body {
        margin: 0;
        padding: 0;
        background-image:url('bg_diamond.png');
        background-color: #efdcef ;
        background-size: 100px;
        font-family: Arial, sans-serif;
    }

    .container {
        width: 94%;
        max-width: 1700px;
        margin: 40px auto;
        background: linear-gradient(#ffffff, #e8e8e8);
        border-radius: 12px;
        padding: 20px;
        box-shadow: 0 0 20px rgba(0,0,0,0.3);
        display: flex;
        gap: 20px;
    }

    /* Title */
    .title {
        width: 100%;
        text-align: center;
        font-size: 48px;
        font-family: "Georgia", serif;
        font-weight: bold;
        letter-spacing: 3px;
        margin-bottom: 20px;
        color: #444;
        text-shadow: 1px 1px 3px #aaa;
    }

    /* Sidebar */
    .sidebar {
        width: 25%;
        background: #dcdcdc;
        padding: 15px;
        border-radius: 10px;
        height:1180px;
        overflow-y: auto;
        box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
    }

    .sidebar button {
        width: 100%;
        padding: 10px;
        margin-bottom: 10px;
        background: #bfbfbf;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-weight: bold;
    }

    .note-link {
        display: block;
        padding: 10px;
        background: #efefef;
        margin-bottom: 8px;
        border-radius: 6px;
        cursor: pointer;
        border-left: 5px solid #999;
    }

    .note-link:hover {
        background: #e0e0e0;
    }

    /* Editor Column */
    .editor-column {
        width: 75%;
        display: flex;
        flex-direction: column;
    }

    /* Rich Text Toolbar */
    .toolbar {
        background: #bbb;
        padding: 5px;
        margin-bottom: 10px;
    }

    .toolbar select, .toolbar input {
        padding: 5px;
        margin-right: 10px;
    }
    .toolbar select {
    padding: 5px;
    margin-right: 8px;
    border-radius: 5px;
}
    /* Notebook Body */
    .note-body {
        height: 1100px;
        background: repeating-linear-gradient(
            white,
            white 28px,
            #b3d1ff 29px
        );
        border-left: 4px solid #ff4d4d;
        padding: 20px;
        overflow-y: scroll;
        font-size: 18px;
        line-height: 28px;
        border-radius: 10px;
        box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
    }

    .note-body:focus {
        outline: none;
    }

    /* Text Counter */
    .counter {
        margin-top: 10px;
        padding: 10px;
        background: #f2f2f2;
        border-radius: 6px;
        color: #666;
        font-size: 14px;
    }

    button{
        background: #121212;
        color: #f4f4f4;
        border: 2px solid #000;
    }

    /* Footer */
    footer {
        text-align: center;
        margin-top: 30px;
        color: #444;
        font-size: 14px;
    }