@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
  --primary-color: #166534;
  --primary-hover: #14532d;
  --bg-color: #ffffff;
  --bg-secondary: #f8fafc;
  --text-main: #000000;
  --text-muted: #334155;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Inter', 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  padding: 0.5rem 0;
}

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

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.8rem;
  background: var(--bg-secondary);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
}

.lang-switch:hover {
  background: var(--primary-color);
  color: #fff;
}

/* Main Layout */
.main-content {
  flex: 1;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 2rem;
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 0;
  background: linear-gradient(135deg, #f8fafc 0%, #dcfce7 100%);
  border-radius: 1.5rem;
  margin-bottom: 3rem;
  box-shadow: var(--shadow-sm);
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Sections */
.section {
  margin-bottom: 4rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::before {
  content: "";
  display: block;
  width: 4px;
  height: 1.5rem;
  background-color: var(--primary-color);
  border-radius: 2px;
}

/* Profile / Content Blocks */
.content-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.content-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Lists */
.styled-list {
  list-style: none;
}

.styled-list li {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.styled-list li:last-child {
  border-bottom: none;
}

.styled-list b {
  color: var(--text-main);
  font-weight: 600;
}

.styled-list i {
  color: var(--text-main);
  font-style: normal;
}

.styled-list font {
  font-size: 1rem !important; /* Override inline styles */
}

/* Links inside text */
.content-card a, .section a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.content-card a:hover, .section a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  background: var(--bg-secondary);
}

/* Profile details */
.profile-details {
  display: grid;
  gap: 1.5rem;
}

.profile-item {
  display: flex;
  flex-direction: column;
}

.profile-item-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.profile-item-value {
  font-size: 1.05rem;
  color: var(--text-main);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero {
    padding: 3rem 1.5rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
}