/* Basic Reset & Defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Theme (Default) */
    --theme-color: #673de6;
    --text-color-light: #ffffff;
    --text-color-dark: #333;
    --border-color: #ccc;
    --hover-bg-color: #e0e0e0;
    --toolbar-bg: #f5f5f5;
    --footer-bg: #f1f1f1;
    --main-bg: #ffffff;
    --editor-bg: #ffffff;
    --editor-text: #333;
    --button-bg: #fff;
    --button-border: #ccc;
    --button-text: #333;
    --button-hover-bg: #e0e0e0;
    --button-hover-border: #bbb;
    --statusbar-bg: #f5f5f5;
    --statusbar-text: #555;
    --findbar-bg: #eee;
    --input-bg: #ffffff;
    --input-text: #333;
    --input-border: #ccc;
    --modal-bg: #fefefe;
    --modal-border: #888;
    --highlight-yellow: yellow;
}

/* Dark Theme Variables */
body.dark-mode {
    --theme-color: #7e57c2;
    --text-color-light: #e0e0e0;
    --text-color-dark: #f5f5f5;
    --border-color: #555;
    --hover-bg-color: #444;
    --toolbar-bg: #333;
    --footer-bg: #2a2a2a;
    --main-bg: #212121;
    --editor-bg: #2b2b2b;
    --editor-text: #e0e0e0;
    --button-bg: #424242;
    --button-border: #666;
    --button-text: #e0e0e0;
    --button-hover-bg: #555;
    --button-hover-border: #777;
    --statusbar-bg: #333;
    --statusbar-text: #aaa;
    --findbar-bg: #3a3a3a;
    --input-bg: #3a3a3a;
    --input-text: #e0e0e0;
    --input-border: #666;
    --modal-bg: #333;
    --modal-border: #555;
    --highlight-yellow: #f9f970;
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    background-color: var(--main-bg);
    color: var(--text-color-dark);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header */
header {
    background-color: var(--theme-color);
    color: var(--text-color-light);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

#logo {
    height: 40px;
    margin-right: 15px;
}

header h1 {
    font-size: 1.5em;
    font-weight: normal;
}

/* Main Content Area */
main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 5px;
    background-color: var(--main-bg);
}

/* Notes Management Bar */
.notes-management-bar {
    background-color: var(--toolbar-bg);
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.notes-management-bar input[type="text"],
.notes-management-bar select {
    padding: 6px 8px;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--input-text);
    border-radius: 3px;
    font-size: 0.9em;
}
.notes-management-bar input[type="text"] {
    flex-grow: 1;
    min-width: 200px;
}
.notes-management-bar select {
    min-width: 150px;
    max-width: 250px;
}
.notes-management-bar button {
    padding: 6px 12px;
    border: 1px solid var(--button-border);
    background-color: var(--button-bg);
    color: var(--button-text);
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 3px;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}
.notes-management-bar button:hover {
    background-color: var(--button-hover-bg);
    border-color: var(--button-hover-border);
}


/* Toolbar */
.toolbar {
    background-color: var(--toolbar-bg);
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px;
    flex-shrink: 0;
    transition: background-color 0.3s ease;
}

.toolbar button,
.toolbar select,
.button-like-label {
    padding: 5px 10px;
    border: 1px solid var(--button-border);
    background-color: var(--button-bg);
    color: var(--button-text);
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 3px;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
/* Specific style for image button if needed, or use emoji for visual cue */
#btnInsertImage {
    /* font-size: 1.2em; /* Make emoji slightly larger if used as text */
}


.toolbar button:hover,
.toolbar select:hover,
.button-like-label:hover {
    background-color: var(--button-hover-bg);
    border-color: var(--button-hover-border);
}

.toolbar button:active,
.button-like-label:active {
    background-color: #d0d0d0;
}

.toolbar label {
    margin-left: 5px;
    font-size: 0.9em;
    color: var(--text-color-dark);
}

.toolbar .separator {
    color: var(--border-color);
    margin: 0 5px;
    font-size: 1.2em;
    align-self: center;
}

.button-like-label {
     display: inline-block;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}


/* Find Bar */
.find-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--findbar-bg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: background-color 0.3s ease;
}

.find-bar input[type="text"] {
    flex-grow: 1;
    padding: 6px 8px;
    border: 1px solid var(--input-border);
    border-radius: 3px;
    background-color: var(--input-bg);
    color: var(--input-text);
}
.find-bar label {
    font-size: 0.85em;
    color: var(--text-color-dark);
    display: flex;
    align-items: center;
}
.find-bar input[type="checkbox"] {
    margin-right: 4px;
}

.find-bar button {
    padding: 6px 10px;
    border: 1px solid var(--button-border);
    background-color: var(--button-bg);
    color: var(--button-text);
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 3px;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}
.find-bar button:hover {
     background-color: var(--button-hover-bg);
     border-color: var(--button-hover-border);
}


/* Editor Area (Contenteditable Div) */
#notepad-area {
    flex-grow: 1;
    border: 1px solid var(--border-color);
    padding: 15px;
    font-size: 14px;
    font-family: 'Courier New', monospace;
    line-height: 1.5;
    outline: none;
    width: 100%;
    min-height: 200px;
    background-color: var(--editor-bg);
    color: var(--editor-text);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    -webkit-user-modify: read-write-plaintext-only;
}
#notepad-area::selection {
    background-color: var(--theme-color);
    color: var(--text-color-light);
}
#notepad-area .highlight {
    background-color: var(--highlight-yellow);
    color: black;
}

/* Styles for embedded images in the editor */
#notepad-area img {
    max-width: 100%; /* Ensure images don't overflow their container */
    height: auto;    /* Maintain aspect ratio */
    display: block;  /* Optional: makes images behave like blocks, easier to manage margins */
    margin-top: 5px;
    margin-bottom: 5px;
    border: 1px solid var(--border-color); /* Optional: add a light border to images */
    border-radius: 3px;
}


/* Status Bar */
.status-bar {
    padding: 5px 10px;
    background-color: var(--statusbar-bg);
    border-top: 1px solid var(--border-color);
    font-size: 0.8em;
    color: var(--statusbar-text);
    flex-shrink: 0;
    text-align: right;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.status-bar span {
    margin-left: 15px;
}
#autoSaveStatus {
    font-style: italic;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: var(--text-color-dark);
    text-align: center;
    padding: 10px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85em;
    flex-shrink: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Emoji Modal */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--modal-bg);
    margin: auto;
    padding: 20px;
    border: 1px solid var(--modal-border);
    border-radius: 5px;
    width: 80%;
    max-width: 400px;
    color: var(--text-color-dark);
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
}

.close-emoji-modal {
    color: var(--text-color-dark);
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-emoji-modal:hover,
.close-emoji-modal:focus {
    color: #f44336;
    text-decoration: none;
    cursor: pointer;
}

#emojiPickerContainer {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

#emojiPickerContainer span {
    font-size: 1.5em;
    cursor: pointer;
    padding: 5px;
    border-radius: 3px;
}
#emojiPickerContainer span:hover {
    background-color: var(--hover-bg-color);
}


/* Print Styles */
@media print {
  body, body.dark-mode {
    background-color: #fff !important;
    color: #000 !important;
  }
  header, footer, .toolbar, .status-bar, .find-bar, .notes-management-bar, .modal {
    display: none !important;
  }
  main {
      padding: 0;
      overflow: visible;
  }
  #notepad-area {
      border: none;
      height: auto !important;
      overflow: visible !important;
      box-shadow: none;
      width: 100% !important;
      font-size: 10pt !important;
      color: #000 !important;
      background-color: #fff !important;
      -webkit-print-color-adjust: exact;
      print-color-adjust: exact;
  }
  #notepad-area .highlight {
      background-color: yellow !important;
      color: black !important;
  }
  #notepad-area img { /* Ensure images print well */
      max-width: 100% !important; /* Crucial for print layout */
      page-break-inside: avoid; /* Try to avoid breaking images across pages */
  }
  #notepad-area::selection {
      background-color: #ccc !important;
      color: #000 !important;
  }
}