:root {
  /* Color Palette */
  --color-bg: #f9f8f6; /* 淡い温かみのあるベージュ */
  --color-text: #333333; /* 墨色に近い黒 */
  --color-accent: #6b8e23; /* 落ち着いたオリーブグリーン */
  --color-secondary: #8c8c8c;
  --color-white: #ffffff;
  
  /* Typography */
  --font-base: 'Noto Serif JP', 'Yu Mincho', '游明朝', 'Hiragino Mincho ProN', serif;
  --font-en: 'Cinzel', 'Trajan Pro', 'Didot', serif;
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.8;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.6;
}

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

/* Layout */
.container {
  width: 90%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
}

/* Typography Classes */
.sec-title {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 400;
  text-align: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.sec-subtitle {
  text-align: center;
  font-size: 1rem;
  margin-bottom: 60px;
  color: var(--color-secondary);
}

.text-center {
  text-align: center;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(249, 248, 246, 0.9);
  backdrop-filter: blur(5px);
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-size: 0.9rem;
}

/* Footer */
footer {
  background-color: var(--color-white);
  padding: 60px 0 20px;
  text-align: center;
  border-top: 1px solid #e0e0e0;
}

.footer-logo {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.footer-info {
  font-size: 0.85rem;
  color: var(--color-secondary);
  margin-bottom: 40px;
}

.copyright {
  font-size: 0.75rem;
  color: var(--color-secondary);
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  filter: brightness(0.8);
}

.hero-content {
  text-align: center;
  color: var(--color-white);
}

.hero-title {
  font-size: 3rem;
  font-weight: 300;
  margin-bottom: 20px;
  letter-spacing: 0.1em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* Button */
.btn {
  display: inline-block;
  padding: 15px 40px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  margin-top: 30px;
}

.btn:hover {
  background: var(--color-accent);
  color: var(--color-white);
  opacity: 1;
}

/* Grid & Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.card {
  background: var(--color-white);
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-5px);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-content {
  padding: 30px;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: var(--color-accent);
}

.card-text {
  font-size: 0.9rem;
  color: var(--color-secondary);
}

/* No Image Placeholder */
.no-image {
  width: 100%;
  height: 100%;
  min-height: 200px;
  background-color: #eaeaea;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #999;
  text-align: center;
  padding: 20px;
}

.no-image::before {
  content: 'NO IMAGE';
  font-size: 1.2rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.no-image-caption {
  font-size: 0.8rem;
  color: #666;
  font-family: var(--font-base);
}

/* Page Header for subpages */
.page-header {
  padding: 150px 0 80px;
  text-align: center;
  background-color: var(--color-white);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 1s forwards;
}

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

/* Utilities */
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  header { padding: 15px 20px; }
  .nav-links { display: none; /* シンプル化のためスマホでは非表示かハンバーガー検討 */ }
  .section { padding: 60px 0; }
}