*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  color: var(--color-slate-700);
  background: linear-gradient(-45deg, var(--color-slate-100), var(--color-slate-300), var(--color-slate-400), var(--color-slate-500));
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
}

.welcome {
  width: min(820px, 100%);
  background: var(--color-white);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.welcome-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  background: var(--color-slate-700);
  color: var(--color-white);
}

.welcome-header .logos {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.welcome-header .logos a {
  display: flex;
  align-items: center;
  line-height: 0;
}

.welcome-header .logos img {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.95;
  transition: opacity 0.2s ease;
}

.welcome-header .logos a:hover img,
.welcome-header .logos a:focus-visible img {
  opacity: 1;
}

.welcome-header .logos a:focus-visible {
  outline: 2px solid var(--color-blue-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.welcome-header .brand {
  text-align: right;
}

.welcome-header .brand h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.welcome-header .brand p {
  margin: 4px 0 0;
  font-size: 0.85rem;
  color: var(--color-slate-300);
}

.welcome-body {
  padding: 28px;
}

.welcome-body > p {
  margin: 0 0 22px;
  color: var(--color-slate-650);
  line-height: 1.5;
}

.options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--color-slate-300);
  border-radius: 12px;
  background: var(--color-white);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.card:active { transform: translateY(0); }

.card:focus-visible {
  outline: 3px solid var(--color-blue-500);
  outline-offset: 3px;
}

.card.primary {
  border-color: var(--color-blue-500);
  background: linear-gradient(135deg, var(--color-blue-50) 0%, var(--color-white) 100%);
}

.card.primary .icon {
  background: var(--color-blue-700);
  color: var(--color-white);
}

.card.primary .go {
  background: var(--color-blue-700);
}

.card.primary:hover .go {
  background: var(--color-blue-800);
}

.card .info {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.card .icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-slate-100);
  color: var(--color-slate-650);
  flex-shrink: 0;
  font-size: 1.1rem;
}

.card .text h2 {
  margin: 0 0 4px;
  font-size: 1.05rem;
  color: var(--color-slate-900);
}

.card .text span {
  display: block;
  font-size: 0.9rem;
  color: var(--color-slate-650);
  line-height: 1.4;
}

.card .go {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-slate-650);
  color: var(--color-white);
  flex-shrink: 0;
  font-size: 0.85rem;
  transition: background 0.2s ease;
}

.redirect-panel {
  margin-top: 24px;
  padding: 16px 18px;
  border-radius: 10px;
  background: var(--color-slate-100);
  border: 1px solid var(--color-slate-300);
}

.redirect-panel.is-cancelled {
  background: var(--color-blue-50);
  border-color: var(--color-blue-500);
}

.redirect-panel .redirect-note {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--color-slate-650);
  display: flex;
  align-items: center;
  gap: 8px;
}

.redirect-panel .redirect-note strong {
  color: var(--color-slate-900);
  font-variant-numeric: tabular-nums;
}

.progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--color-slate-300);
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-blue-500), var(--color-blue-700));
  transform-origin: left center;
  transition: transform 1s linear;
}

.btn-cancel {
  appearance: none;
  border: 1px solid var(--color-slate-400);
  background: var(--color-white);
  color: var(--color-slate-700);
  font: inherit;
  font-size: 0.85rem;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.btn-cancel:hover {
  background: var(--color-slate-100);
  border-color: var(--color-slate-500);
}

.btn-cancel:focus-visible {
  outline: 3px solid var(--color-blue-500);
  outline-offset: 2px;
}

.btn-cancel[hidden] { display: none; }

@media (min-width: 700px) {
  .options { grid-template-columns: 1fr 1fr; }
  .card.primary { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .welcome-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px;
  }

  .welcome-header .brand { text-align: left; }

  .welcome-body { padding: 20px; }

  .card { padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  body { animation: none; }
  .card, .progress-bar, .welcome-header .logos img { transition: none; }
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}