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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: #1a1a2e;
    color: #eee;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    margin-bottom: 10px;
    color: #00d9ff;
    font-size: 2rem;
}

/* Access Count */
.access-count {
    text-align: center;
    margin-bottom: 20px;
    color: #888;
    font-size: 0.9rem;
}

.access-count span {
    color: #50fa7b;
    font-weight: bold;
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: #16213e;
    color: #888;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 8px 8px 0 0;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: #1f3460;
    color: #ccc;
}

.tab-btn.active {
    background: #0f3460;
    color: #00d9ff;
    border-bottom: 3px solid #00d9ff;
}

/* Tab Content */
.tab-content {
    display: none;
    background: #16213e;
    border-radius: 0 8px 8px 8px;
    padding: 20px;
}

.tab-content.active {
    display: block;
}

/* Vim Editor Container */
.vim-container {
    background: #0a0a15;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #333;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    background: #1f3460;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
}

#vim-mode {
    font-weight: bold;
    padding: 2px 8px;
    border-radius: 4px;
    background: #4a9eff;
    color: #000;
}

#vim-mode.mode-insert {
    background: #50fa7b;
}

#vim-mode.mode-visual,
#vim-mode.mode-visual-line,
#vim-mode.mode-visual-block {
    background: #ff79c6;
}

#cursor-pos {
    color: #888;
}

/* CodeMirror 5 Editor Styling */
.vim-container .CodeMirror {
    height: 400px;
    font-size: 14px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    border-radius: 0 0 8px 8px;
}

.vim-container .CodeMirror-focused {
    outline: none;
}

/* Vim cursor styles for CodeMirror 5 */
.vim-container .CodeMirror.cm-fat-cursor .CodeMirror-cursor {
    background: #00d9ff !important;
    border: none !important;
    width: auto !important;
}

.vim-container .CodeMirror-cursor {
    border-left-color: #50fa7b !important;
    border-left-width: 2px !important;
}

/* Button Bar */
.button-bar {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: #0f3460;
    color: #00d9ff;
    border: 1px solid #00d9ff33;
}

.btn:hover {
    background: #1a4a7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.2);
}

.btn:active {
    transform: translateY(0);
}

/* Help Section */
.help-section {
    margin-top: 20px;
    padding: 15px;
    background: #0a0a15;
    border-radius: 8px;
    border: 1px solid #333;
}

.help-section h3 {
    color: #00d9ff;
    margin-bottom: 10px;
    font-size: 1rem;
}

.help-section ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
    list-style: none;
}

.help-section li {
    font-size: 0.85rem;
    color: #aaa;
}

.help-section kbd {
    background: #1f3460;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: #50fa7b;
    border: 1px solid #333;
}

/* Preview Tab */
.preview-controls {
    margin-bottom: 15px;
}

.preview-content {
    background: #0a0a15;
    border-radius: 8px;
    padding: 20px;
    min-height: 400px;
    max-height: 600px;
    overflow-y: auto;
    font-family: monospace;
    white-space: pre-wrap;
    word-wrap: break-word;
    line-height: 1.6;
    border: 1px solid #333;
}

/* Markdown Preview Styles */
.preview-content.markdown-body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    white-space: normal;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    color: #00d9ff;
    margin: 1em 0 0.5em 0;
    border-bottom: 1px solid #333;
    padding-bottom: 0.3em;
}

.markdown-body h1 { font-size: 1.8em; }
.markdown-body h2 { font-size: 1.5em; }
.markdown-body h3 { font-size: 1.3em; }

.markdown-body p {
    margin: 0.5em 0;
}

.markdown-body code {
    background: #1f3460;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: #50fa7b;
}

.markdown-body pre {
    background: #1f3460;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1em 0;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
}

.markdown-body ul,
.markdown-body ol {
    margin: 0.5em 0;
    padding-left: 2em;
}

.markdown-body li {
    margin: 0.3em 0;
}

.markdown-body strong {
    color: #ff79c6;
}

.markdown-body em {
    color: #ffb86c;
}

.markdown-body blockquote {
    border-left: 4px solid #00d9ff;
    margin: 1em 0;
    padding: 0.5em 1em;
    background: #1a1a2e;
    color: #aaa;
}

.markdown-body a {
    color: #8be9fd;
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid #333;
    margin: 1.5em 0;
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid #333;
    padding: 8px 12px;
    text-align: left;
}

.markdown-body th {
    background: #1f3460;
    color: #00d9ff;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.95rem;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.notification.success {
    background: #50fa7b;
    color: #000;
}

.notification.warning {
    background: #ffb86c;
    color: #000;
}

.notification.error {
    background: #ff5555;
    color: #fff;
}

.notification.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #0a0a15;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #444;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .help-section ul {
        grid-template-columns: 1fr;
    }

    .button-bar {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}