/*
 * Visual-First Kyoto Theme Styles
 * モノトーンベース、ビジュアル主体、塊感重視
 */

:root {
  --mono-black: #0a0a0a;
  --mono-dark: #1a1a1a;
  --mono-medium: #2a2a2a;
  --mono-light: #4a4a4a;
  --mono-lighter: #6a6a6a;
  --mono-white: #ffffff;
  --mono-off-white: #fafafa;
  --mono-gray: #e5e5e5;
  --accent-vr: #00ff00;
  --accent-location: #ff4444;
  --shadow-subtle: rgba(0,0,0,0.05);
  --shadow-medium: rgba(0,0,0,0.15);
  --shadow-deep: rgba(0,0,0,0.3);
  --radius-small: 4px;
  --radius-medium: 12px;
  --radius-large: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
* { box-sizing: border-box; }
body {
  background: var(--mono-off-white);
  color: var(--mono-dark);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Visual Hierarchy - 情報の塊感 */
.content-cluster {
  background: var(--mono-white);
  border-radius: var(--radius-medium);
  box-shadow: 0 2px 20px var(--shadow-subtle);
  margin: 2rem 0;
  overflow: hidden;
  transition: var(--transition);
}

.content-cluster:hover {
  box-shadow: 0 8px 40px var(--shadow-medium);
  transform: translateY(-4px);
}

/* Hero Section - 没入感とVR体験への誘導 */
.plb-hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--mono-dark) 0%, var(--mono-black) 100%);
}

.plb-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  filter: grayscale(80%) contrast(1.3) brightness(0.8);
  transition: var(--transition);
}

.plb-hero:hover .plb-hero__bg {
  opacity: 0.3;
  filter: grayscale(60%) contrast(1.4) brightness(0.9);
  transform: scale(1.02);
}

.plb-hero__overlay {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 40%, transparent 0%, rgba(0,0,0,0.3) 50%),
    radial-gradient(circle at 70% 60%, transparent 0%, rgba(0,0,0,0.4) 60%),
    linear-gradient(180deg, transparent 0%, var(--mono-black) 100%);
}

.plb-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--mono-white);
  max-width: 900px;
  padding: 2rem;
}

.plb-hero__title {
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 100;
  letter-spacing: 0.4em;
  margin: 0 0 1rem;
  text-transform: uppercase;
  opacity: 0;
  animation: heroFadeIn 2s ease-out 0.5s forwards;
  text-shadow: 0 4px 20px rgba(0,0,0,0.8);
  position: relative;
}

.plb-hero__title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--mono-white), transparent);
  opacity: 0;
  animation: heroFadeIn 2s ease-out 1.5s forwards;
}

.plb-hero__subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin: 0 0 3rem;
  opacity: 0;
  animation: heroFadeIn 2s ease-out 1s forwards;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6);
}

/* Hero CTA Buttons */
.hero-cta-group {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 2rem;
  opacity: 0;
  animation: heroFadeIn 2s ease-out 1.5s forwards;
}

.hero-cta-primary,
.hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-large);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.hero-cta-primary {
  background: linear-gradient(135deg, var(--accent-location), #ff6666);
  color: var(--mono-white);
  box-shadow: 0 4px 20px rgba(255,68,68,0.4);
}

.hero-cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,68,68,0.6);
  background: linear-gradient(135deg, #ff6666, var(--accent-location));
}

.hero-cta-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--mono-white);
  border: 2px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}

.hero-cta-secondary:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,255,255,0.1);
}

.cta-icon {
  font-size: 1.2em;
  display: inline-block;
}

.cta-text {
  display: inline-block;
}

/* Hero Stats */
.hero-stats {
  opacity: 0;
  animation: heroFadeIn 2s ease-out 2s forwards;
  margin-top: 1rem;
}

.stat-item {
  color: var(--mono-lighter);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.stat-item strong {
  color: var(--mono-white);
  font-size: 1.1em;
  font-weight: 700;
}

.plb-hero__scr {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--mono-white);
  font-size: 2rem;
  opacity: 0.7;
  transition: var(--transition);
  animation: bounce 2s infinite;
}

.plb-hero__scr:hover {
  opacity: 1;
  transform: translateX(-50%) scale(1.1);
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* Content Section - VR体験への視覚的誘導 */
.content-section {
  padding: 4rem 0;
  background: linear-gradient(180deg, var(--mono-off-white) 0%, #f8f8f8 100%);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 3rem;
  padding: 0 1rem;
}

.section-title-group {
  flex: 1;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--mono-dark);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--mono-light);
  margin: 0;
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* Content Grid - ビジュアル主体のカードレイアウト */
.visual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
}

/* Enhanced Post Card */
.post-card {
  position: relative;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--mono-white);
  box-shadow: 0 2px 20px var(--shadow-subtle);
  transition: var(--transition);
  cursor: pointer;
  isolation: isolate;
}

.post-card.has-vr {
  border: 2px solid rgba(0,255,0,0.2);
  background: linear-gradient(145deg, var(--mono-white) 0%, #f0fff0 100%);
}

.post-card:hover {
  transform: translateY(-12px) rotateX(2deg);
  box-shadow: 0 25px 60px var(--shadow-medium);
}

.post-card.has-vr:hover {
  box-shadow: 0 25px 60px rgba(0,255,0,0.1), 0 0 40px rgba(0,255,0,0.05);
  border-color: rgba(0,255,0,0.4);
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

/* Visual Indicators */
.vr-indicator {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--accent-vr), #00cc00);
  color: var(--mono-black);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-large);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 3;
  box-shadow: 0 4px 15px rgba(0,255,0,0.3);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  animation: vrPulse 2s infinite;
}

@keyframes vrPulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(0,255,0,0.3); }
  50% { box-shadow: 0 4px 25px rgba(0,255,0,0.6); }
}

.vr-icon {
  font-size: 1.1em;
}

.location-indicator {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: linear-gradient(135deg, var(--accent-location), #ff6666);
  color: var(--mono-white);
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 0.9rem;
  z-index: 3;
  box-shadow: 0 3px 12px rgba(255,68,68,0.4);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.location-icon {
  font-size: 1em;
}

/* Card Media - VR優先の大きな表示 */
.uk-card-media-top {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--mono-gray);
}

.uk-card-media-top img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  filter: grayscale(30%) contrast(1.1);
}

.post-card:hover .uk-card-media-top img {
  transform: scale(1.05);
  filter: grayscale(0%) contrast(1.2);
}

/* Card Content - 情報の階層化 */
.uk-card-body {
  padding: 1.5rem;
  position: relative;
}

.uk-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--mono-dark);
  line-height: 1.3;
}

.card-desc-en {
  color: var(--mono-lighter);
  font-size: 0.9rem;
  margin: 0 0 1rem;
  line-height: 1.4;
}

.uk-text-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--mono-gray);
  font-size: 0.8rem;
  color: var(--mono-light);
}

/* Category Badge - より目立つ配置 */
.category-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  background: var(--mono-black);
  color: var(--mono-white);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-small);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 2;
}

/* Sort Toggle - 視覚的に分かりやすく */
.plb-sort-toggle {
  display: flex;
  background: var(--mono-white);
  border-radius: var(--radius-medium);
  box-shadow: 0 2px 20px var(--shadow-subtle);
  overflow: hidden;
  margin-bottom: 2rem;
}

.plb-sort-toggle button {
  flex: 1;
  padding: 1rem 2rem;
  border: none;
  background: transparent;
  color: var(--mono-light);
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}

.plb-sort-toggle button.uk-button-primary,
.plb-sort-toggle button.active {
  background: var(--mono-dark);
  color: var(--mono-white);
}

.plb-sort-toggle button:hover {
  background: var(--mono-medium);
  color: var(--mono-white);
}

/* Load More Button - より魅力的に */
#load-more {
  background: var(--mono-dark);
  color: var(--mono-white);
  border: none;
  padding: 1.5rem 3rem;
  border-radius: var(--radius-large);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px var(--shadow-medium);
  margin: 3rem auto;
  display: block;
}

#load-more:hover {
  background: var(--mono-black);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--shadow-deep);
}

/* Skeleton Loaders - 読み込み中の体験向上 */
.skeleton-card {
  background: var(--mono-white);
  border-radius: var(--radius-medium);
  overflow: hidden;
  box-shadow: 0 2px 20px var(--shadow-subtle);
}

.skeleton-box,
.skeleton-line {
  background: linear-gradient(90deg, var(--mono-gray) 25%, #f0f0f0 50%, var(--mono-gray) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .plb-hero__title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    letter-spacing: 0.3em;
  }
  
  .visual-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1rem 0;
  }
  
  .post-card {
    margin: 0 1rem;
  }
  
  .plb-sort-toggle {
    margin: 1rem;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --mono-off-white: var(--mono-dark);
    --mono-white: var(--mono-medium);
    --mono-gray: var(--mono-light);
  }
  
  body {
    background: var(--mono-black);
    color: var(--mono-white);
  }
}