/* RadioLitic Theme Styles */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e3a5f;
    --accent-red: #ef4444;
    --accent-cyan: #22d3ee;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --container-max: 1400px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) var(--bg-primary);
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    max-width: var(--container-max);
    margin: 0 auto;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-shrink: 0;
}

/* Site Logo with SVG text */
.site-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.site-logo:hover {
    opacity: 0.9;
}

.site-logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    object-fit: cover;
}

.site-logo-text {
    height: 24px;
    width: auto;
}

/* Nav Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

/* Google Translate - next to menu */
.header-translate {
    display: flex;
    align-items: center;
}

.header-translate .gtranslate_wrapper,
.header-translate .gt_container-tdkkqv {
    display: flex !important;
    align-items: center !important;
}

.header-translate .gt_switcher-popup {
    display: flex !important;
    align-items: center !important;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary) !important;
    font-size: 0.85rem;
    text-decoration: none !important;
    white-space: nowrap;
}

.header-translate .gt_switcher-popup:hover {
    border-color: var(--accent-cyan);
}

.header-translate .gt_switcher-popup img {
    width: 20px !important;
    height: 20px !important;
}

.header-translate .gt_switcher-popup span {
    color: var(--text-primary) !important;
}

.header-translate .gt_white_content {
    background: var(--bg-secondary) !important;
    /*border: 1px solid var(--border-color) !important;*/
	border: 0 !important;
    border-radius: 8px !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4) !important;
}

.header-translate .gt_white_content a {
    color: var(--text-primary) !important;
    padding: 0.5rem 0.75rem !important;
	border-bottom-color : var(--bg-card);
}

.header-translate .gt_white_content a:hover {
    background: var(--bg-card) !important;
}

.header-translate .gt_white_content a:last-child {
	border-bottom : 0;
}

.mobile-translate {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-translate .gtranslate_wrapper,
.mobile-translate .gt_container-tdkkqv {
    display: flex !important;
}

.mobile-translate .gt_switcher-popup {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary) !important;
    text-decoration: none !important;
}

/* Header Search - Larger */
.header-search {
    position: relative;
    width: 100%;
    max-width: 450px;
    flex-shrink: 1;
}

.header-search .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    z-index: 10;
    font-size: 1rem;
}

.header-search .is-search-form,
.header-search .search-form,
.header-search form {
    display: flex;
    align-items: center;
    margin: 0 !important;
}

.header-search .is-search-input,
.header-search input[type="search"],
.header-search input[type="text"] {
    width: 100% !important;
    background: var(--bg-primary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    padding: 0.7rem 1rem 0.7rem 2.75rem !important;
    color: var(--text-primary) !important;
    font-size: 0.95rem !important;
    transition: all 0.2s !important;
    height: auto !important;
    box-shadow: none !important;
    margin: 0 !important;
}

.header-search .is-search-input:focus,
.header-search input[type="search"]:focus,
.header-search input[type="text"]:focus {
    outline: none !important;
    border-color: var(--accent-cyan) !important;
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1) !important;
}

.header-search .is-search-input::placeholder,
.header-search input::placeholder {
    color: var(--text-secondary) !important;
}

.header-search .is-search-submit,
.header-search button[type="submit"],
.header-search .is-search-icon {
    display: none !important;
}

/* Ivory Search Results */
.is-ajax-search-result {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4) !important;
    overflow: hidden !important;
    margin-top: 0.5rem !important;
}

.is-ajax-search-result .is-ajax-search-items {
    padding: 0 !important;
    background: var(--bg-secondary) !important;
}

.is-ajax-search-result .simplebar-content {
    padding: 0.5rem !important;
}

.is-ajax-search-result .is-ajax-search-post {
    background: transparent !important;
    border: none !important;
    border-radius: 8px !important;
    margin-bottom: 0.25rem !important;
    transition: background 0.2s !important;
	padding: 0;
}

.is-ajax-search-result .is-ajax-search-post:hover {
    background: var(--bg-card) !important;
}

.is-ajax-search-result .is-search-sections {
    padding: 0.75rem 1rem !important;
}

.is-ajax-search-result .is-title a {
    color: var(--text-primary) !important;
    font-weight: 600 !important;
    font-size: 0.95rem !important;
    text-decoration: none !important;
}

.is-ajax-search-result .is-title a:hover {
    color: var(--accent-cyan) !important;
}

.is-ajax-search-result .meta,
.is-ajax-search-result .meta-date {
    color: var(--text-secondary) !important;
    font-size: 0.75rem !important;
}

.is-ajax-search-result .is-ajax-result-description {
    color: var(--text-secondary) !important;
    font-size: 0.85rem !important;
    line-height: 1.5 !important;
    margin-top: 0.35rem !important;
}

/* Burger Menu */
.burger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 2000;
    transition: left 0.3s ease;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav-links {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-title,
.mobile-translate-title {
    padding: 0.5rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.mobile-nav-links a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s;
}

.mobile-nav-links a:hover {
    background: var(--bg-primary);
    color: var(--accent-cyan);
}

.mobile-nav-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-links li {
    margin: 0;
    padding: 0;
}

.mobile-categories {
    padding: 1rem 0;
}

.mobile-categories-title {
    padding: 0.5rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-category {
    border-bottom: 1px solid var(--border-color);
}

.mobile-category-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.85rem 1.25rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
}

.mobile-category-btn:hover {
    background: var(--bg-primary);
}

.mobile-category-btn > i:last-child {
    color: var(--text-secondary);
    transition: transform 0.2s;
}

.mobile-category.active .mobile-category-btn > i:last-child {
    transform: rotate(180deg);
}

.mobile-category-empty {
    cursor: default;
    opacity: 0.6;
}

.mobile-category-empty:hover {
    background: none;
}

.mobile-subcategories {
    display: none;
    background: var(--bg-primary);
    padding: 0.5rem 0;
}

.mobile-category.active .mobile-subcategories {
    display: block;
}

.mobile-subcategories a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem 0.6rem 2rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.mobile-subcategories a:hover {
    color: var(--accent-cyan);
}

.mobile-subcategories .lock-icon {
    font-size: 0.7rem;
    color: var(--accent-red);
    opacity: 0.8;
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section */
.hero {
    padding: 7rem 1.5rem 2rem;
    text-align: center;
    max-width: var(--container-max);
    margin: 0 auto;
}

.hero-tagline {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Categories */
.categories {
    padding: 1rem 1.5rem 2rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.categories-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    max-width: 1000px;
    margin: 0 auto;
}

.category-dropdown {
    position: relative;
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    padding: 0.65rem 1.25rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.category-btn:hover {
    background: var(--bg-card);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
    color: var(--text-primary);
}

.category-btn i:last-child {
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: transform 0.2s;
}

.category-dropdown:hover .category-btn i:last-child {
    transform: rotate(180deg);
}

/* Empty category */
.category-empty {
    cursor: default;
    opacity: 0.6;
}

.category-empty:hover {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    transform: none;
}

.empty-badge {
    font-size: 0.65rem;
    background: var(--border-color);
    color: var(--text-secondary);
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.subcategory-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem;
    min-width: 220px;
    max-width: 300px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    z-index: 100;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.category-dropdown:hover .subcategory-menu {
    opacity: 1;
    visibility: visible;
}

.subcategory-menu a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    transition: background 0.2s;
}

.subcategory-menu a:hover {
    background: var(--bg-card);
    color: var(--accent-cyan);
}

/* Lock icon in dropdown */
.subcategory-menu .lock-icon,
.lock-icon {
    font-size: 0.7rem;
    color: var(--accent-red);
    opacity: 0.8;
}

/* Algorithms Section */
.algorithms-section {
    padding: 2rem 1.5rem 3rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    margin: 0 0 1.5rem 0;
}

.section-title i {
    color: var(--accent-cyan);
}

.algorithms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    max-width: 1200px;
    margin: 0 auto;
}

.algorithm-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.3s;
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.algorithm-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
    box-shadow: 0 8px 30px rgba(34, 211, 238, 0.1);
}

.algorithm-card .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.algorithm-card .category-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: rgba(34, 211, 238, 0.1);
    color: var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.algorithm-card .card-lock {
    color: var(--accent-red);
    font-size: 0.85rem;
    opacity: 0.8;
}

.algorithm-card h3 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.algorithm-card .meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.algorithm-card .meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Content Wrapper */
.content-wrapper {
    padding-top: 60px;
    min-height: calc(100vh - 120px);
}

/* Algorithm Page (Single) */
.algorithm-page {
    min-height: calc(100vh - 120px);
}

/* Admin Webview Link */
.admin-webview-link {
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
}

.admin-webview-link label {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.admin-webview-link input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.35rem 0.5rem;
    color: var(--text-primary);
    font-size: 0.7rem;
    font-family: monospace;
}

.admin-webview-link .copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border: none;
    padding: 0.35rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.admin-webview-link .copy-btn:hover {
    background: var(--text-primary);
}

/* Algorithm Embed Container */
.algorithm-embed {
    width: 100%;
    min-height: calc(100vh - 120px);
}

/* Algorithm Locked State */
.algorithm-locked {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    max-width: 500px;
    margin: 3rem auto;
}

.algorithm-locked .locked-icon {
    width: 80px;
    height: 80px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.algorithm-locked .locked-icon i {
    font-size: 2.5rem;
    color: var(--accent-red);
}

.algorithm-locked h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.algorithm-locked p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.algorithm-locked .download-text {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.app-store-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.app-store-buttons a {
    display: block;
    transition: transform 0.2s, opacity 0.2s;
}

.app-store-buttons a:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.app-store-buttons svg {
    display: block;
}

/* Algorithm Error */
.algorithm-error {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* Archive Header */
.archive-header {
    margin-bottom: 2rem;
}

.archive-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.archive-description {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Page Single */
.page-single {
    max-width: 900px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
}

/* Page Content Styling */
.page-content {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.8;
}

.page-content p {
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
}

.page-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.page-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

.page-content ul,
.page-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

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

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

.page-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.page-content li::marker {
    color: var(--accent-cyan);
}

.page-content a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.page-content a:hover {
    color: var(--text-primary);
}

.page-content blockquote {
    border-left: 3px solid var(--accent-cyan);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.page-content code {
    background: var(--bg-primary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--accent-cyan);
}

.page-content pre {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.25rem;
}

.page-content pre code {
    padding: 0;
    background: none;
}

.page-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
}

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.25rem;
}

.page-content th,
.page-content td {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.page-content th {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
}

.page-content td {
    color: var(--text-secondary);
}

/* Yoast Breadcrumb Styling */
.breadcrumb-nav {
    margin-bottom: 1.5rem;
}

.breadcrumb-nav span {
    font-size: 0.85rem;
}

.breadcrumb-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb-nav a:hover {
    color: var(--accent-cyan);
}

.breadcrumb-nav .breadcrumb_last {
    color: var(--text-primary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.nav-links:not(.header-left .nav-links) {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.header-left .nav-links {
    margin-top: 0;
}

.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.page-numbers:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.page-numbers.current {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: var(--bg-primary);
}

/* 404 Page */
.error-404 {
    text-align: center;
    padding: 4rem 1rem;
}

.error-icon {
    font-size: 4rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.error-404 h1 {
    font-size: 6rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.error-404 h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.error-404 p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

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

/* Footer */
.footer {
    margin-top: 2rem;
    padding: 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
}

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


/* CUSTOM */
.is-form-style.is-form-style-3 label {
    width: 100% !important;
}

/* Subscriber Email Verification */
.subscriber-verification {
    margin-top: 2rem;
    padding-top: 1.5rem;
}

.subscriber-verification .divider {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.subscriber-verification .divider::before,
.subscriber-verification .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.subscriber-verification .divider span {
    padding: 0 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.subscriber-verification .verification-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.subscriber-verification .verification-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.subscriber-form .form-group {
    display: flex;
    gap: 0.5rem;
    max-width: 400px;
    margin: 0 auto;
}

.subscriber-form input[type="email"] {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.subscriber-form input[type="email"]:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

.subscriber-form input[type="email"]::placeholder {
    color: var(--text-secondary);
}

.subscriber-form .verify-btn {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.subscriber-form .verify-btn:hover {
    background: var(--text-primary);
}

.subscriber-form .verify-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.verification-message {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    text-align: center;
}

.verification-message.success {
    color: #10b981;
}

.verification-message.error {
    color: var(--accent-red);
}

.spin {
    display: inline-block;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Mobile Responsive */
@media (max-width: 991px) {
    .nav-links {
        display: none;
    }

    .burger-btn {
        display: block;
    }

    .categories {
        display: none;
    }

    .header-translate {
        display: none;
    }

    .site-logo-img {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-search {
        max-width: 280px;
    }

    .header-search input {
        padding: 0.6rem 0.75rem 0.6rem 2.5rem !important;
        font-size: 0.9rem !important;
    }

    .hero {
        padding: 5.5rem 1rem 1.5rem;
    }

    .algorithms-grid {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0.5rem 1rem;
    }

    .header-search {
        max-width: 200px;
    }

    .site-logo-img {
        width: 30px;
        height: 30px;
        border-radius: 8px;
    }

    .site-logo-text {
        height: 20px;
    }
}

/* Screen reader text */
.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;
}