/* ===========================
   SEMINAR DETAILS LAYOUT
   =========================== */
.seminar-details-section {
    background-color: rgba(230, 255, 250, 0.70);
    padding: var(--spacing-xl) 0;
}

.seminar-layout {
    display: grid;
    grid-template-columns: 220px 1fr 320px; /* Wider sidebars */
    gap: var(--spacing-xl); /* More gap */
    align-items: start;
    max-width: 1600px; /* Wider max-width */
    margin: 0 auto;
}

/* ===========================
   STICKY SIDE MENU
   =========================== */
.sticky-menu {
    position: sticky;
    top: 200px; /* Changed from 200px */
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.70);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 8px rgba(44, 122, 123, 0.1);
    word-wrap: break-word; /* Allow text wrapping */
}

.sticky-menu h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.sticky-menu nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sticky-menu nav li {
    margin-bottom: var(--spacing-sm);
}

.sticky-menu nav a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-color);
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
    word-wrap: break-word; /* Allow text wrapping */
}

.sticky-menu nav a:hover {
    background-color: rgba(56, 178, 172, 0.1);
    color: var(--secondary-color);
    transform: translateX(5px);
}

.sticky-menu nav a.active {
    background-color: var(--accent-color);
    color: var(--white);
}

/* ===========================
   SEMINAR CONTENT
   =========================== */
.seminar-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.seminar-item {
    background-color: rgba(255, 255, 255, 0.70);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    scroll-margin-top: 150px; /* More offset for sticky header */
}

.seminar-item h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.seminar-meta {
    display: flex;
    flex-wrap: wrap; /* Allow wrapping */
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.seminar-meta span {
    color: var(--text-light);
    font-size: 0.95rem;
}

.seminar-description {
    margin-bottom: var(--spacing-md);
}

.seminar-description p {
    color: var(--text-color);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.seminar-description h4 {
    color: var(--secondary-color);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.seminar-description ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
}

.seminar-description li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--text-color);
    line-height: 1.5;
}

.seminar-description li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===========================
   TIMETABLES SIDEBAR
   =========================== */
.sidebar {
    position: sticky;
    top: 200px;
    height: fit-content;
    z-index: 999;
}

.appointments-box {
    background-color: rgba(255, 255, 255, 0.50);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 8px rgba(44, 122, 123, 0.1);
}

.appointments-box h3 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

/* PDF Item */
.pdf-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.70);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.pdf-item:hover {
    box-shadow: 0 4px 10px rgba(44, 122, 123, 0.2);
}

.pdf-item-header {
    display: flex;
    align-items: flex-start; /* Changed from center */
    gap: var(--spacing-xs);
}

.pdf-icon-sidebar {
    color: #dc3545;
    flex-shrink: 0;
    width: 24px; /* Fixed width */
    height: 24px;
}

.pdf-item-info {
    flex: 1;
    min-width: 0; /* Allow shrinking */
}

.pdf-item-info h4 {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin: 0;
    word-wrap: break-word; /* Allow text wrapping */
    line-height: 1.3;
}

.pdf-item-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.btn-sidebar-view,
.btn-sidebar-download {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 8px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.75rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-sidebar-view {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-sidebar-view:hover {
    background-color: #1a6566;
    transform: translateY(-2px);
}

.btn-sidebar-download {
    background-color: #28a745;
    color: var(--white);
}

.btn-sidebar-download:hover {
    background-color: #218838;
    transform: translateY(-2px);
}

.btn-sidebar-view svg,
.btn-sidebar-download svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* PDF Modal */
.pdf-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
}

.pdf-modal-content {
    position: relative;
    width: 90%;
    height: 90%;
    margin: 2% auto;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
}

.pdf-modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: white;
    background-color: #dc3545;
    border: none;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10002;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.pdf-modal-close:hover {
    background-color: #c82333;
    transform: scale(1.1);
}

#pdfViewer {
    border: none;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1400px) {
    .seminar-layout {
        grid-template-columns: 200px 1fr 300px;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 1024px) {
    .seminar-layout {
        grid-template-columns: 180px 1fr 280px;
    }
}

@media (max-width: 768px) {
    .seminar-layout {
        grid-template-columns: 1fr;
    }
    
    .sticky-menu,
    .sidebar {
        position: static;
        margin-bottom: var(--spacing-lg);
    }
    
    .sticky-menu nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .sticky-menu nav li {
        margin-bottom: 0;
    }
}