/* 
  まったり心理雑学 - Base Styles
  Theme: Relaxing, Elegant, High Conversion
*/

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@400;600&display=swap');

:root {
  /* Color Palette */
  --color-bg: #FCFBF8;
  --color-text: #2C2C2C;
  --color-text-muted: #6B6B6B;
  --color-primary: #D98C7C; /* Soft Terracotta for accents/buttons */
  --color-primary-hover: #C57362;
  --color-secondary: #829B85; /* Sage green for relaxing elements */
  --color-white: #FFFFFF;
  --color-border: #E8E4DF;

  /* Typography */
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 800px; /* Readability width for articles */
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background-color: rgba(252, 251, 248, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: box-shadow var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.site-title span {
  color: var(--color-primary);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.main-nav a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(217, 140, 124, 0.05) 0%, rgba(252, 251, 248, 0) 50%);
  z-index: -1;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.hero p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Articles & Content Blocks */
.content-section {
  padding: 4rem 0;
}

.card {
  background: var(--color-white);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  margin-bottom: 2rem;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* PR Article Styles */
.pr-article {
  background: var(--color-white);
  border-radius: 16px;
  padding: 3rem;
  box-shadow: var(--shadow-md);
  margin: 3rem 0;
  border-top: 5px solid var(--color-primary);
}

.pr-article h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 1rem;
}

.pr-article h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pr-article h2::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
}

.pr-badge {
  display: inline-block;
  background-color: var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

/* High Conversion CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: var(--color-white) !important;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(217, 140, 124, 0.4);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  margin: 2rem 0;
  width: 100%;
  max-width: 400px;
}

.cta-button::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-25deg);
  animation: shine 4s infinite;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 140, 124, 0.5);
}

@keyframes shine {
  0% { left: -100%; }
  20% { left: 200%; }
  100% { left: 200%; }
}

/* Footer */
.site-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.copyright {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* Category Grid (for Top page) */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.category-card {
  display: block;
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  text-decoration: none;
  color: var(--color-text);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.category-card-img {
  height: 160px;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.category-card-content {
  padding: 1.5rem;
}

.category-card-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.category-card-content p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Utilities */
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .pr-article { padding: 2rem 1.5rem; }
  .main-nav { display: none; /* simple mobile */ }
}