/* JetBrains IDE inspired theme */
:root {
    --font-mono: 'JetBrains Mono', monospace;
}

/* Light theme (IntelliJ IDEA Light) */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f7;
    --bg-tertiary: #efefef;
    --bg-sidebar: #f5f5f5;
    --bg-terminal: #ffffff;
    --border-color: #d4d4d4;
    --text-primary: #000000;
    --text-secondary: #6c6c6c;
    --text-tertiary: #999999;
    --accent: #2196f3;
    --accent-hover: #1976d2;
    --link-color: #0066cc;
    --code-bg: #f5f5f5;
    --shadow: rgba(0, 0, 0, 0.1);
    --sidebar-width: 250px;
    --terminal-height: 300px;
}

/* Dark theme (IntelliJ IDEA Darcula) */
[data-theme="dark"] {
    --bg-primary: #2b2b2b;
    --bg-secondary: #313335;
    --bg-tertiary: #3c3f41;
    --bg-sidebar: #3c3f41;
    --bg-terminal: #2b2b2b;
    --border-color: #323232;
    --text-primary: #a9b7c6;
    --text-secondary: #808080;
    --text-tertiary: #606366;
    --accent: #4a9eff;
    --accent-hover: #5aa7ff;
    --link-color: #589df6;
    --code-bg: #2f2f2f;
    --shadow: rgba(0, 0, 0, 0.5);
    --sidebar-width: 250px;
    --terminal-height: 300px;
}

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

/* Smooth transitions for theme switching */
html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

html * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* IDE Layout */
.ide-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* Sidebar (File Explorer) */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.sidebar-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.file-tree {
    padding: 8px 0;
}

.file-item {
    padding: 4px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: background-color 0.15s;
}

.file-item:hover {
    background: var(--bg-tertiary);
}

.file-item.active {
    background: var(--bg-tertiary);
    color: var(--accent);
    font-weight: 500;
}

.file-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    text-align: center;
    font-size: 14px;
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.editor-tabs {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    flex-shrink: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.editor-tab {
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.editor-tab.active {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent);
}

.editor-tab-close {
    opacity: 0.5;
    cursor: pointer;
    margin-left: 4px;
}

.editor-tab-close:hover {
    opacity: 1;
}

.editor-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
}

/* Terminal */
.terminal-container {
    height: var(--terminal-height);
    min-height: 80px;
    max-height: 80vh;
    background: var(--bg-terminal);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: relative;
}

.terminal-resize-handle {
    position: absolute;
    top: -4px;
    left: 0;
    right: 0;
    height: 8px;
    cursor: ns-resize;
    background: transparent;
    z-index: 100;
}

.terminal-resize-handle:hover,
.terminal-resize-handle.resizing {
    background: var(--accent-color);
}

.terminal-container.collapsed .terminal-resize-handle {
    display: none;
}

.terminal-header {
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.terminal-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 3px;
    transition: background-color 0.2s ease;
}

.terminal-toggle:hover {
    background: var(--bg-secondary);
}

.terminal-container.collapsed {
    height: auto;
    min-height: 0;
}

.terminal-container.collapsed .terminal-content {
    display: none;
}

.terminal-container.collapsed .terminal-header {
    border-bottom: none;
}

.terminal-content {
    flex: 1;
    padding: 4px 8px;
    overflow-y: auto;
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--text-primary);
    line-height: 1.3;
}

.terminal-line {
    margin: 0;
    padding: 0;
    white-space: pre-wrap;
    line-height: 1.3;
}

/* Terminal colors - Dark theme */
[data-theme="dark"] .terminal-prompt {
    color: #4ec9b0;
    font-weight: 500;
    transition: color 0.3s ease;
}

[data-theme="dark"] .terminal-command {
    color: #dcdcaa;
    transition: color 0.3s ease;
}

[data-theme="dark"] .terminal-output {
    color: #ce9178;
    transition: color 0.3s ease;
}

[data-theme="dark"] .terminal-cursor {
    color: #4ec9b0;
    animation: blink 1s infinite;
    transition: color 0.3s ease;
}

/* Terminal colors - Light theme */
[data-theme="light"] .terminal-prompt {
    color: #007acc;
    font-weight: 500;
    transition: color 0.3s ease;
}

[data-theme="light"] .terminal-command {
    color: #795e26;
    transition: color 0.3s ease;
}

[data-theme="light"] .terminal-output {
    color: #a31515;
    transition: color 0.3s ease;
}

[data-theme="light"] .terminal-cursor {
    color: #007acc;
    animation: blink 1s infinite;
    transition: color 0.3s ease;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Terminal Input - seamless integration */
.terminal-input-line {
    display: flex;
    align-items: center;
    padding: 0 8px 4px 8px;
    background: transparent;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.3;
    margin-left: 8px;
    padding: 0;
}

[data-theme="dark"] .terminal-input {
    color: #dcdcaa;
    caret-color: #4ec9b0;
}

[data-theme="light"] .terminal-input {
    color: #795e26;
    caret-color: #007acc;
}

.terminal-container.collapsed .terminal-input-line {
    display: none;
}

.container {
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Navbar */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 16px;
    position: relative;
    z-index: 100;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
}

.language-select {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.language-select:hover {
    background: var(--bg-tertiary);
}

.language-select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Hero Section */
.hero {
    padding: 60px 0 40px;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Achievements */
.achievements {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.achievements h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.achievement-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.achievement-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.achievement-icon {
    font-size: 24px;
}

.achievement-item strong {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
}

.achievement-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Writeups Section */
.writeups {
    padding: 40px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.category-filter {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.category-link {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    transition: all 0.2s;
}

.category-link:hover {
    background: var(--bg-tertiary);
}

.category-link.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* Writeup Grid */
.writeup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.writeup-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    transition: all 0.2s;
}

.writeup-card:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 8px var(--shadow);
}

.writeup-card a {
    text-decoration: none;
    color: inherit;
}

.writeup-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 12px;
    margin-bottom: 12px;
}

.writeup-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.category-badge {
    padding: 2px 8px;
    background: var(--accent);
    color: white;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.writeup-meta {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.writeup-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.writeup-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--text-tertiary);
}

.tags-small {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.tag-small {
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    font-size: 14px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

/* Writeup Detail */
.writeup-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.writeup-detail-header {
    margin-bottom: 32px;
}

.back-link {
    color: var(--link-color);
    text-decoration: none;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 16px;
}

.back-link:hover {
    text-decoration: underline;
}

.writeup-detail h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.writeup-meta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 16px;
}

.meta-item {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 14px;
}

.meta-label {
    color: var(--text-tertiary);
}

.meta-value {
    color: var(--text-primary);
    font-weight: 500;
}

.writeup-content {
    font-size: 14px;
    line-height: 1.8;
}

.writeup-content p {
    margin-bottom: 16px;
}

.writeup-content code {
    background: var(--code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 14px;
}

.writeup-content pre {
    background: var(--code-bg);
    padding: 16px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 16px 0;
    border: 1px solid var(--border-color);
}

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

/* Markdown Content Styling */
.markdown-content {
    font-size: 14px;
    line-height: 1.8;
}

.markdown-content h1 {
    font-size: 24px;
    font-weight: 700;
    margin: 24px 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.markdown-content h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 20px 0 12px 0;
}

.markdown-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 16px 0 8px 0;
}

.markdown-content p {
    margin: 12px 0;
}

.markdown-content ul, .markdown-content ol {
    margin: 12px 0;
    padding-left: 24px;
}

.markdown-content li {
    margin: 4px 0;
}

.markdown-content code {
    background: var(--code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 14px;
    border: 1px solid var(--border-color);
}

.markdown-content pre {
    background: var(--code-bg);
    padding: 16px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 16px 0;
    border: 1px solid var(--border-color);
}

.markdown-content pre code {
    background: none;
    padding: 0;
    border: none;
    font-size: 14px;
}

/* Code highlighting styles */
.markdown-content .codehilite {
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 12px;
    overflow-x: auto;
    margin: 12px 0;
}

.markdown-content .codehilite pre {
    margin: 0;
    padding: 0;
    background: none;
    border: none;
}

.markdown-content .codehilite code {
    background: none;
    padding: 0;
    font-size: 14px;
}

.markdown-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-secondary);
}

.markdown-content a {
    color: var(--link-color);
    text-decoration: none;
}

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

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    margin: 16px 0;
    display: block;
}

.markdown-content img[align="left"] {
    float: left;
    margin-right: 16px;
    margin-bottom: 16px;
}

.markdown-content img[align="right"] {
    float: right;
    margin-left: 16px;
    margin-bottom: 16px;
}

.markdown-content img[align="center"] {
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.markdown-content th,
.markdown-content td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.markdown-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .ide-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .terminal-container {
        height: 150px;
    }
    
    .hero h1 {
        font-size: 24px;
    }
    
    .writeup-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-content {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .writeup-detail h1 {
        font-size: 22px;
    }
}