/* ==========================================================================
   AEI General Theme — Main Stylesheet
   ==========================================================================
   Table of Contents:
   1.  Reset & Base
   2.  Typography
   3.  Container & Layout Grid
   4.  Header & Navigation
   5.  Navigation Effects
   6.  Mobile Navigation
   7.  Post Cards
   8.  Single Article
   9.  Page Header
   10. Sidebar & Widgets
   11. Footer
   12. Comments
   13. Search Form
   14. 404 Page
   15. Buttons
   16. Pagination
   17. Post Navigation
   18. Post Meta
   19. Accessibility
   20. Gutenberg Alignment
   21. No Results
   22. Responsive — Tablet
   23. Responsive — Mobile
   24. Animations
   25. Back to Top
   26. Page Transitions
   27. Dark Mode
   28. Per-Page Options
   29. Reduced Motion
   30. Print
   ========================================================================== */

/* ==========================================================================
   1. Reset & Base
   ========================================================================== */

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

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

body {
    font-family: var(--aei-font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--aei-color-dark);
    background-color: var(--aei-bg, #fff);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

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

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

a:hover,
a:focus-visible {
    color: var(--aei-color-secondary);
}

ul, ol {
    list-style: none;
}

/* ==========================================================================
   2. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--aei-font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--aei-color-dark);
    margin-bottom: 0.5em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1.25em;
}

blockquote {
    border-left: 4px solid var(--aei-color-primary);
    padding: 1em 1.5em;
    margin: 1.5em 0;
    background: rgba(var(--aei-color-primary-rgb), 0.04);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

pre, code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9em;
}

pre {
    background: var(--aei-color-dark);
    color: var(--aei-color-light);
    padding: 1.5em;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.5em;
}

code {
    background: rgba(var(--aei-color-primary-rgb), 0.08);
    padding: 0.15em 0.4em;
    border-radius: 4px;
}

pre code {
    background: none;
    padding: 0;
}

hr {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(var(--aei-color-dark-rgb), 0.15), transparent);
    margin: 2.5em 0;
}

/* ==========================================================================
   3. Container & Layout Grid
   ========================================================================== */

.aei-container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.aei-layout {
    padding-top: 0;
    padding-bottom: 3rem;
}

.aei-layout--full .aei-layout__content {
    width: 100%;
}

/* Sidebar layout — CSS Grid */
.aei-layout--sidebar {
    display: grid;
    gap: 3rem;
    grid-template-columns: 1fr 320px;
    align-items: start;
}

.aei-layout--sidebar-left {
    grid-template-columns: 320px 1fr;
}

.aei-layout--sidebar-left .aei-sidebar {
    order: -1;
}

/* Collapse to full-width when body lacks sidebar class */
body:not(.has-sidebar) .aei-layout--sidebar {
    display: block;
}

body:not(.has-sidebar) .aei-layout--sidebar .aei-layout__content {
    width: 100%;
}

/* ==========================================================================
   4. Header & Navigation
   ========================================================================== */

.aei-header {
    position: relative;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.has-sticky-header .aei-header {
    position: sticky;
    top: 0;
}

.aei-header--transparent {
    background: transparent;
}

.aei-header--transparent.is-scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.aei-header--solid {
    background: #fff;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
}

.aei-header--gradient {
    background: linear-gradient(135deg, var(--aei-color-primary), var(--aei-color-secondary));
}

/* Glassmorphism header — frosted glass look */
.aei-header--glass {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.aei-header--glass.is-scrolled {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

/* Dark header */
.aei-header--dark {
    background: var(--aei-color-dark);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.15);
}

.aei-header--dark .aei-nav__link,
.aei-header--dark .aei-site-title,
.aei-header--dark .aei-header__tagline {
    color: rgba(255, 255, 255, 0.9);
}

.aei-header--dark .aei-menu-toggle__bar {
    background: #fff;
}

.aei-header--gradient .aei-nav__link,
.aei-header--gradient .aei-site-title,
.aei-header--gradient .aei-header__tagline {
    color: #fff;
}

.aei-header__actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-self: end;
}

.aei-header__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
    transition: padding 0.3s ease;
    max-width: 1600px;
}

/* Scroll shrink — reduces header padding and logo on scroll */
.aei-header.is-scrolled .aei-header__inner {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

/* Logo */
.aei-header__brand {
    flex-shrink: 0;
    text-align: left;
    justify-self: start;
}

.aei-logo {
    display: block;
}

.aei-logo img {
    height: var(--aei-logo-height);
    max-width: var(--aei-logo-max-width);
    width: auto;
    object-fit: contain;
    transition: height 0.3s ease, transform 0.3s ease;
}

.aei-header.is-scrolled .aei-logo img {
    height: calc(var(--aei-logo-height) * 0.8);
    transform: scale(0.85);
    transform-origin: left center;
}

.aei-site-title {
    font-family: var(--aei-font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--aei-color-dark);
    letter-spacing: -0.02em;
}

.aei-header__tagline {
    font-size: 0.75rem;
    color: rgba(var(--aei-color-dark-rgb), 0.5);
    margin-top: 2px;
}

/* Desktop Nav */
.aei-nav {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.aei-nav__menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding-bottom: 4px;
}

.aei-nav__item {
    position: relative;
}

.aei-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.5rem 0.85rem;
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--aei-nav-link-color);
    border-radius: 6px;
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    white-space: nowrap;
}

.aei-nav__item--top > .aei-nav__link:hover {
    color: var(--aei-nav-hover-color);
}

.aei-nav__item--current > .aei-nav__link {
    color: var(--aei-nav-active-color);
}

.aei-nav__arrow {
    transition: transform 0.2s ease;
    opacity: 0.5;
}

.aei-nav__item--has-children:hover > .aei-nav__link .aei-nav__arrow {
    transform: rotate(180deg);
}

/* Dropdown Toggle (keyboard accessible) */
.aei-nav__toggle {
    display: none;
}

/* Sub-menu */
.aei-nav__sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.06);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    z-index: 100;
}

.aei-nav__item--has-children:hover > .aei-nav__sub-menu,
.aei-nav__item--has-children:focus-within > .aei-nav__sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.aei-nav__sub-menu .aei-nav__link {
    display: block;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border-radius: 6px;
    color: var(--aei-color-dark);
}

.aei-nav__sub-menu .aei-nav__link:hover {
    background: var(--aei-color-primary);
    color: #fff;
}

/* Nested sub-menu */
.aei-nav__sub-menu .aei-nav__sub-menu {
    top: -0.5rem;
    left: 100%;
}

/* ==========================================================================
   5. Navigation Effects
   ========================================================================== */

/* --- Sliding Underline — slides in from the left --- */
.aei-nav--underline-slide .aei-nav__item--top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.85rem;
    right: 0.85rem;
    height: 2px;
    background: var(--aei-nav-accent-color);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.aei-nav--underline-slide .aei-nav__item--top:hover::after,
.aei-nav--underline-slide .aei-nav__item--current::after {
    transform: scaleX(1);
}

/* --- Growing Underline — expands from center --- */
.aei-nav--underline-grow .aei-nav__item--top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.85rem;
    right: 0.85rem;
    height: 2px;
    background: var(--aei-nav-accent-color);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
    pointer-events: none;
}

.aei-nav--underline-grow .aei-nav__item--top:hover::after,
.aei-nav--underline-grow .aei-nav__item--current::after {
    transform: scaleX(1);
}

/* --- Sliding Overline — line slides in from the left above the text --- */
.aei-nav--overline-slide .aei-nav__item--top::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0.85rem;
    right: 0.85rem;
    height: 2px;
    background: var(--aei-nav-accent-color);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.aei-nav--overline-slide .aei-nav__item--top:hover::after,
.aei-nav--overline-slide .aei-nav__item--current::after {
    transform: scaleX(1);
}

/* --- Brackets — [ ] appear around text on hover --- */
.aei-nav--bracket .aei-nav__item--top > .aei-nav__link::before,
.aei-nav--bracket .aei-nav__item--top > .aei-nav__link::after {
    display: inline-block;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    font-weight: 300;
    color: var(--aei-nav-accent-color);
}

.aei-nav--bracket .aei-nav__item--top > .aei-nav__link::before {
    content: '[';
    transform: translateX(8px);
    margin-right: 4px;
}

.aei-nav--bracket .aei-nav__item--top > .aei-nav__link::after {
    content: ']';
    transform: translateX(-8px);
    margin-left: 4px;
}

.aei-nav--bracket .aei-nav__item--top:hover > .aei-nav__link::before,
.aei-nav--bracket .aei-nav__item--top:hover > .aei-nav__link::after,
.aei-nav--bracket .aei-nav__item--current > .aei-nav__link::before,
.aei-nav--bracket .aei-nav__item--current > .aei-nav__link::after {
    opacity: 1;
    transform: translateX(0);
}

/* --- Dot Indicator — dot appears below on hover --- */
.aei-nav--dot .aei-nav__item--top::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 5px;
    height: 5px;
    background: var(--aei-nav-accent-color);
    border-radius: 50%;
    transform: translateX(-50%) scale(0);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.aei-nav--dot .aei-nav__item--top:hover::after,
.aei-nav--dot .aei-nav__item--current::after {
    transform: translateX(-50%) scale(1);
}

/* --- Background Fill — subtle background tint --- */
.aei-nav--background-fill .aei-nav__item--top > .aei-nav__link:hover {
    background: rgba(var(--aei-nav-hover-bg-rgb), 0.08);
}

.aei-nav--background-fill .aei-nav__item--current > .aei-nav__link {
    background: rgba(var(--aei-nav-active-bg-rgb), 0.12);
}

/* --- Pill Highlight — solid rounded pill behind text --- */
.aei-nav--background-pill .aei-nav__item--top > .aei-nav__link:hover {
    background: rgba(var(--aei-nav-hover-bg-rgb), 0.1);
    border-radius: 999px;
}

.aei-nav--background-pill .aei-nav__item--current > .aei-nav__link {
    background: var(--aei-nav-active-bg);
    color: #fff;
    border-radius: 999px;
}

/* --- Border Bottom — solid persistent border on hover --- */
.aei-nav--border-bottom .aei-nav__item--top > .aei-nav__link {
    border-bottom: 2px solid transparent;
    border-radius: 0;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.aei-nav--border-bottom .aei-nav__item--top > .aei-nav__link:hover {
    border-bottom-color: var(--aei-nav-accent-color);
}

.aei-nav--border-bottom .aei-nav__item--current > .aei-nav__link {
    border-bottom-color: var(--aei-nav-accent-color);
}

/* --- Glow Effect — text shadow glow --- */
.aei-nav--glow .aei-nav__item--top > .aei-nav__link:hover {
    text-shadow: 0 0 20px rgba(var(--aei-nav-hover-bg-rgb), 0.4);
}

.aei-nav--glow .aei-nav__item--current > .aei-nav__link {
    text-shadow: 0 0 16px rgba(var(--aei-nav-active-bg-rgb), 0.3);
}

/* Gradient header nav uses white glow */
.aei-header--gradient .aei-nav--glow .aei-nav__item--top > .aei-nav__link:hover {
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

/* --- Lift & Shadow — item lifts up with shadow on hover --- */
.aei-nav--lift .aei-nav__item--top > .aei-nav__link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--aei-nav-hover-bg-rgb), 0.2);
}

.aei-nav--lift .aei-nav__item--current > .aei-nav__link {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--aei-nav-active-bg-rgb), 0.15);
}

/* ==========================================================================
   6. Mobile Navigation
   ========================================================================== */

/* Hamburger */
.aei-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.aei-menu-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--aei-color-dark);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.aei-header--gradient .aei-menu-toggle__bar {
    background: #fff;
}

.aei-menu-toggle[aria-expanded="true"] .aei-menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.aei-menu-toggle[aria-expanded="true"] .aei-menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.aei-menu-toggle[aria-expanded="true"] .aei-menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Overlay */
.aei-mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 380px;
    background: #fff;
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
}

.aei-mobile-nav.is-open {
    transform: translateX(0);
}

.aei-mobile-nav__inner {
    padding: 1.5rem;
}

.aei-mobile-nav__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(var(--aei-color-dark-rgb), 0.08);
    margin-bottom: 1.5rem;
}

.aei-mobile-nav__header .aei-logo img {
    height: 36px;
}

.aei-mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(var(--aei-color-dark-rgb), 0.05);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    color: var(--aei-color-dark);
    transition: background 0.2s ease;
}

.aei-mobile-nav__close:hover {
    background: rgba(var(--aei-color-dark-rgb), 0.1);
}

.aei-mobile-nav__menu {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.aei-mobile-nav__menu .aei-nav__item {
    position: relative;
}

.aei-mobile-nav__menu .aei-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--aei-color-dark);
    border-radius: 10px;
    transition: background 0.2s ease;
}

.aei-mobile-nav__menu .aei-nav__link:hover {
    background: rgba(var(--aei-color-primary-rgb), 0.06);
    color: var(--aei-color-primary);
}

.aei-mobile-nav__menu .aei-nav__item--current > .aei-nav__link {
    color: var(--aei-color-primary);
    background: rgba(var(--aei-color-primary-rgb), 0.08);
}

.aei-mobile-nav__menu .aei-nav__toggle {
    display: none;
}

.aei-mobile-nav__menu .aei-nav__toggle[aria-expanded="true"] {
    display: none;
}

.aei-mobile-nav__menu .aei-nav__sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0 1rem;
    display: block;
}

.aei-mobile-nav__menu .aei-nav__sub-menu .aei-nav__link {
    font-size: 0.925rem;
    font-weight: 400;
    padding: 0.5rem 1rem;
    color: rgba(var(--aei-color-dark-rgb), 0.7);
}

/* Mobile overlay backdrop */
.aei-mobile-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(4px);
}

.aei-mobile-backdrop.is-visible {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   7. Post Cards
   ========================================================================== */

.aei-posts {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(3, 1fr);
}

.aei-card {
    background: var(--aei-card-bg, #fff);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(var(--aei-color-dark-rgb), 0.06);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease, border-color 0.35s ease;
    display: flex;
    flex-direction: column;
    position: relative;
}

.aei-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 17px;
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, var(--aei-color-primary) 60%, var(--aei-color-secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
    z-index: 1;
}

.aei-card:hover::before {
    opacity: 1;
}

.aei-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(var(--aei-color-primary-rgb), 0.12);
    border-color: transparent;
}

.aei-card__figure {
    aspect-ratio: 3/2;
    overflow: hidden;
    position: relative;
}

.aei-card__figure::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--aei-color-primary-rgb), 0.1), transparent);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.aei-card:hover .aei-card__figure::after {
    opacity: 1;
}

.aei-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.aei-card:hover .aei-card__image {
    transform: scale(1.06);
}

.aei-card__body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.aei-card__category a {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--aei-color-primary);
    background: rgba(var(--aei-color-primary-rgb), 0.08);
    padding: 0.25em 0.7em;
    border-radius: 6px;
    margin-bottom: 0.6rem;
    transition: background 0.2s ease, color 0.2s ease;
}

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

.aei-card__title {
    font-size: 1.45rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.aei-card__title a {
    color: var(--aei-color-dark);
    transition: color 0.2s ease;
    background: linear-gradient(var(--aei-color-primary), var(--aei-color-primary)) no-repeat 0 100%;
    background-size: 0% 2px;
    transition: background-size 0.3s ease, color 0.2s ease;
}

.aei-card__title a:hover {
    color: var(--aei-color-primary);
    background-size: 100% 2px;
}

.aei-card__excerpt {
    font-size: 1rem;
    color: rgba(var(--aei-color-dark-rgb), 0.65);
    line-height: 1.65;
    margin-bottom: 0.75rem;
    flex: 1;
}

.aei-card__excerpt p {
    margin-bottom: 0;
}

/* Reading time badge */
.aei-card__reading-time {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    font-size: 0.78rem;
    color: rgba(var(--aei-color-dark-rgb), 0.45);
    font-weight: 500;
}

/* ==========================================================================
   8. Single Article
   ========================================================================== */

.aei-article__header {
    margin-bottom: 2rem;
}

.aei-article__title {
    margin-bottom: 0.75rem;
}

.aei-article--page .aei-article__title {
    text-align: center;
}

.aei-article__featured {
    margin-bottom: 2rem;
    border-radius: 12px;
    overflow: hidden;
}

.aei-article__image {
    width: 100%;
    border-radius: 12px;
}

.aei-article__content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.aei-article__content h2 {
    margin-top: 2.5rem;
}

.aei-article__content h3 {
    margin-top: 2rem;
}

.aei-article__content ul,
.aei-article__content ol {
    padding-left: 1.5em;
    margin-bottom: 1.25em;
}

.aei-article__content ul {
    list-style: disc;
}

.aei-article__content ol {
    list-style: decimal;
}

.aei-article__content li {
    margin-bottom: 0.35em;
}

.aei-article__content img {
    border-radius: 8px;
    margin: 1.5em 0;
}

.aei-article__content a {
    text-decoration: underline;
    text-decoration-color: rgba(var(--aei-color-primary-rgb), 0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s ease;
}

.aei-article__content a:hover {
    text-decoration-color: var(--aei-color-primary);
}

.aei-article__footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(var(--aei-color-dark-rgb), 0.08);
}

.aei-article__tags a {
    display: inline-block;
    font-size: 0.825rem;
    padding: 0.25em 0.65em;
    background: rgba(var(--aei-color-dark-rgb), 0.05);
    border-radius: 4px;
    color: rgba(var(--aei-color-dark-rgb), 0.7);
    margin: 0.15em;
    transition: background 0.2s ease, color 0.2s ease;
}

.aei-article__tags a:hover {
    background: rgba(var(--aei-color-primary-rgb), 0.1);
    color: var(--aei-color-primary);
}

.aei-article__tags-label {
    font-weight: 600;
    margin-right: 0.35em;
}

/* ==========================================================================
   9. Page Header (Archive, Search)
   ========================================================================== */

.aei-page-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(var(--aei-color-dark-rgb), 0.08);
}

.aei-page-header__title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

.aei-page-header__title span {
    color: var(--aei-color-primary);
}

.aei-page-header__desc {
    margin-top: 0.5rem;
    font-size: 1.05rem;
    color: rgba(var(--aei-color-dark-rgb), 0.65);
}

/* ==========================================================================
   10. Sidebar & Widgets
   ========================================================================== */

.aei-sidebar {
    position: sticky;
    top: calc(var(--aei-logo-height) + 4rem);
}

.aei-widget {
    background: #fff;
    border: 1px solid rgba(var(--aei-color-dark-rgb), 0.06);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.aei-widget:last-child {
    margin-bottom: 0;
}

.aei-widget__title {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--aei-color-primary);
    display: inline-block;
}

.aei-widget ul {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.aei-widget li a {
    display: block;
    padding: 0.35rem 0;
    color: rgba(var(--aei-color-dark-rgb), 0.75);
    font-size: 0.925rem;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.aei-widget li a:hover {
    color: var(--aei-color-primary);
    padding-left: 0.5rem;
}

/* ==========================================================================
   11. Footer
   ========================================================================== */

.aei-footer {
    margin-top: auto;
    position: relative;
}

/* Gradient divider at top of footer */
.aei-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--aei-color-primary), var(--aei-color-secondary), var(--aei-color-accent));
}

.aei-footer__widgets {
    background: #f5f5f5;
    color: #1a1a1a;
    padding: 3.5rem 0;
}

.aei-footer__grid {
    display: grid;
    gap: 2rem;
}

.aei-footer__grid--1 { grid-template-columns: 1fr; }
.aei-footer__grid--2 { grid-template-columns: repeat(2, 1fr); }
.aei-footer__grid--3 { grid-template-columns: repeat(3, 1fr); }
.aei-footer__grid--4 { grid-template-columns: repeat(4, 1fr); }

.aei-footer__widgets .aei-widget {
    background: transparent;
    border: none;
    padding: 0;
    margin-bottom: 0;
}

.aei-footer__widgets .aei-widget:nth-child(4) .aei-widget__title {
    margin-top: 2rem;
}

.aei-footer__widgets .aei-widget__title,
.aei-footer__widgets .aei-widget h1,
.aei-footer__widgets .aei-widget h2,
.aei-footer__widgets .aei-widget h3,
.aei-footer__widgets .aei-widget h4,
.aei-footer__widgets .aei-widget h5,
.aei-footer__widgets .aei-widget h6 {
    color: #1a1a1a;
    border-bottom-color: var(--aei-color-primary);
}

.aei-footer__widgets .aei-widget li a,
.aei-footer__widgets .aei-widget p a {
    color: #444;
}

.aei-footer__widgets .aei-widget li a:hover,
.aei-footer__widgets .aei-widget p a:hover {
    color: var(--aei-color-primary);
}

/* Keep social-links horizontal; the generic .aei-widget ul rule forces column */
.aei-footer__widgets .aei-widget ul.wp-block-social-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
    display: flex !important;
    list-style: none !important;
    padding: 0 !important;
    justify-content: center;
    max-width: 12rem;
    margin: 1.5rem auto 0 !important;
}

.aei-footer__widgets .aei-widget ul.wp-block-social-links .wp-block-social-link {
    margin: 0 !important;
    background-color: transparent !important;
}

.aei-footer__widgets .aei-widget ul.wp-block-social-links .wp-block-social-link a {
    color: #1a1a1a !important;
    transition: all 0.3s ease;
    display: flex !important;
    align-items: center;
    justify-content: center;
}

.aei-footer__widgets .aei-widget ul.wp-block-social-links .wp-block-social-link a:hover {
    opacity: 0.8;
    color: var(--aei-color-primary) !important;
    transform: translateY(-2px);
}

.aei-footer__widgets .aei-widget ul.wp-block-social-links .wp-block-social-link svg {
    width: 2.25rem !important;
    height: 2.25rem !important;
    fill: currentColor !important;
    display: block;
}

/* Copyright Bar */
.aei-footer__copyright {
    background: rgba(var(--aei-color-dark-rgb), 0.95);
    padding: 1.25rem 0;
    font-size: 0.875rem;
    color: rgba(var(--aei-color-dark-rgb), 0.45);
}

/* When there are footer widgets, use white text */
.has-footer-widgets .aei-footer__copyright {
    color: rgba(255, 255, 255, 0.4);
}

/* When no footer widgets, lighter background */
body:not(.has-footer-widgets) .aei-footer__copyright {
    background: rgba(var(--aei-color-dark-rgb), 0.04);
    color: rgba(var(--aei-color-dark-rgb), 0.5);
}

.aei-footer__copyright-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.aei-footer__copyright p {
    margin: 0;
}

.aei-footer__menu {
    display: flex;
    gap: 1.5rem;
}

.aei-footer__menu li a {
    color: inherit;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.aei-footer__menu li a:hover {
    color: var(--aei-color-primary);
}

/* ==========================================================================
   12. Comments
   ========================================================================== */

.aei-comments {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(var(--aei-color-dark-rgb), 0.08);
}

.aei-comments__title {
    margin-bottom: 1.5rem;
}

.aei-comments__list {
    list-style: none;
}

.aei-comments__list .comment {
    padding: 1.25rem;
    margin-bottom: 1rem;
    background: rgba(var(--aei-color-dark-rgb), 0.02);
    border-radius: 10px;
    border: 1px solid rgba(var(--aei-color-dark-rgb), 0.05);
}

.aei-comments__list .children {
    margin-left: 2rem;
    margin-top: 1rem;
    list-style: none;
}

.aei-comment-form {
    margin-top: 2rem;
}

.aei-comment-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.925rem;
}

.aei-comment-form input[type="text"],
.aei-comment-form input[type="email"],
.aei-comment-form input[type="url"],
.aei-comment-form textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    font-family: var(--aei-font-body);
    font-size: 0.95rem;
    border: 1px solid rgba(var(--aei-color-dark-rgb), 0.15);
    border-radius: 8px;
    margin-bottom: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: #fff;
}

.aei-comment-form input:focus,
.aei-comment-form textarea:focus {
    outline: none;
    border-color: var(--aei-color-primary);
    box-shadow: 0 0 0 3px rgba(var(--aei-color-primary-rgb), 0.12);
}

/* ==========================================================================
   13. Search Form
   ========================================================================== */

.aei-search-form__wrap {
    display: flex;
    border: 1px solid rgba(var(--aei-color-dark-rgb), 0.15);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.aei-search-form__wrap:focus-within {
    border-color: var(--aei-color-primary);
    box-shadow: 0 0 0 3px rgba(var(--aei-color-primary-rgb), 0.12);
}

.aei-search-form__input {
    flex: 1;
    padding: 0.7rem 1rem;
    border: none;
    font-size: 0.95rem;
    font-family: var(--aei-font-body);
    background: transparent;
    outline: none;
}

.aei-search-form__submit {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
    background: var(--aei-color-primary);
    border: none;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
}

.aei-search-form__submit:hover {
    background: var(--aei-color-secondary);
}

/* ==========================================================================
   14. 404 Page
   ========================================================================== */

.aei-404 {
    text-align: center;
    padding: 4rem 0;
}

.aei-404__graphic {
    margin-bottom: 1.5rem;
}

.aei-404__number {
    font-family: var(--aei-font-heading);
    font-size: clamp(5rem, 12vw, 10rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--aei-color-primary), var(--aei-color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.aei-404__title {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.aei-404__text {
    font-size: 1.1rem;
    color: rgba(var(--aei-color-dark-rgb), 0.6);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.aei-404__search {
    max-width: 400px;
    margin: 0 auto 2rem;
}

/* ==========================================================================
   15. Buttons
   ========================================================================== */

.aei-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    padding: 0.75em 1.8em;
    font-family: var(--aei-font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease, background 0.25s ease;
}

.aei-btn:hover {
    transform: translateY(-2px);
}

.aei-btn:active {
    transform: translateY(0) scale(0.98);
}

/* Shimmer sweep on hover */
.aei-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
    pointer-events: none;
}

.aei-btn:hover::after {
    left: 100%;
}

/* Primary button — gradient with glow */
.aei-btn--primary {
    background: linear-gradient(135deg, var(--aei-color-primary), var(--aei-color-secondary));
    color: #fff;
    box-shadow: 0 2px 8px rgba(var(--aei-color-primary-rgb), 0.2);
}

.aei-btn--primary:hover {
    box-shadow: 0 8px 25px rgba(var(--aei-color-primary-rgb), 0.4);
    color: #fff;
}

/* Secondary button — outline with fill on hover */
.aei-btn--secondary {
    background: transparent;
    color: var(--aei-color-primary);
    border: 2px solid var(--aei-color-primary);
}

.aei-btn--secondary:hover {
    background: var(--aei-color-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(var(--aei-color-primary-rgb), 0.25);
}

/* Ghost button — minimal */
.aei-btn--ghost {
    background: rgba(var(--aei-color-dark-rgb), 0.04);
    color: var(--aei-color-dark);
    border: none;
}

.aei-btn--ghost:hover {
    background: rgba(var(--aei-color-dark-rgb), 0.1);
}

/* Small & Large variants */
.aei-btn--sm {
    padding: 0.5em 1.2em;
    font-size: 0.85rem;
    border-radius: 8px;
}

.aei-btn--lg {
    padding: 1em 2.4em;
    font-size: 1.1rem;
    border-radius: 12px;
}

/* ==========================================================================
   16. Pagination
   ========================================================================== */

.aei-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.aei-pagination a,
.aei-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.6em;
    font-size: 0.925rem;
    font-weight: 500;
    border-radius: 8px;
    transition: background 0.2s ease, color 0.2s ease;
}

.aei-pagination a {
    color: var(--aei-color-dark);
    background: rgba(var(--aei-color-dark-rgb), 0.04);
}

.aei-pagination a:hover {
    background: rgba(var(--aei-color-primary-rgb), 0.1);
    color: var(--aei-color-primary);
}

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

/* ==========================================================================
   17. Post Navigation (Prev/Next)
   ========================================================================== */

.post-navigation {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(var(--aei-color-dark-rgb), 0.08);
}

.post-navigation .nav-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.post-navigation .nav-previous,
.post-navigation .nav-next {
    padding: 1rem;
    border-radius: 10px;
    background: rgba(var(--aei-color-dark-rgb), 0.02);
    transition: background 0.2s ease;
}

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

.post-navigation .nav-previous:hover,
.post-navigation .nav-next:hover {
    background: rgba(var(--aei-color-primary-rgb), 0.05);
}

.aei-post-nav__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(var(--aei-color-dark-rgb), 0.45);
    margin-bottom: 0.25rem;
}

.aei-post-nav__title {
    display: block;
    font-weight: 600;
    color: var(--aei-color-dark);
}

/* ==========================================================================
   18. Post Meta
   ========================================================================== */

.aei-post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: rgba(var(--aei-color-dark-rgb), 0.55);
}

.aei-meta__item {
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
}

.aei-meta__item a {
    color: inherit;
}

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

/* ==========================================================================
   19. Accessibility
   ========================================================================== */

.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: #fff;
    border-radius: 3px;
    box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
    clip: auto !important;
    color: var(--aei-color-dark);
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

.aei-skip-link:focus {
    z-index: 100001;
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--aei-color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   20. Gutenberg Alignment
   ========================================================================== */

.aei-article__content .alignwide {
    margin-left: -2rem;
    margin-right: -2rem;
    max-width: calc(100% + 4rem);
}

.aei-article__content .alignfull {
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    max-width: 100vw;
    width: 100vw;
}

.aei-article__content .aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.aei-article__content .alignleft {
    float: left;
    margin-right: 1.5rem;
    margin-bottom: 1rem;
}

.aei-article__content .alignright {
    float: right;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

/* WP Block styles */
.wp-block-image figcaption {
    font-size: 0.85rem;
    color: rgba(var(--aei-color-dark-rgb), 0.5);
    text-align: center;
    margin-top: 0.5rem;
}

/* ==========================================================================
   21. No Results
   ========================================================================== */

.aei-no-results {
    text-align: center;
    padding: 3rem 0;
}

.aei-no-results__title {
    margin-bottom: 1rem;
}

.aei-no-results__content {
    max-width: 500px;
    margin: 0 auto;
}

.aei-no-results__content p {
    color: rgba(var(--aei-color-dark-rgb), 0.6);
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   22. Responsive — Tablet (max-width: 1024px)
   ========================================================================== */

@media (max-width: 1024px) {
    .aei-layout--sidebar {
        grid-template-columns: 1fr;
    }

    .aei-layout--sidebar-left .aei-sidebar {
        order: 0;
    }

    .aei-sidebar {
        position: static;
    }

    .aei-nav {
        display: none;
    }

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

    /* Switch header from 3-col grid to flex on mobile so hamburger sits full right */
    .aei-header__inner {
        display: flex;
        justify-content: space-between;
    }

    .aei-footer__grid--3,
    .aei-footer__grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .aei-posts {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* ==========================================================================
   23. Responsive — Mobile (max-width: 640px)
   ========================================================================== */

@media (max-width: 640px) {
    .aei-posts {
        grid-template-columns: 1fr;
    }

    .aei-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .aei-layout {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }

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

    .aei-card__figure {
        aspect-ratio: 16/9;
    }

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

    .aei-footer__copyright-inner {
        flex-direction: column;
        text-align: center;
    }

    .aei-footer__menu {
        justify-content: center;
    }

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

    .aei-comments__list .children {
        margin-left: 1rem;
    }

    .aei-article__content .alignwide {
        margin-left: -1rem;
        margin-right: -1rem;
        max-width: calc(100% + 2rem);
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Give full-width GROUP blocks inner padding so content doesn't touch screen edges */
    .aei-article__content .alignfull.wp-block-group {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Match block page padding to .aei-container on mobile — catch all non-full-width direct children */
    .aei-article--blocks > *:not(.alignfull) {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* alignfull blocks must bleed edge-to-edge, no padding */
    .aei-article--blocks > .alignfull {
        padding-left: 0;
        padding-right: 0;
    }

    /* alignwide gets constrained padding */
    .aei-article--blocks .alignwide {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* ==========================================================================
   24. Animations
   ========================================================================== */

@keyframes aei-fade-in-up {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes aei-fade-in-down {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes aei-fade-in-left {
    from { opacity: 0; transform: translateX(-30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes aei-fade-in-right {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes aei-scale-in {
    from { opacity: 0; transform: scale(0.9); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes aei-blur-in {
    from { opacity: 0; filter: blur(8px); }
    to   { opacity: 1; filter: blur(0); }
}

/* Scroll-triggered animation classes — applied by JS IntersectionObserver */
.aei-animate {
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.6s ease;
}

.aei-animate--fade-up       { transform: translateY(30px); }
.aei-animate--fade-down     { transform: translateY(-20px); }
.aei-animate--fade-left     { transform: translateX(-30px); }
.aei-animate--fade-right    { transform: translateX(30px); }
.aei-animate--scale         { transform: scale(0.92); }
.aei-animate--blur          { filter: blur(8px); }

.aei-animate.is-visible {
    opacity: 1;
    transform: translate(0) scale(1);
    filter: blur(0);
}

/* Stagger delays for children */
.aei-stagger > .aei-animate:nth-child(1) { transition-delay: 0s; }
.aei-stagger > .aei-animate:nth-child(2) { transition-delay: 0.1s; }
.aei-stagger > .aei-animate:nth-child(3) { transition-delay: 0.2s; }
.aei-stagger > .aei-animate:nth-child(4) { transition-delay: 0.3s; }
.aei-stagger > .aei-animate:nth-child(5) { transition-delay: 0.4s; }
.aei-stagger > .aei-animate:nth-child(6) { transition-delay: 0.5s; }
.aei-stagger > .aei-animate:nth-child(7) { transition-delay: 0.6s; }
.aei-stagger > .aei-animate:nth-child(8) { transition-delay: 0.7s; }

/* ==========================================================================
   25. Back to Top
   ========================================================================== */

.aei-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--aei-color-primary);
    color: #fff;
    cursor: pointer;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(var(--aei-color-primary-rgb), 0.3);
}

.aei-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.aei-back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(var(--aei-color-primary-rgb), 0.45);
}

.aei-back-to-top:active {
    transform: translateY(0) scale(0.95);
}

/* SVG progress ring around the button */
.aei-back-to-top__progress {
    position: absolute;
    inset: -3px;
    width: calc(100% + 6px);
    height: calc(100% + 6px);
    transform: rotate(-90deg);
    pointer-events: none;
}

.aei-back-to-top__progress circle {
    fill: none;
    stroke: var(--aei-color-primary);
    stroke-width: 2;
    stroke-linecap: round;
    opacity: 0.4;
}

.aei-back-to-top__progress .aei-progress-bar {
    opacity: 1;
    transition: stroke-dashoffset 0.1s linear;
}

.aei-back-to-top__icon {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   26. Page Transitions
   ========================================================================== */

/* Loading bar at top of page */
.aei-loading-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--aei-color-primary), var(--aei-color-secondary), var(--aei-color-accent));
    background-size: 200% 100%;
    animation: aei-loading-gradient 1.5s ease infinite;
    z-index: 99999;
    transition: width 0.3s ease, opacity 0.3s ease;
    border-radius: 0 2px 2px 0;
}

@keyframes aei-loading-gradient {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Page content fade-in on load */
.aei-page-transition {
    animation: aei-fade-in-up 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* ==========================================================================
   27. Dark Mode
   ========================================================================== */

/* Dark mode toggle button */
.aei-dark-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: rgba(var(--aei-color-dark-rgb), 0.06);
    color: var(--aei-color-dark);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.aei-dark-toggle:hover {
    background: rgba(var(--aei-color-dark-rgb), 0.12);
    transform: rotate(15deg);
}

.aei-dark-toggle svg {
    width: 18px;
    height: 18px;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Dark mode overrides */
body.aei-dark {
    --aei-bg: #0f172a;
    --aei-card-bg: #1e293b;
    color: rgba(255, 255, 255, 0.87);
}

body.aei-dark h1,
body.aei-dark h2,
body.aei-dark h3,
body.aei-dark h4,
body.aei-dark h5,
body.aei-dark h6 {
    color: rgba(255, 255, 255, 0.95);
}

body.aei-dark a {
    color: var(--aei-color-accent);
}

body.aei-dark .aei-header--transparent.is-scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}

body.aei-dark .aei-header--solid {
    background: #1e293b;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
}

body.aei-dark .aei-header--glass {
    background: rgba(15, 23, 42, 0.6);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

body.aei-dark .aei-header--glass.is-scrolled {
    background: rgba(15, 23, 42, 0.85);
}

body.aei-dark .aei-nav__link {
    color: rgba(255, 255, 255, 0.8);
}

body.aei-dark .aei-menu-toggle__bar {
    background: rgba(255, 255, 255, 0.85);
}

body.aei-dark .aei-card {
    border-color: rgba(255, 255, 255, 0.06);
}

body.aei-dark .aei-card__title a {
    color: rgba(255, 255, 255, 0.92);
}

body.aei-dark .aei-card__excerpt {
    color: rgba(255, 255, 255, 0.5);
}

body.aei-dark .aei-widget {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.06);
}

body.aei-dark .aei-widget li a {
    color: rgba(255, 255, 255, 0.6);
}

body.aei-dark .aei-comment-form input[type="text"],
body.aei-dark .aei-comment-form input[type="email"],
body.aei-dark .aei-comment-form input[type="url"],
body.aei-dark .aei-comment-form textarea {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.87);
}

body.aei-dark .aei-search-form__wrap {
    border-color: rgba(255, 255, 255, 0.12);
}

body.aei-dark .aei-search-form__input {
    color: rgba(255, 255, 255, 0.87);
}

body.aei-dark .aei-mobile-nav {
    background: #1e293b;
}

body.aei-dark .aei-mobile-nav__menu .aei-nav__link {
    color: rgba(255, 255, 255, 0.8);
}

body.aei-dark .aei-mobile-nav__close {
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.08);
}

body.aei-dark .aei-mobile-nav__header {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

body.aei-dark .aei-dark-toggle {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.87);
}

body.aei-dark .aei-article__content a {
    color: var(--aei-color-accent);
}

body.aei-dark .aei-article__tags a {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
}

body.aei-dark .aei-post-nav__title {
    color: rgba(255, 255, 255, 0.87);
}

body.aei-dark .post-navigation .nav-previous,
body.aei-dark .post-navigation .nav-next {
    background: rgba(255, 255, 255, 0.04);
}

body.aei-dark .aei-footer__copyright {
    background: rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.35);
}

body.aei-dark .aei-pagination a {
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.06);
}

body.aei-dark blockquote {
    background: rgba(var(--aei-color-primary-rgb), 0.06);
}

body.aei-dark pre {
    background: #0f172a;
}

body.aei-dark hr {
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

body.aei-dark .aei-comments__list .comment {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.06);
}

/* ==========================================================================
   28. Per-Page Options (body class driven)
   ========================================================================== */

/* Hide title via body class (CSS fallback for edge cases) */
.aei-hide-title .aei-article__header {
    display: none;
}

/* Hide featured image */
.aei-hide-featured-image .aei-article__featured {
    display: none;
}

/* Hide comments */
.aei-hide-comments .aei-comments,
.aei-hide-comments #respond {
    display: none;
}

/* Force full width — remove sidebar layout */
.aei-force-full-width .aei-layout--sidebar {
    grid-template-columns: 1fr;
}
.aei-force-full-width .aei-layout__sidebar {
    display: none;
}

/* Content padding overrides */
.aei-padding-none .aei-layout__content {
    padding-top: 0;
    padding-bottom: 0;
}
.aei-padding-none .aei-article--page,
.aei-padding-none .aei-article--single {
    padding: 0;
}

.aei-padding-small .aei-layout__content {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.aei-padding-large .aei-layout__content {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

/* ==========================================================================
   29. Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
        transition-duration: 0.01ms;
        scroll-behavior: auto;
    }
}

/* ==========================================================================
   Full-Width Block Pages (force_full = true)
   ========================================================================== */

/* Article rendered without container — blocks handle their own layout */
.aei-article--blocks {
    width: 100%;
}

/* alignfull blocks go true edge-to-edge */
.aei-article--blocks .wp-block-cover.alignfull,
.aei-article--blocks .wp-block-group.alignfull {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
}

/* alignwide blocks respect content max-width */
.aei-article--blocks .alignwide {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Default constrained content padding */
.aei-article--blocks > .wp-block-group:not(.alignfull):not(.alignwide),
.aei-article--blocks > .wp-block-columns,
.aei-article--blocks > .wp-block-paragraph,
.aei-article--blocks > .wp-block-heading,
.aei-article--blocks > .wp-block-image:not(.alignfull),
.aei-article--blocks > .wp-block-buttons,
.aei-article--blocks > .wp-block-separator,
.aei-article--blocks > .wp-block-list {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Interior Design Page hero cover */
.id-hero-cover .wp-block-cover__image-background {
    object-position: center center;
}

/* ==========================================================================
   Brands Page
   ========================================================================== */

/* ── Featured brands cards ── */
.page-slug-brands .wp-block-columns {
    gap: 1rem !important;
    margin-bottom: 1rem !important;
    align-items: stretch;
}

/* Stretch every column so cards are equal height */
.page-slug-brands .wp-block-column {
    display: flex;
    flex-direction: column;
}

/* The inner group becomes the visual card (only inside columns, not the CTA wrapper) */
.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color,
.page-slug-brands .wp-block-column .wp-block-group.has-border-color {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 0 !important;           /* remove inline padding — link handles it */
    border-radius: 6px;
    border: 1px solid #e8e4df;
    background: #f9f7f5;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color:hover,
.page-slug-brands .wp-block-column .wp-block-group.has-border-color:hover {
    background: #fff;
    border-color: #c8c0b8;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

/* The paragraph inside the card */
.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color p,
.page-slug-brands .wp-block-column .wp-block-group.has-border-color p {
    margin: 0 !important;
    flex: 1;
    display: flex;
}

/* Make the anchor fill the entire card */
.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color a,
.page-slug-brands .wp-block-column .wp-block-group.has-border-color a {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--aei-color-dark, #1a1a1a);
    text-decoration: none;
    transition: color 0.2s ease;
    min-height: 52px;
}

.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color a:hover,
.page-slug-brands .wp-block-column .wp-block-group.has-border-color a:hover {
    color: var(--aei-color-primary, #5a8a6a);
}

/* Featured section — slightly larger text + left accent bar on hover */
.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color:not(.has-border-color) a {
    font-size: 1rem;
    font-weight: 600;
    min-height: 58px;
    padding-left: 1.25rem;
    border-left: 3px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.page-slug-brands .wp-block-column .wp-block-group.has-light-background-color:not(.has-border-color):hover a {
    border-left-color: var(--aei-color-primary, #5a8a6a);
}

/* ── Additional brands — override to 4-col CSS grid ── */
.page-slug-brands .wp-block-columns:has(.wp-block-group.has-border-color) {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    flex-wrap: unset;
}

.page-slug-brands .wp-block-columns:has(.wp-block-group.has-border-color) .wp-block-column {
    flex-basis: unset !important;
    width: auto !important;
    max-width: none !important;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    /* Featured: 2 cols */
    .page-slug-brands .wp-block-columns:not(:has(.wp-block-group.has-border-color)) {
        flex-wrap: wrap !important;
    }

    .page-slug-brands .wp-block-columns:not(:has(.wp-block-group.has-border-color)) .wp-block-column {
        flex-basis: calc(50% - 0.5rem) !important;
        min-width: calc(50% - 0.5rem) !important;
    }

    /* Additional: 3 cols */
    .page-slug-brands .wp-block-columns:has(.wp-block-group.has-border-color) {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (max-width: 600px) {
    /* Featured: 1 col */
    .page-slug-brands .wp-block-columns:not(:has(.wp-block-group.has-border-color)) .wp-block-column {
        flex-basis: 100% !important;
        min-width: 100% !important;
    }

    /* Additional: 2 cols */
    .page-slug-brands .wp-block-columns:has(.wp-block-group.has-border-color) {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ── Brands page CTA buttons ── */
.page-slug-brands .wp-block-button .has-contrast-background-color {
    background: var(--alt-secondary, #4f91cb) !important;
    color: #fff !important;
    border-color: var(--alt-secondary, #4f91cb) !important;
}

.page-slug-brands .wp-block-button .has-contrast-background-color:hover {
    background: #3a78b5 !important;
    border-color: #3a78b5 !important;
    color: #fff !important;
}

.page-slug-brands .wp-block-button.is-style-outline .wp-block-button__link {
    color: var(--alt-secondary, #4f91cb) !important;
    border-color: var(--alt-secondary, #4f91cb) !important;
    background: transparent !important;
}

.page-slug-brands .wp-block-button.is-style-outline .wp-block-button__link:hover {
    background: var(--alt-secondary, #4f91cb) !important;
    color: #fff !important;
}

/* ==========================================================================
   30. Print
   ========================================================================== */

@media print {
    .aei-header,
    .aei-footer,
    .aei-sidebar,
    .aei-menu-toggle,
    .aei-mobile-nav,
    .aei-mobile-backdrop,
    .aei-pagination,
    .post-navigation,
    .aei-comments,
    .aei-search-form,
    .aei-back-to-top,
    .aei-dark-toggle,
    .aei-loading-bar,
    .aei-btn {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }

    .aei-container {
        max-width: 100%;
        padding: 0;
    }

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

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