/* CSS Variables for Theme Support */
:root {
  /* Light Theme Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --border-color: #dee2e6;
  --border-light: #e9ecef;
  --accent-color: #0d6efd;
  --accent-hover: #0b5ed7;
  --success-color: #198754;
  --warning-color: #fd7e14;
  --danger-color: #dc3545;

  /* Sidebar Colors */
  --sidebar-bg: var(--bg-secondary);
  --sidebar-border: var(--border-color);
  --sidebar-text: var(--text-primary);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  --font-size-xxxl: 2rem;

  /* Layout */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 60px;
  --header-height: 60px;
  --footer-height: 50px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #404040;
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #666666;
  --border-color: #404040;
  --border-light: #333333;
  --accent-color: #4dabf7;
  --accent-hover: #339af0;
  --sidebar-bg: var(--bg-secondary);
  --sidebar-border: var(--border-color);
  --sidebar-text: var(--text-primary);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

textarea {
  resize: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* App Container */
.app-container {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--sidebar-width);
  grid-template-areas: "sidebar-left main-content sidebar-right";
  min-height: 100vh;
  transition: grid-template-columns var(--transition-normal);
  overflow: visible !important;
}

.app-container.left-collapsed {
  grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--sidebar-width);
}

.app-container.right-collapsed {
  grid-template-columns: var(--sidebar-width) 1fr var(--sidebar-collapsed-width);
}

.app-container.left-collapsed.right-collapsed {
  grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--sidebar-collapsed-width);
}

/* Sidebar Styles */
.sidebar {
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  overflow: visible !important;
}

.sidebar-left {
  grid-area: sidebar-left;
}

.sidebar-right {
  grid-area: sidebar-right;
  border-right: none;
  border-left: 1px solid var(--sidebar-border);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .sidebar-header .logo,
.sidebar.collapsed .sidebar-header h3,
.sidebar.collapsed .search-container,
.sidebar.collapsed .sidebar-footer,
.sidebar.collapsed .language-selector,
.sidebar.collapsed .info-content,
.sidebar.collapsed .tools-nav {
  display: none;
}

/* Sidebar Header */
.sidebar-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-height: var(--header-height);
}

.toggle-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.icon {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.logo h1 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--accent-color);
}

/* Search Container */
.search-container {
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.search-container input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-xxl);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.search-container input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.search-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

/* Navigation */
.tools-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--spacing-md);
  max-height: calc(100dvh - 180px);
}

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

.submenu.collapsed .submenu-tools {
  display: none;
}

.submenu-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  display: flex;
  align-items: center;
  gap: 0.5em;
  user-select: none;
  cursor: pointer;
}

.submenu-toggle-icon {
  display: flex;
  align-items: center;
  transition: transform 0.2s;
}

.submenu:not(.collapsed) .submenu-toggle-icon {
  transform: rotate(180deg);
}

.submenu-tools {
  list-style: none;
}

.tool-item {
  margin-bottom: var(--spacing-xs);
}

.tool-link {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
}

.tool-link:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-color);
}

.tool-link.active {
  background-color: var(--accent-color);
  color: white;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-light);
  margin-top: auto;
  display: flex;
  justify-content: space-around;
}

.language-selector select {
  width: 100%;
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: var(--font-size-xs);
}

/* Footer Controls */
.footer-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.theme-selector select,
.language-selector select {
  padding: 0.3em 1.5em 0.3em 0.8em;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: border-color 0.2s;
  outline: none;
  appearance: none;
  min-width: 80px;
}

.theme-selector select:focus,
.language-selector select:focus {
  border-color: var(--accent-color);
}

.config-link a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2em;
  height: 2.2em;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--accent-color);
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.config-link a:hover {
  background: var(--accent-color);
  color: #fff;
}

.config-link .icon {
  width: 1.3em;
  height: 1.3em;
  stroke-width: 2.2;
}

/* Copyright */
.copyright {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  margin-bottom: 0.5rem;
}

/* Main Content */
.main-content {
  grid-area: main-content;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.content-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-primary);
  min-height: var(--header-height);
}

.content-header h1 {
  font-size: var(--font-size-xxl);
  font-weight: 600;
  color: var(--text-primary);
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.theme-toggle svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  transition: opacity var(--transition-fast);
}

[data-theme="light"] .moon-icon,
[data-theme="dark"] .sun-icon {
  opacity: 0;
}

[data-theme="light"] .sun-icon,
[data-theme="dark"] .moon-icon {
  opacity: 1;
}

/* Tool Content */
.tool-content {
  flex: 1;
  padding: var(--spacing-xl);
  background-color: var(--bg-primary);
  margin-bottom: var(--spacing-xl);
}

.home-content {
  max-width: 800px;
  margin: 0 auto;
}

.home-content h2 {
  font-size: var(--font-size-xxxl);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.home-content p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xxl);
  line-height: 1.6;
}

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

.feature-card {
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

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

.feature-card p {
  color: var(--text-secondary);
  margin: 0;
  font-size: var(--font-size-base);
}

/* Content Footer */
.content-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;

  & p {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
  }

  @media (max-width: 650px) {
    flex-direction: column;

    & p {
      margin-bottom: var(--spacing-sm);
    }
  }
}

@media (max-width: 1210px) {
  .app-container:not(.left-collapsed):not(.right-collapsed) .content-footer {
    flex-direction: column;
  }
}

@media (max-width: 975px) {
  .app-container .content-footer {
    flex-direction: column;
  }
}

.footer-nav {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

/* Right Sidebar Info Content */
.info-content {
  flex: 1;
  padding: var(--spacing-md);
  overflow-y: auto;
}

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

.info-section h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.info-section ul {
  list-style: none;
}

.info-section li {
  margin-bottom: var(--spacing-sm);
}

.info-section a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  display: block;
  transition: all var(--transition-fast);
}

.info-section a:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent-color);
}

/* Mobile Styles */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 998;
}

/* Header menu buttons for mobile */
.header-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
  align-items: center;
  justify-content: center;
  height: 40px;
  width: 40px;
}

.header-menu-btn .icon {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .header-menu-btn {
    display: flex;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
  }

  .header-menu-btn.left {
    left: var(--spacing-md);
  }

  .header-menu-btn.right {
    right: var(--spacing-md);
  }

  .content-header {
    position: relative;
    justify-content: center;
  }

  .content-header h1 {
    margin: 0 auto;
  }
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 10px;
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 8px;
  border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar {
  background: var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border: 2px solid var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

[data-theme="dark"] * {
  scrollbar-color: var(--border-color) var(--bg-secondary);
}

/* Responsive Design */
@media (max-width: 950px) {
  .app-container {
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-areas: "sidebar-left main-content";
  }

  .sidebar-right {
    position: fixed;
    top: 0;
    right: 0;
    height: 100dvh;
  }
}

/* Responsive Design */
@media (max-width: 768px) {

  .app-container,
  .app-container.left-collapsed,
  app-container.right-collapsed,
  .app-container.left-collapsed.right-collapsed {
    grid-template-columns: 1fr;
    grid-template-areas: "main-content";
  }

  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 999;
    width: var(--sidebar-width);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
  }

  .sidebar-right {
    right: 0;
    transform: translateX(100%);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
    width: max(var(--sidebar-width), 50wh);
  }

  .mobile-overlay.active {
    display: block;
  }

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

  .content-header h1 {
    font-size: var(--font-size-xl);
  }

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

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-nav {
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .tool-content {
    padding: var(--spacing-md);
  }

  .home-content h2 {
    font-size: var(--font-size-xxl);
  }

  .home-content p {
    font-size: var(--font-size-base);
  }
}

/* Sticky header/footer solo en páginas estáticas y solo en desktop */
@media (min-width: 769px) {
  .static-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  }

  .static-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
  }

  .static-main {
    padding-top: 80px;
    padding-bottom: 70px;
  }
}

/* Selectores de tema e idioma en estáticas */
.static-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: flex-end;
  margin-bottom: 0.5rem;
}

.static-controls select {
  padding: 0.3em 1.5em 0.3em 0.8em;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: border-color 0.2s;
  outline: none;
  appearance: none;
  min-width: 80px;
}

.static-controls select:focus {
  border-color: var(--accent-color);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

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

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}

.mb-4 {
  margin-bottom: var(--spacing-lg);
}

.mb-5 {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mt-4 {
  margin-top: var(--spacing-lg);
}

.mt-5 {
  margin-top: var(--spacing-xl);
}

.favorite-btn {
  background: none;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
  outline: none;
  display: flex;
  align-items: center;
  transition: color 0.2s;
  color: var(--text-secondary);
}

.favorite-btn .star-icon {
  width: 1rem;
  height: 1rem;
  stroke-width: 2.5;
  stroke: currentColor;
  fill: none;
  transition: fill 0.2s, color 0.2s;
}

.favorite-btn.active {
  color: var(--accent-color);
}

.favorite-btn.active .star-icon {
  fill: var(--accent-color);
  stroke: var(--accent-color);
}

.favorite-btn:not(.active) .star-icon {
  fill: none;
  stroke: var(--text-secondary);
}

.sticky-menu {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--sidebar-bg, #fff);
  height: 100%;
  display: flex;
  flex-direction: column;
  max-height: 100dvh;
}