:root {
  --auth-panel-bg: rgba(255, 255, 255, 0.95);
  --auth-panel-accent: rgba(194, 224, 188, 0.45);
}

.auth-shell {
  min-height: calc(100vh - 9rem);
  display: grid;
  place-items: center;
  padding: 1rem 0 2rem;
}

.auth-card {
  width: min(100%, 560px);
  background: var(--auth-panel-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: grid;
  gap: 1.2rem;
  box-shadow: 0 16px 36px rgba(97, 43, 6, 0.12);
}

.auth-intro {
  display: grid;
  gap: 0.6rem;
}

.auth-intro h1 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.1;
}

.auth-copy {
  font-size: 0.98rem;
  color: rgba(97, 43, 6, 0.8);
}

.auth-switch {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.auth-tab {
  border: var(--border-width) solid var(--border-color);
  background: transparent;
  color: var(--text-color);
  padding: 0.7rem 1rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.auth-tab:hover {
  transform: translateY(-1px);
}

.auth-tab.active {
  background: var(--bg-card-green);
}

.auth-form {
  display: none;
  gap: 0.9rem;
  animation: fadeIn 0.25s ease;
}

.auth-form.active {
  display: grid;
}

.auth-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

.auth-form input {
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card-white);
  padding: 0.85rem 1rem;
  color: var(--text-color);
  font: inherit;
}

.auth-form input:focus {
  outline: 2px solid var(--auth-panel-accent);
  outline-offset: 2px;
}

.auth-form button {
  justify-self: start;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .auth-card {
    padding: 1.4rem;
  }
}