:root {
    --primary-color: #4a90e2;
    --secondary-color: #5f6caf;
    --background-light: #f5f7fa;
    --text-color: #333;
    --border-radius: 12px;
    --box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-light);
}

.container {
    display: flex;
    height: 100vh;
    max-width: 1920px;
    margin: 0 auto;
}

.file-panel {
    width: 280px;
    background-color: white;
    border-right: 1px solid #e6e9f0;
    padding: 20px;
    overflow-y: auto;
    box-shadow: 4px 0 15px rgba(0,0,0,0.05);
}

.notepad-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background-color: #f9fafb;
}

.notepad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.notepad-header h1 {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.toolbar {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    background-color: #f1f3f5;
    color: var(--text-color);
}

.btn.primary {
    background-color: var(--primary-color);
    color: white;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

#editor-container {
    flex-grow: 1;
    background-color: white;
    margin: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

#toolbar {
    background-color: #f9fafb;
    padding: 10px 20px;
    border-bottom: 1px solid #e6e9f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#editor {
    height: calc(100% - 60px);
    padding: 20px;
}

.ad-banner {
    height: 90px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e6e9f0 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 20px;
    border-radius: var(--border-radius);
}

.seo-content {
    padding: 40px;
    background-color: white;
    margin: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .file-panel {
        width: 100%;
        height: auto;
    }
}

/* Additional styling for toolbar elements */
#toolbar .ql-formats {
    display: flex;
    align-items: center;
    gap: 8px;
}

#word-count {
    font-weight: 500;
    color: var(--secondary-color);
}

#fullscreen-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
}

.tiny-toolbar {
    display: flex;
    gap: 5px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 4px;
    padding: 3px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    margin-right: 10px;
}

.tiny-toolbar.hidden {
    display: none;
}

.mini-btn {
    width: 24px;
    height: 24px;
    border-radius: 3px;
    border: 1px solid #e6e9f0;
    background: white;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.mini-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.mini-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

#toggle-tiny-toolbar {
    font-size: 0.8rem;
    padding: 4px 8px;
    margin-right: 10px;
}