/* Base styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #f7f7f7;
}

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

/* Layout helpers */
.section {
  padding: 60px 5%;
  background-color: #8f81e0;
}

.section:nth-of-type(even) {
  background-color: #ccc;
}

h1, h2, h3 {
  margin-top: 0;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 5%;
  background-color: #ccc;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #ef1212;
}

.logo {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.05em;
}

.main-nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

.main-nav a:hover {
  color: #e63946;
}

/* Hero section */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  padding: 80px 5%;
  background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.btn-hero {
  display: inline-block;
  padding: 10px 24px;
  background-color: #e63946;
  color: #3a22c2;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-hero:hover {
  background-color: #b71c2b;
  transform: translateY(-1px);
}

.hero-image img {
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Spots section */
.section-spots h2 {
  text-align: center;
  margin-bottom: 30px;
}

.spots-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.spot-card {
  background-color: #f3a1a1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  padding-bottom: 16px;
}

.spot-card img {
  height: 180px;
  width: 100%;
  object-fit: cover;
}

.spot-card h3 {
  padding: 12px 16px 4px;
}

.spot-card p {
  padding: 0 16px 8px;
}

/* Information section */
.section-info h2 {
  text-align: center;
  margin-bottom: 30px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.info-grid h3 {
  margin-bottom: 5px;
}

/* Contact section */
.section-contact h2 {
  text-align: center;
  margin-bottom: 10px;
}

.section-contact p {
  text-align: center;
  margin-bottom: 30px;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fff;
  padding: 24px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font: inherit;
}

/* Submit button with hover effect */
.btn-submit {
  display: inline-block;
  padding: 10px 24px;
  border: none;
  border-radius: 999px;
  background-color: #1d3557;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-submit:hover {
  background-color: #457b9d;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 20px 5%;
  font-size: 0.9rem;
  color: #666;
  background-color: #2e1717;
  border-top: 1px solid #0a411a;
}

/* Responsive design */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-image {
    margin-top: 20px;
  }

  .spots-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .main-nav {
    margin-top: 8px;
  }

  .main-nav a {
    margin-left: 0;
    margin-right: 16px;
  }

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

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

  .hero-content h1 {
    font-size: 2rem;
  }
}