:root {
    --primary: #044168;
    --secondary: #0069AA;
    --accent: #00A9FF;
    --text-primary: #2C3E50;
    --border-color: #E5E9EF;
    --bg-light: #F8F9FA;
    --bg-dark: #212529;
    --text-light: #F8F9FA;
}

body.dark-mode {
    background-color: #1a1a1a;
    color: #f0f0f0;
}

.bg-primary-custom {
    background-color: var(--primary);
}

.bg-secondary-custom {
    background-color: var(--secondary);
}

.bg-accent-custom {
    background-color: var(--accent);
}

.text-primary-custom {
    color: var(--primary) !important;
}

.text-secondary-custom {
    color: var(--secondary) !important;
}

.text-accent-custom {
    color: var(--accent) !important;
}

.btn-primary-custom {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    transition: all 0.3s ease;
}

.btn-primary-custom:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: white;
}

.btn-accent-custom {
    background-color: var(--accent);
    border-color: var(--accent);
    color: white;
    transition: all 0.3s ease;
}

.btn-accent-custom:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
}

.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.article-header {
    background-color: var(--bg-light);
    padding: 120px 0 50px;
    position: relative;
}

.dark-mode .article-header {
    background-color: #2a2a2a;
}

.article-header-img {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.article-meta-item {
    display: flex;
    align-items: center;
    margin-right: 1.5rem;
    margin-bottom: 0.5rem;
    color: #6c757d;
}

.article-category {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-right: 5px;
}

.article-category-laravel {
    background-color: rgba(255, 45, 32, 0.1);
    color: #FF2D20;
}

.dark-mode .article-category-laravel {
    background-color: rgba(255, 45, 32, 0.2);
}

.article-category-php {
    background-color: rgba(119, 123, 179, 0.1);
    color: #777BB3;
}

.dark-mode .article-category-php {
    background-color: rgba(119, 123, 179, 0.2);
}

.article-content {
    font-family: 'Merriweather', serif;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #212529;
}

.dark-mode .article-content {
    color: #e0e0e0;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.article-content h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.article-content ul, .article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.article-content a:hover {
    border-bottom-color: var(--accent);
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    padding: 1rem 0 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    background-color: var(--bg-light);
    border-radius: 0 10px 10px 0;
}

.dark-mode .article-content blockquote {
    background-color: #2a2a2a;
}

.article-content pre {
    border-radius: 10px;
    margin: 2rem 0;
}

.article-content code {
    font-family: 'Fira Code', monospace;
    border-radius: 5px;
}

.article-content .code-header {
    background-color: #343a40;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.article-content .code-title {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 500;
}

.article-content .code-copy {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.article-content .code-copy:hover {
    color: var(--accent);
}

.article-content img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.article-tools {
    position: sticky;
    top: 100px;
}

.article-tool-item {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    color: var(--text-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.article-tool-item:hover {
    background-color: var(--accent);
    color: white;
    transform: translateY(-3px);
}

.dark-mode .article-tool-item {
    background-color: #2a2a2a;
    color: #f0f0f0;
}

.article-toc {
    background-color: var(--bg-light);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    position: sticky;
    top: 100px;
}

.dark-mode .article-toc {
    background-color: #2a2a2a;
}

.article-toc-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.article-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.article-toc-item {
    margin-bottom: 0.5rem;
}

.article-toc-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
    padding: 0.25rem 0;
    border-left: 2px solid transparent;
    padding-left: 0.5rem;
}

.article-toc-link:hover, .article-toc-link.active {
    color: var(--accent);
    border-left-color: var(--accent);
}

.article-toc-link.level-3 {
    padding-left: 1.5rem;
    font-size: 0.9rem;
}

.article-tags {
    margin: 2rem 0;
}

.article-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-light);
    color: var(--text-primary);
    border-radius: 20px;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.dark-mode .article-tag {
    background-color: #2a2a2a;
}

.article-tag:hover {
    background-color: var(--accent);
    color: white;
    text-decoration: none;
}

.article-share {
    margin: 2rem 0;
    display: flex;
    align-items: center;
}

.article-share-title {
    margin-right: 1rem;
    font-weight: 500;
}

.article-share-link {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: var(--bg-light);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.dark-mode .article-share-link {
    background-color: #2a2a2a;
    color: #f0f0f0;
}

.article-share-link:hover {
    background-color: var(--accent);
    color: white;
    transform: translateY(-3px);
}

.article-share-link.twitter:hover {
    background-color: #1DA1F2;
}

.article-share-link.facebook:hover {
    background-color: #4267B2;
}

.article-share-link.linkedin:hover {
    background-color: #0077B5;
}

.article-author {
    background-color: var(--bg-light);
    border-radius: 10px;
     margin: 3rem 0;
    display: flex;
    align-items: center;
}

.dark-mode .article-author {
    background-color: #2a2a2a;
}

.article-author-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 1.5rem;
    border: 3px solid white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.dark-mode .article-author-img {
    border-color: #2a2a2a;
}

.article-author-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.article-author-bio {
    margin-bottom: 1rem;
}

.article-author-social {
    display: flex;
}

.article-author-social-link {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: white;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.dark-mode .article-author-social-link {
    background-color: #2a2a2a;
    color: #f0f0f0;
}

.article-author-social-link:hover {
    background-color: var(--accent);
    color: white;
    transform: translateY(-3px);
}

.related-articles {
    margin: 3rem 0;
}

.related-articles-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.related-article {
    display: flex;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.related-article:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.related-article-img {
    width: 100px;
    height: 100px;
    border-radius: 10px;
    object-fit: cover;
    margin-right: 1rem;
}

.related-article-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.related-article-title:hover {
    color: var(--accent);
    text-decoration: none;
}

.related-article-meta {
    font-size: 0.85rem;
    color: #6c757d;
}

.audio-player {
    background-color: var(--primary);
    color: white;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.audio-player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.audio-player-title {
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

.audio-player-controls {
    display: flex;
    align-items: center;
}

.audio-player-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.audio-player-btn:hover {
    color: var(--accent);
}

.audio-player-btn-play {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.audio-player-btn-play:hover {
    background-color: var(--secondary);
    color: white;
}

.audio-player-progress {
    height: 4px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
}

.audio-player-progress-fill {
    height: 100%;
    background-color: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
}

.audio-player-progress-handle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: white;
    position: absolute;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

.audio-player-time {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.comment-form {
    margin-bottom: 2rem;
}

.comment-form-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.comment-list {
    margin-bottom: 2rem;
}

.comment {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.comment:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.comment-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.comment-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 1rem;
}

.comment-meta {
    flex-grow: 1;
}

.comment-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.comment-date {
    font-size: 0.85rem;
    color: #6c757d;
}

.comment-reply {
    margin-left: 4rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border-color);
}

.footer {
    background-color: var(--primary);
    color: white;
    padding: 4rem 0 2rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: var(--accent);
    transform: translateY(-5px);
}

.newsletter-input {
    border-radius: 50px 0 0 50px !important;
    border: none;
    padding: 0.75rem 1.5rem;
    height: 50px;
}

.newsletter-btn {
    border-radius: 0 50px 50px 0 !important;
    background-color: var(--accent);
    border: none;
    height: 50px;
    transition: all 0.3s ease;
}

.newsletter-btn:hover {
    background-color: var(--secondary);
}

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: transparent;
    z-index: 1050;
}

.reading-progress-fill {
    height: 100%;
    background-color: var(--accent);
    width: 0;
    transition: width 0.3s ease;
}

.reading-settings-modal {
    max-width: 500px;
}

.reading-settings-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.reading-settings-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.reading-settings-label {
    font-weight: 500;
}

.reading-settings-options {
    display: flex;
}

.reading-settings-option {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.reading-settings-option.active {
    border-color: var(--accent);
}

.reading-settings-option-light {
    background-color: #f8f9fa;
    color: #212529;
}

.reading-settings-option-dark {
    background-color: #212529;
    color: #f8f9fa;
}

.reading-settings-option-sepia {
    background-color: #f4ecd8;
    color: #704214;
}

.reading-settings-font-sm {
    font-size: 0.8rem;
}

.reading-settings-font-md {
    font-size: 1rem;
}

.reading-settings-font-lg {
    font-size: 1.2rem;
}

.reading-settings-line-sm {
    line-height: 1.4;
}

.reading-settings-line-md {
    line-height: 1.8;
}

.reading-settings-line-lg {
    line-height: 2.2;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-delay-1 {
    animation-delay: 0.2s;
}

.animate-delay-2 {
    animation-delay: 0.4s;
}

.animate-delay-3 {
    animation-delay: 0.6s;
}

/* Dark Mode Adjustments */
.dark-mode {
    background-color: #1a1a1a;
    color: #f0f0f0;
}

.dark-mode .navbar {
    background-color: #1a1a1a !important;
}

.dark-mode .nav-link {
    color: #f0f0f0 !important;
}

.dark-mode .navbar-toggler-icon {
    filter: invert(1);
}

.dark-mode .form-control {
    background-color: #2a2a2a;
    border-color: #444;
    color: #f0f0f0;
}

.dark-mode .form-control:focus {
    background-color: #2a2a2a;
    color: #f0f0f0;
}

.dark-mode .btn-outline-secondary {
    color: #f0f0f0;
    border-color: #444;
}

.dark-mode .btn-outline-secondary:hover {
    background-color: #444;
    color: #f0f0f0;
}

.dark-mode .card {
    background-color: #2a2a2a;
    border-color: #444;
}

.dark-mode .bg-light {
    background-color: #2a2a2a !important;
}

.dark-mode .text-muted {
    color: #adb5bd !important;
}

.dark-mode .border-bottom {
    border-color: #444 !important;
}

/* Mobile Responsive Adjustments */
@media (max-width: 991.98px) {
    .article-tools-container {
        margin-bottom: 2rem;
    }
    
    .article-tools {
        position: static;
        display: flex;
        justify-content: center;
    }
    
    .article-tool-item {
        margin: 0 0.5rem;
    }
    
    .article-toc {
        position: static;
        margin-top: 2rem;
    }
}

@media (max-width: 767.98px) {
    .navbar-collapse {
        background-color: white;
        padding: 1rem;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        margin-top: 1rem;
    }
    
    .dark-mode .navbar-collapse {
        background-color: #2a2a2a;
    }
    
    .article-header {
        padding: 100px 0 30px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-author {
        flex-direction: column;
        text-align: center;
    }
    
    .article-author-img {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .article-author-social {
        justify-content: center;
    }
}