:root {
  color-scheme: light;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --blue-600: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--gray-900);
  background: #ffffff;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  border-bottom: 1px solid var(--gray-200);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
}

.back-link:hover {
  color: var(--gray-900);
}

.back-icon {
  width: 20px;
  height: 20px;
}

.logo {
  height: 56px;
  width: auto;
}

.gallery {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

.gallery-main img,
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
}

.gallery-main {
  height: 420px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.gallery-item {
  position: relative;
  height: 200px;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  text-align: center;
  padding: 12px;
}

.mobile-carousel {
  display: none;
  overflow-x: auto;
  padding: 16px 24px 0;
}

.mobile-carousel-track {
  display: flex;
  gap: 12px;
}

.mobile-carousel-item {
  flex: 0 0 80%;
}

.mobile-carousel-item img {
  width: 100%;
  border-radius: 18px;
  object-fit: cover;
  height: 220px;
}

.container {
  max-width: 1200px;
  margin: 32px auto 80px;
  padding: 0 24px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
}

.main-content h1 {
  margin: 0 0 12px;
  font-size: 32px;
}

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--gray-700);
}

.feature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gray-100);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
}

.feature svg {
  width: 18px;
  height: 18px;
}

.description {
  margin-top: 24px;
  color: var(--gray-700);
  line-height: 1.6;
}

.amenities {
  margin-top: 32px;
}

.amenities h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

.amenities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.amenity-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-700);
  font-size: 14px;
}

.amenity-item svg {
  width: 18px;
  height: 18px;
  color: #10b981;
}

.booking-card {
  position: sticky;
  top: 96px;
  border: 1px solid var(--gray-200);
  border-radius: 24px;
  padding: 24px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.booking-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.booking-card p {
  margin: 0 0 20px;
  color: var(--gray-500);
  line-height: 1.5;
}

.availability-form {
  display: grid;
  gap: 16px;
}

.availability-field {
  display: grid;
  gap: 6px;
}

.availability-field label {
  font-size: 13px;
  color: var(--gray-500);
  font-weight: 600;
}

.availability-input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--gray-900);
}

.availability-input:focus {
  outline: none;
  border-color: var(--gray-300);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.guest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.booking-button {
  border: none;
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--gray-900);
  cursor: pointer;
  transition: background 0.2s ease;
}

.booking-button:hover {
  background: #000;
}

.booking-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.availability-status {
  font-size: 14px;
  margin: 0;
}

.availability-status.loading {
  color: var(--gray-500);
}

.availability-status.success {
  color: #047857;
  font-weight: 600;
}

.availability-status.error {
  color: #dc2626;
}

.hidden {
  display: none;
}

@media (max-width: 980px) {
  .gallery {
    display: none;
  }

  .mobile-carousel {
    display: block;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .booking-card {
    position: static;
  }
}

@media (max-width: 640px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .guest-grid {
    grid-template-columns: 1fr;
  }
}