/*
Theme Name: Sake Blog X-Server
Description: エックスサーバー最適化版 黒を基調とした酒ブログテーマ
Version: 1.0
Author: Your Name
Text Domain: sake-blog-xserver
*/

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

:root {
  --primary-color: #f59e0b;
  --secondary-color: #d97706;
  --background-dark: #000000;
  --background-card: #1a1a1a;
  --background-hover: #2d2d2d;
  --text-primary: #ffffff;
  --text-secondary: #d1d5db;
  --border-color: #374151;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(135deg, #f59e0b, #fcd34d);
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", "Meiryo", sans-serif;
  background-color: var(--background-dark);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Header ===== */
.site-header {
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.site-header.scrolled {
  background-color: rgba(0, 0, 0, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.8rem;
  font-weight: bold;
  transition: color 0.3s ease;
}

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

.logo-icon {
  width: 32px;
  height: 32px;
  fill: var(--primary-color);
  transition: transform 0.3s ease;
}

.site-title:hover .logo-icon {
  transform: rotate(10deg);
}

/* ===== Navigation ===== */
.main-navigation {
  position: relative;
}

.main-navigation ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.main-navigation a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  position: relative;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
  color: var(--primary-color);
  background-color: rgba(245, 158, 11, 0.1);
}

.main-navigation a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
  width: 80%;
}

/* モバイルメニュー */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-navigation {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-dark);
    border-top: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .main-navigation.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-navigation ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem;
  }

  .main-navigation a {
    display: block;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
  }
}

/* ===== Hero Section ===== */
.hero-section {
  background: linear-gradient(135deg, var(--background-dark) 0%, #1a1a1a 50%, var(--background-dark) 100%);
  padding: 6rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.02"/><circle cx="10" cy="90" r="1" fill="%23ffffff" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  animation: fadeInUp 1s ease-out;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-button {
  display: inline-block;
  background: var(--gradient-primary);
  color: #000;
  padding: 1rem 2.5rem;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
  color: #000;
}

/* ===== Main Content ===== */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
}

.content-area {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* ===== Section Headers ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  font-size: 1.75rem;
  font-weight: bold;
  position: relative;
}

.section-header::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), transparent);
  margin-left: 1rem;
}

.section-icon {
  width: 28px;
  height: 28px;
  fill: var(--primary-color);
}

/* ===== Article Cards ===== */
.articles-grid {
  display: grid;
  gap: 2rem;
}

.article-card {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  position: relative;
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.article-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.article-card:hover::before {
  transform: scaleX(1);
}

.article-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card:hover .article-image {
  transform: scale(1.05);
}

.article-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.category-badge {
  background: var(--gradient-primary);
  color: #000;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.read-time,
.view-count {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.3s ease;
}

.article-title:hover {
  color: var(--primary-color);
}

.article-excerpt {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex: 1;
  line-height: 1.6;
}

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

.article-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.read-more {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.read-more:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* ===== Categories Section ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.category-card {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.1), transparent);
  transition: left 0.5s ease;
}

.category-card:hover::before {
  left: 100%;
}

.category-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-5px);
  color: var(--text-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.category-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  padding: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.category-card:hover .category-icon {
  transform: scale(1.1) rotate(5deg);
}

.category-icon svg {
  width: 30px;
  height: 30px;
  fill: white;
}

.category-whiskey {
  background: linear-gradient(135deg, #d97706, #f59e0b);
}
.category-sake {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
}
.category-beer {
  background: linear-gradient(135deg, #eab308, #fbbf24);
}
.category-cocktail {
  background: linear-gradient(135deg, #ec4899, #f472b6);
}
.category-nonalcohol {
  background: linear-gradient(135deg, #059669, #10b981);
}

.category-name {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.category-count {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ===== Sidebar ===== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.widget {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.widget:hover {
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.widget-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-color);
  position: relative;
}

.widget-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
}

.widget-title svg {
  width: 20px;
  height: 20px;
  fill: var(--primary-color);
}

/* ===== Popular Posts Widget ===== */
.popular-posts-list {
  list-style: none;
}

.popular-post-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.popular-post-item:hover {
  background-color: rgba(245, 158, 11, 0.05);
  margin: 0 -1rem;
  padding-left: 1rem;
  padding-right: 1rem;
  border-radius: 8px;
}

.popular-post-item:last-child {
  border-bottom: none;
}

.popular-post-rank {
  background: var(--gradient-primary);
  color: #000;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: bold;
  flex-shrink: 0;
}

.popular-post-content {
  flex: 1;
}

.popular-post-title {
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.popular-post-title:hover {
  color: var(--primary-color);
}

.popular-post-views {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ===== Tags Widget ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-link {
  background-color: var(--background-hover);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 25px;
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.tag-link:hover {
  background: var(--gradient-primary);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--background-card);
  border-top: 1px solid var(--border-color);
  margin-top: 6rem;
  padding: 4rem 2rem 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-widget h3 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-widget h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
}

.footer-widget ul {
  list-style: none;
}

.footer-widget ul li {
  margin-bottom: 0.75rem;
}

.footer-widget ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  padding: 0.25rem 0;
  display: inline-block;
}

.footer-widget ul li a:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .main-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem 1.5rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }

  .hero-section {
    padding: 4rem 1rem;
  }

  .main-container {
    padding: 2rem 1rem;
    gap: 2rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
  }

  .footer-widgets {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .article-card {
    margin: 0 -0.5rem;
  }

  .widget {
    margin: 0 -0.5rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .section-header {
    font-size: 1.5rem;
  }

  .article-content {
    padding: 1.5rem;
  }

  .widget {
    padding: 1.5rem;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.hidden {
  display: none;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Print Styles ===== */
@media print {
  .site-header,
  .sidebar,
  .site-footer {
    display: none;
  }

  .main-container {
    grid-template-columns: 1fr;
    max-width: none;
    padding: 0;
  }

  body {
    background: white;
    color: black;
  }
}