.site{padding-left:16px;padding-right:16px;padding-top:36px}
  footer.site .container{padding-bottom:24px}
  footer.site .bottom{padding:14px 0;flex-direction:column;align-items:flex-start;gap:10px}

  .btn{padding:12px 16px;font-size:13.5px}
  .faq summary{font-size:15px}
  .faq .answer{font-size:14.5px}
}

/* Touch-only devices — generous tap targets */
@media (hover:none) and (pointer:coarse){
  a,button,summary,.btn,.tag{-webkit-tap-highlight-color:rgba(205,214,255,.15)}
  nav.primary .links a{padding:10px 0;min-height:44px;display:inline-flex;align-items:center}
  .faq summary{min-height:56px}
}

/* Beige split sections set 1fr 1.6fr as an inline style (is-this-ai, about-us, pricing); collapse them on tablet/mobile. !important is required to beat the inline declaration. */
@media (max-width:900px){
  .container[style*="1.6fr"]{grid-template-columns:1fr !important;gap:40px !important}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:1ms !important;transition-duration:1ms !important;scroll-behavior:auto !important}
}

/* High contrast / forced colors mode */
@media (forced-colors:active){
  .btn-primary{background:Canvas;color:CanvasText;border:1px solid CanvasText}
  .btn-ghost{background:Canvas;color:CanvasText;border:1px solid CanvasText}
  .tag,.notice,.cell{border:1px solid CanvasText}
}

/* Print */
@media print{
  nav.primary,footer.site,.btn,.cta,.tag,.final{display:none !important}
  body{background:#fff;color:#000}
  .article .body{max-width:none}
  h1,h2,h3{color:#000}
  a{color:#000;text-decoration:underline}
}