/* article.css (Updated) */

/* --- Article Modal Styles --- */
.article-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: none; /* Hidden by default */
    justify-content: center;
    align-items: center;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.article-modal-overlay.active {
    display: flex;
}

.article-modal-content {
    background-color: #ffffff;
    color: #0f172a;
    padding: 40px 50px;
    border-radius: 12px;
    width: 100%;
    max-width: 900px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    animation: fadeIn 0.5s ease-out;
    max-height: 90vh; 
    overflow-y: auto; 
}

body.dark-theme .article-modal-content {
    background-color: #0f172a;
    color: #e2e8f0;
    border: 1px solid #1e293b;
}

/* --- Custom Scrollbar Styles --- */
.article-modal-content::-webkit-scrollbar {
    width: 12px;
}
.article-modal-content::-webkit-scrollbar-track {
    background: #e9ecef;
    border-radius: 10px;
}
.article-modal-content::-webkit-scrollbar-thumb {
    background: #adb5bd;
    border-radius: 10px;
    border: 3px solid #e9ecef;
}
.article-modal-content::-webkit-scrollbar-thumb:hover {
    background: #6c757d;
}
body.dark-theme .article-modal-content::-webkit-scrollbar-track {
    background: #0f172a;
}
body.dark-theme .article-modal-content::-webkit-scrollbar-thumb {
    background: #334155;
    border-color: #0f172a;
}
body.dark-theme .article-modal-content::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

@keyframes fadeIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.close-article-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2.5rem;
    font-weight: bold;
    color: #64748b;
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
    line-height: 1;
    z-index: 2;
}
.close-article-btn:hover {
    color: #1e293b;
    transform: rotate(90deg);
}
body.dark-theme .close-article-btn { color: #94a3b8; }
body.dark-theme .close-article-btn:hover { color: #ffffff; }

.article-body h1 {
    font-size: 2.8rem;
    margin: 0 0 10px 0;
    line-height: 1.2;
    padding-right: 40px;
}
.article-body .article-meta {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 25px;
}
body.dark-theme .article-body .article-meta { color: #94a3b8; }
.article-body img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 25px;
}
.article-body p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}
.article-body h2 {
    font-size: 1.8rem;
    margin-top: 30px;
    margin-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 5px;
}
body.dark-theme .article-body h2 { border-bottom-color: #334155; }

/* --- Article Navigation Arrows --- */
.article-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.8);
    border: 1px solid #e2e8f0;
    color: #0f172a;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    display: none; /* Hidden by default */
    justify-content: center;
    align-items: center;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1001;
}

.article-nav.visible {
    display: flex; /* Made visible by JS */
}

body.dark-theme .article-nav {
    background-color: rgba(15, 23, 42, 0.8);
    border-color: #334155;
    color: #e2e8f0;
}
.article-nav:hover {
    transform: translateY(-50%) scale(1.1);
    background-color: #ffffff;
}
body.dark-theme .article-nav:hover { background-color: #1e293b; }

.article-nav.prev { left: 3vw; }
.article-nav.next { right: 3vw; }

@media (max-width: 1200px) {
    .article-nav { display: none !important; } /* Hide on smaller screens */
}