/* Posts Section - Futuristic 2030 Card Design with Glassmorphism */

/* Posts Grid - Normal View */
.posts-grid {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: var(--spacing-xl);
    padding: 0 32px;
    margin: 0;
    position: relative;
    width: 100%;
    transition: opacity 0.8s ease-out;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
}

/* Empty State */
.posts-grid:empty::after {
    content: 'No posts available';
    display: block;
    text-align: center;
    color: var(--text-dark);
    font-size: 18px;
    padding: var(--spacing-2xl);
}

/* Post Card - Grid View */
.post-card {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: fadeInScale 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(15px) scale(0.97);
    flex: 0 0 calc(33.333% - 1.33rem); /* 3 posts per view on large screens */
}

.post-card:nth-child(1) { animation-delay: 0.1s; }
.post-card:nth-child(2) { animation-delay: 0.15s; }
.post-card:nth-child(3) { animation-delay: 0.2s; }
.post-card:nth-child(4) { animation-delay: 0.25s; }
.post-card:nth-child(5) { animation-delay: 0.3s; }
.post-card:nth-child(6) { animation-delay: 0.35s; }

@keyframes fadeInScale {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(102, 126, 234, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.post-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4), 0 0 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.4);
}

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

/* Post Image - Grid View */
.post-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(102, 126, 234, 0.2) 100%);
}

.post-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
}

.post-image-placeholder .icon-large {
    width: 80px;
    height: 80px;
    fill: rgba(255, 255, 255, 0.3);
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.post-card:hover .post-image img {
    transform: scale(1.1);
}

/* Post Content - Grid View */
.post-content {
    padding: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.post-type {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(102, 126, 234, 0.3) 100%);
    border: 1px solid rgba(102, 126, 234, 0.5);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--accent-tertiary);
}

.post-date {
    font-size: 13px;
    color: var(--text-dark);
    font-weight: 500;
}

.post-title {
    margin: 0 0 var(--spacing-md);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.post-title a {
    color: var(--text-light);
    text-decoration: none;
    background: linear-gradient(135deg, var(--text-light) 0%, var(--text-medium) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.post-card:hover .post-title a {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-tertiary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.post-excerpt {
    color: var(--text-medium);
    font-size: 15px;
    line-height: 1.6;
    margin: 0 0 var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm) 0;
}

.post-read-more .icon-arrow-right {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
    stroke: var(--accent-primary);
    stroke-width: 2;
}

.post-card:hover .post-read-more .icon-arrow-right {
    transform: translateX(4px);
}

.post-read-more:hover {
    color: var(--accent-tertiary);
}

/* Full-Screen Post Overlay */
.post-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    background-attachment: fixed;
    display: none;
    flex-direction: column;
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.4s ease;
    overflow: hidden;
    box-sizing: border-box;
}

.post-overlay::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.post-overlay.active {
    display: flex;
    opacity: 1;
    animation: overlayZoomIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.post-overlay.active .post-overlay-header-nav {
    animation: headerSlideDown 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.post-overlay.active .post-overlay-content {
    animation: contentZoomIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

@keyframes overlayZoomIn {
    from { opacity: 0; transform: scale(0.92); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes headerSlideDown {
    from { opacity: 0; transform: translateY(-30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes contentZoomIn {
    from { opacity: 0; transform: translateY(40px) scale(0.94); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.post-overlay.active .post-card {
    border-radius: 0;
}

/* Overlay Header Navigation */
.post-overlay-header-nav {
    height: 100px;
    background: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100vw;
    z-index: 10;
    flex-shrink: 0;
    box-sizing: border-box;
    transition: opacity 0.3s ease;
}

.post-overlay-header-nav.updating {
    opacity: 0.7;
}

.post-nav-left,
.post-nav-center,
.post-nav-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-width: 0;
    overflow: visible;
}

.post-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.9);
    font-size: 32px;
    font-weight: 100;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    min-width: auto;
    overflow: visible;
}

.post-nav-btn span {
    font-size: 36px;
}

.post-nav-btn:hover {
    color: white;
}

.post-nav-btn:active {
    opacity: 0.7;
}

.post-nav-btn .icon,
.post-nav-btn .icon-large {
    width: 28px;
    height: 28px;
    fill: currentColor;
    flex-shrink: 0;
}

/* Overlay Content */
.post-overlay-content {
    flex: 1;
    overflow-y: auto;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    padding-top: 100px;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}

/* Navigation Animations */
.post-overlay-content.slide-out-next { animation: slideOutLeft 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards; }
.post-overlay-content.slide-out-back { animation: slideOutRight 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards; }
.post-overlay-content.slide-out-related { animation: fadeOutScale 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards; }

.post-overlay-content.slide-in-next { animation: slideInRight 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.post-overlay-content.slide-in-back { animation: slideInLeft 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.post-overlay-content.slide-in-related { animation: fadeInScale 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards; }

@keyframes slideOutLeft  { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(-100px); } }
@keyframes slideOutRight { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(100px); } }
@keyframes slideInRight  { from { opacity: 0; transform: translateX(80px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideInLeft   { from { opacity: 0; transform: translateX(-80px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeOutScale  { from { opacity: 1; transform: scale(1); } to { opacity: 0; transform: scale(0.95); } }
@keyframes fadeInScale   { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

/* Body scroll lock */
body.overlay-open,
html.overlay-open {
    overflow: hidden !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Overlay Sections */
.post-overlay-header {
    padding: var(--spacing-2xl) var(--spacing-xl);
    animation: slideInFromLeft 1s ease-out;
}

@keyframes slideInFromLeft {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(0); }
}

.post-overlay-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.post-overlay-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 900;
    color: var(--text-light);
    line-height: 1.2;
    letter-spacing: -1px;
    margin: 0;
}

.post-overlay-featured-wrapper {
    padding: var(--spacing-2xl) var(--spacing-xl) 0;
    animation: emergeFromBottom 0.8s ease-out 0.3s both;
}

.post-overlay-featured {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: cover;
}

@keyframes emergeFromBottom {
    0% { opacity: 0; transform: translateY(60px); }
    100% { opacity: 1; transform: translateY(0); }
}

.post-overlay-body {
    padding: var(--spacing-2xl) var(--spacing-xl);
    color: var(--text-medium);
    font-size: clamp(17px, 2.2vw, 20px);
    line-height: 1.6;
}

.post-overlay-body p {
    margin-bottom: var(--spacing-lg);
}

.post-overlay-body ul,
.post-overlay-body ol {
    margin: var(--spacing-md) 0;
    margin-left: 3rem;
    padding-left: 0;
}

.post-overlay-body ul {
    list-style: circle;
}

.post-overlay-body ul li {
    margin: var(--spacing-xs) 0;
    line-height: 1.5;
}

.post-overlay-body ol {
    counter-reset: list-counter;
    list-style: none;
}

.post-overlay-body ol li {
    position: relative;
    margin: var(--spacing-xs) 0;
    line-height: 1.5;
    padding-left: 2rem;
    counter-increment: list-counter;
}

.post-overlay-body ol li::before {
    content: counter(list-counter) '.';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

.post-overlay-body ul li {
    color: inherit; /* keeps text unchanged */
}

.post-overlay-body ul li::marker {
    color: var(--accent-primary); /* or var(--primary) */
}

.post-overlay-actions {
    padding: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: emergeFromBottom 0.8s ease-out 0.9s both;
}

.post-overlay-actions .btn {
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

/* Related Articles */
.related-articles {
    padding: var(--spacing-2xl) var(--spacing-xl);
    animation: emergeFromBottom 0.8s ease-out 0.7s both;
}

.related-articles-title {
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 800;
    color: var(--text-light);
    margin: 0 0 var(--spacing-xl);
    letter-spacing: -0.5px;
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.related-article-card {
    background: var(--glass-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.related-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.3);
}

.related-article-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(102, 126, 234, 0.2) 100%);
}

.related-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.related-article-card:hover .related-article-image img {
    transform: scale(1.1);
}

.related-article-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
}

.related-article-placeholder .icon-large {
    width: 60px;
    height: 60px;
    fill: rgba(255, 255, 255, 0.3);
}

.related-article-content {
    padding: var(--spacing-lg);
}

.related-article-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-light);
    margin: 0 0 var(--spacing-sm);
    line-height: 1.3;
}

.related-article-excerpt {
    font-size: 14px;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.5;
}

/* Posts Navigation Arrows */
.posts-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 64px;
    height: 64px;
    display: flex !important;
    visibility: visible !important;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(135deg,
            rgba(255, 255, 255, 0.15) 0%,
            rgba(255, 255, 255, 0.05) 50%,
            rgba(102, 126, 234, 0.08) 100%);
    backdrop-filter: blur(24px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow:
        0 16px 64px rgba(0, 0, 0, 0.4),
        0 0 80px rgba(102, 126, 234, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.25),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    opacity: 0.4;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    cursor: pointer;
    z-index: 1000;
    border-radius: 50%;
    animation: navGlow 4s ease-in-out infinite alternate;
}

.posts-navigation-left:hover {
    opacity: 0.9;
    transform: translateX(-50%) translateY(-50%) scale(1.08);
}

.posts-navigation-right:hover {
    opacity: 0.9;
    transform: translateX(50%) translateY(-50%) scale(1.08);
}
    background:
        linear-gradient(135deg,
            rgba(255, 255, 255, 0.25) 0%,
            rgba(255, 255, 255, 0.1) 50%,
            rgba(102, 126, 234, 0.15) 100%);
    box-shadow:
        0 24px 96px rgba(0, 0, 0, 0.5),
        0 0 120px rgba(102, 126, 234, 0.25),
        0 0 200px rgba(102, 126, 234, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.35),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15);
}

@keyframes navGlow {
    0% {
        box-shadow:
            0 16px 64px rgba(0, 0, 0, 0.4),
            0 0 80px rgba(102, 126, 234, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.25),
            inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    }
    100% {
        box-shadow:
            0 16px 64px rgba(0, 0, 0, 0.4),
            0 0 90px rgba(102, 126, 234, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.3),
            inset 0 -1px 0 rgba(0, 0, 0, 0.12);
    }
}

.posts-navigation-left {
    left: 32px;
    transform: translateX(-50%) translateY(-50%);
}

.posts-navigation-right {
    right: 32px;
    transform: translateX(50%) translateY(-50%);
}

.posts-navigation svg {
    width: 20px;
    height: 20px;
    fill: rgba(102, 126, 234, 0.95);
    stroke: rgba(102, 126, 234, 0.95);
    stroke-width: 2px;
    filter: drop-shadow(0 0 6px rgba(102, 126, 234, 0.6));
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.posts-navigation:hover svg {
    fill: rgba(102, 126, 234, 1);
    stroke: rgba(102, 126, 234, 1);
    filter: drop-shadow(0 0 16px rgba(102, 126, 234, 0.9));
    transform: scale(1.05);
}

/* Posts Container Wrapper */
.posts-container {
    position: relative;
    padding: 0;
    margin: 0;
}

.posts-container:hover .posts-navigation {
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .posts-grid {
        gap: var(--spacing-lg);
    }

    .post-card {
        flex: 0 0 calc(50% - 0.75rem); /* 2 posts per view on medium screens */
    }
}

@media (max-width: 768px) {
    .posts-grid {
        gap: var(--spacing-lg);
        padding: 0;
    }

    .post-card {
        flex: 0 0 100%; /* 1 post per view on small screens */
    }

    /* Navigation always visible on mobile too */
    .posts-navigation {
        width: 50px;
        height: 50px;
    }

    .posts-navigation svg {
        width: 18px;
        height: 18px;
    }

    .post-image {
        height: 200px;
    }

    .post-content {
        padding: var(--spacing-lg);
    }

    .post-title {
        font-size: 20px;
    }

    .post-overlay-header-nav {
        height: 80px;
        padding: 0 var(--spacing-sm);
    }

    .post-overlay-content {
        padding-top: 80px;
    }

    .post-nav-left,
    .post-nav-center,
    .post-nav-right {
        min-width: 0;
        flex: 1 1 0;
    }

    .post-nav-btn {
        font-size: 18px;
        padding: var(--spacing-xs);
        white-space: nowrap;
        min-width: auto;
    }

    .post-nav-btn span {
        display: inline-block;
        font-size: 18px;
    }

    .post-nav-btn .icon,
    .post-nav-btn .icon-large {
        width: 20px;
        height: 20px;
        flex-shrink: 0;
    }
}

/* Typography styles */
h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin: var(--spacing-md) 0;
    line-height: 1.6;
}

ul,
ol {
    margin: var(--spacing-md) 0;
    margin-left: 3rem;
    padding-left: 0;
}

ul {
    list-style: circle;
}

ul li {
    margin: var(--spacing-xs) 0;
    line-height: 1.6;
}

ol {
    counter-reset: list-counter;
    list-style: none;
}

ol li {
    position: relative;
    margin: var(--spacing-xs) 0;
    line-height: 1.6;
    padding-left: 2rem;
    counter-increment: list-counter;
}

ol li::before {
    content: counter(list-counter) '.';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

pre,
code {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

pre {
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

pre code {
    background: transparent;
    padding: 0;
}