/*
Theme Name: Immersa Builder
Theme URI: https://themefreex.com/immersa-builder/
Author: ThemeFreex
Author URI: https://themefreex.com/
Description: A lightweight, blazing-fast WordPress theme with guided site setup and AI content tools. Choose your business type, pick a starter design, select fonts and colors, and launch a polished website in minutes. Starter sites for agencies, coaches, and local businesses included free. AI blog generator and slug optimizer included with 100 free monthly credits. Gutenberg-ready with WordPress 7.0 real-time collaboration support, WooCommerce 10.6 compatible, and fully responsive. The most complete starter theme framework for WordPress.
Version: 1.0.0
Tested up to: 7.0
Requires at least: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: immersa-builder
Tags: one-column, two-columns, left-sidebar, right-sidebar, wide-blocks, block-patterns, block-styles, custom-background, custom-colors, custom-header, custom-logo, custom-menu, editor-style, featured-images, footer-widgets, full-width-template, rtl-language-support, sticky-post, theme-options, threaded-comments, translation-ready, blog, e-commerce, portfolio
*/

/* ============================================
   Design Token System — CSS Custom Properties
   ============================================ */

:root {
  /* Colors — overridden by starter themes via theme mods */
  --immersa-primary: #2563EB;
  --immersa-primary-hover: #1D4ED8;
  --immersa-secondary: #0F172A;
  --immersa-accent: #38BDF8;
  --immersa-text: #1E293B;
  --immersa-text-light: #64748B;
  --immersa-bg: #FFFFFF;
  --immersa-bg-alt: #F8FAFC;
  --immersa-border: #E2E8F0;

  /* Typography */
  --immersa-font-heading: 'Inter', sans-serif;
  --immersa-font-body: 'Inter', sans-serif;
  --immersa-font-size-base: 16px;
  --immersa-line-height: 1.6;

  /* Spacing */
  --immersa-spacing-xs: 0.5rem;
  --immersa-spacing-sm: 1rem;
  --immersa-spacing-md: 1.5rem;
  --immersa-spacing-lg: 2rem;
  --immersa-spacing-xl: 3rem;
  --immersa-spacing-2xl: 5rem;

  /* Layout */
  --immersa-container: 1200px;
  --immersa-container-narrow: 800px;
  --immersa-border-radius: 8px;
  --immersa-shadow: 0 1px 3px rgba(0,0,0,0.1);
  --immersa-shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  font-size: var(--immersa-font-size-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--immersa-font-body);
  font-size: 1rem;
  line-height: var(--immersa-line-height);
  color: var(--immersa-text);
  background-color: var(--immersa-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--immersa-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus {
  color: var(--immersa-primary-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--immersa-primary);
  outline-offset: 2px;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--immersa-font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--immersa-spacing-sm);
  color: var(--immersa-secondary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

ul, ol {
  margin-bottom: var(--immersa-spacing-sm);
  padding-left: var(--immersa-spacing-lg);
}

blockquote {
  border-left: 4px solid var(--immersa-primary);
  padding-left: var(--immersa-spacing-md);
  margin: var(--immersa-spacing-md) 0;
  font-style: italic;
  color: var(--immersa-text-light);
}

cite {
  display: block;
  margin-top: var(--immersa-spacing-xs);
  font-style: normal;
  font-size: 0.875rem;
  color: var(--immersa-text-light);
}

/* ============================================
   Layout
   ============================================ */

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

.immersa-site-content {
  flex: 1;
}

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

.immersa-container--narrow {
  max-width: var(--immersa-container-narrow);
}

.immersa-grid {
  display: grid;
  gap: var(--immersa-spacing-lg);
}

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

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

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

/* ============================================
   Header
   ============================================ */

.immersa-header {
  background-color: var(--immersa-bg);
  border-bottom: 1px solid var(--immersa-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.immersa-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--immersa-spacing-md) 0;
  gap: var(--immersa-spacing-md);
}

.immersa-header__logo img {
  max-height: 48px;
  width: auto;
}

.immersa-header__logo a {
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--immersa-secondary);
}

.immersa-header__nav {
  display: flex;
  align-items: center;
  gap: var(--immersa-spacing-md);
}

.immersa-header__nav ul {
  display: flex;
  list-style: none;
  gap: var(--immersa-spacing-md);
  margin: 0;
  padding: 0;
}

.immersa-header__nav a {
  color: var(--immersa-text);
  font-weight: 500;
  text-decoration: none;
  padding: var(--immersa-spacing-xs) 0;
}

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

.immersa-header__cta {
  display: inline-block;
  background-color: var(--immersa-primary);
  color: #fff;
  padding: 0.625rem 1.25rem;
  border-radius: var(--immersa-border-radius);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.immersa-header__cta:hover {
  background-color: var(--immersa-primary-hover);
  text-decoration: none;
}

/* Header: Centered */
.immersa-header--centered .immersa-header__inner {
  flex-direction: column;
  text-align: center;
}

.immersa-header--centered .immersa-header__nav ul {
  justify-content: center;
  flex-wrap: wrap;
}

/* Header: Minimal */
.immersa-header--minimal .immersa-header__inner {
  position: relative;
}

.immersa-header--minimal .immersa-header__nav-toggle {
  display: block;
}

/* Mobile Menu Toggle */
.immersa-header__nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--immerse-spacing-xs);
  width: 44px;
  height: 44px;
  position: relative;
}

.immersa-header__nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--immersa-text);
  margin: 6px auto;
  transition: all 0.3s ease;
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ============================================
   Footer
   ============================================ */

.immersa-footer {
  background-color: var(--immersa-secondary);
  color: var(--immersa-bg);
  padding-top: var(--immersa-spacing-xl);
  margin-top: var(--immerse-spacing-2xl);
}

.immersa-footer__widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--immerse-spacing-lg);
  padding-bottom: var(--immerse-spacing-lg);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.immersa-footer__widget-title {
  color: #fff;
  font-size: 1.125rem;
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-footer__widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.immersa-footer__widget li {
  margin-bottom: var(--immersa-spacing-xs);
}

.immersa-footer__widget a {
  color: var(--immersa-accent);
  text-decoration: none;
}

.immersa-footer__widget a:hover {
  text-decoration: underline;
}

.immersa-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--immersa-spacing-md) 0;
  flex-wrap: wrap;
  gap: var(--immersa-spacing-sm);
}

.immersa-footer__copyright {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
}

.immersa-footer__social {
  display: flex;
  gap: var(--immersa-spacing-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}

.immersa-footer__social a {
  color: rgba(255,255,255,0.7);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.immersa-footer__social a:hover {
  color: #fff;
  background-color: rgba(255,255,255,0.1);
}

/* Footer: Minimal */
.immersa-footer--minimal .immersa-footer__widgets {
  display: none;
}

.immersa-footer--minimal .immersa-footer__bottom {
  justify-content: center;
  border-bottom: none;
  padding: var(--immersa-spacing-md) 0;
}

/* Footer Branding (Free version) */
.immersa-footer-branding {
  text-align: center;
  padding: var(--immersa-spacing-sm) 0;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

.immersa-footer-branding a {
  color: var(--immersa-accent);
  text-decoration: none;
}

.immersa-footer-branding a:hover {
  text-decoration: underline;
}

/* ============================================
   Main Content Areas
   ============================================ */

.immersa-main {
  padding: var(--immersa-spacing-xl) 0;
}

.immersa-content-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--immersa-spacing-xl);
}

.immersa-content-wrapper.has-sidebar {
  grid-template-columns: 1fr 300px;
}

.immersa-content-wrapper.sidebar-left {
  grid-template-columns: 300px 1fr;
}

/* ============================================
   Sidebar
   ============================================ */

.immersa-sidebar {
  padding: var(--immersa-spacing-md);
  background-color: var(--immersa-bg-alt);
  border-radius: var(--immersa-border-radius);
}

.immersa-sidebar .widget {
  margin-bottom: var(--immersa-spacing-lg);
}

.immersa-sidebar .widget-title {
  font-size: 1.125rem;
  margin-bottom: var(--immersa-spacing-sm);
  padding-bottom: var(--immersa-spacing-xs);
  border-bottom: 2px solid var(--immersa-primary);
}

/* ============================================
   Blog & Posts
   ============================================ */

.immersa-post {
  margin-bottom: var(--immersa-spacing-xl);
}

.immersa-post__header {
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-post__title {
  margin-bottom: var(--immersa-spacing-xs);
}

.immersa-post__title a {
  text-decoration: none;
  color: var(--immersa-secondary);
}

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

.immersa-post__meta {
  font-size: 0.875rem;
  color: var(--immerse-text-light);
  display: flex;
  flex-wrap: wrap;
  gap: var(--immersa-spacing-sm);
}

.immersa-post__meta time,
.immersa-post__meta .author,
.immersa-post__meta .category {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.immersa-post__thumbnail {
  margin-bottom: var(--immersa-spacing-md);
  border-radius: var(--immersa-border-radius);
  overflow: hidden;
}

.immersa-post__thumbnail img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.immersa-post__content {
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-post__excerpt {
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-post__read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  color: var(--immersa-primary);
}

/* Blog Grid */
.immersa-blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--immersa-spacing-lg);
}

.immersa-blog-grid .immersa-post {
  background-color: var(--immersa-bg);
  border: 1px solid var(--immersa-border);
  border-radius: var(--immersa-border-radius);
  padding: var(--immersa-spacing-md);
  transition: box-shadow 0.2s ease;
}

.immersa-blog-grid .immersa-post:hover {
  box-shadow: var(--immersa-shadow-lg);
}

/* ============================================
   Single Post
   ============================================ */

.immersa-single-post__content {
  font-size: 1.125rem;
  line-height: 1.8;
}

.immersa-single-post__content h2,
.immersa-single-post__content h3 {
  margin-top: var(--immersa-spacing-lg);
}

.immersa-single-post__content ul,
.immersa-single-post__content ol {
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-single-post__content img {
  border-radius: var(--immersa-border-radius);
}

.immersa-single-post__tags {
  margin-top: var(--immersa-spacing-lg);
  padding-top: var(--immersa-spacing-md);
  border-top: 1px solid var(--immersa-border);
}

.immersa-single-post__tags span {
  font-weight: 600;
  margin-right: var(--immersa-spacing-xs);
}

.immersa-single-post__tags a {
  display: inline-block;
  background-color: var(--immersa-bg-alt);
  color: var(--immerse-text-light);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.875rem;
  margin-right: var(--immersa-spacing-xs);
  margin-bottom: var(--immersa-spacing-xs);
}

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

/* Post Navigation */
.immersa-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--immersa-spacing-lg);
  margin-top: var(--immersa-spacing-xl);
  padding-top: var(--immersa-spacing-lg);
  border-top: 1px solid var(--immersa-border);
}

.immersa-post-nav__link {
  display: block;
  padding: var(--immersa-spacing-md);
  background-color: var(--immersa-bg-alt);
  border-radius: var(--immersa-border-radius);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.immersa-post-nav__link:hover {
  background-color: var(--immersa-border);
}

.immersa-post-nav__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--immersa-primary);
  margin-bottom: var(--immersa-spacing-xs);
}

.immersa-post-nav__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--immersa-secondary);
}

/* ============================================
   Archive
   ============================================ */

.immersa-archive__header {
  margin-bottom: var(--immersa-spacing-xl);
  padding-bottom: var(--immersa-spacing-lg);
  border-bottom: 1px solid var(--immersa-border);
}

.immersa-archive__title {
  margin-bottom: var(--immersa-spacing-xs);
}

.immersa-archive__description {
  color: var(--immerse-text-light);
  font-size: 1.125rem;
}

/* ============================================
   Comments
   ============================================ */

.immersa-comments {
  margin-top: var(--immersa-spacing-xl);
  padding-top: var(--immersa-spacing-lg);
  border-top: 1px solid var(--immersa-border);
}

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

.immersa-comment {
  padding: var(--immersa-spacing-md);
  background-color: var(--immersa-bg-alt);
  border-radius: var(--immersa-border-radius);
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-comment__header {
  display: flex;
  align-items: center;
  gap: var(--immersa-spacing-sm);
  margin-bottom: var(--immersa-spacing-xs);
}

.immersa-comment__avatar {
  border-radius: 50%;
}

.immersa-comment__author {
  font-weight: 600;
}

.immersa-comment__date {
  font-size: 0.875rem;
  color: var(--immerse-text-light);
}

.immersa-comment__content {
  margin-bottom: var(--immersa-spacing-sm);
}

.immersa-comment__reply {
  font-size: 0.875rem;
}

.immersa-comment-respond {
  margin-top: var(--immersa-spacing-lg);
}

/* ============================================
   Pagination
   ============================================ */

.immersa-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--immersa-spacing-xs);
  margin-top: var(--immersa-spacing-xl);
}

.immersa-pagination a,
.immersa-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--immersa-border-radius);
  font-weight: 500;
  text-decoration: none;
}

.immersa-pagination a {
  background-color: var(--immersa-bg-alt);
  color: var(--immersa-text);
}

.immersa-pagination a:hover {
  background-color: var(--immersa-border);
}

.immersa-pagination .current {
  background-color: var(--immersa-primary);
  color: #fff;
}

/* ============================================
   404 Page
   ============================================ */

.immersa-404 {
  text-align: center;
  padding: var(--immersa-spacing-2xl) 0;
}

.immersa-404__code {
  font-size: 8rem;
  font-weight: 900;
  color: var(--immersa-primary);
  line-height: 1;
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-404__message {
  font-size: 1.5rem;
  margin-bottom: var(--immersa-spacing-lg);
  color: var(--immersa-text-light);
}

/* ============================================
   Search
   ============================================ */

.immersa-search-form {
  display: flex;
  gap: 0;
  max-width: 600px;
  margin: 0 auto var(--immersa-spacing-lg);
}

.immersa-search-form__input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--immersa-border);
  border-right: none;
  border-radius: var(--immersa-border-radius) 0 0 var(--immersa-border-radius);
  font-size: 1rem;
}

.immersa-search-form__submit {
  padding: 0.75rem 1.5rem;
  background-color: var(--immersa-primary);
  color: #fff;
  border: none;
  border-radius: 0 var(--immersa-border-radius) var(--immersa-border-radius) 0;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.immersa-search-form__submit:hover {
  background-color: var(--immersa-primary-hover);
}

/* ============================================
   Buttons (Generic)
   ============================================ */

.immersa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--immersa-spacing-xs);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--immersa-border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.immersa-btn--primary:hover {
  background-color: var(--immersa-primary-hover);
}

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

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

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

.immersa-btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.immersa-btn--lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================
   Cards
   ============================================ */

.immersa-card {
  background-color: var(--immersa-bg);
  border: 1px solid var(--immersa-border);
  border-radius: var(--immersa-border-radius);
  padding: var(--immersa-spacing-lg);
  transition: box-shadow 0.2s ease;
}

.immersa-card:hover {
  box-shadow: var(--immersa-shadow-lg);
}

.immersa-card__title {
  margin-bottom: var(--immersa-spacing-sm);
}

.immersa-card__content {
  color: var(--immerse-text-light);
}

/* ============================================
   Forms
   ============================================ */

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

.immersa-form-label {
  display: block;
  margin-bottom: var(--immersa-spacing-xs);
  font-weight: 500;
}

.immersa-form-input,
.immersa-form-textarea,
.immersa-form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--immersa-border);
  border-radius: var(--immersa-border-radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

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

.immersa-form-textarea {
  min-height: 150px;
  resize: vertical;
}

.immersa-form-error {
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: 4px;
}

/* ============================================
   Breadcrumb
   ============================================ */

.immersa-breadcrumb {
  font-size: 0.875rem;
  color: var(--immerse-text-light);
  margin-bottom: var(--immersa-spacing-md);
}

.immersa-breadcrumb a {
  color: var(--immerse-text-light);
}

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

.immersa-breadcrumb__separator {
  margin: 0 var(--immersa-spacing-xs);
}

/* ============================================
   WooCommerce Base
   ============================================ */

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

.woocommerce ul.products li.product {
  background-color: var(--immersa-bg);
  border: 1px solid var(--immersa-border);
  border-radius: var(--immersa-border-radius);
  padding: var(--immersa-spacing-md);
  text-align: center;
  transition: box-shadow 0.2s ease;
}

.woocommerce ul.products li.product:hover {
  box-shadow: var(--immersa-shadow-lg);
}

.woocommerce ul.products li.product img {
  margin-bottom: var(--immersa-spacing-md);
  border-radius: var(--immersa-border-radius);
}

.woocommerce ul.products li.product .woocommerce-loop-product__title {
  font-size: 1.125rem;
  margin-bottom: var(--immersa-spacing-xs);
}

.woocommerce ul.products li.product .price {
  color: var(--immersa-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.woocommerce a.button,
.woocommerce button.button,
.woocommerce input.button {
  background-color: var(--immersa-primary);
  color: #fff;
  border: none;
  border-radius: var(--immersa-border-radius);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
}

.woocommerce a.button:hover,
.woocommerce button.button:hover,
.woocommerce input.button:hover {
  background-color: var(--immersa-primary-hover);
}

/* ============================================
   Utility Classes
   ============================================ */

.immersa-text-center { text-align: center; }
.immersa-text-left { text-align: left; }
.immersa-text-right { text-align: right; }
.immersa-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.immersa-mt-sm { margin-top: var(--immersa-spacing-sm); }
.immersa-mt-md { margin-top: var(--immersa-spacing-md); }
.immersa-mt-lg { margin-top: var(--immersa-spacing-lg); }
.immersa-mt-xl { margin-top: var(--immersa-spacing-xl); }
.immersa-mb-sm { margin-bottom: var(--immersa-spacing-sm); }
.immersa-mb-md { margin-bottom: var(--immersa-spacing-md); }
.immersa-mb-lg { margin-bottom: var(--immersa-spacing-lg); }
.immersa-mb-xl { margin-bottom: var(--immersa-spacing-xl); }

/* ============================================
   Responsive — Mobile First
   ============================================ */

/* Tablet: 768px */
@media (max-width: 1023px) {
  .immersa-content-wrapper.has-sidebar,
  .immersa-content-wrapper.sidebar-left {
    grid-template-columns: 1fr;
  }

  .immersa-sidebar {
    order: 2;
  }

  .immersa-blog-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* Mobile: 480px */
@media (max-width: 767px) {
  .immersa-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--immersa-bg);
    padding: var(--immersa-spacing-md);
    border-bottom: 1px solid var(--immersa-border);
    box-shadow: var(--immersa-shadow);
  }

  .immersa-header__nav.is-open {
    display: block;
  }

  .immersa-header__nav ul {
    flex-direction: column;
  }

  .immersa-header__nav-toggle {
    display: block;
  }

  .immersa-header__cta {
    display: none;
  }

  .immersa-footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .immersa-post-nav {
    grid-template-columns: 1fr;
  }

  .immersa-404__code {
    font-size: 5rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
}

/* Small Mobile: 320px */
@media (max-width: 479px) {
  .immersa-container {
    padding: 0 var(--immersa-spacing-sm);
  }

  .immersa-blog-grid {
    grid-template-columns: 1fr;
  }

  .immersa-search-form {
    flex-direction: column;
  }

  .immersa-search-form__input {
    border-right: 1px solid var(--immersa-border);
    border-bottom: none;
    border-radius: var(--immersa-border-radius) var(--immersa-border-radius) 0 0;
  }

  .immersa-search-form__submit {
    border-radius: 0 0 var(--immersa-border-radius) var(--immersa-border-radius);
  }
}

/* ============================================
   Accessibility — Focus Indicators
   ============================================ */

*:focus-visible {
  outline: 2px solid var(--immersa-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -9999px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--immersa-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--immersa-border-radius) var(--immersa-border-radius);
  z-index: 9999;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .immersa-header,
  .immersa-footer,
  .immersa-sidebar,
  .immersa-breadcrumb,
  .immersa-pagination {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }
}