/* --- Notes Page Styles (V4 - The Ultimate Fix) --- */

.notebook-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.notebook-page {
    background-color: #fdfdf8;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    padding: 30px;
    min-height: 70vh;
    display: flex;
    flex-direction: column;
}

.page-header {
    border-bottom: 2px solid #d44;
    padding-bottom: 10px;
    margin-bottom: 10px;
    text-align: left;
    direction: ltr;
}

#note-date {
    font-family: 'Vazirmatn', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #555;
}

/* --- The Bulletproof 2-Layer System --- */
.textarea-container {
    position: relative;
    flex-grow: 1;
}

.lines-container {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none; /* Makes it non-interactive */
    z-index: 1;
}

#note-content {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    resize: none;
    padding: 0 10px;
    font-family: 'Vazirmatn', sans-serif;
    background-color: transparent; /* CRUCIAL */
    z-index: 2; /* Above the lines */
    font-size: 18px;
    line-height: 32px;
}

.notebook-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 8px;
}

/* (Rest of the styles remain the same) */
.notebook-controls .nav-btn { background: none; border: 1px solid #ccc; padding: 8px 15px; border-radius: 6px; cursor: pointer; font-family: 'Vazirmatn', sans-serif; transition: background-color 0.2s; }
.notebook-controls .nav-btn:hover { background-color: #e9e9ed; }
.notebook-controls .nav-btn:disabled { opacity: 0.5; cursor: not-allowed; }
#page-indicator { font-size: 16px; font-weight: 600; color: #333; }
.notes-footer { margin-top: 20px; text-align: center; }

@media (max-width: 600px) {
    .notebook-page { padding: 20px 15px; }
    #note-content { font-size: 16px; line-height: 28px; }
    .notebook-controls { padding: 8px; }
    .notebook-controls .nav-btn { padding: 6px 10px; font-size: 13px; }
}