:root {
  /* Colors */
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --info-color: #17a2b8;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --background-color: #ffffff;
  --text-color: #000000;

  /* Spacing */
  --spacing-small: 0.5em;
  --spacing-medium: 1em;
  --spacing-large: 2em;

  /* Typography */
  --font-size-small: 0.875rem;
  --font-size-medium: 1rem;
  --font-size-large: 1.25rem;

  /* Shadows */
  --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-dark: 0 2px 4px rgba(0, 0, 0, 0.5);

  --border-radius: 4px;
  --padding: 0.5em 1em;
  --focus-outline: 2px solid #0056b3;
  --form-background: #ffffff;
}

html {
  box-sizing: border-box;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  min-width: 0;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

img,
video,
canvas,
iframe,
object,
embed {
  max-width: 100%;
}

img,
video {
  height: auto;
}

pre {
  max-width: 100%;
  overflow-x: auto;
}

main {
  box-sizing: border-box;
  min-width: 0;
  width: 100%;
  max-width: var(--xtend-main-max-width, none);
  margin: var(--xtend-main-margin, 0);
  padding: var(--xtend-main-padding, 0);
}

section {
  box-sizing: border-box;
  min-width: 0;
  margin-block-end: var(--xtend-section-margin-block-end, 0);
}

[data-theme="dark"] {
  --primary-color: #0d6efd;
  --secondary-color: #adb5bd;
  --info-color: #17a2b8;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --background-color: #121212;
  --text-color: #f0f0f0;
  --form-background: #1e1e1e;
  --shadow-light: var(--shadow-dark);
  --card-bg: #1e1e1e;
  --card-text: #ffffff;
  --section-bg: #1e1e1e;
  --primary-color-hover: #0a58ca;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

body[xt-ui-effects~="fade-in"],
body[data-xt-ui-effects~="fade-in"] {
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--xt-ui-effects-fade-duration, 0.5s) ease;
}

body[xt-ui-effects~="fade-in"][data-xt-ui-effects-ready="true"],
body[data-xt-ui-effects~="fade-in"][data-xt-ui-effects-ready="true"],
body[data-xt-ui-effects-state="ready"] {
  visibility: visible;
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  body[xt-ui-effects~="fade-in"],
  body[data-xt-ui-effects~="fade-in"] {
    transition-duration: 0.01ms;
  }
}

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

a:focus {
  outline: var(--focus-outline);
}

/* Framework-Wide CSS Changes */

/* General Button Styles */
button, [role="tab"], [role="menuitem"], [role="button"] {
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius);
  padding: var(--padding);
  background: var(--primary-color);
  color: #fff;
  font-size: 1em;
  transition: background 0.3s ease;
}

button:hover, [role="tab"]:hover, [role="menuitem"]:hover, [role="button"]:hover {
  background: var(--primary-color-hover, #0056b3);
}

button:focus, [role="tab"]:focus, [role="menuitem"]:focus, [role="button"]:focus {
  outline: var(--focus-outline);
}

/* Section Styles */
.section {
  padding: 4rem 2rem;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.2rem;
}

/* Features Section */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
}

.feature-card {
  background: var(--card-bg, #ffffff);
  color: var(--card-text, #000000);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  margin-bottom: 1rem;
}

/* Comparison Section */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.comparison-card {
  background: var(--card-bg, #ffffff);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

/* Opt-in legacy/prose layout. Keep semantic <main> neutral for App Shells. */
.xtend-prose,
.xtend-centered-main {
  padding: 2em;
  max-width: 800px;
  margin: auto;
}

/*.tab {
  background: transparent;
  border: none;
  padding: var(--padding);
  font-weight: bold;
  cursor: pointer;
  color: var(--text-color);
}
.tab[aria-selected="true"] {
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
} */
x-tab.panel {
  display: none;
}
x-tab.panel.active {
  display: block;
}

/* Card Styles */
x-card {
  --card-bg: #ffffff;
  --card-border: #ddd;
  --card-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.1);
  --card-padding: 1.5rem;
  --card-title-font-size: 1.25rem;
  --card-text-font-size: 1rem;
  --card-title-color: inherit;
  --card-text-color: inherit;
}

[data-theme="dark"] x-card {
  --card-bg: #1e1e1e;
  --card-border: #444;
  --card-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.3);
  --card-title-color: #ffffff;
  --card-text-color: #cccccc;
}

/* Navigation Styles */
x-header nav x-link {
  display: inline-block;
  padding: var(--padding);
  color: var(--primary-color);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-size: 1em;
  margin: 0 0.25em;
  background: transparent;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  vertical-align: middle;
  line-height: 1.5;
}
x-header nav x-link[active],
x-header nav x-link:active {
  background: var(--primary-color);
  color: #fff !important;
}
x-header nav x-link:hover,
x-header nav x-link:focus {
  background: var(--primary-color-hover, #0056b3);
  color: #fff !important;
}
x-header nav x-link * {
  color: inherit !important;
}