:root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #252526;
    --bg-tertiary: #2d2d2d;
    --bg-card: #333333;
    --bg-header: #3d3226;
    --accent: #00b8a3;
    --accent-hover: #00d4bb;
    --accent-glow: rgba(0, 184, 163, 0.3);
    --success: #00b8a3;
    --error: #ff6b6b;
    --warning: #ffa502;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #6a6a6a;
    --border: #404040;
    --border-focus: #00b8a3;
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f0f0;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #888888;
    --border: #e0e0e0;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.header {
    padding: 0 2rem;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: var(--bg-header);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: #5b4636;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: bold;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle */
.btn-theme {
    background: transparent;
    border: 1px solid var(--border);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-primary);
}

.btn-theme:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-muted);
}

.theme-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    height: calc(100vh - 50px);
    background: var(--border);
}

.panel {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
}

.panel-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.625rem;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

select {
    appearance: none;
    padding: 0.5rem 2rem 0.5rem 1rem;
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

select:hover {
    border-color: var(--accent);
}

select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-run {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--accent);
    border: none;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-run:hover {
    background: var(--accent-hover);
}

.btn-run:active {
    transform: scale(0.98);
}

.btn-run:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-run .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.editor-container {
    flex: 1;
    position: relative;
    /* overflow: hidden; Removed for CodeMirror */
    background: var(--bg-secondary);
}

/* CodeMirror Customization */
.CodeMirror {
    height: 100% !important;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    background: transparent;
}

.cm-s-monokai.CodeMirror {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

.cm-s-monokai .CodeMirror-gutters {
    background-color: var(--bg-tertiary) !important;
    border-right: 1px solid var(--border) !important;
}

.cm-s-monokai .CodeMirror-linenumber {
    color: var(--text-muted) !important;
}

body.light-theme .cm-s-eclipse.CodeMirror {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--accent);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.input-section {
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.input-header {
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.input-hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.7;
}

.input-textarea {
    width: 100%;
    min-height: 80px;
    max-height: 120px;
    padding: 0.75rem 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    background: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    resize: vertical;
    outline: none;
}

.input-textarea::placeholder {
    color: var(--text-muted);
}

.input-textarea:focus {
    background: var(--bg-card);
}

.output-panel {
    display: flex;
    flex-direction: column;
}

.output-tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.output-tab {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.output-tab:hover {
    color: var(--text-secondary);
    background: var(--bg-card);
}

.output-tab.active {
    color: var(--text-primary);
    background: var(--bg-card);
}

.output-content {
    flex: 1;
    padding: 1rem;
    overflow: auto;
}

.output-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

.output-text.success {
    color: var(--success);
}

.output-text.error {
    color: var(--error);
}

.stats-bar {
    display: flex;
    gap: 1.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
}

.stat-value {
    color: var(--text-secondary);
    font-weight: 500;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-indicator.error {
    background: var(--error);
    box-shadow: 0 0 8px var(--error);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 0.875rem;
}

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .header {
        padding: 0.75rem 1rem;
    }
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.execution-result {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.status-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1rem;
}

.status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.status-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-icon {
    font-size: 1.25rem;
}

.status-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.status-text {
    font-weight: 600;
    font-size: 0.9rem;
}

.status-card.success .status-text {
    color: var(--success);
}

.status-card.error .status-text {
    color: var(--error);
}

.status-card.queued .status-text {
    color: var(--warning);
}

.status-message {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.stats-row {
    display: flex;
    gap: 1rem;
}

.stat-box {
    flex: 1;
    background: var(--bg-card);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-data {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.output-section {
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
}

.output-header {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.output-header.error-header {
    color: var(--error);
}

.output-code {
    padding: 1rem;
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 300px;
    overflow-y: auto;
}

.output-code.success {
    color: var(--success);
}

.output-code.error {
    color: var(--error);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.status-card.queued {
    animation: pulse 1.5s ease-in-out infinite;
}

.btn-ai-explain {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: inherit;
    background: #4a90d9;
    border: none;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-ai-explain:hover {
    background: #5a9fe9;
}

.btn-ai-explain:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.ai-explanation {
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
}

.ai-loading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    color: var(--text-secondary);
}

.ai-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.ai-result {
    padding: 1rem;
}

.ai-explanation-text {
    padding: 0.75rem;
    background: rgba(74, 144, 217, 0.1);
    border-left: 3px solid #4a90d9;
    border-radius: 4px;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.ai-corrected-code {
    background: var(--bg-tertiary);
    border-radius: 8px;
    overflow: hidden;
}

.ai-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-copy {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-family: inherit;
    background: var(--accent);
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-copy:hover {
    background: var(--accent-hover);
}

.ai-code {
    padding: 1rem;
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--success);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 300px;
    overflow-y: auto;
}

.ai-error {
    padding: 1rem;
    color: var(--error);
    font-size: 0.875rem;
}

.btn-share {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 10px;
}

.btn-share:hover {
    background: var(--bg-card);
    border-color: var(--text-muted);
}

.btn-share:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-in-out;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    min-width: 400px;
    max-width: 500px;
    animation: slideUp 0.3s ease-out;
}

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

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.share-status {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    display: none;
}

.share-status.success {
    display: block;
    background: rgba(0, 184, 163, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 184, 163, 0.3);
}

.share-status.error {
    display: block;
    background: rgba(255, 107, 107, 0.1);
    color: var(--error);
    border: 1px solid rgba(255, 107, 107, 0.3);
}

.share-url-container {
    margin-bottom: 1.5rem;
}

.share-url-container label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.url-input-group {
    display: flex;
    gap: 0.5rem;
}

.share-url-input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.share-url-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-copy {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-copy:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

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

.share-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

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