:root{
  --bg-start:#071428;
  --bg-end:#0f223f;
  --surface:#10203a;
  --surface-border:#39557f;
  --text:#f8fbff;
  --muted:#c4d4ec;
  --error:#ff8a8a;
  --primary:#3fa7ff;
  --primary-hover:#258fe9;
  --primary-text:#031224;
  --button-bg:#163054;
  --button-border:#4f6c98;
  --focus:#ffd166;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial;
  background:radial-gradient(circle at 20% 10%,#183766 0%,var(--bg-start) 45%,var(--bg-end) 100%);
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100vh;
  padding:20px;
}

.card{
  text-align:center;
  padding:30px 22px;
  width:min(100%,420px);
  border-radius:16px;
  background:rgba(10,22,41,0.88);
  border:1px solid var(--surface-border);
  box-shadow:0 20px 50px rgba(4,10,20,0.35);
}

h1{
  margin:0;
  font-size:1.45rem;
  line-height:1.25;
}

.status{
  margin:12px 0 10px;
  color:var(--muted);
  font-size:0.98rem;
  line-height:1.4;
}

.error{
  margin:0 0 12px;
  color:var(--error);
  font-size:0.98rem;
  font-weight:600;
}

.spinner{
  width:34px;
  height:34px;
  border:3px solid #27456f;
  border-top-color:var(--primary);
  border-radius:50%;
  animation:spin 0.9s linear infinite;
  margin:16px auto;
}

@keyframes spin{
  to{ transform:rotate(360deg); }
}

.buttons{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:10px;
}

.hidden{
  display:none !important;
}

.store{
  display:block;
  padding:13px 12px;
  border-radius:12px;
  background:var(--button-bg);
  border:1px solid var(--button-border);
  color:var(--text);
  text-decoration:none;
  font-size:1rem;
  font-weight:600;
  line-height:1.2;
  transition:background-color 0.15s ease,border-color 0.15s ease,transform 0.15s ease;
}

.store:hover{
  border-color:#6f8dbb;
  background:#1b3a64;
}

.store.primary{
  background:var(--primary);
  border-color:var(--primary);
  color:var(--primary-text);
}

.store.primary:hover{
  background:var(--primary-hover);
  border-color:var(--primary-hover);
}

.store.browser{
  background:linear-gradient(135deg,#f4f9ff 0%,#d9ecff 100%);
  border-color:#8fc8ff;
  color:#08213c;
  box-shadow:0 10px 24px rgba(63,167,255,0.18);
  margin-bottom:6px;
}

.store.browser:hover{
  background:linear-gradient(135deg,#ffffff 0%,#d2e8ff 100%);
  border-color:#a7d5ff;
}

.store.browser.primary{
  background:linear-gradient(135deg,#f4f9ff 0%,#d9ecff 100%);
  border-color:#8fc8ff;
  color:#08213c;
}

.store.browser.primary:hover{
  background:linear-gradient(135deg,#ffffff 0%,#d2e8ff 100%);
  border-color:#a7d5ff;
}

.store.secondary{
  opacity:0.96;
}

.store:focus-visible,
.retry:focus-visible{
  outline:3px solid var(--focus);
  outline-offset:2px;
}

.retry{
  margin-top:12px;
  width:100%;
  padding:11px 12px;
  border-radius:12px;
  border:1px solid #5a77a3;
  background:#1a355c;
  color:var(--text);
  font-size:0.96rem;
  font-weight:600;
  cursor:pointer;
}

.retry:hover{
  background:#22406d;
}

@media (max-width:420px){
  .card{
    padding:24px 16px;
  }
}

@media (prefers-reduced-motion:reduce){
  .spinner{
    animation:none;
  }

  .store,
  .retry{
    transition:none;
  }
}