:root {
  --color-primary: #1d4ed8;
  --color-secondary: #16a34a;
  --color-background: #ffffff;
  --color-text-primary: #111827;
  --color-text-secondary: #6b7280;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-background);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
}

body.is-sold-out {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

.hero {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  text-align: center;
}

.hero-headline {
  margin: 0 0 28px;
  color: var(--color-text-primary);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.3;
}

.hero-headline-highlight {
  color: var(--color-primary);
}

.hero-image-wrap {
  margin-bottom: 32px;
  overflow: hidden;
  border-radius: 10px;
}

.hero-image {
  width: 100%;
  height: auto;
}

.vet-question {
  max-width: 400px;
  margin: 0 auto;
  padding: 28px 24px 24px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
}

.vet-question-title {
  margin: 0 0 18px;
  color: var(--color-text-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.vet-btn-group {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.vet-btn {
  display: inline-flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  max-width: 160px;
  min-height: 54px;
  padding: 14px 0;
  gap: 8px;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.vet-btn:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-primary) 35%, transparent);
  outline-offset: 3px;
}

.vet-btn-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.vet-btn-yes {
  background: var(--color-secondary);
  color: #ffffff;
}

.vet-btn-yes:hover {
  background: #15803d;
  transform: translateY(-1px);
}

.vet-btn-no {
  background: #ffffff;
  color: var(--color-text-primary);
  border: 2px solid #d1d5db;
}

.vet-btn-no:hover {
  border-color: #9ca3af;
  transform: translateY(-1px);
}

.vet-btn.is-disabled,
.vet-btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.58;
  pointer-events: none;
  transform: none;
}

.vet-btn.is-submitting {
  cursor: wait;
  opacity: 1;
  pointer-events: none;
  transform: translateY(0);
  filter: saturate(0.9);
}

.vet-btn.is-submitting .vet-btn-icon {
  animation: quiz-button-pulse 0.8s ease-in-out infinite alternate;
}

@keyframes quiz-button-pulse {
  from {
    opacity: 0.55;
    transform: scale(0.92);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.footer {
  padding: 20px;
  text-align: center;
}

.footer-text {
  max-width: 500px;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: 0.72rem;
}

.availability-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
}

.availability-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.72);
}

.availability-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  padding: 30px 26px;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
  text-align: center;
}

.availability-modal-dialog h2 {
  margin: 0 0 10px;
  color: var(--color-text-primary);
  font-size: 1.55rem;
  line-height: 1.2;
}

.availability-modal-dialog p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

@media (min-width: 576px) {
  .hero {
    padding: 60px 20px 80px;
  }

  .hero-headline {
    font-size: 2.1rem;
  }
}

@media (min-width: 1024px) {
  .hero-headline {
    font-size: 2.4rem;
  }
}

@media (max-width: 576px) {
  .hero {
    padding-top: 72px;
  }

  .hero-headline {
    font-size: 27px;
  }
}