/* Main Styles for MindMap Application */
:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --text-color: #333;
    --light-gray: #f1f1f1;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --node-bg-color: #fff;
    --node-selected-color: #e8f0fe;
    --node-border-color: #4285f4;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: #f5f5f5;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 100%;
    margin: 0 auto;
    background-color: white;
    box-shadow: 0 0 10px var(--shadow-color);
}

/* Header Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.main-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
}

.nav-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

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

.nav-btn.primary:hover {
    background-color: #2d9548;
}

/* Main Content Styles */
.mind-map-container {
    flex: 1;
    position: relative;
    overflow: auto;
    background-color: #f9f9f9;
    background-image: radial-gradient(#ddd 1px, transparent 1px);
    background-size: 20px 20px;
}

.mind-map-canvas {
    position: relative;
    min-height: 100%;
    min-width: 100%;
    padding: 2rem;
}

/* Node Styles */
.node {
    position: absolute;
    background-color: var(--node-bg-color);
    border: 2px solid var(--node-border-color);
    border-radius: 5px;
    padding: 8px 15px;
    min-width: 120px;
    max-width: 250px;
    box-shadow: 0 2px 5px var(--shadow-color);
    z-index: 1;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.node.selected {
    background-color: var(--node-selected-color);
    box-shadow: 0 0 0 2px var(--primary-color), 0 2px 8px var(--shadow-color);
}

.node-content {
    outline: none;
    min-height: 20px;
    word-break: break-word;
}

/* Connector Styles */
.connector {
    position: absolute;
    height: 2px;
    background-color: var(--node-border-color);
    transform-origin: left center;
    z-index: 0;
}

/* Shortcuts Panel */
.shortcuts-panel {
    position: absolute;
    bottom: 50px;
    right: 20px;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 1rem;
    box-shadow: 0 2px 10px var(--shadow-color);
    z-index: 10;
    max-width: 300px;
}

.shortcuts-panel h3 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.shortcuts-panel ul {
    list-style: none;
}

.shortcuts-panel li {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

kbd {
    background-color: var(--light-gray);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
    padding: 2px 5px;
    font-size: 0.8rem;
}

/* Footer Styles */
.app-footer {
    padding: 0.5rem 1.5rem;
    background-color: var(--light-gray);
    border-top: 1px solid var(--border-color);
}

.status-bar {
    font-size: 0.9rem;
    color: #666;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: white;
    border-radius: 5px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow: auto;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}

.modal-header h2 {
    font-size: 1.2rem;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.checkbox-group {
    margin-bottom: 0.5rem;
}

.markdown-preview {
    width: 100%;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    background-color: #f9f9f9;
    font-family: monospace;
    font-size: 0.9rem;
    overflow: auto;
    white-space: pre-wrap;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: #e0e0e0;
}

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

.btn.primary:hover {
    background-color: #3b78e7;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .shortcuts-panel {
        position: static;
        margin: 1rem;
        max-width: none;
    }
    
    .modal-content {
        width: 95%;
    }
}