/* ============================================================
   vPlugins Wiki — Custom Styles
   GitBook-inspired, Black & Purple theme
   ============================================================ */

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

/* ---------- CSS Variables — Dark Theme (default) ---------- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --sidebar-width: 280px;
  --navbar-height: 56px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --border-radius: 8px;
  --border-radius-lg: 12px;
}

[data-theme='dark'] {
  --bg-primary: #0d0d12;
  --bg-secondary: #13131a;
  --bg-tertiary: #1a1a24;
  --bg-hover: #1f1f2e;
  --bg-active: #252538;
  --bg-code: #16161e;
  --bg-code-header: #1e1e2a;
  --bg-table-head: #1a1a28;
  --bg-table-row-alt: #111118;
  --bg-navbar: rgba(13, 13, 18, 0.85);
  --bg-sidebar: #0d0d12;
  --bg-card: #13131a;
  --bg-card-hover: #1a1a24;
  --bg-badge: rgba(139, 92, 246, 0.15);
  --bg-tip: rgba(34, 197, 94, 0.08);
  --bg-warning: rgba(234, 179, 8, 0.08);
  --bg-info: rgba(59, 130, 246, 0.08);

  --border-primary: #1e1e2e;
  --border-secondary: #2a2a3a;
  --border-code: #2a2a3a;
  --border-tip: #22c55e;
  --border-warning: #eab308;
  --border-info: #3b82f6;

  --text-primary: #e4e4ed;
  --text-secondary: #9d9db5;
  --text-tertiary: #6b6b85;
  --text-heading: #ffffff;
  --text-link: #a78bfa;
  --text-link-hover: #c4b5fd;
  --text-code: #c9a0ff;
  --text-tip: #4ade80;
  --text-warning: #facc15;
  --text-info: #60a5fa;

  --accent-primary: #8b5cf6;
  --accent-primary-hover: #7c3aed;
  --accent-glow: rgba(139, 92, 246, 0.25);
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);

  --scrollbar-track: transparent;
  --scrollbar-thumb: #2a2a3a;
  --scrollbar-thumb-hover: #3a3a5a;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.15);
}

/* ---------- CSS Variables — Light Theme ---------- */
[data-theme='light'] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f8fc;
  --bg-tertiary: #f0f0f8;
  --bg-hover: #ebebf5;
  --bg-active: #e0e0f0;
  --bg-code: #f5f5fa;
  --bg-code-header: #ebebf5;
  --bg-table-head: #f0f0f8;
  --bg-table-row-alt: #fafaff;
  --bg-navbar: rgba(255, 255, 255, 0.85);
  --bg-sidebar: #ffffff;
  --bg-card: #f8f8fc;
  --bg-card-hover: #f0f0f8;
  --bg-badge: rgba(109, 40, 217, 0.1);
  --bg-tip: rgba(34, 197, 94, 0.06);
  --bg-warning: rgba(234, 179, 8, 0.06);
  --bg-info: rgba(59, 130, 246, 0.06);

  --border-primary: #e5e5f0;
  --border-secondary: #d5d5e5;
  --border-code: #e0e0eb;
  --border-tip: #22c55e;
  --border-warning: #eab308;
  --border-info: #3b82f6;

  --text-primary: #1a1a2e;
  --text-secondary: #555570;
  --text-tertiary: #8888a0;
  --text-heading: #0d0d18;
  --text-link: #7c3aed;
  --text-link-hover: #6d28d9;
  --text-code: #7c3aed;
  --text-tip: #16a34a;
  --text-warning: #ca8a04;
  --text-info: #2563eb;

  --accent-primary: #7c3aed;
  --accent-primary-hover: #6d28d9;
  --accent-glow: rgba(124, 58, 237, 0.15);
  --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);

  --scrollbar-track: transparent;
  --scrollbar-thumb: #d5d5e5;
  --scrollbar-thumb-hover: #b5b5cc;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.08);
}

/* ---------- Global ---------- */
html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg-navbar);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-primary);
  z-index: 1000;
  transition: background var(--transition-normal), border var(--transition-normal);
}

.navbar-left, .navbar-right { display: flex; align-items: center; gap: 12px; }


.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.sidebar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.brand-icon { font-size: 1.2rem; }
.brand-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--bg-badge);
  color: var(--accent-primary);
}



.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-primary);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-secondary);
}



[data-theme='dark'] .icon-sun { display: none; }
[data-theme='dark'] .icon-moon { display: block; }
[data-theme='light'] .icon-sun { display: block; }
[data-theme='light'] .icon-moon { display: none; }

/* ---------- App Layout ---------- */
.app-layout {
  display: flex;
  margin-top: var(--navbar-height);
  min-height: calc(100vh - var(--navbar-height));
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-primary);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background var(--transition-normal);
}

.sidebar-content { padding: 16px 12px; }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

/* Sidebar language selector */
.sidebar-lang-wrapper {
  padding: 12px 12px 8px;
}

.sidebar-lang-select {
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-secondary);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-fast);
  appearance: auto;
}

.sidebar-lang-select:hover {
  border-color: var(--accent-primary);
}

.sidebar-lang-select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Sidebar home link */
.sidebar-home-link {
  display: block;
  padding: 10px 12px;
  margin: 4px 12px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.sidebar-home-link:hover {
  color: var(--text-link-hover);
}

.sidebar-home-link.active {
  color: var(--accent-primary);
}

/* Sidebar section */
.sidebar-section { margin-bottom: 8px; }

.sidebar-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
}

/* Sidebar category (collapsible) */
.sidebar-category {}
.sidebar-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  transition: all var(--transition-fast);
  user-select: none;
  text-decoration: none;
}
.sidebar-category-header:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sidebar-category-header.active { color: var(--accent-primary); }

.sidebar-caret {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
  opacity: 0.5;
}
.sidebar-category.open > .sidebar-category-header .sidebar-caret {
  transform: rotate(90deg);
}

.sidebar-category-items {
  display: none;
  padding-left: 12px;
}
.sidebar-category.open > .sidebar-category-items { display: block; }

/* Sidebar item (page link) */
.sidebar-item {
  display: block;
  padding: 6px 12px;
  margin: 1px 0;
  font-size: 0.825rem;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  text-decoration: none;
}
.sidebar-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sidebar-item.active {
  background: var(--bg-active);
  color: var(--accent-primary);
  font-weight: 500;
  border-left-color: var(--accent-primary);
}

/* ---------- Main Content ---------- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  transition: margin var(--transition-normal);
}

.content-article {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 48px 80px;
  animation: fadeSlideIn 0.3s ease forwards;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Home Page ---------- */
.home-hero {
  text-align: center;
  padding: 80px 0 48px;
}

.home-hero-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  display: block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.home-hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.home-hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.home-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(139, 92, 246, 0.3);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-secondary);
}
.btn-secondary:hover {
  background: var(--bg-hover);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* Home sections */
.home-section {
  margin-top: 56px;
}

.home-section h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.home-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.home-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}
.home-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.home-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.home-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Content Typography ---------- */
.content-article h1 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-primary);
}

.content-article h2 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-primary);
}

.content-article h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-top: 28px;
  margin-bottom: 12px;
}

.content-article h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-top: 20px;
  margin-bottom: 8px;
}

.content-article p {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.content-article strong { color: var(--text-heading); font-weight: 600; }

.content-article ul, .content-article ol {
  margin-bottom: 16px;
  padding-left: 24px;
}
.content-article li {
  margin-bottom: 6px;
  color: var(--text-primary);
}
.content-article li::marker { color: var(--text-tertiary); }

.content-article hr {
  border: none;
  border-top: 1px solid var(--border-primary);
  margin: 32px 0;
}

/* ---------- Inline code ---------- */
.content-article code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--bg-code);
  color: var(--text-code);
  border: 1px solid var(--border-code);
}

/* ---------- Code blocks ---------- */
.code-block {
  margin: 16px 0;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-code);
  background: var(--bg-code);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bg-code-header);
  border-bottom: 1px solid var(--border-code);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.code-copy-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  padding: 2px 8px;
  border-radius: 4px;
  transition: all var(--transition-fast);
}
.code-copy-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.code-block pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.6;
  color: var(--text-primary);
}

/* ---------- Tables ---------- */
.content-article .table-wrapper {
  overflow-x: auto;
  margin: 16px 0;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-primary);
}

.content-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.content-article thead tr {
  background: var(--bg-table-head);
}

.content-article th {
  font-weight: 600;
  color: var(--text-heading);
  text-align: left;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-primary);
}

.content-article td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-primary);
}

.content-article tbody tr:nth-child(even) {
  background: var(--bg-table-row-alt);
}

.content-article tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Blockquotes / Tips ---------- */
.callout {
  padding: 14px 18px;
  border-radius: var(--border-radius);
  margin: 16px 0;
  border-left: 3px solid;
  font-size: 0.9rem;
}

.callout-info {
  background: var(--bg-info);
  border-left-color: var(--border-info);
  color: var(--text-info);
}

.callout-tip {
  background: var(--bg-tip);
  border-left-color: var(--border-tip);
  color: var(--text-tip);
}

.callout-warning {
  background: var(--bg-warning);
  border-left-color: var(--border-warning);
  color: var(--text-warning);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}
.breadcrumb a:hover { color: var(--text-link); }

.breadcrumb-sep { opacity: 0.4; }

/* Page nav (prev/next) */
.page-nav {
  display: flex;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-primary);
}

.page-nav-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 16px;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}
.page-nav-link:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card);
}
.page-nav-link.next { align-items: flex-end; text-align: right; }

.page-nav-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.page-nav-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-primary);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .sidebar-toggle { display: flex; }


  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .sidebar-overlay.active {
    display: block;
  }

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

  .content-article {
    padding: 24px 20px 60px;
  }

  .home-hero h1 { font-size: 2rem; }
  .home-hero { padding: 48px 0 32px; }

  .page-nav { flex-direction: column; }
  .page-nav-link.next { align-items: flex-start; text-align: left; }
}

@media (max-width: 480px) {
  .home-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}