/* ========================================
   Block Tales Wiki - Styles
   ======================================== */

/* CSS Variables */
:root {
  --color-primary: #4A90D9;
  --color-secondary: #2D5F8A;
  --color-accent: #FFD700;
  --color-bg: #1a1a2e;
  --color-bg-secondary: #16213e;
  --color-bg-tertiary: #0f3460;
  --color-text: #e8e8e8;
  --color-text-muted: #a0a0a0;
  --color-border: #2a2a4a;
  --color-success: #4CAF50;
  --color-warning: #FF9800;
  --color-error: #f44336;

  /* Stat colors */
  --stat-atk: #D43157;
  --stat-hp: #4CAF50;
  --stat-def: #00C8FF;
  --stat-bp: #66D21C;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.5);

  /* Layout */
  --header-height: 60px;
  --sidebar-width: 260px;
  --max-content-width: 1400px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.header-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  gap: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text);
  font-weight: bold;
  font-size: 1.2rem;
}

.logo:hover {
  color: var(--color-accent);
}

.logo-icon {
  font-size: 1.5rem;
}

.search-box {
  flex: 1;
  max-width: 400px;
  display: flex;
  gap: var(--spacing-xs);
}

.search-box input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.9rem;
}

.search-btn:hover {
  background: var(--color-secondary);
}

.main-nav {
  display: flex;
  gap: var(--spacing-md);
}

.main-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: var(--spacing-sm) var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-accent);
  background: var(--color-bg-tertiary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-sm);
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  z-index: 900;
  transition: transform 0.3s ease;
}

.sidebar-inner {
  padding: var(--spacing-lg);
}

.sidebar-close {
  display: none;
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

.nav-item:hover,
.nav-item.active {
  color: var(--color-text);
  background: var(--color-bg-tertiary);
}

.nav-group {
  margin-top: var(--spacing-md);
}

.nav-group-title {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  padding: var(--spacing-xl);
  max-width: calc(var(--max-content-width) + var(--sidebar-width));
}

/* ========================================
   Footer
   ======================================== */
.footer {
  margin-left: var(--sidebar-width);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl);
  text-align: center;
}

.footer-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
}

.footer p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: var(--spacing-xs) 0;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

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

.hero-search {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: var(--spacing-sm);
}

.hero-search input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
}

.hero-search button {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  cursor: pointer;
  font-weight: bold;
}

.hero-search button:hover {
  background: var(--color-secondary);
}

/* ========================================
   Category Cards
   ======================================== */
.categories {
  margin-bottom: var(--spacing-xl);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  background: var(--color-bg-secondary);
  border: 2px solid var(--card-color, var(--color-primary));
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.category-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.category-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

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

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
}

.stats-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.stats-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 100px;
}

.stat-number {
  font-size: 2rem;
  font-weight: bold;
  color: var(--color-accent);
}

.stat-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ========================================
   List Page
   ======================================== */
.list-page {
  max-width: var(--max-content-width);
  margin: 0 auto;
}

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.list-header h1 {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.list-controls {
  display: flex;
  gap: var(--spacing-sm);
}

.search-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  width: 200px;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.filter-toggle {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
}

.filter-toggle:hover {
  background: var(--color-primary);
}

/* ========================================
   Filter Panel
   ======================================== */
.filter-panel {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  display: none;
}

.filter-panel.open {
  display: block;
}

.filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.filter-header h3 {
  font-size: 1rem;
}

.reset-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.85rem;
}

.reset-btn:hover {
  background: var(--color-error);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.filter-group {
  min-width: 150px;
}

.filter-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
}

.range-slider {
  position: relative;
  height: 40px;
}

.range-slider input[type="range"] {
  position: absolute;
  width: 100%;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
  pointer-events: auto;
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  margin-top: -6px;
}

.range-slider input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
}

.range-values {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ========================================
   Subcategory Tabs
   ======================================== */
.subcategory-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.tab-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
}

.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ========================================
   Items Grid
   ======================================== */
.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--spacing-lg);
}

.item-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

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

.item-image {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.item-image .no-image {
  font-size: 2rem;
  color: var(--color-text-muted);
}

.item-name {
  font-weight: bold;
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.item-stats .stat {
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-tertiary);
}

.item-stats .stat.atk { color: var(--stat-atk); }
.item-stats .stat.hp { color: var(--stat-hp); }
.item-stats .stat.def { color: var(--stat-def); }
.item-stats .stat.bp { color: var(--stat-bp); }

.item-type {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: var(--spacing-xs);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  text-align: center;
}

/* ========================================
   Detail Page
   ======================================== */
.detail-page {
  max-width: 900px;
  margin: 0 auto;
}

.detail-breadcrumb {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.detail-breadcrumb a {
  color: var(--color-text-muted);
}

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

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.back-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
}

.back-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-primary);
}

.detail-type {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}

.detail-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--spacing-xl);
}

.detail-image {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-image .no-image {
  font-size: 4rem;
  color: var(--color-text-muted);
}

.detail-info h1 {
  font-size: 1.8rem;
  margin-bottom: var(--spacing-lg);
}

.detail-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 80px;
}

.stat-box .stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.stat-box .stat-value {
  font-size: 1.5rem;
  font-weight: bold;
}

.detail-section {
  margin-bottom: var(--spacing-xl);
}

.detail-section h3 {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
}

.detail-section p {
  line-height: 1.8;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1200px) {
  .main-nav {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-close {
    display: block;
  }

  .main-content {
    margin-left: 0;
  }

  .footer {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 var(--spacing-md);
    gap: var(--spacing-md);
  }

  .logo-text {
    display: none;
  }

  .search-box {
    max-width: none;
  }

  .main-content {
    padding: var(--spacing-md);
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .items-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-content {
    grid-template-columns: 1fr;
  }

  .detail-image {
    max-width: 300px;
    margin: 0 auto;
  }

  .list-header {
    flex-direction: column;
    align-items: stretch;
  }

  .list-controls {
    flex-wrap: wrap;
  }

  .search-input {
    width: 100%;
  }
}

/* ========================================
   Utilities
   ======================================== */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ========================================
   Featured Tools Section
   ======================================== */
.tools-section {
  margin-bottom: var(--spacing-xl);
}

.tools-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.section-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.tool-card {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 0.3s;
}

.tool-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(255, 215, 0, 0.15);
}

.tool-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.tool-card h3 {
  font-size: 1.3rem;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.tool-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.tool-features {
  font-size: 0.8rem;
  color: var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  text-align: center;
}

/* ========================================
   About Section
   ======================================== */
.about-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

.about-section h2 {
  margin-bottom: var(--spacing-lg);
}

.about-section p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.key-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature {
  background: var(--color-bg-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
}

.feature h3 {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
}

.feature p {
  font-size: 0.9rem;
  margin-bottom: 0;
}