:root{
  --ds-bg:#f5fbf7;
  --ds-surface:rgba(255,255,255,.92);
  --ds-surface-2:rgba(255,255,255,.78);
  --ds-border:rgba(15,23,42,.10);
  --ds-text:#0f172a;
  --ds-muted:#475569;
  --ds-accent:#86efac;
  --ds-accentText:#1f2937;
  --ds-danger:#fda4af;
  --ds-dangerText:#4c0519;
  --ds-shadow:0 18px 55px rgba(2,6,23,.14);
  --ds-shadow-soft:0 10px 26px rgba(2,6,23,.10);
}
.ds-app{background:var(--ds-bg);color:var(--ds-text);min-height:100vh;}
.ds-muted{color:var(--ds-muted);}
.ds-border{border-color:var(--ds-border);}
.ds-surface{background:var(--ds-surface);border:1px solid var(--ds-border);box-shadow:var(--ds-shadow-soft);backdrop-filter:blur(10px);}
.ds-surface-2{background:var(--ds-surface-2);border:1px solid var(--ds-border);box-shadow:var(--ds-shadow-soft);backdrop-filter:blur(10px);}
.ds-card{background:var(--ds-surface);border:1px solid var(--ds-border);box-shadow:var(--ds-shadow-soft);backdrop-filter:blur(10px);transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;}
.ds-card:hover{box-shadow:var(--ds-shadow);filter:brightness(1.01);}
.ds-card:active{transform:translateY(1px);}
.ds-input{width:100%;background:var(--ds-surface-2);border:1px solid var(--ds-border);border-radius:1.1rem;padding:.55rem .9rem;outline:none;color:var(--ds-text);}
.ds-input::placeholder{color:var(--ds-muted);opacity:.85;}
.ds-input:focus{box-shadow:0 0 0 3px rgba(134,239,172,.22);border-color:rgba(134,239,172,.65);}
select.ds-input{padding-right:2.2rem;}
select.ds-input option{background:var(--ds-bg);color:var(--ds-text);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:800;border-radius:1.05rem;padding:.55rem .9rem;font-size:.82rem;border:1px solid transparent;transition:transform .15s ease,filter .15s ease,box-shadow .15s ease;user-select:none;}
.btn:active{transform:translateY(1px);}
.btn-green{background:var(--ds-accent);color:var(--ds-accentText);border-color:rgba(31,41,55,.16);box-shadow:0 12px 30px rgba(134,239,172,.18);}
.btn-green:hover{filter:brightness(1.02);}
.btn-red{background:var(--ds-danger);color:var(--ds-dangerText);border-color:rgba(76,5,25,.16);box-shadow:0 12px 30px rgba(253,164,175,.12);}
.btn-red:hover{filter:brightness(1.02);}
.btn-ghost{background:transparent;color:var(--ds-text);border-color:var(--ds-border);}
.btn-ghost:hover{filter:brightness(1.02);}
.btn-lg{padding:.85rem 1.1rem;font-size:.9rem;border-radius:1.25rem;}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.animate-fadeUp{animation:fadeUp .35s ease-out both;}
.toast{position:fixed;right:1rem;top:1rem;z-index:9999;padding:.75rem 1rem;border-radius:1rem;background:var(--ds-surface);border:1px solid var(--ds-border);color:var(--ds-text);box-shadow:var(--ds-shadow);}
.prose{color:inherit;}
.prose p{margin:.6rem 0;line-height:1.65;}
.prose a{text-decoration:underline;}
.prose ul{margin:.6rem 0;padding-left:1.2rem;list-style:disc;}
.prose ol{margin:.6rem 0;padding-left:1.2rem;list-style:decimal;}
.prose li{margin:.25rem 0;}
.prose h2,.prose h3,.prose h4{margin:.8rem 0 .4rem;font-weight:800;}
.prose blockquote{margin:.7rem 0;padding:.65rem .9rem;border-left:3px solid rgba(148,163,184,.45);background:rgba(255,255,255,.70);border-radius:.9rem;}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:.92em;background:rgba(148,163,184,.18);padding:.12rem .35rem;border-radius:.55rem;}
.prose pre{background:rgba(2,6,23,.80);color:#e5e7eb;padding:.85rem 1rem;border-radius:1rem;overflow:auto;border:1px solid rgba(255,255,255,.10);}
.prose pre code{background:transparent;padding:0;color:inherit;}
.prose img{border-radius:1rem;}
.clamp-1,.clamp-2{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-1{-webkit-line-clamp:1;}
.clamp-2{-webkit-line-clamp:2;}
.reveal{opacity:0;transform:translateY(10px);}
.reveal.in{opacity:1;transform:translateY(0);transition:opacity .35s ease,transform .35s ease;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important;}.animate-fadeUp{animation:none!important;}}
details summary::-webkit-details-marker{display:none;}
.buy-pop{
  position:fixed;
  left:1rem;
  bottom:1rem;
  z-index:9998;
  width:min(360px,calc(100vw - 2rem));
  background:var(--ds-surface);
  border:1px solid var(--ds-border);
  box-shadow:var(--ds-shadow);
  border-radius:1.25rem;
  padding:.85rem .9rem;
  backdrop-filter:blur(10px);
  display:flex;
  align-items:flex-start;
  gap:.75rem;
  opacity:0;
  transform:translateY(10px);
  pointer-events:none;
  transition:opacity .25s ease, transform .25s ease;
}
.buy-pop.in{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.buy-pop .buy-dot{
  width:.65rem;
  height:.65rem;
  border-radius:999px;
  margin-top:.35rem;
  background:var(--ds-accent);
  box-shadow:0 0 0 4px rgba(134,239,172,.18);
}
.buy-pop .buy-title{
  font-weight:800;
  font-size:.85rem;
  line-height:1.25rem;
  color:var(--ds-text);
}
.buy-pop .buy-sub{
  margin-top:.15rem;
  font-size:.78rem;
  line-height:1.15rem;
  color:var(--ds-muted);
}
.buy-pop a{
  text-decoration:none;
}
.buy-pop a:hover{
  text-decoration:underline;
}