/* Fractal Dimension Calculator Styles - Constraint Theory Research */

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #121826;
    --bg-tertiary: #1a2233;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0b0;
    --text-muted: #6b7280;
    --accent-primary: #00ff88;
    --accent-secondary: #00d4ff;
    --accent-warm: #ff6b6b;
    --accent-purple: #a855f7;
    --border-color: #2a3444;
    --shadow-color: rgba(0, 255, 136, 0.1);
    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
}

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

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 20px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px var(--shadow-color);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* Main Layout */
main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 1400px) {
    main {
        grid-template-columns: 1fr;
    }
}

/* Control Panel */
.control-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-section {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.control-section h3 {
    color: var(--accent-primary);
    font-size: 1.1rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.control-row {
    margin-bottom: 15px;
}

.control-row label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.control-row input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-tertiary);
    outline: none;
    -webkit-appearance: none;
}

.control-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    box-shadow: 0 0 10px var(--shadow-color);
}

.control-row input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px var(--shadow-color);
}

.control-row input[type="number"],
.control-row input[type="text"] {
    width: 100%;
    padding: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.control-row select {
    width: 100%;
    padding: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.complex-input {
    display: flex;
    align-items: center;
    gap: 8px;
}

.complex-input input {
    flex: 1;
    padding: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    text-align: center;
}

/* Buttons */
button {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-color);
}

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

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

/* Canvas Container */
.canvas-container {
    position: relative;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
}

#fractalCanvas {
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.1);
    cursor: crosshair;
}

.overlay {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

/* Results Panel */
.results-panel {
    grid-column: 1 / -1;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.results-panel h3 {
    color: var(--accent-primary);
    font-size: 1.3rem;
    margin-bottom: 20px;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-tertiary);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.15);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    color: var(--accent-primary);
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.stat-description {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Log-Log Plot */
.log-log-plot {
    margin: 30px 0;
    background: var(--bg-tertiary);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.log-log-plot h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 15px;
    text-align: center;
}

#logLogCanvas {
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.plot-legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

/* Formula Display */
.formula-display {
    background: var(--bg-tertiary);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
    margin: 30px 0;
    text-align: center;
}

.formula-display h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.formula {
    color: var(--accent-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    font-family: var(--font-mono);
}

.formula sub {
    font-size: 0.7em;
}

.formula-explanation {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Constraint Insight */
.constraint-insight {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
    margin-top: 30px;
}

.constraint-insight h4 {
    color: var(--accent-secondary);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.constraint-insight p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre-line;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .control-section {
        padding: 15px;
    }

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

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

    #logLogCanvas {
        max-width: 100%;
        height: auto;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.stat-card.calculating {
    animation: pulse 1.5s infinite;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

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

/* Checkbox Styling */
input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.control-row label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}