:root {
  /* Premium Light Theme Core Colors */
  --bg-main: #f8f9fc; /* Clean Off-white */
  --bg-panel: rgba(255, 255, 255, 0.7); /* Light Glassmorphism panel */
  --bg-panel-hover: rgba(255, 255, 255, 1);

  --text-primary: #111827; /* Near Black */
  --text-secondary: #4b5563; /* Mid Gray */
  --text-muted: #6b7280;

  /* Accents */
  --accent-gold: #b38b22; /* Deeper Champagne Gold for better contrast on light bg */
  --accent-gold-dim: rgba(179, 139, 34, 0.08);
  --accent-glow: 0 4px 15px rgba(179, 139, 34, 0.15);
  --accent-blue: #2563eb;

  /* Borders / Lines */
  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.12);

  /* Geometry & Layout */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  --ds-shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.04);
  --ds-shadow-hover: 0 12px 40px 0 rgba(0, 0, 0, 0.08);
  --ds-blur: blur(16px);
  --nav-height: 80px;

  --content-w: 1200px;
  --content-padding: 24px;
}

/* Base Reset & Fonts */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-main);
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(179, 139, 34, 0.03), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(37, 99, 235, 0.03), transparent 25%);
  background-attachment: fixed;
}

/* Background grid effect - Light Mode */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at center, rgba(0,0,0,1), transparent 70%);
  -webkit-mask-image: radial-gradient(circle at center, rgba(0,0,0,1), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', 'Noto Serif JP', serif;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

ul, ol {
  list-style: none;
}

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

/* =========================================
   Layout Containers
   ========================================= */
.container {
  width: 100%;
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-narrow {
  padding: 80px 0;
}

.section-gray {
  background: rgba(0,0,0,0.02);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

/* =========================================
   Typography
   ========================================= */
.text-gold { color: var(--accent-gold); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.tagline {
  font-family: 'Outfit', sans-serif;
  color: var(--accent-gold);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  display: block;
  margin-bottom: 1rem;
}

.display-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #111827 30%, #4b5563 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.lead-text {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 700px;
}

/* =========================================
   Navigation / Glass Navbar
   ========================================= */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: var(--ds-blur);
  -webkit-backdrop-filter: var(--ds-blur);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  transition: all 0.4s ease;
}

.navbar.scrolled {
  height: 70px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Outfit', serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #e5c158, #b69230);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 2px 10px rgba(229, 193, 88, 0.3);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: width 0.3s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

/* =========================================
   Buttons & Links
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--text-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  background: #1f2937;
}

.btn-ghost {
  background: #fff;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  background: #f3f4f6;
  border-color: #d1d5db;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-gold);
  font-weight: 600;
  font-size: 0.95rem;
}

.link-arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-glow {
  position: absolute;
  top: 40%;
  right: 10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(229, 193, 88, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  filter: blur(60px);
}

/* =========================================
   Glass Panels / Cards (Light Mode)
   ========================================= */
.glass-panel {
  background: var(--bg-panel);
  border: 1px solid #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: var(--ds-blur);
  -webkit-backdrop-filter: var(--ds-blur);
  box-shadow: var(--ds-shadow-glass);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.glass-panel::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    pointer-events: none;
}

.glass-panel:hover {
  background: var(--bg-panel-hover);
  box-shadow: var(--ds-shadow-hover);
  transform: translateY(-2px);
}

.panel-dark {
  background: linear-gradient(135deg, #111827, #1f2937);
  color: #fff;
  border: none;
}
.panel-dark::after {
  display: none;
}
.panel-dark .text-secondary {
  color: #9ca3af;
}
.panel-dark .section-title, .panel-dark h3 {
  color: #fff;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* =========================================
   Article Cards
   ========================================= */
.article-card {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at top right, rgba(179,139,34,0.05), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: rgba(179, 139, 34, 0.3);
  box-shadow: 0 15px 35px rgba(0,0,0,0.06);
}

.article-card:hover::before { opacity: 1; }

.article-card-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge {
  padding: 6px 12px;
  border-radius: 100px;
  background: #f3f4f6;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-weight: 600;
}

.badge-gold {
  background: rgba(179, 139, 34, 0.1);
  border-color: rgba(179, 139, 34, 0.2);
  color: var(--accent-gold);
}

.article-title {
  font-size: 1.4rem;
  margin-bottom: 16px;
  color: var(--text-primary);
  line-height: 1.5;
  font-family: 'Noto Serif JP', serif;
}

.article-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 30px;
  flex: 1;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  margin-top: auto;
}

/* =========================================
   Stats / Metrics
   ========================================= */
.metric-box {
  padding: 24px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--accent-gold);
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.metric-value {
  font-size: 2.5rem;
  font-family: 'Outfit', serif;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1;
}

.metric-label {
  font-size: 0.9rem;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.metric-desc {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* =========================================
   Newsletter / Form
   ========================================= */
.form-group {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.input-glass {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 16px 24px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
  outline: none;
}

.input-glass:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(179, 139, 34, 0.1);
}

.input-glass::placeholder {
  color: var(--text-muted);
}

/* =========================================
   Footer
   ========================================= */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 80px;
  background: #eceef2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 400px;
}

.footer-brand-name {
  font-family: 'Outfit', serif;
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: inline-block;
  font-weight: 600;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.footer-title {
  font-size: 0.9rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  font-weight: 600;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-strong);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =========================================
   Animations & Reveals
   ========================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .display-title { font-size: 3.5rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .grid-2, .grid-3, .grid-4, .footer-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 40px; }
  .section { padding: 80px 0; }
  .display-title { font-size: 2.5rem; }
  .form-group { flex-direction: column; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
}