/* Right Collapsible Sidebar */
.sidebar {
    position: absolute;
    top: 50px; /* Below navbar */
    right: 0;
    bottom: 0;
    width: 320px;
    background-color: white;
    z-index: 1000;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed {
    transform: translateX(320px);
}

/* Toggle Button attached to sidebar */
.sidebar-toggle {
    position: absolute;
    left: -40px;
    top: 10px;
    width: 40px;
    height: 40px;
    background-color: white;
    border: none;
    border-radius: 5px 0 0 5px;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    cursor: pointer;
    font-weight: bold;
    color: #555;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.sidebar-content {
    padding: 0;
    overflow: hidden;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
    background: #fff;
    flex-shrink: 0;
}

#sidebar-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.btn-new-pad {
    background-color: #007bff;
    color: white;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-center-location {
    width: calc(100% - 30px);
    margin: 15px;
    padding: 10px;
    background-color: #17a2b8;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    flex-shrink: 0;
}
.btn-center-location:hover { background-color: #138496; }

.btn-add-note {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
}
.btn-add-note:hover { background-color: #218838; }

/* Sidebar Lists & Items */
.list-section { border-bottom: 1px solid #f0f0f0; }

.list-section-header,
.btn-toggle-section {
    width: 100%;
    text-align: left;
    background: #fff;
    border: none;
    padding: 12px 15px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    color: #555;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
    transition: background-color 0.2s;
}
.list-section-header:hover,
.btn-toggle-section:hover {
    background-color: #f8f9fa;
    color: #333;
}

.notepad-item, .sidebar-note-item {
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
}
.notepad-item:hover, .sidebar-note-item:hover {
    background-color: #fafafa;
}

/* Collaborator List in Share Modal */
.collaborator-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}
.collaborator-item:last-child {
    border-bottom: none;
}
.collaborator-item button {
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    font-size: 0.8rem;
}

/* Mobile Sidebar */
@media (max-width: 600px) {
    .sidebar {
        width: 85%;
        max-width: 350px;
        top: 110px; /* Adjust for taller mobile navbar */
    }
    .sidebar.collapsed {
        transform: translateX(100%);
    }
}