:root {
  --font-serif: "Zen Old Mincho", serif;
  --font-sans: "Noto Sans JP", sans-serif;
  --font-en: "Cinzel", serif;
  --font-num: "Inter", sans-serif;

  --color-bg: #fcfbf9;
  --color-text: #2c2c2c;
  --color-primary: #bfa588;
  --color-secondary: #8c8c8c;
  --color-white: #ffffff;
  --color-dark: #1a1a1a;
  --color-accent: #d4af37;

  --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 20px 50px -10px rgba(0, 0, 0, 0.1);
  
  --radius-md: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* 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(252, 251, 249, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--color-dark);
}

.nav a {
  text-decoration: none;
  color: var(--color-text);
  margin-left: 30px;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.nav a:hover {
  color: var(--color-primary);
}

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

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/assets/hero.png');
  background-size: cover;
  background-position: center;
  z-index: -1;
  filter: brightness(0.7);
  transform: scale(1.05); /* Slight zoom for parallax potentially */
  transition: transform 10s ease;
}

.hero:hover .hero-bg {
  transform: scale(1);
}

.hero-content {
  text-align: center;
  margin-top: 60px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s ease forwards 0.5s;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 400;
  line-height: 1.4;
  margin-bottom: 20px;
  letter-spacing: 0.1em;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-family: var(--font-en);
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  margin-bottom: 40px;
  font-weight: 300;
  text-transform: uppercase;
  opacity: 0.9;
}

.btn-primary {
  display: inline-block;
  padding: 15px 40px;
  background-color: var(--color-white);
  color: var(--color-dark);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 500;
  border-radius: 50px;
  transition: all 0.3s ease;
  letter-spacing: 0.1em;
}

.btn-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* Sections General */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 100px 0;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 10px;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.section-desc {
  text-align: center;
  color: var(--color-secondary);
  margin-bottom: 60px;
  font-size: 0.95rem;
}

/* Plans Grid */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.plan-card {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid rgba(0,0,0,0.02);
  display: flex;
  flex-direction: column;
}

.plan-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.plan-card.featured {
  border: 2px solid var(--color-primary);
  background: #fffcf8;
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  padding: 5px 15px;
  font-size: 0.8rem;
  border-radius: 20px;
  letter-spacing: 0.1em;
}

.plan-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 30px;
  text-align: center;
  color: var(--color-dark);
}

.plan-details {
  margin-bottom: 30px;
  flex-grow: 1;
}

.plan-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid #eee;
  padding-bottom: 8px;
}

.plan-row.mt-4 {
  margin-top: 20px;
}

.p-label {
  font-size: 0.9rem;
  color: var(--color-secondary);
}

.p-price {
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-dark);
}

.tax {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-secondary);
  margin-left: 2px;
}

.plan-note {
  font-size: 0.8rem;
  color: var(--color-secondary);
  text-align: right;
  margin-top: 5px;
}

.plan-info {
  background: #f5f5f5;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 20px;
  font-size: 0.8rem;
  color: var(--color-text);
  text-align: center;
}

.btn-book {
  width: 100%;
  padding: 12px;
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s;
  font-family: var(--font-sans);
}

.btn-book:hover {
  background: var(--color-primary);
}

.btn-book.secondary {
  background: transparent;
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary);
}

.btn-book.secondary:hover {
  border-color: var(--color-dark);
  color: var(--color-dark);
}

/* System Section */
.system-section {
  background-color: #f7f7f7;
}

.system-box {
  background: var(--color-white);
  padding: 60px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.section-title-sm {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  margin-bottom: 40px;
}

.system-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

.system-item {
  flex: 1;
  min-width: 280px;
  display: flex;
  gap: 20px;
  padding: 20px;
  background: #fafafa;
  border-radius: 8px;
}

.sys-icon {
  font-size: 2rem;
}

.sys-text h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.sys-text p {
  font-size: 0.9rem;
  color: var(--color-text);
}

.system-arrow {
  font-size: 2rem;
  color: var(--color-secondary);
}

.system-note {
  margin-top: 40px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-secondary);
}

/* Access & Footer */
.access-section {
  text-align: center;
}

.btn-insta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 12px 30px;
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 500;
  transition: transform 0.3s;
}

.btn-insta:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(200, 30, 100, 0.3);
}

.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.6);
  padding: 40px 0;
  text-align: center;
  font-size: 0.8rem;
}

/* Animation */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  
  .system-content {
    flex-direction: column;
  }
  
  .system-arrow {
    transform: rotate(90deg);
  }
  
  .header {
    padding: 15px 20px;
  }
  
  .nav {
    display: none; /* Simple hiding for now, sandwich menu would be better but keeping simple */
  }
}