/* ========================================================================
   === NOTIFICATION PAGE STYLES (FINAL, FULLY DETAILED & RESPONSIVE) ===
   ======================================================================== */

/* --- Main Layout & Structure --- */
.notification-page-wrapper { display: flex; flex-direction: column; height: 100%; padding: 1rem; gap: 1rem; }
.page-header { display: flex; justify-content: space-between; align-items: center; padding: 0 0.5rem; flex-shrink: 0; }
.page-header h1 { margin: 0; font-size: 1.75rem; display: flex; align-items: center; gap: 0.75rem; }
.header-actions { display: flex; gap: 0.75rem; }
.notification-layout { display: grid; grid-template-columns: minmax(320px, 1fr) 2fr; gap: 1rem; flex-grow: 1; height: 0; overflow: hidden; position: relative; }
.notification-list-pane, .notification-detail-pane { background-color: var(--card-background); border: 1px solid var(--border-color); border-radius: var(--radius-lg); display: flex; flex-direction: column; overflow: hidden; }
.notification-list-pane { overflow-y: auto; }

/* --- List Item Styling --- */
.notification-item { display: flex; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border-color); cursor: pointer; gap: 1rem; }
.notification-item:last-child { border-bottom: none; }
.notification-item:hover { background-color: var(--content-bg); }
.notification-item.active { background-color: var(--primary-light); }
.item-status .unread-dot { width: 10px; height: 10px; background-color: var(--primary-color); border-radius: 50%; }
.item-details { flex-grow: 1; min-width: 0; }
.item-sender { font-weight: 600; color: var(--text-primary); }
.notification-item.is-read .item-sender { font-weight: 400; color: var(--text-secondary); }
.item-preview { font-size: 0.9rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-date { font-size: 0.8rem; color: var(--text-secondary); flex-shrink: 0; }

/* --- RESTORED & ENHANCED DETAIL PANE STYLING --- */
.detail-header { display: flex; align-items: center; gap: 1rem; padding: 1.25rem; border-bottom: 1px solid var(--border-color); }
.detail-avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
.detail-sender-info { flex-grow: 1; }
.detail-sender-info h4, .detail-sender-info p { margin: 0; }
.detail-sender-info h4 { color: var(--text-primary); }
.detail-sender-info p { font-size: 0.9rem; color: var(--text-secondary); }
.detail-meta { text-align: right; }
.detail-meta h5 { margin: 0 0 0.25rem 0; font-size: 1rem; color: var(--text-primary); }
.detail-meta p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

.detail-body { padding: 2rem; overflow-y: auto; flex-grow: 1; line-height: 1.7; }
.detail-body .message-content { white-space: pre-wrap; margin-bottom: 2rem; }

.project-details-card { background-color: var(--background); border: 1px solid var(--border-color); border-left: 4px solid var(--primary-color); border-radius: var(--radius-md); padding: 1.5rem; margin: 1rem 0; box-shadow: var(--shadow-sm); }
.project-details-card h5 { margin: 0 0 1.25rem 0; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-color); font-size: 1.1rem; color: var(--text-primary); }
.details-grid { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem 2rem; font-size: 0.95rem; }
.details-grid .label { color: var(--text-secondary); font-weight: 500; }
.details-grid .value { font-weight: 600; color: var(--text-primary); text-align: right; }

/* --- Header Actions, FAB, & Responsive --- */
.header-actions .btn { display: flex; align-items: center; gap: 0.5rem; }
.danger-item:hover { background-color: var(--danger-light) !important; color: white !important; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.btn.is-loading > i { animation: spin 1s linear infinite; }
.mobile-fab { display: none; }

@media (max-width: 768px) {
    .header-actions .btn span { display: none; }
    .notification-list-pane { position: absolute; width: 100%; height: 100%; top: 0; left: 0; z-index: 1000; transform: translateX(-100%); transition: transform 0.3s ease-in-out; }
    .notification-layout.list-view-active .notification-list-pane { transform: translateX(0); }
    .notification-layout { grid-template-columns: 1fr; }
    .mobile-fab { display: flex; align-items: center; justify-content: center; position: fixed; bottom: 1.5rem; right: 1.5rem; width: 56px; height: 56px; border-radius: 50%; background-color: var(--primary-color); color: white; border: none; box-shadow: var(--shadow-lg); font-size: 1.5rem; z-index: 1050; }
    .mobile-fab .icon-close { display: none; }
    .mobile-fab.is-active .icon-open { display: none; }
    .mobile-fab.is-active .icon-close { display: block; }
}