/*
Theme Name: OnMSFT
Theme URI: https://www.onmsft.com
Author: OnMSFT Team
Author URI: https://www.onmsft.com
Description: A clean, professional Microsoft-focused technology news theme faithfully recreating the OnMSFT.com design (2020-2022 era). Features teal accent branding, Montserrat typography, secondary category nav bar with Microsoft Fabric Icons, 70/30 content-sidebar split, and responsive layout.
Version: 1.0.0
Requires at least: 5.6
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: onmsft
Tags: blog, news, technology, one-column, two-columns, custom-menu, featured-images, post-formats, sticky-post, translation-ready
*/

/* ==========================================================================
   CSS CUSTOM PROPERTIES -- OnMSFT Brand Palette
   ========================================================================== */

:root {
    /* OnMSFT Brand Colors (exact from design spec) */
    --onmsft-teal: #217178;
    --onmsft-teal-bright: #159689;
    --onmsft-bg: #ffffff;
    --onmsft-bg-alt: #fbfbfb;
    --onmsft-text: #3a3a3a;
    --onmsft-text-dark: #201f1e;
    --onmsft-nav-hover: #83838b;
    --onmsft-dropdown-bg: #303030;
    --onmsft-dropdown-hover: #474747;

    /* Semantic aliases */
    --color-accent: var(--onmsft-teal);
    --color-accent-bright: var(--onmsft-teal-bright);
    --color-bg: var(--onmsft-bg);
    --color-bg-alt: var(--onmsft-bg-alt);
    --color-text: var(--onmsft-text);
    --color-text-dark: var(--onmsft-text-dark);
    --color-text-inverse: #ffffff;
    --color-text-secondary: #6e6e6e;
    --color-text-light: #a0a0a0;
    --color-link: var(--onmsft-teal-bright);
    --color-link-hover: var(--onmsft-teal);
    --color-border: #e8e8e8;

    /* Typography: Montserrat for headings, system font for body */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
    --font-mono: 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;

    --text-xs:   0.75rem;     /* 12px */
    --text-sm:   0.875rem;    /* 14px */
    --text-base: 1rem;        /* 16px */
    --text-lg:   1.125rem;    /* 18px */
    --text-xl:   1.25rem;     /* 20px */
    --text-2xl:  1.5rem;      /* 24px */
    --text-3xl:  1.875rem;    /* 30px */
    --text-4xl:  2.25rem;     /* 36px */
    --text-5xl:  3rem;        /* 48px */

    --leading-tight:  1.25;
    --leading-snug:   1.375;
    --leading-normal: 1.6;
    --leading-relaxed:1.75;

    --weight-normal:  400;
    --weight-medium:  500;
    --weight-semibold:600;
    --weight-bold:    700;

    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Layout */
    --container-max:    1200px;
    --container-narrow: 780px;
    --sidebar-width:    30%;
    --content-width:    70%;
    --header-height:    64px;

    /* Borders & Radius */
    --radius-sm:  3px;
    --radius-md:  6px;
    --radius-lg:  10px;
    --radius-xl:  16px;
    --radius-full:9999px;

    /* Shadows (matching ms-depth classes) */
    --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md:   0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg:   0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl:   0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --ms-depth-4:  0 1.6px 3.6px 0 rgba(0,0,0,.132), 0 0.3px 0.9px 0 rgba(0,0,0,.108);
    --ms-depth-16: 0 6.4px 14.4px 0 rgba(0,0,0,.132), 0 1.2px 3.6px 0 rgba(0,0,0,.108);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index scale */
    --z-dropdown:  100;
    --z-sticky:    200;
    --z-header:    300;
    --z-overlay:   400;
    --z-modal:     500;
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--weight-normal);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* Headings use Montserrat 700 */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    color: var(--color-text-dark);
}

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

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

a:hover {
    color: var(--color-link-hover);
}

a:focus-visible {
    outline: 2px solid var(--onmsft-teal);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

table {
    border-collapse: collapse;
    width: 100%;
}

/* Screen reader only */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--color-bg);
    clip: auto !important;
    clip-path: none;
    color: var(--color-text);
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: var(--z-modal);
}

/* Microsoft Fabric depth utility classes */
.ms-depth-4 {
    box-shadow: var(--ms-depth-4);
}

.ms-depth-16 {
    box-shadow: var(--ms-depth-16);
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

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

.site-content {
    padding-top: var(--space-10);
    padding-bottom: var(--space-16);
    min-height: 60vh;
}

/* 70/30 Content-Sidebar Split */
.content-area {
    display: flex;
    gap: var(--space-10);
    align-items: flex-start;
}

.content-area .main-content {
    width: var(--content-width);
    min-width: 0;
}

.content-area .sidebar-area,
.content-area .sidebar,
.content-area .is-right-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

/* ==========================================================================
   PRIMARY HEADER
   White background, logo left, nav right, social icons, search
   ========================================================================== */

.site-header {
    background-color: var(--color-bg);
    color: var(--color-text);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid var(--color-border);
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--space-4);
}

/* Logo / Site Brand */
.site-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-brand a,
.site-brand__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.site-brand a:hover {
    opacity: 0.85;
}

.site-brand .custom-logo,
.site-logo img {
    height: 40px;
    width: auto;
}

.site-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    letter-spacing: -0.02em;
    line-height: 1;
    margin: 0;
}

.site-title span.on {
    color: var(--color-text-dark);
}

.site-title span.msft {
    color: var(--onmsft-teal);
}

.site-title span.dot {
    color: var(--color-text-dark);
    font-weight: var(--weight-normal);
}

.site-description {
    display: none;
}

/* Primary Navigation (right side of header) */
.primary-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
}

.primary-nav .menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.primary-nav .menu li {
    position: relative;
}

.primary-nav .menu li a {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}

.primary-nav .menu li a:hover,
.primary-nav .menu li.current-menu-item > a,
.primary-nav .menu li.current_page_item > a {
    background-color: rgba(33, 113, 120, 0.08);
    color: var(--onmsft-teal);
}

/* Dropdown sub-menus */
.primary-nav .menu li .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--space-2) 0;
    z-index: var(--z-dropdown);
}

.primary-nav .menu li:hover > .sub-menu {
    display: block;
}

.primary-nav .menu li .sub-menu a {
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-5);
    border-radius: 0;
    color: var(--color-text);
}

.primary-nav .menu li .sub-menu a:hover {
    background-color: var(--color-bg-alt);
    color: var(--onmsft-teal);
}

/* Header Social Icons */
.header-social {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.header-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-alt);
    color: var(--onmsft-teal-bright);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-social__link:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-text-dark);
}

.header-social__link svg {
    width: 16px;
    height: 16px;
}

/* Header Search */
.header-search {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header-search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.header-search-toggle:hover {
    background-color: rgba(33, 113, 120, 0.08);
    color: var(--onmsft-teal);
}

.header-search-toggle svg {
    width: 20px;
    height: 20px;
}

.header-search-form {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    background-color: var(--color-bg);
    padding: var(--space-4) 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: var(--z-dropdown);
    border-bottom: 2px solid var(--onmsft-teal);
}

.header-search-form.is-active {
    display: block;
}

.header-search-form .search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.header-search-form .search-field {
    flex: 1;
    padding: var(--space-3) var(--space-5);
    background-color: var(--color-bg-alt);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--color-text);
    font-size: var(--text-base);
    outline: none;
    transition: border-color var(--transition-fast);
}

.header-search-form .search-field::placeholder {
    color: var(--color-text-light);
}

.header-search-form .search-field:focus {
    border-color: var(--onmsft-teal);
}

.header-search-form .search-submit {
    padding: var(--space-3) var(--space-6);
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
    border: 2px solid var(--onmsft-teal);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.header-search-form .search-submit:hover {
    background-color: var(--onmsft-teal-bright);
    border-color: var(--onmsft-teal-bright);
}

/* Mobile Menu Toggle (hamburger) */
.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background-color: rgba(33, 113, 120, 0.08);
}

.mobile-menu-toggle .hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 22px;
}

.mobile-menu-toggle .hamburger span {
    display: block;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.is-active .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================================================
   SECONDARY NAVIGATION -- Teal Category Bar with Fabric Icons
   Background: #217178, White text, 18px font-weight 600
   ========================================================================== */

.secondary-navigation {
    background-color: var(--onmsft-teal);
}

.secondary-nav-inner {
    display: flex;
    align-items: center;
}

.secondary-nav-toggle {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: #ffffff;
    font-weight: var(--weight-semibold);
    font-size: var(--text-base);
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
}

.secondary-nav-toggle i {
    font-size: 16px;
}

.secondary-nav-menu {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Hide scrollbar but allow horizontal scroll */
.secondary-nav-menu::-webkit-scrollbar {
    display: none;
}

.secondary-nav-menu {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.secondary-menu,
.secondary-navigation .main-nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    white-space: nowrap;
}

.secondary-menu li,
.secondary-navigation .main-nav ul li {
    position: relative;
}

.secondary-menu li a,
.secondary-navigation .main-nav ul li a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: #ffffff;
    padding-left: 28px;
    padding-right: 28px;
    line-height: 54px;
    font-weight: 600;
    text-transform: initial;
    font-size: 18px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.secondary-menu li a:hover,
.secondary-navigation .main-nav ul li:hover > a {
    color: #ffffff;
    background-color: var(--onmsft-nav-hover);
}

.secondary-menu li a i,
.secondary-navigation .main-nav ul li a i {
    font-size: 16px;
    flex-shrink: 0;
}

/* Secondary nav dropdown (sub-menus) */
.secondary-menu li .sub-menu,
.secondary-navigation .main-nav ul ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--onmsft-dropdown-bg);
    min-width: 200px;
    z-index: var(--z-dropdown);
    list-style: none;
    padding: 0;
    margin: 0;
}

.secondary-menu li:hover > .sub-menu,
.secondary-navigation .main-nav ul li:hover > ul {
    display: block;
}

.secondary-menu li .sub-menu li a,
.secondary-navigation .main-nav ul ul li a {
    line-height: 44px;
    font-size: 15px;
    padding-left: 20px;
    padding-right: 20px;
}

.secondary-menu li .sub-menu li a:hover,
.secondary-navigation .main-nav ul ul li:hover > a {
    background-color: var(--onmsft-dropdown-hover);
}

/* Current menu item in secondary nav */
.secondary-navigation .main-nav ul li[class*="current-menu-"] > a,
.secondary-menu li.current-menu-item > a,
.secondary-menu li.current_page_item > a {
    background-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   MOBILE NAVIGATION
   ========================================================================== */

.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-alt);
    z-index: var(--z-overlay);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-nav.is-active {
    display: block;
}

.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-overlay) - 1);
}

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

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg);
}

.mobile-nav-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
}

.mobile-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-nav-close:hover {
    color: var(--color-text-dark);
    background-color: rgba(0, 0, 0, 0.05);
}

.mobile-nav .menu {
    padding: var(--space-4) 0;
    list-style: none;
}

.mobile-nav .menu li a {
    display: block;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-lg);
    font-weight: var(--weight-medium);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-fast);
}

.mobile-nav .menu li a:hover {
    background-color: rgba(33, 113, 120, 0.05);
    color: var(--onmsft-teal);
}

.mobile-nav .menu li.current-menu-item > a {
    color: var(--onmsft-teal);
    background-color: rgba(33, 113, 120, 0.04);
}

.mobile-nav .sub-menu {
    padding-left: var(--space-6);
}

.mobile-nav .sub-menu a {
    font-size: var(--text-base);
}

.mobile-nav-search {
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav-search .search-form {
    display: flex;
}

.mobile-nav-search .search-field {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--color-text);
    font-size: var(--text-base);
    outline: none;
}

.mobile-nav-search .search-field::placeholder {
    color: var(--color-text-light);
}

.mobile-nav-search .search-submit {
    padding: var(--space-3) var(--space-5);
    background-color: var(--onmsft-teal);
    border: 2px solid var(--onmsft-teal);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-inverse);
    font-weight: var(--weight-semibold);
    cursor: pointer;
}

.mobile-nav-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.mobile-nav-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    color: var(--onmsft-teal-bright);
    transition: color var(--transition-fast);
}

.mobile-nav-social a:hover {
    color: var(--color-text-dark);
}

/* ==========================================================================
   FOOTER -- Dark background (#201f1e) with widgets, social, copyright
   ========================================================================== */

.site-footer {
    background-color: #201f1e;
    color: #d2d0ce;
}

.site-footer a {
    color: #d2d0ce;
    transition: color var(--transition-fast);
}

.site-footer a:hover {
    color: #ffffff;
}

/* Footer Widgets Area */
.footer-widgets {
    padding: var(--space-12) 0 var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-widgets-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-8);
}

/* Individual widget column */
.footer-widget h4,
.footer-widget .widget-title {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: var(--weight-bold);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--onmsft-teal);
    display: inline-block;
}

.footer-widget ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-widget ul li {
    margin-bottom: var(--space-2);
}

.footer-widget ul li a {
    font-size: var(--text-sm);
    line-height: 1.8;
}

.footer-widget ul li a:hover {
    color: var(--onmsft-teal-bright);
}

/* Footer About (Column 1) */
.footer-brand {
    margin-bottom: var(--space-4);
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    text-decoration: none;
    display: inline-block;
}

.footer-logo-text .on {
    color: #ffffff;
}

.footer-logo-text .msft {
    color: var(--onmsft-teal-bright);
}

.footer-logo-text .dot {
    color: #d2d0ce;
}

.footer-logo .custom-logo-link img {
    max-height: 50px;
    width: auto;
}

.footer-about-text {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: #a19f9d;
    margin-bottom: var(--space-4);
}

/* Footer Social Icons */
.footer-social {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.1);
    color: #d2d0ce;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.footer-social__link:hover {
    background-color: var(--onmsft-teal);
    color: #ffffff;
}

/* Footer Bottom (copyright + nav) */
.footer-bottom {
    padding: var(--space-4) 0;
    background-color: #1a1918;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: #a19f9d;
}

.footer-copyright a {
    color: #d2d0ce;
}

.footer-copyright a:hover {
    color: var(--onmsft-teal-bright);
}

.footer-nav {
    display: flex;
    gap: var(--space-6);
}

.footer-nav .footer-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-6);
}

.footer-nav a,
.footer-menu a {
    font-size: var(--text-sm);
    color: #a19f9d;
}

.footer-nav a:hover,
.footer-menu a:hover {
    color: #ffffff;
}

/* ==========================================================================
   SINGLE ARTICLE
   ========================================================================== */

.single-article {
    background-color: var(--color-bg);
    margin-bottom: var(--space-10);
}

/* Featured Image (Full-width above content) */
.article-hero {
    position: relative;
    overflow: hidden;
    background-color: #e8e8e8;
    margin-bottom: var(--space-8);
}

.article-hero img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

/* Article Header */
.article-header {
    padding: var(--space-4) 0;
}

.article-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    color: var(--color-text-dark);
    margin-bottom: var(--space-5);
    letter-spacing: -0.02em;
}

/* Article Meta Bar with | separators */
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    padding-bottom: var(--space-6);
    margin-bottom: var(--space-8);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}

.article-meta.single-meta {
    box-shadow: var(--ms-depth-16);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    border-bottom: none;
    margin-bottom: var(--space-6);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.article-meta-item svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    opacity: 0.6;
}

.article-meta .author-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.article-meta .author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.article-meta .author-name a {
    color: var(--color-text);
    font-weight: var(--weight-semibold);
}

.article-meta .author-name a:hover {
    color: var(--onmsft-teal);
}

.article-meta .meta-separator {
    color: var(--color-text-light);
    font-weight: var(--weight-normal);
}

.article-meta .meta-categories a {
    color: var(--onmsft-teal-bright);
    font-weight: var(--weight-medium);
}

.article-meta .meta-categories a:hover {
    color: var(--onmsft-teal);
}

.article-meta .cat-sep {
    color: var(--color-text-light);
    margin: 0 var(--space-1);
}

/* Article Body Content */
.article-body {
    padding-bottom: var(--space-8);
}

.article-content {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

.article-content > *:first-child {
    margin-top: 0;
}

.article-content p {
    margin-bottom: var(--space-6);
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-top: var(--space-12);
    margin-bottom: var(--space-5);
    line-height: var(--leading-tight);
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--color-text-dark);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.article-content h4 {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-text-dark);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.article-content a {
    color: var(--onmsft-teal-bright);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.article-content a:hover {
    color: var(--onmsft-teal);
    text-decoration-thickness: 2px;
}

.article-content strong,
.article-content b {
    font-weight: var(--weight-semibold);
    color: var(--color-text-dark);
}

/* Lists */
.article-content ul,
.article-content ol {
    margin-bottom: var(--space-6);
    padding-left: var(--space-8);
}

.article-content ul {
    list-style-type: disc;
}

.article-content ol {
    list-style-type: decimal;
}

.article-content li {
    margin-bottom: var(--space-2);
    padding-left: var(--space-2);
}

.article-content li::marker {
    color: var(--onmsft-teal);
}

/* Blockquote */
.article-content blockquote {
    margin: var(--space-8) 0;
    padding: var(--space-6) var(--space-8);
    border-left: 4px solid var(--onmsft-teal);
    background-color: var(--color-bg-alt);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}

.article-content blockquote p:last-child {
    margin-bottom: 0;
}

/* Code */
.article-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: #f3f3f3;
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    color: var(--color-text);
}

.article-content pre {
    margin: var(--space-8) 0;
    padding: var(--space-6);
    background-color: #1f1f1f;
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.article-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    color: #e0e0e0;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

/* Images in content */
.article-content img {
    border-radius: var(--radius-md);
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
}

.article-content figure {
    margin: var(--space-8) 0;
}

.article-content figcaption {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--space-3);
    font-style: italic;
}

/* Tables */
.article-content table {
    margin: var(--space-8) 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-content th,
.article-content td {
    padding: var(--space-3) var(--space-5);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.article-content th {
    background-color: #f3f3f3;
    font-weight: var(--weight-semibold);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Horizontal Rule */
.article-content hr {
    margin: var(--space-10) 0;
    border: none;
    height: 1px;
    background-color: var(--color-border);
}

/* Share Buttons */
.article-share {
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
}

.share-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.social.social-single {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    list-style: none;
    padding: 0;
    margin: 0;
}

.social-icon {
    box-shadow: var(--ms-depth-4);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.social-icon a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background-color: var(--color-bg-alt);
    color: var(--onmsft-teal-bright);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-icon a:hover {
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
}

.social-icon a svg {
    width: 18px;
    height: 18px;
}

/* Tags */
.article-tags {
    padding: var(--space-6) 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.article-tags .tags-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-secondary);
    margin-right: var(--space-2);
}

.article-tags .tags-label svg {
    opacity: 0.6;
}

.article-tags a {
    display: inline-block;
    color: var(--onmsft-teal-bright);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    transition: color var(--transition-fast);
}

.article-tags a:hover {
    color: var(--onmsft-teal);
}

.article-tags .tag-sep {
    color: var(--color-text-light);
}

/* Post Navigation */
.post-navigation {
    margin: var(--space-10) 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.post-navigation .nav-previous,
.post-navigation .nav-next {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    border: 1px solid var(--color-border);
}

.post-navigation .nav-previous:hover,
.post-navigation .nav-next:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

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

.post-navigation .nav-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--onmsft-teal);
    margin-bottom: var(--space-2);
}

.post-navigation .nav-next .nav-label {
    justify-content: flex-end;
}

.post-navigation .nav-title {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    line-height: var(--leading-snug);
}

.post-navigation a {
    color: inherit;
    text-decoration: none;
}

.post-navigation a:hover .nav-title {
    color: var(--onmsft-teal);
}

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

.sidebar .widget {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
}

.sidebar .widget-title {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--onmsft-teal);
}

.sidebar .widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar .widget ul li {
    padding: var(--space-2) 0;
    border-bottom: 1px solid #f3f3f3;
}

.sidebar .widget ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar .widget ul li a {
    color: var(--color-text);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.sidebar .widget ul li a:hover {
    color: var(--onmsft-teal);
}

/* Sidebar Search */
.sidebar .widget_search .search-form {
    display: flex;
}

.sidebar .widget_search .search-field {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    font-size: var(--text-sm);
    outline: none;
    transition: border-color var(--transition-fast);
}

.sidebar .widget_search .search-field:focus {
    border-color: var(--onmsft-teal);
}

.sidebar .widget_search .search-submit {
    padding: var(--space-3) var(--space-4);
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
    border: 2px solid var(--onmsft-teal);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.sidebar .widget_search .search-submit:hover {
    background-color: var(--onmsft-teal-bright);
    border-color: var(--onmsft-teal-bright);
}

/* ==========================================================================
   COMMENTS
   ========================================================================== */

.comments-area {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-card);
    margin-bottom: var(--space-10);
    border: 1px solid var(--color-border);
}

.comments-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-3);
    border-bottom: 3px solid var(--onmsft-teal);
    display: inline-block;
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-10);
}

.comment-list .comment {
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--color-border);
}

.comment-list .comment:last-child {
    border-bottom: none;
}

.comment-list .children {
    list-style: none;
    padding-left: var(--space-10);
    margin: 0;
}

.comment-body {
    display: flex;
    gap: var(--space-5);
}

.comment-body .comment-avatar {
    flex-shrink: 0;
}

.comment-body .comment-avatar img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

.comment-body .comment-content-wrapper {
    flex: 1;
    min-width: 0;
}

.comment-author {
    font-weight: var(--weight-semibold);
    color: var(--color-text-dark);
    font-size: var(--text-sm);
}

.comment-metadata {
    font-size: var(--text-xs);
    color: var(--color-text-light);
    margin-bottom: var(--space-3);
}

.comment-metadata a {
    color: var(--color-text-light);
}

.comment-content {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
}

.comment-content p {
    margin-bottom: var(--space-3);
}

.comment-content p:last-child {
    margin-bottom: 0;
}

.reply a {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--onmsft-teal);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Comment Form */
.comment-respond {
    margin-top: var(--space-8);
}

.comment-reply-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-bottom: var(--space-6);
}

.comment-form label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast);
    margin-bottom: var(--space-5);
    outline: none;
}

.comment-form input:focus,
.comment-form textarea:focus {
    border-color: var(--onmsft-teal);
}

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

.comment-form .form-submit {
    margin-top: var(--space-4);
}

.comment-form .submit {
    display: inline-block;
    padding: var(--space-3) var(--space-8);
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.comment-form .submit:hover {
    background-color: var(--onmsft-teal-bright);
}

/* ==========================================================================
   POST CARDS (archives, homepage, related)
   ========================================================================== */

.post-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.post-card .card-thumbnail {
    position: relative;
    overflow: hidden;
    background-color: #e8e8e8;
}

.post-card .card-thumbnail img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.post-card:hover .card-thumbnail img {
    transform: scale(1.04);
}

.post-card .card-body {
    padding: var(--space-5) var(--space-6);
}

/* Teal category badge on cards */
.post-card .card-category {
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--onmsft-teal);
    margin-bottom: var(--space-2);
    display: inline-block;
}

.post-card .card-category a {
    color: inherit;
}

.post-card .card-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    line-height: var(--leading-snug);
    color: var(--color-text-dark);
    margin-bottom: var(--space-3);
}

.post-card .card-title a {
    color: inherit;
    text-decoration: none;
}

.post-card .card-title a:hover {
    color: var(--onmsft-teal);
}

.post-card .card-excerpt {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.post-card .card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xs);
    color: var(--color-text-light);
}

.post-card .card-meta .meta-separator {
    width: 3px;
    height: 3px;
    border-radius: var(--radius-full);
    background-color: #d2d2d2;
}

/* Featured / Hero Card */
.post-card--featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.post-card--featured .card-thumbnail img {
    aspect-ratio: auto;
    height: 100%;
}

.post-card--featured .card-body {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.post-card--featured .card-title {
    font-size: var(--text-3xl);
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-10);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.pagination a {
    color: var(--color-text);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
}

.pagination a:hover {
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
    border-color: var(--onmsft-teal);
}

.pagination .current {
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
    font-weight: var(--weight-semibold);
}

/* ==========================================================================
   ARCHIVE & SEARCH HEADERS
   ========================================================================== */

.archive-header {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-card);
    text-align: center;
    border: 1px solid var(--color-border);
}

.archive-header .archive-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-bottom: var(--space-3);
}

.archive-header .archive-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.search-header {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-card);
    text-align: center;
    border: 1px solid var(--color-border);
}

.search-header .search-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
}

.search-header .search-title span {
    color: var(--onmsft-teal);
}

/* No results */
.no-results {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-16);
    box-shadow: var(--shadow-card);
    text-align: center;
    border: 1px solid var(--color-border);
}

.no-results .page-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-dark);
    margin-bottom: var(--space-4);
}

.no-results p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn--primary {
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
}

.btn--primary:hover {
    background-color: var(--onmsft-teal-bright);
    color: var(--color-text-inverse);
}

.btn--secondary {
    background-color: transparent;
    border-color: var(--onmsft-teal);
    color: var(--onmsft-teal);
}

.btn--secondary:hover {
    background-color: var(--onmsft-teal);
    color: var(--color-text-inverse);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

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

.mt-0  { margin-top: 0; }
.mb-0  { margin-bottom: 0; }
.mt-4  { margin-top: var(--space-4); }
.mb-4  { margin-bottom: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mb-8  { margin-bottom: var(--space-8); }

.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

/* ==========================================================================
   WORDPRESS CORE
   ========================================================================== */

.alignnone { margin: var(--space-4) var(--space-8) var(--space-4) 0; }
.aligncenter { display: block; margin: var(--space-4) auto; }
.alignright { float: right; margin: var(--space-4) 0 var(--space-4) var(--space-8); }
.alignleft { float: left; margin: var(--space-4) var(--space-8) var(--space-4) 0; }

.wp-block-image figcaption {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--space-2);
}

.wp-block-gallery {
    margin: var(--space-6) 0;
}

.wp-block-embed {
    margin: var(--space-8) 0;
}

.wp-block-embed__wrapper {
    position: relative;
}

.wp-block-embed-youtube .wp-block-embed__wrapper,
.wp-block-embed-vimeo .wp-block-embed__wrapper {
    padding-bottom: 56.25%;
    height: 0;
}

.wp-block-embed-youtube .wp-block-embed__wrapper iframe,
.wp-block-embed-vimeo .wp-block-embed__wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Sticky post */
.sticky .post-card {
    border-left: 4px solid var(--onmsft-teal);
}

/* ==========================================================================
   RESPONSIVE: TABLET (max-width: 1024px)
   ========================================================================== */

@media (max-width: 1024px) {
    :root {
        --container-max: 100%;
    }

    .content-area {
        flex-direction: column;
    }

    .content-area .main-content {
        width: 100%;
    }

    .content-area .sidebar-area,
    .content-area .sidebar,
    .content-area .is-right-sidebar {
        width: 100%;
    }

    .post-card--featured {
        grid-template-columns: 1fr;
    }

    .article-title {
        font-size: var(--text-3xl);
    }

    /* Secondary nav: horizontal scrollable */
    .secondary-menu li a,
    .secondary-navigation .main-nav ul li a {
        padding-left: 16px;
        padding-right: 16px;
        font-size: 16px;
    }

    /* Footer: 2-column on tablet */
    .footer-widgets-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ==========================================================================
   RESPONSIVE: MOBILE (max-width: 768px)
   ========================================================================== */

@media (max-width: 768px) {
    .primary-nav,
    .header-search,
    .header-social {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Secondary nav: show toggle, hide horizontal menu */
    .secondary-nav-toggle {
        display: flex;
    }

    .secondary-nav-menu {
        display: none;
        overflow: visible;
    }

    .secondary-nav-menu.is-active {
        display: block;
    }

    .secondary-menu,
    .secondary-navigation .main-nav ul {
        flex-direction: column;
    }

    .secondary-menu li a,
    .secondary-navigation .main-nav ul li a {
        line-height: 48px;
        font-size: 16px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .site-content {
        padding-top: var(--space-6);
        padding-bottom: var(--space-10);
    }

    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .article-title {
        font-size: var(--text-2xl);
    }

    .article-content {
        font-size: var(--text-base);
    }

    .article-content h2 {
        font-size: var(--text-2xl);
    }

    .article-content h3 {
        font-size: var(--text-xl);
    }

    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .article-meta .meta-separator {
        display: none;
    }

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

    /* Footer: single column on mobile */
    .footer-widgets-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-nav {
        justify-content: center;
    }

    .footer-nav .footer-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

    .comment-list .children {
        padding-left: var(--space-4);
    }

    .comment-body {
        flex-direction: column;
        gap: var(--space-3);
    }
}

/* ==========================================================================
   RESPONSIVE: SMALL MOBILE (max-width: 480px)
   ========================================================================== */

@media (max-width: 480px) {
    .site-title {
        font-size: var(--text-xl);
    }

    .article-title {
        font-size: var(--text-xl);
    }

    .comments-area {
        padding: var(--space-4);
    }

    .post-card .card-body {
        padding: var(--space-4);
    }

    .archive-header {
        padding: var(--space-6);
    }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .site-header,
    .site-footer,
    .sidebar,
    .sidebar-area,
    .is-right-sidebar,
    .secondary-navigation,
    .post-navigation,
    .article-share,
    .comments-area,
    .mobile-menu-toggle,
    .header-search,
    .header-social,
    .article-tags {
        display: none !important;
    }

    body {
        background: white;
        color: black;
        font-size: 12pt;
    }

    .single-article {
        box-shadow: none;
    }

    .article-content a {
        text-decoration: underline;
    }

    .article-content a::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}