/* ==========================================================================
   Purpose FM — marketing site
   Design tokens lifted 1:1 from the app's own constants/theme.js so the
   website reads as the same product, not a reskin.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;0,8..60,700;1,8..60,400;1,8..60,600&family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --black:#0A0A0A;
  --bg:#0A0A0A;
  --surface:#1C1922;
  --surface-raised:#241F2C;
  --border:#332C3D;
  --text:#FFFFFF;
  --text-secondary:#B3B3B3;
  --text-muted:#707070;
  --gold:#D4AF37;
  --gold-soft:#E8CB6E;
  --gold-on:#0A0A0A;
  --gold-hover:#8F7419;
  --purple:#8878C3;
  --navy:#5B76AD;
  --error:#C0463C;

  --serif:'Source Serif 4', Georgia, serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1160px;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }

::selection{ background:var(--gold); color:var(--gold-on); }

:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* subtle brand wash behind everything, matches app's purple-tinted surfaces */
.bg-glow{
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(136,120,195,0.16), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(212,175,55,0.08), transparent 55%),
    var(--black);
}

/* ---------------------------------- eyebrow / micro type ---------------- */
.eyebrow{
  font-family:var(--sans);
  font-size:12px;
  font-weight:700;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--gold);
  display:inline-flex;
  align-items:center;
  gap:9px;
}
.eyebrow::before{
  content:'';
  width:6px; height:6px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 3px rgba(212,175,55,0.18);
}

/* ---------------------------------- nav ---------------------------------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(10,10,10,0.72);
  border-bottom:1px solid var(--border);
}
.site-nav .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand img{
  width:38px; height:38px;
  border-radius:50%;
}
.brand .brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand .brand-name{
  font-family:var(--serif);
  font-weight:600;
  font-size:17px;
  letter-spacing:0.01em;
}
.brand .brand-sub{
  font-size:10.5px;
  letter-spacing:0.09em;
  text-transform:uppercase;
  color:var(--text-muted);
  margin-top:1px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-links a{
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  transition:color .2s ease;
  position:relative;
}
.nav-links a:hover{ color:var(--text); }
.nav-cta{
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--border);
  border-radius:10px;
  width:42px; height:42px;
  color:var(--text);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}

/* ---------------------------------- buttons ------------------------------ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--sans);
  font-size:14.5px;
  font-weight:600;
  padding:13px 24px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{
  background:var(--gold);
  color:var(--gold-on);
  box-shadow:0 0 0 0 rgba(212,175,55,0.0);
}
.btn-primary:hover{
  background:var(--gold-soft);
  box-shadow:0 8px 30px -8px rgba(212,175,55,0.55);
}
.btn-outline{
  background:transparent;
  border-color:var(--border);
  color:var(--text);
}
.btn-outline:hover{ border-color:var(--gold); color:var(--gold); }
.btn-sm{ padding:10px 18px; font-size:13.5px; }
.btn-block{ width:100%; }

/* ---------------------------------- hero --------------------------------- */
.hero{
  position:relative;
  padding:96px 0 60px;
}
.hero .wrap{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
.hero-copy h1{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(38px, 5vw, 62px);
  line-height:1.05;
  letter-spacing:-0.01em;
  margin:18px 0 22px;
}
.hero-copy h1 em{
  font-style:italic;
  color:var(--gold);
}
.hero-copy p.lede{
  font-size:17.5px;
  line-height:1.65;
  color:var(--text-secondary);
  max-width:480px;
  margin:0 0 34px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:38px;
}
.hero-meta{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
}
.hero-meta .stat b{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  color:var(--text);
}
.hero-meta .stat span{
  font-size:12px;
  color:var(--text-muted);
  text-transform:uppercase;
  letter-spacing:0.06em;
}

/* ---- signature element: the tuner dial ---- */
.dial-card{
  background:linear-gradient(180deg, var(--surface-raised), var(--surface));
  border:1px solid var(--border);
  border-radius:28px;
  padding:30px 26px 26px;
  position:relative;
  box-shadow:0 30px 80px -30px rgba(0,0,0,0.7);
}
.dial-card::before{
  content:'';
  position:absolute;
  inset:0;
  border-radius:28px;
  padding:1px;
  background:linear-gradient(135deg, rgba(212,175,55,0.35), transparent 40%, rgba(136,120,195,0.25));
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.dial-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:22px;
}
.dial-station{
  display:flex;
  align-items:center;
  gap:10px;
}
.dial-station img{ width:34px; height:34px; border-radius:50%; }
.dial-station b{ font-family:var(--serif); font-size:15px; }
.dial-station span{ display:block; font-size:11px; color:var(--text-muted); }
.live-pill{
  display:flex; align-items:center; gap:6px;
  background:rgba(212,175,55,0.12);
  border:1px solid rgba(212,175,55,0.3);
  color:var(--gold);
  font-size:11px; font-weight:700; letter-spacing:0.06em;
  padding:6px 11px; border-radius:999px;
  text-transform:uppercase;
}
.live-pill::before{
  content:'';
  width:6px; height:6px; border-radius:50%;
  background:var(--gold);
  animation:pulse-dot 1.6s ease-in-out infinite;
}
@keyframes pulse-dot{
  0%,100%{ opacity:1; box-shadow:0 0 0 0 rgba(212,175,55,0.5); }
  50%{ opacity:0.55; box-shadow:0 0 0 5px rgba(212,175,55,0); }
}

.waveform{
  display:flex;
  align-items:flex-end;
  gap:4px;
  height:64px;
  margin:6px 0 20px;
}
.waveform span{
  flex:1;
  height:100%;
  background:linear-gradient(180deg, var(--gold), var(--purple));
  border-radius:3px;
  transform-origin:bottom center;
  animation:bar-bounce 1.2s ease-in-out infinite;
}
@keyframes bar-bounce{
  0%,100%{ transform:scaleY(0.25); }
  50%{ transform:scaleY(1); }
}

.dial-scale{
  position:relative;
  height:46px;
  border-top:1px solid var(--border);
  padding-top:14px;
  margin-bottom:22px;
}
.dial-ticks{
  display:flex;
  justify-content:space-between;
  font-family:var(--serif);
  font-size:12px;
  color:var(--text-muted);
}
.dial-ticks .active{
  color:var(--gold);
  font-weight:600;
  position:relative;
}
.dial-ticks .active::before{
  content:'▲';
  position:absolute;
  top:-22px;
  left:50%;
  transform:translateX(-50%);
  font-size:9px;
  color:var(--gold);
}

.dial-caption{
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:0.1em;
  color:var(--text-muted);
  margin:0 0 10px;
  text-align:center;
}
.dial-presets{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:6px;
}
.dial-presets div{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:10px;
  padding:9px 3px;
  text-align:center;
  font-size:10px;
  color:var(--text-muted);
}
.dial-presets div.on{
  border-color:rgba(212,175,55,0.4);
  color:var(--gold);
  background:rgba(212,175,55,0.07);
}

/* ---------------------------------- ticker -------------------------------- */
.ticker{
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:16px 0;
  overflow:hidden;
  background:var(--surface);
}
.ticker-track{
  display:flex;
  gap:48px;
  width:max-content;
  animation:ticker-scroll 32s linear infinite;
}
.ticker-track span{
  font-family:var(--serif);
  font-style:italic;
  font-size:15px;
  color:var(--text-secondary);
  white-space:nowrap;
}
.ticker-track span b{ color:var(--gold); font-style:normal; font-weight:600; }
@keyframes ticker-scroll{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}

/* ---------------------------------- section shell -------------------------- */
section{ padding:104px 0; }
.section-head{
  max-width:640px;
  margin:0 0 56px;
}
.section-head h2{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.15;
  margin:16px 0 14px;
}
.section-head p{
  color:var(--text-secondary);
  font-size:16px;
  line-height:1.65;
}
.section-alt{ background:var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }

/* ---------------------------------- features / presets --------------------- */
.presets-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:1px;
  background:var(--border);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.features-footnote{
  margin:28px 4px 0;
  color:var(--text-muted);
  font-size:14.5px;
  line-height:1.7;
  max-width:760px;
}
.preset-card{
  background:var(--bg);
  padding:30px 26px;
  transition:background .2s ease;
  position:relative;
}
.preset-card:hover{ background:var(--surface); }
.preset-freq{
  font-family:var(--serif);
  font-size:13px;
  color:var(--gold);
  letter-spacing:0.02em;
  margin-bottom:18px;
  display:block;
}
.preset-icon{
  width:38px; height:38px;
  border-radius:10px;
  background:rgba(212,175,55,0.1);
  border:1px solid rgba(212,175,55,0.25);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:16px;
  color:var(--gold);
}
.preset-icon svg{ width:18px; height:18px; }
.preset-card h3{
  font-family:var(--sans);
  font-size:16px;
  font-weight:600;
  margin:0 0 8px;
}
.preset-card p{
  font-size:13.6px;
  line-height:1.55;
  color:var(--text-secondary);
  margin:0;
}

/* ---------------------------------- about --------------------------------- */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:start;
}
.about-copy p{
  color:var(--text-secondary);
  font-size:15.5px;
  line-height:1.75;
  margin:0 0 18px;
}
.quote-block{
  border-left:3px solid var(--gold);
  background:var(--surface);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  padding:22px 26px;
  margin:28px 0;
}
.quote-block p{
  font-family:var(--serif);
  font-style:italic;
  font-size:19px;
  color:var(--text);
  margin:0 0 8px;
}
.quote-block span{
  font-size:12.5px;
  color:var(--gold);
  font-weight:600;
  letter-spacing:0.02em;
}
.fact-row{
  display:flex;
  gap:14px;
  margin-top:32px;
  flex-wrap:wrap;
}
.fact-chip{
  border:1px solid var(--border);
  border-radius:999px;
  padding:9px 16px;
  font-size:12.5px;
  color:var(--text-muted);
}
.fact-chip b{ color:var(--text); font-weight:600; }

.values-list{ display:flex; flex-direction:column; gap:0; }
.value-row{
  display:grid;
  grid-template-columns:110px 1fr;
  gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--border);
}
.value-row:first-child{ padding-top:0; }
.value-row:last-child{ border-bottom:none; }
.value-row .value-name{
  font-family:var(--serif);
  font-size:17px;
  color:var(--gold);
}
.value-row p{
  margin:0;
  font-size:14.3px;
  line-height:1.6;
  color:var(--text-secondary);
}

/* ---------------------------------- download / CTA -------------------------- */
.cta-band{
  background:linear-gradient(120deg, #171018, #241f2c 55%, #17141c);
  border:1px solid var(--border);
  border-radius:32px;
  padding:64px 56px;
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:40px;
  align-items:center;
}
.cta-band::after{
  content:'';
  position:absolute;
  right:-120px; top:-120px;
  width:340px; height:340px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(212,175,55,0.22), transparent 70%);
}
.cta-band h2{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(26px,3vw,36px);
  margin:0 0 14px;
  line-height:1.15;
}
.cta-band p{
  color:var(--text-secondary);
  font-size:15.5px;
  max-width:420px;
  margin:0 0 28px;
}
.store-badges{ display:flex; gap:12px; flex-wrap:wrap; }
.store-badge{
  display:flex; align-items:center; gap:10px;
  background:var(--black);
  border:1px solid var(--border);
  border-radius:12px;
  padding:11px 18px;
  transition:border-color .2s ease, transform .2s ease;
}
.store-badge:hover{ border-color:var(--gold); transform:translateY(-2px); }
.store-badge svg{ width:22px; height:22px; color:var(--gold); }
.store-badge .label span{ display:block; font-size:9.5px; color:var(--text-muted); text-transform:uppercase; letter-spacing:0.06em; }
.store-badge .label b{ font-size:14px; }
.cta-note{ font-size:12px; color:var(--text-muted); margin-top:16px; }
.cta-visual{
  display:flex;
  align-items:center;
  justify-content:center;
}
.cta-coin{
  width:200px; height:200px;
  border-radius:50%;
  position:relative;
  animation:coin-float 5s ease-in-out infinite;
}
.cta-coin img{ width:100%; height:100%; border-radius:50%; box-shadow:0 20px 60px -12px rgba(212,175,55,0.4); }
@keyframes coin-float{
  0%,100%{ transform:translateY(0) rotate(0deg); }
  50%{ transform:translateY(-14px) rotate(3deg); }
}

/* ---------------------------------- contact -------------------------------- */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
#trust .contact-grid{ grid-template-columns:repeat(4,1fr); }
@media (max-width: 980px){
  #trust .contact-grid{ grid-template-columns:repeat(2,1fr); }
}
.contact-card{
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px;
  background:var(--surface);
  transition:border-color .2s ease, transform .2s ease;
}
.contact-card:hover{ border-color:rgba(212,175,55,0.35); transform:translateY(-3px); }
.contact-card .preset-icon{ margin-bottom:20px; }
.contact-card h3{ font-size:15px; margin:0 0 6px; font-weight:600; }
.contact-card p, .contact-card a{
  font-size:14px; color:var(--text-secondary); margin:0; word-break:break-word;
}
.contact-card a:hover{ color:var(--gold); }

/* ---------------------------------- footer --------------------------------- */
footer{
  border-top:1px solid var(--border);
  padding:64px 0 32px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  color:var(--text-muted);
  font-size:13.5px;
  line-height:1.6;
  max-width:280px;
  margin:16px 0 0;
}
.footer-col h4{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--text-muted);
  margin:0 0 18px;
  font-weight:600;
}
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col a{
  font-size:14px;
  color:var(--text-secondary);
  transition:color .2s ease;
}
.footer-col a:hover{ color:var(--gold); }
.footer-bottom{
  border-top:1px solid var(--border);
  padding-top:26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
}
.footer-bottom p{ font-size:12.5px; color:var(--text-muted); margin:0; }
.footer-bottom .legal-links{ display:flex; gap:20px; }
.footer-bottom .legal-links a{ font-size:12.5px; color:var(--text-muted); }
.footer-bottom .legal-links a:hover{ color:var(--gold); }

/* ---------------------------------- legal pages ----------------------------- */
.legal-hero{
  padding:74px 0 40px;
  border-bottom:1px solid var(--border);
}
.legal-hero h1{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(30px,4vw,44px);
  margin:16px 0 10px;
}
.legal-hero .updated{ font-size:13px; color:var(--text-muted); }
.legal-body{ padding:56px 0 100px; }
.legal-layout{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:56px;
  align-items:start;
}
.legal-toc{
  position:sticky;
  top:100px;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:20px;
  background:var(--surface);
}
.legal-toc h4{
  font-size:11px; text-transform:uppercase; letter-spacing:0.08em;
  color:var(--text-muted); margin:0 0 14px;
}
.legal-toc ul{ display:flex; flex-direction:column; gap:11px; }
.legal-toc a{ font-size:13.5px; color:var(--text-secondary); }
.legal-toc a:hover{ color:var(--gold); }
.legal-content h2{
  font-family:var(--serif);
  font-size:24px;
  font-weight:600;
  margin:44px 0 14px;
  padding-top:14px;
  scroll-margin-top:100px;
}
.legal-content h2:first-child{ margin-top:0; }
.legal-content p{
  color:var(--text-secondary);
  font-size:15.2px;
  line-height:1.75;
  margin:0 0 16px;
}
.legal-content ul{
  margin:0 0 16px;
  padding-left:0;
}
.legal-content ul li{
  position:relative;
  padding-left:22px;
  color:var(--text-secondary);
  font-size:15.2px;
  line-height:1.7;
  margin-bottom:10px;
}
.legal-content ul li::before{
  content:'—';
  position:absolute; left:0; color:var(--gold);
}
.legal-content strong{ color:var(--text); font-weight:600; }
.legal-callout{
  border:1px solid rgba(212,175,55,0.3);
  background:rgba(212,175,55,0.06);
  border-radius:var(--radius-md);
  padding:18px 20px;
  margin:22px 0;
}
.legal-callout p{ color:var(--text); font-size:14.3px; margin:0; }

/* ---------------------------------- responsive ------------------------------ */
@media (max-width: 980px){
  .hero .wrap{ grid-template-columns:1fr; }
  .hero-copy p.lede{ max-width:none; }
  .about-grid{ grid-template-columns:1fr; gap:48px; }
  .presets-grid{ grid-template-columns:repeat(2,1fr); }
  .dial-presets{ grid-template-columns:repeat(3,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .cta-band{ grid-template-columns:1fr; padding:44px 30px; text-align:center; }
  .cta-visual{ order:-1; }
  .store-badges{ justify-content:center; }
  .footer-top{ grid-template-columns:1fr 1fr; }
  .legal-layout{ grid-template-columns:1fr; }
  .legal-toc{ position:static; }
}
@media (max-width: 760px){
  .nav-links{
    position:fixed; inset:76px 0 0 0; height:calc(100vh - 76px);
    background:var(--bg); flex-direction:column; justify-content:flex-start;
    padding:36px 28px; gap:22px; transform:translateX(100%);
    transition:transform .3s ease; border-top:1px solid var(--border);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:18px; }
  .nav-toggle{ display:flex; }
  .nav-cta .btn-outline{ display:none; }
  section{ padding:72px 0; }
  .presets-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; gap:32px; }
  .hero{ padding:56px 0 40px; }
  .value-row{ grid-template-columns:1fr; gap:6px; }
}