/**
 * Components CSS — Dark Theme Simplicity
 * Reusable UI components with co-located responsive variants
 * Version: 1.0.0
 *
 * Each component owns ALL its responsive rules inline.
 */

/* ============================================
   CONTAINERS & LAYOUT (moved from utilities.css)
   ============================================ */

.container {
  width: 100%;
  max-width: var(--content-full);
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.content-container {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.content-container--narrow { max-width: var(--content-narrow); }
.content-container--wide { max-width: var(--content-wide); }
.content-container--full { max-width: var(--content-full); }

/* Section Spacing */
.section { padding: var(--spacing-2xl) 0; }
.section--large { padding: var(--spacing-3xl) 0; }
.section--small { padding: var(--spacing-xl) 0; }

/* Special Layouts */
.full-width {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

.center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.masonry {
  columns: 1;
  column-gap: var(--spacing-lg);
}

.masonry > * {
  break-inside: avoid;
  margin-bottom: var(--spacing-lg);
}

.px-responsive {
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

/* Container/layout responsive scaling */
@media (min-width: 768px) {
  .container { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
  .content-container { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
  .entry-content { font-size: 1.125rem; padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
  .section { padding: var(--spacing-3xl) 0; }
  .section--large { padding: calc(var(--spacing-3xl) * 1.5) 0; }
  .split-layout { grid-template-columns: 1fr 1fr; align-items: center; }
  .masonry { columns: 2; }
  .px-responsive { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
  .table { font-size: 1rem; }
  .table th, .table td { padding: var(--spacing-md) var(--spacing-lg); }
}

/* Tablet content override (768px-1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .single .mobile-main-content { width: 100%; max-width: 100%; }
  .single .mobile-content-padding { padding-left: 2rem; padding-right: 2rem; }
  .single .content-container { max-width: 100%; }
  .single .entry-content { max-width: 720px; margin-left: auto; margin-right: auto; }
}

@media (min-width: 1024px) {
  .container { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
  .content-container { padding-left: var(--spacing-2xl); padding-right: var(--spacing-2xl); }
  .masonry { columns: 3; }
  .px-responsive { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
  .entry-content { font-size: 1.125rem; }
  .no-sidebar .entry-content { max-width: var(--content-wide); font-size: 1.2rem; margin: 0 auto; }
}

@media (min-width: 1280px) {
  .content-container { padding-left: var(--spacing-3xl); padding-right: var(--spacing-3xl); }
  .no-sidebar .entry-content { max-width: var(--content-full); }
}

@media (min-width: 1440px) {
  .no-sidebar .entry-content { max-width: 1100px; }
}

@media (min-width: 1600px) {
  .container { max-width: 1400px; }
  .no-sidebar .entry-content { max-width: 1200px; }
}

/* Mobile content layout */
@media (max-width: 768px) {
  .mobile-single-col {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
  .entry-content { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
  .table-wrapper { border-radius: var(--radius-sm); }
  .table { font-size: 0.875rem; }
  .table th, .table td { padding: var(--spacing-xs) var(--spacing-sm); min-width: 80px; }
  .card-content { padding: var(--spacing-md); }
}

/* Content centering for posts without sidebar/TOC */
@media (min-width: 768px) {
  .single.no-toc.no-sidebar.no-share .content-container { max-width: 85%; margin: 0 auto; }
}
@media (min-width: 992px) {
  .single.no-toc.no-sidebar.no-share .content-container { max-width: 80%; }
}
@media (min-width: 1200px) {
  .single.no-toc.no-sidebar.no-share .content-container { max-width: 70%; }
}

/* ============================================
   SITE STRUCTURE
   ============================================ */

.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
  width: 100%;
  background-color: var(--dark-bg);
}

.article-container {
  width: 100%;
  background-color: var(--dark-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ============================================
   ENTRY CONTENT (base styles)
   ============================================ */

.entry-content {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
}

/* ============================================
   PAGE HEADER (base — page-specific overrides elsewhere)
   ============================================ */

.page-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: auto;
  padding: var(--spacing-lg) var(--spacing-md);
  /* background-color owned by Tailwind bg-dark-300 class in template */
  position: relative;
}

@media (min-width: 1024px) {
  .page-header {
    min-height: auto;
    padding: var(--spacing-xl) var(--spacing-xl);
  }
}

/* ============================================
   HERO CONTAINER (base)
   ============================================ */

.hero-container {
  width: 100%;
  margin-bottom: var(--spacing-xl);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-xl) var(--spacing-md);
}

@media (min-width: 768px) {
  .hero-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
}

/* ============================================
   SIDEBAR
   ============================================ */

.sidebar-container {
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 120px);
  overflow-y: visible;
  min-width: 240px;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--surface-300);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
}

.card-content {
  padding: var(--spacing-lg);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

/* Glass Card */
.glass-card {
  background: rgba(30, 30, 36, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  will-change: transform, border-color, box-shadow;
}

.glass-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
}

.contact-icon {
  color: #60a5fa;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

.btn--primary:hover {
  background-color: var(--accent-blue-hover);
  border-color: var(--accent-blue-hover);
  color: white;
}

.btn--secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn--secondary:hover {
  background-color: var(--surface-300);
  color: var(--accent-blue);
  border-color: var(--accent-blue-muted);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text-muted);
  border: none;
}

.btn--ghost:hover {
  background-color: var(--surface-300);
  color: var(--accent-blue);
}

/* Button Sizes */
.btn--sm { padding: var(--spacing-xs) var(--spacing-md); font-size: 0.875rem; }
.btn--lg { padding: var(--spacing-md) var(--spacing-xl); font-size: 1.125rem; }
.btn--xl { padding: var(--spacing-lg) var(--spacing-2xl); font-size: 1.25rem; }

/* Button States */
.btn:disabled,
.btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--loading {
  position: relative;
  color: transparent;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 767px) {
  .btn {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .btn--mobile-inline {
    width: auto;
  }
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--surface-300);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  margin-top: var(--spacing-xs);
  color: #ef4444;
  font-size: 0.875rem;
}

.form-help {
  margin-top: var(--spacing-xs);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.form-checkbox input,
.form-radio input {
  width: auto;
}

@media (max-width: 768px) {
  .form-group { margin-bottom: var(--spacing-md); }
}

/* ============================================
   TABLES
   ============================================ */

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.table-wrapper.has-scroll .scroll-indicator { display: block; }

.scroll-indicator {
  display: none;
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  pointer-events: none;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--surface-300);
  font-size: 0.875rem;
}

.table th,
.table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}

.table th {
  background-color: var(--surface-400);
  font-weight: 600;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
  z-index: 10;
}

.table tbody tr:hover {
  background-color: rgba(59, 130, 246, 0.05);
}

.table--striped tbody tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.table--compact th,
.table--compact td {
  padding: var(--spacing-xs) var(--spacing-sm);
}

/* ============================================
   NAVIGATION COMPONENTS
   ============================================ */

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumbs {
  display: inline-block;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

.breadcrumb-separator {
  color: var(--text-light);
}

/* ============================================
   BADGES
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--primary { background-color: var(--accent-blue); color: white; }
.badge--secondary { background-color: var(--surface-400); color: var(--text-muted); }
.badge--success { background-color: #10b981; color: white; }
.badge--warning { background-color: #f59e0b; color: white; }
.badge--error { background-color: #ef4444; color: white; }

/* ============================================
   ALERTS
   ============================================ */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin: var(--spacing-lg) 0;
}

.alert--info { background-color: rgba(59, 130, 246, 0.1); border-color: var(--accent-blue); color: var(--text-primary); }
.alert--success { background-color: rgba(16, 185, 129, 0.1); border-color: #10b981; color: var(--text-primary); }
.alert--warning { background-color: rgba(245, 158, 11, 0.1); border-color: #f59e0b; color: var(--text-primary); }
.alert--error { background-color: rgba(239, 68, 68, 0.1); border-color: #ef4444; color: var(--text-primary); }

/* ============================================
   WORDPRESS WIDGETS
   ============================================ */

.widget {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}

.widget:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.widget-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.widget-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 3rem;
  height: 2px;
  background-color: var(--accent-blue);
}

.widget_text { color: var(--text-primary); line-height: 1.6; }
.widget_text p { margin-bottom: var(--spacing-md); }
.widget_text p:last-child { margin-bottom: 0; }

.widget a { color: var(--text-primary); text-decoration: none; transition: color var(--transition-base); }
.widget a:hover { color: var(--accent-blue-hover); }

.widget ul { list-style: none; margin: 0; padding: 0; }
.widget li { padding: var(--spacing-sm) 0; border-bottom: 1px solid var(--border-color); }
.widget li:last-child { border-bottom: none; }

/* Search widget */
.widget_search .search-form { position: relative; margin-top: var(--spacing-sm); }

.widget_search .search-field {
  width: 100%;
  padding: var(--spacing-sm) 3rem var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  background-color: var(--surface-300);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.widget_search .search-field:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.widget_search .search-submit {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  padding: 0 var(--spacing-sm);
  background-color: var(--accent-blue);
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: white;
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.widget_search .search-submit:hover {
  background-color: var(--accent-blue-hover);
}

/* ============================================
   MODAL
   ============================================ */

@media (max-width: 768px) {
  .modal {
    margin: var(--spacing-sm);
    max-width: calc(100vw - 2rem);
    max-height: calc(100vh - 2rem);
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--spacing-md);
  }
}

/* ============================================
   INTERACTIVE FEEDBACK
   ============================================ */

.dts-copy-feedback {
  position: fixed;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, #10B981, #059669);
  color: white;
  padding: 16px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  z-index: 999999;
  transform: translateY(-100px) scale(0.9);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3),
              0 10px 10px -5px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.dts-copy-feedback.show {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* Button Active States */
.mobile-share-toggle.active,
.mobile-toc-toggle.active,
#share-btn.active {
  background-color: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.5);
}

/* Dropdown positioning — applied dynamically by core.js positionDropdown() */
.dropdown--top { bottom: 100%; top: auto; }
.dropdown--bottom { top: 100%; bottom: auto; }
.dropdown--left { right: 100%; left: auto; }
.dropdown--right { left: 100%; right: auto; }

/* Dropdown Animations */
#share-dropdown,
.mobile-share-dropdown,
.mobile-toc-dropdown {
  transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
}

/* TOC Link Active State */
.toc-link.active {
  color: #3B82F6;
  background-color: rgba(59, 130, 246, 0.1);
}

/* Share Button Hover Effects */
.share-dropdown a:hover,
.mobile-share-dropdown a:hover {
  transform: translateX(2px);
  transition: transform 0.2s ease;
}

/* ============================================
   REVEAL-ON-SCROLL ANIMATION
   ============================================ */

.reveal-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-text.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   FOCUS / ACCESSIBILITY ENHANCEMENTS
   ============================================ */

.card:focus-visible,
.glass-card:focus-visible,
.section-card:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -5px rgba(59, 130, 246, 0.3);
}

.card:focus-within,
.glass-card:focus-within,
.section-card:focus-within {
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px -2px rgba(59, 130, 246, 0.2);
}

.btn:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.breadcrumbs a:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (max-width: 767px) {
  .btn:focus-visible,
  .card:focus-visible,
  .glass-card:focus-visible,
  .section-card:focus-visible {
    outline-width: 3px;
    outline-offset: 3px;
  }
}

/* ============================================
   AUTHOR CARD — responsive image treatment
   ============================================ */
.author-card-img {
  width: 4rem;
  height: 4rem;
  object-fit: cover;
  display: block;
}
@media (min-width: 768px) {
  .author-card-image {
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
  }
  .author-card-img {
    width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
  }
}