* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f4f5f9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: 24px;
}

.wrapper {
  width: 100%;
  max-width: 960px;
}

.panel {
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(20, 20, 40, 0.06);
  padding: 56px 48px;
  text-align: center;
}

.logo {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo-ava {
  color: #6c5ce7;
}

.logo-talk {
  color: #1b1f2a;
}

.subtitle {
  margin-top: 12px;
  color: #6b7280;
  font-size: 1.05rem;
}

.card-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  position: relative;
  display: block;
  text-align: left;
  background: #f9f9fc;
  border: 1px solid #e7e7ef;
  border-radius: 16px;
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(108, 92, 231, 0.15);
  border-color: #6c5ce7;
}

.card-icon {
  font-size: 1.8rem;
}

.card-title {
  margin-top: 14px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1b1f2a;
}

.card-desc {
  margin-top: 6px;
  color: #6b7280;
  font-size: 0.95rem;
}

.card-arrow {
  position: absolute;
  top: 24px;
  right: 24px;
  color: #6c5ce7;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

.card-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.card-disabled:hover {
  transform: none;
  box-shadow: none;
  border-color: #e7e7ef;
}

.card-disabled .card-arrow {
  display: none;
}