:root{
  --asphalt-dark:#0b0c10;
  --line:#f4c542;
  --neon:#3ee6b0;
  --danger:#ff4d5e;
  --glass:rgba(255,255,255,0.06);
  --ink:#eef0f4;
  --muted:#8b93a7;
}
*{box-sizing:border-box;}
html,body{
  margin:0;min-height:100%;
  background:var(--asphalt-dark);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
}
a{color:var(--neon);}
.page{
  position:relative;
  max-width:460px;margin:0 auto;padding:20px 24px 64px;
  display:flex;flex-direction:column;gap:18px;
}
.page::before{
  content:"";
  position:absolute;
  top:-140px;left:50%;
  width:360px;height:360px;
  transform:translateX(-50%);
  background:radial-gradient(circle, rgba(62,230,176,.16), transparent 70%);
  pointer-events:none;
  z-index:-1;
}
.brand{
  font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.15;
  color:var(--ink);text-decoration:none;display:inline-block;
}
.brand .accent{color:var(--neon);}
.brand:hover{opacity:.9;}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;}

.auth-avatar{
  width:38px;height:38px;flex:none;border-radius:50%;
  background:var(--glass);border:1px solid rgba(255,255,255,.14);
  color:var(--ink);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;padding:0;
  transition:border-color .15s ease, color .15s ease, box-shadow .2s ease;
}
.auth-avatar:hover{border-color:var(--neon);color:var(--neon);box-shadow:0 0 12px rgba(62,230,176,.35);}

.sheet-overlay{
  position:fixed;inset:0;
  display:flex;align-items:flex-end;justify-content:center;
  background:rgba(0,0,0,0);
  transition:background .25s ease;
  z-index:50;
}
.sheet-overlay.hidden{display:none;}
.sheet-overlay.open{background:rgba(0,0,0,.55);}
.sheet{
  width:100%;max-width:460px;
  background:#14161c;border:1px solid rgba(255,255,255,.1);
  border-radius:20px 20px 0 0;
  padding:10px 20px calc(28px + env(safe-area-inset-bottom));
  transform:translateY(100%);
  transition:transform .28s cubic-bezier(.2,.8,.2,1);
}
.sheet-overlay.open .sheet{transform:translateY(0);}
.sheet-handle{width:36px;height:4px;border-radius:2px;background:rgba(255,255,255,.2);margin:8px auto 18px;}
.sheet-email{font-size:13px;color:var(--muted);margin-bottom:16px;word-break:break-all;}
.sheet-row{width:100%;margin-bottom:10px;}
.sheet-row.secondary{background:transparent;color:var(--ink);border:1px solid rgba(255,255,255,.14);}
h1{font-size:30px;margin:0;letter-spacing:-.02em;line-height:1.15;}
h1 .accent{color:var(--neon);}
p{color:var(--muted);line-height:1.55;margin:0;font-size:15px;}
.card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;padding:20px;
  display:flex;flex-direction:column;gap:14px;
}
label{font-size:12px;color:var(--muted);display:block;margin-bottom:6px;}
input{
  width:100%;font:inherit;color:var(--ink);
  background:rgba(0,0,0,.3);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;padding:12px 14px;
}
button{
  font:inherit;font-weight:700;font-size:16px;
  padding:14px 20px;border-radius:14px;border:none;
  background:var(--neon);color:#07120d;cursor:pointer;
  transition:filter .15s ease, box-shadow .2s ease, transform .15s ease, opacity .2s ease, border-color .15s ease, color .15s ease;
}
button:hover:not(:disabled){filter:brightness(1.06);}
button.secondary{background:transparent;color:var(--ink);border:1px solid rgba(255,255,255,.16);}
button.secondary:hover:not(:disabled){border-color:var(--neon);color:var(--neon);filter:none;}
button:active:not(:disabled){transform:scale(.98);}
button:disabled{opacity:.5;cursor:default;box-shadow:none!important;filter:none;}
button:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.row{display:flex;gap:10px;}
.row button{flex:1;}
.msg{font-size:13px;min-height:16px;}
.msg.err{color:var(--danger);}
.msg.ok{color:var(--neon);}
.price{font-size:34px;font-weight:800;letter-spacing:-.02em;}
.price span{font-size:14px;font-weight:500;color:var(--muted);}
.perks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.perks li{font-size:14px;color:var(--ink);padding-left:26px;position:relative;line-height:1.4;}
.perks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--neon);font-weight:700;}
.fine{font-size:12.5px;color:var(--muted);}

.hero-art{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  aspect-ratio:3/2;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 0 40px rgba(62,230,176,.08);
}
.hero-art svg{display:block;width:100%;height:100%;}
.hero-fade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(11,12,16,.85) 100%);
  pointer-events:none;
}
.cta{
  width:100%;
  font-size:18px;
  padding:18px 20px;
  box-shadow:0 8px 20px rgba(62,230,176,.22);
}
.cta:hover:not(:disabled){
  box-shadow:0 10px 26px rgba(62,230,176,.34);
  transform:translateY(-1px);
}
.msg.center{text-align:center;}

.google-btn{
  width:100%;
  background:#fff;
  color:#1f1f1f;
  display:flex;align-items:center;justify-content:center;gap:10px;
}
.google-btn:hover:not(:disabled){filter:brightness(.96);}
.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:rgba(255,255,255,.1);}
.muted-link{background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;text-decoration:underline;padding:0;}
.center{text-align:center;}
.hidden{display:none!important;}