/*
Theme Name: Free Calculator Ninja
Theme URI: https://freecalculatorninja.com
Author: Free Calculator Ninja Team
Author URI: https://freecalculatorninja.com
Description: A production-ready WordPress theme for calculator niche sites with advanced SEO, custom post types, AJAX rating/views systems, and performance optimization. Features custom URL structures, schema markup, Elementor compatibility, and Core Web Vitals optimization.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: freecalculatorninja
Tags: calculator, custom-post-types, elementor, seo, performance, rating-system
*/

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
  /* Colors */
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-primary-light: #3b82f6;
  --color-secondary: #10b981;
  --color-accent: #f59e0b;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-light: #f9fafb;
  --color-bg-dark: #f3f4f6;
  --color-border: #e5e7eb;
  --color-error: #ef4444;
  --color-success: #10b981;

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --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-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-lg);
  --border-radius: 0.5rem;
  --border-radius-sm: 0.25rem;
  --border-radius-lg: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
}

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

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--line-height-tight);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--space-md);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
}

.site-branding {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.site-title a {
  color: var(--color-text);
}

.site-title a:hover {
  color: var(--color-primary);
}

.site-footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-xl);
  margin-top: var(--space-3xl);
}

.footer-inner {
  display: grid;
  gap: var(--space-xl);
}

.footer-copyright {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* ============================================
   NAVIGATION
   ============================================ */
.main-navigation ul {
  list-style: none;
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.main-navigation a {
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-navigation ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.footer-navigation a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-text);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  text-align: center;
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-secondary);
  color: #fff;
}

.btn-secondary:hover {
  background: #059669;
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ============================================
   GRID SYSTEMS
   ============================================ */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

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

.card-title {
  margin-bottom: var(--space-sm);
}

.card-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.card-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: var(--space-3xl) 0;
  margin-bottom: var(--space-2xl);
}

.hero-title {
  color: #fff;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-4xl);
}

.hero-description {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  opacity: 0.95;
}

/* ============================================
   SEARCH BAR (Homepage Calculator Search)
   ============================================ */
.search-wrapper {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  z-index: 10;
}

.search-bar {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-right: 3rem;
  border: none;
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-xl);
}

.search-bar:focus {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.search-icon {
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
  z-index: 1;
}

.search-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  max-height: 400px;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: 9999;
  display: none;
}

.search-suggestions.active {
  display: block;
}

.search-suggestion-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-suggestion-item:hover {
  background: var(--color-bg-light);
}

.search-suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.suggestion-category {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ============================================
   BLOG SEARCH FORM
   ============================================ */
.blog-search-wrapper {
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
}

.search-form {
  position: relative;
  display: flex;
  gap: var(--space-sm);
}

.search-field {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.search-field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-submit {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.search-submit svg {
  display: block;
}

/* ============================================
   SECTIONS SPACING
   ============================================ */
section {
  padding: var(--space-3xl) 0;
}

section+section {
  padding-top: 0;
}

.calculator-categories,
.popular-calculators,
.recent-blog-posts {
  padding: var(--space-3xl) 0;
}

/* ============================================
   RATING STARS
   ============================================ */
.rating-container {
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
}

.rating-stars {
  display: flex;
  gap: var(--space-xs);
  font-size: var(--font-size-2xl);
}

.star {
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-border);
}

.star.filled {
  color: var(--color-accent);
}

.star:hover {
  transform: scale(1.1);
}

.rating-info {
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ============================================
   CALCULATOR TOOL AREA
   ============================================ */
.calculator-tool-area {
  background: var(--color-bg-light);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

/* ============================================
   COMMENTS
   ============================================ */
.comments-area {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.comment-list {
  list-style: none;
}

.comment {
  margin-bottom: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
}

.comment .children {
  margin-left: var(--space-xl);
  margin-top: var(--space-lg);
}

.comment-author {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.comment-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.comment-content {
  margin: var(--space-sm) 0;
}

.reply {
  font-size: var(--font-size-sm);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ============================================
   CALCULATOR HERO STATS
   ============================================ */
.calculator-hero .breadcrumbs-wrapper {
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.calculator-hero .breadcrumbs,
.calculator-hero .breadcrumbs a {
  color: #fff;
}

.calculator-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: #fff;
}

.stat-item svg {
  display: block;
  margin-bottom: var(--space-xs);
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.85;
  text-transform: capitalize;
}

/* ============================================
   CALCULATOR SINGLE PAGE
   ============================================ */
.calculator-single {
  margin-top: var(--space-xl);
}

.calculator-content {
  margin-bottom: var(--space-2xl);
  line-height: var(--line-height-relaxed);
}

.calculator-content h2 {
  margin-top: var(--space-2xl);
}

.category-image img,
.card-thumbnail img,
.blog-thumbnail img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
}

.category-featured-image {
  margin: var(--space-xl) 0;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  text-align: center;
}

.category-featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   BADGES
   ============================================ */
.category-badge,
.rating-badge,
.views-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-light);
  border-radius: var(--border-radius-sm);
}

.category-badge {
  background: var(--color-primary);
  color: #fff;
}

.rating-badge {
  color: var(--color-accent);
}

/* ============================================
   ARCHIVE & TAXONOMY PAGES
   ============================================ */
.archive-header,
.category-header,
.search-header {
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl);
  background: var(--color-bg-light);
  border-radius: var(--border-radius-lg);
  text-align: center;
}

.archive-title,
.category-title,
.search-title {
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.archive-description,
.category-description {
  color: var(--color-text);
  margin-top: var(--space-md);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.category-count {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-top: var(--space-sm);
}

/* ============================================
   BLOG POSTS
   ============================================ */
.blog-posts {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.blog-post-item {
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.blog-post-item:last-child {
  border-bottom: none;
}

.entry-meta {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.meta-separator {
  color: var(--color-border);
}

.entry-content {
  margin: var(--space-md) 0;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.pagination .page-numbers {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================
   BREADCRUMBS
   ============================================ */
.breadcrumbs {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
}

.breadcrumbs a {
  color: inherit;
  text-decoration: underline;
}

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

/* ============================================
   ENHANCED COMMENTS
   ============================================ */
.comment-body {
  background: var(--color-bg);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
}

.comment-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.comment-author img {
  border-radius: 50%;
}

.comment-author .fn {
  font-weight: 600;
  font-size: var(--font-size-base);
}

.comment-author .says {
  display: none;
}

.comment-metadata {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-left: 66px;
}

.comment-metadata a {
  color: inherit;
}

.comment-awaiting-moderation {
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-sm);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
}

.comment-content {
  margin: var(--space-md) 0;
  margin-left: 66px;
}

.comment .children {
  list-style: none;
  margin-left: var(--space-xl);
  margin-top: var(--space-md);
}

.reply {
  margin-left: 66px;
}

.reply a {
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.comment-form {
  background: var(--color-bg-light);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  margin-top: var(--space-xl);
}

.comment-form-comment,
.comment-form-author,
.comment-form-email,
.comment-form-url {
  margin-bottom: var(--space-md);
}

/* ============================================
   SINGLE POST & PAGE
   ============================================ */
.single-post,
.single-page {
  max-width: 850px;
  margin: var(--space-2xl) auto;
}

.entry-header {
  margin-bottom: var(--space-xl);
}

.entry-title {
  margin-bottom: var(--space-md);
}

.post-thumbnail,
.page-thumbnail {
  margin: var(--space-2xl) 0;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.post-thumbnail img,
.page-thumbnail img {
  width: 100%;
  height: auto;
  display: block;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.entry-content p {
  margin-bottom: var(--space-lg);
}

.entry-content ul,
.entry-content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.entry-content li {
  margin-bottom: var(--space-sm);
}

.entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin: var(--space-xl) 0;
}

.entry-footer {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.tags {
  font-size: var(--font-size-sm);
}

.tags a {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-light);
  border-radius: var(--border-radius-sm);
  margin-right: var(--space-xs);
  margin-bottom: var(--space-xs);
  transition: background var(--transition-fast);
}

.tags a:hover {
  background: var(--color-primary);
  color: #fff;
}

/* Post Navigation */
.post-navigation {
  margin: var(--space-2xl) 0;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.nav-links {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav-previous,
.nav-next {
  flex: 1;
}

.nav-next {
  text-align: right;
}

.nav-subtitle {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
}

.nav-title {
  display: block;
  font-weight: 600;
  color: var(--color-primary);
}

.page-links {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.page-links a {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  margin: 0 var(--space-xs);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
}

.page-links a:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

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

/* ============================================
   PAGE BUILDER & SEO PLUGIN COMPATIBILITY
   ============================================ */
/* Elementor compatibility */
.elementor-widget-wrap {
  width: 100%;
}

/* Yoast SEO breadcrumbs compatibility */
.yoast-breadcrumb,
#breadcrumbs {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
}

.yoast-breadcrumb a,
#breadcrumbs a {
  color: inherit;
  text-decoration: underline;
}

/* Rank Math compatibility */
.rank-math-breadcrumb {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --container-padding: var(--space-md);
  }

  .menu-toggle {
    display: block;
  }

  .main-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
  }

  .main-navigation.active {
    display: block;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .calculator-stats {
    gap: var(--space-lg);
  }

  .comment-metadata,
  .comment-content,
  .reply {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.25rem;
  }

  .card {
    padding: var(--space-md);
  }
}
/* BREADCRUMBS - Added for visibility */
.breadcrumbs { font-size: 0.875rem; margin-bottom: 1rem; color: #6b7280; }
.breadcrumbs a { color: #6b7280; text-decoration: underline; }
.breadcrumbs a:hover { color: #2563eb; }
.breadcrumbs span { color: #1f2937; }
.calculator-hero .breadcrumbs-wrapper { margin-bottom: 1rem; }
.calculator-hero .breadcrumbs { color: #fff !important; }
.calculator-hero .breadcrumbs a { color: #fff !important; text-decoration: underline; opacity: 0.9; }
.calculator-hero .breadcrumbs a:hover { opacity: 1; }
.calculator-hero .breadcrumbs span { color: #fff !important; }

/* Single post/page layout fixes */
.single-post .container,
.single-page .container { padding: var(--space-2xl) var(--space-lg); }
.entry-meta { font-size: var(--font-size-sm); color: var(--color-text-light); margin-bottom: var(--space-lg); }
.entry-meta .meta-separator { margin: 0 var(--space-xs); }
.entry-content { line-height: 1.8; }
.entry-content p { margin-bottom: var(--space-md); }
.entry-content h2, .entry-content h3, .entry-content h4 { margin-top: var(--space-xl); margin-bottom: var(--space-md); }
.entry-footer { margin-top: var(--space-2xl); padding-top: var(--space-xl); border-top: 1px solid var(--color-border); }

/* ============================================
   CALCULATOR STATS & BREADCRUMB FIXES
   ============================================ */

/* Stats alignment fix */
.calculator-stats {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.stat-item svg {
    flex-shrink: 0;
    opacity: 0.9;
}

.stat-value {
    font-weight: 600;
    font-size: var(--font-size-base);
}

.stat-label {
    color: var(--color-text-light);
}

/* Breadcrumbs white text on calculator hero */
.calculator-hero .breadcrumbs-wrapper,
.calculator-hero .breadcrumbs,
.calculator-hero .breadcrumbs a,
.calculator-hero .breadcrumbs span {
    color: #ffffff !important;
}

.calculator-hero .breadcrumbs a:hover {
    opacity: 0.8;
}


/* Stats and Breadcrumb Fixes */
.calculator-stats {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.stat-item svg {
    flex-shrink: 0;
    opacity: 0.9;
}

.stat-value {
    font-weight: 600;
    font-size: var(--font-size-base);
}

.stat-label {
    color: var(--color-text-light);
}

.calculator-hero .breadcrumbs-wrapper,
.calculator-hero .breadcrumbs,
.calculator-hero .breadcrumbs a,
.calculator-hero .breadcrumbs span {
    color: #ffffff !important;
}

.calculator-hero .breadcrumbs a:hover {
    opacity: 0.8;
}