/* ── Blog Page Styles ── */

/* ── Blog Nav ── */
.blog-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
}

.blog-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.blog-nav-left,
.blog-nav-right {
    flex: 1;
}

.blog-nav-right {
    display: flex;
    justify-content: flex-end;
}

.blog-nav-center {
    flex-shrink: 0;
}

.blog-nav-logo {
    height: 42px;
    width: auto;
    object-fit: contain;
    transform: scale(2.8, 2.6);
    transform-origin: center center;
}

.blog-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.blog-back-btn:hover {
    color: #4361ee;
    border-color: #4361ee;
    background: rgba(67, 97, 238, 0.06);
}

/* ── Blog Hero ── */
.blog-hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: var(--bg-primary);
    position: relative;
    z-index: 1;
}

.blog-hero-inner {
    max-width: 700px;
    margin: 0 auto;
}

.blog-hero-label {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.blog-hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 1.2rem;
}

.blog-hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 500;
}

/* ── Blog Main ── */
.blog-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 2rem 6rem;
    min-height: 40vh;
}

/* ── Blog Filters ── */
.blog-filter-btn {
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.blog-filter-btn:hover {
    color: var(--text-primary);
    border-color: #4361ee;
}

.blog-filter-btn.active {
    background: #4361ee;
    color: #fff;
    border-color: #4361ee;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.blog-card-project-badge {
    display: inline-block;
    background: rgba(67, 97, 238, 0.15);
    color: #4361ee;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    width: fit-content;
}

/* ── Blog Grid ── */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

@keyframes smoothCardEntrance {
    0% {
        opacity: 0;
        transform: translateY(28px) scale(0.96);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ── Blog Card ── */
.blog-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    animation: smoothCardEntrance 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
    border-color: rgba(67, 97, 238, 0.3);
}

.blog-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-surface);
    position: relative;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.06);
}

.blog-card-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.08), rgba(67, 97, 238, 0.03));
    color: #4361ee;
    font-size: 2.5rem;
    opacity: 0.4;
}

.blog-card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.blog-card-meta i {
    color: #4361ee;
    margin-right: 0.3rem;
}

.blog-card-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    line-height: 1.35;
    letter-spacing: -0.3px;
}

.blog-card-excerpt {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 1.2rem;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #4361ee;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.blog-card-link:hover {
    gap: 0.8rem;
}

/* ── Blog Empty State ── */
.blog-empty {
    text-align: center;
    padding: 6rem 2rem;
    color: var(--text-secondary);
}

.blog-empty i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.2;
    color: #4361ee;
}

.blog-empty h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
}

.blog-empty p {
    font-size: 1.05rem;
    font-weight: 500;
}

/* ── Blog Detail Modal ── */
.blog-detail-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.blog-detail-overlay.active {
    display: flex;
}

.blog-detail-modal {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.blog-detail-header-image {
    width: 100%;
    aspect-ratio: 16 / 7;
    overflow: hidden;
    border-radius: 20px 20px 0 0;
}

.blog-detail-header-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-detail-content {
    padding: 2.5rem;
}

.blog-detail-meta {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.blog-detail-meta i {
    color: #4361ee;
    margin-right: 0.3rem;
}

.blog-detail-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin-bottom: 1.5rem;
}

.blog-detail-body {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

.blog-detail-close {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    z-index: 10;
}

.blog-detail-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.blog-detail-footer {
    padding: 1.5rem 2.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.blog-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease;
}

.blog-detail-back:hover {
    color: #4361ee;
}

.blog-detail-external {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
    background: #4361ee;
    padding: 0.6rem 1.4rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background 0.3s ease;
}

.blog-detail-external:hover {
    background: #3651c4;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .blog-nav-inner {
        padding: 0.6rem 1rem;
    }

    .blog-back-btn {
        padding: 0.5rem 0.8rem;
    }

    .blog-nav-logo {
        height: 32px;
    }

    .blog-hero {
        padding: 6.5rem 1.2rem 2.5rem;
    }

    .blog-hero-title {
        font-size: 1.8rem;
    }

    .blog-hero-desc {
        font-size: 0.95rem;
    }

    .blog-main {
        padding: 1.5rem 1rem 4rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .blog-detail-content {
        padding: 1.5rem;
    }

    .blog-detail-footer {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
    }

    .blog-detail-external {
        width: 100%;
        justify-content: center;
    }

    .blog-article-view {
        padding: 5.5rem 1rem 3rem !important;
    }

    .article-cover-box {
        border-radius: 4px !important;
    }
}

/* ── 2-Column Article View Layout ── */
.blog-article-view {
    max-width: 1150px;
    margin: 0 auto;
    padding: 6.5rem 1.5rem 4rem;
}

.article-header-top {
    text-align: center;
    margin-bottom: 2.5rem;
}

.article-project-pill {
    display: inline-block;
    background: #38b6ff;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.35rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.article-main-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 0.8rem;
}

.article-author-meta {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.article-author-meta i {
    margin-right: 0.3rem;
}

.article-grid-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3.5rem;
    align-items: start;
}

@media (max-width: 992px) {
    .article-grid-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

.article-main-col {
    min-width: 0;
}

.article-cover-box {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2.2rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}

.article-cover-box img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
    display: block;
}

.article-date-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.5rem 0.8rem;
    text-align: center;
    font-weight: 800;
    line-height: 1.1;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.article-date-badge .day {
    font-size: 1.25rem;
    display: block;
}

.article-date-badge .month {
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.article-body-content {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-primary);
}

.article-body-content p {
    margin-bottom: 1.4rem;
}

/* ── GitHub Markdown Styling for Blog Articles ── */
.article-body-content h1,
.article-body-content h2,
.article-body-content h3,
.article-body-content h4 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 2.2rem 0 1.2rem;
    line-height: 1.3;
}

.article-body-content h1 { font-size: 1.8rem; }
.article-body-content h2 { font-size: 1.5rem; }
.article-body-content h3 { font-size: 1.25rem; }

.article-body-content ul,
.article-body-content ol {
    margin: 1rem 0 1.5rem 1.8rem;
    color: var(--text-primary);
}

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

.article-body-content blockquote {
    border-left: 4px solid #4361ee;
    padding: 0.8rem 1.2rem;
    margin: 1.5rem 0;
    background: var(--bg-surface);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-body-content code {
    background: var(--bg-surface);
    padding: 0.2rem 0.45rem;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.92em;
    color: #4361ee;
    border: 1px solid var(--border-color);
}

.article-body-content pre {
    background: var(--bg-surface);
    padding: 1.2rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

.article-body-content pre code {
    background: transparent;
    padding: 0;
    border: none;
    color: var(--text-primary);
}

.blog-section-heading {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2.2rem 0 1.2rem;
}

.blog-feature-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.blog-feature-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.blog-feature-item p {
    color: var(--text-secondary);
    font-size: 0.96rem;
    margin-bottom: 0 !important;
}

.blog-download-links {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.blog-download-links a {
    color: #4361ee;
    font-weight: 600;
    text-decoration: none;
}

.blog-download-links a:hover {
    text-decoration: underline;
}

/* Share & Pagination */
.article-share-bar {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.5rem 0;
    margin: 2.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.share-circle-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.share-circle-btn:hover {
    transform: translateY(-2px);
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

/* Comments Section */
.article-comments-section {
    margin-top: 3.5rem;
}

.comments-heading {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.comment-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: #4361ee;
}

.comment-submit-btn {
    align-self: flex-start;
    padding: 0.8rem 2rem;
    border-radius: 10px;
    background: #4361ee;
    color: #fff;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.comment-submit-btn:hover {
    background: #324fcb;
}

.comments-list {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comment-card {
    padding: 1.2rem;
    border-radius: 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}

.comment-card-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.comment-card-date {
    font-weight: 400;
    color: var(--text-secondary);
}

.comment-card-body {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Sidebar Widgets */
.sidebar-widget {
    margin-bottom: 2.8rem;
}

.sidebar-widget-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1.2rem;
}

.sidebar-categories-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.sidebar-category-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.96rem;
    transition: color 0.2s ease;
    cursor: pointer;
    display: block;
}

.sidebar-category-link:hover {
    color: #4361ee;
}

.sidebar-recent-posts {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.sidebar-recent-item {
    display: flex;
    gap: 1rem;
    align-items: center;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.sidebar-recent-img {
    width: 65px;
    height: 65px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--border-color);
}

.sidebar-recent-info h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 0.25rem;
    transition: color 0.2s ease;
}

.sidebar-recent-item:hover h4 {
    color: #4361ee;
}

.sidebar-recent-info span {
    font-size: 0.78rem;
    color: var(--text-secondary);
}