/* OWP Application Styles */

:root {
    --bg-primary: #0f1419;
    --bg-secondary: #1a2332;
    --bg-panel: #1e2a3a;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --accent-blue: #4a9eff;
    --accent-green: #34d399;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --border: #2d3748;
    --canvas-bg: #111827;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

header {
    background: var(--bg-secondary);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 1.4rem;
    font-weight: 600;
}

header .subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    flex: 1;
}

main {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    max-width: 1600px;
    margin: 0 auto;
}

/* Controls Panel */
.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    min-width: 260px;
    max-width: 280px;
}

.panel h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--accent-blue);
}

.control-group {
    margin-bottom: 0.75rem;
}

.control-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

select, input[type="range"] {
    width: 100%;
    padding: 0.4rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
}

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

input[type="range"] {
    -webkit-appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    padding: 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.2s;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn:hover:not(:disabled) {
    opacity: 0.85;
}

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

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-accent {
    background: var(--accent-orange);
    color: #1a1a1a;
}

.btn-info {
    background: transparent;
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
}

.status-bar {
    margin-top: 1rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    min-height: 2.5rem;
}

/* Visualization Grid */
.grid-container {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, auto);
    gap: 1rem;
}

.grid-item {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.grid-item h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

canvas {
    background: var(--canvas-bg);
    border-radius: 4px;
    image-rendering: pixelated;
    max-width: 100%;
    height: auto;
}

/* Metrics Panel */
.metrics-content {
    width: 100%;
    font-size: 0.8rem;
}

.metrics-content .placeholder {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 2rem 0;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--border);
}

.metric-row .label {
    color: var(--text-secondary);
}

.metric-row .value {
    font-weight: 600;
    font-family: monospace;
}

.metric-row .value.good {
    color: var(--accent-green);
}

.metric-row .value.moderate {
    color: var(--accent-orange);
}

.metric-row .value.poor {
    color: var(--accent-red);
}

/* Help Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-content h2 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.modal-content h3 {
    color: var(--accent-green);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.modal-content p, .modal-content li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.modal-content code {
    background: var(--bg-secondary);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-family: monospace;
    color: var(--accent-orange);
}

.modal-content ol, .modal-content ul {
    padding-left: 1.5rem;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.close-btn:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 1200px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 800px) {
    main {
        flex-direction: column;
    }
    .panel {
        max-width: 100%;
    }
    .grid-container {
        grid-template-columns: 1fr;
    }
}