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

body {
    font-family: 'JetBrains Mono', monospace;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    color: #b3b9ce;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Welcome Overlay Styles */
.welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.5s ease-in;
}

.welcome-dropdown {
    background: #0d1117;
    border: 2px solid #30363d;
    border-radius: 12px;
    padding: 30px;
    max-width: 900px;
    width: 95%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 255, 0, 0.2);
    animation: slideDown 0.6s ease-out;
}

.welcome-header h1 {
    color: #2185e8;
    text-align: center;
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: 500;
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
}

.welcome-content {
    color: #f0f6fc;
    line-height: 1.6;
    margin-bottom: 25px;
}

.welcome-content p {
    margin-bottom: 15px;
    font-size: 16px;
}

.example-section {
    margin: 20px 0;
}

.example-section h3 {
    color: #58a6ff;
    margin-bottom: 10px;
    font-size: 18px;
}

.example-box {
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
}

.example-box p {
    margin-bottom: 8px;
    font-size: 14px;
}

.example-box strong {
    color: #f0f6fc;
}

.instructions {
    background: #161b22;
    border-left: 4px solid #f0f6fc;
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

.instructions p {
    margin-bottom: 8px;
    font-size: 14px;
}

.command {
    background: #21262d;
    color: #f0f6fc;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

.welcome-footer {
    text-align: center;
}

.start-button {
    background: linear-gradient(135deg, #f0f6fc 0%, #98a7b5 100%);
    color: #000;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.start-button:hover {
    background: linear-gradient(135deg, #98a7b5 0%, #f0f6fc 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 0, 0.4);
}

.start-button:active {
    transform: translateY(0);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-50px);
    }
}

/* Hide welcome overlay */
.welcome-overlay.hidden {
    animation: fadeOut 0.5s ease-in forwards;
}

.welcome-dropdown.hidden {
    animation: slideUp 0.6s ease-out forwards;
}

.terminal-container {
    flex: 1;
    background: #0d1117;
    border-radius: 8px;
    margin: 20px;
    box-shadow: 0 8px 32px rgba(0, 255, 0, 0.1);
    border: 1px solid #30363d;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* Main Content Layout */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: margin-right 0.3s ease;
}

.main-content.with-output {
    margin-right: 400px;
}

/* Terminal Tabs */
.terminal-tabs {
    display: flex;
    background: #21262d;
    border-bottom: 1px solid #30363d;
    padding: 0;
    overflow-x: auto;
}

.tab {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: #21262d;
    border-right: 1px solid #30363d;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 150px;
    position: relative;
}

.tab:hover {
    background: #30363d;
}

.tab.active {
    background: #0d1117;
    border-bottom: 2px solid #f0f6fc;
}

.tab-icon {
    margin-right: 8px;
    font-size: 14px;
}

.tab-title {
    color: #f0f6fc;
    font-size: 13px;
    font-weight: 500;
    flex: 1;
}

.tab-close {
    color: #8b949e;
    margin-left: 8px;
    font-size: 16px;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.tab-close:hover {
    color: #f85149;
}

.tab-add {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background: #21262d;
    color: #8b949e;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    min-width: 40px;
}

.tab-add:hover {
    background: #30363d;
    color: #f0f6fc;
}

/* Tab Content */
.tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tab-pane {
    display: none;
    flex: 1;
    flex-direction: column;
    overflow: hidden;
}

.tab-pane.active {
    display: flex;
}

/* Console Tab Styles */
.console-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: #21262d;
    border-bottom: 1px solid #30363d;
}

.console-title {
    color: #f0f6fc;
    font-size: 14px;
    font-weight: 600;
}

.console-controls {
    display: flex;
    gap: 8px;
}

.console-btn {
    background: #30363d;
    color: #f0f6fc;
    border: 1px solid #484f58;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'JetBrains Mono', monospace;
}

.console-btn:hover {
    background: #484f58;
    border-color: #6e7681;
}

.console-btn:active {
    background: #21262d;
}

.console-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Split console layout */
.console-split {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 12px 12px 12px 12px;
    background: #0d1117;
    overflow: hidden;
}

.code-pane, .output-pane {
    display: flex;
    flex-direction: column;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
    background: #0d1117;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: #21262d;
    border-bottom: 1px solid #30363d;
}

.code-title {
    color: #f0f6fc;
    font-size: 13px;
    font-weight: 600;
}

.code-editor {
    flex: 1;
    width: 100%;
    background: #0d1117;
    color: #f0f6fc;
    border: none;
    outline: none;
    padding: 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    resize: none;
}

.console-output {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #0d1117;
}

.console-line {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    min-height: 20px;
}

.console-prompt {
    color: #58a6ff;
    margin-right: 8px;
    font-weight: 500;
}

.console-text {
    color: #f0f6fc;
}

.console-input-area {
    border-top: 1px solid #30363d;
    padding: 15px 20px;
    background: #21262d;
}

.console-input-prompt {
    display: flex;
    align-items: center;
}

.console-input {
    background: transparent;
    border: none;
    color: #f0f6fc;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    outline: none;
    flex: 1;
    padding: 4px 0;
    margin-left: 8px;
}

.console-input::placeholder {
    color: #6e7681;
}

/* Output Panel Styles */
.output-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 100%;
    background: #0d1117;
    border-left: 1px solid #30363d;
    display: flex;
    flex-direction: column;
    z-index: 10;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #21262d;
    border-bottom: 1px solid #30363d;
    flex-shrink: 0;
}

.output-title {
    color: #f0f6fc;
    font-size: 14px;
    font-weight: 600;
}

.output-controls {
    display: flex;
    gap: 6px;
}

.output-btn {
    background: #30363d;
    color: #f0f6fc;
    border: 1px solid #484f58;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'JetBrains Mono', monospace;
    min-width: 20px;
    text-align: center;
}

.output-btn:hover {
    background: #484f58;
    border-color: #6e7681;
}

.output-btn:active {
    background: #21262d;
}

.output-btn#close-outputs {
    background: #f85149;
    border-color: #f85149;
    color: #fff;
}

.output-btn#close-outputs:hover {
    background: #da3633;
    border-color: #da3633;
}

.output-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.output-content {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    background: #0d1117;
}

.output-section {
    margin-bottom: 20px;
}

.output-section h4 {
    color: #58a6ff;
    font-size: 14px;
    margin-bottom: 10px;
    border-bottom: 1px solid #30363d;
    padding-bottom: 5px;
}

.output-results,
.output-variables,
.output-functions {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 12px;
    min-height: 60px;
}

.output-placeholder {
    color: #6e7681;
    font-style: italic;
    margin: 0;
    font-size: 12px;
}

.output-item {
    color: #f0f6fc;
    margin-bottom: 8px;
    font-size: 12px;
    line-height: 1.4;
}

.output-item:last-child {
    margin-bottom: 0;
}

.variable-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid #21262d;
}

.variable-item:last-child {
    border-bottom: none;
}

.variable-name {
    color: #58a6ff;
    font-weight: 500;
}

.variable-value {
    color: #f0f6fc;
    font-family: 'JetBrains Mono', monospace;
}

.function-call {
    background: #21262d;
    border-left: 3px solid #00ff00;
    padding: 8px 12px;
    margin-bottom: 6px;
    border-radius: 0 4px 4px 0;
}

.function-call:last-child {
    margin-bottom: 0;
}

.function-name {
    color: #00ff00;
    font-weight: 600;
    font-size: 11px;
}

.function-args {
    color: #b3b9ce;
    font-size: 11px;
    margin-top: 2px;
}

/* Documentation Styles */
.docs-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #0d1117;
}

.docs-section {
    margin-bottom: 30px;
}

.docs-section h2 {
    color: #f0f6fc;
    font-size: 24px;
    margin-bottom: 15px;
    border-bottom: 2px solid #30363d;
    padding-bottom: 10px;
}

.docs-section h3 {
    color: #58a6ff;
    font-size: 18px;
    margin-bottom: 10px;
    margin-top: 20px;
}

.docs-section h4 {
    color: #f0f6fc;
    font-size: 16px;
    margin-bottom: 8px;
    margin-top: 15px;
}

.docs-section p {
    color: #b3b9ce;
    line-height: 1.6;
    margin-bottom: 15px;
}

.docs-section ul {
    color: #b3b9ce;
    margin-left: 20px;
    margin-bottom: 15px;
}

.docs-section li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.command-list {
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 15px;
}

.command-item {
    display: flex;
    margin-bottom: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #30363d;
}

.command-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.command-name {
    color: #f0f6fc;
    font-weight: 600;
    min-width: 120px;
    font-family: 'JetBrains Mono', monospace;
}

.command-desc {
    color: #b3b9ce;
    flex: 1;
}

.example-programs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.example-program {
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 15px;
}

.example-program h4 {
    color: #58a6ff;
    margin-bottom: 8px;
}

.example-program p {
    color: #b3b9ce;
    font-style: italic;
    margin: 0 0 10px 0;
}

.language-features {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 10px;
    margin-top: 8px;
    font-size: 13px;
    color: #8b949e;
}

.language-features strong {
    color: #58a6ff;
}

.terminal-header {
    background: #21262d;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #30363d;
}

.terminal-buttons {
    display: flex;
    gap: 8px;
    margin-right: 16px;
}

.btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
}

.btn.close {
    background: #ff5f56;
}

.btn.minimize {
    background: #ffbd2e;
}

.btn.maximize {
    background: #27ca3f;
}

.terminal-title {
    color: #f0f6fc;
    font-size: 14px;
    font-weight: 500;
}

/* Progress bar */
.progress-bar-container {
    height: 6px;
    background: #21262d;
    border-top: 1px solid #30363d;
    border-bottom: 1px solid #30363d;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #58a6ff, #00ff9c);
    transition: width 0.2s ease;
}

.terminal-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #0d1117;
}

.terminal-content {
    margin-bottom: 20px;
}

/* TQDM-style inline progress line inside terminal */
.tqdm-line {
    font-family: 'JetBrains Mono', monospace;
    color: #8b949e;
    margin-left: 20px;
    white-space: pre;
}

.terminal-line {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    min-height: 20px;
}

.prompt {
    color: #58a6ff;
    margin-right: 8px;
    font-weight: 500;
}

.welcome-text {
    color: #f0f6fc;
    animation: typewriter 2s steps(40) 1s 1 normal both;
}

.info-text {
    color: #8b949e;
    margin-left: 20px;
}

.cursor-blink {
    animation: blink 1s infinite;
    color: #00ff00;
}

.input-container {
    display: flex;
    align-items: center;
    margin-top: 20px;
}

.command-input {
    background: transparent;
    border: none;
    color: #f0f6fc;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    outline: none;
    flex: 1;
    padding: 4px 0;
}

.command-input::placeholder {
    color: #6e7681;
}

.status-bar {
    background: #21262d;
    padding: 12px 20px;
    display: flex;
    gap: 30px;
    border-top: 1px solid #30363d;
    font-size: 12px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-label {
    color: #8b949e;
    font-weight: 500;
}

.status-value {
    font-weight: 600;
    text-transform: uppercase;
}

.status-value.online {
    color: #00ff00;
}

.status-value.ready {
    color: #58a6ff;
}

.status-value.processing {
    color: #ffbd2e;
    animation: pulse 1s infinite;
}

.status-value.error {
    color: #f85149;
}

/* Animations */
@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Terminal scrollbar */
.terminal-body::-webkit-scrollbar {
    width: 8px;
}

.terminal-body::-webkit-scrollbar-track {
    background: #21262d;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: #30363d;
    border-radius: 4px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
    background: #484f58;
}

/* Response styling */
.response-line {
    margin: 8px 0;
    padding: 8px 0;
}

.response-line.compiler {
    color: #58a6ff;
    border-left: 3px solid #58a6ff;
    padding-left: 12px;
    margin-left: 20px;
}

.response-line.interpreter {
    color: #00ff00;
    border-left: 3px solid #00ff00;
    padding-left: 12px;
    margin-left: 20px;
}

.response-line.user-input {
    color: #ffbd2e;
    border-left: 3px solid #ffbd2e;
    padding-left: 12px;
    margin-left: 20px;
}

.response-line.error {
    color: #f85149;
    border-left: 3px solid #f85149;
    padding-left: 12px;
    margin-left: 20px;
}

/* Loading animation */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% {
        content: '';
    }
    40% {
        content: '.';
    }
    60% {
        content: '..';
    }
    80%, 100% {
        content: '...';
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .terminal-container {
        margin: 10px;
    }
    
    .terminal-body {
        padding: 15px;
    }
    
    .status-bar {
        padding: 10px 15px;
        gap: 20px;
        flex-wrap: wrap;
    }
}