/**
 * Wiki application styles
 */

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --background: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --secondary-color: #94a3b8;
    --success-color: #34d399;
    --error-color: #f87171;
    --background: #0f172a;
    --surface: #1e293b;
    --border: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
                 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header */
header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0;
}

#main-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

#main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

#main-nav a:hover {
    color: var(--primary-color);
}

/* Theme toggle button */
.theme-toggle {
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: rotate(20deg);
}

.theme-toggle:hover .theme-icon {
    transform: scale(1.1);
}

.theme-icon {
    transition: transform 0.2s ease;
}

/* Main content */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Page container */
.page-container {
    background: var(--surface);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

.page-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border);
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.page-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.page-meta {
    display: flex;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Page actions */
.page-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Page content (rendered markdown) */
.page-content {
    line-height: 1.8;
}

.page-content h1 {
    font-size: 1.875rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.page-content h2 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content h3 {
    font-size: 1.25rem;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

.page-content p {
    margin-bottom: 1rem;
}

.page-content ul, .page-content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.page-content code {
    background: var(--background);
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
    font-size: 0.875rem;
    font-family: 'Courier New', monospace;
}

.page-content pre {
    background: var(--background);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.page-content pre code {
    background: none;
    padding: 0;
}

.page-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.page-content a:hover {
    text-decoration: underline;
}

/* Task list checkboxes */
.page-content .task-list-item {
    list-style-type: none;
    margin-left: -1.5rem;
}

.page-content .task-list-item input[type="checkbox"] {
    margin-right: 0.5rem;
    cursor: default;
}

.page-content .task-list-item.task-list-item-checked {
    text-decoration: line-through;
    opacity: 0.6;
}

/* Page list */
.page-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.page-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    transition: all 0.2s;
}

.page-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.page-item-content {
    flex: 1;
}

.page-item-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
}

.page-item-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.page-item-title a:hover {
    color: var(--primary-color);
}

.page-item-meta {
    display: flex;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.page-item-actions {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: var(--surface);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

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

.btn-secondary:hover {
    background: #475569;
    border-color: #475569;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.8125rem;
}

/* States */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.error {
    background: #fef2f2;
    border: 1px solid var(--error-color);
    border-radius: 5px;
    padding: 1.5rem;
    color: var(--error-color);
    text-align: center;
}

.error h2 {
    margin-bottom: 0.5rem;
}

.error p {
    margin-bottom: 1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

/* Editor styles */
.editor {
    margin-top: 1rem;
}

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.editor-toolbar-left {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

#upload-status {
    margin-bottom: 0.5rem;
}

.editor-textarea {
    width: 100%;
    min-height: 400px;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
}

.editor-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.editor-textarea.dragover {
    border-color: var(--success-color);
    background: #f0fdf4;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.editor-preview {
    min-height: 400px;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: var(--surface);
}

.editor-help {
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 1rem;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

/* Success message */
.success {
    background: #f0fdf4;
    border: 1px solid var(--success-color);
    border-radius: 5px;
    padding: 1rem;
    color: var(--success-color);
    margin-top: 1rem;
}

/* Save status */
#save-status {
    margin-top: 1rem;
}

/* Breadcrumb navigation */
.breadcrumb {
    padding: 0.75rem 0;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* Folder and page sections */
.folders-section {
    margin-bottom: 2rem;
}

.folders-section h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.pages-section h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.folder-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.folder-item {
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    transition: all 0.2s;
    background: var(--background);
}

.folder-item:hover {
    border-color: var(--primary-color);
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.folder-item a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.folder-item a:hover {
    color: var(--primary-color);
}

.form-help code {
    background: var(--background);
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.8125rem;
}

/* Search widget */
.search-widget {
    margin-bottom: 2rem;
}

.search-input-container {
    margin-bottom: 1rem;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-results {
    margin-top: 1rem;
}

.search-results-header {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.search-result-item {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.search-result-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.search-result-title {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.search-result-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.search-result-title a:hover {
    color: var(--primary-color);
}

.search-result-excerpt {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0.5rem 0;
    line-height: 1.5;
}

.search-result-meta {
    display: flex;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.search-loading {
    text-align: center;
    padding: 1rem;
    color: var(--text-secondary);
}

.search-no-results {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-style: italic;
}

.search-error {
    background: #fef2f2;
    border: 1px solid var(--error-color);
    border-radius: 5px;
    padding: 1rem;
    color: var(--error-color);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    main {
        margin: 1rem auto;
    }

    .page-container {
        padding: 1rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-actions {
        flex-direction: column;
    }

    .page-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .editor-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .editor-textarea {
        min-height: 300px;
    }
}