/* CSS Variables for theming */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #64748b;
    --secondary-hover: #475569;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;

    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: #334155;
    --border-radius: 12px;
    --border-radius-sm: 8px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);

    --transition: all 0.2s ease;

    --header-height: 80px;
    --footer-height: 60px;
}

/* Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Panel Styles */
.panel {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Component Import Section */
.component-import {
    grid-column: 1;
    grid-row: 1;
}

/* Component Preview Section */
.component-preview {
    grid-column: 2;
    grid-row: 1;
}

.preview-container {
    min-height: 150px;
    background: var(--bg-color);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.preview-container.has-content {
    display: block;
    border-style: solid;
    border-width: 1px;
}

/* Interaction Controls Section */
.interaction-controls {
    grid-column: 1;
    grid-row: 2;
}

/* Interaction Log Section */
.interaction-log {
    grid-column: 2;
    grid-row: 2;
}

.log-container {
    min-height: 200px;
    max-height: 300px;
    overflow-y: auto;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8125rem;
    flex: 1;
}

.log-entry {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.log-entry:last-child {
    border-bottom: none;
}

.log-timestamp {
    color: var(--text-muted);
    font-size: 0.75rem;
    white-space: nowrap;
}

.log-type {
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    white-space: nowrap;
}

.log-type.event {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-color);
}

.log-type.state {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success-color);
}

.log-type.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error-color);
}

.log-type.info {
    background: rgba(59, 130, 246, 0.2);
    color: var(--info-color);
}

.log-message {
    flex: 1;
    word-break: break-word;
}

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

/* Performance Analysis Section */
.performance-analysis {
    grid-column: 1 / -1;
    grid-row: 3;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 1rem;
    text-align: center;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
}

.metric-value.error {
    color: var(--error-color);
}

.chart-container {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
}

.chart-container:last-child {
    margin-bottom: 0;
}

.chart-container h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.timeline {
    min-height: 60px;
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    padding: 0.5rem 0;
}

.timeline-item {
    width: 8px;
    min-width: 8px;
    border-radius: 2px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.timeline-item:hover {
    transform: scaleY(1.2);
}

.timeline-item.event {
    background: var(--primary-color);
}

.timeline-item.state {
    background: var(--success-color);
}

.timeline-item.error {
    background: var(--error-color);
}

.timeline-item::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.6875rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.timeline-item:hover::after {
    opacity: 1;
}

.distribution-chart {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    min-height: 40px;
    align-items: center;
}

.distribution-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
}

.distribution-bar {
    height: 20px;
    border-radius: 4px;
    min-width: 30px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 0.5rem;
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
}

/* Form Elements */
.input-group {
    margin-bottom: 1rem;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

input[type="text"],
select,
textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

input[type="text"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

textarea {
    min-height: 100px;
    resize: vertical;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8125rem;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

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

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

.tab-content {
    display: none;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn .icon {
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--secondary-hover);
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
}

/* Placeholder Text */
.placeholder-text {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1.25rem;
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-radius: 4px;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .component-import,
    .component-preview,
    .interaction-controls,
    .interaction-log,
    .performance-analysis {
        grid-column: 1;
        grid-row: auto;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .header h1 {
        font-size: 1.25rem;
    }

    .main-content {
        padding: 1rem;
        gap: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .metric-card {
        padding: 0.75rem;
    }

    .metric-value {
        font-size: 1.5rem;
    }

    .tabs {
        flex-wrap: wrap;
    }

    .log-controls {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .preview-controls,
    .log-controls {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.1rem;
    }

    .tagline {
        display: none;
    }

    .metrics-grid {
        grid-template-columns: 1fr 1fr;
    }

    .btn {
        width: 100%;
    }

    .distribution-chart {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Animation for log entries */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.log-entry {
    animation: slideIn 0.2s ease;
}

/* Animation for metric updates */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.metric-value.updated {
    animation: pulse 0.3s ease;
}