:root{
  --ground:#120c24;
  --ground-2:#1b1340;
  --ground-3:#271a4d;
  --ink:#f3efe6;
  --ink-dim:#b7add8;
  --line:rgba(243,239,230,0.14);
  --line-strong:rgba(243,239,230,0.24);
  --gold:#e7b84e;
  --gold-ink:#1c1206;
  --teal:#59d9bc;
  --violet:#9c86f0;

  --font-display:'Fraunces',Georgia,'Iowan Old Style',serif;
  --font-body:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-data:'Space Mono','SFMono-Regular',Consolas,monospace;

  --maxw:1080px;
  color-scheme: dark;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--ground);
  overflow-x:hidden;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--gold);color:var(--gold-ink);}
a{color:inherit;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- ambient rings backdrop ---------- */
.bg-field{position:fixed;inset:0;overflow:hidden;z-index:0;pointer-events:none;}
.bg-field::before,.bg-field::after{
  content:"";
  position:absolute;
  border-radius:50%;
  filter:blur(64px);
  opacity:0.28;
}
.bg-field::before{
  width:640px;height:640px;
  background:radial-gradient(circle,var(--violet),transparent 70%);
  top:-220px;left:-180px;
}
.bg-field::after{
  width:560px;height:560px;
  background:radial-gradient(circle,var(--teal),transparent 70%);
  bottom:-200px;right:-160px;
}
@media (prefers-reduced-motion:no-preference){
  .bg-field::before{animation:drift1 26s ease-in-out infinite;}
  .bg-field::after{animation:drift2 30s ease-in-out infinite;}
}
@keyframes drift1{0%,100%{transform:translate(0,0);}50%{transform:translate(50px,36px);}}
@keyframes drift2{0%,100%{transform:translate(0,0);}50%{transform:translate(-46px,-28px);}}

/* ---------- header ---------- */
.site-header{position:relative;z-index:1;padding:26px 0 4px;}
.header-inner{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;}
.logo{
  font-family:var(--font-display);
  font-size:1.3rem;
  font-weight:600;
  text-decoration:none;
  display:flex;align-items:center;gap:9px;
}
.tagline{margin:0;color:var(--ink-dim);font-size:0.88rem;}

/* ---------- hero ---------- */
.hero{position:relative;z-index:1;text-align:center;padding:34px 20px 8px;}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(2rem,4.4vw,3rem);
  margin:0 0 14px;
  font-weight:600;
  letter-spacing:-0.01em;
  text-wrap:balance;
}
.accent{color:var(--gold);}
.hero-sub{
  color:var(--ink-dim);
  max-width:520px;
  margin:0 auto 34px;
  font-size:1.05rem;
}

/* ---------- player card ---------- */
.player-card{
  max-width:500px;
  margin:0 auto;
  background:linear-gradient(180deg,var(--ground-2),var(--ground-3));
  border:1px solid var(--line);
  border-radius:26px;
  padding:34px 26px 28px;
  box-shadow:0 24px 70px rgba(4,2,16,0.55);
}

.player-visual{position:relative;width:264px;height:264px;margin:0 auto 20px;}
#visualizer{position:absolute;inset:0;width:100%;height:100%;}
.play-btn{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:82px;height:82px;
  border-radius:50%;
  border:none;
  cursor:pointer;
  background:linear-gradient(135deg,var(--gold),var(--teal));
  color:var(--gold-ink);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 32px rgba(231,184,78,0.35);
  transition:transform .15s ease;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.05);}
.play-btn:active{transform:translate(-50%,-50%) scale(0.96);}
.play-btn svg{margin-left:2px;}
.play-btn svg[hidden]{display:none;}

.player-info{margin-bottom:18px;}
.now-playing-label{
  text-transform:uppercase;
  letter-spacing:0.14em;
  font-size:0.7rem;
  color:var(--teal);
  font-weight:700;
  font-family:var(--font-data);
}
.player-info h2{
  font-family:var(--font-display);
  margin:6px 0 6px;
  font-size:1.3rem;
  font-weight:600;
}
.player-info p{margin:0;color:var(--ink-dim);font-size:0.92rem;min-height:2.6em;}

.quick-pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:22px;}
.pill{
  border:1px solid var(--line-strong);
  background:rgba(243,239,230,0.04);
  color:var(--ink);
  padding:7px 14px;
  border-radius:999px;
  font-size:0.85rem;
  font-family:var(--font-data);
  cursor:pointer;
  transition:background .15s ease, transform .1s ease;
}
.pill:hover{background:rgba(243,239,230,0.1);}
.pill.active{
  background:linear-gradient(135deg,var(--gold),var(--teal));
  color:var(--gold-ink);
  border-color:transparent;
  font-weight:700;
}

.player-controls{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  text-align:left;
  margin-bottom:16px;
}
.control-group label{
  display:block;
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--ink-dim);
  margin-bottom:7px;
}
.control-group input[type=range]{width:100%;accent-color:var(--teal);}
.control-group select{
  width:100%;
  padding:9px 10px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(243,239,230,0.06);
  color:var(--ink);
  font-size:0.88rem;
  font-family:var(--font-body);
}
.control-group select option{background:#1c1440;color:var(--ink);}

.headphones-hint{text-align:center;margin:8px 0 0;font-size:0.82rem;color:var(--ink-dim);}

/* ---------- ad slots ---------- */
.ad-slot{
  border:1px dashed var(--line-strong);
  border-radius:14px;
  color:var(--ink-dim);
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0.14em;
  font-size:0.72rem;
  font-weight:700;
  font-family:var(--font-data);
  background:rgba(243,239,230,0.03);
}
.ad-banner{height:90px;margin:38px auto;max-width:728px;}
.ad-incontent{height:250px;margin:10px auto 44px;max-width:336px;}

.ad-corner{
  position:fixed;bottom:18px;right:18px;z-index:50;
  width:216px;min-height:88px;
  border:1px dashed var(--line-strong);
  border-radius:12px;
  background:rgba(18,12,36,0.96);
  color:var(--ink-dim);
  display:flex;align-items:center;justify-content:center;
  font-size:0.72rem;font-weight:700;letter-spacing:0.1em;
  font-family:var(--font-data);
  box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.ad-corner-close{
  position:absolute;top:6px;right:6px;width:22px;height:22px;
  border-radius:50%;border:none;
  background:rgba(243,239,230,0.12);color:var(--ink);
  cursor:pointer;font-size:0.75rem;line-height:1;
}
.ad-corner-close:hover{background:rgba(243,239,230,0.22);}
.ad-corner.hidden{display:none;}

.ad-modal-overlay{
  position:fixed;inset:0;z-index:100;
  background:rgba(6,4,16,0.88);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
}
.ad-modal-overlay[hidden]{display:none;}
.ad-modal{
  position:relative;
  background:var(--ground-2);
  border:1px solid var(--line);
  border-radius:18px;
  padding:20px;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.ad-modal-close{
  position:absolute;top:-14px;right:-14px;width:32px;height:32px;
  border-radius:50%;border:none;
  background:var(--ink);color:var(--ground-2);
  font-size:0.85rem;cursor:pointer;
  box-shadow:0 4px 14px rgba(0,0,0,0.4);
}
.ad-modal-close:hover{background:var(--teal);}
.ad-modal-slot{width:300px;max-width:80vw;height:250px;}

/* ---------- sections ---------- */
.section{position:relative;z-index:1;padding:54px 20px;}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(1.5rem,3vw,2rem);
  text-align:center;
  margin:0 0 8px;
  font-weight:600;
  text-wrap:balance;
}
.section-sub{text-align:center;color:var(--ink-dim);margin:0 0 36px;}

.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:32px;}
.step-card{
  background:rgba(243,239,230,0.04);
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px 22px;
  text-align:center;
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--teal));
  color:var(--gold-ink);
  font-weight:700;font-family:var(--font-data);
  margin-bottom:16px;
}
.step-card h3{font-family:var(--font-display);margin:0 0 8px;font-size:1.12rem;font-weight:600;}
.step-card p{margin:0;color:var(--ink-dim);font-size:0.92rem;}

.freq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:16px;}
.freq-card{
  background:rgba(243,239,230,0.04);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px;text-align:left;cursor:pointer;color:var(--ink);
  transition:transform .15s ease, border-color .15s ease, background .15s ease;
}
.freq-card:hover{transform:translateY(-3px);border-color:var(--teal);}
.freq-card.playing{border-color:var(--gold);background:rgba(231,184,78,0.1);}
.freq-card .fc-top{display:flex;align-items:center;gap:10px;margin-bottom:9px;}
.freq-card .fc-icon{font-size:1.4rem;}
.freq-card .fc-hz{font-weight:700;font-size:1.02rem;font-family:var(--font-data);}
.freq-card .fc-label{display:block;font-size:0.78rem;color:var(--teal);font-weight:700;margin-top:2px;}
.freq-card p{margin:0;font-size:0.85rem;color:var(--ink-dim);}
.freq-card .fc-badge{
  display:inline-block;margin-top:11px;font-size:0.66rem;
  font-family:var(--font-data);
  padding:3px 8px;border-radius:999px;
  background:rgba(243,239,230,0.08);color:var(--ink-dim);
}

.benefits-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;}
.benefit-card{
  background:rgba(243,239,230,0.04);
  border:1px solid var(--line);
  border-radius:16px;padding:24px;text-align:center;
}
.benefit-icon{font-size:1.8rem;display:block;margin-bottom:12px;}
.benefit-card h3{font-family:var(--font-display);margin:0 0 6px;font-size:1.02rem;font-weight:600;}
.benefit-card p{margin:0;color:var(--ink-dim);font-size:0.86rem;}
.disclaimer-inline{
  text-align:center;color:var(--ink-dim);font-size:0.78rem;
  margin-top:28px;max-width:620px;margin-left:auto;margin-right:auto;
}

.faq-list{max-width:740px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq-item{
  background:rgba(243,239,230,0.04);
  border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;
}
.faq-item summary{cursor:pointer;font-weight:700;font-size:0.98rem;list-style:none;font-family:var(--font-display);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";float:right;color:var(--teal);font-weight:800;font-family:var(--font-data);}
.faq-item[open] summary::after{content:"–";}
.faq-item p{color:var(--ink-dim);margin:12px 0 2px;font-size:0.9rem;}

.site-footer{
  position:relative;z-index:1;padding:32px 20px 96px;text-align:center;
  border-top:1px solid var(--line);margin-top:20px;
}
.site-footer p{margin:4px 0;color:var(--ink-dim);font-size:0.85rem;}
.footer-disclaimer{font-size:0.75rem;opacity:0.8;max-width:560px;margin:8px auto 0;}

@media (max-width:760px){
  .steps-grid{grid-template-columns:1fr;}
  .player-controls{grid-template-columns:1fr;}
  .player-visual{width:224px;height:224px;}
}
@media (max-width:480px){
  .ad-corner{right:10px;bottom:10px;width:min(216px,calc(100vw - 20px));}
  .player-card{padding:28px 18px 22px;}
}